US3922822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing assembly of flexible material
Assignee: Individual
•
Filing: 1974-08-02
•
Granted: 1975-12-02
•
Expires: 1994-08-02
Abstract
Abstract A roofing assembly made of flexible material and having roof membranes that can be rolled up into individual rolls and constructed of tear and weather resistant plastics or the like materials. The membranes may consist of several sandwich layers of plastic and are connected to the roof structure by carrying elements. Band-like carriers, such as flat bars, constructed of high strength steel, span at least across the carrying elements of the roof structure to support the membranes.
Inventors
- 👤 Sebastian Mollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:32
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/02; E04H15/04; E04H15/32; E04H15/54
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
A roofing assembly comprising a substantially rectangular roof membrane made of one or more layers of flexible material, said membrane being superimposed on spaced apart load transfer members having a flat support surface connected to said membrane, said load transfer members being superimposed on and connected to a respective flexible load carrying tension member, said tension members being connected at their ends to a respective roof supporting main cable, said load transfer members and tension members extending transversely to the longitudinal axis of said membrane and between adjacent main cables.
Claim 2
Dependent Claim
90 words
A roofing assembly comprising a substantially rectangular roof membrane made of one or more layers of flexible material, said membrane being superimposed on spaced apart load transfer members having a flat support surface connected to said membrane, said load transfer members being superimposed on and connected to a respective flexible load carrying tension member, said tension members being connected at their ends to a respective roof supporting main cable, said load transfer members and tension members extending transversely to the longitudinal axis of said membrane and between adjacent main cables.
Claim 3
Dependent Claim
25 words
A roofing assembly as claimed in claim 1 characterized in that tensile reinforcements extend across said tension members preferably at right angles and connected thereto.
Claim 4
Dependent Claim
28 words
A roofing assembly as claimed in claim 1 characterized in that the underside of the load transfer members is provided with a recess to receive said tension members.
Claim 5
Dependent Claim
43 words
A roofing assembly as claimed in claim 1 characterized in that the membrane is constructed from several layers, at least one layer being a weather-resistant exterior layer and one being a supporting interior layer, said layers connected to each other by spacing elements.
Claim 6
Dependent Claim
19 words
A roofing assembly as claimed in claim 4, characterized in that said spacing elements form a continuous insulating layer.
Claim 7
Dependent Claim
17 words
A roofing assembly as claimed in claim 1 wherein said load carrying tension members are flat bars.
Claim 8
Dependent Claim
29 words
A roofing assembly as claimed in claim 4 characterized in that said insulating layer is in the form of strip-like elements, and translucent exterior and interior layers are used.
Claim 9
Dependent Claim
37 words
A roofing assembly as claimed in claim 7, characterized in that said exterior and interior layers are transparent, and said interior layer being perforated in an area between said strip-like elements where the insulating layer is omitted.
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |