Patent US4672785A successfully refreshed from Google Patents.
US4672785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified runner and area separation wall structure utilizing runner
Assignee: United States Gypsum Co
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Filing: 1986-07-17
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Granted: 1987-06-16
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Expires: 2006-07-17
Abstract
Abstract An integral generally channel-form runner for securing and supporting one or more wallboard panels in a demountable structure, the runner having an integral support for the lower edges of the wallboard panels in a position spaced above the bottom of the runner to prevent absorption of water and formation of mildew at the edges of the wallboard panels.
Inventors
- 👤 E. Vincent Salvo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:25
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/825
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
167 words
An integral substantially U-shaped runner for supporting a pair of panels in face-to-face engagement positioned therein, comprising: (a) a web, (b) a pair of flanges extending perpendicularly one from each edge of said web and defining a channel therewith, (c) portions of said web being struck therefrom to provide rigid tabs displaced inwardly into said channel transversely to the longitudinal direction thereof, said inwardly displaced tabs struck from said web each comprising an upwardly directed tab member and a downwardly directed tab member connected together at a crease and being mutually integral, said tab members cooperating to define inverted-V shaped tabs, the crease connecting said tab members adapted rigidly to support the lower edges of said wallboard panels, whereby, when said panels are inserted into said runner, the creases connecting said tab members rigidly support the lower edges of both said panels elevated at a distance above said web sufficient to prevent water which may be present in said channel from contacting the edges of said panels.
Claim 2
Dependent Claim
167 words
An integral substantially U-shaped runner for supporting a pair of panels in face-to-face engagement positioned therein, comprising: (a) a web, (b) a pair of flanges extending perpendicularly one from each edge of said web and defining a channel therewith, (c) portions of said web being struck therefrom to provide rigid tabs displaced inwardly into said channel transversely to the longitudinal direction thereof, said inwardly displaced tabs struck from said web each comprising an upwardly directed tab member and a downwardly directed tab member connected together at a crease and being mutually integral, said tab members cooperating to define inverted-V shaped tabs, the crease connecting said tab members adapted rigidly to support the lower edges of said wallboard panels, whereby, when said panels are inserted into said runner, the creases connecting said tab members rigidly support the lower edges of both said panels elevated at a distance above said web sufficient to prevent water which may be present in said channel from contacting the edges of said panels.
Claim 3
Dependent Claim
112 words
A wall structure comprising in combination: an integral substantially U-shaped runner comprising: (a) a web, (b) a pair of flanges extending perpendicularly one from each edge of said web and defining a channel therewith, (c) portions of said web being struck inwardly into said channel to provide rigid tabs transversely oriented with respect to the longitudinal direction thereof, and (d) a pair of wallboard panels arranged in face-to-face engagement having their lower edges disposed in said channel and supported by the edges of said tabs at an elevation above the web of said runner sufficient to prevent water which may be present in said channel from contacting the edges of said panels.
Claim 4
Dependent Claim
112 words
A wall structure comprising in combination: an integral substantially U-shaped runner comprising: (a) a web, (b) a pair of flanges extending perpendicularly one from each edge of said web and defining a channel therewith, (c) portions of said web being struck inwardly into said channel to provide rigid tabs transversely oriented with respect to the longitudinal direction thereof, and (d) a pair of wallboard panels arranged in face-to-face engagement having their lower edges disposed in said channel and supported by the edges of said tabs at an elevation above the web of said runner sufficient to prevent water which may be present in said channel from contacting the edges of said panels.
Claim 5
Dependent Claim
20 words
A wall structure according to claim 2, wherein said inwardly displaced tabs struck from said web are substantially perpendicular thereto.
Claim 6
Dependent Claim
27 words
A wall structure according to claim 2, wherein the edges of said tabs are spaced apart from said flanges to permit a structure to be inserted therebetween.
Claim 7
Dependent Claim
57 words
A wall structure according to claim 2, wherein said inwardly displaced tabs struck from said web each comprise an upwardly directed tab member and a downwardly directed tab member integral therewith, said tab members cooperating to define inverted-V shaped tabs, the crease connecting said tab members adapted rigidly to support the lower edge of said wallboard panel.
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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) | 1990-06-15 | 1990-12-15 | 1991-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-15 | 1994-12-15 | 1995-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-15 | 1998-12-15 | 1999-06-16 | $7700.00 | Window Closed / Lapsed |