Patent US4080956A successfully refreshed from Google Patents.
US4080956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heat absorber
Assignee: Individual
•
Filing: 1975-06-02
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Granted: 1978-03-28
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Expires: 1995-06-02
Abstract
Abstract An insulated, watertight housing having a transparent panel forming a closure for the upper end and an absorption plate disposed inwardly of the transparent panel and provided with piping secured to the bottom surface thereof with the plate and piping being arcuately curved with the convex surface disposed upwardly and provided with a black coating on the upper surface thereof. In one embodiment, the piping is connected with an insulated storage tank for water circulation. In another embodiment, the piping serves as guide means and heat exchange means with air passing under the plate with this embodiment also including curved members which form a venturi secured to the underside of the plate to render the heat exchange between the plate and circulating air more efficient.
Inventors
- 👤 Richard W. Dawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:48
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/70; F24S10/75; F24S10/755; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
A solar heat absorber comprising an insulated housing having a transparent member exposed to solar heat, and an absorber plate mounted in said housing below in transparent member, said absorber plate comprising a heat conductive panel having a substantially smooth and uninterrupted surface facing the transparent member, conduit means disposed completely below the panel and adapted to be communicated with heat exchange fluid inlet and outlet means, and means securing said conduit means to the understanding of said panel, said panel being arcuately curved with the convex surface disposed adjacent to but in spaced relation to the transparent member, the periphery of the panel being adjacent the internal insulation forming the insulated housing to provide a dome-like cavity in underlying relation to the panel for enabling the solar heat to elevate the temperature of the heat conductive panel, said conduit means being constructed of heat conductive material for efficient transfer of heat to the heat exchange fluid.
Claim 2
Dependent Claim
157 words
A solar heat absorber comprising an insulated housing having a transparent member exposed to solar heat, and an absorber plate mounted in said housing below in transparent member, said absorber plate comprising a heat conductive panel having a substantially smooth and uninterrupted surface facing the transparent member, conduit means disposed completely below the panel and adapted to be communicated with heat exchange fluid inlet and outlet means, and means securing said conduit means to the understanding of said panel, said panel being arcuately curved with the convex surface disposed adjacent to but in spaced relation to the transparent member, the periphery of the panel being adjacent the internal insulation forming the insulated housing to provide a dome-like cavity in underlying relation to the panel for enabling the solar heat to elevate the temperature of the heat conductive panel, said conduit means being constructed of heat conductive material for efficient transfer of heat to the heat exchange fluid.
Claim 3
Dependent Claim
70 words
The structure as defined in claim 1 wherein said heat conductive panel is of sheet metal, said conduit means being in the form of a metal tube of serpentine configuration disposed against the undersurface of said panel, said means securing the conduit means to the panel including a hardenable material positioned solely along one side of the tube for joining the tube to the panel in heat exchange, contacting relation.
Claim 4
Dependent Claim
93 words
The structure as defined in claim 1 wherein said conduit means includes a plurality of substantially parallel, open ended tubes secured to the undersurface of said panel for reception of heat exchange air passing therethrough and therebetween, said tubes being shorter than the panel, and a pair of longitudinally extending plates secured to the undersurface of said panel and including an inwardly curved area therebetween defining a venturi disposed in spaced but generally aligned relation to the tubes to increase air flow velocity along the undersurface of the panel and through the tubes.
Claim 5
Dependent Claim
66 words
The structure as defined in claim 1 wherein the peripheral edge of said panel is slightly spaced from the interior insulation to enable thermosiphon flow of air around the plate to more efficiently heat both surfaces of the plate and reduce condensation on the interior of the transparent member, said interior insulation having a reflective lining to enhance heat absorption by the panel and conduit means.
Claim 6
Dependent Claim
40 words
The structure as defined in claim 2 wherein said serpentine tube is constructed so that one convolution thereof is at a lower level than all of the other convolutions to enable drainage of liquid heat exchange fluid from the tubes.
References Cited (Backward Citations)
US2202756A
Cited
FR892332A
Cited
US2489751A
Cited
US2969637A
Cited
US3194228A
Cited
US3039453A
Cited
US3152260A
Cited
US3464402A
Cited
US3496994A
Cited
GB1301853A
Cited
US3898979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |