Patent US4081289A successfully refreshed from Google Patents.
US4081289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy system
Assignee: Individual
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Filing: 1975-12-24
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Granted: 1978-03-28
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Expires: 1995-12-24
Abstract
Abstract A system for extracting energy from the sun's rays including a bank of solar energy cells which generate electrical current when exposed to the rays of the sun, immersed in a bath of liquid formed to serve as a lens, concentrating the sun rays on the cells, and transmitting heat away from the cells.
Inventors
- 👤 William Patrick Campbell, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:24
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/10; H10F77/14; H10F77/147; F; F24; F24S; F24S10/00; F24S10/40; F24S23/00; F24S23/30; F24S70/00; F24S70/60; H02; H02S; H02S40/00; H02S40/40; H02S40/44; H10F77/40; H10F77/42; H10F77/484; H10F77/60; H10F77/63; H10F77/68; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y02E10/50; Y02E10/52; Y02E10/60
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
121 words
A system for extracting energy from the sun's rays comprising: a pair of spaced concentric walls defining a transparent container describing a body of revolution, the space between said walls being sealed and evacuated to reduce thermal transmission thereacross; solar cell means disposed in said container at the focal point of the body of revolution described by said container to generate an electrical current when exposed to solar radiation; liquid means filling said container for immersing and cooling said solar cell means and for focusing said solar radiation incident on said container on said solar cell means; and circulation means for transmitting cooled liquid to said container, for circulating liquid in said container, and for transmitting heated liquid from said container.
Claim 2
Independent Claim
121 words
A system for extracting energy from the sun's rays comprising: a pair of spaced concentric walls defining a transparent container describing a body of revolution, the space between said walls being sealed and evacuated to reduce thermal transmission thereacross; solar cell means disposed in said container at the focal point of the body of revolution described by said container to generate an electrical current when exposed to solar radiation; liquid means filling said container for immersing and cooling said solar cell means and for focusing said solar radiation incident on said container on said solar cell means; and circulation means for transmitting cooled liquid to said container, for circulating liquid in said container, and for transmitting heated liquid from said container.
Claim 3
Dependent Claim
23 words
The device in accordance with claim 1 wherein said body of revolution comprises a sphere and wherein said walls comprise concentric spherical walls.
Claim 4
Dependent Claim
63 words
The system in accordance with claim 1 wherein said body of revolution describes a semicylindrical housing and wherein said walls comprise a pair of semicylindrical walls, planar walls closing the ends of the semicylindrical body, said means for generating electrical current comprising the remaining wall of the semicylindrical container and insulating means behind said means to complete the insulating enclosure for said system.
Claim 5
Dependent Claim
22 words
The system in accordance with claim 1 wherein said solar cell means comprises at least one solar cell adhered to a substrate.
Claim 6
Dependent Claim
12 words
The system in accordance with claim 4 wherein said substrate is corrugated.
Claim 7
Dependent Claim
26 words
The system in accordance with claim 1 wherein said solar cell means comprises pairs of solar cells mounted in parallel, coextensive spaced relationship to one another.
Claim 8
Dependent Claim
27 words
The system in accordance with claim 6 further comprising a central outlet tube for said liquid means communicative with and extending into the interior of said container.
Claim 9
Dependent Claim
51 words
The system in accordance with claim 7 wherein said pairs of solar cells are mounted to radiate outwardly from said outlet tube and wherein said tube is substantially vertical and enters said container from the bottom such that said liquid rises as it is warmed to be transmitted from said container.
References Cited (Backward Citations)
US2402662A
Cited
US2946945A
Cited
US2989575A
Cited
US3279457A
Cited
US3866285A
Cited
US3990914A
Cited
US3988166A
Cited
US3960136A
Cited
US3934573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |