US3797192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid ceiling
Assignee: JONGE M DE
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Filing: 1972-03-09
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Granted: 1974-03-19
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Expires: 1992-03-09
Abstract
Abstract A grid ceiling comprising section beams and grids having relatively small dimensions with regard to the dimensions of said grid ceiling, said grids being supported by said section beams which extend in longitudinal and transverse direction and are arranged staggered relative to one another and are suspended in their centre to a stationary support, the section beams which are arranged in one direction having ends supported by beams which are arranged in the other direction and vice versa.
Inventors
- 👤 Jonge M De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:26
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/34; E04B9/06; E04B9/12; E04B9/127; E04B9/345
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
179 words
A grid ceiling comprising a plurality of grids arranged in parallel rows and having substantially channel-shaped U-beams extending in longitudinal and transverse direction of the ceiling, each U-beam having a length substantially equal to the length of two grid sides supported thereby, characterized in that said channel-shaped beams are arranged in staggered relation to one another, the ends of said channel-shaped beams extending in one direction being supported in the center of said beams extending in the other direction and vice versa, suspension means being provided for suspending said beams extending in the other direction in their center, the legs of said U-beams being provided with slots arranged substantially in their center and in their end portions gripping into slots on said beams lying crosswise thereto, each of the legs of said channel beams being provided with a hole lying substantially in its center, the suspension means being provided with at least a resilient means passing through said holes, the ends of said resilient means lying against the bottoms of the ends of the beams supported by said beam.
Claim 2
Dependent Claim
179 words
A grid ceiling comprising a plurality of grids arranged in parallel rows and having substantially channel-shaped U-beams extending in longitudinal and transverse direction of the ceiling, each U-beam having a length substantially equal to the length of two grid sides supported thereby, characterized in that said channel-shaped beams are arranged in staggered relation to one another, the ends of said channel-shaped beams extending in one direction being supported in the center of said beams extending in the other direction and vice versa, suspension means being provided for suspending said beams extending in the other direction in their center, the legs of said U-beams being provided with slots arranged substantially in their center and in their end portions gripping into slots on said beams lying crosswise thereto, each of the legs of said channel beams being provided with a hole lying substantially in its center, the suspension means being provided with at least a resilient means passing through said holes, the ends of said resilient means lying against the bottoms of the ends of the beams supported by said beam.
Claim 3
Dependent Claim
200 words
A grid ceiling comprising a plurality of grids arranged in parallel rows and having substantially channel-shaped U-beams extending in longitudinal and transverse direction of the ceiling, each U-beam having a length substantially equal to the length of two grid sides supported thereby, characterized in that said channel-shaped beams are arranged in staggered relation to one another, the ends of said channel-shaped beams extending in one direction being supported in the center of said beams extending in the other direction and vice versa, suspension means being provided for suspending said beams extending in the other direction in their center, the legs of said U-beams being provided with slots arranged substantially in their center and in their end portions gripping into slots on said beams lying cross-wise thereto, each of the legs of the substantially U-beams including a hole, a pin for a suspension device being passed through said holes, said pin projecting on either side beyond said U-beams, a curved leaf spring comprising a hole engaging each of said projecting pin ends, the lower end of each of said springs abutting with tension against the inner side of the ends of the U-beams which extend transversely to said first mentioned U-beams.
Claim 4
Dependent Claim
200 words
A grid ceiling comprising a plurality of grids arranged in parallel rows and having substantially channel-shaped U-beams extending in longitudinal and transverse direction of the ceiling, each U-beam having a length substantially equal to the length of two grid sides supported thereby, characterized in that said channel-shaped beams are arranged in staggered relation to one another, the ends of said channel-shaped beams extending in one direction being supported in the center of said beams extending in the other direction and vice versa, suspension means being provided for suspending said beams extending in the other direction in their center, the legs of said U-beams being provided with slots arranged substantially in their center and in their end portions gripping into slots on said beams lying cross-wise thereto, each of the legs of the substantially U-beams including a hole, a pin for a suspension device being passed through said holes, said pin projecting on either side beyond said U-beams, a curved leaf spring comprising a hole engaging each of said projecting pin ends, the lower end of each of said springs abutting with tension against the inner side of the ends of the U-beams which extend transversely to said first mentioned U-beams.
Claim 5
Dependent Claim
31 words
A grid ceiling according to claim 2, further characterized by the ends of said transversely extending U-beams being provided with tongues gripping into slots provided in the legs of the U-beams.
Claim 6
Dependent Claim
26 words
A grid ceiling according to claim 2, further characterized by the ends of the pin including abutment means for the leaf springs cooperating with said pin.
Claim 7
Dependent Claim
31 words
A grid ceiling according to claim 2, further characterized by the ends of said transversely extending U-beams being provided with tongues gripping into slots provided in the legs of the U-beams.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |