US4099516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy pick-up
Assignee: Individual
•
Filing: 1976-04-28
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Granted: 1978-07-11
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Expires: 1996-04-28
Abstract
Abstract The present invention relates to solar energy pick-ups composed of a fixed cylindrical mirror having an elliptic transverse section and a heat collector parallel to the generatrices of the cylinder, placed at the bottom of the mirror, in the plane parallel to the large axis of the ellipse in which a heat-carrying fluid circulates.
Inventors
- 👤 Daniel Pierre Caulier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:27
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04; F21V7/08; F24; F24S; F24S23/00; F24S23/70; G; G02; G02B; G02B5/00; G02B5/08; G02B5/10; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S126/00; Y10S126/907
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
150 words
A solar energy pick-up producing an energy concentrating effect, comprising an elongated fixed mirror having a semi-elliptical transverse cross-section, said mirror having a light reflective surface on the concave side of its semi-elliptical cross-section, an open side, and a bottom portion opposite said open side adjacent the intersection of the major semi-axis of its semi-elliptical cross-section with the mirror, and a longitudinally extending heating collector positioned within the semi-elliptical cross-section of the mirror near said bottom portion thereof and along the major semi-axis of said mirror; said collector having a width L extending from adjacent the bottom portion of the mirror toward said open side thereof along said major semi-axis and said major semi-axis of the semi-elliptical mirror having a length a, said width L and length a being selected such that the width L is smaller than the length a and the ratio L/a is between 1/8 and 1/3.
Claim 2
Dependent Claim
150 words
A solar energy pick-up producing an energy concentrating effect, comprising an elongated fixed mirror having a semi-elliptical transverse cross-section, said mirror having a light reflective surface on the concave side of its semi-elliptical cross-section, an open side, and a bottom portion opposite said open side adjacent the intersection of the major semi-axis of its semi-elliptical cross-section with the mirror, and a longitudinally extending heating collector positioned within the semi-elliptical cross-section of the mirror near said bottom portion thereof and along the major semi-axis of said mirror; said collector having a width L extending from adjacent the bottom portion of the mirror toward said open side thereof along said major semi-axis and said major semi-axis of the semi-elliptical mirror having a length a, said width L and length a being selected such that the width L is smaller than the length a and the ratio L/a is between 1/8 and 1/3.
Claim 3
Dependent Claim
18 words
A pick-up as claimed in claim 1 in which said ellipse has an eccentricity e greater than 0.80.
Claim 4
Dependent Claim
63 words
A pick-up as claimed in claim 2, wherein said mirror has a transverse section in the form of a semi-ellipse cut along the small axis and a pair of open longitudinally spaced ends; a transparent plate closing said open side of the mirror and a pair of side plates respectively closing said open ends of the mirror thereby to define a tight enclosure.
Claim 5
Dependent Claim
27 words
A pick-up as claimed in claim 2, in which said heat collector is constituted by a flat, hollow body, elongated parallel to the generatrices of the cylinder.
Claim 6
Dependent Claim
39 words
A pick-up as claimed in claim 2, wherein said collector is constituted by a plurality of tubes parallel to the generatrices of the semi-elliptical mirror which are juxtaposed in the plane passing through the major-semi axis of the ellipse.
Claim 7
Dependent Claim
92 words
A pick-up as claimed in claim 2, including a pair of spaced semi-elliptically shaped plates and a frame securing said end plates together longitudinally spaced relation to each other; said mirror being composed of a rectangular plate having a reflecting face, a pair of longitudinally spaced opposite side edges, and a pair of laterally spaced side edges extending therebetween, said plate being fixed at said longitudinally spaced opposite edges on the periphery of said two rigid side plates and at its laterally spaced side edges on two opposite sides of said frame.
Claim 8
Dependent Claim
47 words
A pick-up as claimed in claim 1, wherein said tubes are placed near the outer face of the mirror, and said pick-up includes means for connecting said tubes to said heat collector whereby the heat carrying fluid circulates in said tubes before penetrating into the heat collector.
Claim 9
Dependent Claim
52 words
A pick-up as claim in claim 1, wherein said mirror is formed of two envelopes separated by an intermediate space and said pick-up includes means for connecting said intermediate space to said collector, whereby said heat carrying fluid circulates in said intermediate space where it is preheated before penetrating into the collector.
Claim 10
Dependent Claim
22 words
A pick-up as claimed in claim 3, wherein the inner reflecting face of the mirror is coated with a transparent polymerizable resin.
Claim 11
Dependent Claim
21 words
A pick-up as claimed in claim 2, wherein the opening of the mirror is obturated by a plate of grooved glass.
Claim 12
Dependent Claim
30 words
A pick-up as claimed in claim 4, wherein at least a part of the outer surface of the heat collector is coated with a layer of small diameter glass balls.
Claim 13
Dependent Claim
64 words
A pick-up as claimed in claim 1 comprising, a cylindrical mirror which presents a transverse section composed of two ellipse portions juxtaposed by their apex and having the same axis which is inclined with respect to the horizontal plane, the upper ellipse having an eccentricity greater than that of the lower ellipse and a vertical transparent plate which closes the aperture of said mirror.
References Cited (Backward Citations)
US937013A
Cited
US1345758A
Cited
US1951403A
Cited
US4011855A
Cited
US3929122A
Cited
US3957031A
Cited
US4003366A
Cited
US3990430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |