US4122832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar collector
Assignee: Individual
•
Filing: 1977-05-04
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Granted: 1978-10-31
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Expires: 1997-05-04
Abstract
Abstract A solar collector is described comprising an extrusion, preferably of cellular plastics material, having a longitudinally extending recess and a metal absorber sheet thereover, a tube disposed within the recess in contact with the metal absorber sheet, and a transparent window. The extrusion recess is of semi-circular cross-section, and the tube is of circular cross-section and has an outer diameter substantially equal to that of the recess. In some described embodiments, the window is received on flanges formed at the edges of the extrusion; and in other described embodiments, it is integrally formed with the plastics extrusion.
Inventors
- 👤 Ladislav Hirschsohn
- 👤 Ephraim Hirschsohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:27
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/70; F24S10/75; F24S25/00; F24S2010/751; F24S2010/752; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y02E10/47; Y10; Y10S; Y10S126/00; Y10S126/907
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
119 words
A solar collector for heating a liquid by solar radiations, comprising: an extrusion having at least one straight longitudinally-extending recess formed therein of semi-circular cross-section; a straight tube disposed within the longitudinally-extending recess for the liquid to be heated by the solar radiations; said tube being of circular cross-section and having an outer diameter substantially equal to the diameter of the semi-circular recess; and a transparent window overlying the extrusion and the straight tube disposed within its recess, said extrusion being of plastics material, and the tube being of metal, the collector further including a metal absorber having a solar-radiation-absorbing surface facing said window, the metal absorber including a longitudinally-recessed portion underlying and in contact with the metal tube.
Claim 2
Dependent Claim
119 words
A solar collector for heating a liquid by solar radiations, comprising: an extrusion having at least one straight longitudinally-extending recess formed therein of semi-circular cross-section; a straight tube disposed within the longitudinally-extending recess for the liquid to be heated by the solar radiations; said tube being of circular cross-section and having an outer diameter substantially equal to the diameter of the semi-circular recess; and a transparent window overlying the extrusion and the straight tube disposed within its recess, said extrusion being of plastics material, and the tube being of metal, the collector further including a metal absorber having a solar-radiation-absorbing surface facing said window, the metal absorber including a longitudinally-recessed portion underlying and in contact with the metal tube.
Claim 3
Dependent Claim
17 words
A collector according to claim 1, wherein the plastics material of the extrusion is of cellular construction.
Claim 4
Dependent Claim
36 words
A collector according to claim 1, wherein said extrusion is integrally formed with a pair of spaced, inwardly-directed flanges along each of its two longitudinal edges, the edges of said window being received within said flanges.
Claim 5
Dependent Claim
20 words
A collector according to claim 1, further including clamps extending transversely across the tube and clamping same to the extrusion.
Claim 6
Dependent Claim
28 words
A collector according to claim 1, wherein the two opposite sides of the extrusion outwardly of its longitudinally-extending recess are formed at an obtuse angle to each other.
Claim 7
Dependent Claim
22 words
A collector according to claim 1, wherein the transparent window is formed integrally with and constitutes a part of the longitudinally-extending extrusion.
Claim 8
Dependent Claim
31 words
A solar collector according to claim 6, wherein the transparent window also includes a longitudinally-extending recessed portion which portion is spaced from the tube to produce an air chamber there between.
Claim 9
Dependent Claim
43 words
A solar collector according to claim 6, wherein the transparent window includes a longitudinally-extending recessed portion aligned with the recessed portion of the metal absorber, said tube being disposed between and in contact with said recessed portions of the metal absorber and window.
Claim 10
Dependent Claim
55 words
A collector according to claim 1, wherein the metal absorber is constituted of a blackened metal sheet having a plurality of vanes formed at an angle to the planes of the longitudinal and transverse axes of the extrusion to permit the absorber to intercept solar radiations when the collector is mounted in a vertical position.
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) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |