Patent US3219024A successfully refreshed from Google Patents.
US3219024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forced draft solid carbon fuel burning heater
Assignee: Z Z CORP
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Filing: 1963-09-23
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Granted: 1965-11-23
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Hottenroth
- 👤 Harry D Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:27
CPC Classifications
F; F23; F23B; F23B1/00; F23B2700/00; F23B2700/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A HEATER OF THE CHARACTER DESCRIBED, A SUBSTANTIALLY VERTICAL RADIANT HEATING PLATE, MEANS FOR HEATING SAID PLATE COMPRISING A COMBUSTION CHAMBER ASSOCIATED WITH SAID PLATE IN SUCH MANNER THAT SAID PLATE FORMS AN EXPOSED OUTER FRONT WALL OF SAID COMBUSTION CHAMBER, SAID COMBUSTION CHAMBER BEING ADAPTED TO BE PARTLY FILLED WITH SOLID CARBON FUEL, SAID COMBUSTION CHAMBER HAVING OPENINGS IN THE BOTTOM THEREOF, A SECONDARY JACKET AROUND THE OUTSIDE OF SAID COMBUSTION CHAMBER, A PRIMARY JACKET AROUND THE OUTSIDE OF SAID SECONDARY JACKET, SAID SECONDARY JACKET HAVING A PORTION SPACED FROM SAID PRIMARY JACKET TO FORM A PREHEATING CHAMBER, MEANS FOR FORCING AIR THROUGH SAID PRIMARY JACKET AND THEN THROUGH SAID SECONDARY JACKET AND FROM SAID SECONDARY JACKET INTO SAID COMBUSTION CHAMBER THROUGH SAID OPENINGS IN THE BOTTOM THEREOF, AND MEANS FOR CONDUCTING THE GASES OF COMBUSTION FROM THE TOP OF SAID COMBUSTION CHAMBER THROUGH SAID PREHEATING CHAMBER FOR PREHEATING AIR IN BOTH JACKETS.
Claim 2
Dependent Claim
155 words
IN A HEATER OF THE CHARACTER DESCRIBED, A SUBSTANTIALLY VERTICAL RADIANT HEATING PLATE, MEANS FOR HEATING SAID PLATE COMPRISING A COMBUSTION CHAMBER ASSOCIATED WITH SAID PLATE IN SUCH MANNER THAT SAID PLATE FORMS AN EXPOSED OUTER FRONT WALL OF SAID COMBUSTION CHAMBER, SAID COMBUSTION CHAMBER BEING ADAPTED TO BE PARTLY FILLED WITH SOLID CARBON FUEL, SAID COMBUSTION CHAMBER HAVING OPENINGS IN THE BOTTOM THEREOF, A SECONDARY JACKET AROUND THE OUTSIDE OF SAID COMBUSTION CHAMBER, A PRIMARY JACKET AROUND THE OUTSIDE OF SAID SECONDARY JACKET, SAID SECONDARY JACKET HAVING A PORTION SPACED FROM SAID PRIMARY JACKET TO FORM A PREHEATING CHAMBER, MEANS FOR FORCING AIR THROUGH SAID PRIMARY JACKET AND THEN THROUGH SAID SECONDARY JACKET AND FROM SAID SECONDARY JACKET INTO SAID COMBUSTION CHAMBER THROUGH SAID OPENINGS IN THE BOTTOM THEREOF, AND MEANS FOR CONDUCTING THE GASES OF COMBUSTION FROM THE TOP OF SAID COMBUSTION CHAMBER THROUGH SAID PREHEATING CHAMBER FOR PREHEATING AIR IN BOTH JACKETS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |