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Gusseted and Recessed-Leg Area Corner Caps

Inactive Publication Date: 2011-07-07
BULLIS SEAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In general, the invention provides a new and improved corner cap featuring three legs joined at a central corner region, with each leg having an arcuate r

Problems solved by technology

While such systems may be suitable for their intended purpose, they also can suffer from some disadvantages.
Metal strip surfaces are prone to damage (e.g., deformations, such as kinks or dents) that typically results in the strip having to be replaced or restored, which can be unnecessarily expense and time consuming.
Moreover, depending upon the workmanship of the contractor, the trueness and alignment of the intersecting wallboard, and manner in which the strip is interconnected or attached to corner cap, the strip and corner cap may not have an ideal fit.
Furthermore, problems with the fit between a strip and corner cap can be exacerbated by having a relatively small and thin area (such as a small “tongue” projecting out from the end of a corner cap leg and) with which a strip must be aligned or joined.

Method used

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  • Gusseted and Recessed-Leg Area Corner Caps
  • Gusseted and Recessed-Leg Area Corner Caps
  • Gusseted and Recessed-Leg Area Corner Caps

Examples

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second embodiment

Turning to the invention, a three-way corner cap having a 135° angle (rather than three 90° legs as shown above) is illustrated in FIGS. 3 and 4. This corner cap 20 includes one leg 22 with a recessed area 24 and two other legs 26 that meet at a central corner region 28. Extending from the side edges 30 of the legs 22 and 26 are planer gussets 32. As illustrated, two of gussets 34 have a width W3 that are wider than width W4 of legs 26.

The corner cap 38 shown in FIGS. 5 and 6 preferably is formed from a single piece of plastic and includes three perpendicular legs 40 joined together in a central corner region 42. Each leg includes a central, arcuate region 44 extending along the length of the leg 40 and a planar gusset 46 projecting outwardly from each side edge 48 of the arcuate region 44. In this embodiment, each planer gusset 46 defines a triangular area 50, which, in some applications, has been found to provide better cohesion between the corner cap 38 and abutting strips (see F...

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PUM

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Abstract

A three-way corner cap having three legs joined to a central corner region. Each leg includes an arcuate region extending along the length of the leg and a planar gusset projecting outwardly from and connecting each side edge of the arcuate region, with at least one leg also including a recessed area integral with the gusset along each side edge.

Description

BACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates generally to devices used in wall board joint and corner finishing, and, more particularly, to corner caps that feature gussets and / or recessed areas that provide desirable durability and installation properties.2. Description of the Related ArtPlastic corner pieces and strips of plastic or metal are commonly used by residential and commercial builders to finish corners at intersections of wallboard (drywall such as Sheetrock™, gypsum board, etc.), especially when a “rounded corner” appearance is desired.Many wall edging and corner finishing systems involve the use of a corner cap in combination with flanged metal or plastic strips which act as a corner bead. For example, the flanges of a strip are nailed to adjacent drywall on an “outside corner” (defined by the obtuse intersection of two wallboard planes) and interconnected with (or adhered to) a corner cap. The combination of the strips and corner cap woul...

Claims

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Application Information

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IPC IPC(8): E04F13/073
CPCE04F19/028E04F13/06
Inventor BULLIS, SEANCHRISTENSEN, DOUG A.
Owner BULLIS SEAN