Method and apparatus for hanging an object

A method for hanging an object and apparatus for accomplishing the same. The invention describes an apparatus comprising a track, an upper flange attached to a track, and a carrier disposed in said track. The carrier is laterally moveable along the length of the track. In one embodiment the apparatus comprises a top unit and a base unit. The top unit comprises pins, a track, at least one carrier, and a lower flange. The base unit is affixed to a ceiling, and the top unit is affixed to the base unit via the pins. In one embodiment the anchors are not visible from below. Further, in one embodiment, the lower flange acts as a moisture barrier to protect the anchors.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention relates to a method and apparatus for hanging or supporting an object.

2. Description of Related Art

There are a variety of known devices used for hanging or supporting an object. Often the object must be able to be moved, such as curtains or drapes. As an example, curtains are often hung on curtain rods so that the curtains can be pulled or slid open or closed. As another example, shower curtains are often hung on rods which are not structurally attached to the shower walls. Rather, the rods typically have an internal spring which offers an external force to keep the rod positioned in the shower. However, often this force is insufficient to support the weight of the curtain and the rod tumbles down into the shower. This presents a dangerous and undesirable situation. Another downside for typical shower curtains is that they cannot be positioned flush against the top of the ceiling. Such a flush and seamless appearance is often aesthetically pleasing.

Consequently, it is desirable to provide an apparatus which can adequately support the hanging object. Furthermore, it is desirable that the apparatus exhibit a flush and seamless appearance. Finally, it is desirable that the apparatus be suitable in a high moisture environment.

DETAILED DESCRIPTION

Several embodiments of Applicant's invention will now be described with reference to the drawings. Unless otherwise noted, like elements will be identified by identical numbers throughout all figures.

Generally, this invention relates to a method and apparatus for hanging or supporting an object. In one embodiment, the apparatus comprises two elements: a hanging object, and an assembly attached to a wall or ceiling from which the object is hung or supported. Virtually any object can be attached to the assembly including but not limited to curtains, drapes, a shower curtain, a privacy curtain, a bug net, etc. Such objects can be used to keep light out, to keep bugs away, to partition a room, create a room with a separate environment, etc. The assembly will be discussed in detail below in reference to the figures.

FIG. 1is a cross-sectional view of the installed assembly in one embodiment. In this embodiment, the assembly110is in the substantially same horizontal plane as the ceiling101. As will be discussed in detail below, a reference to a ceiling should not be deemed limiting as other walls, such as vertical sidewalls or floors, are also suitable. InFIG. 1, the assembly110is seamless and flush with the ceiling101. In the embodiment depicted, the assembly110comprises the track102, at least one carrier104which is laterally moveable along the length of said track, an upper flange107comprising at least one anchor hole, a lower flange108, and anchors103. As depicted the lower flange108comprises at least one anchor holes, although in other embodiments the lower flange108does not comprise an anchor hole. The upper107and lower flanges108are coupled to the track102. As used herein a “track” refers to a device which houses a carrier and which allows the carrier to move laterally along the length of the track. The track102can be formed to virtually any shape along its length. In one embodiment the track102is straight along its length whereas in other embodiments the track102has a curve. In other embodiments the track102is so shaped to be a continuous circle, square, or other geometric shape as viewed below. The track102can comprise a single continuous section or multiple sections inter-connected.

The assembly110further comprises a carrier104. Carrier, as used herein, refers to an object which is at least partially placed within the track and which is laterally moveable within the track. The carrier104can be maintained in the track102by a variety of methods including having one dimension of said carrier104being larger than the open diameter of the track. As depicted, the carrier104comprises an upper portion and a lower portion. The upper portion has a diameter106which is greater than the open dimension of the track. Such an arrangement maintains the carrier's position within the track. Other methods known in the art of maintaining the carrier104within the track can also be utilized.

The carrier104can comprise any item which is capable of moving laterally along the length of the track102. For example, the carrier104can comprise wheels, ball bearings, a shaped object, or other such devices which allow an object to travel the length of another object. In one embodiment the carrier104comprises a composition or coating which allows the carrier104to smoothly glide along the track102by, for example, reducing friction.

As discussed, in one embodiment the carrier104is dimensioned so that at least a portion of the carrier104is maintained within the track102. In one embodiment, the carrier104can be introduced into an open end of the track102before installation. Additionally, the carrier104can comprise an internal spring such that the carrier104assumes one diameter for installation, and once installed assumes a different diameter. In another embodiment, the track comprises a spring-loaded endcap at the end of the tracks through which the carriers can be inserted or removed by manipulating the endcap. In yet another embodiment, the track102comprises an entry point through which the carrier104can be inserted or removed. The entry point can be positioned anywhere along the track102. In one embodiment the entry point comprises a portion of the track with a wider diameter so that the carrier104can be inserted or removed. In such an embodiment the carrier104can be maintained within the track102by inserting a diameter restrictor, such as a screw, which prevents the carrier104from undesirably exiting the track102through the entry point. In another embodiment, the entry point comprises a portion of the track which can be opened or closed to allow the carrier104to be inserted or removed. After installation of the carrier104, the entry point can be secured via screws or the like to maintain the entry point in a closed position. In one embodiment, the entry point is located at a point on the track102which will be subject to a lower load. For example, if the track102is used to hold a shower curtain, then the portion of the track102adjacent to the toilet will often be subject to a lower load and less strain because the person does not exit the shower at that location. Finally, in some embodiments the carriers104are pre-installed within the track102. Those skilled in the art will appreciate the various methods of installing and securing a carrier104within a track102.

As depicted the assembly110is secured via anchors103to a stud100. As used herein “stud” refers to any structure to which the assembly110can be affixed and which offers sufficient support to the assembly110. The term stud includes but is not limited to traditional studs such as 2″ by 4″ wooden boards, metallic studs, plywood, or sheetrock. Whether a stud will offer sufficient support is dependent upon a number of factors including what is being attached to the carrier104. Those skilled in the art will understand what can qualify as a stud for a given embodiment. Also depicted inFIG. 1is the ceiling101, also referred to herein as ceiling material101. In one embodiment the stud100and ceiling101comprise different materials. For example, the stud100comprises a wooden board whereas the ceiling101comprises sheetrock. In other embodiments, however, both the stud100and the ceiling101comprise the same material.

As depicted, the assembly110is secured via anchors103secured to the upper flange107. In one embodiment, the upper flange107is flush against the stud100. In one embodiment the upper flange107and the track102are made from a single piece of material, and in other embodiments the upper flange107is attached to the track102by soldering, welding, or other such ways known in the art. In one embodiment the upper flange107is directly attached to the track102whereas in other embodiments the upper flange107is indirectly coupled to the track102via other structure. The term “coupled” refers to a connection, either direct or indirect. Thus an object which is either directly attached or attached through another structure is considered coupled. In one embodiment the upper flange107extends for the entire length of the track102, whereas in other embodiments the upper flange107is non-continuous along the length of the track102. For example, in one embodiment the upper flange107may only be located at the ends of the track102. Further, while the upper flange107is depicted as having both a left and right side, in other embodiments the upper flange107may only comprise a single side. This embodiment can be utilized, for example, when the assembly is to be installed flush against a vertical wall such that an upper flange107on both sides of the assembly110is impossible.

The upper flange107comprises at least one anchor hole. The assembly110is secured via at least one anchor103which are affixed to the upper flange107through the anchor holes. Anchors, as used herein, refers to a securing device and includes, but is not limited to, screws, nails, bolts, rivets, wall anchors, toggle bolts, and other devices known and used in the art. In one embodiment, the at least one anchor hole in the upper flange107is beveled such that the head of the anchor is flush with the upper flange107. In one embodiment, there is a corresponding hole in the lower flange108so that the anchor can be screwed, drilled, or otherwise affixed by placing the affixing instrument through the hole in the lower flange108. As an example, if the anchors comprise screws, the assembly can be attached by placing the screw through the holes in the upper and lower flanges and screwing the anchor103into the stud via a screwdriver. In one embodiment the upper flange107comprises a smaller anchor hole than the corresponding anchor hole in the lower flange108. In such an embodiment a thinner anchor can be used in the upper flange107whereas a thicker anchor can be used in the lower flange108. Further, in another embodiment a screw with a wider head is used for the lower flange107while a screw with a thinner head is used for the upper flange108so that it may fit through the anchor hole in the lower flange107. In one embodiment a wood screw is used in the upper flange107whereas a sheetrock screw is used in the lower flange108. Further, as depicted on the right side of lower flange108, the anchor may extend beyond the upper flange107. As depicted on the left side of the lower flange108, the anchor103may extend only into the ceiling material101. In still other embodiments, the anchor103extends from the lower flange108and secures into the upper flange107. In one embodiment, the anchors are not visible from below the installed assembly.

In one embodiment the assembly110is affixed to the wall via a variety of anchors103. For example, one embodiment comprises traditional wall anchors as well as screws. Thus, in one embodiment the upper flange107comprises multiple anchors holes for a variety of anchors. Further, in another embodiment, the lower flange108comprises at least one, and in one embodiment multiple anchor holes. Like the upper flange107, in the embodiment depicted the lower flange108comprises at least one anchor hole. In one embodiment the lower flange108comprises multiple anchor holes for a variety of anchors. In some embodiments, an anchor is attached to the lower flange108which offers the assembly110additional support. Further, in one embodiment the anchor attached through the lower flange108locks the ceiling material101in place. In such embodiments the ceiling material is secured by the anchor through the lower flange. In yet another embodiment, the lower flange108comprises small teeth on the side which face the ceiling material101which help to grip and secure the ceiling material. Other devices for securing the ceiling material101, such as screws, pins, or nails can also be employed. As noted above, in other embodiments the lower flange108does not comprise an anchor hole.

Like the upper flange107, the lower flange108can be integral with the track102or can be attached to the track102by soldering, welding, or other ways known in the art. Further, the lower flange108can be directly attached to the track102or indirectly coupled to the track102through intermediate structure. As depicted, the lower flange108is flush against the ceiling101. As such, the assembly110appears seamless against the ceiling101which is often aesthetically desirable. In one embodiment, the bottom of the track102is in substantially the same plane as the ceiling material101. As depicted inFIG. 1, the lower flange108has tapered ends. Often the ceiling material101comprises sheetrock which often also has tapered ends. As depicted, the ceiling material101has been taped with tape135. The tape can comprise fiberglass tape, joint tape, and other such material known in the art. The joint is then covered, known as floating, with a joint compound, plaster or other materials known in the art and textured for consistency with the rest of the ceiling. Such consistency offers a pleasing visual appeal. Consequently, the lower flange is in substantially the same plane as the ceiling material101and tape135.

In one embodiment, the lower flange108extends for the entire length of the track102. In another embodiment, the lower flange108is not continuous along the length of the track102. As with the upper flange107, in some embodiments there is only a left or right portion of the lower flange108. Likewise, in one embodiment there is no lower flange108.

As depicted, there is a distance109between the upper and lower flanges. This distance can vary with specific embodiments. In one embodiment the distance ranges from a quarter inch to a full inch. Other common distances include ½″ or ⅝″ for sheetrock, and ⅜″ and ½″ for backer board. In one embodiment, ceiling material101is placed between the upper and lower flanges. The ceiling material101can comprise any material used for ceilings including sheetrock, wood, tile, etc. As noted above, the ceiling material101can comprise the same or different material than the stud100.

In one embodiment, the distance109between the upper and lower flanges is different on each side of the track102. For example, the left side of the track102may comprise sheetrock. Thus, the distance109between the upper and lower flanges on the left side is sized to accommodate the sheetrock. However, the right side of the track can comprise a thinner layer, for example a cement board layer. As such, the distance109between the upper and lower flanges on the right side is sized to accommodate the cement board. In other embodiments the right or left side is sized to accommodate thicker material. For example, the left side may comprise ¾ inch sheetrock whereas the left side comprises one inch sheetrock. In still another embodiment one side may comprise sheetrock whereas the other side comprises thicker or thinner backer board. In still another embodiment one side may comprise sheetrock whereas the other side comprises thicker or thinner cement board and tiles. Accordingly, the distances between the upper and lower flanges on the left and right side of the track may be different, and a different material may be inserted in each side.

In another embodiment, the lower flange108and/or the upper flange107is adjustable relative to the track102. Accordingly, the distance109between the upper and lower flange107can be adjusted to accommodate ceiling material101of varying thicknesses. The upper or lower flanges can be adjusted in a variety of ways including inserting spacers between the track102and the upper107or lower108flange or both. Those skilled in the art will understand the various ways to make the upper and lower flanges vertically adjustable. Further, in still another embodiment, the assembly110comprises an additional flange. The additional flange can be used to support additional layers. As with the lower flange108, the additional flange may only be on the left side, the right side, or may be on both sides. In one embodiment the additional flange is located below the lower flange108. For example, the lower flange108may secure a layer of cement board while the additional flange supports a tile layer. In still another embodiment, the lower flanges108are not in the same plane but, for example, the additional flange located on the right of the figure and below the right lower flange108is in the same plane as the left lower flange108. In other embodiments the additional flanges are in the same plane.

The assembly110can be installed in a variety of manners. In one embodiment, the assembly110is installed by removing a portion of the ceiling101, affixing the assembly110to the stud100by inserting at least one anchor through the anchor holes in the upper flange107, and placing ceiling material101into the gap109between the upper107and lower108flange. Thus, in one embodiment, the distance109between the upper and lower flanges is slightly greater than the thickness of the ceiling material101. In other embodiments, at least two anchors are used to affix the assembly to a wall. As discussed, one anchor103may comprise a wall anchor whereas another anchor, which may comprise a different length, is comprised of a screw. After affixing the assembly110, the carrier104is inserted and an object119can be hung or supported from the carrier104. In other embodiments, the carrier104is pre-installed within the track102so there is no need to install the carrier104. In one embodiment, after placing ceiling material the ceiling material is taped and floated. In one such embodiment, the ceiling material101and the lower flange108are taped and floated such that the ceiling material101and the lower flange108are in the same plane. In a further embodiment, after being taped and floated the ceiling material101, and even portions or all of the lower flange108, is then textured and/or painted. In other embodiments, there is no need to remove the ceiling material101prior to installation. For example, the assembly110can be installed during construction of the house or during framing. In another embodiment, the assembly110is installed during remodeling wherein the ceiling material101is already removed.

Because the lower flange108is substantially flush against the ceiling material101, it is substantially seamless with the ceiling material101. Thus, in one embodiment the lower flange108is in substantially the same horizontal plane as the ceiling material101.

Placing tracks in a high moisture environment, such as above or within a shower, can cause moisture problems with the components of the track. For example, the ceiling material101can experience moisture damage which results in cracks, swelling, or mold growth. Likewise, moisture can damage the stud100such that the anchor103fails to properly secure the track. Further, moisture can cause any metallic components to rust. The lower flange108helps to prevent such moisture damage by preventing moisture from reaching and damaging the anchor103, the stud100, and the covered ceiling material101. As such, the lower flange108acts as an inverted umbrella protecting the covered contents from moisture damage. Accordingly, in one embodiment the lower flange108is a moisture barrier which protects contents above the lower flange108against direct moisture contact. In one embodiment the assembly comprises a gasket to prevent moisture damage. The damage can be located above or below the lower flange108or the upper flange107. A gasket is useful in preventing the passage of water and can be utilized in virtually any embodiment discussed herein. In one embodiment, the lower flange108, the carrier104, and/or the track102comprises a material which is rust resistant.

As depicted inFIG. 1, there is no anchor103located within the channel of the track102. The term “channel” refers to the open portion of the track. This is beneficial for a variety of reasons. First, if there is an anchor located within the channel of the track, then the anchor103can project into the path of the carrier104and prevent or inhibit movement of the carrier104along the length of the track102. By locating the anchors103outside of the channel of the track102, this is avoided. Second, if an anchor103is located within the channel of the track102, then the anchor103can be subjected to direct moisture damage. By protecting the anchors103via the lower flange108, the integrity of the anchor103, and thus, the stability of the assembly is maintained and/or prolonged. Thus, in one embodiment the anchors103are protected from direct moisture contact. Further, in one embodiment the channel does not comprise ceiling material which also protects the ceiling material from direct moisture damage. Finally, because the channel does not comprise an anchor103, any anchor103is hidden by the ceiling material101and the lower flange108. As such, the anchors103are not visible from below the assembly110. This is beneficial as such an arrangement increases the aesthetics of the installed assembly.

While in the embodiment depicted inFIG. 1the track is between the upper flange107and the lower flange108, in other embodiments the track102is above the upper flange107.FIG. 2is a cross-sectional view of the installed assembly in one embodiment. As depicted the track102is located above the upper flange107. Such an embodiment offers the ability for the track102to be recessed into the ceiling. This would allow a portion of the hanging object to extend above the ceiling.

FIG. 2shows one embodiment wherein the track102is vertically adjustable. Such an embodiment allows the height of the track102to be varied. For example, the track102can be lowered to install curtains and then subsequently raised to their desired height.

The track102comprises a housing comprised of at least one intermediate flange128. As depicted, the housing comprises a horizontal top intermediate flange128alocated above the track102and two opposing vertical intermediate flanges128b,128c. The top horizontal flange128aattaches to the two opposing left128cand right vertical intermediate flanges128b. The housing couples the track102with the upper107and lower108flanges. WhileFIG. 2depicts the track102as being adjustable relative to the upper flange107, in other embodiments the track102is not adjustable.

Coupled to the lower flange108is an adjusting device129. As depicted the adjusting device129comprises a screw secured to the lower flange108. The adjusting device can comprise any device which upon manipulation can cause an attached mounting device130to raise or lower. Suitable devices include a screw, hydraulic fluid, and other devices known in the art. As discussed, a mounting device130is also coupled to the adjusting device129. The mounting device130is also coupled to the track102. As the adjusting device129is adjusted, such as by rotating the screw, the mounting device130and the track102both move relative to the adjusting device129. As such the track102can be raised or lowered by manipulating the adjusting device129. In one embodiment the adjusting device129is recessed within the lower flange108so that it is not easily seen from below. In one embodiment the adjusting device129comprises a recessed screw head. Those skilled in the art will understand there are other methods for adjusting the height of a track.

As depicted, the housing further comprises suspension flanges132which are coupled to the top intermediate flange128aand the upper107and lower flanges108. The optional suspension flanges132offer additional support and offer an additional way to couple the track102to the intermediate flanges128and the upper107and or lower108flanges. The suspension flanges132can comprise stationary rods upon which the track102glides. For example, on one embodiment the track102comprises holes through which the suspension flanges132are placed. The suspension flanges132help keep the track102aligned and yet allow the track102to be vertically moveable. It should be noted that not all embodiments comprise a suspension flange132. Further, it should be noted that in some embodiments the intermediate flange128acts as a suspension flange132. For example, inFIG. 2, if the adjusting device129were removed the track would be connected to the left intermediate flange128c. The track102would then be vertically adjustable along the left intermediate flange128c. As such, the left intermediate flange128cwould function as a suspension flange132.

In other embodiments the track102is further coupled to another adjusting device, referred to as an initial placement device. The initial placement device can comprise any type of adjusting device previously discussed, and can operate as the adjusting devices previously discussed. In one embodiment, the initial placement device comprises a threaded screw which raises or lowers the track102. In one embodiment the initial placement device is secured to the top of the intermediate flange128aand is coupled to the track102. Accordingly, if the initial placement device is manipulated so that the track102is lowered, then the adjusting device129, which is also coupled to the track102, also reacts. In one embodiment wherein the initial placement device and the adjusting device129comprise threaded screws, the initial placement device comprises larger threads than the adjusting device129. Accordingly, a full rotation of the initial placement device results in a larger adjustment than the adjusting device129. In such embodiments the initial placement device is used to obtain the initial location while the adjusting device129allows to fine-tune the final location of the track102. Further, the adjusting device129can be manipulated after installation whereas the initial placement device cannot generally be manipulated after installation because it is located atop the intermediate flange128a. It should be noted that not all embodiments comprise the initial placement device. Some embodiments only comprise an adjusting device129. Still other embodiments comprise an initial placement device but do not comprise an adjusting device129.

As depicted, the left and right upper flanges107are in the same horizontal plane. In other embodiments, however, the left and right upper107and/or lower flanges108are not located in the same horizontal plane.

FIG. 2illustrates a lower left flange108which extends beyond the upper flange107. The extended portion of the lower flange108comprises an anchor hole and an anchor103. The anchor103secures the ceiling material101in its position between the upper107and lower108flange. The left upper flange103comprises an anchor103which secures into the stud100.

FIG. 2also illustrates a supplemental flange127which offers yet another opportunity to secure the assembly to a wall101or stud100. As depicted the supplemental flange127extends from the intermediate flange128cand comprises an anchor hole. A supplemental flange is any flange which extends from an intermediate flange. The supplemental flange127can extend in virtually any direction to offer additional support.

To install the assembly depicted inFIG. 2, the initial placement device131is manipulated until the track102is in the first desired location. Then, the assembly is secured to a wall or stud100. As previously discussed, sheetrock or other ceiling material may have to be removed prior to installation. Alternatively, the assembly can be installed during the construction or renovation stage. After the assembly is secured, the ceiling material is replaced and secured. As depicted the ceiling material101is placed between the upper107and lower108flanges and secured with anchors103. After the assembly is installed, the location of the track102can be adjusted via the adjusting device129. The result is an adjustable track which can be recessed within the ceiling. The assembly depicted inFIG. 2is easily installed. Further, due to the housing and the upper and lower flanges, the assembly is structurally sound. As will be discussed in more detail below,FIG. 2serves as one example of an embodiment which can be modified to comprise a particle migration barrier.

FIG. 3is a cross-sectional view of yet another embodiment of the instant invention.FIG. 3illustrates an embodiment wherein the assembly110is affixed to the external surface of a stud100or ceiling101. In such an embodiment, the ceiling material101need not be cut or otherwise altered prior to installation. Further, the assembly can be installed even in the absence of a traditional support stud.

As depicted inFIG. 3, the assembly110comprises a base unit112and a top unit116. The top unit116comprises a track102, at least one carrier104which is disposed in said track and which is laterally moveable along the length of the track102, and a lower flange108attached to said track. The track102and carrier104can operate as discussed above.

In this embodiment a base unit112, illustrated inFIG. 4, is secured to a ceiling as discussed below. In the embodiment depicted, the base unit112comprises teeth117which mate with a tooth gap in the top unit116. The teeth117and the top unit116both comprise a pin hole through which the pin124may be inserted. Accordingly, when the top unit116is mated with the base unit112, the pin holes in each piece align and the pin124can be inserted. When the pin124is inserted the top unit116becomes secured to the base unit112. In one embodiment both the pin124and the top unit116comprise threads so that the pin124can be screwed into a threaded portion of the top unit116. Either the base unit112or the top unit116or both can be threaded. To remove the top unit116, the pin124is simply withdrawn or unscrewed. Such an embodiment allows for easy installation and allows for easier carrier104change or replacement. For example, rather than having to change the carrier104with the track102installed, the top unit116can be removed and the carrier104can be changed or replaced at a comfortable height or location.

The pins124can be installed horizontally, as depicted, vertically, or angled. Thus, the pin holes can either align horizontally, vertically, or angled. In the embodiment depicted, only a single pin, installed through the horizontally aligned pin holes is needed to secure a segment of the base unit112to the top unit116. The assembly may require additional pins depending on the weight of the object being hung. For example, in one embodiment a single pin may secure a five foot section of a top unit116to a base unit112. Thus, a top unit116which is ten feet in length will require two horizontal pins in series. If a heavier object is being hung, then a single pin may only secure a one foot section of the top unit116. Likewise, a vertical pin, such as a screw, positioned through the pin holes of the top116and base units116may be used to secure the top unit116to the base unit112. In such an embodiment, the pin holes may comprise threads.

FIG. 4is a perspective view of the base unit for an embodiment utilizing a pin as discussed above. In the embodiment depicted, the base unit112is first affixed to the ceiling101via anchors103. As depicted the base unit112the anchor103further comprises a toggle bolt126. Such devices are helpful when securing an object to sheetrock. In one embodiment, the base unit112will have the same shape as the track102. Therefore, if the track102is straight the base unit112will also be straight. In one embodiment the base unit112is wider than the top unit116. In one embodiment the base unit112is the same width as the top unit116, whereas in other embodiments the top unit116is wider than the base unit112.

As depicted inFIG. 4, the base unit112comprises at least one anchor hole113. The anchor hole113is the hole through which the anchor103will affix the base unit112to the ceiling101. In one embodiment the assembly comprises at least two anchors103comprising dissimilar lengths. For example, one anchor103may be a 3-inch long wall anchor whereas the additional anchors are shorter screws. As depicted the base unit112comprises a plurality of anchor holes113as well as a plurality of supplemental support holes114through which the base unit112may be further secured to the wall or ceiling.

As shown the base unit112comprises solid teeth117, however in other embodiments the teeth117are hollow. The teeth117can comprise any shape such as rectangular, triangular, and circular. Those skilled in the art will understand that the teeth117can be made separately and attached to the base unit112or the teeth117and the base unit112can be made integrally through, for example, die-casting. Further, while the embodiment illustrated shows the teeth being located on the base unit112, in other embodiments the top unit116comprises the tooth whereas the base unit112comprises the tooth gap.

FIG. 5is a cross-sectional view of the installed assembly in another embodiment comprising a base unit. As depicted inFIG. 5, the assembly110comprises a base unit112and a top unit116. The top unit116comprises a track102, at least one carrier104which is disposed in said track and which is laterally moveable along the length of the track102, a lower flange108attached to said track, and at least one pin111. The track102and carrier104can operate as discussed above. The top unit116is affixed to the base unit112via the at least one pin111.

FIG. 6is a perspective view of the base unit in one embodiment. In the embodiment depicted, the base unit112is first affixed to the ceiling101via anchors103. The base unit112of this embodiment can operate as discussed above. As depicted inFIG. 6, the base unit112comprises at least one anchor hole113and at least one pin hole114. While depicted as being a simple hole, the pin hole114may comprise a raised solid or hollow structure to which the pin attaches. The anchor hole113is the hole through which the anchor103will affix the base unit112to the ceiling101. In one embodiment the assembly comprises at least two anchors103comprising dissimilar lengths. For example, one anchor103may be a 3-inch long toggle anchor whereas the additional anchors are shorter screws, such as self drilling dry-wall anchors or other such industrial anchors. As depicted the base unit112comprises a plurality of anchor holes113as well as a plurality of pin holes114. In other embodiments the base unit comprises a plurality of supplemental holes (not shown) through which the base unit112may be further secured to the wall or ceiling.

Referring back toFIG. 5, the figure depicts the lower flange108attached to the track102at an angle123. In one embodiment the angle123varies from about 89 degrees to about 5 degrees. In another embodiment, the angle varies from about 25 degrees to about 65 degrees, and in another embodiment the angle varies from about 35 degrees to about 50 degrees.

As depicted inFIG. 5, pins111are attached to the lower flange108and the top of the track102. In other embodiments the pins111are located only on either the track102or the lower flange108or a combination thereof. In one embodiment the pin111is integral with the lower flange108. In other embodiments the pin111secures to the lower flange108. The pins111attach the top unit116to the base unit112via the pin holes114.

The pins111can comprise a variety of devices including pinch pins, spring pins, tack pins, screws, etc. The pins111can also be similar to the pin124depicted inFIG. 3. In operation, the pins111are inserted through the pin holes114and remain in place. This can be accomplished in a variety of ways including a spring loaded pin whereby the spring collapses to pass through the hole and expands once passed. Additionally, the pins can comprise a screw or other device whereby a portion of the pins111expands once it has passed through the pin holes114. Further the pins111may be simply forced through the pin holes114. In one embodiment the pins111can be removed in the same manner in which they were installed. In yet another embodiment the pins111comprise screws such as Allen screws which can be manipulated to attach through the pin holes114. Additionally, the pin holes114may comprise a nut or the like through which the pins111affix. In still another embodiment, the pins111are attached to the anchors103. In one such embodiment the anchors have an internal set of threads into which the pins111are affixed. In another embodiment, the anchors103comprise a nut or other such item through which the pins111can be attached. Such an embodiment allows for easier installation as the number of holes through the ceiling are reduced. Those skilled in the art will understand the different pins111which can be utilized.

After the base unit112is installed on the ceiling material101, the top unit116is attached to the base unit112via the pins111. In one embodiment the base unit112is sufficiently separated from the ceiling material101to allow space for the installation of the pins111. This can be accomplished with any means known in the art, including providing a washer on the ceiling side of the base unit112which provides a small gap between the ceiling material101and the base unit112. In other embodiments, a small hole may be drilled into the ceiling material101to provide sufficient space for the installed pins111. Further, in other embodiments the base unit112may comprise a housing which can accept and house the pins111.

The installed assembly110, while not completely flush in all embodiments, appears flush and seamless with the ceiling. As those skilled in the art will understand, the width of the lower flange108can be increased, and the angle between the track102and the lower flange increased, to make the assembly110appear more seamless with the ceiling. Thus, in one embodiment the lower flange108extends beyond the base unit112. As an example, if the base unit112is three inches wide, the lower flange108can extend an inch on both sides of the base unit112and cover a width of five inches. In one embodiment the base unit varies from a width of 1 to 8 inches, while in another embodiment the base unit varies from a width of 2 to 4 inches. In still another embodiment, the base unit is about 3.5 inches. In one embodiment the distance between the ceiling and the bottom portion of the track102is less than two inches, while in other embodiments it is less than ½ of an inch.

As noted above, the lower flange108protects the anchors103and the ceiling material101from moisture damage. The lower flange108operates as a moisture barrier to prevent moisture from directly contacting the portion of the ceiling material101above the lower flange108. As previously noted, the length of the lower flange108can be increased to cover, and thus protect, a larger area of ceiling material101.

In the embodiment depicted inFIG. 5, there is no anchor located in the channel of the track102. As noted previously this results in numerous benefits including keeping the anchor103from direct moisture contact. Further, because the anchors are located on the ceiling side of the lower flange108the anchors are not visible from below the assembly110.

In one embodiment the base unit112further comprises a gasket. The gasket is located on the ceiling side of the base unit112. Consequently, when the pins111are inserted through the corresponding holes114, the gasket seals against the pins111and further restricts moisture from reaching the ceiling material101. Additionally, the gasket may be located around the perimeter of the base unit116further preventing moisture from seeping in where the top unit and base unit connect. In still other embodiments the top unit comprises a gasket.

To install the track assembly the base unit is first affixed to a wall by inserting at least one anchor through said at least one anchor hole. Next, the top unit is affixed to said base unit by inserting at least one pin into said at least one pin hole.

FIG. 7is a cross-sectional view of one installed assembly comprising a particle migration barrier. Often it is desirable to keep particles from one side of the curtain119separated from the other side of the curtain119. One such example includes a field operating or emergency room such as those used by Doctors during a natural disaster. Often these rooms are temporary structures which are quickly set up and disassembled. For example, in emergency situations where hospital rooms are unavailable, make-shift operating rooms are often set up near the emergency which offers a medical team a place to perform surgery or otherwise treat their patients. In such situations, it is often desirable to keep the room sanitized and free from particles on the outside of the room. Another example is a room for painting cars or other materials. In such a situation it is desirable to keep paint on one side of a curtain contained.FIG. 7shows an embodiment which may be utilized to provide a curtain which creates or separates a room. The embodiment shown prevents particles from migrating up the curtain119on one side and migrating down on the other side. The embodiment shown utilizes any similar structure as previously described but further comprises a pressure valve120. In one embodiment the pressure valve120comprises a continuous piece which covers the length of the track102. In other embodiments, the pressure valve120comprises several individual pieces which are interlocked or otherwise attached.

The pressure valve120can come in a variety of forms. As illustrated the pressure valve120comprises a pressure source121which forces the pressure valve120to contact the curtain119. The pressure source121can comprise a spring, coil, memory metals, or other such compression device. The pressure source121can also comprise compressed air or other fluids such as hydraulic fluid. Those skilled in the art will understand which pressure sources will be suitable.

The pressure valve120can be comprised of different materials including plastic, rubber, metal, wood, etc. Other specialty materials may be selected depending upon the embodiment employed and the particles present.

In operation, the pressure source108places pressure on the pressure valve120. The pressure valve120acts as a gasket to prevent particles from migrating upward beyond the pressure valve120. In one embodiment, the pressure source121offers sufficient pressure to prevent particles form migrating but not such great pressure that the curtain can not be moved. In one embodiment the pressure source121can be adjusted to increase or decrease the pressure supplied to the pressure valve120. For example, if the pressure source121comprises a spring, then the spring can be lengthened or shortened via an adjustable spring to adjust the spring strength. Those skilled in the art will understand various ways to adjust the pressure source121.

The curtain may further comprise a top gasket125which extends outward to further prevent the migration of particles. Further, while the pressure valve120is shown as being located within the lower flange108, in other embodiments the pressure valve120is located below the lower flange108.

The pressure valve120may be utilized in a variety of embodiments. For example, the pressure valve120may be utilized in the embodiments shown inFIG. 2andFIG. 4. As previously stated, the pressure valve120may be located in or below the lower flange.

While one embodiment of the assembly has been described as being attached to a ceiling, in other embodiments the track assembly is attached to a vertical wall or floor. For example, in one embodiment track assemblies are attached to opposing vertical walls. Blinds or curtains are then attached to the track assemblies, and the blinds can be raised or lowered. Further in still another embodiment, one track assembly is installed in the ceiling while another track assembly is installed on a floor. Thus, the curtain is affixed to both the ceiling and the floor. Such embodiments may be employed in conjunction with a pressure valve to create an entire wall which prevents particle migration. As such, an entire room can be constructed which prevents particle migration from either inside or outside of a room.