US4131485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy collector and concentrator
Assignee: Motorola Solutions Inc
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Filing: 1978-03-06
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Granted: 1978-12-26
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Expires: 1998-03-06
Abstract
Abstract Modular structures for the collection, concentration and conversion of solar energy to another usable form such as electrical energy. The structures feature three conic section reflective surfaces, two of which focus in front of a receiver element and off the axis of the structure. The third reflective surface is utilized to redirect that energy which would otherwise miss the receiver element to improve overall efficiency.
Inventors
- 👤 Aden B. Meinel
- 👤 Walter B. Meinel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:16
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/40; H10F77/42; H10F77/488; F; F24; F24S; F24S23/00; F24S23/70; F24S23/79; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/50; Y02E10/52
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
230 words
An apparatus for collecting energy from a remote electromagnetic radiation source, the apparatus having a cross section generally symmetrical about an axis, a cross section of the apparatus comprising in combination: first reflective means for collecting and reflecting the energy from the remote source, said first reflective means being concave and having a shape generally of a conic section, said first conic section shape having an axis substantially coincident with the axis of the apparatus, said first reflective means having an aperture around said apparatus axis; second reflective means spaced from said first reflective means for collecting said energy reflected from said first reflective means and for further reflecting the energy through said aperture in said first reflective means, that portion of said second reflective means lying on one side of the axis of the apparatus and facing said first reflective means being convex and having a shape generally of a conic section, said second conic section shape having an axis being angularly displaced from the axis of the apparatus; and receiving means for absorbing said further reflected energy, a nominal ray crossover point of said further reflected energy being between said second reflective means and said receiving means, said receiving means being positioned to receive said further reflected energy through said aperture in said first reflective means, said further reflected energy being thereby dispersed generally over said receiving means.
Claim 2
Independent Claim
230 words
An apparatus for collecting energy from a remote electromagnetic radiation source, the apparatus having a cross section generally symmetrical about an axis, a cross section of the apparatus comprising in combination: first reflective means for collecting and reflecting the energy from the remote source, said first reflective means being concave and having a shape generally of a conic section, said first conic section shape having an axis substantially coincident with the axis of the apparatus, said first reflective means having an aperture around said apparatus axis; second reflective means spaced from said first reflective means for collecting said energy reflected from said first reflective means and for further reflecting the energy through said aperture in said first reflective means, that portion of said second reflective means lying on one side of the axis of the apparatus and facing said first reflective means being convex and having a shape generally of a conic section, said second conic section shape having an axis being angularly displaced from the axis of the apparatus; and receiving means for absorbing said further reflected energy, a nominal ray crossover point of said further reflected energy being between said second reflective means and said receiving means, said receiving means being positioned to receive said further reflected energy through said aperture in said first reflective means, said further reflected energy being thereby dispersed generally over said receiving means.
Claim 3
Dependent Claim
45 words
The apparatus according to claim 1 wherein: a third reflective means for reflecting electromagnetic radiation energy is connected between said first reflective means at said aperture and a perimeter of said receiving means, said third reflective means having a shape generally of a conic section.
Claim 4
Dependent Claim
31 words
The apparatus according to claim 2 wherein the apparatus is further defined by rotating the cross section about the axis of the apparatus to develop a structure having circular cross sections.
Claim 5
Dependent Claim
36 words
The apparatus according to claim 3 wherein: said third reflective means is enclosed and connected to a shell, said shell having on the outer surface thereof connecting means for connecting the apparatus to a using structure.
Claim 6
Dependent Claim
13 words
The apparatus according to claim 4 wherein said shell comprises a heat sink.
Claim 7
Dependent Claim
44 words
The apparatus according to claim 3 comprising: transparent means for supporting said second reflective means and for allowing transmission of electromagnetic energy therethrough, said transparent means having an outer perimeter, said outer perimeter being coextensive with an outer perimeter of said first reflective means.
Claim 8
Dependent Claim
30 words
The apparatus according to claim 2 wherein the apparatus is further defined by moving the axis of the apparatus in a plane to develop a trough-like structure of modular form.
Claim 9
Dependent Claim
24 words
The apparatus according to claim 7 wherein: heat sink means for dissipating excess energy from said receiving means is connected to said receiving means.
Claim 10
Dependent Claim
49 words
The apparatus according to claim 7 comprising transparent means for supporting said second reflective means and for allowing transmission of electromagnetic energy therethrough, said first reflective means and said transparent means having outer extremities thereof, said outer extremities of said first reflective means and said transparent means being coextensive.
Claim 11
Dependent Claim
24 words
The apparatus according to claim 2 wherein said conic section of said third reflective means is angularly displaced from the axis of the apparatus.
Claim 12
Dependent Claim
14 words
The apparatus according to claim 1 wherein said receiving means comprises a photovoltaic cell.
Claim 13
Independent Claim
260 words
An apparatus for collecting energy from a remote electromagnetic radiation source, the apparatus having a cross section generally symmetrically about an axis, a cross section of the apparatus comprising in combination: first reflective means for collecting and reflecting the energy from the remote source, said first reflective means being concave and having a shape generally of a conic section, said first conic section shape having an axis substantially coincident with the axis of the apparatus, said first reflective means having an aperture around said apparatus axis; second reflective means spaced from said first reflective means for collecting said energy reflected from said first reflective means and for further reflecting the energy through said aperture in said first reflective means, that portion of said second reflective means lying on one side of the axis of the apparatus and facing said first reflective means being convex and having a shape generally of a conic section, said second conic section shape having an axis being angularly displaced from the axis of the apparatus, said second reflective means having a nominal ray crossover point of said further reflected energy lying off the axis of the apparatus, and receiving means for absorbing said further reflected energy, said receiving means comprising a receiving surface area, said nominal ray crossover point of said further reflected energy being between said second reflective means and said receiving means, said receiving means being positioned to receive said further reflected energy through said aperture in said first reflective means, said further reflected energy being thereby dispersed generally over said receiving means.
Claim 14
Independent Claim
260 words
An apparatus for collecting energy from a remote electromagnetic radiation source, the apparatus having a cross section generally symmetrically about an axis, a cross section of the apparatus comprising in combination: first reflective means for collecting and reflecting the energy from the remote source, said first reflective means being concave and having a shape generally of a conic section, said first conic section shape having an axis substantially coincident with the axis of the apparatus, said first reflective means having an aperture around said apparatus axis; second reflective means spaced from said first reflective means for collecting said energy reflected from said first reflective means and for further reflecting the energy through said aperture in said first reflective means, that portion of said second reflective means lying on one side of the axis of the apparatus and facing said first reflective means being convex and having a shape generally of a conic section, said second conic section shape having an axis being angularly displaced from the axis of the apparatus, said second reflective means having a nominal ray crossover point of said further reflected energy lying off the axis of the apparatus, and receiving means for absorbing said further reflected energy, said receiving means comprising a receiving surface area, said nominal ray crossover point of said further reflected energy being between said second reflective means and said receiving means, said receiving means being positioned to receive said further reflected energy through said aperture in said first reflective means, said further reflected energy being thereby dispersed generally over said receiving means.
Claim 15
Dependent Claim
45 words
The apparatus according to claim 12 wherein: a third reflective means for reflecting electromagnetic radiation energy is connected between said first reflective means at said aperture and a perimeter of said receiving means, said third reflective means having a shape generally of a conic section.
Claim 16
Dependent Claim
31 words
The apparatus according to claim 13 wherein the apparatus is further defined by rotating the cross section about the axis of the apparatus to develop a structure having circular cross sections.
Claim 17
Dependent Claim
36 words
The apparatus according to claim 14 wherein: said third reflective means is enclosed and connected to a shell, said shell having on the outer surface thereof connecting means for connecting the apparatus to a using structure.
Claim 18
Dependent Claim
13 words
The apparatus according to claim 15 wherein said shell comprises a heat sink.
Claim 19
Dependent Claim
44 words
The apparatus according to claim 14 comprising: transparent means for supporting said second reflective means and for allowing transmission of electromagnetic energy therethrough, said transparent means having an outer perimeter, said outer perimeter being coextensive with an outer perimeter of said first reflective means.
Claim 20
Dependent Claim
30 words
The apparatus according to claim 13 wherein the apparatus is further defined by moving the axis of the apparatus in a plane to develop a trough-like structure of modular form.
Claim 21
Dependent Claim
24 words
The apparatus according to claim 18 wherein: heat sink means for dissipating excess energy from said receiving means is connected to said receiving means.
Claim 22
Dependent Claim
49 words
The apparatus according to claim 18 comprising: transparent means for supporting said second reflective means and for allowing transmission of electromagnetic energy therethrough, said first reflective means and said transparent means having outer extremities thereof, said outer extremities of said first reflective means and said transparent means being coextensive.
Claim 23
Dependent Claim
24 words
The apparatus according to claim 13 wherein said conic section of said third reflective means is angularly displaced from the axis of the apparatus.
Claim 24
Dependent Claim
14 words
The apparatus according to claim 12 wherein said receiving means comprises a photovoltaic cell.
Claim 25
Independent Claim
302 words
An apparatus for collecting energy from a remote electromagnetic radiation source, the apparatus having a cross section generally symmetrical about an axis and having a right side and a left side, a cross section of the apparatus comprising in combination: first reflective means for collecting and reflecting the energy from the remote source, said first reflective means being concave and having a shape generally of a conic section, said first conic section shape having an axis substantially coincident with the axis of the apparatus, said first reflective means having an aperture around said apparatus axis; second reflective means spaced from said first reflective means for collecting said energy reflected from said first reflective means and for further reflecting the energy through said aperture in said first reflective means, that portion of said second reflective means lying on one side of the axis of the apparatus and facing said first reflective means being convex and having a shape generally of a conic section, said second conic section shape having an axis being angularly displaced from the axis of the apparatus; and receiving means for absorbing said further reflected energy, said receiving means comprising a receiving surface area, a nominal ray crossover point of said further reflected energy being between said second reflective means and said receiving means, said receiving means being positioned to receive said further reflected energy through said aperture in said first reflective means, said further reflected energy being derived from the energy of the remote source impinging of the right side of the apparatus being thereby dispersed generally over a left side of said receiving means, and said further reflected energy being derived from the energy of the remote source impinging of the left side of the apparatus being thereby dispersed generally over a right side of said receiving means.
Claim 26
Independent Claim
302 words
An apparatus for collecting energy from a remote electromagnetic radiation source, the apparatus having a cross section generally symmetrical about an axis and having a right side and a left side, a cross section of the apparatus comprising in combination: first reflective means for collecting and reflecting the energy from the remote source, said first reflective means being concave and having a shape generally of a conic section, said first conic section shape having an axis substantially coincident with the axis of the apparatus, said first reflective means having an aperture around said apparatus axis; second reflective means spaced from said first reflective means for collecting said energy reflected from said first reflective means and for further reflecting the energy through said aperture in said first reflective means, that portion of said second reflective means lying on one side of the axis of the apparatus and facing said first reflective means being convex and having a shape generally of a conic section, said second conic section shape having an axis being angularly displaced from the axis of the apparatus; and receiving means for absorbing said further reflected energy, said receiving means comprising a receiving surface area, a nominal ray crossover point of said further reflected energy being between said second reflective means and said receiving means, said receiving means being positioned to receive said further reflected energy through said aperture in said first reflective means, said further reflected energy being derived from the energy of the remote source impinging of the right side of the apparatus being thereby dispersed generally over a left side of said receiving means, and said further reflected energy being derived from the energy of the remote source impinging of the left side of the apparatus being thereby dispersed generally over a right side of said receiving means.
Claim 27
Dependent Claim
45 words
The apparatus according to claim 23 wherein: a third reflective means for reflecting electromagnetic radiation energy is connected between said first reflective means at said aperture and a perimeter of said receiving means, said third reflective means having a shape generally of a conic section.
Claim 28
Dependent Claim
32 words
The apparatus according to claim 24 wherein the apparatus is further defined by rotating the cross section about the axis of the apparatus to develop a structure having a circular cross section.
Claim 29
Dependent Claim
36 words
The apparatus according to claim 25 wherein: said third reflective means is enclosed and connected to a shell, said shell having on the outer surface thereof connecting means for connecting the apparatus to a using structure.
Claim 30
Dependent Claim
13 words
The apparatus according to claim 26 wherein said shell comprises a heat sink.
Claim 31
Dependent Claim
44 words
The apparatus according to claim 25 comprising: transparent means for supporting said second reflective means and for allowing transmission of electromagnetic energy therethrough, said transparent means having an outer perimeter, said outer perimeter being coextensive with an outer perimeter of said first reflective means.
Claim 32
Dependent Claim
30 words
The apparatus according to claim 24 wherein the apparatus is further defined by moving the axis of the apparatus in a plane to develop a trough-like structure of modular form.
Claim 33
Dependent Claim
24 words
The apparatus according to claim 29 wherein: heat sink means for dissipating excess energy from said receiver means is connected to said receiver means.
Claim 34
Dependent Claim
49 words
The apparatus according to claim 29 comprising: transparent means for supporting said second reflective means and for allowing transmission of electromagnetic energy therethrough, said first reflective means and said transparent means having outer extremities thereof, said outer extremities of said first reflective means and said transparent means being coextensive.
Claim 35
Dependent Claim
24 words
The apparatus according to claim 24 wherein said conic section of said third reflective means is angularly displaced from the axis of the apparatus.
Claim 36
Dependent Claim
14 words
The apparatus according to claim 23 wherein said receiving means comprises a photovoltaic cell.
References Cited (Backward Citations)
US3085565A
Cited
US3254342A
Cited
US3443086A
Cited
US3887263A
Cited
US3929510A
Cited
US3988166A
Cited
US4045246A
Cited
US4024852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |