Patent US6329263B1 successfully refreshed from Google Patents.
Patent US3720189A successfully refreshed from Google Patents.
US3720189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater and hot water boiler
Assignee: Individual
•
Filing: 1971-04-09
•
Granted: 1973-03-13
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Expires: 1991-04-09
Abstract
Abstract A pump connected to a boiler with cylindrical baffles encircled by coils and a heater unit encircled by hot air from the boiler and also surrounded by water heated from the boiler.
Inventors
- 👤 R Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:38
CPC Classifications
F; F24; F24D; F24D3/00; F24D3/08; F24D3/082
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
A heater, comprising a source of water, first means connected to said source, second means encircled by said first means and being in fluid communication with said first means, a heat source located below said first means and said second means, an outlet extending from said second means for supplying water heated by said burner, a chamber in which said burner, said first means, and said second means are enclosed causing hot air to congregate about said first means heating the water therein, third means in fluid communication with said chamber for receiving heated air therefrom, fourth means surrounded by said third means and in controlled fluid communication with said outlet, and a cylindrical tank within said fourth means for the recirculation of water to be heated.
Claim 2
Dependent Claim
127 words
A heater, comprising a source of water, first means connected to said source, second means encircled by said first means and being in fluid communication with said first means, a heat source located below said first means and said second means, an outlet extending from said second means for supplying water heated by said burner, a chamber in which said burner, said first means, and said second means are enclosed causing hot air to congregate about said first means heating the water therein, third means in fluid communication with said chamber for receiving heated air therefrom, fourth means surrounded by said third means and in controlled fluid communication with said outlet, and a cylindrical tank within said fourth means for the recirculation of water to be heated.
Claim 3
Dependent Claim
127 words
A heater, comprising a source of water, first means connected to said source, second means encircled by said first means and being in fluid communication with said first means, a heat source located below said first means and said second means, an outlet extending from said second means for supplying water heated by said burner, a chamber in which said burner, said first means, and said second means are enclosed causing hot air to congregate about said first means heating the water therein, third means in fluid communication with said chamber for receiving heated air therefrom, fourth means surrounded by said third means and in controlled fluid communication with said outlet, and a cylindrical tank within said fourth means for the recirculation of water to be heated.
Claim 4
Dependent Claim
127 words
A heater, comprising a source of water, first means connected to said source, second means encircled by said first means and being in fluid communication with said first means, a heat source located below said first means and said second means, an outlet extending from said second means for supplying water heated by said burner, a chamber in which said burner, said first means, and said second means are enclosed causing hot air to congregate about said first means heating the water therein, third means in fluid communication with said chamber for receiving heated air therefrom, fourth means surrounded by said third means and in controlled fluid communication with said outlet, and a cylindrical tank within said fourth means for the recirculation of water to be heated.
References Cited (Backward Citations)
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Cited
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US1607034A
Cited
US1704788A
Cited
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Cited
US3398721A
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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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |