US3866376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal clad gypsum walls
Assignee: United States Gypsum Co
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Filing: 1972-10-05
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Granted: 1975-02-18
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Expires: 1992-10-05
Abstract
Abstract A demountable wall assembly comprising two rows of panels having metal sheets adhered to the faces thereof, and characterized by the vertical edges of the sheet extending across the space between the rows to support the panels without the need for separate studs.
Inventors
- 👤 Nels Nelsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:07
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; E04B; E04B2/00; E04B2/74; E04B2/7401
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
172 words
In a demountable hollow wall assembly including two opposed, parallely extending, spaced-apart rows of panels, each row assembled independently of the other, the panels of at least one of the rows each being provided with a core having a front surface and a back surface, and a metal sheet adhered to the front surface; the improvement wherein said sheet includes an edge portion integral with said sheet along a vertical margin of said sheet which depends out of the plane of said sheet along the edge of said core and extends inwardly of said wall to a point beyond the bacK surface of the panel it covers, said edge portion being in releasible contact engagement with the back surface of a panel of the opposite row, and runner means at both the upper and lower ends of said panels providing lateral restraint for maintaining the inner walls of said panels in engagement with edge portions of opposite panels, whereby said panels are supported in spaced-apart position in the absence of separate studs.
Claim 2
Dependent Claim
172 words
In a demountable hollow wall assembly including two opposed, parallely extending, spaced-apart rows of panels, each row assembled independently of the other, the panels of at least one of the rows each being provided with a core having a front surface and a back surface, and a metal sheet adhered to the front surface; the improvement wherein said sheet includes an edge portion integral with said sheet along a vertical margin of said sheet which depends out of the plane of said sheet along the edge of said core and extends inwardly of said wall to a point beyond the bacK surface of the panel it covers, said edge portion being in releasible contact engagement with the back surface of a panel of the opposite row, and runner means at both the upper and lower ends of said panels providing lateral restraint for maintaining the inner walls of said panels in engagement with edge portions of opposite panels, whereby said panels are supported in spaced-apart position in the absence of separate studs.
Claim 3
Dependent Claim
35 words
The assembly as defined in claim 1, wherein the portion of said vertical edge in abutment with the back face of the opposite row includes a flange extending generally parallel to the abutted back face.
Claim 4
Dependent Claim
38 words
The assembly as defined in claim 1, wherein one of said edge portions of each panel in one of the rows releasibly abuts against an edge portion of the sheet of the adjacent panel in said one row.
Claim 5
Dependent Claim
60 words
The assembly as defined in claim 1, wherein the panels of both of said rows are provided with said core and said metal sheet, the edge portions of all of said sheets extending inwardly of the wall beyond the back surface of the adhered core so as to releasibly contact the back surface of a panel of the opposite row.
Claim 6
Dependent Claim
29 words
The assembly as defined in claim 1, wherein said one row is the exterior wall of a building row is attached to said supporting means of said one row.
Claim 7
Dependent Claim
22 words
The assembly as defined in claim 5, and further including a layer of enamel coated over the surface of said exterior wall.
Claim 8
Dependent Claim
35 words
The assembly as defined in claim 1, and further including means on adjacent edge portions of the metal sheet of adjacent panels in one of said rows releasibly engaging one with respect to the other.
Claim 9
Dependent Claim
77 words
The assembly as defined in claim 7, wherein said engaging means includes a flange on one of said edge portions projecting from one side thereof defining a vertical socket between the flange and the edge portion opening outwardly towards the front face of said adjacent panels, and a bead terminus on the adjacent vertical edge releasibly snapped into said socket, whereby said adjacent panels may be held in a releasibly fixed relationship with respect to each other.
Claim 10
Dependent Claim
24 words
The assembly as defined by claim 8, and further including on said flange, means resisting inward movement of the bead terminus with respect thereto.
Claim 11
Dependent Claim
54 words
The assembly as defined by claim 8, wherein said flange is shaped so as to extend outwardly away from said one edge portion generally perpendicularly thereto, then so extending generally parallel to said one edge portion and outwardly towards the adjacent panel, and thence returning back towards said one edge portion, defining said socket.
Claim 12
Dependent Claim
21 words
The assembly as defined by claim 8, and further including on said flange, means guiding said bead terminus into the socket.
Claim 13
Dependent Claim
46 words
The assembly as defined by claim 11, wherein said guiding means includes a portion of said flange inclined outwardly away from said one edge portion and towards said adjacent panel so as to define, if extended, an angle with said one edge portion of about 45*.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |