US3561425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heaters
Assignee: Individual
•
Filing: 1968-06-17
•
Granted: 1971-02-09
•
Expires: 1988-06-17
Abstract
Abstract A Solar Heater comprising a bank of panels each consisting of an inclined wooden frame supporting a heat collecting lamina and an adjacent backing surface the lamina collecting sunlight and the backing surface having a horizontal top edge over which liquid is supplied and is heated as it descends between the lamina and the backing surface.
Inventors
- 👤 James Geary Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:24
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/60; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
A solar heating unit comprising a frame, a heat collecting lamina and an adjacent backing surface each supported on said frame in a position inclined to the horizontal, said heat collecting lamina being a flexible sheet of plastic material with a matte black surface, said adjacent backing surface including a plastic sheet having a plurality of dimples engaging said flexible sheet to provide a space between said sheets, said backing surface also having a horizontal top edge over which liquid is supplied, the liquid being heated as it descends between said sheets and is spread thereacross by said dimples, means on said frame defining a trough extending alongside the top edge of said backing surface to receive the liquid to be heated and distribute it along the top edge of said backing surface, said trough being divided transversely into compartments, and a manifold pipe disposed above said trough having a plurality of outlets for supplying liquid to the respective compartments.
Claim 2
Dependent Claim
160 words
A solar heating unit comprising a frame, a heat collecting lamina and an adjacent backing surface each supported on said frame in a position inclined to the horizontal, said heat collecting lamina being a flexible sheet of plastic material with a matte black surface, said adjacent backing surface including a plastic sheet having a plurality of dimples engaging said flexible sheet to provide a space between said sheets, said backing surface also having a horizontal top edge over which liquid is supplied, the liquid being heated as it descends between said sheets and is spread thereacross by said dimples, means on said frame defining a trough extending alongside the top edge of said backing surface to receive the liquid to be heated and distribute it along the top edge of said backing surface, said trough being divided transversely into compartments, and a manifold pipe disposed above said trough having a plurality of outlets for supplying liquid to the respective compartments.
Claim 3
Dependent Claim
25 words
A solar heater unit as defined in claim 1 comprising a trough located below said backing surface receiving the liquid descending between said plastic sheets.
References Cited (Backward Citations)
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Cited
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |