US3843238A
Expired / Lapsed
US
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Reflector
Assignee: Westinghouse Electric Corp
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Filing: 1972-09-27
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Granted: 1974-10-22
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Expires: 1992-09-27
Abstract
Abstract Described is a thin membranous reflector adapter by a curvilinear array of reinforcing edge support cables around its perimeter for stretched-flat tension-spring support at discrete coplanar apex locations spaced apart about such perimeter.
Inventors
- 👤 N Williams
- 👤 A Simon
- 👤 F Rushing
- 👤 L Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:24
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; F; F24; F24S; F24S23/00; F24S23/70; F24S23/81; A; A63; A63B; A63B21/00; A63B21/02; A63B21/023; Y; Y02; Y02E; Y02E10/00; Y02E10/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
27 words
A reflector comprising, a flexible reflector membrane having a perimeter defined by a continuous series of tension-reinforced concave edge regions which meet at spaced-apart apices support points.
Claim 2
Dependent Claim
27 words
A reflector comprising, a flexible reflector membrane having a perimeter defined by a continuous series of tension-reinforced concave edge regions which meet at spaced-apart apices support points.
Claim 3
Dependent Claim
53 words
A reflector assembly consisting of a sheet-like array of reflector modules each of which comprises, a flexible reflector membrane having a continuous series of tension-reinforced concave edge regions defining its perimeter which meet at spaced-apart apices, and, in which, thE apices of adjacent reflector modules are joined together to transmit pulling forces therebetween.
Claim 4
Dependent Claim
53 words
A reflector assembly consisting of a sheet-like array of reflector modules each of which comprises, a flexible reflector membrane having a continuous series of tension-reinforced concave edge regions defining its perimeter which meet at spaced-apart apices, and, in which, thE apices of adjacent reflector modules are joined together to transmit pulling forces therebetween.
Claim 5
Dependent Claim
27 words
The reflector assembly of claim 2, wherein compression members extend between at least certain of said apices to maintain respective membrane edge regions in a prestretched state.
Claim 6
Dependent Claim
21 words
The reflector of claim 3, wherein, a number of such compression members extend in continuous series and are interconnected by hinges.
Claim 7
Dependent Claim
33 words
The reflector of claim 4, wherein, two such hinge-interconnected series of compression members are included which extend in mutually perpendicular directions when the array of reflector modules is in its erected drawn-flat state.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |