US3344834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for partial combustion of hydrocarbon fuels
Assignee: United States Steel Corp
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Filing: 1965-05-26
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Granted: 1967-10-03
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Expires: 1985-05-26
Abstract
No abstract record available.
Inventors
- 👤 Feinman Jerome
- 👤 David A Muskat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:55
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C01B3/363; C21; C21B; C21B5/00; C21B5/001; F23D11/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
APPARATUS FOR PARTIALLY COMBUSTING NON-GASEOUS HYDROCARBON FUEL COMPRISING A TUBULAR MEMBER HAVING AN ENTRY AND EXIT END, SAID TUBULAR MEMBER HAVING A SUBSTANTIALLY CONSTANT INSIDE DIAMETER FOR THE MAJORITY OF ITS LENGTH; A NOZZLE WITHIN SAID TUBULAR MEMBER ADJACENT ITS EXIT END, SAID NOZZLE INCLUDING AN OUTER CYLINDRICAL PORTION CLOSELY FITTING THE INSIDE OF SAID TUBULAR MEMBER, SAID CYLINDRICAL PORTION HAVING AT LEAST FOUR SPIRAL GROOVES THEREIN EQUALLY SPACED AROUND ITS PERIPHERY AND EACH HAVING AN OPENING AT EACH END INTO THE INSIDE OF SAID TUBULAR MEMBER, AND A BURNER TIP AT ITS EXIT END OF LESS DIAMETER THAN THE INSIDE OF SAID TUBULAR MEMBER, SAID NOZZLE INCLUDING A CENTRAL AXIAL PASSAGEWAY FOR SAID FUEL AND MEANS FOR DELIVERING AN OXYGEN CONTAINING GAS AROUND SAID PASSAGEWAY; MEANS WITHIN SAID TUBULAR MEMBER FOR SEPARATELY DELIVERING FUEL AND OXYGEN CONTAINING GAS TO SAID NOZZLE, AND MEANS FOR INTRODUCING OXYGEN INTO SAID TUBULAR MEMBER AND INTO SAID SPIRAL GROOVES.
Claim 2
Dependent Claim
156 words
APPARATUS FOR PARTIALLY COMBUSTING NON-GASEOUS HYDROCARBON FUEL COMPRISING A TUBULAR MEMBER HAVING AN ENTRY AND EXIT END, SAID TUBULAR MEMBER HAVING A SUBSTANTIALLY CONSTANT INSIDE DIAMETER FOR THE MAJORITY OF ITS LENGTH; A NOZZLE WITHIN SAID TUBULAR MEMBER ADJACENT ITS EXIT END, SAID NOZZLE INCLUDING AN OUTER CYLINDRICAL PORTION CLOSELY FITTING THE INSIDE OF SAID TUBULAR MEMBER, SAID CYLINDRICAL PORTION HAVING AT LEAST FOUR SPIRAL GROOVES THEREIN EQUALLY SPACED AROUND ITS PERIPHERY AND EACH HAVING AN OPENING AT EACH END INTO THE INSIDE OF SAID TUBULAR MEMBER, AND A BURNER TIP AT ITS EXIT END OF LESS DIAMETER THAN THE INSIDE OF SAID TUBULAR MEMBER, SAID NOZZLE INCLUDING A CENTRAL AXIAL PASSAGEWAY FOR SAID FUEL AND MEANS FOR DELIVERING AN OXYGEN CONTAINING GAS AROUND SAID PASSAGEWAY; MEANS WITHIN SAID TUBULAR MEMBER FOR SEPARATELY DELIVERING FUEL AND OXYGEN CONTAINING GAS TO SAID NOZZLE, AND MEANS FOR INTRODUCING OXYGEN INTO SAID TUBULAR MEMBER AND INTO SAID SPIRAL GROOVES.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |