Patent Publication Number: US-11643819-B2

Title: Roof drain cover

Description:
INCORPORATION BY REFERENCE TO ANY PRIORITY APPLICATIONS 
     Any and all applications, for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application, are hereby incorporated by reference under 37 CFR 1.57. 
     This application is a continuation of U.S. patent application Ser. No. 16/997,699 entitled ROOF DRAIN COVER and filed on Aug. 19, 2020, which is a continuation-in-part of U.S. patent application Ser. No. 16/906,274 entitled ROOF DRAIN COVER and filed on Jun. 19, 2020, which is a continuation of U.S. patent application Ser. No. 15/915,564 entitled ROOF DRAIN COVER and filed on Mar. 8, 2018, now U.S. Pat. No. 10,711,463 issued Jul. 14, 2020, which is a continuation-in-part of U.S. patent application Ser. No. 15/016,880, entitled ROOF DRAIN COVER and filed on Feb. 5, 2016, now U.S. Pat. No. 9,945,125 issued Apr. 17, 2018, which claims the benefit of priority under 35 U.S.C. § 119(e) to U.S. provisional patent application No. 62/113,255, entitled ROOF DRAIN COVER and filed Feb. 6, 2015, to U.S. provisional patent application No. 62/113,701, entitled ROOF DRAIN COVER and filed Feb. 9, 2015, and to U.S. provisional patent application No. 62/268,945, entitled ROOF DRAIN COVER and filed Dec. 17, 2015, and said U.S. patent application Ser. No. 15/915,564 claims the benefit of U.S. provisional patent application No. 62/520,195, entitled ROOF DRAIN COVER and filed Jun. 15, 2017, the entire disclosure of each of which is incorporated herein by reference for all purposes and forms a part of this specification. 
    
    
     BACKGROUND 
     Field 
     This disclosure relates generally to covers for drains. In particular, a cover for a roof drain is disclosed that includes features to prevent and/or reduce the blockage of roof drains by solid debris. 
     Description of the Related Art 
     A variety of drains exist for removing unwanted fluids, such as rainwater or melted snow. Some drains are intended for the roof in order to drain such fluids from the tops of buildings or other structures. Because roof drains are typically exposed to the elements, they are susceptible to damage or clogging from a variety of sources. Also, due to their isolation, any damage or tampering with such drains may go unnoticed until a problem occurs with the functioning of the drain. Further, harmful elements may damage or clog the drains, such as hail or strong winds and solid debris carried by such elements. Other drains besides those intended for the roof may also be susceptible to similar problems. For example, street drains may be susceptible to clogging from collected street debris or to damage by passersby. Therefore, drains in many contexts may be exposed to danger. 
     Because of these and other concerns, some drains may be fitted with a cover. The cover may protect the drain from such harmful influences. However, typical drain covers have many drawbacks. They typically must be fastened to the drains and thus must be compatible with the geometry or corresponding structure of the particular drain type being covered. This limits the number of types of drains that may be fitted with the covers. In addition, conventional drain covers easily clog and prevent the passage of fluid, due to leaves or other debris building up along the outside of the covers. Typical drain covers receive fluids through spaces defined by vertically-oriented members and have gravel guards near the base of the covers to prevent gravel and other small solid debris from flowing into the cover. If leaves or other debris block these members and the spaces in between, then water is prevented from flowing through the cover and entering the drain. Further, the gravel guard on typical covers severely impede the flow of fluids into the cover as well. 
     There is therefore a need for improved drain covers that overcome the aforementioned drawbacks. 
     SUMMARY 
     Features are disclosed for a drain cover. The cover may be used with roof drains, but it is not limited to use with only roof drains. The cover may be used with floor drains, indoor or outdoor drains, street grating, and other drains. The cover may be installed and removed over these and other drains easily and quickly. The drain allows for fluid flow while preventing and/or reducing blockage. The cover may prevent and/or reduce buildup of flow-impeding debris on and along the outside of the drain and the cover, and the cover may allow passage of fluid through the cover and into the drain even when there is a buildup of debris on or around the cover. The cover may have an advantageously-designed body including an extended outer flow ring, or “skirt,” that contributes to the improved fluid collection capability. 
     In one aspect, a cover for a drain is disclosed. The cover comprises a dome and a skirt. The dome has a sidewall with a lower portion. The sidewall defines a central axis and forms a plurality of first openings extending through the sidewall. At least a portion of the lower portion is located a perpendicular distance R 1  from the central axis. The skirt is coupled with the lower portion of the sidewall and has an outer edge. At least a portion of the skirt flares outward from the lower portion toward the outer edge in a first direction that is generally away from the central axis and generally away from the dome. The first direction forms an angle A with a portion of the central axis that extends below the skirt. The skirt forms a plurality of second openings extending through the skirt. At least a portion of the outer edge of the skirt is located a perpendicular distance R 2  from the central axis. The angle A may be greater than or equal to ninety degrees. 
     In some embodiments, R 2  is at least twice R 1 . In some embodiments, the dome and skirt may be swept out arcuately about the central axis. In some embodiments, the skirt may have a four-sided planform. In some embodiments, the dome comprises a first and a second dome portion that are moveable with respect to the skirt. In some embodiments, the skirt may further comprise a plurality of lower ribs, wherein the plurality of lower ribs define the plurality of second openings extending through the skirt. In some embodiments, the angle A may be greater than ninety degrees. In some embodiments, at least one of the plurality of lower ribs extends perpendicular to the central axis. In some embodiments, the dome further comprises a plurality of upper ribs, and wherein each of the plurality of upper ribs is coupled with one of the plurality of lower ribs. In some embodiments, the plurality of first openings of the dome are wider than the plurality of second openings of the skirt. In some embodiments, the dome further comprises a removable lid at a top portion of the dome. In some embodiments, the lid comprises a handle projecting therefrom and configured to be grasped by a user to remove the lid from the top. 
     In another aspect, a cover for a drain is disclosed comprising a lower portion defining a central vertical axis. The lower portion comprises an outer perimeter, a plurality of lower ribs and a plurality of lower spaces. The lower portion defines a horizontal plane substantially orthogonal to the central vertical axis. The a plurality of lower ribs are connected to the outer perimeter and extend away from the central vertical axis at an angle A with respect to a portion of the central vertical axis that extends below the lower portion. The angle A is greater than or equal to 90 degrees. The plurality of lower spaces extend through the lower portion and are configured to allow fluid flow therethrough. 
     In some embodiments, the cover may further comprise an outer ring configured to couple to the outer perimeter of the lower portion and to at least partially cover the outer perimeter when coupled thereto; and an upper portion comprising: a plurality of upper ribs each having a first end and a second end opposite the first end, the first end coupled with the plurality of lower ribs of the lower portion, and extending away from the lower portion at an acute angle B with respect to a portion of the central axis that extends above the lower portion; and a plurality of upper spaces in between and defined at least partially by the plurality of upper ribs; and a top coupled with the second ends of the plurality of upper ribs of the upper portion. In some embodiments, the angle A may be greater than 90 degrees. In some embodiments, at least one of the plurality of lower ribs extends perpendicular to the central vertical axis. 
     In another aspect, a cover for a drain is disclosed that comprises a dome and skirt. The dome is configured to couple with the skirt. The dome comprises a sidewall, an outer edge, a flat portion and an angled portion. The sidewall has a lower portion. The sidewall forms a plurality of second openings extending through the sidewall. The plurality of second openings are configured to allow fluid to flow through. The flat portion is coupled with at least part of the lower portion of the sidewall. The flat portion extends horizontally outward from the lower portion of the sidewall towards the outer edge. The angled portion is coupled with at least part of the flat portion. The angled portion extends outward from the flat portion towards the outer edge at a different angle than the flat portion. The angled portion forms a plurality of first openings extending through the angled portion, with the plurality of first openings configured to allow fluid to flow through. 
     In some embodiments, the angled portion extends along a first direction at an angle C with respect to a portion of a central axis that extends below the skirt, and wherein the angle C is greater than 90 degrees. In some embodiments, the skirt has a generally rectangular planform. In some embodiments, the angled portion further comprising at least two separate sub-portions each configured to be moveably coupled with the skirt. 
     In another aspect, a cover for a drain is disclosed. The cover may comprise a dome having an arcuate sidewall with a lower portion, wherein the sidewall defines a central axis and forms a plurality of first openings extending through the sidewall, and wherein the lower portion is located a perpendicular distance R 1  from the central axis. The cover may further comprise an arcuate skirt coupled with the lower portion of the sidewall and having an outer edge, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the central axis and generally away from the dome. The first direction may form an acute angle A with a portion of the axis that extends below the skirt, wherein the skirt forms a plurality of second openings extending through the skirt, and wherein the outer edge of the skirt is located a perpendicular distance R 2  from the axis, and wherein R 2  is at least twice R 1 . 
     In some embodiments, R 2 ≥2.25×R 1 . In some embodiments, R 2 ≥2.5×R 1 . In some embodiments, R 2 ≥2.75×R 1 . In some embodiments, R 2 ≥3×R 1 . 
     In some embodiments, the acute angle A is greater than or equal to eighty-five degrees. In some embodiments, the acute angle A is greater than or equal to eighty degrees. In some embodiments, the acute angle A is greater than or equal to seventy-five degrees. In some embodiments, the acute angle A is greater than or equal to seventy degrees. In some embodiments, the acute angle A is greater than or equal to sixty-five degrees. In some embodiments, the acute angle A is greater than or equal to sixty degrees. 
     In some embodiments, the dome and skirt may be swept out arcuately 360 degrees about the central axis. In some embodiments, R 1  and R 2  may be radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and the dome and skirt may be swept out circularly 360 degrees about the central axis. In some embodiments, the dome and skirt may be swept out arcuately less than 360 degrees about the central axis. In some embodiments, R 1  and R 2  may be radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and the dome and skirt may be swept out circularly less than 360 degrees about the central axis. In some embodiments, the dome and skirt may be swept out arcuately less than or equal to 180 degrees about the central axis. In some embodiments, R 1  and R 2  may be radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and the dome and skirt may be swept out circularly less than or equal to 180 degrees about the central axis. 
     In some embodiments, the skirt may further comprise a plurality of elongated lower ribs, wherein the plurality of elongated lower ribs define the plurality of second openings extending through the skirt. In some embodiments, each of the plurality of elongated lower ribs has a first end and a second end that is opposite the first end, wherein the first end is coupled with the lower portion of the dome and the second end is coupled with the outer edge of the skirt. In some embodiments, the plurality of elongated lower ribs extend generally along the first direction. In some embodiments, the plurality of elongated lower ribs are oriented generally radially with respect to the axis. 
     In some embodiments, the dome extends upward from the lower portion to a top portion of the dome in a second direction that is generally away from the skirt. In some embodiments, the second direction is parallel with the central axis. In some embodiments, the dome extends inward from the lower portion to the top portion of the dome in the second direction, wherein the second direction is also generally toward the central axis. In some embodiments, the second direction forms an acute angle B with a portion of the central axis that extends above the dome. In some embodiments, the acute angle B is less than or equal to five degrees. In some embodiments, the acute angle B is less than or equal to ten degrees. In some embodiments, the acute angle B is less than or equal to fifteen degrees. In some embodiments, the acute angle B is less than or equal to twenty degrees. In some embodiments, the acute angle B is less than or equal to twenty-five degrees. In some embodiments, the acute angle B is less than or equal to thirty degrees. 
     In some embodiments, the dome further comprises a plurality of elongated upper ribs, wherein the plurality of elongated upper ribs define the plurality of first openings extending through the sidewall. In some embodiments, each of the plurality of elongated upper ribs has a first end and a second end that is opposite the first end, wherein the first end is coupled with the lower portion of the dome and the second end is coupled with a top portion of the dome. In some embodiments, the plurality of elongated upper ribs extend generally along the second direction. In some embodiments, the second direction is parallel with the central axis. In some embodiments, the dome extends inward from the lower portion to the top portion of the dome in the second direction, wherein the second direction is also generally toward the central axis. 
     In some embodiments, the dome and skirt are swept out arcuately 360 degrees about the central axis and the cover is configured to couple with a mounting surface adjacent a drain of the mounting surface. In some embodiments, the mounting surface comprises a roof. In some embodiments, the dome and skirt are swept out arcuately less than 360 degrees about the central axis in respective sections defining first and second mating surfaces on first and second ends respectively of the swept out sections, the first and second mating surfaces shaped to complement an external structure adjacent the mounting surface. In some embodiments, the external mounting structure is a wall intersecting the mounting surface and having a drain therein configured to be covered by the cover. In some embodiments, the first mating surface forms a first contour that is substantially planar, and wherein the second mating surface forms a second contour that is substantially planar. In some embodiments, the first and second contours are substantially coplanar. In some embodiments, the first and second contours are substantially non coplanar. In some embodiments, the first mating surface forms a first contour that is substantially non planar. In some embodiments, the second mating surface forms a second contour that is substantially non planar. 
     In some embodiments, the cover further comprises an arcuate outer ring configured to couple with the outer edge of the skirt, and to at least partially cover the outer edge when coupled thereto. In some embodiments, the arcuate outer ring further comprises a plurality of openings extending through the arcuate outer ring and configured to allow fluid passage through the openings. In some embodiments, at least one of the plurality of openings of the arcuate outer ring is further configured to be in fluid communication with at least one of the plurality of lower spaces of the skirt when the arcuate outer ring is coupled with the skirt. In some embodiments, the arcuate outer ring is coupled with the outer edge of the skirt. 
     In some embodiments, the cover further comprises an arcuate mount configured to couple with the cover and with a mounting surface adjacent a drain. In some embodiments, the arcuate mount comprises an arcuate foundation having a top side and a bottom side opposite the top side, the top side configured to face the cover and having a catch configured to couple with at least one projecting insert of the cover, the bottom side configured to face the mounting surface. In some embodiments, the at least one projecting insert is on the outer ring such that the mount couples with the outer ring. In some embodiments, the at least one projecting insert is on the skirt such that the mount couples with the skirt. In some embodiments, the at least one projecting insert is on the outer edge of the skirt. In some embodiments, the catch of the arcuate mount is a nub and includes an opening therein, the opening configured to receive and releasably snap therein the projecting insert. In some embodiments, the catch is an arcuate outer lip extending along an outer perimeter of the arcuate foundation and configured to couple with the outer edge of the skirt. In some embodiments, the arcuate outer lip is further configured to couple with the outer edge of the skirt by expanding to receive the outer edge therein and then contracting to secure the outer edge therein. In some embodiments, the arcuate mount further comprises a plurality of arcuate tabs coupled with the arcuate foundation and extending inward toward the axis when coupled with the cover. In some embodiments, the plurality of arcuate tabs are interspersed in between adjacent segments of the foundation. In some embodiments, the plurality of arcuate tabs are interspersed in between adjacent segments of the foundation and having a gap therebetween to form a plurality of flex joints. In some embodiments, the plurality of arcuate tabs having openings therethrough configured to receive a fastener therein to secure the arcuate mount to the mounting surface. 
     In some embodiments, the skirt, the dome, the outer ring and the mount are swept out arcuately 360 degrees about the central axis. In some embodiments, R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein skirt, the dome, the outer ring and the mount are swept out circularly 360 degrees about the central axis. 
     In some embodiments, the skirt, the dome, the outer ring and the mount are swept out arcuately less than 360 degrees about the central axis. In some embodiments, R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the skirt, the dome, the outer ring and the mount are swept out circularly less than 360 degrees about the central axis. 
     In some embodiments, the dome and skirt are swept out arcuately less than or equal to 180 degrees about the central axis. In some embodiments, R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the skirt, the dome, the outer ring and the mount are swept out circularly less than or equal to 180 degrees about the central axis. 
     In some embodiments, the dome has a top portion defining a plurality of top spaces extending therethrough and configured to allow fluid to pass therethrough. In some embodiments, the dome further comprises a plurality of elongated upper ribs, and wherein each of the plurality of elongated upper ribs is coupled directly with one of the plurality of elongated lower ribs forming a continuous rib from the outer edge of the skirt to a top portion of the dome. In some embodiments, each of the plurality of lower spaces is in direct fluid communication with one of the plurality of upper spaces forming a continuous space. In some embodiments, the plurality of first openings of the dome are wider than the plurality of second openings of the skirt. 
     In some embodiments, each of the plurality of elongated lower ribs further comprises a first end having a first width, and a second end that is opposite the first end and having a second width, wherein the first end is connected to the lower portion of the dome and the second end is connected to the outer edge of the skirt. In some embodiments, the first width is approximately equal to the second width. In some embodiments, the first width is less than the second width. In some embodiments, each of the plurality of elongated lower ribs further comprises a first side extending from the first end to the second end and defining a first plane, and a second side that is opposite the first side, the second side extending from the first end to the second end and defining a second plane, wherein the first and second planes are not parallel to each other. In some embodiments, an acute angle between the first and second planes is less than or equal to fifteen degrees. In some embodiments, the acute angle between the planes is less than or equal to ten degrees. In some embodiments, the first width is greater than the second width. 
     In some embodiments, the dome further comprises a removable lid at a top portion of the dome. In some embodiments, the lid comprises a handle projecting therefrom and configured to be grasped by a user to remove the lid from the top. 
     In another aspect, a cover for a drain is disclosed comprising an arcuate lower portion defining a central vertical axis and comprising: an arcuate outer perimeter defining a horizontal plane substantially orthogonal to the central axis and having at least one insert coupled with and projecting away from the arcuate outer perimeter; a plurality of elongated lower ribs connected to the arcuate outer perimeter and extending toward the central vertical axis at an acute angle A with respect to the horizontal plane, wherein A is less than or equal to thirty degrees; and a plurality of lower spaces extending through the arcuate lower portion and configured to allow fluid flow therethrough; an arcuate outer ring coupled to the arcuate outer perimeter of the arcuate lower portion and to at least partially cover the arcuate outer perimeter when coupled thereto; an arcuate mount comprising: an arcuate foundation having a top side and a bottom side opposite the top side, the top side configured to face the arcuate lower portion and having a catch configured to couple with the at least one projecting insert of the arcuate outer perimeter of the arcuate lower portion, the bottom side configured to couple with an external mounting structure; an arcuate upper portion comprising: a plurality of elongated upper ribs each having a first end and a second end opposite the first end, the first end coupled with the plurality of elongated lower ribs of the arcuate lower portion, and extending away from the arcuate lower portion at an angle B with respect to a portion of the central vertical axis that extends above the dome; and a plurality of upper spaces in between and defined at least partially by the plurality of elongated upper ribs; and a top coupled with the second ends of the plurality of elongated upper ribs of the arcuate upper portion. 
     In another aspect, a method of coupling a cover for a drain to a mounting surface is disclosed. In some embodiments, the method comprises coupling the cover to the mounting surface such that the cover at least partially surrounds the drain, wherein the drain has a half-width of R 1 , wherein the cover includes an arcuate dome defining a central axis and an arcuate skirt coupled with the dome and having an outer edge, wherein the skirt flares outward and downward from the dome to the outer edge in a first direction that is generally away from the central axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the central axis that extends below the skirt, wherein the skirt forms a plurality of openings extending through the skirt, and wherein the outer edge of the skirt is located a perpendicular distance R 2  from the axis, and wherein R 2  is at least twice R 1 . 
     In another aspect, a cover for a drain is disclosed that comprises a dome having a sidewall with a lower portion, wherein the sidewall defines a central axis and forms a plurality of first openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis; and a skirt coupled with the lower portion of the sidewall and having an outer edge, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the central axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the central axis that extends below the skirt, wherein the skirt forms a plurality of second openings extending through the skirt, and wherein at least part of the outer edge of the skirt is located a perpendicular distance R 2  from the central axis, and wherein R 2  is at least twice R 1 . 
     In some embodiments, the lower portion is located a minimum perpendicular distance R 1  from the central axis, and wherein the outer edge of the skirt is located a minimum perpendicular distance R 2  from the central axis. In some embodiments, the skirt has a generally square planform. 
     In another aspect, a cover for a drain is disclosed, where the drain has a drain body opening having a maximum width W, and the cover comprises a skirt having an outer edge, wherein the skirt forms a plurality of openings extending through the skirt, and wherein at least part of the outer edge of the skirt is located a perpendicular distance R 2  from a geometric center axis defined by the outer edge, and wherein R 2  is greater than or equal to W. In some embodiments, R 2 ≥1.5×W. In some embodiments, R 2 ≥2×W. In some embodiments, R 2 ≥3×W. In some embodiments, R 2 ≥4×W. In some embodiments, R 2 ≥5×W. 
     In some embodiments, the cover may further comprise a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . In some embodiments, W is less than or equal to 1 inch. In some embodiments, W is less than or equal to 1.5 inches. In some embodiments, W is less than or equal to 2 inches. In some embodiments, W is less than or equal to 3 inches. In some embodiments, W is less than or equal to 4 inches. In some embodiments, W is less than or equal to 5 inches. In some embodiments, W is less than or equal to 6 inches. In some embodiments, R 2  is greater than or equal to W. In some embodiments, R 2 ≥1.5×W In some embodiments, R 2 ≥2×W. In some embodiments, R 2 ≥3×W. In some embodiments, R 2 ≥4×W. In some embodiments, R 2 ≥5×W. In some embodiments, the cover may further comprise a mount configured to couple with the cover and with a mounting surface adjacent the drain. 
     In another aspect, a mount for coupling a drain cover with a mounting surface adjacent a drain is disclosed. The mount is configured to couple with the cover and with the mounting surface adjacent the drain. In some embodiments, the drain has a drain body opening having a maximum width W, wherein the mount has a width R 3 , and wherein R 3  is at least twice W. 
     In some embodiments of the mount, R 3 ≥3×W. In some embodiments, R 3 ≥4×W. In some embodiments, R 3 ≥5×W. In some embodiments, the mount further comprises a foundation having a top side and a bottom side opposite the top side, the top side configured to face the cover and having a protrusion configured to be received through a flexible opening of the cover, the bottom side configured to face the mounting surface. In some embodiments, the protrusion at least partially extends through the flexible opening when the mount is coupled with the cover. In some embodiments, the protrusion comprises an extended section coupled with a ball catch on the end of the extended section. In some embodiments, the extended section at least partially extends through the flexible opening when the mount is coupled with the cover, and wherein the ball catch is adjacent the top side of the foundation when the mount is coupled with the cover. In some embodiments, the foundation is arcuate. In some embodiments, the drain has a drain body opening having a maximum width W, the mount has a width R 3 , and R 3  is at least twice W. In some embodiments, R 3 ≥3×W. In some embodiments, R 3 ≥4×W. In some embodiments, R 3 ≥5×W. In some embodiments, mount further comprises a plurality of inwardly extending tabs coupled with the foundation. In some embodiments, the plurality of tabs are interspersed in between adjacent segments of the foundation. In some embodiments, the plurality of tabs are interspersed in between adjacent segments of the foundation and having a gap therebetween to form a plurality of flex joints. In some embodiments, the plurality of tabs having openings therethrough configured to receive a fastener therein to secure the mount to the mounting surface. In some embodiments, the plurality of tabs are arcuate. In some embodiments, the mount is configured to adhere to the mounting surface. In some embodiments, the mount is configured to fasten to the mounting surface. 
     In another aspect, a pipe stem for connecting a drain cover with a drain body is disclosed. The pipe stem comprises a sidewall defining a channel therethrough and having a first end and a bottom end; a plurality of openings formed in the sidewall configured to allow fluid to pass therethrough and into the channel, wherein the first end is configured to couple with the drain cover, and wherein the second end is configured to couple with the drain body. 
     In some embodiments of the pipe stem, the second end is configured to snap fit to the drain body. In some embodiments, the second end is configured to snap fit to the drain body. In some embodiments, the second end comprises threads and is configured to screw onto the drain body. In some embodiments, the pipe stem further comprises a clip configured to couple the second end of the pipe stem to the drain body. In some embodiments, the plurality of openings extend longitudinally between the first and second ends. In some embodiments, the sidewall is arcuate. In some embodiments, the sidewall is circular. In some embodiments, the sidewall is metallic. In some embodiments, the sidewall is plastic. In some embodiments, the sidewall is a polymer. In some embodiments, the sidewall is circular. 
     In some embodiments the cover includes a skirt comprising a plurality of levels including at least a top level and a bottom level located generally lower than the top level, and wherein adjacent levels are coupled to each other by a connecting sidewall having a plurality of openings therethough. 
     In some embodiments of the cover having a plurality of levels, the bottom level comprises the outer edge. In some embodiments, the cover further comprises at least one intermediate level located in between the top and bottom levels, wherein a first connecting sidewall couples the bottom level with the intermediate level, and wherein a second connecting sidewall couples the intermediate level with the top level. In some embodiments, the cover further comprises at least a first and second intermediate level located in between the top and bottom levels, wherein a first connecting sidewall couples the bottom level with the first intermediate level, wherein a second connecting sidewall couples the first intermediate level with the second intermediate level, and wherein a third connecting sidewall couples the second intermediate level with the top level. In some embodiments, R 2 ≥3×W. In some embodiments, R 2 ≥4×W. In some embodiments, R 2 ≥5×W. In some embodiments, the cover further comprises a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the top level of the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, 
     In some embodiments of the cover having a plurality of levels, each level of the skirt flares outward and downward in generally parallel directions, each direction being generally away from the axis and generally away from the dome, wherein each direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . In some embodiments W is less than or equal to 1 inch. In some embodiments W is less than or equal to 1.5 inches. In some embodiments W is less than or equal to 2 inches. In some embodiments W is less than or equal to 3 inches. In some embodiments W is less than or equal to 4 inches. In some embodiments W is less than or equal to 5 inches. In some embodiments W is less than or equal to 6 inches. In some embodiments is less than or equal to 1 inches. 
     In another aspect, a cover for a drain is disclosed. The cover comprises a skirt and a dome configured to couple with the skirt. The skirt having a flat portion including a plurality of openings extending therethrough, the flat portion forming a plurality of grooves extending in a first direction and having an outer slot surrounding the flat portion on one or more sides of an outer region of the flat portion; and an angled portion including a plurality of openings extending therethrough, the angled portion coupled with the outer region of the flat portion and having an outer edge, wherein the angled portion flares outward and downward from the flat portion to the outer edge. The dome comprises a first dome portion and a second dome portion, wherein each dome portion comprises a sidewall with a lower portion, wherein each sidewall forms a plurality of openings extending through the sidewall, and wherein the first dome portion is configured to move relative to the second dome portion to position the dome on the skirt, and wherein the grooves and outer slot of the skirt are each configured to receive at least part of the lower portions of the first and second dome portions, such that the first and second dome portions can slide in the first direction. 
     In some embodiments, the grooves and outer slot of the skirt are each configured to receive at least part of the lower portions of the first and second dome portions, such that the first and second dome portions can slide in a second direction that is perpendicular to the first direction. In some embodiments, each sidewall of the first and second dome portions includes complementary fingers extending towards each other and configured to slide past each other when the first and second dome portions are positioned on the skirt. In some embodiments, the skirt has a generally rectangular planform. In some embodiments, the outer edge of the skirt is generally rectangular. In some embodiments, the flat portion of the skirt is generally rectangular. In some embodiments, the skirt defines a geometric center axis that is perpendicular to the flat portion of the skirt, wherein at least part of the angled portion of the skirt flares outward and downward from the outer region of the flat portion to the outer edge in a first direction that is generally away from the axis and generally away from the flat portion, and wherein the first direction forms an acute angle A with a portion of the axis that extends below the flat portion. In some embodiments, the angled portion includes a first, second and third angled sub-portion, wherein the first angled sub-portion is oriented angularly 90 degrees with respect to the second angled sub-portion, and wherein the second angled sub-portion is oriented angularly 90 degrees with respect to the third angled sub-portion. In some embodiments, the drain is a scupper having an opening with a maximum width W, wherein the grooves and outer slot of the skirt are each configured to receive at least part of the lower portions of the first and second dome portions, wherein the first and second dome portions can slide in a second direction that is perpendicular to the first direction. In some embodiments, the first and second dome portions can slide in a second direction that is perpendicular to the first direction so that a maximum distance between outermost parts of the first and second dome portions is less than or equal to W. In some embodiments, the first and second dome portions can slide in a second direction that is perpendicular to the first direction so that a maximum distance between outermost parts of the first and second dome portions is greater than W. 
     In one aspect, a cover for a drain is described. The cover comprises a dome and a skirt. The dome extends vertically from a lower portion to an upper edge to form a sidewall having a rectangular shape and configured to abut a vertical scupper drain opening. The dome has a plurality of first elongated openings extending through the dome. The skirt is coupled with the lower portion of the dome and has an outer edge. The skirt is configured to be located horizontally next to the vertical scupper drain opening. At least a portion of the skirt flares outward from the dome toward the outer edge in a first direction that forms an acute angle A with a portion of a vertical axis that extends below the skirt, where the skirt forms a plurality of second elongated openings extending through the skirt. 
     Various embodiments of the various aspects may be implemented. The angle A may be greater than or equal to eighty degrees, greater than or equal to seventy-five degrees, or greater than or equal to seventy degrees. The skirt may be swept out arcuately about the central axis. The skirt may have a U-shaped planform. The outer edge of the skirt may define a series of openings therethrough located between lower surfaces of the skirt. The skirt may comprise a center region having a curvature. The skirt may have a forward region and two opposite lateral regions, the forward region and two opposite lateral regions each extending linearly downward and away from the center region. The forward region may comprise the portion of the skirt that flares outward from the dome toward the outer edge in the first direction that forms the acute angle A. The two opposite lateral regions may each comprise the portion of the skirt that flares outward from the dome toward the outer edge in the first direction that forms the acute angle A. The cover may have an overall width extending from opposite lateral regions at a rear edge of the skirt, and where the dome extends laterally along the rear edge. The dome may extend laterally less than the overall width of the cover. The cover may have an overall height from 4-8 inches, an overall width from 12-20 inches, and/or an overall length from 8-12 inches. The overall height may be about 6.25 inches, the overall width may be about 16 inches, and/or the overall length may be about 10 inches. The first elongated openings may extend vertically along the dome. The second elongated openings may extend laterally and forward along the skirt. The skirt may comprise a center region having a flat portion and curved portions surrounding the flat portion. The cover may have an overall height H as measured axially from a lower surface of the skirt to an upper edge of the dome, where the outer edge has a portion located a perpendicular distance R 2  from the vertical axis, and wherein the distance R 2  is greater than H. The distance R 2  may be at least 1.5 times greater than H. 
     This summary is meant to provide an introduction to the concepts that are disclosed within the specification without being an exhaustive list of the many teachings and variations upon those teachings that are provided in the extended discussion within this disclosure. Thus, the contents of this summary should not be used to limit the scope of the claims that follow. All of these embodiments are intended to be within the scope of the present disclosure. These and other embodiments will become readily apparent to those skilled in the art from the following detailed description of the preferred embodiments having reference to the attached figures, the invention not being limited to any particular preferred embodiment(s) disclosed or summary provided herein. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Elements in the figures have not necessarily been drawn to scale in order to enhance their clarity and improve understanding of these various elements and embodiments described herein. Furthermore, elements that are known to be common and well understood to those in the industry are not depicted in order to provide a clear view of the various embodiments described herein, thus the drawings are generalized in form in the interest of clarity and conciseness. 
         FIG.  1 A  is a perspective view of an embodiment of a cover for a drain including embodiments of a dome, a skirt, an outer ring and a mount. 
         FIG.  1 B  is a side view of the cover of  FIG.  1 A . 
         FIG.  1 C  is a top view of the cover of  FIG.  1 A . 
         FIG.  1 D  is a section view of the cover of  FIG.  1 C  as taken along the line  1 D- 1 D as indicated in  FIG.  1 C . 
         FIG.  1 E  is a detail view of the region  1 E as indicated in  FIG.  1 D  showing a cross-section of the interface of the cover including the skirt, the outer ring and the mount. 
         FIGS.  1 F- 1 G  are various views of an embodiment of the body of the cover of  FIG.  1 A  coupled with the mount where the outer ring has been removed. 
         FIG.  1 H  is a perspective view of the body of the cover of  FIG.  1 A . 
         FIG.  1 I  is a side view of the body of the cover of  FIG.  1 A . 
         FIG.  1 J  is a side view of an embodiment of the cover of  FIG.  1 A  having a horizontal skirt. 
         FIG.  1 K  is a side view of an embodiment of the cover of  FIG.  1 A  having an inwardly or negatively sloped skirt. 
         FIG.  2    is a top view of an embodiment of a mount that may be used with the cover of  FIG.  1 A . 
         FIG.  3 A  is a perspective view of another embodiment of a cover for a roof drain. 
         FIG.  3 B  is a side view of the cover of  FIG.  3 A . 
         FIG.  4    is a perspective view of another embodiment of a cover for a roof drain that is contoured to fit with a protruding structure. 
         FIGS.  5 - 6    are perspective views of other embodiments of covers for a roof drain shown installed adjacent to a protruding structure. 
         FIG.  7 A  is a partial perspective view of an embodiment of a cover for a roof drain including a lower portion, an outer ring and a mount. 
         FIG.  7 B  is a partial exploded view of the lower portion and mount of  FIG.  7 A . 
         FIG.  7 C  is a partial detail perspective view of the mount of  FIG.  7 A . 
         FIG.  7 D  is a partial detail perspective view of an interior of the outer ring of  FIG.  7 A . 
         FIG.  7 E  is a top view of the mount of  FIG.  7 A . 
         FIG.  8 A  is a perspective view of an embodiment of a cover with an adjustment mechanism. 
         FIG.  8 B  is an exploded view of a part of the adjustment mechanism of the cover of  FIG.  8 A . 
         FIG.  9 A  is a front cross-section view of an embodiment of a pipe stem that connects a cover with a drain body. 
         FIG.  9 B  is a perspective view of the pipe stem of  FIG.  9 A . 
         FIG.  10    is a perspective view of another embodiment of a cover for a drain including an embodiment of a skirt with multiple levels. 
         FIG.  11 A  is a partial side view of an embodiment of a cover with a flexible housing coupled with a mount with a ball catch protrusion. 
         FIG.  11 B  is a partial exploded view of the lower portion and the mount of  FIG.  11 A . 
         FIG.  12 A  is a front perspective view of an embodiment of an adjustable cover for a drain including embodiments of a skirt and moveable first and second dome portions. 
         FIG.  12 B  is a rear perspective view of the skirt of  FIG.  12 A . 
         FIG.  12 C  is a perspective view of the first and second dome portions of  FIG.  12 A . 
         FIG.  12 D  is a rear perspective view of an embodiment of the skirt of  12 A. 
         FIG.  12 E  is a side view of the skirt of  12 D. 
         FIG.  12 F  is a top view of the skirt of  12 D. 
         FIG.  12 G  is a front view of the skirt of  FIG.  12 D , with a rear portion of the skirt removed for clarity. 
         FIG.  12 H  is a front perspective view of another embodiment of an adjustable cover for a drain including embodiments of a skirt, a mount, and moveable first and second dome portions. 
         FIG.  12 I  is a front perspective view of the cover of  FIG.  12 H  with the dome in a contracted configuration. 
         FIG.  12 J  is a front perspective view of the cover of  FIG.  12 H  installed next to a scupper drain with the dome in an extended configuration. 
         FIGS.  12 K and  12 L  are top and bottom perspective views, respectively, of the mount of  FIG.  12 H . 
         FIG.  12 M  is a perspective view of the skirt of  FIG.  12 H . 
         FIG.  12 N  is a perspective view of the first dome portion of  FIG.  12 H . 
         FIGS.  12 O and  12 P  are top and bottom perspective views, respectively, of the second dome portion of  FIG.  12 H . 
         FIGS.  12 Q- 12 R  are side views of an embodiment of a horizontal skirt that may be used with the adjustable cover of  FIG.  12 A . 
         FIG.  12 S  is a side view of an embodiment of an inwardly or negatively sloped skirt that may be used with the adjustable cover of  FIG.  12 A . 
         FIGS.  13 A- 13 E  are various views of another embodiment of a drain cover that may be used with scupper drain openings or other type drains. 
     
    
    
     DETAILED DESCRIPTION 
     In the following discussion that addresses a number of embodiments and applications, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration specific embodiments in which the embodiments described herein may be practiced. It is to be understood that other embodiments may be utilized and changes may be made without departing from the scope of the disclosure. 
     Various inventive features are described below that can each be used independently of one another or in combination with another feature or features. However, any single inventive feature may not address all of the problems discussed above or only address one of the problems discussed above. Further, one or more of the problems discussed above may not be fully addressed by the features of each embodiment described below. 
     In certain embodiments, the cover disclosed herein prevents or reduces the blockage of fluid from entering a drain caused by the buildup of leaves and other debris. Therefore, even with buildup of debris along or on the outside of the cover, the cover still allows for the passage of fluid through the cover and into the drain. For instance, debris may collect on top of the cover and the cover may still allow for the drainage of fluid even with such debris on the cover. Further, the features of the cover mitigate the chances of such buildup in the first place. The cover can be used with new drains or retro-fitted for existing drains. 
     The cover can have a top portion configured to be positioned generally over the drain, a middle portion that may be slightly angled off the vertical and extending outward from the top portion, and a lower flange or portion that is generally horizontal but slightly sloped downward and extending outward from the middle portion. This lower portion may have a large area over which fluid and debris can flow, in order to reduce the chances of debris buildup and to optimize the flow of fluid through spaces or openings in the lower portion. The middle and lower portions may have radially-elongated spaces defined by ribs. Theses spaces may extend through the middle and lower portions and thereby allow fluids to flow through these two portions. The top portion may have spaces as well. The cover can also have an outer ring that attaches to the outer perimeter of the lower portion. 
     Further, the cover may have a mount configured to attach to a surface or surfaces other than the drain itself. The mount may be installed around the drain, and the cover may be easily attached to the mount. The mount may have flex joints that allow for the mount to conform to elevations or other protuberances on the mounting structure or surface to which the mount attaches. The cover may attach to the mount by friction fit, for instance by snapping projections of the cover into corresponding receiving structures of the mount. This configuration of the various portions of the drain cover, along with other features of the drain cover disclosed herein, produces a cover with improved performance characteristics, including allowing fluids to flow through the cover and into the drain even in the presence of buildup of solids or other foreign debris along and/or on the outside of the cover while also reducing the amount of debris buildup around the drain and cover. In certain embodiments, the cover can be coupled to a mount that is coupled to the drain. The cover may attach to the mount by friction fit, for instance by snapping projections of the cover into corresponding receiving structures of the mount. 
       FIG.  1 A  is a perspective view of an embodiment of a cover  100  for a drain, such as a roof drain. The cover  100  may be used with many other types of drains as well. For example, the cover  100  may be used with other outdoor drains, indoor drains, street drains, street grating, etc. Thus, the cover  100  is not limited to use with any one type of drain. The cover  100  has features that allow for the flow of fluid through the cover and into the drain even with buildup of debris on or around the cover  100 , as described in detail herein. 
     As shown in  FIG.  1 A , the cover  100  may have a body  110 . The body  110  may be formed from a variety of suitable materials. In some embodiments, the body  110  may be formed from plastic, polymers, metals, other materials, and/or combinations thereof. The various features or parts of the body  110  may be formed from the same, monolithic piece of material. For example, the entire body  110  may be formed by molding a material into the various shapes of the cover  100 . In some embodiments, the body  110  may be formed by injection molding various features of the cover  100 . However, the various features or parts of the body  110  may be formed as separate parts that are attached or otherwise connected together. For example, portions of the body  110  may be formed separately from other portions which are then joined together in a variety of suitable means, for example by adhering, bonding, mechanically connecting such as with fasteners or brackets, welding, or other suitable mechanism or method. 
     The body  110  may include one or more sections coupled together, such as an upper dome section or dome  126  coupled with a lower skirt section or a skirt  120 . As shown, the body  110  may include the skirt  120 . The skirt  120  may be a relatively lower part or parts of the cover  100 . By “lower” it is understood that this description is relative to the orientation shown in  FIG.  1 A  of the cover  100 . The cover  100  may be installed in the orientation as shown with a drain located underneath the cover  100  as oriented in the figure. Therefore, the designations “lower,” “upper,” and the like may refer to locations that are relative to a particular orientation and are merely used for convenience to describe the various features. 
     The skirt  120  may comprise a part or parts that are oriented generally in the manner of a flange or other arcuate configuration. By “arcuate” it is meant that a feature may be rounded in a variety of ways, roughly similar to an arc. Therefore, the term “arcuate” may refer to a circular shape. However, arcuate may also refer to other rounded shapes, such as elliptical, circumferential, annular, other forms of rounded, or combinations thereof. Arcuate does not impose any requirements on the shape of the edges of the arcuate part. Thus, arcuate may also refer to a rounded shape having straight ends or edges, such as a 2D cross-section extruded about an axis to forma 3D part, but where the resulting 3D part has straight outer edges such that the planform (i.e. view from top of bottom of the part) of the 3D part appears to be square- or rectangular-shaped. Therefore, the term arcuate is not meant to be limiting the configuration of the various parts to any one particular shape. 
     Various features of the cover  100  may be described with reference to the central axis  10 , as shown. The axis  10  may be a geometric reference line that is not a physical feature of the cover  100 . In some embodiments, the axis  10  may be defined by one or more parts of the cover  100 . In some embodiments, various features of the cover  100  may be circular with the axis  10  intersecting the center or near the center of the various circular portions. However, the various features of the cover  100  need not be circular but may still be referred with reference to the axis  10 . The axis  10  may be vertically-oriented as shown. 
     The skirt  120  may be coupled with a lower portion  121  of the upper dome  126 . The lower portion  121  may be a generally arcuate section of the cover  100  that extends in a swept out path about the axis  10 . The lower portion  121  may provide an interface or juncture with which various portions of the cover  100  may connect. In some embodiments, the lower portion  121  may merely be the end of various intersecting or interconnecting portions of the cover  100 . The lower portion  121  may have a variety of different shapes of cross-sections that are extruded in a generally arcuate manner about the axis  10 . Theses shapes may be square, rectangular, circular, rounded, polygonal, other shapes, or combinations thereof. 
     The lower portion  121  may be located approximately a perpendicular distance R 1  from the axis  10 . R 1  may be a dimension equal to roughly half of the total width of the lower portion  121 . The distance R 1  may be a radius of a circular lower portion  121 . However, the lower portion  121  may not be circular, and thus in some embodiments the distance R 1  may not be a radius. R 1  may be measured perpendicularly from the axis  10  to any region of the lower portion  121 , including to regions of the lower portion  121  that are relatively closer are farther from the axis  10  than other regions of the lower portion  121 . Further, R 1  need not be constant as measured at different angular locations of the cover  100 . For example, the lower portion  121  may be arcuate but with straight outer edges such that the dome  126  appears square or rectangular as viewed from the top. For such a shape, R 1  would vary depending on which angular location the dimension is measured (i.e. which cross-section or side view is used). Thus, R 1  may vary with such a configuration as measured at different angular locations. In some embodiments, R 1  refers to a maximum or minimum width of the dome  126 . For a non-circular dome  126 , R 1  may be a maximum or minimum width, for example the maximum or minimum perpendicular distance from the axis  10  to respectively a closest portion or farthest-most portion of the dome  126 . 
     The skirt  120  may flare outward and downward from the lower portion  121  to an outer edge  129  (see  FIG.  1 E ) and/or outer perimeter  125  in a first direction that is generally away from the central axis  10  and generally away from the dome  126  (see  FIGS.  1 B,  1 D and  1 I , for example). 
     The skirt  120  may include one or more lower ribs  122 . The lower ribs  122  may be connected to our otherwise coupled with the lower portion  121 . The lower ribs  122  may be elongated members coupled with the lower portion  121  and extending outward therefrom. The lower ribs  122  may couple with the lower portion  121  and extend radially outward therefrom. There may be multiple lower ribs  122 . There may be 48 lower ribs  122  (only some are visible in  FIG.  1 A ; see  FIG.  1 C ). In some embodiments, there may be fewer or more lower ribs  122 . For example, there may be ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hundred, one hundred fifty, two hundred, five hundred, or other intermediate, lower or greater amounts of lower ribs  122 . These are merely some examples and are not meant to be self-limiting. The lower ribs  122  may have a generally U-shaped cross-section. In some embodiments, the lower ribs  122  may have other shaped cross-sections, such as C-section, shallow U- or C-section, rectangular, square, rounded shapes such as circular, elliptical, arcuate, or other shapes, polygonal shapes, segmented shapes, hollow cross-section, solid cross-section, partially hollow and partially solid cross-section, and/or combinations thereof. 
     The lower ribs  122  may extend from the lower portion  121  to an outer perimeter  125 . The outer perimeter  125  may be a portion or portions of the cover body  110 , such as the skirt  120 , extending along the outside of the cover body  110 . The outer perimeter  125  is visible in  FIG.  1 A  through openings in an outer flow ring  150 , though it may also include regions of the skirt  120  on the inside of the outer ring  150  as oriented. The outer perimeter  125  may include the outer edge  129  (see  FIG.  1 H , for example). The outer perimeter  125  may also include portions of the lower ribs  122 . The outer perimeter  125  may have a variety of cross-sectional shapes, including any of those described with respect to the lower portion  121 . The outer perimeter  125  may be integral with the various lower ribs  122  to which it is connected. In some embodiments, the lower portion  121 , the one or more lower ribs  122 , and the outer perimeter  125  may all be made from the same monolithic piece of material. In some embodiments, the lower portion  122  includes the one or more lower ribs  122  connected to or otherwise coupled with the lower portion  121  and the outer perimeter  125 . The outer perimeter  125  may provide an edge or other end boundary of the skirt  120 . Various other features or parts of the cover  100  may be connected to or otherwise coupled with the outer perimeter  125  or other portions of the skirt  120 . In some embodiments, an outer flow ring  150  and/or a mount  160  may be coupled with the outer perimeter  125 , as described in further detail herein. 
     The cover  100  may include one or more openings or lower spaces  124 . The body  110  may include the one or more lower spaces  124 . As shown, the skirt  120  may at least partially define or form the one or more lower spaces  124 . The lower spaces  124  may be openings extending through various portions of the cover  100  to allow fluid flow therethrough. As shown, the lower spaces  124  may be openings extending through the skirt  120  to allow fluid flow through the skirt  120 . The lower spaces  124  may be defined by various portions of the cover  100 . As shown, the lower spaces  124  may be defined by features of the skirt  120 , such as the lower ribs  122 , the lower portion  121 , and/or the outer perimeter  125 . For example, the lower spaces  124  may be defined on two sides by two adjacent lower ribs  122 , on one end buy a portion of the lower portion  121 , and on the opposite end by a portion of the outer perimeter  125 . In this manner, the lower spaces  124  may be openings defined or otherwise formed by various physical features of the skirt  120 . The lower spaces  124  may be completely open as shown. In some embodiments, the lower spaces  124  may have other features therein, such as screens, filters, or other features that may affect the flow of fluid therethrough. For instance, screens in the lower spaces  124  may facilitate allowing the passage of fluid flow while blocking the passage of larger or solid debris, such as leaves and sticks. 
     The dome  129  may include an arcuate sidewall  130 . The sidewall  130  may be located generally above the skirt  120  as oriented in  FIG.  1 A . The sidewall  130  may provide features or functionalities that assist with allowing the flow of fluid through the cover  100  while blocking or preventing the passage of solids or other debris therethrough. The sidewall  130  may extend along an arcuate path and thereby define a central vertical axis  10 . The sidewall  130  may extend along a circular path. In some embodiments, the sidewall  130  may extend along other arcuate paths that are non-circular and still define the axis  10 . The axis  10  may be a geometric center of the arcuate path swept out by the sidewall  130  or by portions thereof, such as by the lower portion  121 . Thus, the axis  10  may still be defined by the sidewall  130  even with an arcuate sidewall  130  that is non-circular. The sidewall  130  may define a plurality of openings or upper spaces  134  extending through the sidewall  130  configured to allow fluid flow therethrough. The upper spaces  134  may be generally rectangular in shape, or other shapes, such as square, polygonal, rounded shapes, segmented, or combinations thereof. 
     The sidewall  130  may include one or more upper ribs  132 . As shown, the upper ribs  132  may be elongated members extending along the sidewall  130 . The upper ribs  132  may be elongated with a generally rectangular or square cross-section. However, the upper ribs  132  may have a variety of other shaped cross-sections, such as those described with respect to the lower ribs  122 , or other shapes. The upper ribs  132  may be oriented in an arcuate manner generally about the central vertical axis  10 . In some embodiments, the upper ribs  132  are arranged in a circular shape about the axis  10 . However, other arrangements of the upper ribs  132 , such as elliptical, oval, or other shapes, may be implemented. 
     The sidewall  130  may be include a lower portion  121 . In some embodiments, the sidewall  130  may be formed from the same monolithic piece of material as the lower portion  121 . In some embodiments, the sidewall  130  and the skirt  120  are formed from the same monolithic piece of material. However, the sidewall  130  may also be coupled with the lower portion  121  and/or the skirt  120  in a variety of ways, such as with mechanical attachments, adhering, fastening, bonding, or other suitable means. 
     The sidewall  130  may include any number of the upper ribs  132 . There may be fourteen of the upper ribs  132  (only some are visible in  FIG.  1 A ; see  FIG.  1 C ). In some embodiments, there may be more or fewer upper ribs  132 . For example, there may be 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, or any other number of intermediate or greater number of upper ribs  132 . 
     The upper ribs  132  may be connected on one end to the lower portion  121  and on the opposite end to various other features of the cover  100 . As shown, one end of the upper ribs  132  may be connected or otherwise coupled with an upper perimeter  133 . The upper perimeter  133  may be a portion or segment of the sidewall  130  that extends in an arcuate manner about the central axis  10 . The upper ribs  132  may be coupled with the upper perimeter  133  in a variety of manners. As shown, the upper perimeter  133  and the upper ribs  132  may be formed from the same monolithic piece of material. In some embodiments, the upper perimeter  133  may be a separate part that is subsequently attached to or otherwise coupled with the upper ribs  132  in a variety of suitable means, such as bonding, fastening, adhering, other mechanical means, other suitable means, or combinations thereof. 
     As mentioned, the cover  100  may include one or more upper spaces  134 . that provide openings through the cover  100  through which fluid may flow. As shown, the upper spaces  134  may be formed by various features of the body  110 . The upper spaces  134  may be formed by various features of the sidewall  130 . For instance, as shown the upper ribs  132  may partially form the upper spaces  134  on two or more sides of the upper spaces  134 . The upper spaces  134  may also be defined on one or more sides by the upper perimeter  133 . As shown, the upper perimeter  133  or a portion thereof may form an upper side of the upper spaces  134  as oriented, and/or the opposite side of the upper spaces  134  may be defined by a portion of the lower portion  121 . Therefore, the upper spaces  134  may be defined by various surfaces of adjacent upper ribs  132 , adjacent portions of the upper perimeter  133 , and adjacent portions of the lower portion  121 . As shown, the upper spaces  134  may have a generally rectangular shape. The upper spaces  134  may therefore have the appearance of a window. However, the upper spaces  134  may have a variety of shapes, such as square, rounded, segmented, other shapes, and/or combinations thereof. In some embodiments, the upper space is  134  may have the same or similar shapes as the lower spaces  124 . Further, the upper spaces  134  may be entirely open with no physical objects therein. However, the upper spaces  134  may also be partially or entirely filled with a screen, filter, or the like to allow the flow of fluid therethrough while blocking the passage of debris such as solids. The upper spaces  134  may contribute to the effectiveness of the cover  100  by receiving fluid that might flow over the skirt  120  and/or over any debris or other blockages built up on the skirt  120 . The upper spaces  134  may also be sized to receive some of the debris such the debris will either catch on the upper space  134  and not fall onto the drain or block the skirt  120 , or the debris may fall through the upper space  134  and be received into the cavity  112  of the cover  100 . 
     The cover  100  may include a cavity  112 . The cavity  112  may be a space or spaces formed by various features of the cover  100 . As shown, the body  110  may form the cavity  112  therein. For instance, the sidewall  130  may surround and define or form the cavity  112  therein. The cavity  112  may also be formed and or defined by other features of the cover  100 . For example, the skirt  120  may also define a portion or portions of the cavity  112 . In some embodiments, the cavity  112  may be a space with a volumetric shape that complements the underside of the body  110  of the cover  100 . The cavity  112  may be a space defined or formed by the body  110  or other features of the cover  100  that facilitates the flow of fluid therethrough. For example, the cavity  112  may be a space in between various features of the cover  100  and the drain over which the cover  100  is positioned. The cavity  112  may be in fluid communication with the various spaces of the cover, such as the lower spaces  124  of the skirt  120  and/or the upper spaces  134  of the sidewall  130 . Fluid may flow through these or other spaces and into the cavity  112  and then into the drain. 
     The dome  126  may include a top  140 . The top  140  may be an uppermost portion or portions of the dome  126  as oriented in  FIG.  1 A . The top  140  may provide an uppermost structure to the cover  100 . As shown, the top  140  may be a portion or portions of the body  110 . The top  140  and the various features thereof may be formed from the same or similar materials as the other portions of the cover  100 . For example, the top  140  may be formed from the same materials as the sidewall  130  and/or the skirt  120 . In some embodiments, the top  140  is formed from the same monolithic piece of material as the sidewall  130  and/or as the skirt  120 . As shown, the top  140  may include portions that are formed from the same monolithic piece of material as the sidewall  130  and the skirt  120 , and the top  140  may include other portions that are separate therefrom. Therefore, a variety of configurations of the top  140  may be implemented. 
     The top  140  may also include the upper perimeter  133  or portions thereof. Therefore, the upper perimeter  133  may form a portion of the sidewall  130  as well as a portion of the top  140 . Thus, the top  140  may have a generally arcuate shape such as those described above with respect to the sidewall  130  and the upper perimeter  133 . In some embodiments, the upper perimeter  133  may extend entirely across the top  140  such that the top  140  forms a surface, which may be curved, flat or other shapes. As shown and described below, the top  140  may have other features and or separable components. 
     As shown, the top  140  may include a lid  141 . The lid  141  may be a portion or portions of the top  140 . The lid  141  may be generally centrally-located or it may be in other locations of the top  140 . As shown, the lid  141  may have a generally arcuate shape, such as circular or other shape, that is complementary to the arcuate shape of the upper perimeter  133 . The lid  141  may be removable. Removal of the lid  141  or other features from the cover  100  may facilitate with observing and/or accessing the cavity  112  and/or the drain thereunder. For instance, a user may remove the lid  141  in order to observe the drain and/or internal features of the cover  100 . Also the ability to remove the lid  141  allows an anti-vortex plate or other devices to be installed. In some embodiments, the lid  141  may be a generally circular part of the upper portion of the top  140  which is removable therefrom. For example, the lid  141  may interface with the upper perimeter  133  at a generally circular boundary. The lid  141  may also interface with the upper perimeter  133  or other portions of the cover  100  in a variety of other manners, including with other suitable shapes and configurations of this and/or other interfaces. 
     The cover  100  may include one or more top ribs  142 . The top ribs  142  may be generally elongated members located at or near the top  140 . The top ribs  142  may have a variety of cross-sectional shapes, such as rectangular, or any of those described herein, for example with respect to the upper ribs  132  and/or the lower ribs  122 . As shown, the top ribs  142  may be oriented generally parallel to each other. However, a variety of other arrangements may be implemented with the top ribs  142 . As further shown, the top ribs  142  may have a variety of lengths. Some of the top ribs  142  may be longer or shorter than other top ribs  142 . As shown, the top ribs  142  generally near the center of the top  140  may be longer than those top ribs  142  located generally farther from the center. As shown, there may be six top ribs  142 . In some embodiments, there may be more or fewer top ribs, for example, none, one, two, three, four, five, seven, eight, nine, ten, fifteen, twenty, twenty-five, fifty, one hundred, or intermediate or greater numbers of top ribs  142 . The top ribs  142  may be connected on one end to a first portion of the upper perimeter  133  and on the opposite end to an opposing portion of the upper perimeter  133 . As shown, the top ribs  142  may be connected on one end to one portion of the lid  141  and on the opposite end to an opposing portion of the lid  141 . 
     The cover  100  may include one or more top spaces  144 . The top spaces  144  may be openings through the top  140  of the cover  100  that allow the passage of fluid therethrough. The top spaces  144  may prevent the passage of large solids therethrough such as large pieces of debris, large sticks, and the like. The top spaces  144  may be large enough to allow some debris to pass therethrough in order to prevent a large buildup on the skirt  120 . As shown, the top spaces  144  may be formed by various features of the body  110 , such as the top  140 . For example, the top spaces  144  may be formed by one or more top ribs  142  and/or by one or more surfaces of the lid  141 . In some embodiments, the top spaces  144  may be formed by one or more top ribs  142  and various surfaces of the upper perimeter  133 . These are just some examples and the top spaces  144  may be defined in other ways, such as by combinations of the top ribs  142 , the lid  141 , and/or the upper perimeter  133 . In some embodiments, some or all of the top spaces  144  may be defined on two opposing sides by two adjacent top ribs  142 . In some embodiments, the ends of the top spaces  144  may be defined by two opposing sides or portions of the lid  141  or of the upper perimeter  133 . Some of the top spaces  144  may be defined on one side by the top rib  142  and on the opposite side by a portion of the lid  141 . In some embodiments, some of the top spaces  144  may be defined in part by a top rib  142  on one side and on the opposite side by a portion of the upper perimeter  133 . The top spaces  144  may be entirely open therethrough, as shown. In some embodiments, the top spaces  144  may include screens or filters therein to facilitate with allowing the passage of fluid therethrough while preventing or blocking the passage of solids and the like, similar to the upper spaces  134  and/or the lower spaces  124  described herein. 
     The cover  100  may include a handle  146 . As shown, the handle  146  may be a feature of the body  110 . For example, the handle  146  may be a feature of the top  140 . The handle  146  may provide a structure by which a user can pick up or otherwise handle the cover  100 . In some embodiments, the handle  146  may allow a user to remove the lid  141  from the cover  100 . For example, a user may grab the handle  146  to remove the lid  141  from the top  140 . The handle  146  may also be used to put the lid  141  or other portions of the cover  100  back onto the cover  100 . 
     The handle  146  may have a variety of shapes and sizes. As shown, the handle  146  may be an arc that extends away from the top  140 . The handle  146  may be an arcuate shape extending upward as oriented from one or more of the top ribs  142 . In some embodiments, the handle  146  may be a top rib  142  with a different contour than the other top ribs  142 . As shown, the handle  146  may be partially flat on the ends with a middle portion that extends upward and in a generally arcuate shape. However, the handle  146  may extend upward in a variety of shapes and contours, such as square, rectangular, segmented, other polygons, other shapes, or combinations thereof. Therefore, the configuration shown and described is merely one possible implementation and other suitable configurations may be implemented. 
     The cover  100  may include an outer ring  150 . The outer ring  150  may be a structure or structures configured to couple with the cover body  110  generally along the outer perimeter  125 . The outer ring  150  may be arcuate in shape. The outer ring  150  may be a separable part of the cover  100  which may be removed therefrom and reattached thereto. The outer ring  150  may be arcuate when attached to the cover and either arcuate or other shapes, such as straight, when removed from the cover  100 . When coupled with the cover  100 , the outer ring  150  may be located a perpendicular distance R 2  from the axis  10 . When coupled with the cover  100 , the outer ring  150  may have an outer surface that is located a perpendicular distance R 2  from the axis  10 . R 2  may be a dimension equal to roughly half of the overall width of the outer ring  150 . The distance R 2  may be a radius of a circular outer ring  150 . However, the outer ring  150  may not be circular, and thus in some embodiments the distance R 2  may not be a radius. Further, R 2  need not be constant as measured at different angular locations of the cover  100 . For example, the outer ring  150  or other parts such as the skirt  120  may be arcuate but with straight outer edges such that the ring  150  or skirt  120  appears square or rectangular as viewed from the top. For such a shape, R 2  would vary depending at which angular location the dimension is measured (i.e. which cross-section or side view is used to make the measurement). Thus, R 2  may vary with such a configuration as measured at different angular locations. In some embodiments, R 2  refers to a maximum or minimum width of the outer ring  126 , or other outer portion of the skirt  1220 . For a non-circular dome  126 , R 1  may be a maximum or minimum width, for example the maximum or minimum perpendicular distance from the axis  10  to respectively a farthest-most or closest portion of the outer ring  126 , or other outer portion of the skirt  1220 . 
     The outer ring  150  may be an elastic or otherwise flexible material. The outer ring  150  may expand to attach to various features of the cover  100  such as the outer perimeter  125  or other features. The outer ring may couple the ring body  110  with a mount  160 , as described herein. The outer ring  150  may provide structural stability to various features of the cover  100  such as the outer perimeter  125 . The outer ring  150  may include features that facilitate the flow of fluid through the cover  100  while preventing the flow of solids therethrough. In some embodiments, the outer ring  150  may include features that facilitate installation and securement of the cover  100 . 
     The outer ring  150  may include a ring body  152 . The ring body  152  may be a generally arcuate structure configured to couple with the cover  100 , such as with the outer perimeter  125  of the skirt  120 . In some embodiments, the ring body  152  may couple with the outer edge  129  of the skirt  120 . The ring body  152  may at least partially cover the outer edge  129  and/or the outer perimeter  125  when coupled with the skirt  120 . The ring body  152  may have a generally U- or C-shaped cross-section that extends in an arcuate manner and is swept out angularly about the central axis  110  (see  FIG.  1 E , for example). The ring body  152  may expand to couple around the skirt  120  of the cover  100 . The ring body  152  may contract to compress around and thereby secure to the skirt  120  or other features of the cover  100 . The outer ring  150  may also couple with a mount  160 . In some embodiments, the outer ring  150  may couple the ring body  110  with the mount  160 . 
     The outer ring  150  may include a variety of slots  153 , holes  154 , and/or openings  155 . The ring body  150  may form or define these and other features. For example, various surfaces of the ring body may define inner surfaces of the slots  153 , the holes  154 , and/or the openings  155 . As shown, the slots  153  may be elongated spaces within the ring body  152  and extending therethrough. The holes  154  may be generally circular spaces extending through the ring body  152 . The openings  155  may be partially circular and partially linear spaces extending through the ring body  152 . As shown, the slots  153  may be located along top and outer portions of the ring body  152  as oriented in the figure and in a generally arcuate configuration about the central axis  10 . The holes  154  may be located more inwardly on the ring body  152  as oriented in the figure and in a generally arcuate configuration about the axis  10 . The openings  155  may be located more outwardly on the ring body  152  as oriented in the figure and in a generally arcuate configuration about the axis  10 . These arrangements and configurations of the slot slots  153 , the holes  154  and the openings  155  are merely some examples, and a variety of configurations and arrangements of the various spaces may be incremented. 
     The slots  153 , the holes  154 , and/or the openings  155  may provide spaces through the ring body  152  that allow the passage of fluid therethrough while preventing the flow of solids therethrough. These spaces of the outer ring  150  may therefore improve the performance of the cover  100  through advantageous sizing and/or locating of the various spaces of the outer ring  150 . The slots  153 , the holes  154 , and the openings  155  may be in fluid communication with the cavity  112 . For instance, these spaces may be in fluid communication with the lower spaces  124  which may in turn be in fluid communication with the cavity  112 . Thus, the cover  100  may allow for fluid flow through the outer ring  150  while preventing or reducing the flow of gravel or other debris through the outer ring  150 . 
     The outer ring  150  may include one or more pockets  157 . The pockets  157  may be located generally along the outer surface or services of the ring body  152  and an arcuate configuration about the axis  10 . The pockets  157  may extend generally upward and form a recess therein. The pockets  157  may assist with handling the outer ring  150 . In some embodiments, the pockets  157  may assist with assembling and/or disassembling the outer ring  150  with the ring body  110  and/or the mount  160 . The pocket  157  may provide a surface for a user or tool to grasp or to pry the outer ring  150  into or out of place on the cover  100 . 
     The outer ring  150  may not have any sharp edges. The edges of the various features of the outer ring  150  may therefore be rounded or otherwise smoothed. This may mitigate the chances of debris getting caught on the outer ring  150 . The outer ring  150  may further by relatively shallow or short to mitigate the chances of debris getting caught thereon. 
     The cover  100  may include a mount  160 . The mount  160  is partially visible in  FIG.  1 A . The mount  160  may secure the cover  100  to a mounting structure, such as a roof or floor. The mount  160  may have a generally arcuate shape. The mount  160  may have an arcuate or other shape before being assembled with other components of the cover  100 . The mount  160  may provide a structure to and from which the ring body  110  may be easily coupled and removed. For instance, the mount  160  may provide a feature or features to which the body  110  or other features of the cover  100  may be snapped. Therefore, the body  110  may be snapped into place with the mount  160  to easily secure the cover  100  in place. Similarly, the body  110  may be snapped off of the mount  160  to remove the body  110  therefrom. The mount  160  may have a lower side that attaches to a mounting structure, such as a roof, sidewalk, or other features surrounding a drain intended to be covered with by the cover  100 . The opposite side of the mount  160  may include these various features to which the body  110  may be coupled. Further detail of the mount  160  is described herein. In some arrangements, the mount  160  can be secured to the mounting structure by screws, nails, adhesives and/or other fastening devices or methods. Thus, in some embodiments of use, the mount  160  can be coupled to a mounting structure surrounding a drain. The cover  100  can be coupled to the mount  160  so that the cover  100  can cover the drain. The cover  100  may attach to the mount by friction fit, for instance by snapping projections of the cover into corresponding receiving structures of the mount as described herein. As described herein, this arrangement can allow fluids to flow through the cover  100  and into the drain even in the presence of buildup of solids or other foreign debris along and/or on the outside of the cover while also reducing the amount of debris buildup around the drain and cover  100 . 
       FIG.  1 B  is a side view of the cover  100 . As shown, the central vertical axis  10  may extend through the center of the cover  100  as oriented. Other geometric features may assist with describing the cover  100 . As shown, there may be a horizontal plane  15 . The horizontal plane  15  may be a geometric reference plane that is generally perpendicular to the axis  10 . The horizontal plane  15  may be generally defined by one or more features of the cover  100 . As shown, the horizontal plane may be generally formed by a lower surface or surfaces of the mount  160 . In some embodiments, the horizontal plane  115  may be formed or otherwise defined by various lower services of the outer ring  150  as oriented. In some embodiments, the horizontal plane  15  may be defined by various features of the skirt  120 , such as the outer perimeter  125 . It is understood that the precise vertical location of the horizontal plane  15  along the axis  10  may be located in a variety of locations of the cover  100 . Further, the various feature or features of the cover  100  that may define the horizontal plane  15  need not all be in a precise exact plane, rather the various features may be generally within the plane  15 . Further, it is understood that the various features defining the horizontal plane  15  may do so when the cover  100  is in an unrestrained state. The various features defining the plane  15  may be contorted or otherwise manipulated or bent when the cover  100  is attached to a mounting structure. When the cover  100  is attached to a mounting structure the various features defining the plane  15  may no longer be planar. For instance, the cover  100  may be attached to a curved mounting structure in which the mount  160  or other features of the cover  100  may not reside in an exact plane in the attached configuration. Thus, it is understood that the plane  15  is defined with respect to the cover  100  in an unrestrained state before the cover  100  is secured to a mounting structure. 
     As shown in  FIG.  1 B , the skirt  120  may be angled with respect to the axis  10  and/or the horizontal plane  15 . As shown, portions of the skirt  120 , such as the lower ribs  122 , when viewed from the side may be oriented at an acute angle A with respect to the axis  10 . “Acute” is used in its usual and customary sense as indicating an angle that is less than 90°. The skirt  120  may extend about the axis  10  in a generally arcuate configuration, as mentioned. Therefore, the skit  120  may provide a number of surfaces which are oriented at the angle A with respect to the axis  10  that also extend about the axis  10  in a generally arcuate configuration. The skirt  120  may skirt flare outward and downward from the lower portion  121  to the outer edge  129  of the skirt in a first direction that is generally away from the central axis  10  and generally away from the dome  26 , wherein the first direction forms the acute angle A with the axis  10 . As further shown, the angle A may be acute when measured from a portion of the axis  10  that is under or below the cover  100 , as oriented in  FIG.  1 B . The angle A may be acute when measured from a portion of the axis  10  that is under or below the horizontal plane  15 , as oriented in  FIG.  1 B . 
     The angle A may be sized in order to optimize or otherwise facilitate the flow of fluid through the cover  100  while preventing the buildup of solids or other debris from blocking the flow of fluid through the cover  100 . For example, the angle A may be relatively large such that a buildup of solids or other debris on or near the skirt  120  will still allow for the flow of fluid through the skirt  120 . For instance, leaves and sticks or other debris may build up onto the skirt  120 . By having a relatively large angle A, the buildup of debris on the skirt  120  will still allow the flow of fluid through the cover  100  due to gravity causing the fluid to drip through the buildup of debris and through the lower spaces  124  of the skirt  120 . Therefore, the angle A may be sized such that such a buildup may be produced on top of or otherwise near the skirt  120  in order to allow the downward flow and/or dripping of fluid through the buildup and subsequently through the skirt  120 , into the cavity  112  therein, and ultimately into the drain. 
     In some embodiments, the angle A is greater than or equal to 60°. However, the angle A may have a variety of sizes. In some embodiments, the angle A may be greater than or equal to 65°, greater than or equal to 70°, greater than or equal to 75°, greater than or equal to 80°, greater than or equal to 85°, or other smaller, intermediate or larger angular amounts. These are just some examples and are not limiting of the scope of this disclosure. For instance, in some contexts a larger angle A may be implemented that still produces the advantageous effects. For example, depending on the contour of the mounting structure to which the cover  100  is mounted or otherwise secured, the angle A may need to be less than 60°. In some embodiments, the angle A may therefore be less than 60°, such as 55°, 50°, 45° or other angular amounts. 
     While the angle A may be generally constant for the entirety of the skirt  120  about the axis  10 , the angle A need not be constant. For example, the angle A may have one value at one angular location of the skirt  120  about the axis  10 , and a different value at a different angular location of the skirt  120  about the axis  10 . Therefore, a variety of configurations and arrangements of the skirt  120  related to the angle A may be implemented. 
     It is understood that the orientation of the skirt  120 , such as the orientation of the lower ribs  122 , may be described with respect to other geometric references or features of the cover  100 . For instance, the orientation of the skirt  120  may be described with respect to the axis  10  or plane  15 , or with respect to the mount  160 , the sidewall  130 , the top  140 , and/or other features or references. The particular references and features used to describe the orientation of the skirt  120  or parts thereof are merely for convenience and are not meant to limit the scope of the disclosure. 
     Further shown in  FIG.  1 B  is the sidewall  130 . As shown, the upper ribs  132  of the sidewall  130  may extend in a generally vertical direction when viewed from the side. The upper ribs  132  are shown oriented at an acute angle B with respect to the axis  10 . The angle B may be acute when measured from a portion of the axis  10  that is over or above the cover  100 , as oriented in  FIG.  1 B . The angle B may be acute when measured from a portion of the axis  10  that is over or above the horizontal plane  15 , as oriented in  FIG.  1 B . Other features of the sidewall  130  may also be oriented at the angle B. The angle B may be chosen so as to optimize or otherwise facilitate the flow of fluid through the cover  100  while preventing the flow of solids or other debris therethrough. In some embodiments, the angle B may be 0° such that the upper ribs  132  or other features of the sidewall  130  are vertical, or parallel to the axis  10 , or perpendicular to the horizontal plane  15 . In some embodiments, the angle be may be 5°, 10°, 15°, 20°, 25°, 30°, or other intermediate, lower or greater angular amounts. In some embodiments, the angle B may be equal to the angle A. In some embodiments, the angle B may not be equal to the angle A. The angle B may be greater or less than the angle A. 
     The sidewall  130  may include the upper ribs  132  having sides  133 . The sides  133  may be opposing sides or surfaces of the upper ribs  132 . The sides  133  may partially define upper spaces  134  on either side of an upper rib  132 . The distance between the sides  133  of the upper ribs  132  may define a width of the upper ribs  132 . Further, the two sides  133  of the upper ribs  132  may be oriented in a variety of manners with respect to each other. In some embodiments, the sides  133  may be parallel to each other such that the upper rib  132  has a uniform width along the length of the upper rib  132 . 
     In some embodiments, the two sides  133  of the upper rib  132  may not be parallel to each other such that the upper rib  132  does not have a uniform width along the length of the upper rib  132 . As shown, the two sides  133  of a single upper rib  133  may be oriented at an acute angle C with respect to each other. The angle C may be sized so as to optimize or otherwise facilitate the flow of fluid through the cover  100 . For example, the size of the angle C may be sized to optimize or otherwise facilitate the flow of fluid through the upper spaces  134  or other features of the sidewall  130 . In some embodiments, the angle C may be 1°, 2°, 3°, 4°, 5°, 10°, 15°, 20°, or other intermediate, smaller or greater angular amounts. 
     Because the upper ribs  132  may define one or more surfaces of the upper spaces  134 , the angle at which the sides  133  are oriented may affect the shape of the upper spaces  134 . Therefore, the various surfaces defining the upper spaces  134  may have a variety of configurations and/or orientations. In some embodiments, the upper spaces  134  may be generally rectangular, as mentioned. In some embodiments, the upper spaces  134  may be trapezoidal, or other shapes. Further, the upper ribs  132  as mentioned may be coupled on one end with the lower portion  121  and on the opposite end with the upper perimeter  133 . The upper ribs  132  may be wider on the end coupled with the lower portion  121  as compared with the end of the upper rib  132  coupled with the upper perimeter  133 , or vice versa. Therefore, it is understood that the angle C may refer to either a thinning or widening upper rib  132  in the direction from the lower portion  121  to the upper perimeter  133   
     Further visible in  FIG.  1 B  is a portion of the top  140 . As shown, the top ribs  142  may project slightly upward as oriented. The top ribs  142  may therefore have a slightly arcuate contour along the length of the top ribs  142 . Therefore, the top spaces  144  that may be defined by the top ribs  142  may have a complementary or corresponding shape. 
     Further shown in  FIG.  1 B  is the mount  160 . As shown, the mount  160  may have a mount body  162 . The mount body  162  may be a generally arcuate structure configured to couple with a mounting structure on one side and on the opposite side to various features of the body  110  of the cover  100 . The mount body  162  may have a lower side that defines the horizontal plane  15 . Further detail of the mount  160  is described herein, for example with respect to  FIG.  2   . 
     The overall height of the cover  300  as oriented in the figure may be about 4-5″. The cover  300  may have other heights as well, such as 1″, 2″, 3″, 6″, 7″, 8″, 9″, 10″, 15″ or other smaller, intermediate or greater heights. The overall width of the cover  300  as oriented in the figure may be from about 5″ to about 13″. The cover  300  may have other overall widths as well, such as 1″, 2″, 3″, 4″, 6″, 7″, 8″, 9″, 10″, 11″, 12″, 14″, 15″, 20″, 25″, 30″ 50″, or other smaller, intermediate or greater widths. These values for the overall width dimensions may apply to the dimension D 2  shown in  FIG.  1 C  and discussed in further detail herein. Further, the dimension R 2  may have values that are half or about half of these values for the overall width values. 
       FIG.  1 C  is a top view of the cover  100 . As shown, the cover  100  may have a generally arcuate shape, which may be circular. As shown, the cover  100  may have a generally circular shape when viewed from the top that is generally symmetric with respect to the axis  10 . The axis  10  appears as a point in the figure because it is being viewed in a plane that is perpendicular to the axis  10 . The cover  100  may have other arcuate shapes with respect to the axis  10 , such as elliptical, oval, circumferential, other rounded shapes, or combinations thereof. 
     The skirt  120  may similarly have a generally arcuate shape about the axis  10 . The skirt  120  may provide an extended area that is greater than the area of just the drain, over which the cover  100  may be positioned. By “extended area” in this context, it is meant the two dimensional surface area that the skirt  120  “sweeps” out. Thus, the “extended area” is not limited to only the surface area of the top surfaces of the skirt  120 , such as the top surfaces of the ribs  122 . It also includes the area of the skirt  120  over any openings in the skirt  120 , such as the spaces defined or formed by the ribs  122  or by other features of the skirt  120 . This extended area may be approximately equal to the area of the skirt  120  as viewed from the top view as shown in  FIG.  1 C , but the actual area will be higher because the skirt  120  may be angled. 
     In some embodiments, the skirt  120  may provide an extended area that is greater than the area of the drain. The “area of the drain” here may refer to the overall general area covered by the draining region of the drain, which includes but is not limited to any openings in the drain. For example, the area of the drain may be based on the width W of the drain, discussed herein with respect to  FIG.  9 A . In some embodiments, the skirt  120  may provide an extended area that is two, three, four, five, six, seven, eight, nine, or ten times as large as the area of the drain, or any smaller, intermediate or larger values. Tables 1 and 2 below show some examples of the relative size of the widths R 1  and R 2  as expressed by the ratio of R 2 /R 1  that may be implemented and the approximate corresponding increase in area, or the Area Factor “AF.” The designs shown are approximations as to the corresponding AF because the width of the drain is assumed to be similar to R 1 , i.e. that the drain is circular and has a diameter equal to twice the value of R 1 . Table 1 shows the resulting AF for a particular ratio of R 2 /R 1 . Table 2 shows the resulting ratio R 2 /R 1  for a particular AF. Either quantity R 2 /R 1  or AF may be chosen as a design goal and then the corresponding quantity calculated. Further, these are just some examples and are not meant to be self-limiting. Other values that may be used may be smaller, larger or in between the values shown in Tables 1 and 2. 
     
       
         
           
               
             
               
                 TABLE 1 
               
               
                   
               
               
                 Area Factor For a Given Ratio R2/R1 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
               
               
            
               
                 R 2 / 
                 1.50 
                 1.75 
                 2.00 
                 2.25 
                 2.50 
                 2.60 
                 2.75 
                 2.80 
                 2.90 
                 3.00 
               
               
                 R 1   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 AF 
                 1.3  
                 2.1  
                 3.0  
                 4.1  
                 5.3  
                 5.8  
                 6.6  
                 6.8  
                 7.4  
                 8.0  
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 2 
               
               
                   
               
               
                 Ratio R2/R1 for a Given Area Factor 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
               
               
            
               
                 AF 
                 1.5  
                 2.0  
                 3.0  
                 4.0  
                 5.0  
                 6.0  
                 7.0  
                 8.0  
                 9.0  
                 10.0  
               
               
                 R 2 / 
                 1.58 
                 1.73 
                 2.00 
                 2.24 
                 2.45 
                 2.65 
                 2.83 
                 3.00 
                 3.16 
                  3.32 
               
               
                 R 1   
               
               
                   
               
            
           
         
       
     
     R 2  and R 1  may also be expressed relative to each other. R 2  may be expressed relative to a multiple of R 1 . Thus, for example, R 2  may be at least twice R 1 , i.e. R 2  may be greater than or equal to 2×R 1 . In some embodiments, R 2  may be greater than or equal to 2.25×R 1 , R 2  may be greater than or equal to 2.5×R 1 , R 2  may be greater than or equal to 2.75×R 1 , R 2  may be greater than or equal to 3×R 1 , R 2  may be greater than or equal to 3.5×R 1 , R 2  may be greater than or equal to 4×R 1 , etc. R 2  may further be capped at a maximum amount. Thus R 2  may be greater than or equal to 2×R 1  but less than or equal to 3×R 1 . In some embodiments, R 2  may be greater than or equal to 2×R 1  but be less than or equal to 2.25×R 1 , less than or equal to 2.5×R 1 , less than or equal to 2.75×R 1 , less than or equal to 3.5×R 1 , less than or equal to 4×R 1 , less than or equal to 5×R 1 , etc. In some embodiments, R 2  may be greater than or equal to 3×R 1  but be less than or equal 3.5×R 1 , less than or equal to 4×R 1 , less than or equal to 5×R 1 , etc. These are merely some examples and the min or max value of R 1  may be lower, intermediate, or greater multiples of R 2  besides those explicitly given herein and some examples can also include the various ranges and sub-ranges between the various minimum and maximum values of R 2  described above. 
     The increased area relative to the drain provided by the skirt  120  may increase the chances of draining surrounding fluids through the drain. This may be due in part because a shallow-sloped skirt  120  may allow debris to flow over and past the skirt  120 , and further a larger area (as compared with the drain area) will now need to be covered or clogged. Therefore, not only may the orientation of the skirt  120  contribute to the effectiveness of the cover  100 , but the overall area of the skirt  120  may contribute as well. 
     Some embodiments disclosed herein include a method of coupling a cover for a drain to a mounting surface, the method comprising: coupling the cover  100  to the mounting surface such that the cover at least partially surrounds the drain. In some embodiments, the cover  100  is coupled to the mounting surface via a mount  160  as described herein. In some arrangements, the drain has a half-width of R 1  and wherein the cover  100  includes an arcuate dome defining a central axis and an arcuate skirt coupled with the dome and having an outer edge, wherein the skirt flares outward and downward from the dome to the outer edge in a first direction that is generally away from the central axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the central axis that extends below the skirt, wherein the skirt forms a plurality of openings extending through the skirt, and wherein the outer edge of the skirt is located a perpendicular distance R 2  from the axis, and wherein R 2  is at least twice R 1 . In modified embodiments, R 2  can be within the values and ranges described herein. 
     As shown, the lower ribs  122  may be oriented such that they extend radially with respect to the central axis  10 . The lower ribs  122  and/or other features of the skirt  120  may be described as sweeping out an angle of 360° about the axis  10 . Therefore, the skirt  120  may be described as sweeping out an angle of 360° about the axis  10 . Similarly, the sidewall  130 , the top  140 , and or the outer ring  150  may be described as sweeping out an angle of 360° about the axis  10 . By sweeping out an angle of 360° it is meant that the closed shape such as a circle or other rounded shape is formed about or generally about the axis  10 . In some contexts, a cover  100  having a full 360° swept shape may be used over a drain on a mounting structure that has no interfering structures nearby, such as on an open part of the roof away from any walls of a building. However, in other contexts a drain may be located next to an interfering structure such as a wall, for example at the intersection of a roof and a wall on the roof. In these or other instances, less than 360° of swept out shape of the cover  100  may be implemented, as described in further detail herein for example with respect to  FIGS.  4 - 6   . 
     As shown in  FIG.  1 C , the lower ribs  122  may have one or more sides  123 . The sides one  123  may be a surface or surfaces of the lower ribs  122 . As shown, two sides  123  of a single lower rib  122  may be located on opposite sides of that single lower rib  122 . The sides  123  of the lower ribs  122  may partially define the lower spaces  124  that are adjacent to the lower rib  122 . As shown, the sides  123  may be generally straight. However, the sides  123  may be rounded, segmented, partially rounded and impartially straight, other shapes, or combinations thereof. 
     The lower ribs  122  may include a first end  122 A. The first end  122 A may couple the rib  122  with the lower portion  121 . The lower ribs  122  may also include a second end  122 B. The second end  122 B may be located on an end of the lower rib  122  that is opposite from the first end  122 A. The second end  122 B of the lower ribs  122  may couple the lower ribs  122  with the outer perimeter  123  (only partially visible in  FIG.  1 C ). The first end  122 A and the second end  122 B may each have a width defined in part by the distance between the sides  123  at the respective ends of the lower rib  122 . The width of the lower rib  122  at the first end  122 A may be less than the width of the lower rib  122  at the second end  122 B. In some embodiments, these two widths may be the same or approximately the same. In some embodiments, the first end  122 A may have a width that is greater than the width of the second end  122 B of the lower rib  122 . 
     As shown, the sides  123  of the rib  122  may be oriented with respect to each other at an acute angle D. The angle D may be sized so as to optimize or otherwise facilitate the flow of fluid through the skirt  120  and to prevent the flow of solids therethrough. The angle D may be chosen such that the lower spaces  124  defined by the skirt  120  are optimized in this manner. As shown, the first end  122 A may be relatively thinner or less wide than the second end  122 B of the lower rib  122 , such that the angle D between the sides  123  is measured as shown in  FIG.  1 C . However, the first end  122 A may be relatively wider than the second end  122 B of the lower rib  122  such that the angle D may be oriented differently. In either configuration, the descriptions for the angle D may apply equally. In some embodiments, the angle D may be 1°, 2°, 3°, 4°, 5°, 10°, 15°, 20°, or any other intermediate, lower or higher angular amount. Further, the angle D may be the same for all of the lower ribs  122  of the cover  100 , as shown. However, in some embodiments, the angle D may be different for different lower ribs  122  of the same cover  100 . 
     Further shown in  FIG.  1 C  are the lower spaces  124 . The lower spaces  124  may have a variety of shapes and configurations. The lower space  124  may include a first end  124 A and an opposite second end  124 B. The first end  124 A may be located adjacent to or otherwise near the lower portion  121 . The second end  124 B may be located adjacent to or otherwise near the outer perimeter  125 . As mentioned, the lower spaces  124  may be defined in part by the sides  123  of adjacent lower ribs  122 . The distance between two opposing sides  123  of two adjacent ribs  122  may define a width of the lower space  124  defined therein. The width of the lower space  124  at the first end  124 A may be the same as the width of the lower space  124  at the second end  124 B. In some embodiments, the width of the first end  124 A of the lower space  124  may be greater than the width of the lower space  124  at the second end  124 B. In some embodiments, the width of the first end  124 A of the lower space  124  may be less than the width of the second end  124 B of the lower space  124 . 
     In embodiments where the widths of the first end  124 A and of the second end  124 B are not equal, the lower space  124  may be defined with respect to the angle E as indicated. The angle E may be an angle defined by two opposing sides  123  of two adjacent lower ribs  122  that partially define the lower space  124  therebetween. The angle E may apply equally to lower spaces  124  where the first end  124 A is wider than the second end  124 B, and vice versa. In some embodiments, the angle E may be 1°, 2°, 3°, 4°, 5°, 10°, 15°, 20°, or other intermediate, lower or higher angular amounts. Further, the angle E may be the same for each of the lower spaces  124 . However, in some embodiments the angle E may be different for different lower spaces  124 . Therefore, one of the lower spaces  124  may have a first value for the angle E, while another lower space  124  may have a different value for the angle E. 
     The cover  100  may have a diameter D 1  and an overall diameter D 2 . The diameter D 2  may be a distance perpendicular to the axis  10  from one end of the cover  100  to the opposite end. The diameter D 1  may be a distance perpendicular to the axis  10  from one end or region of the lower portion  121  to the opposite end or region of the lower portion  121 . By “diameter” in this context it is understood that this may refer to an ordinary diameter of a circle, but that it may also refer to the width of a non-circular cover  100 , such as the major or minor axis of an elliptical cover  100 . Therefore, the nomenclature of the diameter D 2  is not meant to limit the cover  100  to any particular shape. Further, the diameters D 1  and D 2  may vary when measured at different angular locations, for instance with an elliptical cover  100 . 
     The diameter D 1  and/or the overall diameter D 2  of the cover  100  as oriented in  FIG.  1 C  may be various sizes to accommodate various sizes of drains. In some embodiments, the overall diameter D 2  of the cover  100  may be about 13″ which could fit, for example, over a drain that is 2-6″ wide. The overall diameter D 2  of the cover  100  may be other amounts as well, such as 8″, 9″, 10″, 11″, 12″, 14″, 15″, 16″, 17″, 18″, 19″, 20″, 25″, 30″ or other intermediate, lower or greater amounts. The cover  100  may also fit over drains of various widths, such as 1″, 7″ or greater. 
       FIG.  1 D  is a section view of the cover  100  as taken along the line  1 D- 1 D as indicated in  FIG.  1 C . As shown, the dome  129  and/or the skirt  120  may define the cavity therein. The dome  129  may be a shell-like structure attached to the skirt  120 . The ribs  122  as shown may include an elongated thin section extending toward the outer ring  150 . The outer ring  150  may be coupled with the skirt  120  and the mount  150  as shown. A detail view of this interface is indicated by region  1 E in  FIG.  1 D  and is shown in  FIG.  1 E . 
       FIG.  1 E  is a detail view taken from the region  1 E as indicated in  FIG.  1 D  showing a close up of the interface of the cover  100  including the skirt  120 , the outer ring  150  and the mount  160 . As shown, the skirt  120  may extend toward the outer perimeter  125 . The skirt  120  may include a first surface  131  located generally on top of the rub  122  as oriented. The first surface  131  may be planar. In some embodiments, the first surface  131  may be non planar. The first surface  131  may be a feature of the rib  122  that extends along a first direction that is at the acute angle A with respect to the axis  10 , as described herein. The first surface  131  may couple with a step  127 . The step  127  may be a transition zone of the rib  122 . The step  127  may be a substantially vertical transition from the first surface  131  as oriented. In some embodiments, the step  127  may be an angled or other non-vertical transition from the first surface  131  as oriented. The step  127  may be coupled with a second surface  128 . The step  127  may be a transition between the first surface  131  and the second surface  128 . The second surface  128  may be planar or non-planar, and it may be parallel with the first surface  131 . The second surface  128  may continue in a first direction that is at the acute angle A with respect to the axis  10 , as described herein. 
     Further shown in  FIG.  1 E  is the outer ring  150 . As shown, the outer ring  150  may have an inner edge  151 . The inner edge  151  may be an edge of the ring body  152 . The inner edge  151  may be an edge along an inner boundary of the ring body  152 . The inner edge  151  may interface with the skirt  120 . As shown, the inner edge  151  may abut features of the skirt  120 . The inner edge  151  may interface with the step  127  and/or second surface  128  of the skirt  120 . The inner edge  151  may abutt the step  127 . The inner edge  151  may compress against the step  127 . The inner edge  151  may rest on and/or be compressed against the second surface  128 . The cross-section of the ring body  152  may extend from the inner edge  151  along the second surface  128  and over the outer edge  129  of the skirt  120 . The ring body  152  may define an outer cavity. The outer cavity  113  may be a volume or space generally in between the inside surface of the ring body  152  and the outer edge  129  of the skirt  120 . The outer cavity  113  may be in fluid communication with one or more of the slots  153  or other openings formed by the ring body  152 . The outer cavity  113  may be in fluid communication with the cavity  112 . Thus, the slots  153  and/or other openings of the ring body  152 , as described herein, may be in fluid communication with the cavity  112  via the outer cavity  113 . The ring body may further extend over and around the outer edge  129  and include a curl  156  having an outer edge  158 . The curl  156  may be a portion of the ring body  152  that curls and then projects inward generally toward the axis  10 . The curl  156  may provide a surface or surfaces on which corresponding features of the mount  160  may rest, compress or otherwise couple. The outer edge  158  of the ring body  152  may abut, compress against, or otherwise be adjacent to the mount  160  when installed with the mount  160  on the cover  100 . 
     Further shown in  FIG.  1 E  is the mount  160 . The mount  160  may include the outer lip  170  projecting generally upward as oriented. The lip  170  may project generally perpendicularly from the mount surface  163 . The lip  170  may be coupled on one end to the mount surface  163  and on an opposite end with a rim  171 . The rim  171  may project generally perpendicularly from the end of the lip  170 . The rim  171  may be tapered as shown. The rim  171  may provide a feature with which the ring body  152  may couple. The rim  171  may be a feature with which the curl  156  of the ring body  152  may couple. The ring body  152  may be flexed to fit over the rim  171  of the mount  160 . The curl  156  may flex outward as oriented to fit over the rim  171  and then flex inward as oriented to securely couple with the rim  171 . The rim  171  may also be flexible. 
     The mount  160  may include a cavity  173  configured to receive a portion of the skirt  120 . As shown, the cavity  173  may be formed by a projection  174  and the lip  170 . The projection  174  may project upward as oriented from the mount surface  163 . The projection  174  may be shorter than the lip  170 . 
       FIGS.  1 F- 1 G  are perspective and side views, respectively, of the ring body  110  coupled with the mount  160 . The outer ring  150  has been removed to more clearly see how the mount  160  may couple along and around an underside of the ring body  110 . 
       FIG.  1 H  is a perspective view of an embodiment of the ring body  152  of the cover  100 . As shown, the dome  126  may be coupled with the ribs  122  of the skirt  120 . The skirt  120  may also include the first surface or surfaces  131  of the ribs  122  extending generally outward and downward from dome  126  toward the outer edge  129 . The first surfaces  131  may be located over a majority of the length of the ribs  122 , with the remaining outer portions of the length of the ribs  122  including the step  127  and the second surface  128 . 
     The outer edge  129  may extend around the outer perimeter  125  of the ring body  110 . The outer edge  129  may a wall-like structure. The outer edge  129  may be slid or hollow. The outer edge  129  may have no openings extending therethrough. In some embodiments, the outer edge  129  may define one or more openings extending therethrough. 
       FIG.  1 I  is a side view of the ring body  110 . As shown, the ring body  110  may include the dome  126  coupled on a top side of the skirt  120 . Further, the ring body  110  may have a width R 3  and/or an outer diameter D 3  as indicated. The width R 3  may be a perpendicular distance from the axis  10  to the outer edge  129  of the skirt  120 . The width R 3  may be a radius of the outer edge  129 . However, the outer edge  129  need not be circular, and thus the width R 3  may not be a radius. The overall diameter D 3  may be a distance from one side of the outer edge  129  to an opposite side of the outer edge  129  in a direction that is generally perpendicular to the axis  10 . The overall diameter D 3  may measure the span of a circular outer edge  129  or of a non-circular outer edge  129 . The distance of the width R 3  may be substantially the same as the distance of the width R 2  (see  FIG.  1 B , for example). The distance of the overall diameter D 3  may be substantially the same as the distance of the overall diameter D 2  (see  FIG.  1 C , for example). As mentioned, the outer edge  129  may not be circular, and thus in some embodiments the distance R 3  may not be a radius. Further, R 3  need not be constant as measured at different angular locations of the cover  100  or body  110 . For example, the outer edge  129  or other parts may be arcuate but with straight outer edges such that the outer edge  129  appears square or rectangular as viewed from the top. For such a shape, R 3  would vary depending at which angular location the dimension is measured (i.e. which cross-section or side view is used to make the measurement). Thus, R 3  may vary with such a configuration as measured at different angular locations. In some embodiments, R 3  refers to a maximum or minimum width of the outer edge  129 , or other outer portion of the cover  100  or body  110 . For a non-circular cover  100  or body  110 , R 3  may be a maximum or minimum width, for example the maximum or minimum perpendicular distance respectively from the axis  10  to a farthest-most or closest portion of the outer edge  129 , or other outer portion of the cover  100  or body  110 . 
       FIGS.  1 J and  1 K  are side views of other embodiments of the cover  100 . The covers  100  shown in  FIGS.  1 J and  1 K  may have the same or similar features and/or functionalities as other embodiments of covers described herein, for example the embodiments of the cover  100  shown in and described with respect to  FIGS.  1 A- 1 I and  3 A- 12 P . In some embodiments, the cover  100  of  FIG.  1 J  may have the same or similar features and/or functionalities as the cover  100  shown in  FIG.  1 B , but with the skirt  120  being horizontal, as further described. In some embodiments, the cover  100  of  FIG.  1 K  may have the same or similar features and/or functionalities as the cover  100  shown in  FIG.  1 D , but with the skirt  120  sloping down and inward toward the axis  10 , as further described. Therefore, description of similar callouts in other figures described herein may also apply to similar callouts shown in  FIGS.  1 J and  1 K , but with the exception that the skirt may be at different angles. 
     As shown in  FIG.  1 J , the skirt  120 , for example the lower ribs  122 , or portions thereof, may be horizontal. The skirt  120  may extend in a direction that is perpendicular to the axis  10  and/or parallel to the horizontal plane  15 . The skirt  120  may be considered to be flat. The skirt  120  may be parallel to a flat surface on which the cover  100  is installed. Other necessary changes may be made to the cover  100  to accommodate the horizontal skirt  120 , such as extending the upper ribs  133  and spaces  134  farther downward toward the skirt  120 , locating the upper perimeter  133  farther downward, etc. The skirt  120 , for example the lower ribs  122 , may extend in a direction that forms an angle A with a portion of the axis  10  that extends below the cover  100 , as described herein. As mentioned, the angle A may be greater than or equal to some threshold angle. In some embodiments, the angle A may be ninety degrees. In some embodiments, the angle A may be approximately ninety degrees. The angle A may be eighty-five, eighty-six, eighty-seven, eighty-eight, eighty-nine, ninety, ninety-one, ninety-two, ninety-three, ninety-four, ninety-five degrees, or other amounts around ninety. In some embodiments, the entire skirt  120  extends in the same direction, such that the entire skirt  120  is at the angle A. In some embodiments, portions of the skirt  120  may extend in two or more directions, such that a portion of the skirt  120  extends in a first direction at a first angle with respect to the portion of the axis  10  under the cover  10 , another portion of the skirt  120  extends in a second direction different from the first direction at a second angle different from the first angle with respect to the portion of the axis  10  under the cover  10 , etc. In some embodiments, a portion or portions of the skirt  120  may extend in a first direction that forms an angle A that is less than ninety degrees and another portion or portions of the skirt  120  may extend in a second direction that forms an angle A that is equal to or approximately equal to ninety degrees. 
     As shown in  FIG.  1 K , the skirt  120 , for example the lower ribs  122 , may be inwardly or “negatively” sloped. The skirt  120  or portions thereof may extend in a direction that extends downward and toward the axis  10 , as oriented in the figure. As with the cover  100  of  FIG.  1 J , other necessary changes may be made to the cover  100  to accommodate the inwardly sloped skirt  120 , such as extending the upper ribs  133  and spaces  134  farther downward toward the skirt  120 , locating the upper perimeter  133  farther downward, etc. The skirt  120  in  FIG.  1 K , for example the lower ribs  122 , may extend in a direction that forms an angle A with a portion of the axis  10  that extends below the cover  100 , as described herein. In some embodiments, the angle A may be greater than ninety degrees. In some embodiments, the angle A may be greater than approximately ninety degrees. The angle A may be ninety-one, ninety-two, ninety-three, ninety-four, ninety-five degrees, ninety-six, ninety-seven, ninety-eight, ninety-nine, one hundred degrees, or other amounts greater than ninety. In some embodiments, the entire skirt  120  extends in the same direction, such that the entire skirt  120  is at the angle A. In some embodiments, portions of the skirt  120  may extend in two or more directions, such that a portion of the skirt  120  extends in a first direction at a first angle with respect to the portion of the axis  10  under the cover  10 , another portion of the skirt  120  extends in a second direction different from the first direction at a second angle different from the first angle with respect to the portion of the axis  10  under the cover  10 , etc. In some embodiments, a portion or portions of the skirt  120  may extend in a first direction that forms an angle A that is less than ninety degrees, and/or another portion or portions of the skirt  120  may extend in a second direction that forms an angle A that is equal to or approximately equal to ninety degrees, and/or another portion or portions of the skirt  120  may extend in a third direction that forms an angle A that is greater than ninety degrees. 
       FIG.  2    is a top view of an embodiment of the mount  160 . As shown, the mount  160  may have a generally arcuate shape with respect to the axis  10 . The mount  160  may be circular and generally symmetric with respect to the axis  10 . However, a variety of other arcuate shapes of the mount  160  may be implemented. 
     The mount  160  may include a mount body  162  as shown. The body  162  may have a generally circular shape swept out for a full 360° about the axis  10 . In some embodiments, the mount body  162  may be swept out for less than 360°. 
     The mount  160  may include one or more mount surfaces  163 . The mount surfaces  163  may be arcuate and generally flat structures extending along the boundary of the mount  160 . The mount surfaces  163  may provide structural stability to the mount  160 . For example, the mount surfaces  163  may provide increased stiffness to the mount  160 . As shown, there may be six mount surfaces  163 . In some embodiments, there may be fewer or more mount surfaces  163 . In some embodiments, the mount surfaces  163  may be adjacent to each other. As shown, the mount surfaces  163  may be interspersed with intervening structures therebetween. 
     The mount  160  may include one or more flex joints  164 . The flex joints  164  may be located in between adjacent mount surfaces  163 . The flex joints  164  may provide flexibility to the mount  160  such that it can be secured to curved or other non-flat mounting structures or protuberances. The flex joint  164  may include a tab  166  having a hole  169  extending therethrough. The tab  166  may be an arcuate and generally flat structure extending for a portion of the contour of the mount  160 . In some embodiments, the tab  166  may be similar to the mount surfaces  163 . For instance, the tab  166  may be a shortened version of the mount surfaces  163 . The hole  169  extending through the tab  166  may be generally parallel with the axis  10 . In some embodiments, the whole  169  may not be parallel with the axis  10 . The hole  169  may be configured to receive a fastener such as a nail or rivets therethrough in order to secure the amount  160  to or otherwise with a mounting structure. The hole  169  may be circular as shown, or it may have other suitable shapes. The tab  166  may be separated from adjacent mount surfaces  163  on either side by a gap  168 . The gap  168  may be a space in between the mount surfaces  163  and the tabs  166 . The gaps  168  may partially provide flexibility to the flex joint  164  such that the mount  160  may be secured to a curved or other non-flat mounting structure. The size of the gaps  168  may be chosen so as to optimize this flexing capability. In some embodiments, the gap  168  may have a width of 0.1″, 0.2″, 0.125″, 0.25″, 0.5″, or other intermediate, lower or greater amounts. As shown, the gaps  168  may extend along most of the length of an interface between the tab  166  and the adjacent mount surface  163 . 
     The mount  160  may include a lip  170 . The lip  170  may be an arcuate structure extending along an outer boundary of the mount  160 . The lip  170  may provide structural stability to the mount  160 . For instance, the lip  170  may provide increased stiffness to the mount  160 . The lip  170  may couple with and project upwardly from the mount surfaces  163 . The lip  170  may therefore form a wall structure around the boundary of the mount  160 . The lip  170  may be flexible such that it can flex to couple with the body  110  of the cover  100 . In some embodiments, the lip  170  may be expandable and contractible to fit around and/or cover and then compress onto the outer perimeter  125 . The lip  170  may be formed from a variety of suitable materials, including plastics, polymers, composites, metals, other materials or combinations thereof. There may be multiple segments that form the lip  170 . As shown, the lip  170  may be formed of eighteen segments. The segments together may form the lip  170 . In between the segments of the lip  170  there may be openings  172 . The openings  172  may be spaces in between the segments of the lip  170  that increase the flexibility of the lip  170 . In some embodiments, the mount  160  may be secured to a curved or other non-flat mounting structure, and the openings  172  may allow for short segments of the lip  170  which may provide more flexibility to the mount  160  than longer segments. The openings  172  may be a variety of sizes and shapes. In some embodiments, the openings  172  may be rectangular spaces in between the segments of the lip  170 . The openings  172  may have a width from one segment of the lip  170  to an adjacent segment of the lip  170 . This width may be 0.01″, 0.1″, 0.2″, 0.3″, 0.4″ 0.5″, 0.75″ or other intermediate, lower or greater values. 
       FIG.  3 A  is a perspective view of another embodiment of a cover  300 . The cover  300  may have any of the features and functionalities as the cover  100  described herein. As shown, the cover  300  may have a body  310  with various portions. As shown, the body  310  may include a skirt  320  coupled with an upper portion  330 , which may be coupled with a top  340 . These portions may have the same or similar features and functionalities as analogous features of the cover  100 , such as, respectively, the body  110 , the skirt  120 , the sidewall  130 , and the top  140 . The skirt  320  may include one or more ribs  322  defining in part one or more spaces  324 , which may have the same or similar functionalities as the lower ribs  122  and lower spaces  124 , respectively. The cover  300  may have an outer ring  350  coupled with the skirt  320  in the same or similar way as the outer ring  150  and the skirt  120  of the cover  100 . The cover  300  may include a mount  360  coupled with the skirt  320  and/or the outer ring  350 . The mount  360  may have the same or similar functionalities as the mount  160  of the cover  100 . 
     As shown, the cover  300  may include one or more ribs  322  that extend from the skirt  320  to the upper portion  330 . Thus, the upper portion  330  and the skirt  320  may include different parts of the same rib  322 . The ribs  322  may further extend to the top  340 . Similarly, one or more spaces  324  defined in part by the ribs  322  may extend from the skirt  320  to the upper portion  330 . The spaces  324  may further extend to the top  340 . The top  340  of the cover  300  may be generally flat as shown. The top  340  may therefore not have any openings or ribs at a location generally near the center of the top  340 . 
       FIG.  3 B  is a side view of the cover  300 . As shown, the cover  300  may include one or more transition segments  325 . The transition segment  325  may couple the skirt  320  with the upper portion  330 . The transition segment  325  may have a generally curved contour as shown and as oriented in the figure. In some embodiments, the transition segment  325  may have a sharper contour, may be segmented, may be partially round and partially straight, may be other shapes, or may be combinations thereof. The top  340  may also have a curvature when viewed from the side and as oriented in the figure. The top  340  may be a dome or other similar structure. 
       FIG.  4    is a perspective view of an embodiment of a cover  400 . The cover  400  may have the same or similar functionalities as the cover  100  and/or the cover  300 . Thus, the body  410 , the top  440 , the outer ring  450 , and the mount  460  may be the same or similar as, respectively, the body  110  or  310 , the top  140  or  340 , the outer ring  350  or  150 , and the mount  160  or  360 . However, the cover  400  as shown may not be swept out angularly a full 360° about the axis  10 . 
     The cover  400  and the various features thereof may be swept out about the axis  10  for an amount equal to a rotation angle  12 . As shown, the cover  300  and the various features and parts thereof, may be swept out angularly about the axis  10  for a rotation angle  12  of 180°. As mentioned, by “swept” it is meant that the various parts of the cover  400  may extend in a generally arcuate contour about the axis  10 . This contour may be circular as shown. In some embodiments, this contour may be elliptical, oval, circumferential, rounded, or other arcuate paths. Further, the rotation angle  12  may be greater or less than 180°. In some embodiments, the rotation angle  12  may be less than 360°, less than or equal to 270°, less than or equal to 180°, less than or equal to 90°, or any other intermediate, lower or higher angular amount. 
     In embodiments of the cover  400  that are swept out for a rotation angle  12  that is less than 360°, there may be exposed end surfaces of the various features of the cover  400 . As shown, the cover  400  may have mating surfaces  451 ,  461 ,  411 ,  431 ,  441  on both ends of the swept out cover  400 . The mating surface  451  may be an end surface or surfaces of the outer ring  450 . The mating surface  461  may be an end surface or surfaces of the mount  460 . The mating surface  411  may be an end surface or surfaces of the lower portion  420 . The mating surface  431  may be an end surface or surfaces of the upper portion  430 . The mating surface  441  may be an end surface or surfaces of the top  440 . These mating surfaces  451 ,  461 ,  411 ,  431 ,  441  may mate with an adjacent structure. By “mate” it is meant that these surfaces may abut, contact, be fastened to, or be near such adjacent structures. For instance, these surfaces may abut a wall protruding upwardly from the mounting structure to which the cover  400  is secured. 
     The mating surfaces  451 ,  461 ,  411 ,  431 ,  441  may form contours  470 ,  472 . The contours  470 ,  472  refer to the shape formed or defined by the various mating surfaces. The first contour  470  may be formed by the mating surfaces  451 ,  461 ,  411 ,  431 ,  441  on one end of the swept out cover  400 , and the second contour  472  may be formed by the mating surfaces  451 ,  461 ,  411 ,  431 ,  441  on the other end of the swept out cover  400 . As shown, the two contours  470 ,  472  may each be planar. The first contour  470  may define a first plane  471 . The second contour  472  may define a second plane  473 . As shown, the first and second planes  471 ,  473  may be coplanar. In some embodiments, the first and second planes  471 ,  473  may be non coplanar. Either or both of the first and second planes  471 ,  473  may intersect the axis  10 . As shown, the axis  10  may reside within both of the first and second planes  471 ,  473 . In some embodiments, the axis  10  may intersect one, both or neither of the planes  471 ,  473  at a single point. For instance, one or both of the planes  471 ,  473  may be angled with respect to the axis  10 , such as when the cover  400  is configured to abut against an angled, protruding structure. In some embodiments, the contours  470 ,  472  may not be planar. One or both of the contours  470 ,  472  may be non planar. For example, the contour  470  may be curved or otherwise shaped in order to complement an adjacent structure to which it is mated. Some examples of structures to which the various covers herein may be mated are shown and described herein, for example with respect to  FIGS.  5 - 6   . 
       FIGS.  5 - 6    are perspective views of other embodiments of covers for a drain shown installed adjacent to a protruding structure.  FIG.  5    depicts an embodiment of a cover  500  mounted generally on top of a mounting structure  502 , and  FIG.  6    depicts an embodiment of a cover  600  mounted generally on top of a mounting structure  603 . The covers  500 ,  600  may have any of the features and functionalities as the covers described herein, such as the cover  100 , the cover  300 , and the cover  400 . The mounting structures  502 ,  603  may be any surface near a drain and on which the covers may be installed or otherwise coupled with. In some embodiments, the mounting structure  502 ,  603  may be a roof top. 
     Referring to  FIGS.  5  and  6    respectively, the covers  500  and  600  may be mated with an adjacent structure  501  and  601  and thereby form an interface  570  and  670 . Mating surfaces of the cover  500  and  600  may abut or otherwise be adjacent to the adjacent structure  501  and  601 . The interface  570  and  670  may be defined by the mating surfaces and the contours formed from those mating surfaces extending along the adjacent structure  501  and  601 . The adjacent structure  501  and  601  may be a wall, a floorboard, a molding, or any other structure which would interfere with a full 360° swept out cover. 
     In some embodiments the covers disclosed herein may have adjustment mechanisms that allow the covers to conform or otherwise adjust to the surface or surfaces of an adjacent structure. As shown in  FIG.  6   , the cover  600  may have an adjustment mechanism  680 . The mechanism  680  may allow the cover  600  to adjust to the contour or surface of an adjacent structure, such as the structure  601 . The mechanism  680  may be attached to or integral with the cover  600 . In some embodiments, the mechanism  680  may be added on to an existing cover  600 . In some embodiments, the mechanism  680  may be part of the cover  600  structure. The mechanism  680  may be located substantially to one or another side of the cover  600 , such as substantially on the side facing the adjacent structure  601  as oriented in  FIG.  6   . 
     As shown, the mechanism  680  may include one or more fingers  682 . The fingers  682  may retractably extend from the mechanism  680  and toward the adjacent structure  601 . As shown, the fingers  682  may be located along the boundary of the interface  670  between the cover  600  and the adjacent structure  601 . The fingers  682  may be of varying length. The fingers  682  may extend from the mechanism  680  for a variable length to match the contour of the adjacent structure  601 . The fingers  682  may extend and thereby form or define spaces in between. The extended fingers  682  may act as an extension of one or more various parts of the drain over the gap in between the adjacent structure  601  and the cover  600 . As shown, the fingers  682  may provide an extended dome of the cover  600 . In some embodiments, the finger  682  may provide an extended skirt of the cover  600 . The fingers  682  may be formed from a variety of materials. The fingers  682  may be relatively rigid members formed from plastics or polymers. In some embodiments, the fingers  682  may be formed from metals, metal alloys, composites, other suitable materials, or combinations thereof. The fingers  682  may be relatively flexible members formed from a variety of materials, such as flexible plastics or polymers. In some embodiments, the fingers  682  may be formed from mesh material, flexible porous materials, other suitable flexible materials, or combinations thereof. Further details of the adjustment mechanism are discussed herein, for example with respect to  FIGS.  8 A- 8 B . 
       FIGS.  7 A- 7 E  are various views of an embodiment of a cover  700 .  FIG.  7 A  is a partial perspective view of the cover  700 , showing a lower portion  720 , an outer ring  750  and a mount  760  thereof.  FIG.  7 B  is an exploded view of the lower portion  720  and the mount  760  of the cover  700 .  FIG.  7 C  is a detail perspective view of part of the mount  760 , and  FIG.  7 D  is a detail perspective view of an interior of part of the outer ring  750 .  FIG.  7 E  is a top view of the mount of  FIG.  7 A . The cover  700  may have the same or similar features and functionalities as the cover  100 , the cover  300 , the cover  400 , the cover  500 , and the cover  600 . 
     As shown in  FIG.  7 B , the cover  700  may include an upper portion  730  coupled with a lower portion  720 , which may have the same or similar features as the various upper and lower portions described herein. The lower portion  720  and/or upper portion  730  may include one or more lower ribs  722 , which may have the same or similar features or functionalities as the various lower ribs described herein. The lower ribs  722  may partially or fully define one or more lower spaces  724  therebetween, which may have the same or similar features as the various lower spaces described herein. The lower spaces  724  may define channels that extend along the same direction as the ribs  722 . Any fluids collected within the lower spaces  724  may flow down the lower spaces  724  as oriented and into a cavity  712  formed by the cover  700 . The cavity  712  may have the same or similar features or functionalities as the cavity  112  of the cover  100 . The lower spaces  724  may therefore be channels in fluid communication with the cavity  712  and thus in fluid communication with the drain over which the cover  700  may be positioned. 
     The cover  700  may include an insert  726  coupled with the lower portion  720 . As shown, the insert  726  may be coupled with the underside of the lower space  724  as oriented. The insert  726  may couple with other features of the cover  700 . The insert  726  may be a protrusion of the cover  700  configured to couple with a complementary receiving structure of the mount  760  and thereby secure the body of the cover  700  to the mount  760 . The insert  726  may be coupled to the lower portion  720  or other features of the cover  700  by a neck  728 . The neck  728  may be a thinner or skinnier portion of the insert  726  that facilitates securing the insert  726  with various features of the mount  760 , such as a catch  765 . 
     As shown in  FIGS.  7 B and  7 C , the mount  760  may have a catch  765 . The catch  765  may be a structure of the mount  760  configured to couple with or otherwise attach to the insert  726  and/or the neck  728 . The catch  765  may form an opening  767  extending through the catch  765  and having a narrower slit for access to the opening  767 . The insert  726  may be inserted into the opening  767  such that the neck  728  comes to rest within the slit of the catch  765  and the insert  726  is inside the larger opening  767 . The catch  765  may be formed of flexible or otherwise resilient material such that it can flex to receive the insert  728  therein. The insert  728  may also be slid into the opening  767  from the side. The catch  765  and/or insert  726  and/or neck  728  may be plastic, polymer, composite, metal, other materials, or combinations thereof. In some embodiments, the insert  726  and/or neck  728  may be located on the mount  760  with the catch  765  located on the lower portion  720  of the cover  700 . Therefore, the configuration shown is merely one example and many other suitable configurations may be implemented. 
     The mount  760  may include a foundation  763 . The foundation  763  may be a generally arcuate structure that extends generally along the boundary of the cover  700 . The foundation  763  may have a top side as oriented configured to couple with the body of the cover  700 , and a bottom side opposite the top side configured to mount, secure, attach or otherwise couple with a mounting structure, such as the mounting structure  502  and  603  described herein. The bottom side of the foundation  763  may couple with a mounting structure in a variety of ways. In some embodiments, the foundation  763  may include one or more tabs, such as the tab  166  described with respect to  FIG.  2   . In some embodiments, the foundation  763  may be adhered or bonded to the mounting structure. In some embodiments, the foundation  763  may be mechanically fastened, such as with fasteners, nails, rivets, brackets, etc., to the mounting structure. 
     As shown in  FIG.  7 D , the outer ring  750  may include a ring body  752 , which may have the same or similar features and functionalities as the other ring bodies described herein, such as the ring body  152 . The ring body  752  may have one or more holes  754  extending through the ring body  752  that allow the flow of fluid therethrough. 
     The outer ring  750  may include a plug  758 . The plug  758  may be coupled with an interior surface of the ring body  752  and extend away from the ring body  752  toward the center of the outer ring  750 . The plug  758  may be a generally rectangular or trapezoidal projection. As shown, the plug  758  may have a wider base near the ring body  752  and then get progressively narrower therefrom. The plug  758  may be configured to couple with corresponding features of the cover body, such as the lower ribs  722  and/or the lower spaces  724 . The plug  758  may be received by these or other structures to secure the outer ring  750  to various features of the ring body such as the lower portion  720 , including the lower ribs  722  and/or the lower spaces  724 . The plug  758  can include one or more stops  756 . The stops  756  may be generally planar protrusions that extend away from the various surfaces of the plug  758  to which the respective stops  756  are coupled. As shown, there may be two stops  756 , with one stop  756  located on a top surface of the plug  758  as oriented in the figure and the other stop  756  located on a bottom surface of the plug  758  as oriented. The plug  758  with the stops  756  may be inserted into or otherwise received by a corresponding receiving structure of the ring body. The stops  756  may prevent the plug  758  from backing out of the receiving structure. The stops  758  may flex such that they may bend when the outer ring  750  is secured with a receiving structure, and they may straighten out in an unrestrained state for instance when not secured with the receiving structure. 
     As shown in  FIG.  7 E , the mount  760  may have a generally arcuate planform as viewed from above. The mount  760  may be circular as shown or other arcuate shapes. Further, the mount  760  may extend angularly for the full 360° as shown, or it may extend angularly for less than 360°. The mount  760  may include the foundation  763  extending arcuately and forming flex joints  764  therein. The flex joints  764  may be formed by one or more gaps  768  formed in or by the foundation  763 . In some embodiments, there may be multiple segments of the foundation  763  that are coupled together. The segments may refer to different portions of the foundation  763 . In some embodiments, the segments may be separate parts of the foundation  763  that are coupled together. The gaps  768  may be triangular as shown. In some embodiments, the gaps  768  may be other shapes, such as rectangular, square, polygonal, rounded, other shapes, or combinations thereof. There may be eight gaps  764  as shown. In some embodiments, there may be fewer or more gaps  764 , such as one, two, three, four, five, six, seven, nine, ten or more gaps  764 . The gaps  764  may provide flexibility to the mount  760  such that it can flex or otherwise contort to mount with curved or other non-planar mounting structures. The mount  760  may also have openings extending through the mount  760  to allow for the flow of fluid therethrough. 
     The mount  760  may include multiple catches  765 . As shown, there may be four catches  765 . There may be fewer or more catches  765 , such as one, two, three, five, six, seven, eight, nine, ten or more catches  765 . The catches  765  may be located symmetrically about the mount  760 . The catches  765  may be located asymmetrically about the mount  760 . As shown, there may be segments of the foundation  765  having the catch  765  and adjacent segments of the foundation  765  not having the catch  765 . 
       FIG.  8 A  is a perspective view of an embodiment of a cover  800  with an adjustment mechanism  880 . The cover  800  may have any of the same or similar features and/or functionalities as any of the covers disclosed herein, such as the cover  100 ,  300 ,  400 ,  500 ,  600 , or  700 . The adjustment mechanism  880  may have any of the same or similar features and/or functionalities as any of the adjustment mechanisms disclosed herein, such as the adjustment mechanism  680 . The adjustment mechanism  880  may be coupled with, such as integrally formed with or attached to, the cover  800  having a skirt  820  and dome  826  as shown. The mechanism  880  may be snapped into place on the cover  800 . In some embodiments, the mechanism  880  may form the dome  826  of the cover  800 . 
     The adjustment mechanism  880  may include features for conforming or otherwise adjusting the cover  800  or parts thereof, such that it forms a portion of the cover between the cover  800  and an adjacent structure  801 , such as a wall. The mechanism  880  may have a rack  881  coupled with the cover  800 . As shown, the rack  881  may be coupled with the dome  826 . The rack  881  may provide a frame or other supporting structure for the mechanism  880 . The rack  881  may be formed from a variety of materials. The rack  881  may be include one or more relatively rigid members formed from plastics or polymers. In some embodiments, the rack  881  may be formed from metals, metal alloys, composites, other suitable materials, or combinations thereof. The rack  881  may be relatively flexible formed from a variety of materials, such as flexible plastics or polymers. In some embodiments, the rack  881  may be formed from mesh material, flexible porous materials, other suitable flexible materials, or combinations thereof. 
     The rack  881  may include one or more fingers  882 . The fingers  882  may have any or all of the same or similar features and/or functionalities as the fingers  682  described herein with respect to the cover  600 . The rack  881  and/or fingers  882  fingers  882  may extend outward away from the cover  800  to cover any gap in between the cover  800  and the adjacent structure  601 . As shown, the rack  881  and fingers  882  are in a retracted configuration. They may extend outwardly therefrom as described. The rack  881  and fingers  882  may be configured in a substantially square shape as shown. In some embodiments, the rack  881  and fingers  882  may be configured in other shapes, such as rectangular, rounded, segmented, other suitable shapes, or combinations thereof. The rack  881  may have three sides with fingers  882  attached thereto such that the rack  881  can extend from the cover  800  and thereby extend the fingers  882  therefrom as well. The rack  881  and fingers  882  may extend to contact or otherwise be near the adjacent structure  601 . With the rack  881  and fingers  882  extended, the mechanism  880  may provide an extended cover portion, such as an extended portion of the dome  826 , over the gap or space between the cover  800  and the structure  801 . In some embodiments, the mechanism  880  may provide an extended portion of the dome  826  and/or the skirt  820 , and/or any other portions of the cover  800 . The extension of the one or more fingers  882  and/or the rack  881  may define a plurality of spaces or openings between the extend fingers  882  to provide extra coverage in between the cover  800  and the adjacent structure  801 . In some embodiments, the fingers  882  may not be attached to the rack  881 . The fingers  882  may be formed from a variety of materials. The fingers  882  may be relatively rigid members formed from plastics or polymers. In some embodiments, the fingers  882  may be formed from metals, metal alloys, composites, other suitable materials, or combinations thereof. The fingers  882  may be relatively flexible members formed from a variety of materials, such as flexible plastics or polymers. In some embodiments, the fingers  882  may be formed from mesh material, flexible porous materials, other suitable flexible materials, or combinations thereof. In some embodiments, the fingers  882  may form a porous surface, such as a mesh, over the gap in between the adjacent structure  801  and the cover  800 . Therefore, the fingers  882  (as well as the fingers  682  described above) may not be elongated members but instead may be a surface or surfaces that extend from the cover  800  (or the cover  600 ). 
     The adjustment mechanism  880  may include one or more slots  884  forming openings  886  therethrough. The slots  884  may receive the fingers  882  into the openings  886 . The fingers  882  may retract into and/or expend out from the openings  886  of the slots  884 . The openings  886  may extend from one end of the slot  884  to the other, such that the fingers  882  may extend from one end of the slot  884  to the other. In some embodiments, the fingers  882  may protrude from either end of the slots  884  in either the installed or the uninstalled state. By “installed” it is meant that the cover  800  is in use with a drain and that the adjustment mechanism  880  is at least partially covering a space or gap between the cover  800  and the adjacent structure  801 . The side of the mechanism  880  that is opposite the rack  881  as oriented may be a removable side that snaps into place. Thus, one or more sides or other portions of the mechanism  880  may be removed from and re-assembled with the mechanism  880 . In some embodiments, the aforementioned side or other sides or portions may be removed for installation or coupling of the mechanism  880  with the cover  800 . 
       FIG.  8 B  is an exploded view of a finger  882  and corresponding slot  884  of the adjustment mechanism  880 . As shown, the finger  882  may include an elongated body  887  with a cap  889  attached to an end of the body  887 . The body  887  and/or cap  889  may have the respective substantially square cross-sections as shown, or they may have other suitable cross-sectional shapes. The cap  889  may be attached or integral with the body  887 . The cap  889  may provide a larger area in order to control the movement of the finger  882 . The cap  889  may prevent the finger  882  from extending beyond a specified limit within the slot  884 . In some embodiments, the cap  889  is larger than the opening  886  of the slot  884  and is thus prevented from entering the slot  884 . The body  887  may have one or more notches  888 . As shown, the notches  888  may be oriented substantially transversely along the length of the body  887  on a side thereof. The notches  888  may assist with locating and/or securing the fingers  882  at a particular location within the slots  884 . For instance, complementary protrusions on the inside of the slots  884  may be received by the notches  888  of the finger  882  as the notches  888  slide or otherwise move in or out of the opening  886  of the slot  884 . The notches  888  may be locked into place by such protrusions such that the finger  882  is prevented from further movement into or out of the opening  886  of the slot  884 . In some embodiments, the notches  888  may engage with various parts of the mechanism  880  to lock the finger  882  into place but allow the finger  882  to be moved from the locked position by providing enough force to the finger  882  such that the notch  888  disengages from the part to which it is locked. In some embodiments, the notches  888  may be on other parts of the mechanism  820  besides the fingers while the complementary engagement feature for the notches  888  maybe located on the finger  882 . Further, the notches  888  or other engagement features of the finger  882  may be located along one side of the body  887  as shown, and/or along other sides. For example, the notches  88  may, in addition or alternatively, be located on an underside or lateral side of the body  887  as oriented. Thus, the embodiments shown and described are merely some examples, and other suitable variations may be implemented. 
       FIG.  9 A  is a front cross-section view of an embodiment of a pipe stem  960  that connects a cover  900  with a drain body  902 .  FIG.  9 B  is a perspective view of the pipe stem  960 . The cover  900  may be any of the covers described herein. The drain body  902  is adjacent to a mounting surface  901 , such as a roof. The pipe stem  960  may have a sidewall  930 , which may be arcuate. The sidewall  930  may define a channel  903 . The channel  903  maybe an opening or otherwise open space or spaces in between and at least partially enclosed or otherwise defined by the sidewall  930 . The sidewall  930  may have the same or similar features as other sidewalls described herein, for example the sidewall  130  of cover  100 . The sidewall  930  may be circular in shape. The shape of the sidewall  930  may be configured to connect with the drain body  902  and/or the cover  900 . The shape of the sidewall at a first end  931 , which may be a top end, of the pipe stem  960  may differ from the shape of the sidewall  930  at a second end  932  of the pipe stem  960 , which may be a bottom end of the pipe stem  960 . In some embodiments, the shape of the ends  931 ,  932  may be the same. The sidewall  930  may have one or more openings  933  therethrough (more clearly seen in  FIG.  9 B ). The openings  933  may extend longitudinally between the ends  931 , 932  of the pipe stem  960 . In some embodiments, the openings  933  may extend laterally. In some embodiments, the openings  933  may be formed by a grid of longitudinal and lateral elements of the sidewall  930 . Therefore, a variety of configurations may be implemented for the openings  933 . The openings  933  in the sidewall  930  allow fluid to pass through the sidewall  930  and into the channel  903 . The pipe stem  960  may be formed from a variety of suitable materials, including plastics, polymers, composites, metals, other suitable materials, or combinations thereof. The pipe stem  960  may be formed from the same, monolithic piece of material. In some embodiments, there may be multiple segments that form the pipe stem  960 . As further described below, the pipe stem  960  may be formed of several moveable parts. 
     The pipe stem  960  may be configured to couple with, for example by snap fit to, the drain body  902  and/or cover  900 . In some embodiments, one or both ends  931 ,  932  of the pipe stem  960  may have threads and be configured to screw into the drain body  902  and/or cover  900 . In some embodiments, the pipe stem  960  may have one or more clips, which may be configured to couple one or both ends  931 ,  932  of the pipe stem  960  with the drain body  902  and/or cover  900 . The pipe stem  960  may attach to the drain body  902  and/or cover  900  by other known methods, such as with fasteners, adhesive, friction fit, interference fit, etc. Further, combinations of the various attachment techniques may be implemented. For instance, the first end  931  may have threads and the second end  932  may snap fit, etc. In some embodiments, the pipe stem  960  may be used in combination with a mounting collar, such as those described herein, to attach the cover  900  to the mounting surface  901 . The pipe stem may be one, two, three, four, or five inches tall. In some embodiments, the pipe stem may be any lesser, intermediate or greater height. The pipe stem  960  may be adjustable lengthwise, for instance so that the cover  900  may contact the mounting surface  901 . In some embodiments, the pipe stem  960  is segmented and can increase or decrease the distance between the first and second ends  931 ,  932 . For example, the pipe stem  960  may have two or more telescoping pieces that can move relative to each other to increase or decrease the distance between the first end  931  and the second end  932 . Thus, the pipe stem  960  may expand or contract to accommodate various sizes and shapes of covers, mounting surfaces, drain bodies, etc. 
     The various drain covers disclosed herein, such as the covers  100 ,  1200  or others, may have widths that are larger than the drain opening. As shown in  FIG.  9 A , the drain opening may have a width W. The width W may be the maximum width of the drain and/or drain opening. The width W may be the width of the drain body  902 . The width W may be other dimensions of various drains. The cover may have a width that is larger than W. For instance, the cover dimensions R 1 , R 2 , D 1 , D 2 , R 3 , D 3 , as described herein, may be larger than W. In some embodiments, these or other cover dimensions may be much larger than W. For example, the dimensions R 1 , R 2 , D 1 , D 2 , R 3 , D 3 , or other dimensions of the covers described herein, may be greater than or equal to W, greater than or equal to one and a half times W (i.e., 1.5×W), greater than or equal to twice W (i.e., 2×W), greater than or equal to three times W (i.e., 3×W), greater than or equal to four times W (i.e., 4×W), greater than or equal to five times W (i.e., 5×W), or any smaller, intermediate or larger multiples of W. 
       FIG.  10    is a perspective view of an embodiment of a cover  1000  having multiple levels. The cover  1000  may have the same or similar features and/or functionalities as other covers described herein, for example the cover  100 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 , and/or  900 . As shown in  FIG.  10   , the cover  1000  may have a body  1010  with various portions. As shown, the body  1010  may include a skirt  1020  coupled with a dome  1030 , which may be coupled with a top  1040 . These portions may have the same or similar features and/or functionalities as other covers described herein, for example the cover  100 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 , and/or  900 . As shown in  FIG.  10   , the skirt  1020  may include an upper level  1070 , intermediate level  1080 , and a lower level  1090 . In other embodiments, the skirt  1020  may have fewer or more than three levels. For example, there may be one, two, four, five, six, seven, eight, nine, or greater amounts of levels. These are merely some examples and are not meant to be self-limiting. 
     Each level  1070 ,  1080 ,  1090  of the skirt  1020  may include one or more ribs  1072 ,  1082 ,  1092 , respectively. Each level  1070 ,  1080 ,  1090  may include the portions  1071 ,  1081 , and  1091 , respectively. The ribs  1072 ,  1082 ,  1092  may form parts of the upper portion  1071 , intermediate portion  1081 , and lower portion  1091 , respectively. The ribs  1072 ,  1082 ,  1092  may be elongated members coupled with the portions  1071 ,  1081 , and  1091 , respectively, and extending outward therefrom. The ribs  1072 ,  1082 ,  1092  may couple with the portions  1071 ,  1081 , and  1091 , respectively, and extend radially outward therefrom. There may be multiple ribs  1072 ,  1082 ,  1092 . There may be twenty-eight ribs  1072  in the upper level  1070 , forty-eight ribs  1082  in the intermediate level  1080 , and sixty-eight ribs  1092  in the lower level  1090  (only some are visible in  FIG.  10   ). In some embodiments, there may be fewer or more ribs  1072 ,  1082 ,  1092 . For example, there may be ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hundred, one hundred fifty, two hundred, five hundred, or other intermediate, lower or greater amounts of ribs  1072 ,  1082 ,  1092 . These are merely some examples and are not meant to be self-limiting. The number of ribs  1072 ,  1082 , and  1092  may be different from or may be the same or similar to each other. The ribs of one level may connect or couple with the ribs of another level. 
     The ribs  1072 ,  1082 ,  1092  may have a generally U-shaped cross-section. In some embodiments, the ribs  1072 ,  1082 ,  1092  may have other shaped cross-sections, such as C-section, shallow U- or C-section, rectangular, square, rounded shapes such as circular, elliptical, arcuate, or other shapes, polygonal shapes, segmented shapes, hollow cross-section, solid cross-section, partially hollow and partially solid cross-section, and/or combinations thereof. The shape of the ribs  1072 ,  1082 ,  1092  may be different from or may be the same or similar to each other. 
     The ribs or other features of the skirt  1020  may define one or more spaces  1073 ,  1083 ,  1093 . The spaces  1073 ,  1083 ,  1093  may have the same or similar features and/or functionalities as other spaces described herein, for example the lower spaces  124 , upper spaces  134 , etc. As shown in  FIG.  10   , the spaces  1073 ,  1083 ,  1093  may be formed in the upper level  1070 , intermediate level  1080 , and the lower level  1090 , respectively. For clarity, only some of the spaces  1073 ,  1083 ,  1093  are labelled in the figure. The spaces  1073 ,  1083 ,  1093  may be openings allowing fluid to pass through the respective level. The spaces  1073 ,  1083 ,  1093  may have a variety of shapes and sizes, and they need not all be the same or similar shapes and sizes as each other. 
     The cover  1000  may include one or more transition segments  1025  and  1035  and an outer ring  1050 . The upper transition segment  1025  may couple the intermediate level  1080  with the upper level  1070 . The lower transition segment  1035  may couple the lower level  1090  with the intermediate level  1080 . The transition segments  1025  and  1035  may have a generally curved contour. In some embodiments, the transitions segments  1025  and  1035  may have a sharper contour, may be segmented, may be partially round and partially straight, may be other shapes, or may be combinations thereof. The shapes of the transition segments  1025  and  1035  may be different or the same or similar. The top  1040  may also have a curvature when viewed from the side. The top  1040  may be coupled with the dome  1030  and/or other structures. 
     Transition segments  1025  and  1035  may have the same or similar features and functionalities as the sidewall  130  of cover  100 . The transition segments  1025  and  1035  may include one or more transition ribs. The transition ribs may be elongated members extending along the transition segment from an upper level to a lower level. The transition ribs may be elongated with a generally rectangular or square cross-section. However, the transition ribs may have a variety of other shaped cross-sections such as described with the ribs  1072 ,  1082 , and  1092 . 
     Transition segments  1025  and  1035  and/or the outer ring  1050  may have the same or similar features and/or functionalities as the outer ring  150  of cover  100 . The transition segments  1025  and  1035  and the outer ring  1050  may include a variety of slots, holes, and/or openings that have the same or similar features and functionalities as the slots  153 , holes  154 , and/or openings  155  of cover  100 . The slots may be elongated spaces within the transition segment and/or outer ring and extending therethrough. The holes may be generally circular spaces extending through the transition segment and/or outer ring. The openings may be partially circular spaces extending through the transition segment and/or outer ring. 
     Transition segment  1025  may include the intermediate portion  1081 . Transition segment  1035  may include the lower portion  1091 . In some embodiments, the transition segments  1025  and  1035  may be formed from the same monolithic piece of material as the portions  1081  and  1091 . In some embodiments, the transition segments  1025  and  1035  and the skirt levels  1070 ,  1080 , and  1090  are formed from the same monolithic piece of material. However, the transition segments  1025  and  1035  may also be coupled with the portions  1081  and  1091  and/or skirt levels  1070 ,  1080 , and  1090  in a variety of ways, such as with mechanical attachments, adhering, fastening, bonding, or other suitable means. 
     The skirt  1020  may flare outward and downward from the upper portion  1071  to an outer perimeter  1099  in a first direction that is generally away from the central axis  10  and generally away from the dome  1030 . As shown in  FIG.  10   , the skirt levels  1070 ,  1080 , and  1090  may extend in generally parallel directions. In some embodiments, the skirt levels  1070 ,  1080 , and  1090  may extend in generally non-parallel directions. The lower level  1090  may flare outward and downward more steeply or more gradual than the other levels  1070 ,  1080 , or vice versa. 
     The levels  1070 ,  1080 , and  1090  of the skirt  1020  may have a variety of different cross-sections that are extruded in a generally arcuate manner about the axis  10 . These shapes may be square, rectangular, circular, rounded, polygonal, other shapes, or combinations thereof. The levels  1070 ,  1080 , and  1090  may have different shapes from each other. In some embodiments, the levels  1070 ,  1080 , and  1090  may have the same or similar shapes as each other. 
     The upper portion  1071 , intermediate portion  1081 , lower portion  1091  and outer edge  1099  may be located approximately a perpendicular distance W 1 , W 2 , W 3  and W 4 , respectively, from the axis  10 . W 1 , W 2 , W 3  and W 4  may each be a dimension equal to roughly half of the total width of the upper portion  1071 , intermediate portion  1081 , lower portion  1091  and outer edge  1099 , respectively. The distances W 1 , W 2 , W 3  and W 4  may be a radius. However, the upper portion  1071 , intermediate portion  1081 , lower portion  1091  and outer edge  1099  need not be circular, and thus in some embodiments the distances W 1 , W 2 , W 3  and/or W 4  may not be a radius. W 1 , W 2 , W 3  and W 4  may be measured perpendicularly from the axis  10  to any region of the respective portion or edge, including to regions of the portions or edge that are relatively closer or farther from the axis  10  than other regions of the portions or edge. Further, the dimensions W 1 , W 2 , W 3  and W 4  of the cover  1000  need not be constant as measured at different angular locations about the axis  10 . For example, the portions  1071 ,  1081 , and  1091  or outer edge  1099  may be arcuate but with straight outer edges such that the cover  1000  appears square, rectangular, other polygonal shapes, etc. as viewed from the top. For such a shape, W 1 , W 2 , W 3  and W 4  would vary depending on which angular location the dimension is measured. Thus, W 1 , W 2 , W 3  and W 4  may vary as measured at different angular locations about the axis  10 . 
       FIGS.  11 A and  11 B  depict various views of a mount  1160  that may be used with the various covers described herein, such as the cover  1100  as shown. The mount  1160  may have the same or similar features and/or functionalities as other mounts described herein, for example the mounts described with respect to covers  100 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 , and/or  900 . The mount  1160  may secure the cover  1100  to a mounting surface, such as a roof or floor. The mount  1160  may include an insert  1126  coupled with the mounting collar  1163 . The insert  1126  may be a protrusion of the mounting collar  1163  configured to couple with a housing structure  1165  of the cover  1100  and thereby secure the body of the cover  1100  to the mount  1160 . As shown in  FIG.  11 B , the insert  1126  may have a ball shape. In some embodiments, the insert may have a generally spherical shape, elliptical, or other three dimensional shape. The insert  1126  may be coupled to the mounting collar  1163  or other features of the mount  1160  by a neck  1128 . The neck  1128  may be a thinner or skinnier portion of the insert  1126  that facilitates securing the insert  1126  with various features of the cover  1100 , such as a housing structure  1165 . 
     As shown in  FIGS.  11 A and  11 B , the cover  1100  may have a housing structure  1165 . The housing structure  1165  may be a structure of the cover  1100  configured to couple with or otherwise attach to the insert  1126  and/or neck  1128 . The housing structure  1165  may form one or more openings  1167  extending through the housing structure  1165 . The housing structure  1165  and opening  1167  are configured to allow the insert  1126  to pass through and then close about the insert  1126  or portions thereof. The insert  1126  may pass partially or completely through the opening  1167 . As shown in  FIG.  11 A  the insert  1126  may pass completely through the cover such that the insert  1126  is adjacent the cover  1100 . The housing structure  1165  may be formed of flexible or otherwise resilient material such that it can flex to receive insert  1126  therein. The insert  1126  slides into the opening  1167  from below. The housing structure  1165  and/or insert  1126  and/or neck  1128  may be plastic, polymer, composite, metal, other materials, or combinations thereof. The configuration shown is merely one example and many other suitable configurations may be implemented. 
       FIGS.  12 A- 12 J  are various views of a cover  1200  and/or portions thereof.  FIG.  12 A  is a front perspective view of the cover  1200 .  FIG.  12 B  is a rear perspective view of the cover  1200 . The cover  1200  may include a skirt  1220  and a dome  1229 . The dome  1229  may include one or more dome portions. As shown, the dome  1229  may include a first dome portion  1236  and a second dome portion  1246 . The cover  1200  may have the same or similar features and/or functionalities as any of the covers disclosed herein, such as the cover  100 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 ,  900 ,  1000 , and/or  1100 . The first and second dome portions  1236  and  1246  may have the same or similar features and/or functionalities as the domes of covers  100 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 ,  900 ,  1000 , and/or  1100 . The skirt  1220  may have the same or similar features and/or functionalities as the skirts of covers  100 ,  300 ,  400 ,  500 ,  600 ,  700 ,  800 ,  900 ,  1000 , and/or  1100 . 
     Each dome portion  1236  and  1246  may have a top  1240  and  1241 , side  1205  and  1201 , and back  1211  and  1210 , respectively. The top  1240  and  1241  may have openings  1242  and  1243 . The shape of the sides  1201  and  1205  may be polygonal, trapezoidal, rectangular, square, triangular, circular, and/or a combination thereof. The sides  1201  and  1205  may have side ribs  1202  and  1206  and side spaces  1204  and  1208 . The shape of the backs  1210  and  1211  may be polygonal, trapezoidal, rectangular, square, triangular, circular, and/or a combination thereof. The backs  1210  and  1211  may have back ribs  1222  and  1226  and back spaces  1224  and  1228 . 
       FIGS.  12 B,  12 H and  12 I  show examples of dimensions for various embodiments of the cover  1200 . The cover  1200  may have various dimensions based on its application and its configuration. For instance, larger covers  1200  may be used for applications requiring larger drains or drain openings. Smaller covers  1200  may be used for applications that only require smaller drains or drain openings. The covers  1200  shown in  FIGS.  12 B,  12 H and  12 I  are embodiments that may be used for some drains and drain openings. 
     As shown, the cover  1200  may have a skirt  1220  having an overall width of about 22.5″ and/or an overall depth of about 13.″ In some embodiments, the cover  1200  may have a skirt  1220  having an overall width from about 8″ to about 35″ and/or an overall depth from about 5″ to about 25″. 
     The flat portion  1219  of the skirt  1220 , described below, may have a depth of about 7″ and/or a height of about 2″. In some embodiments, the flat portion  1219  of the skirt  1220  may have a depth from about 3″ to about 20″ and a height from about 0.5″ to 5″. 
     The dome  1229 , for example the dome portions  1236 ,  1246 , may have a depth of about 7″. The depth of the dome  1229  may be the same or similar as the depth of the flat portion  1219  of the skirt  1220 . The dome  1229 , for example the dome portions  1236 ,  1246 , may have a height of about 5.5″. In some embodiments, the dome  1229  may have a height from about 3″ to about 10″. 
     The dome  1229  from one side of the first dome portion  1236  to the opposite side of the second dome portion  1246  may be adjustable, from about 6″ (shown in  FIG.  12 I ) to about 12″, depending on the configuration. Thus, the distance between the sides  1201  and  1205 , described herein, may be adjustable, for example from about 6″ to about 12″. In some embodiments, the dome  1229  may have a width from about 3″ (shown in  FIG.  12 I ) to about 24″. 
     Each dome portion  1236 ,  1246  may be about half the width of the overall width of the dome  1229 . The dome portions  1236 ,  1246  may be less, for example slightly less, than half the width of the overall width of the dome  1229 . The dome portions  1236 ,  1246  may be greater, for example slightly greater, than half the width of the overall width of the dome  1229 . For instance, the dome portions  1236 ,  1246  may slightly overlap in most or all configurations. In some embodiments, each dome portion  1236 ,  1246  may have a width of about 3″, 4″, 5″, 6″, 6.25″, 7″, 8″, 9″, 10″, 11″ 12″, or any smaller, intermediate or greater value. 
       FIG.  12 C  is a perspective view of the first and second dome portions  1236 ,  1246 . The back of each dome portion  1236 ,  1246  may include ribs  1222 ,  1226  and/or fingers  1221 ,  1225 , such as those discussed above. In some embodiments, these and other ribs and/or fingers may extend in different directions. For example, the ribs  1222 ,  1226  may extend vertically, as discussed in further detail with respect to  FIGS.  12 H- 12 J . As shown in  FIGS.  12 A-C , the ribs  1222 ,  1226  and fingers  1221 ,  1225  may extend in perpendicular directions. In other embodiments, these and other ribs and/or fingers may extend in generally parallel directions. The fingers  1221  of the second dome portion  1246  may extend towards and fit into the spaces  1227  defined by the first dome portion  1236 . The fingers  1225  of the first dome portion  1236  may extend towards and fit into the spaces  1225  of the second dome portion  1246 . Together, the fingers  1221  and  1225  of the dome portions  1236  and  1246 , are configured to allow fluid to flow through but prevent debris from passing through. The dome portions  1236 ,  1246  may move relative to each other. For example, the fingers  1221  may be received in the spaces  1227 , and the fingers  1225  may be received in the spaces  1223 , as the two dome portions  1236 ,  1246  move relative to each other. Thus the dome portions  1236 ,  1246  may move closer or farther from each other to change the size of the dome  1229 . Further, as discussed below, the dome portions  1236 ,  1246  may move together in a forward direction  2  or rearward direction  4  (see  FIG.  12 F ), for example to accommodate a scupper drain on a roof. 
     The dome portions  1236 ,  1246  may also include one or more tracks to facilitate movement of the dome portions  1236 ,  1246 . As shown, the first dome portion  1236  may include a first track  1207  along an outer, lower perimeter of the first dome portion  1236 . Similarly. the second dome portion  1246  may include a second track  1209  along an outer, lower perimeter of the second dome portion  1246 . The tracks  1207 ,  1209  may extend along the outer lower perimeter of the respective dome portions  1236 ,  1246 . The tracks  1207 ,  1209  may be integral parts of the respective dome portions  1236 ,  1246 . In some embodiments, the tracks  1207 ,  1209  may be separate components coupled with the respective dome portions  1236 ,  1246 . The tracks  1207 ,  1209  may be received by various portions of the skirt  1220 . The tracks  1207 ,  1209  may be received by the outer slots  1251 ,  1252 . The tracks  1207 ,  1209  may be received by the grooves  1250 . Receipt of the tracks  1207 ,  1209  in the various portions of the skirt  1220  may allow the tracks  1207 ,  1209  to move in a forward direction  2  and rearward direction  4  (see  FIG.  12 F ). For instance, the cover  1200  may be placed next to a parapet wall having a scupper drain and a cant strip protruding from the wall, wherein the skirt  1220  may be placed adjacent the cant strip and the dome  1229  may be moved in the forward direction  2  to move closer to and/or cover the scupper drain. 
     In some embodiments the cover  1200  further comprises an attachment  1282  and/or  1292 . The attachments  1282 ,  1292  may couple with the first and/or second dome portions  1236  and  1246 , respectively. The attachments  1282  and  1292  may define spaces  1284  and  1294  that allow fluid to pass through the attachments  1282 ,  1292 . In some embodiments, the attachments  1282  and  1292  may include ribs  1283  and  1293  that define the spaces  1284 ,  1294  therebetween. In some embodiments, the attachments  1282 ,  1292  may provide an extended portion of the dome portions  1236  and  1246  and/or the skirt  1220 , and/or any other portions of the cover  1200 . The attachments  1282 ,  1292  may provide further skirt- or dome-like structure (i.e. filtering structure) in between the cover  1200  and an adjacent structure, such as a scupper or parapet wall. The shape of the attachment  1282  is configured to fill a gap that may be created between the cover and an adjacent structure (such as a scupper), for example when the dome portions  1236 ,  1246  are moved in a forward direction  2  (shown in  FIG.  12 F ). The shape of the attachments  1282 ,  1292  may be polygonal, trapezoidal, rectangular, square, triangular, circular, and/or a combination thereof. In some embodiments, the shape of the attachment is configured to accommodate a cant strip. 
     The attachments  1282  and  1292  may be formed from a variety of materials. The attachments  1282 ,  1292  may be formed from the same or similar materials as the other parts of the cover, such as the dome or skirt  1220 . The attachments  1282  and  1292  may be a relatively rigid member formed from plastics or polymers. In some embodiments, the attachments  1282  and  1292  may be formed from metals, metal alloys, composites, other suitable materials, or combinations thereof. The attachments  1282  and  1292  may be a relatively flexible member formed from a variety of materials, such as flexible plastics or polymers. In some embodiments, the attachments  1282  and  1292  may be formed from mesh material, flexible porous materials, other suitable flexible materials, or combinations thereof. In some embodiments, the attachments  1282  and  1292  may form a porous surface, such as a mesh, over the gap in between the adjacent structure and the cover  1200 . Therefore, the attachments  1282  and  1292  may not be an elongated member but instead may be a surface or surfaces that extend from the cover  1200 . The attachments  1282  and  1292  may snap or slide into place. The attachments  1282  and  1292  may connect or couple to a dome portion by any known method, such as adhesive, interference, friction fit, etc. 
       FIGS.  12 D- 12 F  are various views of the skirt  1220 .  FIG.  12 D  is a rear perspective view of the skirt  1220 ,  FIG.  12 E  is a side view of the skirt  1220 , and  FIG.  12 F  is a top view of the skirt  1220 . The skirt  1220  may include a flat portion  1219  and angled portion  1218 . The angled portion  1218  may comprise one or more sub-portions. As shown, angled portion  1218  may include a first angled sub-portion  1217 , a second angled sub-portion  1216 , and a third angled sub-portion  1215 . In some embodiments, the angled portion  1218  may have more or fewer than three sub-portions. As shown, the first angled sub-portion  1217  may be oriented angularly 90° about the axis  12  with respect to the second angled sub-portion  1216 . The second angled sub-portion  1216  may be oriented angularly 90° about the axis  12  with respect to the third angled sub-portion  1215 . This is merely an example and the sub-portions may be positioned in a variety of suitable locations relative to each other. 
     The skirt  1220  may include one or more grooves  1250  and/or outer slots  1251  and  1252 . The flat portion  1219  may include multiple grooves  1250 , for example about twenty-eight grooves  1250 . In some embodiments, the flat portion  1219  may include from about ten grooves  1250  to about sixty grooves. In some embodiments, there may be fewer than ten or more than sixty grooves  1250 . The grooves  1250  may extend along the flat portion  1219  from a rear region to a front region of the flat portion  1219 . In some embodiments, the grooves  1250  may extend in different directions. For example, the grooves may extend along the flat portion  1219  from the angled sub-portion  1217  to the angled sub-portion  1215 , in a diagonal direction, etc. In some embodiments, the grooves  1250  may extend partially or completely along the flat portion  1219 . In some embodiments, the grooves  1250  may comprise discrete sub-portions or extend continuously. 
     The dome portions  1236 ,  1246  may move in various directions. The dome portions  1236 ,  1246  may move in a forward direction  2  or rearward direction  4 , as indicated in  FIG.  12 F . The dome portions  1236 ,  1246  may be snapped in place in particular grooves  1250  and then move in a forward direction  2  or rearward direction  4 . In some embodiments, the dome portions  1236 ,  1246  may move in the forward direction  2  or rearward direction  4  by sliding along the grooves  1250  or outer slots  1251 ,  1252 . For instance, the tracks  1207 ,  1209  may slide along the outer tracks  1251 ,  1252 . The dome portions  1236 ,  1246  may also be placed closer or farther together by moving along the first lateral direction  6  or the second lateral direction  8 , as indicated in  FIG.  12 F . For instance, the dome portions  1236 ,  1246  may be placed in various lateral positions along the first lateral direction  6  and/or the second lateral direction  8 , and once a lateral position (“lateral” here defined as along the first lateral direction  6  or the second lateral direction  8 ) is selected for the dome portions  1236 ,  1246 , the dome portions  1236 ,  1246  may then be moved in the forward or rear direction  2 ,  4 . In some embodiments, the dome portions  1236 ,  1246  are located laterally along the first or second lateral direction  6 ,  8  such that lateral positions of the dome portions  1236 ,  1246  align with an adjacent drain, such as a scupper drain. In some embodiments, the dome portions  1236 ,  1246  may be located laterally along the first or second lateral direction  6 ,  8  and then snapped into place into particular grooves  1250 . Then, the dome portions  1236 ,  1246  may be moved along those particular grooves  1250 , for example in the forward direction  2  to move the dome portions  1236 ,  1246  closer to and/or abutting the drain. This may facilitate, for example, covering a scupper drain in a parapet wall that has a cant strip or other protrusion below the drain (see  FIG.  12 J , for example), such that the skirt  1220  is located adjacent the cant strip or protrusion and the dome  1229  may then be moved in the forward direction  2  over the cant strip or protrusion to cover the drain. Thus, a portion of the dome  1229  may overhang off the skirt  1220 , and the attachments  1282 ,  1292  may attach to this overhanging portion of the dome  1229 , as described herein. 
       FIG.  12 G  is a front view of the skirt  1220 . For clarity, in  FIG.  12 G  a rear portion of the skirt  1220  has been removed. As shown in  FIG.  12 G , the grooves  1250  may have a cross-section that is generally rectangular shaped, and the grooves  1250  may be generally evenly spaced. In some embodiments, the grooves  1250  may have other shaped cross-sections, such as C-section, shallow U- or C-section, rectangular, square, rounded shapes such as circular, elliptical, arcuate, or other shapes, polygonal shapes, segmented shapes, hollow cross-section, solid cross-section, partially hollow and partially solid cross-section, and/or combinations thereof. In some embodiments, the grooves  1250  may have different widths and not be evenly spaced. 
     The first and second dome portions  1236  and  1246  may connect or couple with the skirt  1220  by sliding into and/or through the grooves  1250  and/or outer slots  1251  and  1252  located on the skirt  1220 . The dome portions  1236  and  1246  may slide partially or completely into the grooves  1250  and/or outer slots  1251  and  1252 . The entire first and second dome portions  1236  and  1246  may be located over the skirt  1220 , as shown in  FIGS.  12 A  and B. The dome portions  1236  and  1246  may also be moved such they are located partially over the skirt  1220 . The dome portions  1236  and  1246  may also be moved laterally into different grooves  1250  so that the dome portions  1236  and  1246  are either closer together or farther apart in a lateral direction. The dome created by the dome portions  1236  and  1246  may be located near the center of the skirt  1220  or off-center. 
     The cover  1200  may be installed in the orientation shown in  FIG.  12 A  with a scupper located in front of the cover  1200  as oriented in  FIG.  12 A . By “front” it is understood that this description is relative to the orientation shown in  FIG.  12 A , i.e. the forward direction  2  indicated in  FIG.  12 F . The width of the dome  1229  created by positioning the dome portions  1236  and  1246  on the skirt  1220  may be less than, equal to, or greater than the width of the opening of the scupper or other drain. The maximum width of the dome  1229  may occur when the dome portions  1236 ,  1246  are attached to the outer slots  1251  and  1252 . The width of the skirt  1220  may be greater than the width of the opening of the scupper or other drain. In some embodiments, the width of the skirt  1220  may be twice as large as the maximum width of the drain opening. In some embodiments, the width of the skirt  1220  may be more than twice as large as the maximum width of the drain opening. 
     As mentioned, the dome portions  1236  and  1246  may slide along the grooves and extend towards the front to contact or otherwise be near an adjacent structure, such as a scupper or parapet wall. The adjacent structure may have an interfering structure, such as a cant strip, rounded edge, or other obstruction or dimension that would prevent the cover from being flush with the wall surface. When the dome portions are extended in front of the skirt  1220 , such that part of the dome portions are overhanging the skirt  1220 , there may be a gap between the adjacent structure and the skirt  1220 . 
     As shown in  FIG.  12 D , the skirt  1220  comprises a flat portion  1219  and an angled portion  1218 . As shown in  FIG.  12 F , the skirt  1220  may have a generally arcuate shape, which may be planform. The skirt may have other arcuate shapes, such as elliptical, oval, circumferential, other rounded shapes, or combinations thereof. As shown in  FIGS.  12 D and  12 F , the outer edge  1299  of the skirt  1220  as well as the flat portion  1219  may be generally rectangular. The skirt  1220  may define the geometric center axis  12  that is perpendicular to the flat portion  1219 . The angled portion  1218  may flare outward and downward from the flat portion  1219  to an outer perimeter  1299  in a first direction that is generally away from the central axis  12  and generally away from the flat portion  1219 . 
     As shown in  FIG.  12 E , the angled portion  1216 , when viewed from the side may be oriented at an acute angle A with respect to a portion of the axis  12  that is located underneath the skirt  1220 . Thus, the angle A may be acute when measured from a portion of the axis  12  that is under or below the cover  1200 , as oriented in  FIG.  12 E . As shown in  FIG.  12 G , the angled portions  1215  and  1217 , when viewed from the side may be oriented at acute angles B and C with respect to a portion of the axis  12   12  that is located underneath the skirt  1220 . Thus, the angles B and C may be acute when measured from a portion of the axis  12  that is under or below the cover  1200 , as oriented in  FIG.  12 G . The acute angles A, B, and C of the angled sub-portions  1217 ,  1216 , and  1215  with respect to the axis  12  may be different from each other or may be the same or similar to each other. 
       FIG.  12 H  is a front perspective view of another embodiment of the cover  1200 . As shown, the cover  1200  includes embodiments of the skirt  1220  and the dome  1229 . In addition, an embodiment of a mount  1260  is shown. The mount  1260  may be used with the various covers described herein, for example the cover  1200  described with respect to  FIGS.  12 A- 12 G . The embodiment of the cover  1200  shown in  FIG.  12 H  may have the same or similar features and/or functionalities as other covers described herein, for example the cover  1200  described with respect to  FIGS.  12 A- 12 G , and vice versa. 
     As shown in  FIG.  12 H , the dome  1229  may include an embodiment of the first dome portion  1236  and the second dome portion  1246 . The dome portions  1236 ,  1246  may include, respectively, embodiments of the ribs  1222 ,  1226 . The ribs  1222 ,  1226  may be oriented generally vertically, as oriented in the figure. The ribs  1222 ,  1226  may extend longitudinally along the length of the angled portion of the respective dome portions  1236 ,  1246 . Thus, the ribs  1222 ,  1226  may have a variety of configurations. In some embodiments, the ribs  1222 ,  1226  may extend in an angled direction, horizontal direction, other suitable directions, or combinations thereof. In some embodiments, the ribs  1222  of the first dome portion  1236  may extend in a different direction relative to the ribs  1226  of the second dome portion  1246 . These are merely some examples, and a variety of other configurations may be implemented. 
     The dome  1229  may include an inner side  1205 A. The inner side  1205 A may be a structural support coupled with the dome portion. The inner side  1205 A may be in addition to other sides of the dome portion. The inner side  1205 A may have the same or similar features and/or functionalities as the side  1205 , described herein. Thus, the inner side  1205 A may have ribs, spaces, etc. The inner side  1205 A may be located on a dome portion toward the inner part of the dome portion. As shown, the inner side  1205  may be coupled with the dome portion  1236 . The inner side  1205 A may be coupled with the dome portion  1236  on the opposite side as the side  1205 . Thus, the inner side  1205 A may be located generally in between the dome portions  1236 ,  1246  as oriented in  FIG.  12 H . 
     The cover  1200  may include the mount  1260 . The mount  1260  may be coupled with the cover  120 , for example with the skirt  1220 , as shown. The mount  1260  may snap fit with the cover  1200 , for example with the skirt  1220 . The mount  1260  may also couple with a receiving structure, such as a roof or floor structure. The mount  1260  may couple with a receiving structure in a variety of ways, as further described herein, for example with respect to  FIGS.  12 K and  12 L . Thus, the mount  1260  may provide a means for coupling the remaining parts of the cover  1200  with a roof, floor, etc. 
       FIG.  12 I  is a front perspective view of the cover  1200  of  FIG.  12 H  with the dome  1229  configured in a contracted configuration. As shown, the dome  1229  is contracted and moved to one side of the cover  1200 . The dome portions  1246  and  1236  may move relative to each other, as mentioned. As shown, the dome portion  1246  has been moved over the dome portion  1236 . Thus, both the first and second dome portions  1236 ,  1246  are located on one side of the cover  1200  as oriented in the figure. Such configurations may be used for example with varying size drains and drain openings. For example, the configuration of the cover  1200  shown in  FIG.  12 H  may be used for relatively larger drain openings while the configuration of the cover  1200  shown in  FIG.  12 I  may be used for relatively smaller drain openings. The configuration shown in  FIG.  12 I  is merely an example of how the cover  1200  can be configured. Due to the ability to move the dome portions  1236 ,  1246  both relative to each other and relative to the skirt  1220 , many other configurations of the cover  1200  may be implemented. For instance, another configuration is shown and discussed with respect to  FIG.  12 J . 
     As further shown in  FIG.  12 I , the ribs  1222 ,  1226  may coordinate with each other such that openings are still provided through the overlapping dome portions  1236 ,  1246  in the various configurations. For instance, in the configuration shown in  FIG.  12 I , the ribs  1222  of the second dome portion  1246  may be located over the ribs  1226  of the first dome portion  1236 . The ribs  1226  are identified with a dashed line because they are behind the ribs  1222 . Thus, with the second dome portion  1246  positioned as shown relative to the first dome portion  1236 , the ribs  1222 ,  1226  may align or otherwise provide for openings through that side of the dome  1229 . This is merely one example of how the ribs  1222 ,  1226  may coordinate with each other in various overlapping configurations, and other suitable coordinations may be implemented. 
       FIG.  12 J  is a front perspective view of the cover  1200  of  FIGS.  12 H and  12 I  installed next to a scupper drain opening  1203 D and with the dome  1229  in an extended configuration. The cover  1200  is shown located on top of a receiving structure  1203 A, such as a roof or structure thereof, and next to an angled wall section  1203 B and straight wall section  1203 C. The drain opening  1203 D intersects both the straight and angled wall sections  1203 C,  1203 B. This creates difficulty with sufficiently covering the drain opening  1203 D using typical drain covers. The cover  1200  can be adjusted to sufficiently cover the drain opening  1203 D. As shown, the dome portion  1236  has been moved slightly towards the dome portion  1246  to fit within the width of the opening  1203 D, and both dome portions  1236 ,  1246  have been moved toward the drain opening  1203 D. Thus, the dome  1229  extends partially into the drain opening  1203 D. The skirt  1220  may also abut the angled wall section  1203 B. In this manner, the cover  1200  may allow for sufficient coverage of the drain opening  1203 D. This is merely an example of how the cover  1200  can be adjusted to accommodate atypical drain openings and/or atypical structures surrounding drain openings. A variety of other types of drain openings  1203 D and structures may be accommodated and sufficiently covered with the cover  1200 . 
       FIGS.  12 K and  12 L  are top and bottom perspective views, respectively, of the mount  1260 . The mount  1260  may include a bottom side  1260 A and a top side  1260 B that is opposite the bottom side  1260 A. The top and bottom sides  1260 A,  1260 B may include the various features of the mount  1260  as described herein that are located on the respective sides of the mount  1260 . The mount  1260  may couple the cover  1200 , for example the skirt  1200 , to a receiving structure, such as a floor, roof, etc. The mount  1260  may have the same or similar features and/or functionalities as other mounts described herein, for example the mount  160 , and vice versa. The mount  1260  may be formed from a variety of materials, including rubber, plastic, polymer, metal, wood, other suitable materials, or combinations thereof. The mount  1260  may be formed from flexible materials. For example, the mount  1260  may flex in order to accommodate uneven receiving structures or protrusions thereof. 
     The mount  1260  may include a body  1261 . The body  1261  may be a structural member that forms portions of the mount  1260 . The body  1261  may have the generally rectangular shape shown. Other shapes and configurations may be implemented to suit the particular shape of the corresponding cover  1200 . The body  1261  may extend generally along the perimeter shown. The body  1261  may include a wall  1262 . The wall  1261  may extend along the perimeter of the mount  1260 . The wall  1261  may be flat in some portions and rounded in other portions. The wall  1261  may provide stiffness and/or stability to the mount  1260 . The body  1261  may include a floor  1263 . The floor  1263  may be coupled with the wall  1262 . The floor  1263  may be flat in some portions and may be rounded in other portions. The floor  1263  may extend along the perimeter of the cover  1200 . 
     The cover  1200  may include one or more tunnels  1264  defining one or more passages  1265 . The body  1261  may include the tunnels  1264  and passages  1265 , such as with the wall  1262  and/or floor  1263 . The tunnels  1264  and passages  1265  may provide spaces for fluid to pass through the mount  1260  when the mount  1260  is installed on a receiving structure, such as the receiving structure  1203 A. The mount  1260  may include a plurality of the tunnels  1264  and passages  1265  along one or more sides of the mount  1260 . As shown, the tunnels  1264  and passages  1265  may be includes along four sides of the mount  1260 , for example along four sides of the body  1261 . For clarity, only some of the tunnels  1264  and passages  1265  are labelled in  FIG.  12 K . There may be five, ten, twenty, fifty, seventy-five, one hundred, two hundred, or any smaller, intermediate or greater number of tunnels  1264  and/or passages  1265 . There may be more tunnels  1264  than passages  1265 , or vice versa. For instance, some of the tunnels  1264  maybe solid such that they do not define a corresponding passage  1265  therethrough. In some embodiments, some passages  1265  may be defined by features of the cover  1200  other than the tunnels  1264 . The tunnels  1264  and/or passages  1265  may have the generally rounded “U” shape as shown. In some embodiments, the tunnels  1264  and/or passages  1265  may have other suitable shapes, for example rounded, non-rounded, combinations thereof, etc. 
     The cover  1200  may include one or more mounting tabs  1267 . The body  1261  may include the tabs  1267 . The tabs  1267  may be extensions of the floor  1263 . The tabs  1267  may be elongated, flat structures that provide surface area with which to facilitate mounting of the mount  1260  on a receiving structure. The tabs  1267  may include openings  1268  that extend through the thickness of the tabs  1267 . Each tab  1267  may include the opening  1268 . The opening s 1268  may also be included in other parts of the cover  1200 , such as in the floor  1263  or other parts. There may be the same number of openings  1268  as tabs  1267 . There may be fewer or more openings  1268  than tabs  1267 . The openings  1268  may provide a space through which a fastener, such as bolt, etc., may be received in order to fasten the mount  1260  to a receiving structure. However, the mount  1260  may be coupled with a receiving structure in a variety of manners, as described herein. There may be four tabs  1267 , as shown. The tabs  1267  may be located generally in corners of the cover  1200 . In some embodiments, there may be fewer or more than four tabs  1267  located in a variety of locations of the cover  1200 . For instance, in addition or alternatively, there may be one or more tabs  1267  located along the straight portions of the body  1261 . 
     The cover  1200  may include one or more connection rods  1269 . The rods  1269  may be extensions from the cover  1200  to facilitate coupling the mount  1260  with other portions of the cover  1200 , such as with the skirt  1200 . The rods  1269  may extend from the mount  1260  generally perpendicular to the floor  1263  and tabs  1267 , as shown. In some embodiments, the rods  1269  may extend at an angle relative to the floor  1263  and/or tabs  1267 . The rods  1269  may be straight as shown. In some embodiments, the rods  1269  may be straight, bent, or combinations thereof. There may be four rods  1269 . In some embodiments, there may be fewer or more than four rods  1269 . There may be the same number of rods  1269  as tabs  1267 . In some embodiments, there may be more or fewer rods  1269  than tabs  1267 . The rods  1269  may be varying lengths. The rods  1269  may be 0.25″, 0.5″, 0.75″, 1″ 1.5″, 2″, 3″, or any shorter, intermediate or longer length. The rods  1269  may not all have the same length. Some of the rods  1269  may be longer or shorter than the other rods  1269 . 
     The mount  1260  may be used to couple the other parts of the cover  1200  to a receiving structure in a variety of manners. The mount  1260  may first be coupled with a receiving structure, and the remaining portions of the cover  1200  may then be coupled with the mount  1260 . 
     The mount  1260  may be coupled with a receiving structure in a variety of manners. The mount  1260  may be fastened, bonded, clipped, coupled to a receiving structure with other suitable techniques, or combinations thereof. In some embodiments, fasteners may be inserted through the openings  1268  and then fastened with the receiving structure, such as the receiving structure  1203 A. Fasteners may include screws, bolts, coil anchors, inserts, other suitable fastening type parts, or combinations thereof. In some embodiments, fasteners may be inserted through portions of the cover  1200 , such as through the floor  1263  or other portions. In addition or alternatively to fastening, the mount  1260  may be bonded or otherwise adhered to a receiving structure. For instance, the mount  1260  may be adhered, such as with the use of glue or other bonding agent, to a receiving structure. Portions of the cover  1200  on the bottom surface  1260 , such as surfaces of the body  1261  on that side of the cover  1200 , may be bonded to the receiving structure. For instance, surfaces of the floor  1263  on the bottom side  1260 A of the cover  1200  may be bonded to the receiving structure. As another example, the portion of the tabs  1267  on the bottom side  1260 A of the cover  1200  may be bonded to the receiving structure. 
     The mount  1260  may be coupled with the remaining portions of the cover  1200  in a variety of manners.  FIG.  12 M  is a perspective view of the skirt  1220 . As shown, the skirt  1220  may include openings  1255 . The openings  1255  may each receive one of the rods  1269  therethrough, for example as shown in  FIGS.  12 H- 12 J . Inserting the rods  1269  through respective openings  1255  may align the skirt  1220  with the mount  1260 . The openings  1255  may be located in the skirt  1220  to complement the locations of the rods  1269  on the mount  1260 . Thus, there may be the same number of openings  1255  as rods  1269 . In some embodiments, there may be fewer or more openings  1255  than rods  1269 . The openings  1255  may extend through the skirt  120  in various locations. As shown, the openings  1255  may extend through the angled portion  1218 . The openings  1255  may extend through the angled sub-portions  1215 ,  1216  and/or  1217 . 
     As shown in  FIG.  12 M , the skirt  1220  may include one or more teeth  1256 . The teeth  1256  may be short, flat extensions along the perimeter of the underside of the skirt  1220 . The teeth  1256  may define gaps  1257  therebetween. The skirt  1220  may couple with the mount  1260  by coupling the teeth  1256  and/or other features with the mount  1260 . The mount  1260  may couple with the skirt  1220  by snapping or otherwise fitting complementary respective portions together. For example, the body  1261  of the mount  1260  may fit together with the skirt  1220 . In some embodiments, the wall  1261  of the mount  1260  may snap onto or into the teeth  1256  of the skirt  1220 . In some embodiments, the teeth  1256  and/or gaps  1257  of the skirt  1220  may align with the tunnels  1264  and/or passages  1265  of the mount  1260 . 
     These are just some examples of how the mount  1260  and skirt  1220  may be coupled together. In addition or alternatively to the other techniques described herein, the skirt  1220  may be coupled with the mount  1260  by being fastened, bonded, other suitable techniques, or combinations thereof. 
     Further shown in  FIG.  12 M  are the grooves  1250  of the skirt  1220 . The embodiment of the grooves  1250  shown in  FIG.  12 M  may have the same or similar features and/or functionalities as the grooves  1250  described with respect to  FIGS.  12 A- 12 G , and vice versa. The grooves  1250  may all have the same spacing, such that they are essentially all the same width. In some embodiments, there may be variable widths among the various grooves  1250 . For example, some grooves  1250  may be relatively wider than other grooves  1250 . The variable width grooves  1250  may facilitate with assembly of the cover  1200 , for example by preventing incorrect assembly of the dome portions  1236 ,  1246  on the skirt  1200 . In some embodiments, half of the grooves  1250  may have a first width and the other half of the grooves  1250  may have a second width that is larger than the first width. Each respective size of grooves may be configured to receive particular corresponding dome  1229  features. 
     In alternative embodiments, in addition or alternatively to the grooves  1250 , the skirt  1220  may include multiple openings or holes in the flat portion  1219 . Such openings or holes may engage corresponding pegs or posts on the dome portions  1236 ,  1246 , for example pegs or posts extending from or forming portions of one or more of the tracks  1205 B,  1207 ,  1209 . 
       FIGS.  12 N,  12 O and  12 P  are various views of portions of the dome  1229 .  FIG.  12 N  is a perspective view of the first dome portion  1236 .  FIGS.  12 O and  12 P  are top and bottom perspective views, respectively, of the second dome portion  1246 . 
     As shown in  FIG.  12 N , the first dome portion  1236  may include the track  1207 . The track  1207  may be located along a lower portion of the side  1205 . The track  1207  may include a guide  1207 A, a positioner  1207 B, and/or a stop  1207 C. The guide  1207 A may be an elongated structure along the track  1207 . The positioner  1207 B may be an extension on the track  1207  located opposite the guide  1207 A for positioning and stability. The positioner  1207 B may be a rotatable feature, such as a wheel. The stop  1208 C may be located between the positioner  1207 B and the guide  1207 A. The stop  1208 C may be a stationary structure that prevents the dome  1229  from extending beyond a certain point, for example when the dome  1229  overhangs the skirt  1229 , as described herein. The guide  1207 A, positioner  1207 B, and/or stop  1207 C may couple with the skirt, for example with the grooves  1250 , and/or with other features of the flat portion  1219  described herein. In some embodiments, the track  1207  may snap into one of the grooves  1250 . The track  1207  may slide along the groove  1250  for adjustment. The track  1207  may provide friction when coupled with the groove  1250  so as to require a force to slide the track  1207  along the groove  1250 , for example to prevent unwanted relative movement when the track  1207  is coupled with the groove  1250 . 
     The first dome portion  1236  may include the inner side  1205 A. The inner side  1205 A may be located opposite the side of the first dome portion  1236  having the track  1207 . The inner side  1205 A may include a track  1205 B. The track  1205 B may have the same or similar features as the track  1207 . As shown, the track  1205 B may include fewer features than the track  1207 . The track  1205 B may include a lip  1205 C extending along the length of the track  1205 B. The track  1205 B, for example the lip  1205 C, may couple with a corresponding groove  1250  and slide therein. The track  1205 B, for example the lip  1205 C, may slide freely in the corresponding groove  1250 . In some embodiments, there may be friction so that a force must be overcome to move the track  1205 B, for example the lip  1205 C, along the corresponding groove  1250 . 
     The first dome portion  1236  may include the top  1240 . The top  1240  may be located along an upper portion of the first dome portion  1236 . The top  1240  may include a lip  1240 A extending along the length of the top  1240 . The top  1240 , such as the lip  1240 A, may couple with the second dome portion  1246 , as described herein. 
     As shown in  FIGS.  12 O and  12 P , the second dome portion  1246  may include the track  1209  and the top  1241 . The track  1209  may be analogous to the track  1207 . The track  1209  may be located along a lower portion of the side  1201 . The track  1209  may include a guide  1209 A, a positioner  1209 B, and/or a stop  1209 C. The guide  1209 A may be an elongated structure along the track  1209 . The positioner  1209 B may be an extension on the track  1209  located opposite the guide  1209 A for positioning and stability. The positioner  1209 B may be a rotatable feature, such as a wheel. The stop  1209 C may be located between the positioner  1209 B and the guide  1209 A. The stop  1209 C may be a stationary structure that prevents the dome  1229  from extending beyond a certain point, for example when the dome  1229  overhangs the skirt  1229 , as described herein. The guide  1209 A, positioner  1209 B, and/or stop  1209 C may couple with the skirt, for example with the grooves  1250 , and/or with other features of the flat portion  1219  described herein. In some embodiments, the track  1209  may snap into one of the grooves  1250 . The track  1209  may slide along the groove  1250  for adjustment. The track  1209  may provide friction when coupled with the groove  1250  so as to require a force to slide the track  1209  along the groove  1250 , for example to prevent unwanted relative movement when the track  1209  is coupled with the groove  1250 . 
     As shown in  FIG.  12 P , the second dome portion  1246  may include a guide member  1241 A defining a slot  1241 B. The top  1241  may include the guide member  1241 A defining the slot  1241 B. The guide member  1241 A and/or the slot  1241 B may extend along all or some of the length of the top  1241 . The guide member  1241  and/or slot  1241 B may couple with corresponding portions of the first dome portion  1236 . In some embodiments, the slot  1241 B may receive the lip  1240 A of the first dome portion  1236  therein. Thus, the second dome portion  1246  may overlap the first dome portion  1236 . 
     The dome  1229  may be coupled with the skirt  1220  in a variety of manners. In some embodiments the dome  1229  may be coupled with the grooves  1250  of the skirt  1220 . The dome  1229  may be coupled with the skirt  1220  before or after the skirt is coupled with the mount  1260 . In some embodiments, the first dome portion  1236  may be coupled with the skirt  1220 . Then, the second dome portion  1246  may be coupled with the skirt  1220 . The second dome portion  1246  may be assembled over the first dome portion  1236 , for example as shown and described with respect to  FIGS.  12 H- 12 J . 
     In some embodiments, the dome portions  1236 ,  1246  may first be located laterally, corresponding to the directions  6  and  8  shown in  FIG.  12 F . Lateral movement of the dome portion  1236 ,  1246  may entail for example sliding of the lip  1240 A of the first dome portion  1236  along the guide member  1241 A and/or slot  1241 B of the second dome portion  1246 , as described above. Once this relative lateral position of each dome portion  1236 ,  1246  is selected, the dome portions  1236 ,  1246  may be coupled with the grooves  1250  in those locations that correspond to the lateral positions of the dome portions  1236 ,  1246 . For instance, the tracks  1205 B,  1207  and/or  1209 , or features thereof, may be snapped into the corresponding grooves  1250  once the dome portions  1236 ,  1246  are in their desired lateral positions. The lateral positioning of the dome portions  1236 ,  1246  may be based on the location and/or size, for example lateral location or width, of a corresponding drain over which the cover  1200  is to be positioned. 
     After lateral placement as described above, the dome portions  1236 ,  1246  may then be located forward or rearward, corresponding respectively to the directions  2  and  4  shown in  FIG.  12 F . Forward or rearward movement of the dome portions  1236 ,  1246  may entail for example sliding of the tracks  1205 B,  1207  and/or  1209 , or features thereof, along the corresponding grooves  1250  once the dome portions  1236 ,  1246  are coupled with the corresponding grooves  1250 , as described above. The final forward or rearward positioning of the dome portions  1236 ,  1246  may be based on the location and/or size of a corresponding drain, for example position over a cant strip or angular opening of the drain, over which the cover  1200  is to be positioned. In some embodiments, the dome portions  1236 ,  1246  may be moved rearward  4 , for example into the extended configuration shown in  FIG.  12 J . 
     One arrangement can include method for covering a drain wherein a first dome portion and a second dome portion are coupled to a skirt that includes a portion forming a plurality of grooves extending in a first direction. The first and second dome portions can each comprise a sidewall with a lower portion that can engage at least one of the plurality of grooves. Each sidewall can form a plurality of drainage openings extending through the sidewall. The distance between first dome portion and the second dome portion can be adjusted with respect to each other on the skirt by positioning the lower portions of the first and second domes in one of the plurality of grooves. In some arrangements, adjusting the position of the first and second dome portions comprises increasing or reducing the overlap between the first and second dome portions. The position of the first and second dome portions on the skirt can be adjusted in the first direction by sliding the lower portions of the first and second dome portions along at least some of the grooves. 
       FIGS.  12 Q- 12 R  are side views of an embodiment of a horizontal skirt  1220  that may be used with the adjustable cover  1200 .  FIG.  12 S  is a side view of an embodiment of an inwardly sloped skirt  1220  that may be used with the adjustable cover  1200 . The skirts of  FIGS.  12 Q- 12 S  may be used with the dome  1229 , first and second dome portions  1236 ,  1246 , etc. as described herein. The skirts of  FIGS.  12 Q- 12 S  may have the same or similar features and/or functionalities as other embodiments of the skirt as described herein, for example the skirt  1220  as shown in and described with respect to  FIGS.  12 A- 12 M . 
     As shown in  FIGS.  12 Q- 12 R , the skirt  1220 , for example the first, second and/or third angled sub-portions  1217 ,  1216 ,  1215 , may be horizontal. The skirt  1220  may extend in a direction that is perpendicular to the axis  12 . The skirt  1220  may be considered to be flat. The skirt  1220  may be parallel to a flat surface on which the cover  1200  is installed. The skirt  1220 , for example the first, second and/or third angled sub-portions  1217 ,  1216 ,  1215 , may extend respectively in a direction that forms an angle A, B or C with a portion of the axis  12  that extends below the cover  1200 , as described herein. As mentioned, the angle A, B and/or C may be greater than or equal to some threshold angle. In some embodiments, the angle A, B and/or C may be ninety degrees. In some embodiments, the angle A, B and/or C may be approximately ninety degrees. The angle A, B and/or C may be eighty-five, eighty-six, eighty-seven, eighty-eight, eighty-nine, ninety, ninety-one, ninety-two, ninety-three, ninety-four, ninety-five degrees, or other amounts around ninety. In some embodiments, the entire respective angled sub-portion of the skirt  1220  extends in the same direction, such that the entire respective angled sub-portion of the skirt  1220  is at the angle A, B and/or C. In some embodiments, portions of the same angled sub-portion of the skirt  1220  may extend in two or more directions, such that a portion of the same angled sub-portion of the skirt  1220  extends in a first direction at a first angle with respect to the portion of the axis  12  under the cover  1200 , another portion of the skirt  1220  extends in a second direction different from the first direction at a second angle different from the first angle with respect to the portion of the axis  12  under the cover  1200 , etc. In some embodiments, a portion or portions of the same angled sub-portion of the skirt  1220  may extend in a first direction that forms an angle that is less than ninety degrees and another portion or portions of that same angled sub-portion of the skirt  1220  may extend in a second direction that forms an angle that is equal to or approximately equal to ninety degrees. 
     As shown in  FIG.  12 S , the skirt  1220 , for example the first and/or third angled sub-portions  1217  and  1215 , may be inwardly or “negatively” sloped. The second angled sub-portion  1216  may be similarly inwardly sloped but is not shown for clarity. The first, second and/or third angled sub-portions  1217 ,  1216 ,  1215  or portions thereof may extend in a direction that extends downward and toward the axis  12 , as oriented in the figure. For example, the first and/or third angled sub-portions  1217  and  1215  may extend in a direction that respectively forms an angle B and C with a portion of the axis  12  that extends below the cover  1200 , as described herein. In some embodiments, the angles B and/or C may be greater than ninety degrees. In some embodiments, the angles B and/or C may be greater than approximately ninety degrees. The angles B and/or C may be ninety-one, ninety-two, ninety-three, ninety-four, ninety-five degrees, ninety-six, ninety-seven, ninety-eight, ninety-nine, one hundred degrees, or other amounts greater than ninety. The angles B and C may be identical, approximately the same, or different. In some embodiments, the entire first and/or third angled sub-portions  1217  and  1215  extend in the same direction, such that the entire first and/or third angled sub-portions  1217  and  1215  is at the angle B or C, respectively. In some embodiments, portions of the first and/or third angled sub-portions  1217  and  1215  may extend in two or more directions, such that a portion of the first and/or third angled sub-portions  1217  and  1215  extends in a first direction at a first angle with respect to the portion of the axis  12  under the cover  1200 , another portion of the first and/or third angled sub-portions  1217  and  1215  extends in a second direction different from the first direction at a second angle different from the first angle with respect to the portion of the axis  12  under the cover  1200 , etc. In some embodiments, a portion or portions of the first, second, and/or third angled sub-portions  1217 ,  1216 ,  1215  may extend in a first direction that forms an angle that is less than ninety degrees, and/or another portion or portions of the first, second, and/or third angled sub-portions  1217 ,  1216 ,  1215  may extend in a second direction that forms an angle that is equal to or approximately equal to ninety degrees, and/or another portion or portions of the first, second, and/or third angled sub-portions  1217 ,  1216 ,  1215  may extend in a third direction that forms an angle A that is greater than ninety degrees. 
       FIGS.  13 A- 13 E  are various views of another embodiment of a cover  1300 . The cover  1300  may be used to cover scuppers. The scupper may be an opening in the side of a wall that leads to a drain. The cover  1300  can be placed in front of the scupper to prevent clogging of the scupper and allow drainage even when debris builds up around the cover  1300 . The cover  1300  may have the same or similar features and/or functions as the other covers described herein, including the cover  1200 , and vice versa, except as otherwise described.  FIG.  13 A  is a perspective front view,  FIG.  13 B  is a front side view,  FIG.  13 C  is a cross-section view as taken along line A-A in  FIG.  13 B ,  FIG.  13 D  is a top end view, and  FIG.  13 E  is a rear side view of the cover  1300 . 
     The cover  1300  includes a lower skirt  1302  and an upward extending dome  1304 . The skirt  1032  and dome  1304  may have the same or similar features and/or functions as, respectively, the skirt  1220  and the dome  1229 , and vice versa. As shown, the skirt  1302  has a curvature. The skirt  1302  may have a flat region near the top of the skirt  1302 . The outer and forward regions of the skirt  1302  are angled downward. The skirt  1302  includes a central region  1306  located centrally and near the dome  1304 . The central region  1306  may be a highest region of the skirt  1302 . The central region  1306  may be flat and/or include a curvature. The skirt  1302  includes a first lateral region  1310 , a second lateral region  1312  and a forward region  1308 . The forward region  1308  and the lateral regions  1310 ,  1312  extend outward and downward from the central region  1306  to an outer forward edge  1303  of the skirt  1302 . Rear edges  1301  of the skirt  1302  extend laterally along a rear side of the cover  1300 . The rear edges  1301  may extend to the dome  1304 . 
     The forward region  1308  and the lateral regions  1310 ,  1312  may include curved and/or straight portions that gradually slope downward from the center region  1306 . The skirt  1302  may be curved at or near the center region  1306  and then slope linearly downward at the forward region  1308  and the lateral regions  1310 ,  1312 . The downward straight sloped portions of the forward region  1308  and the lateral regions  1310 ,  1312  may be as described herein, for example the angles A, B and C of the cover  1200  shown in  FIGS.  12 E and  12 G . 
     In some embodiments, the cover  1300  may have an overall length of about 10″ (inches) from the rear edge  1301  to the forward-most portion of the forward edge  1303  of the skirt  1302 , for example as measured from right to left as oriented in  FIG.  13 C . The length may be 6″, 8″, 10″ 12″, 14″, about 6″, about 8″, about 10″ about 12″, about 14″, from about 8″ to about 12″, from about 6″ to about 14″, or other sizes. The cover  1300  may have an overall width of about 16″ (inches) from an outer-most edge of the first lateral region  1310  to an outer-most edge of the second lateral region  1312  of the skirt  1302 , for example as measured from right to left as oriented in  FIG.  13 D . The width may be 12″, 14″, 16″, 18″, about 12″, about 14″, about 16″, about 18″, about 20″, from about 12″ to about 20″ from about 14″ to about 18″, or other sizes. The cover  1300  may have an overall height of about 6″ or about 6.25″ (inches) from the lower surfaces  1316  to an upper edge  1314  of the dome  1304 , for example as measured from bottom to top as oriented in  FIG.  13 B . The height may be 4″, 5″, 6″, 8″, 10″, about 4″, about 5″, about 6″, about 8″, about 10″, from about 4″ to about 10″, from about 5″ to about 8″, or other sizes. 
     A series of first openings  1307  may extend along part of the central region  1306  and portions of the first and second lateral regions  1310 ,  1312 . The openings  1307  may be elongated and extend away from the dome  1304 . The openings  1307  may be elongated slots configured to allow liquid to drain through but prevent passage of debris. The openings  1307  may have other orientations, sizes and/or shapes. 
     A series of second openings  1311  may extend along the first lateral region  1310 . A series of third openings  1313  may extend along the second lateral region  1312 . The openings  1311 ,  1313  may extend laterally along the respective portions. The openings  1311 ,  1313  may be elongated slots of decreasing length from the rear to the front configured to allow liquid to drain through but prevent passage of debris. The openings  1311 ,  1313  may have other orientations, sizes and/or shapes. 
     A series of fourth openings  1309  may extend along the forward region  1308 . The openings  1309  may be elongated slots extending forward and having a decreasing length form the center of the skirt  1302  outward. The openings  1309  may be configured to allow liquid to drain through but prevent passage of debris. The openings  1309  may have other orientations, sizes and/or shapes. 
     A series of fourth openings  1305  may extend along the dome  1304 . The openings  1305  may be elongated slots that extend vertically as shown. The openings  1305  may be configured to allow liquid to drain through but prevent passage of debris. The openings  1305  may have other orientations, sizes and/or shapes. 
     For clarity, only some of the openings  1305 ,  1307 ,  1311 ,  1313  are labeled in the figures. The various openings may have a width from about 1/16″ (inches) to about ¾″, from about ⅛″ to about ½″, from about ⅛″ to about ¾″ about 1/16″, about ⅛″, about ¼″, about ½″, about ¾″, or other sizes. There may be various other openings in the skirt  1302  and dome  1304 , such as circular openings, etc. as shown in the figures. 
     The skirt  1302  includes a straight rear edge  1301  and a rounded forward edge  1303 . The planform of the skirt  1302  may be a semi-circular or “U” shape as viewed from the top (shown in  FIG.  13 D ). The skirt  1302  includes a series of lower surfaces  1316  on an underside thereof. The surfaces  1316  rest near the ground next to the scupper drain. The surfaces  1316  may define spaces  1317  therebetween through which fluid can flow but debris cannot. The spaces  1317  may be laterally formed in an outward-facing edge of the forward edge  1303 . The spaces  1317  may be located and spaced along the entire forward edge along the skirt  1302 . The surfaces  1316  may rest on an attachment used to secure the cover  1300  to the ground. The skirt  1302  may have a series of attachment openings  1320  located at outer edges thereof through which fasteners or other attachments may be inserted to secure the cover  1300 . 
     The dome  1304  extends upward from the rear edge of the skirt  1302 . The dome  1304  may have a rectangular planform as viewed from the front or rear, as shown in  FIGS.  13 B and  13 E . The dome  1304  may have square, circular, rounded, segmented, or other planform shapes. The dome  1304  may include first and second lateral edges  1315  extending upwardly from the first and second lateral regions  1310 ,  1312  of the skirt  1302 . The first and second lateral edges  1315  may extend upwardly from straight or curved portions of the skirt  1302 . The first and second lateral edges  1315  may extend to an upper edge  1314  of the dome  1304 . The upper edge  1314  may extend laterally connecting the first and second lateral edges  1315 . The openings  1305  may extend up to or near the upper edge  1314  and down to or near the rear portion of the skirt  1302 . The dome  1304  may include a series of attachment openings  1322  extending therethrough to secure the dome  1304  to a sidewall surrounding a scupper drain hole (not shown). Fasteners or other attachments may be extended through the openings  1322  to secure the dome  1304 . 
     The dome  1304  may be a vertical wall. The dome  1304  may be a vertical, flat structure having a thickness. The thickness of the dome  1304  may be about 0.12″. The thickness may be 0.08″, 0.10″, 0.12″, 0.14″, 0.16″, about 0.08″, about 0.10″, about 0.12″, about 0.14″, about 0.16″, from about 0.08″ to about 0.16″, from about 0.10″ to about 0.14″, or other sizes. The dome  1304  may extend from the lower portion  1318  that connects to the rear edge  1301  of the skirt  1302  to the upper edge  1314 . A vertical central axis may be defined by the dome  1304  and extend vertically through a center of the dome  1304 , as shown in  FIGS.  13 B and  13 D . Geometric reference angles A, B, and C are shown in  FIGS.  13 C and  13 E  between, respectively, the forward region  1308 , the second lateral region  1312 , and the first lateral region  1310 , and the portion of the axis that extends below the skirt  1302 . The description of the angles A, B and C as described herein with respect to the cover  100  and  1200  apply equally to the angles A, B and C of the cover  1300  as measured to a portion of the axis that extends below the skirt  1302  as shown in  FIGS.  13 C and  13 E . 
     Further, the forward edge  1303  may have a portion located a perpendicular distance R 2  from the central axis. R 2  may be a maximum distance of the forward edge  1303  from the axis. The description of the distance R 2  as described herein with respect to the cover  100  and  1200  apply equally to the distance R 2  of the cover  1300  as shown in  FIG.  13 D . In some embodiments, the distance R 2  may be greater than the overall height of the cover  1300 . The distance R 2  may be greater than 1.2, greater than 1.5, greater then 1.75, greater than 2, greater than 2.25, greater than 2.5, greater than 2.75, greater than 3, greater than 3.5, or greater than 4 times the overall height of the cover  1300 . The overall height of the cover  1300  may be measured as described herein, for example from the bottom surfaces  1316  to the upper edge  1314  of the dome  1304 . 
     The following are numbered example embodiments (NEE): 
     NEE1. A cover for a drain, the cover comprising: a dome having an arcuate sidewall with a lower portion, wherein the sidewall defines a central axis and forms a plurality of first openings extending through the sidewall, and wherein at least a portion of the lower portion is located a perpendicular distance R 1  from the central axis; and an arcuate skirt coupled with the lower portion of the sidewall and having an outer edge, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the central axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the central axis that extends below the skirt, wherein the skirt forms a plurality of second openings extending through the skirt, and wherein at least a portion of the outer edge of the skirt is located a perpendicular distance R 2  from the central axis, and wherein R 2  is at least twice R 1 . 
     NEE 2. The cover of NEE 1, wherein R 2 ≥2.25×R 1 . 
     NEE 3. The cover of NEE 2, wherein R 2 ≥2.5×R 1 . 
     NEE 4. The cover of NEE 3, wherein R 2 ≥2.75×R 1 . 
     NEE 5. The cover of NEE 4, wherein R 2 ≥3×R 1 . 
     NEE 6. The cover of NEE 1, wherein the acute angle A is greater than or equal to sixty degrees. 
     NEE 7. The cover of NEE 6, wherein the acute angle A is greater than or equal to sixty-five degrees. 
     NEE 8. The cover of NEE 7, wherein the acute angle A is greater than or equal to seventy degrees. 
     NEE 9. The cover of NEE 8, wherein the acute angle A is greater than or equal to seventy-five degrees. 
     NEE 10. The cover of NEE 9, wherein the acute angle A is greater than or equal to eighty degrees. 
     NEE 11. The cover of NEE 10, wherein the acute angle A is greater than or equal to eighty-five degrees. 
     NEE 12. The cover of NEE 11, wherein R 2 ≥2.25×R 1 . 
     NEE 13. The cover of NEE 12, wherein R 2 ≥2.5×R 1 . 
     NEE 14. The cover of NEE 13, wherein R 2 ≥2.75×R 1 . 
     NEE 15. The cover of NEE 14, wherein R 2 ≥3×R 1 . 
     NEE 16. The cover of NEE 1, wherein the dome and skirt are swept out arcuately 360 degrees about the central axis. 
     NEE 17. The cover of NEE 16, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly 360 degrees about the central axis. 
     NEE 18. The cover of NEE 1, wherein the dome and skirt are swept out arcuately less than 360 degrees about the central axis. 
     NEE 19. The cover of NEE 18, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than 360 degrees about the central axis. 
     NEE 20. The cover of NEE 18, wherein the dome and skirt are swept out arcuately less than or equal to 180 degrees about the central axis. 
     NEE 21. The cover of NEE 20, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than or equal to 180 degrees about the central axis. 
     NEE 22. The cover of NEE 1, the skirt further comprising a plurality of elongated lower ribs, wherein the plurality of elongated lower ribs define the plurality of second openings extending through the skirt. 
     NEE 23. The cover of NEE 22, wherein each of the plurality of elongated lower ribs has a first end and a second end that is opposite the first end, wherein the first end is coupled with the lower portion of the dome and the second end is coupled with the outer edge of the skirt. 
     NEE 24. The cover of NEE 23, wherein the plurality of elongated lower ribs extend generally along the first direction. 
     NEE 25. The cover of NEE 24, wherein the plurality of elongated lower ribs are oriented generally radially with respect to the central axis. 
     NEE 26. The cover of NEE 25, wherein R 2 ≥2.25×R 1 . 
     NEE 27. The cover of NEE 26, wherein R 2 ≥2.5×R 1 . 
     NEE 28. The cover of NEE 27, wherein R 2 ≥2.75×R 1 . 
     NEE 29. The cover of NEE 28, wherein R 2 ≥3×R 1 . 
     NEE 30. The cover of NEE 25, wherein the dome and skirt are swept out arcuately 360 degrees about the central axis. 
     NEE 31. The cover of NEE 30, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly 360 degrees about the central axis. 
     NEE 32. The cover of NEE 25, wherein the dome and skirt are swept out arcuately less than 360 degrees about the central axis. 
     NEE 33. The cover of NEE 32, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than 360 degrees about the central axis. 
     NEE 34. The cover of NEE 25, wherein the dome and skirt are swept out arcuately less than or equal to 180 degrees about the central axis. 
     NEE 35. The cover of NEE 34, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than or equal to 180 degrees about the central axis. 
     NEE 36. The cover of NEE 25, wherein the acute angle A is greater than or equal to sixty degrees. 
     NEE 37. The cover of NEE 36, wherein the acute angle A is greater than or equal to sixty-five degrees. 
     NEE 38. The cover of NEE 37, wherein the acute angle A is greater than or equal to seventy degrees. 
     NEE 39. The cover of NEE 38, wherein the acute angle A is greater than or equal to seventy-five degrees. 
     NEE 40. The cover of NEE 39, wherein the acute angle A is greater than or equal to eighty degrees. 
     NEE 41. The cover of NEE 40, wherein the acute angle A is greater than or equal to eighty-five degrees. 
     NEE 42. The cover of NEE 1, wherein the dome extends upward from the lower portion to a top portion of the dome in a second direction that is generally away from the skirt. 
     NEE 43. The cover of NEE 42, wherein the second direction is parallel with the axis. 
     NEE 44. The cover of NEE 42, wherein the dome also extends inward from the lower portion to the top portion of the dome in the second direction, wherein the second direction is also generally toward the central axis. 
     NEE 45. The cover of NEE 44, wherein the second direction forms an acute angle B with a portion of the central axis that extends above the dome. 
     NEE 46. The cover of NEE 45, wherein R 2 ≥2.25×R 1 . 
     NEE 47. The cover of NEE 46, wherein R 2 ≥2.5×R 1 . 
     NEE 48. The cover of NEE 47, wherein R 2 ≥2.75×R 1 . 
     NEE 49. The cover of NEE 48, wherein R 2 ≥3×R 1 . 
     NEE 50. The cover of NEE 45, wherein the dome and skirt are swept out arcuately 360 degrees about the central axis. 
     NEE 51. The cover of NEE 50, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly 360 degrees about the central axis. 
     NEE 52. The cover of NEE 45, wherein the dome and skirt are swept out arcuately less than 360 degrees about the central axis. 
     NEE 53. The cover of NEE 52, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than 360 degrees about the central axis. 
     NEE 54. The cover of NEE 45, wherein the dome and skirt are swept out arcuately less than or equal to 180 degrees about the central axis. 
     NEE 55. The cover of NEE 54, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than or equal to 180 degrees about the central axis. 
     NEE 56. The cover of NEE 45, wherein the acute angle B is less than or equal to thirty degrees. 
     NEE 57. The cover of NEE 56, wherein the acute angle B is less than or equal to twenty-five degrees. 
     NEE 58. The cover of NEE 57, wherein the acute angle B is less than or equal to twenty degrees. 
     NEE 59. The cover of NEE 58, wherein the acute angle B is less than or equal to fifteen degrees. 
     NEE 60. The cover of NEE 59, wherein the acute angle B is less than or equal to ten degrees. 
     NEE 61. The cover of NEE 60, wherein the acute angle B is less than or equal to five degrees. 
     NEE 62. The cover of NEE 42, the dome further comprising a plurality of elongated upper ribs, wherein the plurality of elongated upper ribs define the plurality of first openings extending through the sidewall. 
     NEE 63. The cover of NEE 62, wherein each of the plurality of elongated upper ribs has a first end and a second end that is opposite the first end, wherein the first end is coupled with the lower portion of the dome and the second end is coupled with a top portion of the dome. 
     NEE 64. The cover of NEE 63, wherein the plurality of elongated upper ribs extend generally along the second direction. 
     NEE 65. The cover of NEE 64, wherein the second direction is parallel with the central axis. 
     NEE 66. The cover of NEE 64, wherein the dome also extends inward from the lower portion to the top portion of the dome in the second direction, wherein the second direction is also generally toward the central axis. 
     NEE 67. The cover of NEE 66, wherein the second direction forms an acute angle B with a portion of the central axis that extends above the dome. 
     NEE 68. The cover of NEE 67, wherein R 2 ≥2.25×R 1 . 
     NEE 69. The cover of NEE 68, wherein R 2 ≥2.5×R 1 . 
     NEE 70. The cover of NEE 69, wherein R 2 ≥2.75×R 1 . 
     NEE 71. The cover of NEE 70, wherein R 2 ≥3×R 1 . 
     NEE 72. The cover of NEE 67, wherein the dome and skirt are swept out arcuately 360 degrees about the central axis. 
     NEE 73. The cover of NEE 72, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly 360 degrees about the central axis. 
     NEE 74. The cover of NEE 67, wherein the dome and skirt are swept out arcuately less than 360 degrees about the central axis. 
     NEE 75. The cover of NEE 74, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than 360 degrees about the central axis. 
     NEE 76. The cover of NEE 74, wherein the dome and skirt are swept out arcuately less than or equal to 180 degrees about the central axis. 
     NEE 77. The cover of NEE 76, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the dome and skirt are swept out circularly less than or equal to 180 degrees about the central axis. 
     NEE 78. The cover of NEE 67, wherein the acute angle B is less than or equal to thirty degrees. 
     NEE 79. The cover of NEE 78, wherein the acute angle B is less than or equal to twenty-five degrees. 
     NEE 80. The cover of NEE 79, wherein the acute angle B is less than or equal to twenty degrees. 
     NEE 81. The cover of NEE 80, wherein the acute angle B is less than or equal to fifteen degrees. 
     NEE 82. The cover of NEE 81, wherein the acute angle B is less than or equal to ten degrees. 
     NEE 83. The cover of NEE 82, wherein the acute angle B is less than or equal to five degrees. 
     NEE 84. The cover of NEE 67, the dome and skirt are swept out arcuately 360 degrees about the central axis and the cover is configured to couple with a mounting surface adjacent a drain of the mounting surface. 
     NEE 85. The cover of NEE 84, wherein the mounting surface comprises a roof. 
     NEE 86. The cover of NEE 67, wherein the dome and skirt are swept out arcuately less than 360 degrees about the central axis in respective sections defining first and second mating surfaces on first and second ends respectively of the swept out sections, the first and second mating surfaces shaped to complement an external structure adjacent the mounting surface. 
     NEE 87. The cover of NEE 86, wherein the external mounting structure is a wall intersecting the mounting surface and having a drain therein configured to be covered by the cover. 
     NEE 88. The cover of NEE 86, wherein the first mating surface forms a first contour that is substantially planar, and wherein the second mating surface forms a second contour that is substantially planar. 
     NEE 89. The cover of NEE 88, wherein the first and second contours are substantially coplanar. 
     NEE 90. The cover of NEE 88, wherein the first and second contours are substantially non coplanar. 
     NEE 91. The cover of NEE 86, wherein the first mating surface forms a first contour that is substantially non planar. 
     NEE 92. The cover of NEE 86, wherein the second mating surface forms a second contour that is substantially non planar. 
     NEE 93. The cover of NEE 1, further comprising an arcuate outer ring configured to couple with the outer edge of the skirt, and to at least partially cover the outer edge when coupled thereto. 
     NEE 94. The cover of NEE 93, the arcuate outer ring further comprising a plurality of openings extending through the arcuate outer ring and configured to allow fluid passage through the openings. 
     NEE 95. The cover of NEE 94, wherein at least one of the plurality of openings of the arcuate outer ring is further configured to be in fluid communication with at least one of the plurality of lower spaces of the skirt when the arcuate outer ring is coupled with the skirt. 
     NEE 96. The cover of NEE 95, wherein the arcuate outer ring is coupled with the outer edge of the skirt. 
     NEE 97. The cover of NEE 93, further comprising an arcuate mount configured to couple with the cover and with a mounting surface adjacent a drain. 
     NEE 98. The cover of NEE 97, the arcuate mount comprising an arcuate foundation having a top side and a bottom side opposite the top side, the top side configured to face the cover and having a catch configured to couple with at least one projecting insert of the cover, the bottom side configured to face the mounting surface. 
     NEE 99. The cover of NEE 98, wherein the at least one projecting insert is on the outer ring such that the mount couples with the outer ring. 
     NEE 100. The cover of NEE 98, wherein the at least one projecting insert is on the skirt such that the mount couples with the skirt. 
     NEE 101. The cover of NEE 99, wherein the at least one projecting insert is on the outer edge of the skirt. 
     NEE 102. The cover of NEE 98, wherein the catch of the arcuate mount is a nub and includes an opening therein, the opening configured to receive and releasably snap therein the projecting insert. 
     NEE 103. The cover of NEE 98, wherein the catch is an arcuate outer lip extending along an outer perimeter of the arcuate foundation and configured to couple with the outer edge of the skirt. 
     NEE 104. The cover of NEE 103, the arcuate outer lip further configured to couple with the outer edge of the skirt by expanding to receive the outer edge therein and then contracting to secure the outer edge therein. 
     NEE 105. The cover of NEE 97, the arcuate mount further comprising a plurality of arcuate tabs coupled with the arcuate foundation and extending inward toward the central axis when coupled with the cover. 
     NEE 106. The cover of NEE 105, wherein the plurality of arcuate tabs are interspersed in between adjacent segments of the foundation. 
     NEE 107. The cover of NEE 106, wherein the plurality of arcuate tabs are interspersed in between adjacent segments of the foundation and having a gap therebetween to form a plurality of flex joints. 
     NEE 108. The cover of NEE 107, the plurality of arcuate tabs having openings therethrough configured to receive a fastener therein to secure the arcuate mount to the mounting surface. 
     NEE 109. The cover of NEE 108, wherein the skirt, the dome, the outer ring and the mount are swept out arcuately 360 degrees about the central axis. 
     NEE 110. The cover of NEE 109, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein skirt, the dome, the outer ring and the mount are swept out circularly 360 degrees about the central axis. 
     NEE 111. The cover of NEE 108, wherein the skirt, the dome, the outer ring and the mount are swept out arcuately less than 360 degrees about the central axis. 
     NEE 112. The cover of NEE 111, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the skirt, the dome, the outer ring and the mount are swept out circularly less than 360 degrees about the central axis. 
     NEE 113. The cover of NEE 111, wherein the dome and skirt are swept out arcuately less than or equal to 180 degrees about the central axis. 
     NEE 114. The cover of NEE 113, wherein R 1  and R 2  are radii of the lower portion of the dome and of the outer edge of the skirt, respectively, and wherein the skirt, the dome, the outer ring and the mount are swept out circularly less than or equal to 180 degrees about the central axis. 
     NEE 115. The cover of NEE 1, the dome having a top portion defining a plurality of top spaces extending therethrough and configured to allow fluid to pass therethrough. 
     NEE 116. The cover of NEE 22, the dome further comprising a plurality of elongated upper ribs, and wherein each of the plurality of elongated upper ribs is coupled directly with one of the plurality of elongated lower ribs forming a continuous rib from the outer edge of the skirt to a top portion of the dome. 
     NEE 117. The cover of NEE 116, wherein each of the plurality of lower spaces is in direct fluid communication with one of the plurality of upper spaces forming a continuous space. 
     NEE 118. The cover of NEE 1, wherein the plurality of first openings of the dome are wider than the plurality of second openings of the skirt. 
     NEE 119. The cover of NEE 22, each of the plurality of elongated lower ribs further comprising: a first end having a first width; and a second end that is opposite the first end and having a second width, wherein the first end is connected to the lower portion of the dome and the second end is connected to the outer edge of the skirt. 
     NEE 120. The cover of NEE 119, wherein the first width is approximately equal to the second width. 
     NEE 121. The cover of NEE 119, wherein the first width is less than the second width. 
     NEE 122. The cover of NEE 121, each of the plurality of elongated lower ribs further comprising: a first side extending from the first end to the second end and defining a first plane; and a second side that is opposite the first side, the second side extending from the first end to the second end and defining a second plane, wherein the first and second planes are not parallel to each other. 
     NEE 123. The cover of NEE 122, wherein an acute angle between the first and second planes is less than or equal to fifteen degrees. 
     NEE 124. The cover of NEE 123, wherein the acute angle between the planes is less than or equal to ten degrees. 
     NEE 125. The cover of NEE 119, wherein the first width is greater than the second width. 
     NEE 126. The cover of NEE 1, the dome further comprising a removable lid at a top portion of the dome. 
     NEE 127. The cover of NEE 126, the lid comprising a handle projecting therefrom and configured to be grasped by a user to remove the lid from the top. 
     NEE 128. A cover for a drain, the cover comprising an arcuate lower portion defining a central vertical axis and comprising an arcuate outer perimeter defining a horizontal plane substantially orthogonal to the central axis and having at least one insert coupled with and projecting away from the arcuate outer perimeter; a plurality of elongated lower ribs connected to the arcuate outer perimeter and extending toward the central vertical axis at an acute angle A with respect to the horizontal plane, wherein A is less than or equal to thirty degrees; and a plurality of lower spaces extending through the arcuate lower portion and configured to allow fluid flow therethrough; an arcuate outer ring coupled to the arcuate outer perimeter of the arcuate lower portion and to at least partially cover the arcuate outer perimeter when coupled thereto; an arcuate mount comprising: an arcuate foundation having a top side and a bottom side opposite the top side, the top side configured to face the arcuate lower portion and having a catch configured to couple with the at least one projecting insert of the arcuate outer perimeter of the arcuate lower portion, the bottom side configured to couple with an external mounting structure; an arcuate upper portion comprising: a plurality of elongated upper ribs each having a first end and a second end opposite the first end, the first end coupled with the plurality of elongated lower ribs of the arcuate lower portion, and extending away from the arcuate lower portion at an angle B with respect to the central vertical axis; and a plurality of upper spaces in between and defined at least partially by the plurality of elongated upper ribs; and a top coupled with the second ends of the plurality of elongated upper ribs of the arcuate upper portion. 
     NEE 129. A method of coupling a cover for a drain to a mounting surface, the method comprising: coupling the cover to the mounting surface such that the cover at least partially surrounds the drain, wherein the drain has a half-width of R 1 , wherein the cover includes an arcuate dome defining a central axis and an arcuate skirt coupled with the dome and having an outer edge, wherein the skirt flares outward and downward from the dome to the outer edge in a first direction that is generally away from the central axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the central axis that extends below the skirt, wherein the skirt forms a plurality of openings extending through the skirt, and wherein the outer edge of the skirt is located a perpendicular distance R 2  from the axis, and wherein R 2  is at least twice R 1 . 
     NEE 130. A cover for a drain, the cover comprising: a dome having a sidewall with a lower portion, wherein the sidewall defines a central axis and forms a plurality of first openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis; and a skirt coupled with the lower portion of the sidewall and having an outer edge, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the central axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the central axis that extends below the skirt, wherein the skirt forms a plurality of second openings extending through the skirt, and wherein at least part of the outer edge of the skirt is located a perpendicular distance R 2  from the axis, and wherein R 2  is at least twice R 1 . 
     NEE 131. The cover of NEE 130, wherein the lower portion is located a minimum perpendicular distance R 1  from the axis, and wherein the outer edge of the skirt is located a minimum perpendicular distance R 2  from the axis. 
     NEE 132. The cover of NEE 130, wherein the skirt has a generally square planform. 
     NEE 133. A cover for a drain, wherein the drain has a drain body opening having a maximum width W, the cover comprising: a skirt having an outer edge, wherein the skirt forms a plurality of openings extending through the skirt, and wherein at least part of the outer edge of the skirt is located a perpendicular distance R 2  from a geometric center axis defined by the outer edge, and wherein R 2  is greater than or equal to W. 
     NEE 134. The cover of NEE 133, wherein R 2 ≥1.5×W. 
     NEE 135. The cover of NEE 134, wherein R 2 ≥2×W. 
     NEE 136. The cover of NEE 135, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 137. The cover of NEE 133, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 138. The cover of NEE 133, wherein W is less than or equal to 1 inch. 
     NEE 139. The cover of NEE 138, wherein R 2 ≥1.5×W. 
     NEE 140. The cover of NEE 139, wherein R 2 ≥2×W. 
     NEE 141. The cover of NEE 140, wherein R 2 ≥R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 142. The cover of NEE 138, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 143. The cover of NEE 133, wherein W is less than or equal to 1.5 inches. 
     NEE 144. The cover of NEE 143, wherein R 2 ≥1.5×W. 
     NEE 145. The cover of NEE 144, wherein R 2 ≥2×W. 
     NEE 146. The cover of NEE 145, wherein R 2 ≥R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 147. The cover of NEE 143, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 148. The cover of NEE 133, wherein W is less than or equal to 2 inches. 
     NEE 149. The cover of NEE 148, wherein R 2 ≥1.5×W. 
     NEE 150. The cover of NEE 149, wherein R 2 ≥2×W. 
     NEE 151. The cover of NEE 150, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 152. The cover of NEE 148, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 153. The cover of NEE 133, wherein W is less than or equal to 3 inches. 
     NEE 154. The cover of NEE 153, wherein R 2 ≥1.5×W. 
     NEE 155. The cover of NEE 154, wherein R 2 ≥2×W. 
     NEE 156. The cover of NEE 155, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 157. The cover of NEE 153, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 158. The cover of NEE 133, wherein W is less than or equal to 4 inches. 
     NEE 159. The cover of NEE 148, wherein R 2 ≥1.5×W. 
     NEE 160. The cover of NEE 149, wherein R 2 ≥2×W. 
     NEE 161. The cover of NEE 150, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 162. The cover of NEE 158, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 163. The cover of NEE 133, wherein W is less than or equal to 5 inches. 
     NEE 164. The cover of NEE 163, wherein R 2 ≥1.5×W. 
     NEE 165. The cover of NEE 164, wherein R 2 ≥2×W. 
     NEE 166. The cover of NEE 165, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 167. The cover of NEE 163, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 168. The cover of NEE 133, wherein W is less than or equal to 6 inches. 
     NEE 169. The cover of NEE 168, wherein R 2 ≥1.5×W. 
     NEE 170. The cover of NEE 169, wherein R 2 ≥2×W. 
     NEE 171. The cover of NEE 170, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 172. The cover of NEE 168, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein the skirt flares outward and downward from the lower portion to the outer edge in a first direction that is generally away from the axis and generally away from the dome, wherein the first direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 173. The cover of NEE 133 further comprising a mount configured to couple with the cover and with a mounting surface adjacent the drain. 
     NEE 174. A mount for coupling a drain cover with a mounting surface adjacent a drain, the mount configured to couple with the cover and with the mounting surface adjacent the drain. 
     NEE 175. The mount of NEE 174, wherein the drain has a drain body opening having a maximum width W, wherein the mount has a width R 3 , and wherein R 3  is at least twice W. 
     NEE 176. The mount of NEE 175, wherein R 3 ≥3×W. 
     NEE 177. The mount of NEE 176, wherein R 3 ≥4×W. 
     NEE 178. The mount of NEE 177, wherein R 3 ≥5×W. 
     NEE 179. The mount of NEE 174, further comprising a foundation having a top side and a bottom side opposite the top side, the top side configured to face the cover and having a protrusion configured to be received through a flexible opening of the cover, the bottom side configured to face the mounting surface. 
     NEE 180. The mount of NEE 179, wherein the protrusion at least partially extends through the flexible opening when the mount is coupled with the cover. 
     NEE 181. The mount of NEE 179, wherein the protrusion comprises an extended section coupled with a ball catch on the end of the extended section. 
     NEE 182. The mount of NEE 181, wherein the extended section at least partially extends through the flexible opening when the mount is coupled with the cover, and wherein the ball catch is adjacent the top side of the foundation when the mount is coupled with the cover. 
     NEE 183. The mount of NEE 179, wherein the foundation is arcuate. 
     NEE 184. The mount of NEE 181, wherein the foundation is arcuate. 
     NEE 185. The mount of NEE 182, wherein the drain has a drain body opening having a maximum width W, wherein the mount has a width R 3 , and wherein R 3  is at least twice W. 
     NEE 186. The mount of NEE 185, wherein R 3 ≥3×W. 
     NEE 187. The mount of NEE 186, wherein R 3 ≥4×W. 
     NEE 188. The mount of NEE 187, wherein R 3 ≥5×W. 
     NEE 189. The mount of NEE 179, the arcuate mount further comprising a plurality of inwardly extending tabs coupled with the foundation. 
     NEE 190. The mount of NEE 189, wherein the plurality of tabs are interspersed in between adjacent segments of the foundation. 
     NEE 191. The mount of NEE 190, wherein the plurality of tabs are interspersed in between adjacent segments of the foundation and having a gap therebetween to form a plurality of flex joints. 
     NEE 192. The mount of NEE 189, the plurality of tabs having openings therethrough configured to receive a fastener therein to secure the mount to the mounting surface. 
     NEE 193. The mount of NEE 189, wherein the foundation is arcuate. 
     NEE 194. The mount of NEE 193, wherein the plurality of tabs are arcuate. 
     NEE 195. The mount of NEE 174, wherein the mount is configured to adhere to the mounting surface. 
     NEE 196. The mount of NEE 174, wherein the mount is configured to fasten to the mounting surface. 
     NEE 197. The mount of NEE 179, wherein the mount is configured to adhere to the mounting surface. 
     NEE 198. The mount of NEE 179, wherein the mount is configured to fasten to the mounting surface. 
     NEE 199. The mount of NEE 181, wherein the mount is configured to adhere to the mounting surface. 
     NEE 200. The mount of NEE 181, wherein the mount is configured to fasten to the mounting surface. 
     NEE 201. The mount of NEE 182, wherein the mount is configured to adhere to the mounting surface. 
     NEE 202. The mount of NEE 182, wherein the mount is configured to fasten to the mounting surface. 
     NEE 203. A pipe stem for connecting a drain cover with a drain body, the pipe stem comprising a sidewall defining a channel therethrough and having a first end and a bottom end; a plurality of openings formed in the sidewall configured to allow fluid to pass therethrough and into the channel, wherein the first end is configured to couple with the drain cover, and wherein the second end is configured to couple with the drain body. 
     NEE 204. The pipe stem of NEE 203, wherein the second end is configured to snap fit to the drain body. 
     NEE 205. The pipe stem of NEE 203, wherein the second end is configured to interference fit with the drain body. 
     NEE 206. The pipe stem of NEE 203, wherein the second end comprises threads and is configured to screw to the drain body. 
     NEE 207. The pipe stem of NEE 203, further comprising a clip configured to couple the second end of the pipe stem to the drain body. 
     NEE 208. The pipe stem of NEE 203, wherein the plurality of openings extend longitudinally between the first and second ends. 
     NEE 209. The pipe stem of NEE 203, wherein the sidewall is arcuate. 
     NEE 210. The pipe stem of NEE 209, wherein the sidewall is circular. 
     NEE 211. The pipe stem of NEE 203, wherein the sidewall is metallic. 
     NEE 212. The pipe stem of NEE 203, wherein the sidewall is plastic. 
     NEE 213. The pipe stem of NEE 203, wherein the sidewall is a polymer. 
     NEE 214. The pipe stem of NEE 203, wherein the sidewall is circular. 
     NEE 215. The cover of NEE 133, wherein the skirt comprises a plurality of levels including at least a top level and a bottom level located generally lower than the top level, and wherein adjacent levels are coupled to each other by a connecting sidewall having a plurality of openings therethough. 
     NEE 216. The cover of NEE 215, wherein the bottom level comprises the outer edge. 
     NEE 217. The cover of NEE 215, further comprising at least one intermediate level located in between the top and bottom levels, wherein a first connecting sidewall couples the bottom level with the intermediate level, and wherein a second connecting sidewall couples the intermediate level with the top level. 
     NEE 218. The cover of NEE 215, further comprising at least a first and second intermediate level located in between the top and bottom levels, wherein a first connecting sidewall couples the bottom level with the first intermediate level, wherein a second connecting sidewall couples the first intermediate level with the second intermediate level, and wherein a third connecting sidewall couples the second intermediate level with the top level. 
     NEE 219. The cover of NEE 215, wherein R 2 ≥1.5×W. 
     NEE 220. The cover of NEE 215, wherein R 2 ≥2×W. 
     NEE 221. The cover of NEE 215, wherein R 2 ≥3×W or wherein R 2 ≥4×W or wherein R 2 ≥5×W. 
     NEE 222. The cover of NEE 215, further comprising a dome having a sidewall with a lower portion, wherein the lower portion is coupled with the top level of the skirt, wherein the sidewall forms a plurality of openings extending through the sidewall, and wherein at least part of the lower portion is located a perpendicular distance R 1  from the axis, wherein each level of the skirt flares outward and downward in generally parallel directions, each direction being generally away from the axis and generally away from the dome, wherein each direction forms an acute angle A with a portion of the axis that extends below the skirt, and wherein R 2  is at least twice R 1 . 
     NEE 223. The cover of NEE 215, wherein W is less than or equal to 1 inch. 
     NEE 224. The cover of NEE 215, wherein W is less than or equal to 1.5 inches. 
     NEE 225. The cover of NEE 215, wherein W is less than or equal to 2 inches. 
     NEE 226. The cover of NEE 215, wherein W is less than or equal to 3 inches. 
     NEE 227. The cover of NEE 215, wherein W is less than or equal to 4 inches. 
     NEE 228. The cover of NEE 215, wherein W is less than or equal to 5 inches. 
     NEE 229. The cover of NEE 215, wherein W is less than or equal to 6 inches. 
     NEE 230. The cover of NEE 222, wherein W is less than or equal to 1 inches. 
     NEE 231. The cover of NEE 222, wherein W is less than or equal to 1.5 inches. 
     NEE 232. The cover of NEE 222, wherein W is less than or equal to 2 inches. 
     NEE 233. The cover of NEE 222, wherein W is less than or equal to 3 inches. 
     NEE 234. The cover of NEE 222, wherein W is less than or equal to 4 inches. 
     NEE 235. The cover of NEE 222, wherein W is less than or equal to 5 inches. 
     NEE 236. The cover of NEE 222, wherein W is less than or equal to 6 inches. 
     NEE 237. A cover for a drain, the cover comprising a skirt comprising a flat portion including a plurality of openings extending therethrough, the flat portion forming a plurality of grooves extending in a first direction and having an outer slot surrounding the flat portion on one or more sides of an outer region of the flat portion; and an angled portion including a plurality of openings extending therethrough, the angled portion coupled with at least part of the outer region of the flat portion and having an outer edge, wherein the angled portion flares outward and downward from the flat portion to the outer edge; and a dome configured to couple with the skirt, the dome comprising a first dome portion; and a second dome portion, wherein each dome portion comprises a sidewall with a lower portion, wherein each sidewall forms a plurality of openings extending through the sidewall, and wherein the first dome portion is configured to move relative to the second dome portion to position the dome on the skirt, and wherein the grooves and outer slot of the skirt are each configured to receive at least part of the lower portions of the first and second dome portions, such that the first and second dome portions can slide in the first direction. 
     NEE 238. The cover of NEE 237, wherein the grooves and outer slot of the skirt are each configured to receive at least part of the lower portions of the first and second dome portions, such that the first and second dome portions can slide in a second direction that is perpendicular to the first direction. 
     NEE 239. The cover of NEE 237, wherein each sidewall of the first and second dome portions includes complementary fingers extending towards each other and configured to slide past each other when the first and second dome portions are positioned on the skirt. 
     NEE 240. The cover of NEE 237, wherein the skirt has a generally rectangular planform. 
     NEE 241. The cover of NEE 237, wherein the outer edge of the skirt is generally rectangular. 
     NEE 242. The cover of NEE 237, wherein the flat portion of the skirt is generally rectangular. 
     NEE 243. The cover of NEE 237, wherein the skirt defines a geometric center axis that is perpendicular to the flat portion of the skirt, wherein at least part of the angled portion of the skirt flares outward and downward from the outer region of the flat portion to the outer edge in a first direction that is generally away from the axis and generally away from the flat portion, and wherein the first direction forms an acute angle A with a portion of the axis that extends below the flat portion. 
     NEE 244. The cover of NEE 243, wherein the angled portion includes a first, second and third angled sub-portion, wherein the first angled sub-portion is oriented angularly 90 degrees with respect to the second angled sub-portion, and wherein the second angled sub-portion is oriented angularly 90 degrees with respect to the third angled sub-portion. 
     NEE 245. The cover of NEE 243, wherein the drain is a scupper having an opening with a maximum width W, wherein the grooves and outer slot of the skirt are each configured to receive at least part of the lower portions of the first and second dome portions, wherein the first and second dome portions can slide in a second direction that is perpendicular to the first direction. 
     NEE 246. The cover of NEE 245, wherein the first and second dome portions can slide in the second direction so that a maximum distance between outermost parts of the first and second dome portions is less than or equal to W. 
     NEE 257. The cover of NEE 245, wherein the first and second dome portions can slide in the second direction so that a maximum distance between outermost parts of the first and second dome portions is greater than W. 
     While there has been illustrated and described what are presently considered to be example embodiments, it will be understood by those skilled in the art that various other modifications may be made, and equivalents may be substituted, without departing from claimed subject matter. Additionally, many modifications may be made to adapt a particular situation to the teachings of claimed subject matter without departing from the central concept described herein. Therefore, it is intended that claimed subject matter not be limited to the particular embodiments disclosed, but that such claimed subject matter may also include all embodiments falling within the scope of the appended claims, and equivalents thereof. 
     It is contemplated that various combinations or subcombinations of the specific features and aspects of the embodiments disclosed above may be made and still fall within one or more of the inventions. Further, the disclosure herein of any particular feature, aspect, method, property, characteristic, quality, attribute, element, or the like in connection with an embodiment may be used in all other embodiments set forth herein. Accordingly, it should be understood that various features and aspects of the disclosed embodiments can be combined with or substituted for one another in order to form varying modes of the disclosed inventions. Thus, it is intended that the scope of the present inventions herein disclosed should not be limited by the particular disclosed embodiments described above. Moreover, while the inventions are susceptible to various modifications, and alternative forms, specific examples thereof have been shown in the drawings and are herein described in detail. It should be understood, however, that the inventions are not to be limited to the particular forms or methods disclosed, but to the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the various embodiments described and the appended claims. Any methods disclosed herein need not be performed in the order recited. 
     The ranges disclosed herein also encompass any and all overlap, sub-ranges, and combinations thereof. Language such as “up to,” “at least,” “greater than,” “less than,” “between,” and the like includes the number recited. Numbers preceded by a term such as “approximately”, “about”, “up to about,” and “substantially” as used herein include the recited numbers, and also represent an amount or characteristic close to the stated amount or characteristic that still performs a desired function or achieves a desired result. For example, the terms “approximately”, “about”, and “substantially” may refer to an amount that is within less than 10% of, within less than 5% of, within less than 1% of, within less than 0.1% of, and within less than 0.01% of the stated amount or characteristic. Features of embodiments disclosed herein preceded by a term such as “approximately”, “about”, and “substantially” as used herein represent the feature with some variability that still performs a desired function or achieves a desired result for that feature. 
     With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity. 
     It will be understood by those within the art that, in general, terms used herein, are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced embodiment recitation is intended, such an intent will be explicitly recited in the embodiment, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the disclosure may contain usage of the introductory phrases “at least one” and “one or more” to introduce embodiment recitations. However, the use of such phrases should not be construed to imply that the introduction of an embodiment recitation by the indefinite articles “a” or “an” limits any particular embodiment containing such introduced embodiment recitation to embodiments containing only one such recitation, even when the same embodiment includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce embodiment recitations. In addition, even if a specific number of an introduced embodiment recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, embodiments, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.” 
     Although the present subject matter has been described herein in terms of certain embodiments, and certain exemplary methods, it is to be understood that the scope of the subject matter is not to be limited thereby. Instead, the Applicant intends that variations on the methods and materials disclosed herein which are apparent to those of skill in the art will fall within the scope of the disclosed subject matter.