Patent CH69168A successfully refreshed from Google Patents.
US4073282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar panel
Assignee: Individual
•
Filing: 1976-09-16
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Granted: 1978-02-14
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Expires: 1996-09-16
Abstract
Abstract A solar collector for use in receiving solar radiation and converting the same to heat. A matrix of plural layers of slit-and-expanded sheets are contained within the solar collector and the heat produced by the matrix absorbing solar radiation is transferred by convection into a forced fluid path. The surfaces of the slit-and-expanded sheets are coated to absorb and convert the radiant energy to heat and the various layers are relatively positioned at 90° to provide improved tracking of the sun in its diurnal path, the sheets having unidirectional raised portions to more efficiently absorb the sun's rays. A reflective surface behind the matrix reflects solar energy back into the matrix. A fluid, usually air, is heated by convection as it is forced through the matrix in the solar collector.
Inventors
- 👤 Arno H. Schriefer, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:46
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/80; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
In a solar collector having a housing, a front transparent panel to allow solar energy to pass into the housing, a back panel, and means for delivering forced fluid into and out of the housing, the improvement comprising a matrix of multiple layers of a black coated sheet, each layer having a plurality of open meshes defined by a closed loop, each loop having a raised side portion and a lowered side portion, and all said raised portions being regularly repeated along a unidirectional line, said unidirectional line in one sheet positioned at 90° relative to a unidirectional line in an adjoining sheet of the matrix, and a reflective surface within the housing at said back panel, said reflective surface spaced from said matrix.
Claim 2
Dependent Claim
124 words
In a solar collector having a housing, a front transparent panel to allow solar energy to pass into the housing, a back panel, and means for delivering forced fluid into and out of the housing, the improvement comprising a matrix of multiple layers of a black coated sheet, each layer having a plurality of open meshes defined by a closed loop, each loop having a raised side portion and a lowered side portion, and all said raised portions being regularly repeated along a unidirectional line, said unidirectional line in one sheet positioned at 90° relative to a unidirectional line in an adjoining sheet of the matrix, and a reflective surface within the housing at said back panel, said reflective surface spaced from said matrix.
Claim 3
Dependent Claim
29 words
The improvement in a solar collector which includes the features of claim 1 wherein said reflective surface includes a reflective film bonded to a rigid, low density insulating body.
Claim 4
Dependent Claim
70 words
The improvement in a solar collector which includes the features of claim 1 wherein said matrix has three layers of black coated sheet, a first and last layer having said regularly repeatedly raised portion along unidirectional lines which are disposed at 180° relative to each other, and an intermediate layer having said raised portions regularly repeated along a unidirectional line which is positioned at 90° relative to said other layers.
Claim 5
Dependent Claim
39 words
The improvement in a solar collector which includes the features of claim 3 wherein each of said layers in a slit-and-expanded aluminum sheet, the mesh openings and the closed loops having substantially uniform dimension in each of said sheets.
Claim 6
Dependent Claim
59 words
The improvement in a solar collector which includes the features of claim 4 wherein each closed loop has a leading raised side and a trailing lowered side, and each of said sides having spaced terminating ends which close the loop, the leading and trailing sides having portions displaced from the axis of the loop which connect said terminating ends.
Claim 7
Dependent Claim
75 words
The improvement in a solar collector which includes the features of claim 5 wherein the raised sides of each closed loop are aligned in spaced relationship by a lowered side along sets of rows which are normal to one another, said alignment being along a line which is tangential to the raised sides in one set of rows; and said alignment being along a line which intersects said sides along the other set of rows.
Claim 8
Dependent Claim
36 words
The improvement in a solar collector which includes the features of claim 6 wherein spacer bodies separate one sheet from another sheet so that the respective sheets are closely bunched in parallel relationship within the matrix.
References Cited (Backward Citations)
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US2998005A
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US3102532A
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Cited
US3875925A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |