The field of the present invention is that of connectors that juxtapose adjoining edges of tapered drywall.
Methods of providing a continuous surface between the edges of tapered drywall can be found in a review of the documents “Manufactured Housing Handbook” by US Gypsum Company 1998, and “Application, and Finishing of Gypsum Panel Products” by Gypsum Association 2004.
The present invention provides a revelation of an alternative apparatus and method of providing a flat continuous surface between the edges of tapered drywall to those apparatus and methods revealed previously.
Referring to
The connector 7 has a base 10. The base 10 has a tapered edge 16 to allow the drywall 14 to be loaded in from the side without excessive interference with an edge of a backing paper (not shown) of the drywall 14. The base 10 servers as a support for a rear surface 12 of the drywall 14. The base 10 usually extends along a major axis parallel or perpendicular to a structural member to which the drywall 14 is being connected. The structural member can be concrete, metal or a wood structural member that is often a 2×4 stud or joist. Some applications may have a metal support. Most stick built homes will utilize a 2×4 in. wooden stud or joist.
If the main axis of the support structure (not shown) is transverse to the base 10 and if it is desired that the rear surface 12 of the drywall be flush with the support structure, a small portion of the base 10 can be cut out to allow the support structure to be flush with the rear surface 12 of the drywall 14.
A front surface 20 of the base 10 can have a pre-applied layer of adhesive to help seal the rear surface 12 of the drywall. The adhesive on the base front surface 20 can be covered by a peal off strip. The base 10 can connect a support member with an adhesive that may be calked or sprayed. The base 10 can also be applied by the use of fasteners in a manner described hereinbelow.
Projecting forward from the base 10 in a generally perpendicular manner is a unitary integral column 22. The column 22 extends a distance 24 that is less than a thickness of the drywall 26 at its untapered portion (approximately 2-3inches from a lateral edge 30 of the drywall). The column sidewalls 28 are usually abutted by a generally forward projecting (or vertical as shown in
The column 22 has generally perpendicularly extending there from two mud legs 36. The mud legs 36, column 22, and base 10 form a pocket for receipt of the tapered edge drywall 14. The mud legs 36 have a generally flat front surface 38 that is lower (rearward) than a front surface 40 of an untapered portion of the drywall 14. When the connector 7 receives the tapered edges of the drywall, the length of the column 22 from the base 10 to the mud leg's surface 38 is less than the predefined untapered thickness of the drywall 14. The mud legs 36 have an inner thickness 42 generally adjacent the column 22 that tapers away from the base 10 to an outer thickness 44. The rear surface 46 of the mud legs is positioned in close proximity to a tapered portion 48 of the drywall lateral edge 30 and extends outwardly from the base 10 from a length 41 to a greater length 43. Preferably, the rear surface 46 is angled sufficiently to have a slightly increasing interference with the tapered portion 48 as the mud legs 36 extend outwardly from the column 22. Tapered portions 48 of abutting edges of the drywall 14 form a valley. The valley is filled with a plaster often referred to as joint compound or mud.
The mud legs 36 thickness 42 is typically significantly less than the thickness 34 of the base 10. Typical ranges are 14% to 40% less in thickness. Therefore, in most applications, deformation will occur in the mud legs 36 before it will occur in the base 10. The mud legs 36 typically will have a thickness 42 less than that of the column 22.
Prior to the present invention, a tape netting (joint tape) was applied over the abutting edges of the drywall. This tape was filled with the mud typically requiring three to four applications of mud until a front surface of the mud was flush with the adjoining front surfaces of the drywall concealing the “gap or joint” of the drywall assembly. The present invention connector 7 eliminates the need for the tape and additionally cuts back on the coats of mud needed to one or two.
The mud legs 36 have a series of apertures 50 to facilitate bonding with the mud 52. The mud leg front surface 38 can have knurls, grooves or other surface treatments to texture the same to facilitate mud adhesion. Additionally, a matting agent can be added to the mixture of the connector material to aid adhesion of the mud 52.
Referring to
In mobile homes ceiling applications, the ceiling is often built by laying the drywall on the floor with the face (front) side down. The overhead roof framing structure is completed on top of the drywall and is glued thereto. The completed roof structure is then lifted into place on top of the parallel spaced walls of the home. To ensure the presence of a valley between the abutting edges of the drywall, a plate is placed down on the floor to push up the connector mud legs 36. The connector 17 of
Connector 37 shown in
The base 110 also has optional cure apertures 116 to increase contacting surface area of any adhesive and to aid in providing more atmospheric exposure for adhesive cure. The base 110 also has longitudinal grooves 118 to allow an extreme lateral edge of the base to be bent over for further attachment to a sidewall 120 of the joist 114 by fasteners or adhesives.
Connector 57 of
Connector 67 of
Referring to
Connector 87 (
The connector 87 optionally can have positioning mounds 332 on a surface adjacent a structural member (not shown). The positioning mounds 332 are provided to prevent contacts between a structural member and the base 328 in a region 334.
Connector 97 (
A construction assembly 307 using the connector 57 is shown in
While preferred embodiments of the present invention have been disclosed, it is to be understood the present invention is described herein by way of example only, and various modifications can be made without departing from the spirit and scope of the invention as it is encompassed in the following claims.
The present invention claims the benefit of U.S. Provisional Patent Application “Connector and System For Connecting Tapered Drywall To a Structure U.S. Ser. No. 60/736822” filed Nov 15, 2005.
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Entry |
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“Manufactured Housing Handbook” MH1216/REV8-98 US Gypsum Company 1998 Chicago IL. |
“Application and Finishing of Gypsum Panel Products” GA-216-2004 Gypsum Association 2004 Washington D.C. |
Number | Date | Country | |
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20070107348 A1 | May 2007 | US |
Number | Date | Country | |
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60736822 | Nov 2005 | US |