US4038966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heat collector tank
Assignee: Halm Instrument Co Inc
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Filing: 1975-10-09
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Granted: 1977-08-02
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Expires: 1995-10-09
Abstract
Abstract A solar heat collector. A thin evacuated tank has upper and lower parallel sides, the upper side having a black exterior surface, the tank being mounted at an angle to the horizontal. A small amount of vaporizable fluid is contained in the tank. A fluid conduit is connected in heat exchanging relation with the upper end of the tank. Solar rays striking said upper tank surface will vaporize the fluid in the tank and the vapor will flow to the upper portion of the tank where it will be condensed and transfer its heat to fluid in the conduit.
Inventors
- 👤 Henry Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:13
CPC Classifications
F; F24; F24S; F24S50/00; F24S10/00; F24S10/90; F24S10/95; F24S40/00; F24S40/50; F24S40/53; F24S40/58; F24S80/00; F24S80/50; F24S80/56; F24S80/58; F24S25/00; F24S2025/01; F24S2025/011; F24S2080/501; F24S2080/502; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
A solar heat collector comprising, a thin evacuated tank having upper and lower parallel sides, said upper side having a black exterior surface, said tank being mounted at an angle to the horizontal, a predetermined amount of vaporizable fluid in said tank, a fluid conduit connected in heat exchanging relation with the upper end of said tank, whereby solar rays striking said upper tank surface will vaporize said fluid in said tank and the vapor will rise to the upper portion of the tank where it will be condensed and transfer its heat to fluid in said conduit.
Claim 2
Dependent Claim
98 words
A solar heat collector comprising, a thin evacuated tank having upper and lower parallel sides, said upper side having a black exterior surface, said tank being mounted at an angle to the horizontal, a predetermined amount of vaporizable fluid in said tank, a fluid conduit connected in heat exchanging relation with the upper end of said tank, whereby solar rays striking said upper tank surface will vaporize said fluid in said tank and the vapor will rise to the upper portion of the tank where it will be condensed and transfer its heat to fluid in said conduit.
Claim 3
Dependent Claim
16 words
Apparatus as in claim 1, having a transparent cover spaced over the surface of said tank.
Claim 4
Dependent Claim
44 words
Apparatus as in claim 1, wherein the interior surface of one side of said tank has spaced, raised, curved ridges to distribute the condensed fluid in said tank over said interior surface so that it may be quickly vaporized again by the solar heat.
Claim 5
Dependent Claim
14 words
Apparatus as in claim 1, having an automatic pressure relief vent in said tank.
Claim 6
Dependent Claim
31 words
Apparatus as in claim 2, having non-restraining members of pliable heat-insulating material on all edges whereby the spaces between the tank and cover members are closed against heat loss and contamination.
References Cited (Backward Citations)
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Cited
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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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |