Patent US4008708A successfully refreshed from Google Patents.
US4008708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy collector
Assignee: Dow Silicones Corp
•
Filing: 1975-09-29
•
Granted: 1977-02-22
•
Expires: 1995-09-29
Abstract
Abstract A solar energy collector is made up of a plurality of flexible sheets separated by a plurality of extruded flexible spacer members adhered to the sheets in parallel spaced relationship forming channels between the spacer members. The bottom sheet or middle sheet is light absorbing while the top sheet or sheets are light transmitting and all of the sheets and spacer members are desirably formed of silicone rubber or resin, the sheets being reinforced with glass fiber mesh if desired.
Inventors
- 👤 Robert W. Hagarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:51
CPC Classifications
F; F24; F24S; F24S20/00; F24S20/50; F24S20/55; B; B32; B32B; B32B25/00; B32B25/04; B32B25/042; B32B25/08; B32B25/20; B32B3/00; B32B3/10; B32B3/18; B32B3/20; F24S10/00; F24S10/50; F24S70/00; F24S70/20; F24S70/275; B32B2262/00; B32B2262/10; B32B2262/101; F24S80/00; F24S80/50; F24S2080/501; F24S2080/502; F28; F28F; F28F2240/00; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A solar energy collector comprising a first sheet of flexible material, a plurality of extruded flexible spacer members adhered to the bottom of said first sheet in substantially parallel spaced relationship, and a second sheet of flexible material adhered to the bottoms of said spacer members, whereby said spacer members and said sheets define a plurality of parallel fluid paths for passage of heat absorbing fluid therethrough to transmit heat from said collector; and further comprising a second plurality of extruded flexible spacer members adhered to the top of said first sheet in substantially parallel spaced relationship, and a third sheet of solar energy transmitting material adhered to the tops of said second plurality of spacer members.
Claim 2
Dependent Claim
117 words
A solar energy collector comprising a first sheet of flexible material, a plurality of extruded flexible spacer members adhered to the bottom of said first sheet in substantially parallel spaced relationship, and a second sheet of flexible material adhered to the bottoms of said spacer members, whereby said spacer members and said sheets define a plurality of parallel fluid paths for passage of heat absorbing fluid therethrough to transmit heat from said collector; and further comprising a second plurality of extruded flexible spacer members adhered to the top of said first sheet in substantially parallel spaced relationship, and a third sheet of solar energy transmitting material adhered to the tops of said second plurality of spacer members.
Claim 3
Dependent Claim
24 words
A solar energy collector as defined in claim 1 wherein said third sheet and said second plurality of spacer members comprise transparent silicone rubber.
Claim 4
Dependent Claim
21 words
A solar energy collector as defined in claim 2 wherein said third sheet is reinforced with a mesh of glass fibers.
Claim 5
Dependent Claim
17 words
A solar energy collector as defined in claim 1 wherein said spacer members are hollow tubular members.
References Cited (Backward Citations)
GB325928A
Cited
US3076450A
Cited
US3200820A
Cited
US3859980A
Cited
US3943911A
Cited
US3918430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |