US3135314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple fuel firing method and apparatus
Assignee: Sulzer AG
•
Filing: 1960-12-14
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Granted: 1964-06-02
•
Expires: 1980-12-14
Abstract
No abstract record available.
Inventors
- 👤 Brunner Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
A COMBUSTION APPARATUS FOR FIRING A BASIC FUEL WHICH IS AVAILABLE IN VARIABLE AMOUNTS AND MUST BE CONSUMED AT RATES CORRESPONDING TO THE AMOUNTS AT WHICH THE BASIC FUEL IS AVAILABLE, AND FOR FIRING AT LEAST ONE DIFFERENT KIND OF FUEL, COMPRISING: A PLURALITY OF BURNER UNITS, EACH UNIT COMPRISING A BURNER FOR EACH KIND OF FUEL, AN APPARATUS CONNECTED TO THE BURNERS OF EACH UNIT FOR ADMITTING FUEL TO ONE SELECTED BURNER AT A TIME OF THE RESPECTIVE UNIT WHILE STOPPING FUEL ADMISSION TO THE OTHER BURNER OF THE UNIT, SEPARATE DISTRIBUTING MEANS FOR EACH KIND OF FUEL CONNECTED TO SAID UNITS, A SUPPLY CONDUIT FOR THE BASIC FUEL CONNECTED TO THE DISTRIBUTING MEANS FOR THE BASIC FUEL, AND
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US2354999A
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US2403230A
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US2635813A
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |