US4230095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ideal light concentrators with reflector gaps
Assignee: United States Department of Energy
•
Filing: 1978-05-26
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Granted: 1980-10-28
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Expires: 1998-05-26
Abstract
Abstract A cylindrical or trough-like radiant energy concentration and collection device is provided. The device includes an energy absorber, a glazing enveloping the absorber and a reflective wall. The ideal contour of the reflective wall is determined with reference to a virtual absorber and not the actual absorber cross section.
Inventors
- 👤 Roland Winston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:52
CPC Classifications
F; F24; F24S; F24S23/00; F24S23/70; F24S23/80; F24S2023/83; F24S2023/838; Y; Y02; Y02E; Y02E10/00; Y02E10/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
A cylindrical radiant energy concentration and collection device, comprising: an energy absorber having an exterior surface, a glazing enveloping and spaced from said absorber, and a first reflective wall, said absorber, said glazing and said first wall being aligned parallel to an axis to form a trough-shaped structure, said wall having an ideal contour determined with respect to a virtual absorber shape, said virtual absorber shape having a cross sectional area in a plane perpendicular to said axis defined by the cross sectional area of said absorber in said plane and the additional area defined by the intersection of a first and a second tangent line drawn from a first and a second point respectively along said glazing to be tangent with the exterior surface of said absorber.
Claim 2
Dependent Claim
128 words
A cylindrical radiant energy concentration and collection device, comprising: an energy absorber having an exterior surface, a glazing enveloping and spaced from said absorber, and a first reflective wall, said absorber, said glazing and said first wall being aligned parallel to an axis to form a trough-shaped structure, said wall having an ideal contour determined with respect to a virtual absorber shape, said virtual absorber shape having a cross sectional area in a plane perpendicular to said axis defined by the cross sectional area of said absorber in said plane and the additional area defined by the intersection of a first and a second tangent line drawn from a first and a second point respectively along said glazing to be tangent with the exterior surface of said absorber.
Claim 3
Dependent Claim
48 words
The device of claim 1 further including a second reflective wall opposed to said first reflective wall, a virtual absorber determinable by the shape of the energy absorber and first and second tangent lines, said second wall having an ideal contour determined with respect to said virtual absorber.
Claim 4
Dependent Claim
13 words
The device of claim 2 wherein said absorber is circular in cross section.
Claim 5
Dependent Claim
23 words
The device of claim 2 wherein said absorber includes a flat plate with means coupled thereto for removing heat absorbed by the plate.
Claim 6
Dependent Claim
65 words
The device of claim 1 wherein said first wall terminates at a second point wherein a line from said first point to said second point is parallel to one of said tangent lines and crosses the optic axis of said device, and wherein said first wall extends beyond said second point with ideal contour of said extension being determined with respect to said first point.
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |