Patent US3678641A successfully refreshed from Google Patents.
US3678641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling suspension system
Assignee: Novelis Corp
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Filing: 1970-09-09
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Granted: 1972-07-25
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Expires: 1990-09-09
Abstract
Abstract A ceiling suspension system comprising a plurality of stringers having panel receiving and holding slots. The stringers are supported at opposite ends by wall carried trim brackets. Closure strips may be used to close the gap between adjoining panels. Panels having in-turned edges are seated in the stringer slots. Each trim bracket has a resilient tongue in one wall thereof for receiving and holding an edge trim member. In addition, the trim brackets restrict the lateral movement of the stringer and aid in the alignment of the panels.
Inventors
- 👤 James A Englund
- 👤 Stephen Popek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:02
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/24; E04B9/26; E04B9/34; E04B9/36; E04B9/363
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
320 words
A ceiling suspension system for use in adjacent relation to a wall, comprising a. a plurality of elongated panels having inturned longitudinal edges; b. a plurality of elongated stringers each having an elongated upper base surface and a pair of side walls depending therefrom, each side wall having a plurality of downwardly opening slots with edges engageable by said inturned edges of said panels for securing said panels to said stringers; c. said stringers extending horizontally in spaced parallel relation with the slots of adjacent stringers aligned; and d. said panels extending horizontally transversely of and beneath said stringers with said inturned edges directed upwardly and engaging said stringer slot edges thereby securing said panels to said stringers as aforesaid to constitute a ceiling assembly; e. L-shaped edge trim members extending horizontally along the periphery of the ceiling assembly, each said edge trim member having a vertical flange disposed parallel to a wall and a horizontal flange formed integrally with and projecting from the lower margin of the vertical flange in underlying relation to the ceiling assembly for concealing the periphery of the ceiling assembly; f. a plurality of brackets disposed in horizontally spaced relation to each other along the periphery of the ceiling assembly, each of said brackets comprising i. a horizontal leg overlying a portion of the upper base surface of one of said stringers; ii. a vertical leg formed integrally with and projecting downwardly from said horizontal leg, said vertical leg being in fixed attachment to a wall in flush relation thereto for supporting said one stringer on the wall; and iii. a resilient tongue formed integrally with said vertical leg and having a depending free end receiving and frictionally gripping the vertical flange of said edge trim member to support said edge trim member; and g. means fixedly attaching said horizontal leg to said upper surface of said stringer for supporting said stringer by said bracket.
Claim 2
Dependent Claim
320 words
A ceiling suspension system for use in adjacent relation to a wall, comprising a. a plurality of elongated panels having inturned longitudinal edges; b. a plurality of elongated stringers each having an elongated upper base surface and a pair of side walls depending therefrom, each side wall having a plurality of downwardly opening slots with edges engageable by said inturned edges of said panels for securing said panels to said stringers; c. said stringers extending horizontally in spaced parallel relation with the slots of adjacent stringers aligned; and d. said panels extending horizontally transversely of and beneath said stringers with said inturned edges directed upwardly and engaging said stringer slot edges thereby securing said panels to said stringers as aforesaid to constitute a ceiling assembly; e. L-shaped edge trim members extending horizontally along the periphery of the ceiling assembly, each said edge trim member having a vertical flange disposed parallel to a wall and a horizontal flange formed integrally with and projecting from the lower margin of the vertical flange in underlying relation to the ceiling assembly for concealing the periphery of the ceiling assembly; f. a plurality of brackets disposed in horizontally spaced relation to each other along the periphery of the ceiling assembly, each of said brackets comprising i. a horizontal leg overlying a portion of the upper base surface of one of said stringers; ii. a vertical leg formed integrally with and projecting downwardly from said horizontal leg, said vertical leg being in fixed attachment to a wall in flush relation thereto for supporting said one stringer on the wall; and iii. a resilient tongue formed integrally with said vertical leg and having a depending free end receiving and frictionally gripping the vertical flange of said edge trim member to support said edge trim member; and g. means fixedly attaching said horizontal leg to said upper surface of said stringer for supporting said stringer by said bracket.
Claim 3
Dependent Claim
74 words
A system as defined in claim 1, wherein the horizontal leg of each of said trim brackets has a plurality of slots for receiving screws, said slots extending outwardly from said vertical leg in spaced parallel relation to each other for attachment of said bracket to said base surface by at least two screws when said bracket is oriented in either of two perpendicular directions relative to the long dimension of said base surface.
References Cited (Backward Citations)
CA635717A
Cited
US2647290A
Cited
US3035672A
Cited
US3055469A
Cited
US3295284A
Cited
US3206898A
Cited
US3228159A
Cited
US3302355A
Cited
GB1065710A
Cited
GB1141997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |