Patent US3090376A successfully refreshed from Google Patents.
US3090376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool heater
Assignee: Individual
•
Filing: 1957-06-24
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Granted: 1963-05-21
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Expires: 1977-06-24
Abstract
No abstract record available.
Inventors
- 👤 Chambers John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:31
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/129; F; F24; F24H; F24H1/00; F24H1/10; F24H1/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A HEATER FOR SWIMMING POOL WATER COMPRISING, A WATER INLET, SIDE BY SIDE GENERALLY VERTICAL TUBES, MEANS TO INTRODUCE WATER SPIRALLY FROM SAID INLET INTO SAID TUBES SO THAT FLOW IN THE TUBES IN ATTENUATED AND IS IN A DOWNWARD DIRECTION IN BOTH TUBES, ONE OF SAID TUBES HAVING A CAP AT THE UPPER END THEREOF CONTAINING A GAS HEATER WITH A DIS CHARGE INTO SAID TUBE, MEANS TO CAUSE A FLOW OF THE EXHAUST FROM SAID GAS HEATER DOWNWARD IN SAID TUBE AND UPWARD IN THE OTHER TO GENERATE HEAT IN CONTACT WITH THE FLOWS OF WATER FOR HEATING THE LATTER, AND MEANS TO DRAW THE HEATED WATER BACK TOWARD A POOL AFTER THE SAME LEAVES THE TUBES.
Claim 2
Dependent Claim
119 words
A HEATER FOR SWIMMING POOL WATER COMPRISING, A WATER INLET, SIDE BY SIDE GENERALLY VERTICAL TUBES, MEANS TO INTRODUCE WATER SPIRALLY FROM SAID INLET INTO SAID TUBES SO THAT FLOW IN THE TUBES IN ATTENUATED AND IS IN A DOWNWARD DIRECTION IN BOTH TUBES, ONE OF SAID TUBES HAVING A CAP AT THE UPPER END THEREOF CONTAINING A GAS HEATER WITH A DIS CHARGE INTO SAID TUBE, MEANS TO CAUSE A FLOW OF THE EXHAUST FROM SAID GAS HEATER DOWNWARD IN SAID TUBE AND UPWARD IN THE OTHER TO GENERATE HEAT IN CONTACT WITH THE FLOWS OF WATER FOR HEATING THE LATTER, AND MEANS TO DRAW THE HEATED WATER BACK TOWARD A POOL AFTER THE SAME LEAVES THE TUBES.
References Cited (Backward Citations)
US2696275A
Cited
FR345387A
Cited
US1527740A
Cited
US2249202A
Cited
US2327039A
Cited
US2543835A
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |