Patent Publication Number: US-2021161293-A1

Title: Storage system

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation-in-part of U.S. patent application Ser. No. 15/903,131, filed Feb. 23, 2018, which claims priority to U.S. Provisional Patent Application Ser. No. 62/462,534, filed Feb. 23, 2017, and U.S. Provisional Patent Application Ser. No. 62/462,538, filed Feb. 23, 2017, the entireties of which are incorporated herein by reference. 
    
    
     BACKGROUND 
     Hanging articles from a wall in a home can be an arduous task requiring multiple people to work together in order to ensure that the item is hung in a level and secure manner. Even using the utmost care, such articles are frequently hung in a non-level manner, which is unappealing. This is true of hanging cabinetry such as kitchen cabinets and medicine-style cabinets and other heavy items. Furthermore, improvements in hanging even lightweight items such as frames and the like is desirable to ensure ease of installation and to ensure that the item is hung in a level manner and at the desired located on the wall surface. Using current systems, once an article is hung from a wall it can only be moved by physically taking the article down from the wall and reattaching it to a different part of the wall. This is undesirable as it results in additional holes in the wall that require patching and is time consuming. Thus, a need exists for an improved system for hanging such items. 
     BRIEF SUMMARY 
     The present invention is directed to a system and method for hanging an article from a support surface. The article may be a cabinet, such as a medicine cabinet or the like, although the system described herein may be used for hanging any type of article from a support surface such as a wall. The system uses a cam screw that is coupled to the support surface and a cam lock that is slidably coupled to the article to enable the article to move horizontally along the support surface. This allows for the article to be moved without separating it from the support surface if it is desired to move it slightly leftward or rightward for any purpose. 
     In one aspect, the invention may be a system for hanging an article from a support surface, the system comprising: an article comprising a top end having an elongated mounting element; at least one surface mounting element comprising a first portion and a second portion, the surface mounting element configured to be coupled to a support surface so that the second portion of the surface mounting element protrudes from the support surface; and at least one cam lock comprising a first portion that is slidably mounted to the elongated mounting element and a second portion, the cam lock alterable between: (1) a receiving state in which the second portion of the surface mounting element can be inserted into and removed from the second portion of the cam lock; and (2) a locked state in which the second portion of the surface mounting element is prohibited from being removed from the second portion of the cam lock. 
     In another aspect, the invention may be a system for hanging an article from a support surface, the system comprising: an article comprising a top end having a mounting channel extending along a channel axis; and at least one cam lock slidably coupled to the article, the cam lock comprising a first portion that is slidably mounted to the mounting channel of the article and a second portion that protrudes from the mounting channel of the article, the cam lock being movable within the mounting channel in a direction of the channel axis while remaining coupled to the article. 
     In yet another aspect, the invention may be a method of hanging an article from a support surface, the method comprising: a) providing an article comprising an elongated mounting element; b) coupling at least one surface mounting element to a support surface so that a portion of the surface mounting element protrudes from the support surface; c) slidably coupling a first portion of at least one cam lock to the elongated mounting element of the article; d) inserting the portion of the surface mounting element into a second portion of the cam lock; and e) rotating the cam lock into a locked state so that the portion of the surface mounting element is prohibited from being separated from the second portion of the cam lock. 
     In still another aspect, the invention may be a method of hanging an article from a support surface, the method comprising: a) providing an article comprising a mounting channel, the article extending from a bottom end to a top end along a longitudinal axis; b) coupling first and second cam screws to a support surface at the same elevation and in a horizontally spaced apart manner; c) positioning a first portion of a first cam lock and a first portion of a second cam lock in the mounting channel of the article on opposite sides of the longitudinal axis of the article, second portions of the first and second cam locks protruding from the mounting channel; and d) coupling portions of the first and second cam screws that protrude from the support surface to the second portions of the first and second cam locks, respectively, thereby mounting the article to the support surface. 
     In a further aspect, the invention may be a cam lock comprising: a main body comprising a top portion, a bottom portion, and a receiving cavity between the top and bottom portions; a stem extending from a bottom surface of the bottom portion of the main body; and a flange extending radially from the stem and being spaced apart from the bottom surface of the bottom portion of the main body by a gap. 
     In a still further aspect, the invention may be a cam lock comprising: a first portion having a top surface; a second portion having a bottom surface, the second portion comprising a cavity that is configured to receive a head portion and a neck portion of a surface mounting element to couple the cam lock to the surface mounting element; and a stem extending from the top surface of the first portion to the bottom surface of the second portion, the top surface of the first portion and the bottom surface of the second portion being spaced apart by a gap. 
     In another aspect, the invention may be a cam lock comprising: a main body extending along a longitudinal axis and comprising a lower cam surface and an upper cam surface, a cam slot defined between the lower and upper cam surfaces; the lower cam surface comprising a first portion, a second portion, and a ramp between the first and second portions, the second portion being raised relative to the first portion; and the upper cam surface comprising a protuberance extending into the cam slot, the protuberance being axially aligned with the first portion of the lower cam surface. 
     In still another aspect, the invention may be a cabinet comprising: a housing comprising a rear wall and a plurality of sidewalls extending from the rear wall, the rear wall and the plurality of sidewalls collectively defining a cavity having an opening; the plurality of sidewalls comprising a first inner sidewall and a second inner sidewall opposite the first inner sidewall, each of the first and second inner sidewalls having openings configured to receive shelf supports to support one or more shelves between the first and second inner sidewalls; a first outer sidewall adjacent to and spaced apart from the first inner sidewall; and a second outer sidewall adjacent to and spaced apart from the second inner sidewall. 
     In a further aspect, the invention may be a cabinet comprising: a housing comprising a rear wall and a plurality of sidewalls extending from the rear wall, the rear wall and the plurality of sidewalls collectively defining a cavity having an opening; the plurality of sidewalls comprising a first inner sidewall having an inner surface and an outer surface and a second inner sidewall having an inner surface and an outer surface, each of the first and second inner sidewalls having openings extending from the inner surface to the outer surface; a first outer sidewall spaced apart from the first inner sidewall so that a gap is formed between the outer surface of the first inner sidewall and an inner surface of the first outer sidewall, the first outer sidewall concealing the openings in the first inner sidewall; and a second outer sidewall spaced apart from the second inner sidewall so that a gap is formed between the outer surface of the second inner sidewall and an inner surface of the second outer sidewall, the second outer sidewall concealing the openings in the second inner sidewall. 
     In a still further aspect, the invention may be a cabinet comprising: a housing defining a cavity having an opening, the housing comprising a first sidewall and a second sidewall opposite the first sidewall; a first support member coupled to the first sidewall and a second support member coupled to the second sidewall, each of the first and second support members comprising a receiving slot; a support rod extending from a first end to a second end, the first end of the support rod positioned within the receiving slot of the first support member and the second end of the support rod positioned within the receiving slot of the second support member; at least one storage receptacle having a mounting element; and wherein the at least one storage receptacle is slidably mounted to the support rod by the mounting element of the storage receptacle. 
     In another aspect, the invention may be a cabinet comprising: a housing defining a cavity having an opening, the housing extending from a bottom end to a top end along a longitudinal axis; at least one support member coupled to the housing and at least partially positioned within the cavity; a support rod supported within the cavity by the at least one support member; and at least one storage receptacle slidably mounted to the support rod. 
     In yet another aspect, the invention may be a cabinet comprising: a housing defining a cavity having an opening, the housing comprising a first sidewall and a second sidewall opposite the first sidewall; a first shelf support coupled to the first sidewall, the first shelf support comprising a first ledge extending from the first sidewall into the cavity, the first ledge comprising a top surface and a bottom surface, a first engagement feature located on the bottom surface of the first ledge; a second shelf support coupled to the second sidewall, the second shelf support comprising a second ledge extending from the second sidewall into the cavity, the second ledge comprising a top surface and a bottom surface, a second engagement feature located on the bottom surface of the second ledge; a shelf comprising first and second tabs, a first receiving slot being formed between the bottom surface of the shelf and the first tab and a second receiving slot being formed between the bottom surface of the shelf of the second tab; and wherein the shelf is supported in the cavity by the first and second shelf supports so that: (1) the bottom surface of the shelf rests atop the top surface of the first and second ledges; (2) a portion of the first ledge that comprises the first engagement feature extends into the first receiving slot such that the first engagement feature of the first shelf support mates with a first engagement feature of the shelf; and (3) a portion of the second ledge that comprises the second engagement feature extends into the second receiving slot such that the second engagement feature of the second shelf support mates with a second engagement feature of the shelf. 
     In a further aspect, the invention may be a cabinet comprising: a housing defining a cavity; at least one shelf support coupled to the housing, the at least one shelf support comprising a ledge extending from the housing into the cavity, the ledge comprising a top surface and a bottom surface, at least one protrusion extending from the bottom surface of the ledge; a shelf comprising at least one tab such that a receiving slot is formed between a bottom surface of the shelf and the at least one tab; and wherein the shelf is supported in the cavity, at least in part, by the top surface of the ledge of the at least one shelf support, and wherein a portion of the ledge that comprises the at least one protrusion nests within the receiving slot of the shelf. 
     In another aspect, the invention may be a cabinet comprising: a housing defining a cavity; at least one shelf support coupled to the housing, the at least one shelf support comprising a ledge extending from the housing into the cavity; a shelf comprising a bottom surface and at least one tab, a receiving slot formed between the at least one tab and the bottom surface of the shelf; and wherein the shelf is supported in the cavity, at least in part, by the ledge of the at least one shelf support with a portion of the ledge nesting within the receiving slot of the shelf. 
     Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein: 
         FIG. 1  is a front perspective view of system for hanging an article from a support surface in accordance with an embodiment of the present invention, the system including an article, at least one cam screw, and at least one cam lock; 
         FIG. 2  is a front perspective view of the system of  FIG. 1  with a door in an open state; 
         FIG. 3A  is a close-up of area III of  FIG. 1 ; 
         FIG. 3B  is a close-up view of area III of  FIG. 1  in accordance with an alternative embodiment of the present invention; 
         FIGS. 4-7  are perspective, front, and side views of a cam lock of the system of  FIG. 1 ; 
         FIG. 8  is a cross-sectional view taken along line VIII-VIII in  FIG. 5 ; 
         FIG. 9A  is a partial top perspective view of the system of  FIG. 1  illustrating the cam lock being inserted into a mounting channel of the article; 
         FIG. 9B  is a partial top perspective view of an alternative embodiment of the system of  FIG. 1  illustrating the cam lock being inserted into the mounting channel of the article; 
         FIG. 10  is the partial top perspective view of the system of  FIG. 9A  illustrating the cam lock located within an entry section of the mounting channel of the article; 
         FIG. 11  is the partial top perspective view of the system of  FIG. 9A  illustrating the cam lock located within a nesting section of the mounting channel of the article; 
         FIG. 12  is a perspective view of a cam screw and a wall anchor of the system of  FIG. 1  being inserted into a support surface for hanging the article; 
         FIG. 13  is a perspective view of the cam screw and the wall anchor of  FIG. 12  coupled to the support surface; 
         FIG. 14  is a top perspective view of a portion of the system illustrating the cam locks slidably coupled to the mounting channel of the article and prepared for coupling to portions of the cam screws that are protruding from the support surface; 
         FIG. 15  is a top perspective view of a portion of the system illustrating the cam screw that is protruding from the wall being inserted into the cam locks that are coupled to the article; 
         FIG. 16  is a close-up view of area XVI of  FIG. 15  before the cam lock is tightened around the cam screw; 
         FIG. 17  is a close-up view of area XVI of  FIG. 15  after the cam lock is tightened around the cam screw; 
         FIG. 18  is a cross-sectional view taken along line XVIII-XVIII of  FIG. 17 ; 
         FIGS. 19A and 19B  illustrate the horizontal movement of the article while it remains hanging from a support surface; 
         FIGS. 20 and 21  are bottom perspective views of the system of  FIG. 1  illustrating a support bracket securing a bottom portion of the article to the support surface; 
         FIG. 22A  is a cross-sectional view taken along line XXII-XXII of  FIG. 21 ; 
         FIG. 22B  is a cross-sectional view taken along line XXII-XXII of  FIG. 21  in accordance with an alternative embodiment of the present invention; 
         FIGS. 23-26  illustrate a system for hanging an article from a support surface in accordance with an alternative embodiment of the present invention; 
         FIG. 27  is a front perspective view of a cabinet in accordance with an embodiment of the present invention; 
         FIG. 28  is a front perspective view of the cabinet of  FIG. 27  with a door of the cabinet in an open state; 
         FIG. 29  is an exploded front perspective view of the cabinet of  FIG. 27 ; 
         FIG. 30  is a rear perspective view of the cabinet of  FIG. 27 ; 
         FIG. 31  is a rear view of the cabinet of  FIG. 27 ; 
         FIG. 32  is a cross-sectional view taken along line XXXII-XXXII of  FIG. 31 ; 
         FIG. 33A  is a top perspective view of a shelf support of the cabinet of  FIG. 27 ; 
         FIG. 33B  is a bottom perspective view of the shelf support of  FIG. 33A ; 
         FIG. 34A  is a top perspective view of a shelf of the cabinet of  FIG. 27 ; 
         FIG. 34B  is a bottom perspective view of the shelf of  FIG. 34A ; 
         FIG. 34C  is a bottom view of the shelf of  FIG. 34A ; 
         FIG. 34D  is a rear view of the shelf of  FIG. 34A ; 
         FIG. 35  is a front bottom perspective view of the cabinet of  FIG. 27  with the door removed; 
         FIG. 36  is a cross-sectional view taken along line XXXVI-XXXVI of  FIG. 32  with a shelf support coupled to a housing of the cabinet and a shelf supported by the shelf support; 
         FIG. 37  is a front perspective view of a cabinet in accordance with yet another embodiment of the present invention; 
         FIG. 38  is a front view of the cabinet of  FIG. 37  with the door removed; 
         FIG. 39  is a front perspective view of a housing of the cabinet of  FIG. 37 ; 
         FIG. 40A  is a front top perspective view of one of the support members of the cabinet of  FIG. 37 ; and 
         FIG. 40B  is a rear top perspective view of the support member of  FIG. 40A ; 
         FIG. 41  is a front perspective view of the housing of the cabinet of  FIG. 39 , illustrating the manner of coupling the support members to the housing; 
         FIG. 42  is a front perspective view of the housing of the cabinet with two of the support members coupled to the housing, illustrating the manner of coupling a support rod to the support members; 
         FIG. 43  is a front perspective view of the housing of the cabinet with the support members and the support rod installed, illustrating the manner of mounting a storage receptacle to the support rod; 
         FIG. 44  is a front view of the cabinet of  FIG. 37  with the door removed illustrating the storage receptacle sliding along the support rod; 
         FIG. 45  is a cross-sectional view taken along line XLV-XLV of  FIG. 44 ; 
         FIG. 46  is a close-up view of area XLVI of  FIG. 45   
         FIG. 47  is a front perspective view of a cabinet in accordance with still another embodiment of the present invention; 
         FIGS. 48A and 48B  are front and rear perspective views of a storage receptacle shown in  FIG. 47 ; 
         FIGS. 49A and 49B  are front and rear perspective views of another storage receptacle shown in  FIG. 47 ; 
         FIGS. 50A and 50B  are front perspective views of yet another storage receptacle that is not shown but could be used with the cabinet of  FIG. 47 ; 
         FIGS. 51A and 51B  are front and rear perspective views of another storage receptacle shown in  FIG. 47 ; 
         FIG. 52  is a front perspective view of a storage system in accordance with an embodiment of the present invention; 
         FIG. 53  is an exploded front perspective view of the storage system of  FIG. 52 ; 
         FIG. 54  is a front view of the storage system of  FIG. 52 ; 
         FIG. 55  is a cross-sectional view taken along line LV-LV of  FIG. 54   
         FIG. 56  is a cross-sectional view taken along line LVI-LVI of  FIG. 54 ; 
         FIG. 57  is a perspective view of an end cap of the storage system of  FIG. 52 ; 
         FIG. 58  is another perspective view of the end cap of  FIG. 57 ; and 
         FIG. 59  is a cross-sectional view taken along line LIX-LIX of  FIG. 54 . 
     
    
    
     DETAILED DESCRIPTION 
     The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. 
     The description of illustrative embodiments according to principles of the present invention is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In the description of embodiments of the invention disclosed herein, any reference to direction or orientation is merely intended for convenience of description and is not intended in any way to limit the scope of the present invention. Relative terms such as “lower,” “upper,” “horizontal,” “vertical,” “above,” “below,” “up,” “down,” “top” and “bottom” as well as derivatives thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation unless explicitly indicated as such. Terms such as “attached,” “affixed,” “connected,” “coupled,” “interconnected,” and similar refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. Moreover, the features and benefits of the invention are illustrated by reference to the exemplified embodiments. Accordingly, the invention expressly should not be limited to such exemplary embodiments illustrating some possible non-limiting combination of features that may exist alone or in other combinations of features; the scope of the invention being defined by the claims appended hereto. 
     Referring to  FIGS. 1 and 2 , a system  1000  for hanging an article from a support surface is illustrated in accordance with an embodiment of the present invention. The system  1000  generally comprises an article  100  that is intended to be hung from a support surface and hardware  200  that is intended to facilitate the hanging of the article  100  from the support surface. In the exemplified embodiment, the hardware  200  comprises one or more cam locks  210  and one or more surface mounting elements  290 . In the exemplified embodiment, the surface mounting elements  290  comprise one or more cam screws  250  and one or more wall anchors  270 . However, the invention is not to be so limited and the surface mounting elements  290  may be nails, screws, clips, brackets, rings, clamps, pins, or any other device configured for mounting the article  100  from the support surface as described herein. In some embodiments, the surface mounting elements  290 , or parts thereof, are configured to interact with the cam locks  210 , to hang the article  100  from the support surface. Moreover, in some embodiments the hardware  200  may comprise cam screws  250  but the wall anchors  270  may be omitted, for example where the cam screw  250  is coupled to a stud within a wall and the additional support offered by the wall anchor  270  is not needed. 
     In the exemplified embodiment, the article  100  is a cabinet that is intended to be hung from an interior wall in a home or other building. More specifically, in the exemplified embodiment the article  100  is a medicine cabinet or the like that is intended to be hung in a bathroom to store items a person might need when in the bathroom. However, the invention is not to be so limited in all embodiments and the article  100  could alternatively be a kitchen cabinet, a household storage cabinet, or a non-cabinet type article such as a frame, a mirror, a poster or the like. In some embodiments, the article  100  could be any type of article that might be hung from a wall in a home or office. Thus, the article  100  of the article hanging system  1000  may be any type of item or article that is typically hung from a wall in a home, office, or other building or structure. In fact, in some embodiments the article  100  may be any item that is hung from a vertical surface regardless of whether it is interior (indoor) or exterior (outdoor). 
     In the exemplified embodiment, the article  100  comprises a housing  101  that defines a cavity  102  having an opening  103  and a door  104  that encloses the opening  103 . As noted above, the article  100  need not be capable of storing items in all embodiments and thus it need not have a cavity  102  and door  104 . In some embodiments, the article  100  may simply be a flat item, such as a picture frame or the like. Turning back to the exemplified embodiment, the housing  101  comprises a rear wall  105 , a top wall  106 , a bottom wall  107 , a first sidewall  108 , and a second sidewall  109  that collectively define the cavity  102 . The first and second sidewalls  108 ,  109  may include openings or holes to facilitate coupling of shelf supports to the first and second sidewalls  108 ,  109 . Shelves may then be placed within the cavity  102  and supported by the shelf supports. Although not illustrated, such shelves may provide horizontal support surfaces for holding various items. The door  104  may comprise a mirrored outer surface in some embodiments although this is not required. In the exemplified embodiment, the door  104  is coupled to the housing  101  via one or more hinges so that the door  104  may be altered between a closed state as illustrated in  FIG. 1  and an open state as illustrated in  FIG. 2 . 
     In the exemplified embodiment the housing  101  and the cavity  102  are square or rectangular shaped. Thus, in the exemplified embodiment the housing  101  includes the top wall  106 , the bottom wall  107 , the first sidewall  108 , and the second sidewall  109  extending from the rear wall  105 . However, the invention is not to be so limited in all embodiments and the housing  101  may have any desired polygonal shape and can even be circular. Thus, the number of sidewalls extending from the rear wall  105  may be different than that shown in the exemplified embodiment and is dictated by the overall shape of the housing  101  and cavity  102 . Furthermore, in some embodiments the terms first and second sidewall may merely refer to different portions of a singular wall, for example where the housing  101  has a round or circular shape. In some embodiments, the first and second sidewalls  108 ,  109  as used herein may refer to any of one or more sidewalls that extends between the top and bottom walls  106 ,  107 . 
     The article  100  extends from a bottom end  110  to a top end  111  along a longitudinal axis A-A. The top end  111  of the article  100  comprises a top surface  112 . Furthermore, the article  100  comprises an elongated mounting element  120  that facilitates coupling of the cam locks  210  to the article  100 . In the exemplified embodiment, there are two of the cam locks  210  coupled to the article  100  on opposite sides of the longitudinal axis A-A of the article  100 . As will be described in greater detail below, this assists in making sure that the article  100  is hung in a level manner and also enables the article  100  to be slid horizontally along a wall that it is hanging from. Of course, in other embodiments a single cam lock  210  may be coupled to the article  100  to hang the article  100  from a support surface (e.g., wall), and in still other embodiments it is possible that more than two cam locks  210  may be coupled to the article  100  to hang the article  100  from the support surface. 
     In the exemplified embodiment, the elongated mounting element  120  is a mounting channel and the description below will be made with reference to the mounting channel  120 . However, the elongated mounting element  120  need not be a mounting channel  120  in all embodiments. Thus, the elongated mounting element  120  could be a protuberance rather than a channel. However, the elongated mounting element  120  should be configured to interact with the cam locks  210  so that one or more of the cam locks  210  are slidably mounted to the elongated mounting element  120 . 
     As noted above, the elongated mounting element  120  is a mounting channel in the exemplified embodiment, and thus the term “mounting channel  120 ” is used below to describe this feature, it being understood that the “mounting channel  120 ” could be a mounting protuberance or some other structure in alternative embodiments. In the exemplified embodiment, the mounting channel  120  is located at the top end  111  of the article  100 . However, the invention is not to be so limited in all embodiments and it is possible that in other embodiments the mounting channel  120  may be located on a rear surface of the article  100 , on a bottom surface of the article  100 , on a side surface of the article  100  or elsewhere. However, forming the mounting channel  120  at the top end  111  of the article  100  may be preferred in some embodiments as it enables the article  100  to be adequately mounted to the support surface while also permitting the article  100  to move horizontally along the support surface, as described in more detail herein below. 
     In the exemplified embodiment, the mounting channel  120  is elongated along a channel axis B-B that is perpendicular to the longitudinal axis A-A of the article  100 . Furthermore, the top surface  112  of the article  100  extends between the first and second sidewalls  108 ,  109  of the housing  101  along an axis C-C that is equidistant from a front surface  113  of the housing  101  and a rear surface  114  of the housing  101 . The mounting channel  120  is located between the axis C-C of the top surface  112  of the article  100  and the rear surface  114  of the housing  101 . Thus, the mounting channel  120  is located closer to the rear surface  114  of the housing  101  than the front surface  113  of the housing  101 . This helps to enable a cam screw  250  (or other surface mounting element  290 ) that is protruding from the support surface to be able to couple to one of the cam locks  210  located within the mounting channel  120 . The further the mounting channel  120  is from the rear surface  114  of the housing  101 , the further the mounting hardware or surface mounting element must protrude from the support surface to facilitate coupling of the mounting hardware to the cam locks  210  in the mounting channel  120 . 
     Referring to  FIG. 3A , a close-up view of a portion of the mounting channel  120  is provided in accordance with an embodiment of the present invention. The mounting channel  120  is generally a channel or other slot-like feature that is formed integrally with the article  100  to facilitate hanging of the article  100  from a support surface. Thus, in the exemplified embodiment the mounting channel  120  is not formed by a structure that is distinct from and coupled to the article  100 , but rather the mounting channel  120  is formed as a part of the article  100 . Of course, the mounting channel  120  could be formed by a separate component that is coupled to the article  100  in other embodiments. As will be discussed in more detail below, the cam locks  210  are coupled to the article  100  by positioning portions of the cam locks  210  within the mounting channel  120 . The cam locks  210  are able to support the weight of the article  100  without becoming detached from the article  100  due to the relative cross-sectional profiles of the portions of the cam locks  210  that are located within the mounting channel  120  and the open top end of the mounting channel  120 . 
     In the embodiment exemplified in  FIG. 3A , the mounting channel  120  is defined by a bracket  130  protruding from the top surface  112  of the article  100 . The bracket  130  comprises a first bracket member  131  and a second bracket member  134  that are spaced apart from one another as they extend along the top end  111  of the article  100  in the direction of the channel axis B-B. Thus, the mounting channel  120  is defined between the first and second bracket members  131 ,  134 . 
     The first bracket member  131  comprises a first wall  132  extending from the top surface  112  of the article  100  and a second wall  133  extending from a distal end of the first wall  132  towards the rear surface  114  of the housing  101 . The second bracket member  134  comprises a third wall  135  extending from the top surface of the article  100  and a fourth wall  136  extending from a distal end of the third wall  135  towards the front surface  113  of the housing  101 . In the exemplified embodiment, the first and third walls  132 ,  135  extend vertically in a direction of the longitudinal axis A-A of the article  100  and the second and fourth walls  133 ,  136  extend horizontally, in a direction transverse to the longitudinal axis A-A of the article  100 . In the exemplified embodiment, each of the first and second bracket members  131 ,  134  are L-shaped members (they have L-shaped cross-sectional profiles taken transverse to the channel axis B-B) that are elongated along the channel axis B-B. However, the invention is not to be so limited in all embodiments and various shapes and configurations are possible for the first and second bracket members  131 ,  134  in other embodiments as long as the bracket  130  achieves the function described herein. For example, although in the exemplified embodiment the second and fourth walls  133 ,  136  extend horizontally or at right angles to the first and third walls  132 ,  135 , in other embodiments the second and fourth walls  133 ,  136  may extend at acute angles from the first and third walls  132 ,  135  without affecting the functionality of the bracket  130 . 
     The second wall  133  of the first bracket member  131  and the fourth wall  136  of the second bracket member  134  extend from the first and third walls  132 ,  135 , respectively, in a direction towards each other. Thus, the mounting channel  120  comprises a lower portion  121  defined between the first and third walls  132 ,  135  and an upper portion  122  defined between the second and fourth walls  133 ,  136 . Because the second and fourth walls  133 ,  136  extend towards each other, the lower portion  121  of the mounting channel  120  has a larger transverse cross-sectional area than the upper portion  122  of the mounting channel  120 . Stated another way, the lower portion  121  of the mounting channel  120  has a greater width, measured in a direction transverse to the channel axis B-B, than the upper portion  122  of the mounting channel  120 . This allows a portion of the cam lock  210  to nest within the lower portion  121  of the mounting channel  120  while being prevented from being removed from the mounting channel  120  without first sliding the cam lock  210  to an entry section of the mounting channel  120 , as described below. The mounting channel  120  comprises an open top end  125  that provides access into the upper portion  122  of the mounting channel  120 . 
     Still referring to  FIG. 3A , the mounting channel  120  comprise an entry section  123  and a nesting section  124 . The entry section  123  is provided to enable a portion of the cam lock  210  to enter into the mounting channel  120  because the cam lock  210  is unable to pass through the open top end  125  of the mounting channel  120  within the nesting section  124  of the mounting channel  120 . In the exemplified embodiment, the entry section  123  is formed by a gap or break in the bracket  120 . Specifically, at the location of the gap the first and second walls  132 ,  135  do not exist. The gap has a cross-sectional profile that is sufficiently sized and shaped to permit the portion of the cam lock  210  to enter into the mounting channel  120  through the entry section  123 . Forming the entry section  123  via the gap in the bracket  120  is merely one exemplified embodiment. 
       FIG. 9B  illustrates an alternative embodiment whereby the entry section  123 A of the mounting channel  120 A is formed by a region of the upper portion  122 A of the mounting channel  120 A having an increased size that permits the portion of the cam lock  210  to enter into the mounting channel  120 A. Specifically, in  FIG. 9B  there is no gap in the bracket  130  forming the mounting channel  120 , but rather the mounting channel  120  has an increased width at the entry section  123 A. More specifically, in this embodiment the second and fourth walls  133 A,  136 A of the bracket  130 A have a notch or cutout  137 A that are aligned with one another. The notches  137 A collectively have a diameter that permits a portion of the cam lock  210  to enter into the mounting channel  120 A at the entry section  123 A. More specifically, as seen in  FIG. 9B  the portion of the cam lock  210  that is located within the mounting channel  120  when the cam lock  210  is coupled to the article  100  is round. Thus, the entry section  123 A of the mounting channel  120 A defined by the notches  137 A is also round and with a larger diameter than the portion of the cam lock  210  so that the portion of the cam lock  210  can enter into the mounting channel  120 A through the entry section  123 A. This will be described in more detail below. Of course, the entry section  123 A and the portion of the cam lock  210  may have other complementary shapes so long as the portion of the cam lock  210  can pass into the mounting channel  120  via the entry section  123 A. 
     Referring to  FIG. 3B , another alternative embodiment is illustrated wherein the mounting channel  120 B is not formed by any brackets extending from the top end  111 B. Rather, in  FIG. 3B  the mounting channel  120 B is defined by a slot  129 B that is formed directly into the top surface  112 B of the article  100 B. The slot  129 B is an elongated opening that is formed directly into the top surface  112 B of the article  100 B. The slot  129 B has an entry section  123 B similar in shape to the entry section  123 A shown in  FIG. 9B  and discussed above. Again, the portion of the cam lock  210  that is located within the mounting channel  120 B when the cam lock  210  is coupled to the article  100 B can only pass into the mounting channel  120 B within the entry section  123 B thereof. Thus, once the portion of the cam lock  210  is in the nesting section  124 B of the mounting channel  120 B, the cam lock  210  is coupled to the article  100 B and can support the article  100 B from the support surface. The manner of coupling the cam lock  210  to the article  100  will be described in greater detail below with reference to  FIGS. 9A-11 . As noted above, in other embodiments the mounting channel  120  may be replaced with a mounting protuberance and the cam lock  210  may include a slot that receives the mounting protuberance of the article  100 . Variations of this type are possible and fall within the scope of the invention as disclosed herein. 
     Referring to  FIGS. 4-8  concurrently, the cam lock  210  will be described. Generally speaking, a cam lock is a hardware component that is capable of being coupled to a head portion of a screw or nail having a specific structure. In the embodiment disclosed herein, the screw is referred to as a cam screw, although other types of hardware can be used in place of the cam screw, such as a standard screw, a nail, a bracket having protruding features that are similar in shape to the head/neck of a screw, or the like. In the exemplified embodiment, the cam lock  210  is coupled to the cam screw by placing the head portion of the screw within an opening in the cam lock and then rotating the cam lock relative to the head portion of the screw. This rotation creates a secure connection between the cam lock and the cam screw, as will be better understood from the description provided herein below, particularly with reference to  FIGS. 16-18 . 
     The cam lock  210  comprises a main body (also referred to herein as a second portion)  211 , a stem  212  extending from the main body  211 , and a flange (also referred to herein as a first portion)  213  extending radially from the stem  212 . The main body  211  is coupled to a first end of the stem  212  and the flange  213  extends from a second end of the stem  212  that is opposite the first end. 
     The main body  211  of the cam lock  210  defines a receiving cavity  214  that is configured to receive a head and a neck of a cam screw to couple the cam lock  210  to the cam screw. In previously known cam locks, the main body  211  forms the entirety of the component. Thus, the stem  212  and the flange  213  are not formed as a part of a conventional cam lock. The stem  212  and the flange  213  are included in the cam lock  210  of the present invention to facilitate coupling of the cam lock  210  to the article  100 , and specifically to the mounting channel  120  of the article  100 . Thus, when the cam lock  210  is coupled to the article  100 , the flange (or first portion)  213  of the cam lock  210  is located within the mounting channel  120 , the stem  212  passes through the open top end  125  of the mounting channel  120 , and the main body (or second portion)  211  of the cam lock  210  protrudes from the mounting channel  120 . 
     The main body  211  comprises a top portion  215  having a top surface  216  and a bottom surface  217  and a bottom portion  218  having a top surface  219  and a bottom surface  220 . The top and bottom portions  215 ,  218  are connected by a sidewall  235 , and thus the main body  211  of the cam lock  210  has a generally C-shaped cross-sectional profile (see  FIG. 8 ). The receiving cavity  214  is defined between the bottom surface  217  of the top portion  215  and the top surface  219  of the bottom portion  216  of the main body  211 . The top surface  216  of the top portion  215  comprises a recess  221  or other configuration that is configured to receive a working end of a tool for rotating the cam lock  210  about a longitudinal axis D-D of the cam lock  210 . The tool may be a screw driver and thus the recess  221  may have a cross-shape or a slot-shape for being engaged by a Phillips head or slot head screwdriver. 
     The bottom surface  217  of the top portion  215  of the main body  211  comprises a base surface  222  and an upper cam surface  223 . The top surface  219  of the bottom portion  218  of the main body  211  comprises a base surface  224  and a lower cam surface  225 . The receiving cavity  214  comprises an entry section  226  and a nesting section  227 . Furthermore, the cam lock  210  comprises a cam slot between the upper and lower cam surfaces  223 ,  225 . In the exemplified embodiment, the cam slot  239  is circumferentially aligned with the entry section  226  of the receiving cavity  214 . 
     The upper cam surface  223  is at a different elevation than the base surface  222  and the lower cam surface  225  is at a different elevation than to the base surface  224 . Thus, the receiving cavity  214  comprises a first maximum height H 1  measured between the base surfaces  222 ,  224  and the cam slot  239  comprises a second maximum height H 2  measured between the upper and lower cam surfaces  223 ,  225 , the first maximum height H 1  being greater than the second maximum height H 2 . 
     The lower cam surface  225  comprises a first portion  228 , a second portion  229 , and ramp  230  between the first and second portions  228 ,  229 . The first portion  228  of the lower cam surface  225  is elevated (or raised) relative to the base surface  224  and the second portion  229  of the lower cam surface  225  is elevated (or raised) relative to the first portion  228  of the lower cam surface  225 . The ramp  230  connects the first and second portions  228 ,  229  and is inclined relative to the first portion  228 , thereby creating this difference in elevations of the first and second portions  228 ,  229 . The upper cam surface  223  comprises an anti-rotation feature  231 , which in the exemplified embodiment is a protuberance that extends downwardly into the cam slot  239 . In the exemplified embodiment, the anti-rotation feature  231  is axially aligned with the first portion  228  of the lower cam surface  225 . The anti-rotation feature  231  could also be axially aligned with the ramp  230  of the lower cam surface  225  while achieving the same purpose as set forth below. 
     The combination of the change in elevations between the first and second portions  228 ,  229  of the lower cam surface  225  and the anti-rotation feature  231  of the upper cam surface  223  effectively prevent accidental de-coupling of the cam lock  210  from a cam screw. To couple a cam screw to the cam lock  210 , the head and neck of the cam screw are inserted into the receiving cavity  214 . Next, the cam lock  210  is rotated in a clockwise direction relative to the head and neck of the cam screw. As the cam lock  210  is rotated, the neck of the cam screw rides along the upper and lower cam surfaces  223 ,  225  until it abuts against the end wall  232  and the cam lock  210  can no longer be rotated. At this point, the cam screw is securely coupled to the cam lock  210  (as best shown in  FIG. 18 ). Furthermore, if the cam lock  210  were to be accidentally rotated in a counter-clockwise direction, the neck of the cam screw would contact the anti-rotation feature (i.e., protuberance)  231 , thereby effectively preventing the cam lock  210  from being rotated a sufficient amount to de-couple the cam lock  210  from the cam screw. A user must purposefully rotate the cam lock  210  in the counter-clockwise direction to get the neck of the cam screw past the anti-rotation feature  231  to de-couple the cam lock  210  from the cam screw (or the accidental rotation would have to be at a sufficient force to move the neck of the cam screw past the anti-rotation feature  231 ). 
     As noted above, the stem  212  extends from the bottom surface  220  of the bottom portion  218  of the main body  211 . The flange  213  extends radially from the stem  212 . As a result, a top surface  233  of the flange  213  is spaced apart from the bottom surface  220  of the bottom portion  218  of the main body  211  by a gap  234 . The gap  234  is an annular gap that circumferentially surrounds the stem  212 . When the cam lock  210  is coupled to the article  100 , a portion of the article  100  nests within the gap  234  and rests on the top surface  233  of the flange  213  so that the flange  213  axially supports the article  100 . In the exemplified embodiment, the flange  213  has a circular shape. However, the invention is not to be so limited and the flange  213  may be square or otherwise shaped so long as it is able to fit into the mounting channel  210  as has been described herein. 
     As noted above, throughout the description and claims, the flange  213  of the cam lock  210  may be referred to as the first portion of the cam lock  210  and the main body  211  of the cam lock  210  may be referred to as the second portion of the cam lock  210 . It should be appreciated that when the first portion of the cam lock  210  is referenced in the claims and disclosure, the description of the flange  213  is applicable and when the second portion of the cam lock  210  is referenced in the claims and disclosure, the description of the main body  211  is applicable. 
     Referring to  FIGS. 9A-11 , the manner in which the cam locks  210  are coupled to the mounting channel  120  of the article  100  will be described. The mounting channel  120  is configured to receive the cam lock  210  therein so that the cam lock  210  can slide within the mounting channel  120  in a direction of the channel axis B-B. Specifically, the cam lock  210  can be inserted into the mounting channel  112  by aligning the cam lock  210  with the entry section  123  of the mounting channel  120  and then the cam lock  210  can be slid into and within the nesting section  124  of the mounting channel  120 . The cam lock  210  can only be removed from the mounting channel  120  by moving the cam lock  210  back to the entry section  123  and then pulling the cam lock  210  in a direction away from the article  100 . When the cam lock  210  is located within the nesting section  124  of the mounting channel  120 , the cam lock  210  is slidably coupled to the mounting channel  120  of the article  100  and can be used to hang the article  100  from a support surface (e.g., wall or other vertical surface) as will be discussed in greater detail below. The first portion (or flange)  213  of the cam lock  210  is freely slidable within the mounting channel  120  in a direction parallel to the channel axis B-B while being substantially prevented from movement in a direction perpendicular to the channel axis B-B (either in a direction parallel to the longitudinal axis A-A of the article  100  or in direction between the front and rear surfaces  113 ,  114  of the housing  101 ). 
       FIGS. 9A and 9B  are identical except with regard to the shape and/or structure of the entry section  123 ,  123 A of the mounting channel  120 ,  120 A, as described previously. Referring to  FIGS. 9A, 9B, and 10 , the flange or first portion  213  of the cam lock  210  is positioned adjacent to the entry section  123 ,  123 A of the mounting channel  120 ,  120 A. The cam lock  210  is then moved in a first direction towards the article  100  until the flange or first portion  213  of the cam lock  210  is located within the entry section  123 ,  123 A of the mounting channel  120 ,  120 A. Next, referring to  FIGS. 10 and 11 , the cam lock  210  is moved or translated in a second direction (i.e., in a direction of the channel axis B-B) that is perpendicular to the first direction, thereby moving the first portion or flange  213  of the cam lock  210  into the nesting section  124  of the mounting channel  120 . 
     When the first portion or flange  213  of the cam lock  210  is located in the nesting section  124  of the mounting channel  120 , the second and fourth walls  133 ,  136  extend over the first portion or flange  213  of the cam lock  210 , thereby preventing the first portion or flange  213  of the cam lock  210  from being removed from the nesting section  124  of the mounting channel  120 . Thus, interference between the second and fourth walls  133 ,  136  of the bracket  130  and the first portion or flange  213  of the cam lock  210  prevents the cam lock  210  from being removed from the mounting channel  120 . Stated another way, the second and fourth walls  133 ,  136  of the bracket  130  are located within the gap  234  between the first portion/flange  213  and the second portion/main body  211 . The only way to remove the first portion or flange  213  of the cam lock  210  from the mounting channel  120  is to slide the cam lock  210  over to the entry section  123  of the mounting channel  120  and then pull the cam lock  210  away from the article  100 . 
     The first portion or flange  213  of the cam lock  210  can slide side-to-side in the direction of the channel axis B-B while remaining located within the nesting section  124  of the mounting channel  120 . The cam lock  210  can also rotate about its longitudinal axis D-D while the first portion or flange  213  of the cam lock  210  is located in the nesting section  124  of the mounting channel  120 . With the first portion or flange  213  of the cam lock  210  located in the nesting section  124  of the mounting channel  120 , the second portion or main body  211  of the cam lock  210  protrudes from the mounting channel  120 . More specifically, the first portion or flange  213  of the cam lock  210  is located in the lower portion  121  of the mounting channel  120 , the stem  212  of the cam lock  210  extends through the upper portion  122  and the open top end  125  of the mounting channel  120 , and the second portion of main body  211  of the cam lock  210  protrudes from the mounting channel  120 . As a result, the second portion or main body  211  of the cam lock  210  is accessible for coupling to a surface mounting element (e.g., a cam screw) that is coupled to a support surface, as described herein below. When the first portion or flange  213  of the cam lock  210  is located within the nesting section  124  of the mounting channel  210 , the first portion or flange  213  of the cam lock  210  can support the full weight of the article  100 . Thus, one could support the article  100  from above by gripping the second portion/main body  211  of the cam lock  210  (or coupling it to a cam screw that is coupled to a support surface) while the first portion/flange  213  of the cam lock  210  is located in the nesting section  124  of the mounting channel  120 . 
     Referring to  FIGS. 12 and 13 , the coupling of the cam screw  250  and the anchor  270  to a support surface  299  (e.g., wall or other vertical surface) is illustrated. As noted above, the cam screw  250  and/or anchor  270  is merely one embodiment of a surface mounting element  290  that may be used to mount the article  100  to the support surface, and any of the other components or elements described herein can be used as an alternative to the cam screw  250  and anchor  270 . The anchor  270  comprises a main portion  271  with an internal cavity  272  and a flange  273  that surrounds an opening into the internal cavity  272 . As noted above, in some embodiments the anchor  270  may be omitted if it is determined that the cam screw  250  can sufficiently support the article  100  without the added support offered by the anchor  270 . The anchor  270  may be formed of plastic or metal and may be specifically configured to support the weight of the article  100 . 
     The cam screw  250  includes a threaded portion  251 , a thickened portion  252  adjacent to the threaded portion  251 , a neck portion  253  adjacent to the threaded portion  252 , and a head  254 . In the exemplified embodiment, the threaded portion  251  forms a first portion  255  of the cam screw  250  and the thickened portion  252 , the neck portion  253 , and the head portion  254  collectively form a second portion  256  of the cam screw  250 . The thickened portion  252  has a greater diameter than the threaded portion  251  to prevent the thickened portion  252  from entering into the internal cavity  272  of the anchor  270  when the cam screw  250  is being coupled to the support surface  299  that is already fitted with the anchor  270 . This ensures that the head  254  is maintained at a distance from the support surface  299  in the fully installed state to facilitate coupling of the cam screw  250  to the cam lock  210 . 
     In the exemplified embodiment, first a hole  298  is drilled into the support surface  299 . Next, the anchor  270  is placed into the hole  298  until the flange  273  abuts the front surface of the support surface  299 . Finally, the cam screw  250  is placed into the internal cavity  272  of the anchor  270  until the thickened portion  252  of the cam screw  250  abuts against the flange  273  of the anchor  270 . Of course, as noted previously the anchor  270  can be omitted and the cam screw  250  can be coupled directly to the support surface  299  in alternative embodiments. Regardless, in its fully installed state shown in  FIG. 13 , the first portion  255  of the cam screw  250  is embedded within the support surface  299  and the second portion  256  of the cam screw  250  protrudes from the support surface  299 . Thus, when installed on the support surface  299 , the head  254  of the cam screw  250  is spaced apart from the support surface  299  by the thickened portion  252  and the neck  253  of the cam screw  250 . 
     As noted above, the surface mounting element  290  could take on other forms different from the cam screw  250 . For example, the surface mounting element  290  could be a bracket that is coupled to the wall such that the bracket  290  has one or more protruding features that have a shape that is similar to a head and neck of a screw. This would ensure that the cam lock  210  is still capable of being coupled to the surface mounting element  290  in the same manner as described herein. Moreover, other substitutes for the cam screw  250  may also be used as has been described above (i.e., a nail, a traditional/conventional screw, or the like). 
     Referring now to  FIGS. 14-18 , the manner in which the article  100  is hung from the wall using the cam lock  210  and the cam screw  250  will be described. Specifically, as discussed previously, first the cam screw  250  is coupled to the support surface  299  (either with or without the anchor  270 ) and the cam lock  210  (or cam locks  210 ) is slidably coupled to the mounting channel  120  of the article  100 . In the exemplified embodiment, there are two cam screws  250  coupled to the support surface  299  at the same elevation and in a horizontally spaced apart manner. There are also two cam locks  210  slidably mounted to the article  100  and configured for coupling to the cam screws  250 . Next, the article  100  is positioned so that each of the cam locks  210  is aligned with one of the cam screws  250 . This can be accomplished by holding the article  100  up near the cam screws  250  and sliding the cam locks  210  within the mounting channel  120  until each cam lock  210  is aligned with one of the cam screws  250 . 
     While the cam screws  250  are fixedly coupled to the support surface  299  such that they cannot be moved once they are secured to the support surface  299 , the cam locks  210  can be slid within the mounting channel  120  in the direction of the axis B-B of the mounting channel  120  while remaining coupled to the article  100 . Thus, there is no exact distance that must exist between the cam screws  250  when they are coupled to the support surface  299 . The cam screws  250  should simply be placed in the support surface  299  level to each other (along a horizontal axis to ensure that the article  100  is hung in a level manner) without concern about the exact distance between the cam screws  250 . This eliminates the need for templates or other external assistance devices when hanging bath storage or other household storage products. 
     Thus, if the cam screws  250  are relatively close together, then the cam locks  210  will be slid within the mounting channel  120  towards one another to make sure each cam lock  210  is aligned with one of the cam screws  250 . If the cam screws  250  are relatively far apart, then the cam locks  210  will be slid within the mounting channel  120  away from one another to make sure each cam lock  210  is aligned with one of the cam screws  250 . The only requirement is that the distance between the cam screws  250  cannot be greater than the length of the mounting channel  120  measured in the direction of the axis B-B. 
     It should be appreciated that although two of the cam locks  210  and two of the cam screws  250  are illustrated in the exemplified embodiment, more than two cam locks  210  and cam screws  250  can be used in other embodiments to provide a more secure attachment of the article  100  to the support surface  299 . 
     As seen in  FIGS. 14 and 15 , once the cam locks  210  are aligned with the cam screws  250 , the article  100  is moved towards the support surface  299  so that the heads  254  of the cam screws  250  can enter into the receiving cavities  214  of the cam locks  210 . In order to enable this to occur, the cam locks  210  are rotated so that the entry section  226  of the receiving cavities  214  of the cam locks  210  face outwardly towards the cam screws  250 . Thus, as the cam locks  210  approach the cam screws  250 , the head and neck portions  254 ,  253  of the cam screws  250  enter into the receiving cavities  214  through the entry section  226 . 
     Referring to  FIGS. 16 and 17 , once the head and neck portions  254 ,  253  of the cam screws  250  are located within the receiving cavities  214  of the cam locks  210 , the cam locks  210  are rotated in a clockwise direction. As the cam locks  210  are rotated, the head portions  254  of the cam screws  250  enter into the cam slot  239  of the receiving cavities  214 . More specifically, the neck portions  253  of the cam screws  250  ride along the upper and lower cam surfaces  223 ,  225  until the neck portions  253  abut against the end walls  232 . Once the cam locks  210  are rotated in this manner, the cam locks  210  are coupled to the cam screws  250  such that they cannot be detached without first rotating the cam locks  210  in the opposite (counterclockwise) direction. Stated another way, the cam locks  210  are alterable between: (1) a receiving state in which the second portion  256  of the surface mounting element (i.e., cam screws  250 ) can be inserted into and removed from the second portion  211  of the cam lock  210 ; and (2) a locked state in which the second portion  256  of the surface mounting element (cam screws  250 ) is prohibited from being removed from the second portion  211  of the cam lock  210 . 
     The final installed state is perhaps best illustrated in  FIG. 18 . The first portion  255  of the cam screw  250  is embedded within the support surface  299  and the second portion  256  of the cam screw  250  protrudes from the support surface  299 . The second portion  256  of the cam screw  250  is securely coupled to the main body/second portion  211  of the cam lock  210  as has been described herein above. The first portion/flange  213  of the cam lock  210  is slidably coupled to the mounting channel  120  of the article  100 . The cam lock  210  supports the weight of the article  100  via contact between the second and fourth walls  133 ,  136  and the top surface of the first portion/flange  213  of the cam lock  210 . 
     Referring to  FIGS. 19A and 19B , when the article  100  is mounted to and hanging from the support surface  299  as shown in  FIG. 18 , the article  100  can slide or translate side-to-side along the support surface  299 . As the article  100  slides side-to-side along the support surface  299 , the first portion/flange  213  of the cam lock  210  slides within the mounting channel  120  of the article  100  while the cam screws  250  remain in a fixed position on the support surface  299 . During such sliding of the article  100 , the cam lock  210  remains coupled to the article  100  and to the cam screws  250  as has been described herein. Thus, if after installation it is desired to move the article  100  to the left or to the right, this can readily be accomplished without removing the screws  250  and the anchors  270 . This enables movement of the article  100  without leaving holes in the wall that need to be repaired. In some embodiments, the article  100  can only be slid side-to-side while the cam lock  210  is in the receiving state. Specifically, once the cam locks  210  are rotated into the locked state, the rotation of the cam locks  210  pulls the article  100  into contact with the support surface such that frictional contact between the article  100  and the support surface makes it very difficult to slide the article  100  along the support surface. Thus, rotating the cam locks  210  locks the article  100  in position on the support surface. 
     The length of the mounting channel  120  measured along the channel axis B-B dictates the amount of movement that is possible, but in some embodiments it may be between 1-10 inches, or more specifically between 1-8 inches, or more specifically between 1-6 inches, or more specifically between 1-4 inches, or more specifically between 1-3 inches, or more specifically between 2-3 inches. Furthermore, by using two cam locks  210  and cam screws  250  and coupling the cam screws  250  to the support surface  299  in a level manner, it can be ensured that the article  100  will be level when the cam locks  210  are coupled to the cam screws  250 . Sliding the article  100  side-to-side will not change the level hanging of the article  100  on the support surface  299 . 
     Referring to  FIGS. 20-22A , the article  100  may be further secured to the support surface via a support bracket  300  that is coupled to the bottom end  110  of the article  100 . In some embodiments, the article  100  may first be coupled to the support bracket  300 , which will support the article  100  from below. Next, the article  100  can be coupled to the support surface using the cam locks  210  and cam screws  250  as discussed above. Using the support bracket  300  to support the article  100  from below before coupling the article  100  to the support surface using the cam locks  210  and cam screws  250  makes it easier to complete an effective level hanging of the article  100  because much of its weight is supported by the support bracket  300 . 
     In the exemplified embodiment the article  100  comprises a second mounting element (i.e., second mounting channel)  310  located on the bottom surface  110 . Although described and illustrated herein as a channel, the second mounting element  310  could be a protuberance or the like in other embodiments similar to that which has been described above with regard to the first mounting element/channel  120 . In the exemplified embodiment, the second mounting channel  310  is similar in structure to the mounting channel  120  in that it comprises first and second bracket members  311   a ,  311   b  that are spaced apart from one another to collectively define the mounting channel  310  between the first and second bracket members  311   a ,  311   b . The details of the mounting channel  120 ,  120 A,  120 B are applicable to the mounting channel  310  and thus further details will not be provided herein for the structure mounting channel  310 . 
     In the exemplified embodiment, the support bracket  300  comprises a first portion  301  and a second portion  302 . The first portion  301  of the support bracket  300  is configured to be mounted to the support surface  299  and the second portion  302  of the support bracket  300  is configured to at least partially nest within the second mounting channel  310  on the bottom end  110  of the article  100 . In the exemplified embodiment, the support bracket  300  is an S-shaped bracket having a first vertical section  303 , a second vertical section  304 , and a horizontal section  305  extending between the first and second vertical sections  301 ,  302 . The first portion  301  of the support bracket  300  comprises the first vertical section  303  and the second portion  302  of the support bracket  300  comprises the second vertical section  302 . Of course, other shaped brackets may be used and the S-shape is only one exemplary embodiment. 
     In use, the second vertical section  304  of the support bracket  300  is inserted into the mounting channel  310  and the first vertical section  303  of the support bracket  300  abuts against the support surface  299 . Next, screws  306  or other fasteners are inserted into elongated openings  307  that are formed into the first vertical section  303  of the support bracket  300  to secure the support bracket  300  to the support surface  299 . Even when the support bracket  300  is secured to the support surface  299  and the second vertical section  304  is located within the mounting channel  310 , the article  100  can slide side-to-side with the second vertical section  304  of the support bracket  300  remaining positioned within the mounting channel  310 . Specifically, as the article  100  moves side-to-side along the support surface  299  as described above, the support bracket  300  remains in a fixed position on the support surface  299  while the article  100  moves relative to the support bracket  300 , all with the second vertical section  304  of the support bracket  300  located within the mounting channel  310 . It should be appreciated that the support bracket  300  provides added support for the article  100  in embodiments that it include it, but it may be omitted in some embodiments. The support bracket  300  holds the bottom end  110  of the article  100  close to the support surface  299  rather than permitting it to separate from the support surface  299  as would occur if the support bracket  300  were not used. 
       FIG. 22B  illustrates an alternative embodiment whereby the support bracket  300  has a lip  320  that extends horizontally from the second vertical section  304  in a direction towards the first vertical section  303 . The lip  320  interacts with the second mounting channel  310  to assist in preventing the article  100  from moving away from the wall. All other details of the support bracket  300  shown in  FIG. 22B  are identical to that which has been described above with reference to  FIGS. 20-22A . 
     Referring now to  FIGS. 23-26 , an alternative article hanging system  2000  is illustrated and will be described. The hanging system  2000  comprises an article  400  having a mounting member  401  and hardware  450 , as with the previous embodiment. However, the specific structure and type of the mounting member  401  of the article  400  and of the hardware  450  is different than in the previously described embodiment. 
     Specifically, in this embodiment the mounting member  401  of the article  400  comprises a mounting bracket  402  (L-shaped in the exemplified embodiment) having a vertical portion  403  extending upwardly from the top end of the article  400  and a horizontal portion  404  extending from the vertical portion  403  in a direction away from a front  405  of the article  400 . 
     Furthermore, the hardware  450  comprises one or more wall brackets  451  and various fasteners including screws and anchors. Specifically, each of the wall brackets  451  comprises a vertical portion  452  and a pair of fingers  453   a ,  453   b  extending horizontally from the vertical portion  452  in a spaced apart manner. The fingers  453   a ,  453   b  are spaced apart by a gap  454  that is larger than the thickness of the horizontal portion  404  of the mounting bracket  402  of the mounting member  401  of the article  400 . This enables the horizontal portion  404  of the mounting bracket  402  to be received within the gap  454  such that one of the fingers  453   a  is positioned adjacent a top surface of the horizontal portion  404  of the mounting bracket  402  and the other one of the fingers  453   b  is positioned adjacent a bottom surface of the horizontal portion  404  of the mounting bracket  402 . 
     Although not illustrated, in certain embodiments each of the fingers  453   a ,  453   b  may include an aperture extending therethrough and the horizontal portion  404  of the mounting bracket  402  may include a plurality of apertures extending therethrough in a spaced apart manner along the length of the horizontal portion  404  of the mounting bracket  402 . Thus, the fingers  453   a ,  453   b  may be located along the horizontal portion  404  of the mounting bracket  402  so that the apertures in the fingers  453   a ,  453   b  are aligned with one of the apertures in the horizontal portion  404  of the mounting bracket  402 . Then, a fastener such as one or more screws  470  may be inserted through the aligned apertures to secure the wall brackets  451  to the mounting bracket  402 . 
     The installation of the article  400  on a support surface  399  using the mounting bracket  402  and the hardware  450  will be described. First, referring to  FIG. 25 , the wall brackets  451  are secured to the support surface  399  by inserting a screw  460  into an aperture formed into the vertical portion  452  of the wall brackets  451 . The screw  460  may enter into an anchor  461  that is pre-inserted into a pre-drilled hole in the support surface  399  if the addition of an anchor  461  is desired or required depending on the weight of the article being hung and whether it is being secured to the support surface  399  at the location of a wall stud. 
     Next, as illustrated in  FIG. 24 , the article  400  is aligned with the installed wall brackets  451  so that the horizontal portion  404  of the mounting bracket  402  is aligned with the gap  454  between the fingers  453   a ,  453   b  of the wall bracket  451 . Then, as shown in  FIG. 26 , the article  400  is translated towards the wall brackets  451  until the horizontal portion  404  of the mounting bracket  402  enters into the gaps  454  between the fingers  453   a ,  453   b  of the wall brackets  451 . Finally, the additional screws  470  or other fasteners are inserted into the aligned openings in the fingers  453   a ,  453   b  and openings in the horizontal portion  404  of the mounting bracket  402  to couple the wall bracket  451  to the mounting bracket  402 . This is shown in  FIG. 20  whereby a screw  470  and screwdriver are facing the wall brackets  451  and mounting bracket  402  in preparation for insertion therein. Thus, once the wall brackets  451  are secured to the support surface  399  and to the mounting bracket  402  of the mounting member  401  of the article  400 , the article  400  is fully installed and secured to support surface. Of course, in some embodiments the support bracket  300  described in  FIGS. 20-22B  may also be used with this embodiment to secure a lower portion of the article to the support surface  399 . 
     In this embodiment, the article  400  may be slid side-to-side along the support surface  399  while the horizontal portion  404  of the mounting bracket  402  is located within the gap  454  of the wall bracket  451 . However, once the hardware  470  secures the mounting bracket  402  to the wall bracket  451 , the article  400  can no longer be moved along the support surface  399 . If there is a desire to move the article  400  horizontally along the support surface  399 , a user would merely need to remove the hardware  470 , move the article  400  as desired, and then reattach the hardware  470  in the manner shown and described herein. The wall brackets  451  would not need to be moved to accomplish such horizontal movement of the article  400  along the support surface  399 . Furthermore, in some embodiments the hardware  470  need not be used and the article  400  may be hung from the support surface  399  merely by the engagement between the mounting bracket  402  and the wall brackets  451  without physically coupling those components together with hardware. 
     Referring to  FIGS. 27-29 , a cabinet  500  is illustrated in accordance with another embodiment of the present invention. In the exemplified embodiment, the cabinet  500  is a medicine cabinet. However, the invention is not to be so limited in all embodiments and the cabinet  500  could alternatively be a kitchen cabinet, a household storage device, any type of bath storage device, or the like. Generally, the cabinet  500  is of the type that can be flush mounted or surface mounted on a support surface such as a wall. Flush mounting is achieved by recessing the cabinet  500  into a wall with the front surface of the cabinet  500  (door excepted) flush with the wall. In flush mounting the side walls of the cabinet  500  are hidden from view because they are disposed within a recess in the wall rather than being exposed. Surface mounting is achieved by mounting the cabinet  500  to a wall with the rear surface of the cabinet  500  in contact with the exposed surface of the wall. Cabinets that are surface mounted have their side walls exposed. 
     The present invention results in the exposed side walls of the cabinet  500  being aesthetically pleasing to enhance the aesthetic of the cabinet  500  as viewed by an individual. Specifically, cabinets of the type described herein have holes in their sidewalls for coupling shelf supports to the cabinet. The holes in the sidewalls are exposed when the cabinet  500  is surface mounted onto a wall. The present invention hides the holes in the sidewalls by forming a double-walled structure such that the outermost wall that is exposed while the cabinet  500  is surface mounted on a wall does not have any holes therein. The storage cabinet  500  may be formed out of a plastic material via injection molding in some embodiments, although other materials and manufacturing techniques are also possible in accordance with other embodiments of the invention. 
     The cabinet  500  extends from a bottom end  599  to a top end  598  along an axis E-E. The cabinet  500  comprises a housing  501  and a door  550  coupled to the housing  501 . The housing  501  comprises a rear wall  502  that forms a rear surface  540  of the housing  501  and a plurality of sidewalls  503  extending from the rear wall  502  in a direction opposite the rear surface  540 . The rear wall  502  and the plurality of sidewalls  503  collectively define a cavity  504  having an opening  505 . In the exemplified embodiment, the cavity  504  of the housing  501  has a square or rectangular shape. Of course, the invention is not to be so limited and the cavity  504  may have any polygonal shape or may be circular in alternative embodiments. The cabinet  500  comprises a front wall  513  that surrounds the opening  505 , the front wall forming a front surface  541  of the housing  501 . The door  550  of the cabinet  500  encloses the opening  505  and is coupled to the housing  501 , and more specifically to the front wall  513  of the housing  501 , via one or more hinges  512 . The door  550  is configured to be altered between an open state whereby the opening  505  is exposed ( FIG. 28 ) and a closed state whereby the opening  505  is closed ( FIG. 27 ). The door  550  may have a mirrored front surface  551  in some embodiments, although this is not required in all embodiments. 
     The plurality of sidewalls  503  comprise a top wall  506 , a bottom wall  507  opposite the top wall  506 , a first inner sidewall  508 , and a second inner sidewall  509  opposite the first inner sidewall  508 . Inner surfaces of the top wall  506 , the bottom wall  507 , the first inner sidewall  508 , the second inner sidewall  509 , and a front surface of the rear wall  502  collectively define the cavity  504 . The first inner sidewall  508  comprises a plurality of openings  510  and the second inner sidewall  509  comprises a plurality of openings  511 . In the exemplified embodiment, there are a plurality of pairs of the openings  510 ,  511  arranged at different vertical locations along the first and second inner sidewalls  508 ,  509 . The openings  510  on the first inner sidewall  508  are aligned with the openings  511  on the second inner sidewall  509 . 
     The openings  510 ,  511  of the first and second inner sidewalls  508 ,  509  are configured to receive connection elements  561  of shelf supports  560  to couple the shelf supports  560  to the first and second inner sidewalls  508 ,  509 . The shelf supports  560  support one or more shelves  580  between the first and second inner sidewalls  508 ,  509  of the housing  501 . The shelves  580  are oriented horizontally within the cavity  504  between the first and second inner sidewalls  508 ,  509  and are configured to hold or otherwise support items that are stored in the cabinet  500 . The details of the shelf supports  560  and the shelves  580  will be provided below with reference to  FIGS. 33A-34D . 
     Referring to  FIGS. 30-32 , the cabinet  500  will be further described. As noted previously, in some embodiments it may be desirable for the first and second inner sidewalls  508 ,  509  to be hidden from view because viewing the openings  510 ,  511  in the first and second inner sidewalls  508 ,  509  and the connection elements  561  of the shelf supports  560  is not aesthetically pleasing. The first and second inner sidewalls  508 ,  509  extend between the top wall  506  and the bottom wall  507 . Furthermore, the cabinet  500  comprises a first outer sidewall  514  extending between the top and bottom walls  506 ,  507  adjacent to and spaced apart from the first inner sidewall  508  and a second outer sidewall  515  extending between the top and bottom walls  506 ,  507  adjacent to and spaced apart from the second inner sidewall  509 . In the exemplified embodiment, the front wall  513  extends radially beyond the top wall  506 , the bottom wall  507 , and the first and second outer sidewalls  514 ,  515 . In the exemplified embodiment, the first outer sidewall  514  is parallel to the first inner sidewall  508  and the second outer sidewall  515  is parallel to the second inner sidewall  509 . 
     Each of the first and second inner and outer sidewalls  508 ,  509 ,  514 ,  514  extend between the top and bottom walls  506 ,  507 , and thus each of the first and second inner and outer sidewalls  508 ,  509 ,  514 ,  515  has the same length measured in a direction between the top and bottom walls  506 ,  507  (i.e., in a direction parallel to the longitudinal axis E-E of the cabinet  500 ). More specifically, the top and bottom walls  506 ,  507  extend beyond the first and second inner sidewalls  508 ,  509  in a direction transverse to the longitudinal axis E-E so that the top and bottom walls  506 ,  507  are connected directly to opposite ends of the first and second outer sidewalls  514 ,  515 . 
     The first inner sidewall  508  has an inner surface  516  facing the cavity  504  and an opposite outer surface  517 . The second inner sidewall  509  has an inner surface  518  facing the cavity  504  and an opposite outer surface  519 . The first outer sidewall  514  has an inner surface  520  facing the outer surface  517  of the first inner sidewall  508  and an opposite outer surface  521  that is exposed when the cabinet  500  is surface mounted on a support surface. The second outer sidewall  515  has an inner surface  522  facing the outer surface  519  of the second inner sidewall  509  and an opposite outer surface  523  that is exposed when the cabinet  500  is surface mounted on a support surface. The outer surface  517  of the first inner sidewall  508  is concealed by the first outer sidewall  514  and the outer surface  519  of the second inner sidewall  509  is concealed by the second outer sidewall  515 . 
     The outer surface  517  of the first inner sidewall  508  is spaced apart from the inner surface  520  of the first outer sidewall  514  by a first gap  524 . The first gap  524  exists along the entire length of the first inner and first outer sidewalls  508 ,  514  (with the length of the first inner and outer sidewalls  508 ,  514  being measured in a direction parallel to the longitudinal axis E-E of the housing  501 ). The outer surface  519  of the second outer sidewall  509  is spaced apart from the inner surface  522  of the second outer sidewall  514  by a second gap  525 . The second gap  525  exists along the entire length of the second inner and second outer sidewalls  509 ,  515  (with the length of the second inner and outer sidewalls  509 ,  515  being measured in a direction parallel to the longitudinal axis E-E of the housing  501 ). The first gap  524  has a first width W 1  measured in a direction transverse to the longitudinal axis E-E and the second gap  525  has a second width W 2  measured in a direction transverse to the longitudinal axis E-E. In the exemplified embodiment, the first and second widths W 1 , W 2  are the same. Furthermore, in the exemplified embodiment each of the first and second widths W 1 , W 2  is constant along the entirety of the length of the walls  508 ,  509 ,  514 ,  515  such that the first and second widths W 1 , W 2  are the same irrespective of the axial location along the first and second gaps  524 ,  525  that the first and second widths W 1 , W 2  are measured. As seen in  FIGS. 30 and 31 , the connection elements  561  of the shelf supports  560  extend through the openings  510 ,  511  in the first and second inner sidewalls  508 ,  509  and into the first and second gaps  524 ,  525 . 
     Furthermore, a first plurality of ribs  526  are located in the first gap  524  and extend between the inner surface  520  of the first outer sidewall  514  and the outer surface  517  of the first inner sidewall  508 . The first plurality of ribs  526  are oriented substantially horizontally and are spaced apart vertically. A second plurality of ribs  527  are located in the second gap  525  and extend between the inner surface  522  of the second outer sidewall  515  and the outer surface  519  of the second inner sidewall  509 . The second plurality of ribs  527  are substantially horizontally oriented and are spaced apart vertically. The first and second pluralities of ribs  526 ,  527  provide structural integrity to the cabinet  500 . 
     As best seen in  FIG. 32 , the first and second inner sidewalls  508 ,  509  extend from the front wall  513  to the rear wall  502  such that the first and second inner sidewalls  508 ,  509  are connected directly to both of the front and rear walls  513 ,  502 . The first and second inner sidewalls  508 ,  509  have a depth measured from the front wall  513  to the rear wall  502 . The first outer sidewall  514  extends from the front wall  513  to a free distal edge  528  and the second outer sidewall  514  extends from the front wall  513  to a free distal edge  529 . Thus, the first and second outer sidewalls  514 ,  515  are not connected to the rear wall  502  in the exemplified embodiment, although it is possible for the first and second outer sidewalls  514 ,  515  to be connected to the rear wall  502  in alternative embodiments. However, the first and second outer sidewalls  514 ,  515  have a depth measured from the front wall  513  to the free distal edges  528 ,  529  such that the depths of the first and second outer sidewalls  514 ,  515  are the same as the depths of the first and second inner sidewalls  508 ,  509 . This ensures that the first and second outer sidewalls  514 ,  515  completely conceal the first and second inner sidewalls  508 ,  509  when the cabinet  500  is surface mounted to a support surface. Specifically, when viewed from either side of the housing  501 , neither of the first and second inner sidewalls  508 ,  509  is visible. 
     A first cavity  530  is formed by the gap  524  between the first inner and outer sidewalls  508 ,  514  and a second cavity  531  is formed by the gap  525  between the second inner and outer sidewalls  509 ,  515 . Specifically, the first cavity  530  is defined by the outer surface  517  of the first inner sidewall  508 , the inner surface  520  of the first outer sidewall  514 , the portion  536  of the top wall  506  that extends between the first inner and first outer sidewalls  508 ,  514 , the portion  537  of the bottom wall  507  that extends between the first inner and first outer sidewalls  508 ,  514 , and a portion of the front wall  513  that extends between the first inner and first outer sidewalls  508 ,  514 . Similarly, the second cavity  531  is defined by the outer surface  519  of the second inner sidewall  509 , the inner surface  522  of the second outer sidewall  515 , the portion  538  of the top wall  506  that extends between the second inner and second outer sidewalls  509 ,  515 , the portion  539  of the bottom wall  507  that extends between the second inner and second outer sidewalls  509 ,  515 , and a portion of the front wall  513  that extends between the second inner and second outer sidewalls  509 ,  515 . In the exemplified embodiment, the first and second channels  530 ,  531  are in the shape of rectangles that are elongated in a direction parallel to the longitudinal axis E-E. 
     Because the first and second outer sidewalls  514 ,  515  are not connected to the rear wall  502  in the exemplified embodiment, the first cavity  530  has a first opening  532  on the rear surface  540  of the housing  501  and the second cavity  531  has a second opening  533  on the rear surface  540  of the housing  501 . In the exemplified embodiment, the openings  510  in the first inner sidewall  508  and the opening  532  on the rear surface  540  of the housing  501  are the only openings into the first cavity  530 . Similarly, the openings  511  in the second inner sidewall  509  and the opening  533  on the rear surface  540  of the housing  501  are the only openings into the second cavity  531 . 
     Turning again to  FIGS. 27 and 28 , it should be appreciated that the first and second outer sidewalls  514 ,  515  are exposed and the first and second inner sidewalls  508 ,  509  are completely concealed and cannot be seen from those provided views. Thus, the openings  510 ,  511  in the first and second inner sidewalls  508 ,  509  that are configured to receive connection elements of the shelf supports  580  are concealed or hidden from view by the first and second outer sidewalls  514 ,  515 . The housing  501  comprises a smooth and continuous outer surface  535  defined by outer surfaces of the top wall  506 , the bottom wall  507 , and the first and second outer sidewalls  513 ,  514 . The junction between the outer surfaces of the first and second outer sidewalls  513 ,  514  and the outer surfaces of the top and bottom walls  506 ,  507  is smooth and flush so that the outer surface  535  of the housing  501  is a smooth, unbroken surface. This creates the desired aesthetic without affecting the functionality of the cabinet  500 . 
     When the cabinet  500  is surface mounted to a support surface, the rear surface  540  of the housing  101  abuts against the support surface. Thus, the openings  532 ,  533  into the channels  530 ,  531  are also abutted directly against the support surface. As a result, when the cabinet  500  is surface mounted on a support surface, the first and second inner sidewalls  508 ,  509  cannot be seen at all because they are entirely concealed by the first and second outer sidewalls  514 ,  515 . Thus, the structure of the cabinet  500  creates a desired aesthetic. In certain embodiments, the first and second outer sidewalls  514 ,  515  do not have any holes or other non-aesthetically pleasing features. Of course, the outer surfaces of the first and second outer sidewalls  514 ,  515  may include a desired design or topography for aesthetic purposes. 
     In the exemplified embodiment, the housing  501  has a square shape such that each of the sidewalls is linear in only one direction. However, the invention is not to be so limited in all embodiments and the housing  501  may be other shapes including circular, triangular, hexagonal octagonal, or the like. Regardless of the shape of the housing  501 , the sidewalls of the housing  501  may be dual-walled such that inner sidewalls that have openings for receiving shelf supports are concealed or otherwise covered by outer sidewalls that are spaced apart from the inner sidewalls. Thus, it should be appreciated by persons skilled in the art that the cabinet  500  can be formed with many different shapes while still implementing the teachings set forth herein. 
     Referring to  FIGS. 33A and 33B , the shelf supports  560  will be described in detail. The shelf support  560  comprises a main body  564  and two of the connection elements  561  extending from the main body  564  in a spaced apart manner. Specifically, the main body  564  comprises a vertical wall  562  and a horizontal wall  563  extending from an end of the vertical wall  562 . The horizontal wall  563  forms a ledge of the shelf support  560  that is configured to at least partially support one of the shelves  580 . In the exemplified embodiment, the horizontal wall  563  and the vertical wall  562  are perpendicular to one another. 
     The connection elements  561  of the shelf support  560  extend from an upper portion of the vertical wall  562  of the main body  564 . Specifically, the connection elements  561  in the exemplified embodiment are L-shaped brackets comprising a first portion  565  extending horizontally from the vertical wall  562  in a direction opposite the horizontal wall  563  of the main body  564  and a second portion  566  extending vertically from the first portion  565  in a direction away from the vertical wall  562  of the body  564 . In the exemplified embodiment, the first portion  565  of the connection elements  561  is coplanar with the horizontal wall  563  of the main body  564 . 
     As noted above, the horizontal wall  563  of the main body  564  forms a ledge that supports one of the shelves  580 . When the shelf supports  560  are coupled to the housing  501 , the horizontal wall or ledge  563  of the shelf supports  560  extends into the cavity  504  of the housing  501  to support the shelves  580  thereon. The horizontal wall  563  comprises a top surface  567  and a bottom surface  568  opposite the top surface  567 . When installed, the shelf  580  rests atop and in direct surface contact with the top surface  567  of the horizontal wall  563 . The horizontal wall  563  extends from the vertical wall  562  to a distal edge  569 . Furthermore, the horizontal wall  563  is elongated from a first edge  570  to a second edge  571  along an axis F-F. 
     The shelf support  560  comprises an engagement feature  572  located on the bottom surface  578  of the horizontal wall/ledge  563 . In the exemplified embodiment, the engagement feature  572  is a protuberance extending from the bottom surface  578  of the horizontal wall  563 . However, the invention is not to be so limited and the engagement feature  572  can take on other forms in other embodiments, so long as it is configured to mate with an engagement feature of the shelf, as described in more detail below with particular reference to  FIG. 36 . In the exemplified embodiment, the engagement feature  572  comprises a first protuberance  572   a  and a second protuberance  572   b , although in other embodiments only one of the first and second protuberances  572   a ,  572   b  may be included or the engagement feature  572  may be a structure that is not a protuberance (such as a notch or the like). 
     In the exemplified embodiment, the first and second protuberances  572   a ,  572   b  are located along the bottom surface  568  of the horizontal wall  563  so as to be spaced apart from the distal edge  569  and spaced apart from an inner surface  573  of the vertical wall  562 . Furthermore, the first and second protuberances  572   a ,  572   b  are elongated in a direction of the axis F-F. The first protuberance  572   a  extends from the first edge  570  a short distance towards the second edge  571 , an end face of the first protuberance  572   a  being flush with the first edge  570 . The second protuberance  572   b  extends from the second edge  571  a short distance towards the first edge  570 , an end face of the second protuberance  572   b  being flush with the second edge  571 . In the exemplified embodiment, the first and second protuberances  572   a ,  572   b  are spaced apart from one another, but in other embodiments they may be connected to form a single protuberance extending along the bottom surface  578  of the horizontal wall  563 . In the exemplified embodiment, each of the first and second protuberances  572   a ,  572   b  are cylindrical or conical-shaped and elongated in the direction of the axis F-F as noted above. Thus, the first and second protuberances  572   a ,  572   b  have curved, and specifically convex, outer surfaces in the exemplified embodiment. As will be discussed further below, the first and second protuberances  572   a ,  572   b  assist with alignment between the shelf  580  and the shelf support  560 . 
     Referring to  FIGS. 34A-D , the shelf  580  will be described. The shelf  580  comprises a top surface  582  and a bottom surface  583  opposite the top surface. More specifically, the shelf  580  comprises a horizontal support member  581  that forms the top surface  582  and the bottom surface  583  of the shelf  580 . The horizontal support member  581  also comprises a front edge  584  and a rear edge  585  opposite the front edge  584 . The horizontal support member  581  is elongated between lateral edges  610 ,  611  of the shelf  580  that extend between the front and rear edges  584 ,  585 . The shelf  580  also comprises a concealment wall  586  extending from the front edge  584  of the horizontal support member  581 . A first portion  587  of the concealment wall  586  extends below the bottom surface  583  of the horizontal support member. The concealment wall  586  has a front surface  588  and a rear surface  589  opposite the front surface  588 . 
     Furthermore, the shelf  580  comprises a first tab  590  and a second tab  591 . The first and second tabs  590 ,  591  protrude from the rear surface  589  of the concealment wall  586  in a direction towards the rear edge  585  of the horizontal support member  581 . In the exemplified embodiment, the first and second tabs  590 ,  591  are located below the bottom surface  583  of the horizontal support member  581  so that the first and second tabs  590 ,  591  are entirely spaced apart from the bottom surface  583  of the horizontal support member  581 . Specifically, the first tab  590  is spaced from the bottom surface  583  of the horizontal support member  581  by a first gap G 1  and the second tab  591  is spaced from the bottom surface  583  of the horizontal support member  581  by a second gap G 2 . Thus, a first receiving slot  612  is formed between the bottom surface  583  of the shelf  580  and the first tab  590  and a second receiving slot  613  is formed between the bottom surface  583  of the shelf  580  and the second tab  591 . 
     In the exemplified embodiment, the first and second tabs  590 ,  591  are arcuate shaped tabs. Thus, in the exemplified embodiment, the first tab  590  comprises a concave inner surface  592  that defines a first notch  593  and the second tab  591  comprises a concave inner surface  594  that defines a second notch  595 . The concave inner surfaces  592 ,  594  of the first and second tabs  590 ,  591  face the bottom surface  583  of the horizontal support member  581 . The first and second notches  593 ,  595  are configured to receive one of the engagement features  572  of one of the shelf supports  560  when the shelf  580  is resting on the shelf supports  560  as described herein below. Of course, the first and second tabs  590 ,  591  need not be arcuate in all embodiments and in other embodiments they may take on other shapes while still having the first and second notches  593 ,  595 . For example, the first and second tabs  590 ,  591  could be square-shaped or the like while defining a square-shaped notch. However, so long as the notch is configured to interact/mate with the engagement feature  572  on the shelf support  560 , the exact shape of the notch is not to be limiting of the present invention. 
     The shelf  580  further comprises a first guide rib  600  adjacent to the first tab  590  and a second guide rib  601  adjacent to the second tab  591 . The first tab  590  is located between the first guide rib  600  and the first lateral edge  610  of the shelf  580  and the second tab  591  is located between the second guide rib  601  and a second lateral edge  611  of the shelf  580 . In the exemplified embodiment, there is no space between the first guide rib  600  and the first tab  590  and there is no space between the second guide rib  601  and the second tab  591 . Stated another way, the first guide rib  600  is coupled directly to the first tab  590  and the second guide rib  601  is coupled directly to the second tab  591  (best shown in  FIG. 36 ). In the exemplified embodiment, the first receiving slot  612  is defined collectively by the first tab  590  and the first guide rib  600  and the second receiving slot  613  is defined collectively by the second tab  591  and the second guide rib  601 . 
     The first and second guide ribs  600 ,  601  are connected directly to the rear surface  589  of the concealment wall  586  and to the bottom surface  583  of the horizontal support member  581 . Thus, unlike the tabs  590 ,  591 , the first and second guide ribs  600 ,  601  are not spaced apart from the bottom surface  583  of the horizontal support member  581 . The first guide rib  600  comprises a first linear portion  602  extending from the rear surface  589  of the concealment wall  586  and a second linear portion  603  extending from the first linear portion  602  to a terminal end. The second guide rib  601  comprises a first linear portion  604  extending from the rear surface  589  of the concealment wall  586  and a second linear portion  605  extending from the first linear portion  605  to a terminal end. The first and second linear portions  602 ,  603  of the first guide rib  600  are oriented at an obtuse angle relative to one another and the first and second linear portions  604 ,  605  of the second guide rib  601  are oriented at an obtuse angle relative to one another. The second linear portions  603 ,  605  of the first and second guide ribs  600 ,  601  converge towards one another as they extend from the first linear portions  602 ,  604  of the first and second guide ribs  600 ,  601  respectively. Thus, the second linear portions  603 ,  605  extend in a direction away from the lateral edge of the shelf  580  that they are positioned closest to. The first and second guide ribs  600 ,  601  assist in guiding the protuberances  572   a ,  572   b  of the shelf supports  560  into the receiving channels  593 ,  595  of the tabs  590 ,  591 . 
     The shelf  580  also comprises an elongated strengthening rib  615  extending from the bottom surface  583  of the shelf  580 . The elongated strengthening rib  615  has a first end  616  and a second end  617  opposite the first end  616 . In the exemplified embodiment, the first tab  590  is located between the first end  616  of the elongated strengthening rib  615  and the first lateral edge  610  of the shelf  580  and the second tab  591  is located between the second end  617  of the elongated strengthening rib  615  and the second lateral edge  611  of the shelf  580 . Thus, the elongated strengthening rib  615  does not extend across the entirety of the length of the shelf  580  measured between the first and second lateral edges  610 ,  611  of the shelf  580 . Rather, the elongated strengthening rib  615  terminates short of the first and second lateral edges  610 ,  611  of the shelf  580  to facilitate ease of installation as discussed below. 
       FIGS. 35 and 36  illustrate the shelf supports  560  coupled to the housing  501  and the shelves  580  resting atop of the shelf supports  560  and the interaction between the protuberances  572   a ,  572   b  of the shelf supports  560  and the tabs  590 ,  591  of the shelves  580 . To assemble the cabinet  500 , first the shelf supports  560  are coupled to the housing  501  so that one shelf support  560  is coupled to each of the first and second inner sidewalls  508 ,  509  of the housing  501  at the same elevation. This is accomplished by inserting the connection elements  561  of the shelf supports  560  into the openings  510 ,  511  of the first and second inner sidewalls  508 ,  509 . When the shelf supports  560  are coupled to the housing  501  as shown, the horizontal wall or ledge  563  of the shelf supports  560  extend from the sidewall  508 ,  509  of the housing  501  that they are attached to into the cavity  504 . 
     Next, one of the shelves  580  is slidably inserted into the cavity  504  of the housing  501  by resting the bottom surface  583  of the horizontal support member  581  of the shelf  580  on the top surface  567  of the horizontal wall or ledge  563  of two of the shelf supports  560  on the opposing sidewalls  508 ,  509 . Next, the shelf  580  is slid into the cavity  504  while the bottom surface  583  of the horizontal support member  581  remains in sliding contact with the top surface  567  of the horizontal wall or ledge  563 . This is possible in part because the elongated strengthening rib  615  does not extend the full length of the shelf  580 , thereby leaving space for the shelf supports  560  to pass between the elongated strengthening rib  615  and the opposing lateral side edges  610 ,  612  of the shelf  580  during installation of the shelf  580 . 
     As the shelf  580  is slid into the cavity  504 , portions of the horizontal wall or ledge  563  that comprises the engagement features  572  extend into the first and second receiving slots  612 ,  613  defined between the first and second tabs  590 ,  591  and the bottom surface  583  of the shelf  580 . Simultaneously, the protuberances  572   a ,  572   b  of the shelf supports  560  are guided into the first and second notches  593 ,  595  of the tabs  590 ,  591 . When the shelf  580  is fully installed in the cavity  504 , one of the protuberances  572   a ,  572   b  of each shelf support  560  on which the shelf  580  is positioned is located within the notch  583 ,  585  of one of the tabs  590 ,  591  of the shelf  580 . Furthermore, a portion of the horizontal wall or ledge  563  of the shelf support  560  is located within the gap between the tabs  590 ,  591  and the bottom surface  583  of the horizontal support member  581  of the shelf  580  (i.e., within one of the receiving slots  612 ,  613 ). This locks the shelf  580  in place within the cavity  504  so that it cannot be readily moved side-to-side or up-down within the cavity  504 . 
     In the exemplified embodiment, the shelf  580  can be readily removed from the cavity  504  by sliding the shelf  580  in the opposite direction out of the cavity  504 . However, in other embodiments the shelf  580  and shelf supports  560  may include additional locking features, such as an indent/detent that interact/mate with one another when the shelf  580  is fully installed in the cavity  504 . For example, an indent protruding from the bottom surface  583  of the shelf  580  may interact with a detent in the shelf support  560  (or vice versa) so that an action in addition to mere sliding is needed to remove the shelf  580  from the cavity  504 . 
     In the exemplified embodiment, the first and second tabs  590 ,  591  are C-shaped. Although described herein as being arcuate and C-shaped, the first and second tabs  590 ,  591  need not be arcuate in all embodiments. In other embodiments, the tabs  590 ,  591  may be flat plates that are spaced apart from the bottom surface  583  of the horizontal support member  581  of the shelf  580  so that during sliding of the shelf  580  onto the shelf support  560 , the horizontal wall or ledge  563  of the shelf support  560  nests in the gap or space between the protrusions  590 ,  591  and the bottom surface  583  of the horizontal support member  581  of the shelf  580 . Along the same lines, in some embodiments the shelf supports  560  may not have protuberances  572   a ,  572   b , but simply trapping the horizontal wall or ledge  563  of the shelf supports  560  within the space between the protrusions  590 ,  591  and the bottom surface  583  of the horizontal support member  581  is sufficient to securely couple the shelves  580  to the shelf supports  560 . 
     Referring to  FIGS. 37-39 , a cabinet  700  will be described in accordance with another embodiment of the present invention. The cabinet  700  generally comprises a housing  701 , a door  702  that is coupled to the housing  701 , and a storage system  799  coupled to the housing  701  and located within a cavity  707  of the housing  701 . The storage system  799  comprises a plurality of support members  720  that are configured to be coupled to the housing  701 , a support rod  750  that is configured to be supported by the support members  720 , and at least one storage receptacle  780  that is configured to be slidably mounted to the support rod  750 . In the exemplified embodiment, there are a plurality of storage receptacles  780 ,  781 ,  782 , but one storage receptacle may be used in alternative embodiments. In some embodiments there may be a plurality of different storage receptacles such as those shown in  FIGS. 37 and 38  mounted to the support rod  750  and in other embodiments there may be a plurality of the same storage receptacles mounted to the support rod  750 . Thus, there is flexibility for the end user to determine the best storage receptacles for his/her needs based on the types of items that are being stored in the cabinet  700 . Additional embodiments of storage receptacles will be described below with reference to  FIGS. 47-51B . 
     The door  702  may be altered between an open state (shown in  FIG. 37 ) and a closed state (not shown) as would be appreciated by persons skilled in the art. The door  702  may be in the open or closed states with the storage system  799  located within the cavity  707  of the housing  701 . Thus, the storage system  799  does not interfere with the ability to close the door  702 . The storage system  799  provides a storage solution for items that are typically stored within a cabinet to allow a user easy access to those items when the door  702  is in the open state. 
     The housing  701  extends from a bottom end  703  to a top end  704  along an axis G-G. The housing  701  comprises a rear wall  705  and a plurality of sidewalls  706  that collectively define the cavity  707 , which has an opening  708  that can be enclosed by the door  702  when the door  702  is in the closed state. In the exemplified embodiment the housing  701  has a square or rectangular shape and thus the plurality of sidewalls  706  comprises a top wall  709 , a bottom wall  710 , a first sidewall  711 , and a second sidewall  712  opposite the first sidewall  711 . However, the invention is not to be so limited in all embodiments and the housing  701  may take on any desired shape and thus the plurality of sidewalls  706  may include more or less sidewalls than indicated and shown in the drawings. 
     In the exemplified embodiment, the first sidewall  711  comprises a plurality of openings  713  and the second sidewall  712  comprises a plurality of openings  714  that are aligned with the openings  713  in the first sidewall  711 . The openings  713 ,  714  are configured to receive portions of the support members  720  to facilitate coupling of the support members  720  to the first and second sidewalls  711 ,  712  of the housing  701 . 
     As noted above, in the exemplified embodiment there are three different storage receptacles  780 ,  781 ,  782  slidably mounted to the support rod  750 . Specifically, the first storage receptacle  780  comprises a drawer and a shelf, the second storage receptacle  781  has a plurality of distinct compartments accessible through openings in a lid, and the third storage receptacle  782  has two separate chambers for storing different items. Of course, the specific configuration and arrangement of the storage receptacles  780 ,  781 ,  782  is not to be limiting of the invention in all embodiments. The storage receptacles  780 ,  781 ,  782  may take on other structural forms different than that shown in the exemplified embodiment. The purpose of the storage receptacles  780 ,  781 ,  782  is to hold and store items within the cavity  704  of the cabinet  700 . Thus, the storage receptacles  780 ,  781 ,  782  may be designed and specifically tailored to store different types and sizes of items. In the exemplified embodiment and by way of example only, the first storage receptacle  780  may be best suited for storing hair clips or other small items, the second storage receptacle  780  may be best suited for storing items with a handle, such as a toothbrush, make-up applicator, hairbrush, Q-tips, or the like, and the third storage receptacle  782  may be best suited for storing toothpaste tubes, deodorant, or the like. The storage receptacles  780 ,  781 ,  782  may be formed of a transparent plastic material, or they may be formed of a non-transparent plastic material, or they may be formed of a material other than plastic such as wood, metal, or the like. 
     Referring to  FIGS. 40A and 40B , the structural details of the support members  720  of the storage system  799  will be described in more detail. As noted above, at least one of the support members  720  is coupled to each of the first and second sidewalls  711 ,  712  of the housing  701  to retain the support rod  750  within the cavity  707  of the housing  701 . It is possible that more than one support member  720  may be coupled to each of the first and second sidewalls  711 ,  712  in other embodiments thereby enabling multiple support rods  750  (i.e., multiple storage systems  799 ) to be positioned within the cavity  707  of the housing  701  at different elevations. Within each storage system  799 , the support member  720  coupled to the first sidewall  711  should be in transverse alignment (i.e., at the same vertical height within the cavity  707 ) with the support member  720  coupled to the second sidewall  712  so that the support rod  750  is maintained in a level manner across the cavity  707 . 
     In the exemplified embodiment, the support members  720  comprise a first wall  721  and a second wall  722  extending perpendicular from the first wall  721 . Specifically, the first wall  721  comprises a first surface  723  and a second surface  724  opposite the first surface  723 . In the exemplified embodiment, the second wall  722  protrudes from the first surface  723  of the first wall  721 . When coupled to the housing  701 , the first wall  721  is adjacent to (and possibly in contact with) one of the first and second sidewalls  711 ,  712  and the second wall  722  extends into the cavity  707  of the housing  701 . Of course, it is possible in other embodiments for the first wall  721  to be omitted and for the support member  720  to still function in the manner described herein. 
     In the exemplified embodiment, the support member  720  comprises a first protrusion  725  and a second protrusion  726  extending from the second surface  724  of the first wall  721 . In the exemplified embodiment, the first protrusion  725  has a square-shaped cross-sectional profile and the second protrusion  726  has a circular shaped cross-sectional profile. However, the invention is not intended to be limited by this and both of the first and second protrusions  725 ,  726  may have the same shape, such as both having square or both having circular (or other) cross-sectional profiles. The first and second protrusions  725 ,  726  are configured to be inserted into the openings  713 ,  714  in the sidewalls  711 ,  712  of the housing  701  to couple the support member  720  to the housing  701 . Generally, the first and second protrusions  725 ,  726  mate/interact with the openings  713 ,  714  via a friction fit, but other types of coupling are possible (threaded engagement, use of nuts or bolts, or the like). In other embodiments, the first and second protuberances  725 ,  726  could be hooks or brackets such as those that have been described above particularly with reference to  FIGS. 33A and 33B . 
     The support member  720  also comprises a receiving slot  727 . In some embodiments, the support member  720  need only have a structure that facilitates coupling of the support member  720  to the housing  701  and a receiving cavity that enables the support member  720  to support the support rod  750  as discussed further herein below. Thus, the support member  720  can be significantly reduced in size without affecting its functionality as described herein. 
     In the exemplified embodiment, the receiving slot  727  is defined by a first slot wall  728 , a second slot wall  729  that is spaced apart from the first slot wall  728 , a bottom slot wall  730  that extends between the first and second slot walls  728 ,  729  and forms a floor  739  of the receiving slot  727 , and a portion of the first wall  721  that extends between the first and second slot walls  728 ,  729 . Each of the first and second slot walls  728 ,  729  extends from the first surface  723  of the first wall  721  as well as from a bottom surface  733  of the second wall  722 . The bottom slot wall  730  extends from the front surface  723  of the first wall  721  and is spaced apart from the second wall  722 . The receiving slot  727  comprises an open top end  731  and an open side  732 . 
     The first slot wall  728 , the second slot wall  729 , and the bottom slot wall  730  collectively define a U-shaped structure designed to receive the support rod  750  therein. In some embodiments the support member  720  may comprise only the first slot wall  728 , the second slot wall  729 , the bottom slot wall  730 , and the portion of the first wall  721  that extends between the first and second slot walls  728 ,  729 . In such an embodiment, one of the connection protrusions  725 ,  726  may extend from the rear surface  724  of the portion of the first wall  721  to couple the support member  720  to the housing  701 . Thus, in some embodiments the full structure of the support member  720  is not needed to achieve the function described herein. 
     Moreover, it should be noted that the top surface of the second wall  722 , which protrudes from the inner surface of the sidewall  711 ,  712  of the housing  701  when the support member  720  is coupled to the housing  702 , is a flat, planar surface. Thus, in situations where the support member  720  is not supporting s support rod  750 , a shelf may be supported by the top surfaces of the second walls  722  of the support members  720 . Moreover, it may be possible to support a shelf by the top surface of the second walls  722  of the support members  720  even when the support members  720  are supporting a support rod  750 . For example, the thickness of the second wall  722  could be increased to ensure that the top surface of the second wall  722  is above a top end of any receptacle being supported by the support rod  750  to ensure there is no interference between the receptacles and the shelf. 
     Referring to  FIG. 41 , the housing  701  is illustrated with two of the support members  720  in preparation for coupling to the housing  701 . Specifically, the dashed lines leading from the first and second protrusions  725 ,  726  of the support members  720  to the openings  713 ,  714  in the first and second sidewalls  711 ,  712  illustrate how the support members  720  are coupled to the housing  701  via engagement between the protrusions  725 ,  726  and the openings  713 ,  714 . 
       FIG. 42  illustrates the housing  701  with one of the support members  720  coupled to the first sidewall  711  and one of the support members  720  coupled to the second sidewall  712  and with the support rod  750  prepared to be inserted into the cavity  707  and supported by the support members  720 . The support members  720  on the opposite first and second sidewalls  711 ,  712  are aligned with one another along a horizontal axis that is perpendicular to the axis G-G of the housing  701 . This ensures that the support rod  750  is level when supported in the cavity  707  of the housing  701 . When the support members  720  are coupled to the housing  701 , the receiving slots  727  of the support members  720  are adjacent to the rear wall  705  of the housing  701 . This ensures that when the support rod  750  is mounted to the support members  720 , the support rod  750  is located in a rear portion of the cavity  707  so that there is sufficient space for the storage receptacles  780 ,  781 ,  782  within the front portion of the cavity  707  where they are accessible to a user. 
     In the exemplified embodiment, the support rod  750  is a metal rod. However, the invention is not to be so limited and the support rod  750  may be formed of any material, preferably rigid material, such as hard plastic, wood, or the like. The support rod  750  should be rigid so that it can support the weight of the storage receptacles  780 ,  781 ,  782  and any items stored therein without significant bending of the support rod  750 . The support rod  750  extends from a first end  751  to a second end  752  along an axis H-H. When supported in the cavity  707 , the axis H-H of the support rod  750  is perpendicular to the axis G-G of the housing  701 . In the exemplified embodiment, the support rod  750  has a rectangular transverse cross-sectional shape. However, the invention is not to be so limited and the support rod  750  may have a circular, triangular, or other shaped transverse cross-sectional profile without affecting its functionality. Thus, the exact transverse cross-sectional shape of the support rod  750  is not to be limiting of the present invention in all embodiments. The support rod  750  must merely be elongated and configured to slidably support the storage receptacles  780 ,  781 ,  782  as described herein. 
     Referring to  FIGS. 42, 43, 45, and 46  concurrently, the support rod  750  is supported within the cavity  707  of the housing  701  by placing the first end  751  of the support rod  750  into the receiving slot  727  of the support member  720  that is coupled to the first sidewall  711  and placing the second end  752  of the support rod  750  into the receiving slot  727  of the support member  720  that is coupled to the second sidewall  712 . Thus, the first end  751  of the support rod  750  passes through the open top end  731  of the receiving slot  727  of the support member  720  on the first sidewall  711  while the second end  752  of the support rod  750  passes through the open top end  731  of the receiving slot  727  of the support member  720  on the second sidewall  712 . The first and second ends  751 ,  752  of the support rod  750  are supported by the floor  739  of the support members  720  formed by the bottom slot wall  730 . The support rod  750  extends through the open sides  732  of the receiving slot  727  of the support members  720 . The support rod  750  is illustrated in this supported state in  FIG. 43 . 
     Although in the exemplified embodiment the support rod  750  is a separate component from the first and second support members  720 , the invention is not to be so limited. In other embodiments, the support rod  750  may be integral with the first and second support members  720 . Alternatively, the support rod  750  may include connection elements that facilitate coupling of the support rod  750  to the first and second sidewalls  711 ,  712  of the housing  701  directly so that the first and second support members  720  may be omitted. 
     Returning to the exemplified embodiment, when the support rod  750  is coupled to the support members  720  on the opposing sidewalls  711 ,  712 , the support rod  750  extends transversely across the cavity  707  from the first sidewall  711  to the second sidewall  712 . Due to the receiving slots  727  of the support members  720  being located adjacent the rear wall  705  of the housing  701  as discussed above, the support rod  750  is located in a rear portion of the cavity  707  adjacent to the rear wall  705 . However, as best seen in  FIG. 46 , the support rod  750  is spaced apart from the rear wall  705  of the housing  701  by a gap G 3 . The gap G 3  provides a space for a mounting element of the storage receptacles  780 ,  781 ,  782  to be positioned to couple the storage receptacles  780 ,  781 ,  782  to the support rod  750  as discussed further below. A ratio of a depth of the cavity  707  (measured from the rear wall  705  to the open front end  708 ) to a depth of the gap G 3  may be between 25:1 and 15:1, more specifically between 23:1 and 17:1, and still more specifically between 21:1 and 19:1. Thus, the support rod  750  is located in a rear 10%, or even a rear 5% of the depth of the cavity  707 . 
     Referring to  FIGS. 43-46  concurrently, the coupling of the storage receptacle  782  to the support rod  750  will be described. The description that follows is with reference to the storage receptacle  782 , but the coupling of any of the storage receptacles  780 ,  781  or any other storage receptacle with a design different than the ones shown will be the same as that described herein. The storage receptacle  782  comprises a front surface  783  that is adjacent to and faces the open front end  708  of the cavity  707  when installed and an opposite rear surface  784 . Furthermore, the storage receptacle  782  comprises a mounting element  785  on the rear surface  784 . Of course, the mounting element  785  need not be located on the rear surface  784  in all embodiments and it could be at other locations on the storage receptacle  782  without affecting its ability to couple the storage receptacle  782  to the support rod  750 . In the exemplified embodiment, the mounting element  785  is a hook-like element protruding from the rear surface  784  of the storage receptacle  782 . Thus, the mounting element  785  comprises a first portion  786  protruding from the rear surface  784  and a second portion  787  protruding downwardly from the first portion  786 . The second portion  787  of the mounting element  785  is spaced apart from the rear surface  784  of the storage receptacle  782  by a gap G 4 . The gap G 4  is configured to receive the support rod  750  to thereby couple the storage receptacle  782  to the support rod  750 . In the exemplified embodiment, the mounting element  785  is located at or near a top portion of the rear surface  784 . 
     Although the hook-like mounting element is described in the exemplified embodiment, the mounting element  785  could take on other structural forms while still facilitating a sliding coupling between the storage receptacle  782  and the support rod  750 . For example, the support rod  750  could have an elongated channel on its major surface that faces away from the rear wall  705  and the mounting element  785  could be a structure that fits within the elongated channel to couple the mounting element  785  to the support rod  750  while permitting sliding of the mounting element  785  and the storage receptacle  782  relative to the support rod  750 . For example, the mounting element  785  and the channel could be an “I” shaped cross-section to facilitate the coupling, or the mounting element  785  and the channel could fit together in the manner of a dovetail joint. The mounting element  785  could also be a clamp or the like that is capable of mating, preferably in a slidable manner, with the support rod  750 . In such a situation, the clamp could include a locking feature such as a tightening knob that can create a sufficiently tight fit between the receptacle  782  and the support rod  750  that the storage receptacle  782  is locked in position and can no longer slide along the support rod  750 . Thus, variations in the manner of coupling the storage receptacle  782  to the support rod  750  are possible within the scope of the invention described herein. Generally, the storage receptacle  782  should be detachably mountable to the support rod  750  so that when the storage receptacle  782  is mounted to (or coupled to) the support rod  750 , the storage receptacle  782  can slide along the storage rod  750  while remaining mounted to the support rod  750 . The cross-sectional shapes of the storage rod  750  and the gap G 4  could be modified while still ensuring couplability and slidability therebetween. 
     In the exemplified embodiment, the storage receptacle  782  is coupled to the support rod  750  by moving the storage receptacle  782  into the cavity  707  and then lowering the storage receptacle  782  so that the mounting element  785  engages the support rod  750 . More specifically, as the storage receptacle  782  is lowered, the support rod  750  enters into the gap G 4  between the second portion  787  of the mounting element  785  and the rear surface  784  of the storage receptacle  782 . The thickness of the support rod  750  is less than the width of the gap G 4  so that the thickness of the support rod  750  can fit entirely within the gap G 4 . When the mounting element  785  is coupled to the support rod  750 , the first portion  786  of the mounting element  785  rests atop of a top surface  760  of the support rod  750  and the second portion  787  of the mounting element  785  is positioned within the gap G 3  between the support rod  750  and the rear wall  705  of the housing  701 . 
     As shown with arrows and ghost lines in  FIG. 44 , the storage receptacle  782  can slide along the support rod  750  in the direction of the axis H-H of the support rod  750  (in both directions along the axis H-H) while the storage receptacle  782  remains mounted to the support rod  750 . The storage receptacle  782  may be slid side-to-side within the cavity  707  for any reason, such as to make space for another storage receptacle  782  to be mounted to the support rod  750  or simply to relocate the storage receptacle  782  within the cavity  707  of the housing  701 . The storage receptacle  782  can slide along and relative to the support rod  750  while the storage receptacle  782  remains coupled to the support rod  750 . The storage receptacle  782  does not need to be separated from the support rod  750  before it is slid or otherwise relocated within the cavity  707 . Thus, the storage receptacle  782  (and any other storage receptacles  780 ,  781 ) is detachably mounted to the support rod  750  and is slidable along the support rod  750  when mounted thereto. The storage receptacles  780 ,  781 ,  782  may be swapped out, moved, interchanged, or the like as may be desired. 
     As noted above, in the exemplified embodiment the mounting element  785  is located at a top end of the rear surface  784  of the storage receptacle  782 . As a result, when the storage receptacle  782  is mounted to the support rod  750  as described herein, the storage receptacle  782  will have a tendency for its bottom end to pull/angle towards the rear wall  705  of the housing. In that regard, the storage receptacle  782  may also comprise one or more leveling protrusions  790  extending from the rear surface  784  of the storage receptacle  782  at or adjacent to a bottom end or portion of the rear surface  784 . Of course, the leveling protrusion  790  may be located higher up along the rear surface  784  closer to the top end while still performing its function. Thus, the exact location on the leveling protrusion  790  on the rear surface  784  is not to be limiting of the present invention in all embodiments. Furthermore, in some embodiments the leveling protrusion  790  may be altogether omitted. 
     The one or more leveling protrusions  790  are structural features that protrude from the rear surface  784  of the receptacles  780 ,  781 ,  782 . There may be two leveling protrusions  790  such that one leveling protrusion  790  is adjacent to each opposing sidewall of the receptacles  780 ,  781 ,  782 , there may be more than two leveling protrusions  790 , or there may be a single leveling feature such as a protrusion centered along the rear surface  784  or an elongated protrusion that extends across the width of the rear surface  784 . 
     When included, the leveling protrusion  790  ensures that the storage receptacle  782  remains level as it is coupled to and slides along the support rod  750 . Specifically, because the storage receptacle  782  is only coupled to the support rod  750  at its top end via the mounting element  785 , the storage receptacle  782  might tend to pivot so that its bottom end moves closer to the rear wall  705  of the housing  701  when items are stored in the storage receptacle  782 . The leveling protrusion  790  prevents this pivoting of the storage receptacle  782  and maintains the desired orientation of the storage receptacle  782  within the cavity  707  of the housing  701 . Specifically, the leveling protrusion  790  contacts the rear wall  705  of the housing  701  when the receptacle  780 ,  781 ,  782  is mounted to the support rod  750 , thereby keeping the rear wall  784  of the storage receptacle  782  spaced apart from the rear wall  705  of the housing  701  and keeping the storage receptacle  782  level within the cavity  707 . 
     Referring to  FIG. 47 , a cabinet  800  which is similar to the cabinet  700  described above is illustrated. The cabinet  800  is identical to the cabinet  700  with the only difference being the specific style and/or structure of the storage receptacles. Thus, the description of the cabinet  700  above is entirely applicable to the cabinet  800  except for the distinctions noted herein. 
     The cabinet  800  generally comprises a housing  801  that defines a cavity  807  and a storage system  899  coupled to the housing  801  and located within the cavity  807 . Of course, the cabinet  800  may also include shelves, although such shelves are not depicted here. The storage system  899  comprises two support members  820  that are identical to the support members  720  described above, a support rod  850  that is identical to the support rod  750  described above, and three storage receptacles  860 ,  870 ,  880 . The three storage receptacles  860 ,  870 ,  880  are structurally different than the storage receptacles  780 ,  781 ,  782  described above. In fact, the difference among the storage receptacles is the only difference between the cabinet  800  and the cabinet  700 . The storage receptacles  860 ,  870 ,  880  will be described herein below. 
       FIGS. 48A and 48B  illustrates the first storage receptacle  860 . The first storage receptacle  860  comprises a front wall  861 , a rear wall  862 , and a cavity  863  having an open top end. In this particular embodiment, the opening  864  into the cavity  863  is angled so that it is obliquely oriented relative to the longitudinal axis of the housing  801  when installed therein. The first storage receptacle  860  comprises a mounting element  865  on its rear surface  862  that is configured to mount the first storage receptacle  860  to the support rod  850 . The mounting element  865  is a hook-like element as described in the previous embodiment, although it can take other forms as also described above. The first storage receptacle  860  also comprises first and second leveling protrusions  866  protruding from the rear surface  862 . The first and second leveling protrusions  866  are configured to contact the rear wall of the housing  801  of the cabinet  800  to maintain the first storage receptacle  860  in a level orientation as has been described above. 
     Turning to  FIGS. 49A and 49B , the second storage receptacle  870  is illustrated. The second storage receptacle  870  comprises a front wall  871  and a rear wall  872 . The front wall  871  comprises an opening  874  into a cavity  873 . Thus, in this embodiment the opening  874  is oriented parallel to the longitudinal axis of the housing  801  when installed. Moreover, similar to the previous embodiment, the second storage receptacle  870  comprises a mounting element  875  and first and second leveling protrusions  876 . The descriptions of the mounting elements and leveling protrusions above is applicable to those same features on the second storage receptacle  870 . 
     Turning to  FIGS. 50A and 50B  a fourth storage receptacle  890  is illustrated. The fourth storage receptacle  890  comprises a front wall  891  and a rear wall  892 . In this embodiment, the fourth storage receptacle  890  comprises first and second drawers  893 ,  894  that fit within a cavity  895 . The first and second drawers  893 ,  894  can be pulled out of the cavity  895  to allow a user with access to any items stored in the drawers  893 ,  894  and they can be pushed back into the cavity  895  for storage. The drawers  893 ,  894  are arranged with one on top of the other, but they could be positioned in a side-by-side manner in other embodiments. Moreover, a storage receptacle of this type could have just a single drawer or more than two drawers in different embodiments. Further still, the storage receptacle  890  could include one or two doors instead of drawers in other embodiments. Moreover, similar to the previous embodiment, the fourth storage receptacle  880  comprises a mounting element  896  and first and second leveling protrusions  897 . The descriptions of the mounting elements and leveling protrusions above is applicable to those same features on the second storage receptacle  870 . 
     Referring to  FIGS. 51A and 51B , the third storage receptacle  880  is illustrated in front and rear perspective views. The third storage receptacle  880  is a bit different structurally than any of the others. This is because the third storage receptacle  880  is specifically designed for holding two rolls of toilet paper. Thus, the third storage receptacle  880  provides users with the option of storing toilet paper rolls in a cabinet such as a medicine cabinet in a bathroom. The third storage receptacle  880  comprises a back plate  881  having a front surface  882  and a rear surface  883 . A mounting element  884  and two leveling protrusions  885  are located on (and protrude/extend from) the rear surface  883  of the back plate  881  much like the other embodiments of the storage receptacles described herein. In this embodiment, a ledge member  886  protrudes from the front surface  882  of the back plate  881 . The ledge member  886  comprises a floor  887  having two arcuate/concave portions  888 ,  889 . Thus, one roll of toilet paper can be positioned on each of the two arcuate/concave portions  888 ,  889  of the floor  887  of the ledge member  886  for storage thereof. The third storage receptacle  880  can be hung on the support rod  850  as shown in  FIG. 47 . 
     Referring to  FIGS. 52-59 , a storage system  900  will be described in accordance with another embodiment of the present invention. The storage system  900  utilizes similar concepts and components as the storage system  799 , except the storage system  900  is configured to be mounted directly to a support surface such as a wall, an outer surface of a cabinet, or virtually any other substantially vertical surface upon which it may be desired to store items. 
     Referring first to  FIGS. 52-54 , the storage system  900  generally comprises a support member  910 , a plurality of storage receptacles  920 ,  921 ,  922  that are configured to be mounted to the support member  910 , a hook member  923  from which various articles may be hung, a first end cap  930 , a second end cap  940 , and one or more fasteners  950 , which are screws in the exemplified embodiment. The storage receptacles  920 ,  921 ,  922  are identical to the storage receptacles  780 ,  781 ,  782  shown in  FIG. 37  and described above. However, it should be appreciated that any of the other storage receptacles described herein and other styles and shapes and types of storage receptacles not described herein could be used with the support member  910  and form a part of the storage system  900 . 
     Each of the storage receptacles  920 ,  921 ,  922  comprises a mounting element  924  and one or more leveling protrusions  929 , and the descriptions of those features above is applicable here. That is, the mounting elements  924  are configured to mount the storage receptacles  920 ,  921 ,  922  to the support member  910  and the leveling protrusions  929  are configured to abut the support surface (e.g., wall) when the storage receptacles  920 ,  921 ,  922  are mounted to the support member  910  to maintain the storage receptacles  920 ,  921 ,  922  at a desired level orientation. The mounting elements  924  and leveling protrusions  929  will be described in greater detail below with reference to  FIGS. 55 and 56 . 
     Referring to  FIGS. 53, 55, and 56 , the storage system  900  will be further described. The support member  910  comprises a front surface  911  and a rear surface  912 . When the support member  910  is mounted to a support surface (e.g. a wall or the like)  999 , the rear surface  912  of the support member  910  faces the support surface  999  and the front surface  911  of the support member  910  faces away from the support surface  999 . The support member  910  comprises two mounting holes  913  that extend therethrough from the front surface  911  to the rear surface  912 . Each of the mounting holes  913  is configured to receive one of the fasteners  950  for securing the support member  910  to the support surface  999 . While the fasteners  950  are screws in the exemplified embodiment, they could take on other forms including nails or other types of fasteners in other embodiments. In some embodiments, the fasteners  950  and the mounting holes  913  may be omitted and the support member  910  may be coupled to the support surface  999  using adhesives such as glue, double-sided tape, or the like, or using other mounting techniques including hook and loop fasteners, or the like. Moreover, wall anchors may also be used to more securely couple the support member  910  to the support surface  999 . 
     The support member  910  comprises a bottom surface  914 , a top surface  915 , and first and second side surfaces  916 ,  917 . The support member  910  is elongated along an axis that extends from the first side surface  916  to the second side surface  917 . The support member  910  comprises an elongated groove  905  that extends from the top surface  915  downward to a floor  916  and from the rear surface  912  to a sidewall  907 . Thus, the floor  906  and the sidewall  907  collectively define the bounds of the elongated groove  905 . Due to the elongated groove  905 , a top portion  918  of the support member  910  has a thickness which is less than a thickness of the remainder of the support member  910 . That is, the top portion  918  of the support member  910  located between the floor  906  of the elongated groove  905  and the top surface  915  of the support member  910  has a reduced thickness when compared to the thickness of the remainder of the support member  910 . 
     In the exemplified embodiment, the elongated groove  905  is open at both of the top surface  915  and the rear surface  913  of the support member  910 . That is, the elongated groove  905  extends to both the top surface  915  and to the rear surface  913  of the support member  910 . However, in alternative embodiments the elongated groove  905  may be positioned inward of the rear surface  913  so that the elongated groove  905  does not extend all the wall to the rear surface  913 . In such an embodiment, the elongated groove  905  would be bounded by two sidewalls and a floor. In such an embodiment, the mounting element  924  of the storage receptacle  920  would still be received within the elongated groove  905  for slidably mounting the storage receptacle  920  to the support member  910  in much the same manner as described herein. 
     When the support member  910  is mounted to the support surface  999 , the rear surface  912  of the support member  910  abuts against the support surface  999 . However, due to the existence of the elongated groove  905 , the sidewall  907  that bounds the elongated groove  905  is spaced from the support surface  999  by a gap G 5 . Moreover, because the elongated groove  905  extends to the top surface  915  of the support member  910 , the mounting elements  924  of the storage receptacles  920  are able to pass into and nest within the elongated groove  905 . 
     In particular, and as best shown in  FIGS. 55 and 56 , the mounting elements  924  comprise a first wall  925  extending horizontally from the rear surface of the storage receptacle  920  and a second wall  926  extending downwardly from the terminal end of the first wall  925 , thereby forming an L-shaped hook. The first wall  925  may not extend directly from the rear surface of the storage receptacle  920 , but may instead extend from another vertical wall which extends from the storage receptacle  920  (see  FIGS. 53 and 55 , for example). The second wall  926  can be inserted into the elongated groove  905  of the support member  910  so that it nests between the floor  907  of the elongated groove  905  and the support surface  999 . The first wall  925  then rests atop of the top surface  915  of the support member  910 , and the top portion  918  of the support member  910  nests within the space between the second wall  926  of the mounting element  924  and the rear surface of the storage receptacle  920 . The storage receptacle  920  is then able to slide side-to-side along the support member  910  while remaining mounted/coupled to the support member  910 . That is, the storage receptacle  920  can slide along the length of the support member  910  while the second wall  926  of the mounting element  924  remains nested within the elongated groove  905  of the support member  910 . The terminal end of the second wall  926  of the mounting element  924  may abut against the floor  906  of the elongated groove  905 , or there may be a small space or gap between the terminal end of the second wall  926  and the floor  906  of the elongated groove  905 . 
     As shown in  FIGS. 55 and 56 , the depth of the elongated groove  905  measured from the sidewall  907  to the rear surface  912  is greater than the thickness of the second wall  926  of the mounting element  924  of the storage receptacle  920 . As a result, there remains a space between the second wall  926  of the mounting element  924  and the support surface  999  when the mounting element  924  is engaged with the support member  910 . This ensures that the second wall  926  does not scrape against the support surface  999 , which both prevents scuffing of or damage to the support surface  999  and also prevents friction between the mounting element  924  and the support surface  999  from impeding the slidability of the storage receptacle  920  along the support member  910 . Thus, by maintaining a space between the mounting element  924  and the support surface  999 , the storage receptacle  920  can freely slide along the support member  910  between the first and second side surfaces  916 ,  917  thereof. 
     As noted above, when the storage receptacles are mounted on the support member  910 , the leveling protrusions  929  may be in contact with the support surface  999 . In particular, the leveling protrusions  929  are located along a portion of the storage receptacle  920  that is below the bottom end  914  of the support member  910 . Thus, the leveling protrusions  929  do not contact the support member  910  in the exemplified embodiment, but instead come into direct contact with the support surface or wall  999 . The leveling protrusions  929  may facilitate maintaining the storage receptacle  920  in a desired orientation that is optimal for its use and purpose. In the exemplified embodiment, the leveling protrusion  929  has a greater length as measured from the rear surface of the storage receptacle  920  to a distal end of the leveling protrusion  929  than the mounting element  924  as measured from the rear surface of the storage receptacle  920  to a distal end of the leveling protrusion  929 . This allows the leveling protrusion  929  to contact the support surface  999  despite the mounting element  924  not contacting the support surface  999 . 
     It should be noted that in some embodiments, the storage receptacles described herein may be configured for interchangeable use either within one of the cabinets or with a support member that is mounted on a support surface such as a wall. Thus, a user may have a storage system such as the storage system  799  mounted within a cabinet and the storage system  900  mounted on a wall. The user will be able to use any of the storage receptacles described herein or any other storage receptacles later developed with either one of the storage systems  799 ,  900 . Thus, the storage receptacle  920  may originally be located within a cabinet, and a user may later decide it better suits their needs when used with the storage system  900 . Thus, the user can remove the storage receptacle  920  from the cabinet and instead mount it on the support member  910  which is mounted to a wall. This is true of any of the storage receptacles described herein and the hook  923  and any other apparatus or component which may be mounted to any of the support members or rods described herein. 
     Referring to  FIGS. 53 and 57-59 , the first and second end caps  930 ,  940  and their engagement with the support member  910  will be described. The details will be described here with reference to the first end cap  930 , but it should be understood that the second end cap  940  is identical to the first end cap  930  and thus this description is also applicable to the second end cap  940 . As seen in  FIG. 52 , the first and second end caps  930 ,  940  provide the storage system  900  with a seamless and clean appearance by hiding the elongated groove  905  from view other than when viewed from above. 
     The first end cap  930  comprises a body portion  931  having an outer surface  932  and an inner surface  933  and a nesting protrusion  934  protruding from the inner surface  933 . The body portion  931  has a bottom edge  934 , a top edge  936 , a first side edge  937 , and a second side edge  938 . The nesting protrusion  934  is positioned adjacent to the top edge  936  and adjacent to the first side edge  937 . The nesting protrusion  934  has a shape which matches the shape of the elongated groove  905  in the support member  910 . 
     As shown in  FIGS. 52, 54, and 59 , the first end cap  930  is positioned so that the inner surface  933  abuts against the first side surface  916  of the support member  910 . When so positioned, the nesting protrusion  934  nests within a portion of the elongated groove  905  that is adjacent to the first side surface  916  of the support member  910 . In the exemplified embodiment, there are no fasteners, adhesives, or the like used to attach the first end cap  930  to the support member  910 . Rather, the first end cap  930  is held in place due to the sandwiching of the nesting protrusion  934  between the support member  910  and the support surface  999 . Of course, in other embodiments fasteners or adhesive could be used to more securely couple the first end cap  930  to the support member  910 . 
     It should be appreciated that although there are several different embodiments shown and described herein, features of the various components may be combined. For example, the hanging system described with reference to  FIGS. 1-22  may be applied to any article or cabinet described herein. Furthermore, the dual-walled structure described with reference to  FIGS. 27-32  may be applied to any article or cabinet described herein. Moreover, the shelf supports and shelves described with reference to  FIGS. 33A-36  may be used with any of the cabinets described herein. And finally, the sliding storage receptacle system described with reference to  FIGS. 37-51B  may be used with any of the cabinets described herein. 
     While the invention has been described with respect to specific examples including presently preferred modes of carrying out the invention, those skilled in the art will appreciate that there are numerous variations and permutations of the above described systems and techniques. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Thus, the spirit and scope of the invention should be construed broadly as set forth in the appended claims.