US3556700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner unit
Assignee: VANN IND Inc
•
Filing: 1968-12-17
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Granted: 1971-01-19
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Expires: 1988-12-17
Abstract
Abstract A BURNER UNIT COMPRISING MEANS DEFINING A COMBUSTION ZONE, MEANS FOR SUPPLING AIR UNDER PRESSURE TO THE COMBUSTION ZONE, THE AIR SUPPLY MEANS HAVING MEANS OPERATIVE TO REGULATE THE AIR INTAKE THEREOF, MEANS FOR SUPPLYING FUEL UNDER PRESSURE TO THE COMBUSTION ZONE TO PROVIDE A FUEL-AIR MIXTURE, THE FUEL SUPPLY OF FUEL TO THE MEANS OPERATIVE TO REGULATE THE SUPPLY OF FUEL TO THE COMBUSTION ZONE, ACTUATING MEANS OPERATIVELY INTERCONNECTING THE AIR INTAKE REGULATING MEANS AND THE FUEL SUPPLY REGULATING MEANS MOVABLE BETWEEN PREDETERMINED LIMITS TO ACTUATE SAID REGULATING MEANS, AND MEANS DISPOSED IN THE COMBUSTION ZONE FOR IGNITING THE FUEL-AIR MIXTURE.
Inventors
- 👤 Walter F Jackson
- 👤 James F Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |