US3241594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for vaporizing and burning fuel oil
Assignee: Individual
•
Filing: 1963-03-25
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Granted: 1966-03-22
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 David H Bottrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:28
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/02; F23C2700/026
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
154 words
A FURNACE FOR VAPORIZING AND BURNING FUEL OIL COMPRISING: A HEAT-RESISTANT COMBUSTION CHAMBER HAVING A FLOOR, A GENERALLY CYLINDRICAL SIDE WALL AND A ROOF HAVING AN AXIAL INLET OPENING THEREIN; A PASSAGEWAY EXTENDING THROUGH SAID SIDE WALL ADJACENT ITS UPPER END AND COMMUNICATING WITH AN EXHAUST PORT; A HOLLOW POROUS CYLINDER OF HEAT-RESISTANT MATERIAL COMMUNICATING WITH SAID INLET OPENING AND SUSPENDED FROM SAID ROOF SO THAT IT EXTENDS DOWNWARDLY ALONG THE AXIS OF THE COMBUSTION CHAMBER TO A POINT ADJACENT SAID FLOOR; MEANS FOR FEEDING OIL TO THE INTERIOR OF SAID CYLINDER AT ITS UPPER END SO THAT IT FLOWS DOWNWARDLY IN A FLIM OVER THE INNER SURFACE OF SAID CYLINDER; MEANS FOR SUPPLYING AIR FOR COMBUSTION TO THE COMBUSTION CHAMBER THROUGH SAID INLET OPENING SO THAT IT FLOWS THROUGH THE PORES IN SAID CYLINDER; AND MEANS FOR CAUSING HOT GASES AND PRODUCTS OF COMBUSTION TO FLOW FROM THE COMBUSTION CHAMBER THROUGH SAID PASSAGEWAY.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |