US4443991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable partition structure
Assignee: Donn Inc
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Filing: 1980-10-09
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Granted: 1984-04-24
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Expires: 2000-10-09
Abstract
Abstract A demountable wall system is disclosed providing metal studs adapted to be positioned along the joints between adjacent wall panels. The studs provide outer flanges which are positioned in kerfs along the edges of the panels and inner flanges which engage the inner surface of the panels. A U-shaped web system connects the inner flanges and is structured with the legs of the U-shaped web spaced from the adjacent flanges except at their extremities so that the legs cushion vibration or sound to minimize their transmission through the stud between the two sides of the wall. The inner flanges have a width exceeding twice the depth of the kerfs so that they engage panels beyond the kerf-weakened edges thereof.
Inventors
- 👤 David F. Mieyal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:50
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7453; E04B2/7457; E04B2/76; E04B2/78; E04B2/7854; E04B2/7863; E04B2/82; E04B2/825
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
377 words
A stud for walls including a pair of spaced rows of panels, said stud comprising a single piece of sheet metal that provide a central web and panel engaging and suporting portions along each edge of said web, said piece of sheet metal being shaped so that said panel engaging and supporting portions each includes; a first leg joined at one edge to one edge of said web and extending at a substantial angle therefrom to a reverse bend, a first flange portion extending from said reverse bend of said leg along a first plane forming a substantial angle to said web to its opposite edge, a shallow offset along the edge of said first flange portion opposite said first reverse bend extending inwardly of said stud, a second leg extending from said offset at a location spaced back from said first plane to a second reverse bend, a second flange portion extending from said second reverse bend along said first plane to a substantially right angle bend substantially adjacent to said offset, a flange joining portion extending from said first substantially right angle bend in a direction outwardly of said stud to a second substantially right angle bend, a third flange portion extending from said second right angle bend to a third reverse bend along a second plane spaced from and substantially parallel to said first plane, and a fourth flange portion extending from said third reverse bend past said second substantially right angle bend to an opposite edge, each of said first and second flanges being engageable with the inner surface of an associated pair of substantially abutting panels adjacent to their edges, said third and fourth flange portions being engageable with opposed surfaces of said pair of panels adjacent to their edges and being operable to maintain said inner surfaces against said first and second flanges, each first flange portion and its associated offset being spaced from said web and from said first leg except at said first bend whereby said leg provides a resilient connection between said flange portions and said web to resist transmission of vibration through said stud between said pair of spaced row of panels, said first and second flange portions extending laterally beyond said third and fourth flange portions.
Claim 2
Dependent Claim
377 words
A stud for walls including a pair of spaced rows of panels, said stud comprising a single piece of sheet metal that provide a central web and panel engaging and suporting portions along each edge of said web, said piece of sheet metal being shaped so that said panel engaging and supporting portions each includes; a first leg joined at one edge to one edge of said web and extending at a substantial angle therefrom to a reverse bend, a first flange portion extending from said reverse bend of said leg along a first plane forming a substantial angle to said web to its opposite edge, a shallow offset along the edge of said first flange portion opposite said first reverse bend extending inwardly of said stud, a second leg extending from said offset at a location spaced back from said first plane to a second reverse bend, a second flange portion extending from said second reverse bend along said first plane to a substantially right angle bend substantially adjacent to said offset, a flange joining portion extending from said first substantially right angle bend in a direction outwardly of said stud to a second substantially right angle bend, a third flange portion extending from said second right angle bend to a third reverse bend along a second plane spaced from and substantially parallel to said first plane, and a fourth flange portion extending from said third reverse bend past said second substantially right angle bend to an opposite edge, each of said first and second flanges being engageable with the inner surface of an associated pair of substantially abutting panels adjacent to their edges, said third and fourth flange portions being engageable with opposed surfaces of said pair of panels adjacent to their edges and being operable to maintain said inner surfaces against said first and second flanges, each first flange portion and its associated offset being spaced from said web and from said first leg except at said first bend whereby said leg provides a resilient connection between said flange portions and said web to resist transmission of vibration through said stud between said pair of spaced row of panels, said first and second flange portions extending laterally beyond said third and fourth flange portions.
Claim 3
Dependent Claim
35 words
A stud as set forth in claim 1, wherein a fourth reverse bend is formed along said opposite edge of said fourth flange portion to provide said fourth flange portion with a double metal thickness.
Claim 4
Dependent Claim
55 words
A stud as set forth in claim 1, in combination with a plurality of panels cooperating to provide two spaced rows of panels in which each row includes a pair of aligned panels substantially abutting along adjacent edges, said panels engaging and being supported by said panel engaging and panel supporting portions of said stud.
Claim 5
Dependent Claim
43 words
A stud and panel combination as set forth in claims 3, wherein said panels are formed with kerfs along their edges spaced from both the inner and outer surfaces of said panels, and said third and fourth flange portions extend into said kerfs.
Claim 6
Dependent Claim
18 words
A stud as set forth in claim 1, wherein said legs extend substantially perpendicular to said central web.
Claim 7
Dependent Claim
24 words
A stud as set forth in claim 1, wherein said web extends along a third plane substantially perpendicular to said first and second planes.
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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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |