Finishing accessory with backing strip

Description

BACKGROUND

In typical building construction, framing assemblies, including studs, joists, trusses, etc., are combined with sheathing materials, such as wallboard panels, to form sheathing assemblies and are used to construct walls, ceilings and/or floors. The sheathing materials on their own may not provide the desired level of fire protection or sound insulation, particularly at the joints or ends of the sheathing assemblies, such as the joint formed between the top of a wall and the ceiling. As a result, additional materials, such as mineral wool, fire caulking, intumescent strips, intumescent putty, fire resistant foam, or other fire resistant or sound insulating materials may be installed at these joints in order to achieve the desired level of fire protection and/or sound insulation.

In addition, many walls are constructed to allow for vertical movement of the studs and the wallboard panels attached thereto relative to the ceiling, which may result from thermal expansion of the studs, seismic activity or shifting loads on higher floors or other similar factors. Typically, in those walls, the wallboard panels are installed such that there is a gap between the top of the wallboard panel and the horizontal support structure (e.g., ceiling). The gap allows the wallboard panel to travel vertically without contacting the ceiling when the studs and wallboard panel deflect. Those gaps are typically filled with a resilient and/or a compressible filler material, such as backer rod or caulk, so that the wallboard panel can still move vertically during a deflection. In some applications, the filled gap can then be covered by a finishing component, such as joint tape and joint compound.

In addition to applying a finishing component over the filler material in the gap, a finishing accessory, including but not limited to a piece of ceiling trim or an L bead, may also be installed at the top of the wallboard panel to help provide an aesthetically pleasing appearance to the joint. The finishing accessories may be manufactured from plastics, metals, paper products, composites and other materials.

Accordingly, providing a finishing accessory that comprises a backing strip that can fill the gap with a resilient and/or compressible material, may allow a single component to replace multiple components or materials, which may reduce installation time and total material cost.

While a variety of finishing accessories have been made and used, it is believed that no one prior to the inventor(s) has made or used an invention as described herein.

BRIEF DESCRIPTION OF THE DRAWINGS

It is believed the present invention will be better understood from the following description of certain examples taken in conjunction with the accompanying drawings, in which like reference numerals identify the same elements and in which:

FIG. 1 depicts a partial perspective view of a wall assembly that includes an exemplary finishing accessory;

FIG. 2 depicts a top perspective view of the finishing accessory of FIG. 1;

FIG. 3 depicts a top perspective view of an alternate exemplary finishing accessory;

FIG. 4 depicts a top perspective view of another alternate exemplary finishing accessory;

FIG. 5 depicts a top perspective view of another alternate exemplary finishing accessory;

FIG. 6 depicts a front view of an alternate exemplary wall assembly that includes another alternate exemplary finishing accessory;

FIG. 7 depicts a top perspective view of another alternate exemplary finishing accessory;

FIG. 8 depicts a front elevational view of the finishing accessory of FIG. 7;

FIG. 9 depicts a rear elevational view of the finishing accessory of FIG. 7;

FIG. 10 depicts a left side elevational view of the finishing accessory of FIG. 7;

FIG. 11 depicts a right side elevational view of the finishing accessory of FIG. 7;

FIG. 12 depicts a top plan view of the finishing accessory of FIG. 7;

FIG. 13 depicts a bottom plan view of the finishing accessory of FIG. 7;

FIG. 14 depicts a partial perspective view of an alternate exemplary wall assembly that includes the finishing accessory of FIG. 7;

FIG. 15 depicts a top perspective view of another alternate exemplary finishing accessory;

FIG. 16 depicts a front elevational view of the finishing accessory of FIG. 15;

FIG. 17 depicts a rear elevational view of the finishing accessory of FIG. 15;

FIG. 18 depicts a left side elevational view of the finishing accessory of FIG. 15;

FIG. 19 depicts a right side elevational view of the finishing accessory of FIG. 15;

FIG. 20 depicts a top plan view of the finishing accessory of FIG. 15;

FIG. 21 depicts a bottom plan view of the finishing accessory of FIG. 15;

FIG. 22 depicts a partial perspective view of an alternate exemplary wall assembly that includes the finishing accessory of FIG. 15;

FIG. 23 depicts a top perspective view of another alternate exemplary finishing accessory;

FIG. 24 depicts a front elevational view of the finishing accessory of FIG. 23;

FIG. 25 depicts a rear elevational view of the finishing accessory of FIG. 23;

FIG. 26 depicts a left side elevational view of the finishing accessory of FIG. 23;

FIG. 27 depicts a right side elevational view of the finishing accessory of FIG. 23;

FIG. 28 depicts a top plan view of the finishing accessory of FIG. 23;

FIG. 29 depicts a bottom plan view of the finishing accessory of FIG. 23;

FIG. 30 depicts a partial perspective view of an alternate exemplary wall assembly that includes the finishing accessory of FIG. 23;

FIG. 31 depicts a top perspective view of another alternate exemplary finishing accessory;

FIG. 32 depicts a front elevational view of the finishing accessory of FIG. 31;

FIG. 33 depicts a rear elevational view of the finishing accessory of FIG. 31;

FIG. 34 depicts a left side elevational view of the finishing accessory of FIG. 31;

FIG. 35 depicts a right side elevational view of the finishing accessory of FIG. 31;

FIG. 36 depicts a top plan view of the finishing accessory of FIG. 31;

FIG. 37 depicts a bottom plan view of the finishing accessory of FIG. 31; and

FIG. 38 depicts a partial perspective view of an alternate exemplary wall assembly that includes the finishing accessory of FIG. 31.

The drawings are not intended to be limiting in any way, and it is contemplated that various embodiments of the invention may be carried out in a variety of other ways, including those not necessarily depicted in the drawings. The accompanying drawings incorporated in and forming a part of the specification illustrate several aspects of the present invention, and together with the description serve to explain the principles of the invention; it being understood, however, that this invention is not limited to the precise arrangements shown.

DETAILED DESCRIPTION

The following description of certain examples of the invention should not be used to limit the scope of the present invention. Other examples, features, aspects, embodiments, and advantages of the invention will become apparent to those skilled in the art from the following description, which is by way of illustration, one of the best modes contemplated for carrying out the invention. As will be realized, the invention is capable of other different and obvious aspects, all without departing from the invention. Accordingly, the drawings and descriptions should be regarded as illustrative in nature and not restrictive.

FIG. 1 shows a wall assembly (10) that includes a header track (20), a plurality of studs (30), a drywall or wallboard panel (40), and an exemplary finishing accessory (100). In some embodiments, the wall assembly may include two or more wallboard panels on a respective side of the wall assembly. Wall assembly (10) is constructed such that the upper end of each stud (30) is received within header track (20), the upper surface of a web (22) of header track (20) is installed against a horizontal support structure (50), and wallboard panel (40) is attached to stud (30) and positioned such that a gap (60) is formed between a top edge (42) of wallboard panel (40) and a lower surface (51) of horizontal support structure (50). As shown, gap (60) is defined by the top edge of wallboard panel (40) the lower surface (51) of horizontal support structure and the outer surface of the leg or flange (24) of header track (20). In this embodiment, gap (60) also includes an opening opposite the outer surface of the flange (24) of header track (20). In some embodiments, header track (20) may comprise one or more intumescent strips attached to one or both flanges (24) and/or web (22) of header track (20).

Wall assembly (10) may also include a footer track (not shown) that is vertically spaced apart from, and aligned with, header track (20). The footer track may be configured to receive a lower end (not shown) of each stud (30) of the plurality of studs (30). Header track (20) and the footer track may comprise either standard header and footer tracks (i.e., non-slotted or solid leg tracks) or slotted header and footer tracks. In some embodiments, each stud (30) of the plurality of studs (30) may be installed such that there is a gap (31) between the top of stud (30) and web (22) of header track (20). That gap (31) may comprise any suitable distance to allow for movement of studs (30) relative to header track (20) after installation, which may result from a variety of factors, including but not limited to thermal expansion of studs (30) or deflection of the horizontal support structure (50) due to seismic activity or loads on higher floors. The size of the gap (31) between the top of studs (30) and web (22) of header track (20) may correspond to the size of gap (60) between wallboard panel (40) and horizontal support structure (50). The size of gap (60) and the gap (31) between the top of studs (30) and web (22) of header track (20) may depend on the amount of deflection desired for a particular application. By way of example only, the size of gap (60) and the gap (31) between the top of studs (30) and web (22) of header track (20) may range from approximately ⅜ inches to approximately 3 inches. Other various suitable sizes for gap (60) and the gap between the top of studs (30) and web (22) will be apparent to those of ordinary skill in the art. In some embodiments, slotted header track (20) may also be used to allow for ceiling deflections resulting from seismic activity or loads on higher floors.

One or more of the footer track (not shown), header track (20), and studs (30) may comprise sheet metal, such as steel, stainless steel, aluminum or combinations thereof. In other instances, one or more of the footer track, header track (20) and studs (30) may comprise plastics, other polymer-based or reinforced materials, or combinations thereof. In addition, in some embodiments, wallboard panel (40) may comprise a sheet or panel of drywall, sheetrock, gypsum board, plasterboard or other similar construction materials. It will be appreciated that in a multi-story building, horizontal support structure (50) may serve as a ceiling for one floor of the building while also serving as a floor for an adjacent floor of the building. Horizontal support structure (50) may comprise any suitable support structure, including but not limited to, a concrete deck, a fluted metal deck, or a support beam.

In the embodiment illustrated in FIG. 2, finishing accessory (100) comprises a bead (103) that is an L-bead. As shown, bead (103) comprises a first leg (102), a second leg (104), and a lip (106) that connects first leg (102) and second leg (104) to form an L-bead. The profile of first leg (102) and second leg (104) joining at lip (106) forms a substantially “L” shaped profile. In this embodiment, first leg (102) comprises an exterior surface (102a) and an interior surface (102b) and second leg (104) similarly comprises an exterior surface (104a) and an interior surface (104b). As shown, first leg (102) is connected to lip (106) at a fixed end (102c) and comprises a free end (102d) opposite the fixed end. In the illustrated embodiment, lip (106) comprises a vertical leg (106a) and a horizontal return (106b) that results in second leg (104) being inwardly offset from vertical leg (106a) of lip (106). Finishing accessory (100) further comprises a backing strip (110) extending along first leg (102) and a removable leg (120) extending along lip (106). In other embodiments, the horizontal return (106b) of lip (106) may be omitted such that first leg (102) and second leg (104) form a juncture along a common edge between first leg (102) and second leg (104). In those embodiments, lip (106) would comprise the juncture along a common edge between first leg (102) and second leg (104). Finishing accessory (100) may comprise other various suitable shapes, configurations, or profiles for the bead portion (103). In addition, finishing accessory (100) may have any desired length and/or width.

In the illustrated embodiment, first leg (102) and second leg (104) are substantially perpendicular to each other and second leg (104) is a perforated leg that includes a plurality of openings (108). Openings (108) may be configured to facilitate application of a finishing material, such as joint compound, veneer plaster, paint, or other similar materials, over second leg (104) to obtain a flush finish of second leg (104) when positioned over wallboard panel (40). As shown, the plurality of openings (108) includes a plurality of rows of circular openings in second leg (104). It will be appreciated that any suitable number of openings (108) may be included in second leg (104) and that openings (108) may be arranged in any desired pattern and/or have any size and shape suitable to allow the finishing material to sufficiently engage both second leg (104) and support wallboard panel (40). In some embodiments, openings (108) may be omitted entirely. Openings (108) may also facilitate installation of finishing accessory (100) in wall assembly (10) by facilitating attachment of second leg (104) to wallboard panel (40) via fasteners (not shown) inserted through openings (108) and into wallboard panel (40). In some embodiments, second leg (104) may be attached to wallboard panel (40) via fasteners inserted through the solid portions of second leg (104) and into wallboard panel (40). In other embodiments, second leg (104) may be attached to wallboard panel (40) via adhesive or any other suitable attachment means.

As shown, bead (103) of finishing accessory (100) comprises first leg (102), second leg (104), lip (106), and removable leg (120). In some embodiments, first leg (102), second leg (104), lip (106), and removable leg (120) may be of unitary construction such that they are formed from a single integral piece of material. In some embodiments, the components of bead (103) may be extruded or co-extruded together. However, in other embodiments, one or more of first leg (102), second leg (104), lip (106), and removable leg (120) may comprise non-integral, separate components that are attached to each other. It will thus be appreciated that bead (103) may have a unitary construction or be comprised of various components attached together to collectively form bead (103). In some embodiments, bead (103), including one or more of first leg (102), second leg (104), lip (106), and removable leg (120), may comprise polyvinyl chloride (PVC), steel, aluminum or any other suitable material, including but not limited to other suitable plastics, metals, paper products, and composites. In some embodiments, first leg (102), second leg (104), lip (106), and removable leg (120) may all comprise the same material, while in other embodiments first leg (102), second leg (104), lip (106), and removable leg (120) may comprise two or more different materials.

Finishing accessory (100) may further include components or materials having fire resistant and/or intumescent properties. In some embodiments, at least one portion of bead (103) may comprise material having fire resistant and/or intumescent properties and at least one other portion of bead (103) may comprise material that does not have fire resistant and/or intumescent properties, such that bead (103) includes both fire resistant portions and non-fire resistant portions. In other embodiments, the entire bead (103) may comprise material having fire resistant and/or intumescent properties. By way of example only, in some embodiments at least a portion of bead (103) may comprise material having fire resistant and/or intumescent properties, such as the material described in U.S. Patent Publication No. 2016/0348357 (Smith et al.), published on Dec. 1, 2016, the disclosure of which is incorporated by reference herein. In some embodiments, bead (103) may comprise material that contains graphite, sodium silicates, other additives, or combinations thereof. In some embodiments, bead (103) may comprise a nanocomposite material with fire resistant properties, including but not limited to IntuPlas and/or BernoGraph, which are sold by Pyrophobic Systems Ltd. of Barrie, Ontario, Canada. By way of example only, bead (103) may comprise a material having a composition such as those described in U.S. Pub. No. 2012/0022201, published Jan. 26, 2012, to Zhvanetskiy et al., the disclosure of which is incorporated herein by reference. Other examples of materials that could be used for bead (103) include but are not limited to: Charmor™, which is sold by Perstorp Holding AB of Malmo, Sweden; Delphi Intumescent Material, which is sold by Delphi Automotive LLC of Gillingham, Kent, United Kingdom; intumescent PVC materials sold by Dugdale Limited of Sowerby Bridge, West Yorkshire, United Kingdom; PVC granules sold by Hangzhou Juntai Plastic Products Co., Ltd. of Hangzhou, Zheijang, China; and FireCarb, which is sold by LKAB Minerals AB of Lulea, Sweden.

In the embodiment shown in FIG. 2, removable leg (120) extends from the vertical leg (106a) of lip (106) along the longitudinal length of first leg (102). In other embodiments, including those where lip (106) is omitted, removable leg (120) may extend from either first leg (102) or second leg (104) at any suitable location, length, and/or orientation. In some embodiments, removable leg (120) may be integrally attached to first leg (102), second leg (104), or lip (106) via extrusion of bead (103) during the manufacturing process. In the illustrated embodiment, removable leg (120) of finishing accessory (100) is configured to inhibit any finishing material, such as joint compound, veneer plaster, paint, or other similar materials applied to second leg (104) from being inadvertently applied to the surrounding components of finishing accessory (100) or wall assembly (10), such as strip (110) and lower surface (51) of horizontal support structure (50).

As shown, bead (103) further includes a frangible connection (107) extending between lip (106) and removable leg (120). More particularly, frangible connection (107) may have a thin and/or weakened section of material configured to selectively fracture upon being manipulated by a user. A user may thus separate removable leg (120) from lip (106) by grasping removable leg (120) at any location along the longitudinal length of removable leg (120) (e.g., a proximal end, a distal end, a middle portion, and/or etc.) and applying sufficient force to removable leg (120) in a direction generally away from lip (106) (e.g., an upward force, a downward force, a rightward force, or an angled force generally away from lip (106)). As used herein, the term “fracture” generally refers to the failure of the material itself such that the material may crack, rip, and/or tear for separation of removable leg (120) from bead (103). The term “fracture” is not intended to unnecessarily limit the invention described herein. In instances where lip (106) is omitted from bead (103), frangible connection (107) may be positioned along removable leg (120) such that the portion of removable leg (120) connecting to first leg (102) and/or second leg (104) has a thin and/or weakened material configured to selectively fracture in response to application of sufficient force.

In some embodiments, removable leg (120) may include one or more apertures and/or perforations along frangible connection (107) between removable leg (120) and lip (106) to further weaken frangible connection (107). In these embodiments, the apertures and/or perforations along frangible connection (107) are configured to facilitate removal of removable leg (120). It will be appreciated that such apertures and/or perforations are not required, but may be desirable to ease removal of removable leg (120) depending on the material(s) from which bead (103) may be manufactured. The apertures and/or perforations may be sized and shaped to enhance the ease in removing removable leg (120) while still inhibiting a finishing material that is applied to second leg (104) from contacting any surrounding components of finishing accessory (100) or wall assembly (10), as described above.

Removable leg (120) may be configured to be gripped directly by hand by the user for removal from lip (106). However, the user may alternatively grip removable leg (120) indirectly with a tool, including but not limited to, a pair of pliers or other suitable gripping devices, to manipulate removable leg (120) relative to lip (106). In this instance, applying a necessary force to removable leg (120) via the tool is operable to fracture frangible connection (107) and thereby separate removable leg (120) from lip (106). Other methods and/or tools for separating removable leg (120) from lip (106) may also be used. By way of example only, removable leg (120) may be removed from lip (106) by cutting removable leg (120) along frangible connection (107) with a knife, scissors, boxcutter, and/or other various suitable cutting means. While removable leg (120) is removably connected to lip (106) via frangible connection (107) in the illustrated embodiment, other embodiments of finishing accessory (100) may include alternative connections between removable leg (120) and lip (106). As merely an illustrative example, an adhesive connection or mechanical connection may be employed to removably connecting removable leg (120) to lip (106) of bead (103).

In the embodiment shown in FIGS. 1 and 2, finishing accessory (100) includes strip (110), which is a separate component attached to the exterior surface (102a) of first leg (102). In this embodiment, strip (110) is only located on first leg (102) and does not extend onto second leg (104). As shown, strip (110) comprises a substantially rectangular cross-section. In other embodiments strip (110) may comprise various other suitable cross-sections. By way of example only, strip (110) may comprise a squared, circular, or other suitable cross-section. In some embodiments, strip (110) may comprise a rectangular cross-section that is oriented such that the height (i.e., vertical dimension) of strip (110) is greater than the width (i.e., horizontal dimension) of strip (110). Strip (110) may be attached to first leg (102) using an adhesive, one or more fasteners, or any other attachment means as will be apparent to those of ordinary skill in the art. In some embodiments where strip (110) is attached to first leg (102) with a layer of adhesive, the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures by incorporating fire resistant properties. In some embodiments strip (110) may be attached to first leg (102) as a result of strip (110) and first leg (102) being coextruded together.

As shown in FIGS. 1 and 2, strip (110) comprises a base layer (112) and a fire resistant layer (114). Base layer (112) may comprise a resilient and/or compressible material, such as a closed cell foam or an open cell foam. In some embodiments, base layer (112) may comprise a material used for conventional backer rod or another substantially similar material. In the illustrated embodiment, fire resistant layer (114) is attached atop base layer (112) such that fire resistant layer (114) is positioned above base layer (112) and between horizontal support structure (50) and bead (103) in wall assembly (10). Fire resistant layer (114) may comprise material that has fire resistant properties.

In some embodiments, fire resistant layer (114) may comprise material that has intumescent properties that allow the material to expand and, in some embodiments char, in response to being subjected to elevated temperatures in order to resist fire. By way of example only, the fire resistant material may be configured to expand when it is exposed to temperatures at or above about 300 degrees Fahrenheit. In other examples, the fire resistant material may fully intumesce when exposed to temperatures at or above about 375 degrees Fahrenheit. This may help provide fire protection at the head of wall joint between wallboard panel (40) and horizontal support structure (50) where finishing accessory (100) is installed.

Fire resistant layer (114) may also comprise a resilient and/or compressible material similar to base layer (112). In some embodiments, fire resistant layer (114) may comprise intumescent tape, while in other embodiments fire resistant layer (114) may comprise an intumescent coating applied to the upper surface of base layer (112). In some embodiments, fire resistant layer (114) is substantially the same width and length as base layer (112) such that substantially the entire upper surface of base layer (112) is covered by fire resistant layer (114). In other embodiments, fire resistant layer (114) may cover less than the entire upper surface of base layer (112) provided fire resistant layer (114) comprises a sufficient amount of fire resistant material to allow finishing accessory (100) to provide the desired fire resistant properties.

Fire resistant layer (114) may be attached to base layer (112) using any conventional means or methods, including but not limited to an adhesive between fire resistant layer (114) and base layer (112). In embodiments that use an adhesive, the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures. By way of example only, in one embodiment, fire resistant layer (114) may comprise intumescent tape with an adhesive on the bottom surface. Accordingly, in such an embodiment, when fire resistant layer (114) is placed on top of base layer (112), the two layers (112, 114) are attached to each other with the adhesive.

FIG. 3 depicts an exemplary alternative finishing accessory (200) that is similar to finishing accessory (100), except that strip (210) is different from strip (110) described above. Bead (203) may be constructed similarly and may be made out of similar materials as bead (103) described above. Accordingly, the portions of finishing accessory (200) that are identical to those in finishing accessory (100) will not be described again. Unlike strip (110) described above that comprises a base layer (112) and a fire resistant layer (114), strip (210) comprises a single layer of material with fire resistant properties as similarly described above. Strip (210) may also comprise material that is resilient and/or compressible, such as closed cell foam or open cell foam. In some embodiments, strip (210) may comprise a material used for conventional backer rod or another substantially similar material.

In some embodiments, strip (210) may comprise material that also has intumescent properties. By way of example only, strip (210) may comprise a conventional backer rod material (e.g., closed cell foam, open cell foam, etc.) with fire resistant and intumescent properties. In the illustrated embodiment, strip (210) is a separate component attached to first leg (202) of finishing accessory (200). Strip (210) may be attached to first leg (202) using an adhesive, one or more conventional fasteners, or any other suitable attachment methods. In embodiments that use a layer of adhesive to attach strip (210) to first leg (202), the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures.

FIG. 4 depicts another exemplary alternative finishing accessory (300) that is similar to finishing accessories (100, 200), except that strip (310) is different from strips (110, 210) described above. Bead (303) may be constructed similarly and may be made out of similar materials as beads (103, 203) described above. Accordingly, the portions of finishing accessory (300) that are identical to those in finishing accessories (100, 200) will not be described again. Unlike strip (110) described above that comprises a base layer (112) and a fire resistant layer (114), in the illustrated embodiment strip (310) comprises a single layer of material. In some embodiments strip (310) may comprise material with sound insulating properties. In other words, strip (310) may comprises material that is configured to inhibit sound from traveling through strip (310). For example, strip (310) may comprise a material that has a density sufficient to allow the inclusion of finishing accessory (300) in the wall assembly to increase the sound transmission class (STC) rating of the wall assembly.

In some embodiments, strip (310) may comprise material that is resilient and/or compressible, such as closed cell foam or open cell foam, that may or may not have sound insulating properties. One example of a material with sound insulating properties that could be used for strip (310) is a sound insulating gasket, including but not limited to a product sold under the name “ArmaSeal” by Armacell LLC of Mebane, North Carolina. Of course, strip (310) is not required to comprise ArmaSeal as other suitable materials that provide the desired sound insulating properties may also be used. In some embodiments, strip (310) may comprise a material used for conventional backer rod or another similar material. In some embodiments, strip (310) may comprise material that also has fire resistant and/or intumescent properties in addition to sound insulation properties, while in other embodiments, strip (310) may comprise material that has sound insulation properties but does not have fire resistant and/or intumescent properties. By way of example only, strip (310) may comprise a conventional backer rod material (e.g., closed cell foam) with sound insulating properties. In still other embodiments, strip (310) may comprise material that does not have fire resistant and/or intumescent properties or sound insulation properties.

In the illustrated embodiment, strip (310) is a separate component attached to first leg (302) of finishing accessory (300). Strip (310) may be attached to first leg (302) using an adhesive, one or more conventional fasteners, or any other suitable attachment methods. In embodiments that use an adhesive layer to attach strip (310) to first leg (302), the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures as described in greater detail above.

FIG. 5 depicts another exemplary alternative finishing accessory (400). Finishing accessory (400) is similar to finishing accessory (300), except that finishing accessory (400) includes a strip (410) that comprises an adhesive layer (414) on the top surface of a base layer (412). Bead (403) may be constructed similarly and may be made out of similar materials as beads (103, 203, 303) described above. Base layer (412) is identical to strip (310) described above. Accordingly, the portions of finishing accessory (400) that are identical to those in finishing accessories (100, 200, 300) will not be described again. Adhesive layer (414) may comprise adhesive on the upper surface of adhesive layer (414) so that strip (410), and, as a result, finishing accessory (400), can be attached to the adjacent horizontal support structure (50). Adhesive layer (414) may comprise a piece of tape with adhesive on both the top and bottom surfaces of the tape, an adhesive coating, or any other material suitable to engage both underlying base layer (412) and an adjacent horizontal support structure (50) of wall assembly (10). In some embodiments, adhesive layer (414) may also comprise a resilient and/or compressible material. It should be noted that in some embodiments, an adhesive layer, such as adhesive layer (414), may be incorporated into finishing accessories (100, 200) described above as well. In that instance, adhesive layer (414) may be attached to the upper surface of fire resistant layer (114) or the upper surface of strip (210), respectively.

Adhesive layer (414) is substantially the same width and length as base layer (412) such that a substantial portion of the upper surface of base layer (412) is covered by adhesive layer (414). In other embodiments, adhesive layer (414) may cover less than the entire upper surface of base layer (412) provided that adhesive layer (414) comprises a sufficient amount of adhesive to adequately adhere base layer (412) and finishing accessory (400) to the adjacent horizontal support structure (50). Adhesive layer (414) may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures as described in greater detail above.

In the wall assembly (10) illustrated in FIG. 1, finishing accessory (100) is installed on top of wallboard panel (40) such that strip (110) is positioned within gap (60) between top edge (42) of wallboard panel (40) and the lower surface (51) of horizontal support structure (50). As shown, first leg (102) is positioned along top edge (42) of wallboard panel (40) and second leg (104) extends downwardly from lip (106) and contacts outer vertical surface (44) of wallboard panel (40). In some embodiments, first leg (102) may be attached to wallboard panel (40) with adhesive between interior surface (102b) of first leg (102) and top edge (42), one or more fasteners securing first leg (102) to top edge (42), or any other suitable attachment means. Strip (110) may be dimensioned such that upper surface (116) of strip (110) contacts the lower surface (51) of horizontal support structure (50). In some embodiments, depending on the contour of lower surface (51) (e.g., if there are irregularities or a rough finish on a concrete slab, if horizontal support structure (50) comprises a fluted deck, etc.), some portions of upper surface (116) of strip (110) may contact lower surface (51) of horizontal structure (50) while other portions of upper surface (116) of strip (110) may not. In embodiments where the upper surface (116) of strip (110) contacts the lower surface (51) of horizontal support structure (50), that contact may provide a seal that helps prevent the spread of smoke at the head of wall joint and reduces the amount of sound that passes through the head of wall joint, even when strip (110) is in a normal or unexpanded state. In embodiments where strip (110) comprises material with intumescent properties, at least a portion of strip (110) may be configured to expand when exposed to elevated temperatures, thereby expanding into surrounding gaps and substantially sealing the head of wall joint to help prevent the spread of smoke and fire through the joint.

In embodiments where strip (110) comprises compressible material, such a construction allows wallboard panel (40) to travel vertically during deflections because strip (110) can be compressed as wallboard panel (40) travels upward toward horizontal supporting structure (50). In embodiments where strip (110) comprises material that is also resilient, strip (110) can then return to its original size to substantially fill gap (60) as wallboard panel (40) travels downward away from horizontal supporting structure (50). This may help prevent cracking of wallboard panel (40) and surrounding materials during deflections.

As shown in FIG. 1, gap (60) is substantially filled by first leg (102) of finishing accessory (100) and strip (110) in both the vertical and horizontal dimensions (i.e., height and width, respectively) of gap (60). In other words, the width of first leg (102) and strip (110) are substantially equal to the width of gap (60). In other embodiments first leg (102) and/or strip (110) may comprise a width that is less than the width of gap (60) which may result in the interior side surface (113) of strip (110) being horizontally spaced apart from the leg or flange (24) of header track (20). In other embodiments, such as the embodiment shown in FIG. 6, the first leg may be wider than the strip such that the free end of the first leg extends laterally beyond the interior side surface of the strip. In other embodiments, such as the embodiments shown in FIGS. 7-38, the strip may be wider than the first leg such that at least a portion of the strip extends laterally beyond the free end of the first leg. In some embodiments, regardless of the width of the strip relative to the width of the first leg, the strip may be positioned along the first leg such that the interior side surface is positioned laterally beyond the free end of the first leg. Having the interior side surface of the strip positioned laterally beyond the free end of the first leg may help keep the free end of the first leg spaced apart from flange (24) of header track (20), which may help the finishing accessory remain within gap (60) as wallboard panel (40) vertically deflects. Similarly, in some embodiments, the width of the first leg may be less than the width of wallboard panel (40), which may also result in the free end of the first leg being spaced apart from flange (24) of header track (20).

In some embodiments, at least about 50% of the exterior surface (102a) of first leg (102) is covered by strip (110). In other embodiments, at least about 75% of the exterior surface (102a) of first leg (102) is covered by strip (110), and in still other embodiments, including but not limited to the embodiment shown in FIG. 2, substantially all of the exterior surface (102a) of first leg (102) is covered by strip (110). Having strip (110) cover at least about 50% of the exterior surface (102a) of first leg (102) may help fill in gap (60). In the embodiment illustrated in FIGS. 1 and 2, strip (110) is positioned along first leg (102) such that the outer side surface (115) is positioned adjacent to leg (106) and the fixed end of first leg (102). Positioning strip (110) such that the outer side surface (115) is positioned adjacent to leg (106) and the fixed end of first leg (102) may make it easier to create a smooth, finished appearance by applying a layer of finishing material and/or a finishing component to conceal strip (110).

As shown in FIG. 1, the combined height of first leg (102) and strip (110) is substantially equal to the height of gap (60) such that the upper surface (116) of strip (110) contacts the lower surface (51) of horizontal support structure (50). In other embodiments, the combined height of first leg (102) and strip (110) may be greater than the height of gap (60). In this instance, finishing accessory may still be installed as shown as strip (110) may be compressed to fit within gap (60). By way of example only, both gap (60) and the combined height of strip (110) and first leg (102) may be approximately ⅜ inches. It should be understood that gap (60) and the combined height of strip (110) and first leg (102) may be other suitable sizes depending on the particular application.

The thickness, or height, of first leg (102) may vary depending on what material first leg (102) is made out of. By way of example only, in some embodiments where first leg (102) comprises a plastic, first leg (102) may have thickness or height of approximately 0.028 inches. In other embodiments where first leg (102) comprises a metal, first leg (102) may have a thickness or height of approximately 0.010 inches. Strip (110) may comprise any thickness, or height, suitable to provide the desired combined height of strip (110) and first leg (102).

Finishing accessory (100) may be installed by placing first leg (102) on wallboard panel (40) such that first leg (102) contacts and rests on top edge (42) of wallboard panel (40), while second leg (104) is in contact with outer vertical surface (44) of wallboard panel (40). As described above, finishing accessory (100) is preferably positioned such that upper surface (116) of strip (110) is in contact with the lower surface (51) of horizontal support structure (50). In some embodiments, second leg (104) may be attached to outer surface (44) of wallboard panel (40) by inserting one or more fasteners through second leg (104) and into wallboard panel (40), although this is not required. Once finishing accessory (100) is in the desired position, a layer of finishing material, such as joint compound, veneer plaster, paint, or other similar materials, may be applied over second leg (104) and a portion of outer surface (44) of wallboard panel (40) to produce a flush finish. In embodiments that include a removable leg (120), the removable leg (120) may be separated from bead (103) and removed once the desired amount of finishing material has been applied to second leg (104) and wallboard panel (40). In some embodiments, wall assembly (10) may be finished by installing one or more finishing components, such as joint tape and joint compound, at the top of wall assembly (10) to cover strip (110). In those embodiments, the joint compound may be applied such that it contacts at least a portion of the outer surface of strip (110). In other embodiments, the finishing component may be omitted and strip (110) may be left exposed.

FIG. 6 depicts an alternate wall assembly (10′) that is substantially similar to wall assembly (10) shown in FIG. 1 and described above with a few differences.

Accordingly, the portions of wall assembly (10′) that are identical to those in wall assembly (10) are labeled with the same item numbers as above and will not be described again. As shown in FIG. 6, wall assembly (10′) includes two wallboard panels (40) and alternate embodiment of a finishing accessory (100′). Finishing accessory (100′) is similar to finishing accessory (100), except that in the illustrated embodiment first leg (102′) of finishing accessory (100′) extends beyond the interior side surface of strip (110′). In other words, the width of strip (110′) is less than the width of first leg (102′). In addition, in wall assembly (10′), strip (110′) is positioned within gap (60) between the top edges of the wallboard panels, however the width of strip (110′) is less than the width of gap (60). As a result, the interior side surface of strip (110′) is spaced apart from the outer surface of the leg or flange (24) of header track (20), which creates a gap (61) between the leg or flange (24) of header track (20) and strip (110′). Similar to strip (110) described above, in some embodiments, strip (110′) may be dimensioned such that the upper surface of strip (110′) contacts the lower surface (51) of horizontal support structure (50) when finishing accessory (100′) is installed in wall assembly (10′). In addition, wall assembly (10′) depicted in FIG. 6 includes finishing material (45′) applied over second leg (104′) and a finishing component (47′) positioned over strip (110′). In some embodiments, finishing component (47′) may comprise joint tape and joint compound. In some of those embodiments, the joint compound and joint tape may be applied such that at least one of the joint tape and joint compound contacts at least a portion of the outer side surface (115′) of strip (110′). Although strip (110′) is shown as comprising one layer of material, similar to strips (210, 310) described above, in other embodiments strip (110′) may comprise two or more layers of material, similar to strips (110, 410) described above. In addition, strip (110′) may comprise material having any of the properties (e.g., fire resistant, intumescent, sound insulating, compressible and/or resilient, etc.) described above with regard to strips (110, 210, 310, 410).

FIGS. 7-14 depict another exemplary alternative finishing accessory (500). Finishing accessory (500) is shown in FIGS. 7-13 with a symbolic break to indicate that it could be any length, similar to finishing accessory (100) described above. As shown, finishing accessory (500) is similar to finishing accessories (100, 200, 300, 400) described above, except that bead (503) does not include a removable leg and strip (510) comprises a different cross-section and relative width compared to strips (110, 210, 310, 410) described above. Accordingly, the portions of finishing accessory (500) that are identical to those in finishing accessories (100, 200, 300, 400) will not be described again. Unlike strips (110, 210, 310, 410) described above that comprise a rectangular cross-section where the width of strips (110, 210, 310, 410) is greater than the height of strips (110, 210, 310, 410), in the illustrated embodiment, strip (510) comprises a rectangular cross-section where the height of strip (510) is greater than the width of strip (510). In addition, in the embodiment shown in FIGS. 7-14, strip (510) is positioned on first leg (502), such that strip (510) extends laterally away from the fixed end of second leg (502) beyond the free end of first leg (502).

In the illustrated embodiment, strip (510) is a separate component attached to first leg (502) of finishing accessory (500). Strip (510) may be attached to first leg (502) using an adhesive, one or more conventional fasteners, or any other suitable attachment methods. In embodiments that use a layer of adhesive to attach strip (510) to first leg (502), the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures. Although strip (510) is shown as comprising one layer of material, similar to strips (210, 310) described above, in other embodiments strip (510) may comprise two or more layers of material, similar to strips (110, 410) described above. In addition, strip (510) may comprise material similar to the material for strips (110, 210, 310, 410) described above (e.g., closed cell foam, open cell foam, etc.) and that material may have any of the properties (e.g., fire resistant, intumescent, sound insulating, compressible and/or resilient, etc.) described above with regard to strips (110, 210, 310, 410).

Similarly, bead (503) may be constructed similarly and may be made out of similar materials as beads (103, 203, 303, 403) described above.

FIG. 14 depicts an exemplary alternative wall assembly (1010) that is similar to wall assemblies (10, 10′) described above, except that wall assembly (1010) includes finishing accessory (500) instead of finishing accessory (100, 100′). Accordingly, the portions of wall assembly (1010) that are identical to those in wall assemblies (10, 10′) will not be described again. In addition, portions of wall assembly (1010) that are identical to those in wall assembly (10) are labeled with the same item numbers as above.

In the wall assembly (1010) illustrated in FIG. 14, finishing accessory (500) is installed on top of wallboard panel (40) such that strip (110) is positioned within gap (60) between top edge (42) of wallboard panel (40) and the lower surface (51) of horizontal support structure (50). As shown, first leg (502) is positioned along top edge (42) of wallboard panel (40) and second leg (504) extends downwardly from lip (506) and contacts outer vertical surface (44) of wallboard panel (40). Strip (510) may be dimensioned such that upper surface (516) of strip (510) contacts the lower surface (51) of horizontal support structure (50). In embodiments where the upper surface (516) of strip (510) contacts the lower surface (51) of horizontal support structure (50), that contact may provide a seal that helps prevent the spread of smoke at the head of wall joint and reduces the amount of sound that passes through the head of wall joint, even when strip (510) is in a normal or unexpanded state. In embodiments where strip (510) comprises material with intumescent properties, at least a portion of strip (510) may be configured to expand when exposed to elevated temperatures, thereby expanding into surrounding gaps and substantially sealing the head of wall joint to help prevent the spread of smoke and fire through the joint.

In embodiments where strip (510) comprises compressible material, such a construction allows wallboard panel (40) to travel vertically during deflections because strip (510) can be compressed as wallboard panel (40) travels upward toward horizontal supporting structure (50). In embodiments where strip (510) comprises material that is also resilient, strip (510) can then return to its original size to substantially fill gap (60) as wallboard panel (40) travels downward away from horizontal supporting structure (50). This may help prevent cracking of wallboard panel (40) and surrounding materials during deflections.

As shown in FIG. 14, gap (60) is substantially filled by first leg (502) of finishing accessory (500) and strip (510) in both the vertical and horizontal dimensions (i.e., height and width, respectively) of gap (60). In other words, the width of first leg (502) and strip (510) are substantially equal to the width of gap (60), although in the illustrated embodiment, the width of strip (510) is greater than the width of leg (502). In other embodiments first leg (502) and/or strip (510) may comprise a width that is less than the width of gap (60) which may result in the interior side surface (513) of strip (510) being horizontally spaced apart from the leg or flange (24) of header track (20). In other embodiments, similar to the embodiment shown in FIG. 6, the first leg (502) may be wider than strip (510). As shown in FIG. 14, the combined height of first leg (502) and strip (510) is substantially equal to the height of gap (60) such that the upper surface (516) of strip (510) contacts the lower surface (51) of horizontal support structure (50). In other embodiments, the combined height of first leg (502) and strip (510) may be greater than the height of gap (60). In this instance, finishing accessory may still be installed as shown as strip (510) may be compressed to fit within gap (60). By way of example only, both gap (60) and the combined height of strip (510) and first leg (502) may be approximately ⅜ inches. It should be understood that gap (60) and the combined height of strip (510) and first leg (502) may be other suitable sizes depending on the particular application.

FIGS. 15-22 depict another exemplary alternative finishing accessory (600). Finishing accessory (600) is shown in FIGS. 15-21 with a symbolic break to indicate that it could be any length, similar to finishing accessory (100) described above. As shown, finishing accessory (600) is similar to finishing accessories (100, 200, 300, 400) described above, except that strip (610) comprises a different cross-section and relative width compared to strips (110, 210, 310, 410) described above. Finishing accessory (600) is also identical to finishing accessory (500) described above, except that finishing accessory (600) also includes a removable leg (620) similar to removable leg (120) described above. Accordingly, the portions of finishing accessory (600) that are identical to those in finishing accessories (100, 200, 300, 400) will not be described again. Unlike strips (110, 210, 310, 410) described above that comprise a rectangular cross-section where the width of strips (110, 210, 310, 410) is greater than the height of strips (110, 210, 310, 410), in the illustrated embodiment, strip (610) comprises a rectangular cross-section where the height of strip (610) is greater than the width of strip (610), similar to strip (510) described above. In addition, in the embodiment shown in FIGS. 15-22, strip (610) is positioned on first leg (602), such that strip (610) extends laterally away from the fixed end of second leg (602) beyond the free end of first leg (602).

In the illustrated embodiment, strip (610) is a separate component attached to first leg (602) of finishing accessory (600). Strip (610) may be attached to first leg (602) using an adhesive, one or more conventional fasteners, or any other suitable attachment methods. In embodiments that use a layer of adhesive to attach strip (610) to first leg (602), the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures. Although strip (610) is shown as comprising one layer of material, similar to strips (210, 310, 510) described above, in other embodiments strip (610) may comprise two or more layers of material, similar to strips (110, 410) described above. In addition, strip (610) may comprise material similar to the material for strips (110, 210, 310, 410, 510) described above (e.g., closed cell foam, open cell foam, etc.) and that material may have any of the properties (e.g., fire resistant, intumescent, sound insulating, compressible and/or resilient, etc.) described above with regard to strips (110, 210, 310, 410, 510). Similarly, bead (603) may be constructed similarly and may be made out of similar materials as beads (103, 203, 303, 403, 503) described above.

FIG. 22 depicts an exemplary alternative wall assembly (1110) that is similar to wall assemblies (10, 10′, 1010) described above, except that wall assembly (1110) includes finishing accessory (600) instead of finishing accessory (100, 100′, 500). Accordingly, the portions of wall assembly (1110) that are identical to those in wall assemblies (10, 10′, 1010) will not be described again. In addition, portions of wall assembly (1110) that are identical to those in wall assembly (10) are labeled with the same item numbers as above.

In the wall assembly (1110) illustrated in FIG. 22, finishing accessory (600) is installed on top of wallboard panel (40) such that strip (610) is positioned within gap (60) between top edge (42) of wallboard panel (40) and the lower surface (51) of horizontal support structure (50). As shown, first leg (602) is positioned along top edge (42) of wallboard panel (40) and second leg (604) extends downwardly from lip (606) and contacts outer vertical surface (44) of wallboard panel (40). Strip (610) may be dimensioned such that upper surface (616) of strip (610) contacts the lower surface (51) of horizontal support structure (50). In embodiments where the upper surface (616) of strip (610) contacts the lower surface (51) of horizontal support structure (50), that contact may provide a seal that helps prevent the spread of smoke at the head of wall joint and reduces the amount of sound that passes through the head of wall joint, even when strip (610) is in a normal or unexpanded state. In embodiments where strip (610) comprises material with intumescent properties, at least a portion of strip (610) may be configured to expand when exposed to elevated temperatures, thereby expanding into surrounding gaps and substantially sealing the head of wall joint to help prevent the spread of smoke and fire through the joint.

In embodiments where strip (610) comprises compressible material, such a construction allows wallboard panel (40) to travel vertically during deflections because strip (610) can be compressed as wallboard panel (40) travels upward toward horizontal supporting structure (50). In embodiments where strip (610) comprises material that is also resilient, strip (610) can then return to its original size to substantially fill gap (60) as wallboard panel (40) travels downward away from horizontal supporting structure (50). This may help prevent cracking of wallboard panel (40) and surrounding materials during deflections.

As shown in FIG. 22, gap (60) is substantially filled by first leg (602) of finishing accessory (600) and strip (610) in both the vertical and horizontal dimensions (i.e., height and width, respectively) of gap (60). In other words, the width of first leg (602) and strip (610) are substantially equal to the width of gap (60), although in the illustrated embodiment, the width of strip (610) is greater than the width of leg (602). In other embodiments first leg (602) and/or strip (610) may comprise a width that is less than the width of gap (60) which may result in the interior side surface (613) of strip (610) being horizontally spaced apart from the leg or flange (24) of header track (20). In other embodiments, similar to the embodiment shown in FIG. 6, the first leg (602) may be wider than strip (610). As shown in FIG. 22, the combined height of first leg (602) and strip (610) is substantially equal to the height of gap (60) such that the upper surface (616) of strip (610) contacts the lower surface (51) of horizontal support structure (50). In other embodiments, the combined height of first leg (602) and strip (610) may be greater than the height of gap (60). In this instance, finishing accessory may still be installed as shown as strip (610) may be compressed to fit within gap (60). By way of example only, both gap (60) and the combined height of strip (610) and first leg (602) may be approximately ⅜ inches. It should be understood that gap (60) and the combined height of strip (610) and first leg (602) may be other suitable sizes depending on the particular application.

FIGS. 23-30 depict another exemplary alternative finishing accessory (700). Finishing accessory (700) is shown in FIGS. 23-29 with a symbolic break to indicate that it could be any length, similar to finishing accessory (100) described above. As shown, finishing accessory (700) is similar to finishing accessories (100, 200, 300, 400) described above, except that bead (703) comprises a substantially J-shaped profile instead of the substantially L-shaped profile of beads (103, 203, 303, 403) described above and strip (710) comprises a different cross-section and relative width compared to strips (110, 210, 310, 410) described above. Accordingly, the portions of finishing accessory (700) that are identical to those in finishing accessories (100, 200, 300, 400) will not be described again.

In the embodiment illustrated in FIGS. 23-30, finishing accessory (700) comprises a bead (703) that is a J-bead. As shown, bead (703) comprises a first leg (702), a second leg (704), a third leg (705), and a lip (706). The profile formed by first leg (702), second leg (704), third leg (705), and lip (706) is a substantially “J” shaped profile. In the illustrated embodiment, first leg is connected to lip (706) at a first end and connected to third leg (705) at a second end. As shown, third leg (705) extends downwardly from first leg (702). First leg (702) and third leg (705) may be substantially perpendicular to each other and third leg (705) may be substantially parallel to second leg (704). In this embodiment, third leg (705) is shorter than second leg (704). As shown, first leg (702), second leg (704), and third leg (705) form a pocket (707) that may be configured to receive the upper end of wallboard panel (40).

In addition, unlike strips (110, 210, 310, 410) described above that comprise a rectangular cross-section where the width of strips (110, 210, 310, 410) is greater than the height of strips (110, 210, 310, 410), in the illustrated embodiment, strip (710) comprises a rectangular cross-section where the height of strip (710) is greater than the width of strip (710), similar to strips (510, 610) described above. In addition, in some embodiments, strip (710) may be positioned on first leg (702), such that strip (710) extends laterally away from the first end of second leg (702) beyond the second end of first leg (702) and the vertical plane that contains third leg (705).

In the illustrated embodiment, strip (710) is a separate component attached to first leg (702) of finishing accessory (700). Strip (710) may be attached to first leg (702) using an adhesive, one or more conventional fasteners, or any other suitable attachment methods. In embodiments that use a layer of adhesive to attach strip (710) to first leg (702), the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures. Although strip (710) is shown as comprising one layer of material, similar to strips (210, 310, 510, 610) described above, in other embodiments strip (710) may comprise two or more layers of material, similar to strips (110, 410) described above. In addition, strip (710) may comprise material similar to the material for strips (110, 210, 310, 410, 510, 610) described above (e.g., closed cell foam, open cell foam, etc.) and that material may have any of the properties (e.g., fire resistant, intumescent, sound insulating, compressible and/or resilient, etc.) described above with regard to strips (110, 210, 310, 410, 510, 610). Similarly, bead (703) may be constructed similarly and may be made out of similar materials as beads (103, 203, 303, 403, 503, 603) described above.

FIG. 30 depicts an exemplary alternative wall assembly (1210) that is similar to wall assemblies (10, 10′, 1010, 1110) described above, except that wall assembly (1210) includes finishing accessory (700) instead of finishing accessory (100, 100′, 500, 600). Accordingly, the portions of wall assembly (1210) that are identical to those in wall assemblies (10, 10′, 1010, 1110) will not be described again. In addition, portions of wall assembly (1210) that are identical to those in wall assembly (10) are labeled with the same item numbers as above.

In the wall assembly (1210) illustrated in FIG. 30, finishing accessory (700) is installed on top of wallboard panel (40) such that strip (710) is positioned within gap (60) between top edge (42) of wallboard panel (40) and the lower surface (51) of horizontal support structure (50). As shown, first leg (702) is positioned along top edge (42) of wallboard panel (40) and second leg (604) extends downwardly from lip (606) and contacts outer vertical surface (44) of wallboard panel (40). In addition, as shown, third leg (705) is positioned between wallboard panel (40) and leg or flange (24) of header track (20) such that the upper end of wallboard panel (40) is received within pocket (703) of finishing accessory (700). In some embodiments, third leg (705) may be in contact with the inner vertical surface (49) of wallboard panel (40) and/or the outer surface of flange (24) of header track (20). Strip (710) may be dimensioned such that upper surface (716) of strip (710) contacts the lower surface (51) of horizontal support structure (50). In embodiments where the upper surface (716) of strip (710) contacts the lower surface (51) of horizontal support structure (50), that contact may provide a seal that helps prevent the spread of smoke at the head of wall joint and reduces the amount of sound that passes through the head of wall joint, even when strip (710) is in a normal or unexpanded state. In embodiments where strip (710) comprises material with intumescent properties, at least a portion of strip (710) may be configured to expand when exposed to elevated temperatures, thereby expanding into surrounding gaps and substantially sealing the head of wall joint to help prevent the spread of smoke and fire through the joint.

In embodiments where strip (710) comprises compressible material, such a construction allows wallboard panel (40) to travel vertically during deflections because strip (710) can be compressed as wallboard panel (40) travels upward toward horizontal supporting structure (50). In embodiments where strip (710) comprises material that is also resilient, strip (710) can then return to its original size to substantially fill gap (60) as wallboard panel (40) travels downward away from horizontal supporting structure (50). This may help prevent cracking of wallboard panel (40) and surrounding materials during deflections.

As shown in FIG. 30, gap (60) is substantially filled by first leg (702) of finishing accessory (700) and strip (710) in both the vertical and horizontal dimensions (i.e., height and width, respectively) of gap (60). In other words, the width of first leg (702) and strip (710) are substantially equal to the width of gap (60), although in the illustrated embodiment, the width of strip (710) is greater than the width of leg (702). In other embodiments first leg (702) and/or strip (710) may comprise a width that is less than the width of gap (60) which may result in the interior side surface (713) of strip (710) being horizontally spaced apart from the leg or flange (24) of header track (20). In other embodiments, similar to the embodiment shown in FIG. 6, the first leg (702) may be wider than strip (710). As shown in FIG. 30, the combined height of first leg (702) and strip (710) is substantially equal to the height of gap (60) such that the upper surface (716) of strip (710) contacts the lower surface (51) of horizontal support structure (50). In other embodiments, the combined height of first leg (702) and strip (710) may be greater than the height of gap (60). In this instance, finishing accessory may still be installed as shown as strip (710) may be compressed to fit within gap (60). By way of example only, both gap (60) and the combined height of strip (710) and first leg (702) may be approximately ⅜ inches. It should be understood that gap (60) and the combined height of strip (710) and first leg (702) may be other suitable sizes depending on the particular application.

FIGS. 31-38 depict another exemplary alternative finishing accessory (800). Finishing accessory (800) is shown in FIGS. 31-37 with a symbolic break to indicate that it could be any length, similar to finishing accessory (100) described above. As shown, finishing accessory (800) is similar to finishing accessories (100, 200, 300, 400) described above, except that bead (803) comprises a substantially J-shaped profile instead of the substantially L-shaped profile of beads (103, 203, 303, 403) described above and strip (810) comprises a different cross-section and relative width compared to strips (110, 210, 310, 410) described above. Finishing accessory (800) is also identical to finishing accessory (700) described above, except that finishing accessory (800) also includes a removable leg (820) similar to removable leg (120) described above. Accordingly, the portions of finishing accessory (800) that are identical to those in finishing accessories (100, 200, 300, 400) will not be described again.

In the embodiment illustrated in FIGS. 31-38, finishing accessory (800) comprises a bead (803) that is a J-bead. As shown, bead (803) comprises a first leg (802), a second leg (804), a third leg (805), a lip (806), and a removable leg (820). The profile formed by first leg (802), second leg (804), third leg (805), and lip (806) is a substantially “J” shaped profile. In the illustrated embodiment, first leg is connected to lip (806) at a first end and connected to third leg (805) at a second end. As shown, third leg (805) extends downwardly from first leg (802). First leg (802) and third leg (805) may be substantially perpendicular to each other and third leg (805) may be substantially parallel to second leg (804). In this embodiment, third leg (805) is shorter than second leg (804). As shown, first leg (802), second leg (804), and third leg (805) form a pocket (807) that may be configured to receive the upper end of wallboard panel (40).

In addition, unlike strips (110, 210, 310, 410) described above that comprise a rectangular cross-section where the width of strips (110, 210, 310, 410) is greater than the height of strips (110, 210, 310, 410), in the illustrated embodiment, strip (810) comprises a rectangular cross-section where the height of strip (810) is greater than the width of strip (810), similar to strips (510, 610, 710) described above. In addition, in some embodiments, strip (810) may be positioned on first leg (802), such that strip (810) extends laterally away from the first end of second leg (802) beyond the second end of first leg (802) and the vertical plane that contains third leg (805).

In the illustrated embodiment, strip (810) is a separate component attached to first leg (802) of finishing accessory (800). Strip (810) may be attached to first leg (802) using an adhesive, one or more conventional fasteners, or any other suitable attachment methods. In embodiments that use a layer of adhesive to attach strip (810) to first leg (802), the adhesive may be fire resistant or, in other words, able to maintain its adhesive qualities at elevated temperatures. Although strip (810) is shown as comprising one layer of material, similar to strips (210, 310, 510, 610, 710) described above, in other embodiments strip (810) may comprise two or more layers of material, similar to strips (110, 410) described above. In addition, strip (810) may comprise material similar to the material for strips (110, 210, 310, 410, 510, 610, 710) described above (e.g., closed cell foam, open cell foam, etc.) and that material may have any of the properties (e.g., fire resistant, intumescent, sound insulating, compressible and/or resilient, etc.) described above with regard to strips (110, 210, 310, 410, 510, 610, 710). Similarly, bead (803) may be constructed similarly and may be made out of similar materials as beads (103, 203, 303, 403, 503, 603, 703) described above.

FIG. 38 depicts an exemplary alternative wall assembly (1310) that is similar to wall assemblies (10, 10′, 1010, 1110, 1210) described above, except that wall assembly (1310) includes finishing accessory (800) instead of finishing accessory (100, 100′, 500, 600, 700). Accordingly, the portions of wall assembly (1310) that are identical to those in wall assemblies (10, 10′, 1010, 1110, 1210) will not be described again. In addition, portions of wall assembly (1310) that are identical to those in wall assembly (10) are labeled with the same item numbers as above.

In the wall assembly (1310) illustrated in FIG. 38, finishing accessory (800) is installed on top of wallboard panel (40) such that strip (810) is positioned within gap (60) between top edge (42) of wallboard panel (40) and the lower surface (51) of horizontal support structure (50). As shown, first leg (802) is positioned along top edge (42) of wallboard panel (40) and second leg (804) extends downwardly from lip (806) and contacts outer vertical surface (44) of wallboard panel (40). In addition, as shown, third leg (805) is positioned between wallboard panel (40) and leg or flange (24) of header track (20) such that the upper end of wallboard panel (40) is received within pocket (803) of finishing accessory (800). In some embodiments, third leg (805) may be in contact with the inner vertical surface (49) of wallboard panel (40) and/or the outer surface of flange (24) of header track (20). Strip (810) may be dimensioned such that upper surface (816) of strip (810) contacts the lower surface (51) of horizontal support structure (50). In embodiments where the upper surface (816) of strip (810) contacts the lower surface (51) of horizontal support structure (50), that contact may provide a seal that helps prevent the spread of smoke at the head of wall joint and reduces the amount of sound that passes through the head of wall joint, even when strip (810) is in a normal or unexpanded state. In embodiments where strip (810) comprises material with intumescent properties, at least a portion of strip (810) may be configured to expand when exposed to elevated temperatures, thereby expanding into surrounding gaps and substantially sealing the head of wall joint to help prevent the spread of smoke and fire through the joint.

In embodiments where strip (810) comprises compressible material, such a construction allows wallboard panel (40) to travel vertically during deflections because strip (810) can be compressed as wallboard panel (40) travels upward toward horizontal supporting structure (50). In embodiments where strip (810) comprises material that is also resilient, strip (810) can then return to its original size to substantially fill gap (60) as wallboard panel (40) travels downward away from horizontal supporting structure (50). This may help prevent cracking of wallboard panel (40) and surrounding materials during deflections.

As shown in FIG. 38, gap (60) is substantially filled by first leg (802) of finishing accessory (800) and strip (810) in both the vertical and horizontal dimensions (i.e., height and width, respectively) of gap (60). In other words, the width of first leg (802) and strip (810) are substantially equal to the width of gap (60), although in the illustrated embodiment, the width of strip (810) is greater than the width of leg (802). In other embodiments first leg (802) and/or strip (810) may comprise a width that is less than the width of gap (60) which may result in the interior side surface (813) of strip (810) being horizontally spaced apart from the leg or flange (24) of header track (20). In other embodiments, similar to the embodiment shown in FIG. 6, the first leg (802) may be wider than strip (810). As shown in FIG. 38, the combined height of first leg (802) and strip (810) is substantially equal to the height of gap (60) such that the upper surface (816) of strip (810) contacts the lower surface (51) of horizontal support structure (50). In other embodiments, the combined height of first leg (802) and strip (810) may be greater than the height of gap (60). In this instance, finishing accessory may still be installed as shown as strip (810) may be compressed to fit within gap (60). By way of example only, both gap (60) and the combined height of strip (810) and first leg (802) may be approximately ⅜ inches. It should be understood that gap (60) and the combined height of strip (810) and first leg (802) may be other suitable sizes depending on the particular application.

Finishing accessories (100′, 200, 300, 400, 500, 600, 700, 800) may be installed in a similar manner as finishing accessory (100) described above.

The beads (103, 103′, 203, 303, 403, 503, 603, 703, 803) of finishing accessories (100, 100′, 200, 300, 400, 500, 600, 700, 800) are shown as comprising an L-bead profile or a J-bead profile. In other embodiments, a finishing accessory may comprise a bead having any profile suitable to allow the finishing accessory to be installed on top of a wallboard panel such that the strip is effectively positioned within the gap between the top edge of the wallboard panel and a lower surface of an adjacent horizontal support structure (50), including but not limited to an L-bead with or without a removable leg and a J-bead with or without a removable leg.

Having shown and described various embodiments of the present invention, further adaptations of the methods and systems described herein may be accomplished by appropriate modifications by one of ordinary skill in the art without departing from the scope of the present invention. Several of such potential modifications have been mentioned, and others will be apparent to those skilled in the art. For instance, the examples, embodiments, geometrics, materials, dimensions, ratios, steps, and the like discussed above are illustrative and are not required. Accordingly, the scope of the present invention should be considered in terms of any claims that may be presented and is understood not to be limited to the details of structure and operation shown and described in the specification and drawings.

Claims

1. A wall assembly comprising: a. a horizontal support structure comprising a lower surface;b. a wallboard panel comprising a width, a top edge and an outer vertical surface, wherein the wallboard panel is positioned such that there is a gap between the top edge of the wallboard panel and the lower surface of the horizontal support structure; andc. a framing accessory comprising (i) a first leg comprising a first leg width, wherein the first leg width is greater than or equal to the width of the wallboard panel,(ii) a second leg oriented substantially perpendicular relative to the first leg, and(iii) a strip attached to the first leg, wherein the strip comprises a material selected from the group consisting of open cell foam and closed cell foam,
2. The wall assembly of claim 1, wherein the gap comprises a gap width that is equal to the width of the wallboard panel, wherein the framing accessory is positioned within the wall assembly such that a portion of the gap extending from the exterior surface of the first leg to the lower surface of the horizontal support structure is substantially filled by the strip.
3. The wall assembly of claim 1, wherein the strip comprises an upper surface, a bottom surface opposite the upper surface of the strip, an interior side surface that extends between the bottom surface of the strip and the upper surface of the strip, and an outer side surface opposite the interior side surface of the strip, wherein the bottom surface extends from the interior side surface to the outer side surface, wherein the entire bottom surface is attached to the first leg.
4. The wall assembly of claim 1, wherein the strip comprises an upper surface, a bottom surface opposite the upper surface of the strip, an interior side surface that extends between the bottom surface of the strip and the upper surface of the strip, and an outer side surface opposite the interior side surface of the strip, wherein the bottom surface extends from the interior side surface to the outer side surface, wherein the interior side surface is substantially perpendicular to the first leg.
5. The wall assembly of claim 1, wherein the first leg width is greater than the width of the wallboard panel.
6. The wall assembly of claim 1, wherein the framing accessory further comprises a lip, wherein the lip connects the first leg and the second leg.
7. The wall assembly of claim 6, wherein the lip comprises a vertical leg and a horizontal return, wherein the first leg is connected to the vertical leg of the lip and the second leg is connected to the horizontal return of the lip.
8. The wall assembly of claim 1, wherein the strip comprises a first layer of material and a second layer of material.
9. The wall assembly of claim 8, wherein at least one of the first layer of material and the second layer of material comprises material having intumescent properties.
10. The wall assembly of claim 1, wherein at least one of the first leg and the second leg comprise material having intumescent properties.
11. The wall assembly of claim 1, wherein the strip comprises a strip width and the strip width is less than the first leg width.
12. The wall assembly of claim 1, wherein the strip comprises a material selected from the group consisting of fire resistant open cell foam and fire resistant closed cell foam.
13. The wall assembly of claim 1, wherein the framing accessory is installed at a head of wall joint such that the seal prevents a spread of smoke at the head of wall joint.
14. The wall assembly of claim 1, wherein the framing accessory is installed at a head of wall joint such that the seal reduces an amount of sound that passes through the head of wall joint.
15. The wall assembly of claim 1, further comprising a header track comprising a flange and the flange comprises an outer surface, wherein the strip comprises an upper surface, a bottom surface opposite the upper surface of the strip, an interior side surface that extends between the bottom surface of the strip and the upper surface of the strip, and an outer side surface opposite the interior side surface of the strip, wherein the interior side surface of the strip faces the outer surface of the flange and the interior side surface of the strip is laterally spaced apart from the outer surface of the flange.
16. A wall assembly comprising: (a) a horizontal support structure comprising a lower surface;(b) a wallboard panel comprising a width, a top edge and an outer vertical surface, wherein the wallboard panel is positioned such that there is a gap between the top edge of the wallboard panel and the lower surface of the horizontal support structure, wherein the gap comprises a gap width that is equal to the width of the wallboard panel; and(c) a framing accessory comprising (i) a first leg,(ii) a second leg oriented substantially perpendicular relative to the first leg, and(iii) a strip comprising an upper surface, a bottom surface opposite the upper surface of the strip, an interior side surface that extends between the bottom surface of the strip and the upper surface of the strip, and an outer side surface opposite the interior side surface of the strip, wherein the bottom surface extends from the interior side surface to the outer side surface, wherein the entire bottom surface is attached to the first leg, wherein the strip comprises a material selected from the group consisting of open cell foam and closed cell foam,wherein the framing accessory is positioned within the wall assembly such that the first leg is vertically spaced apart from the lower surface of the horizontal support structure resulting in a portion of the gap extending from an exterior surface of the first leg to the lower surface of the horizontal support structure, the portion of the gap extending from the exterior surface of the first leg to the lower surface of the horizontal support structure is substantially filled by the strip, the strip contacts the lower surface of the horizontal support structure thereby creating a seal between the strip and the horizontal support structure, and the second leg of the framing accessory is positioned along the outer vertical surface of the wallboard panel.
17. The wall assembly of claim 16, wherein the strip comprises a material selected from the group consisting of fire resistant open cell foam and fire resistant closed cell foam.
18. The wall assembly of claim 16, wherein the flange of the header track comprises an outer surface, wherein the interior side surface of the strip faces the outer surface of the flange, wherein the interior side surface of the strip is laterally spaced apart from the outer surface of the flange.
19. A wall assembly comprising: (a) a horizontal support structure comprising a lower surface;(b) a wallboard panel comprising a width, a top edge and an outer vertical surface, wherein the wallboard panel is positioned such that there is a gap between the top edge of the wallboard panel and the lower surface of the horizontal support structure, wherein the gap comprises a gap width that is equal to the width of the wallboard panel; and(c) a framing accessory comprising (i) a first leg,(ii) a second leg oriented substantially perpendicular relative to the first leg, and(iii) a strip attached to the first leg, wherein the strip comprises an upper surface, a bottom surface opposite the upper surface of the strip, an interior side surface that extends between the bottom surface of the strip and the upper surface of the strip, and an outer side surface opposite the interior side surface of the strip, wherein the bottom surface extends from the interior side surface to the outer side surface, wherein the strip comprises a material selected from the group consisting of open cell foam and closed cell foam,wherein the framing accessory is positioned within the wall assembly such that the first leg is vertically spaced apart from the lower surface of the horizontal support structure resulting in a portion of the gap extending from an exterior surface of the first leg to the lower surface of the horizontal support structure, the portion of the gap extending from the exterior surface of the first leg to the lower surface of the horizontal support structure is substantially filled by the strip, the strip contacts the lower surface of the horizontal support structure thereby creating a seal between the strip and the horizontal support structure, and the second leg of the framing accessory is positioned along the outer vertical surface of the wallboard panel.
20. The wall assembly of claim 19, wherein the strip comprises a material selected from the group consisting of fire resistant open cell foam and fire resistant closed cell foam.
21. The wall assembly of claim 19, wherein the flange of the header track comprises an outer surface, wherein the interior side surface of the strip faces the outer surface of the flange, wherein the interior side surface of the strip is laterally spaced apart from the outer surface of the flange.

PRIORITY

This application is a continuation of U.S. Nonprovisional Patent Application Ser. No. 17/943,352, filed Sep. 13, 2022, entitled “FINISHING ACCESSORY WITH BACKING STRIP,” and published as U.S. 2023-0003036 on Jan. 5, 2023, which is a continuation of U.S. Nonprovisional Patent Application Ser. No. 15/848,068, filed Dec. 20, 2017, entitled “FINISHING ACCESSORY WITH BACKING STRIP,” and issued as U.S. Pat. No. 11,486,150 on Nov. 1, 2022, which claims priority to U.S. Provisional Patent Application Ser. No. 62/436,937, filed Dec. 20, 2016, entitled “FINISHING ACCESSORY WITH FIRE RESISTANT STRIP,” and to U.S. Provisional Patent Application Ser. No. 62/509,400, filed May 22, 2017, entitled “FINISHING ACCESSORY WITH BACKING STRIP,” the disclosures of which are incorporated by reference herein.

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Related Publications (1)

	Number	Date	Country
	20230332418 A1	Oct 2023	US

Provisional Applications (2)

	Number	Date	Country
	62509400	May 2017	US
	62436937	Dec 2016	US

Continuations (2)

	Number	Date	Country
Parent	17943352	Sep 2022	US
Child	18215340		US
Parent	15848068	Dec 2017	US
Child	17943352		US

Finishing accessory with backing strip

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