US3231431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Post-mixed fuel gas preheat scarfing
Assignee: Union Carbide Corp
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Filing: 1964-06-24
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Granted: 1966-01-25
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Expires: 1984-06-24
Abstract
No abstract record available.
Inventors
- 👤 Allmang William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:14
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/06; Y; Y10; Y10S; Y10S239/00; Y10S239/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A PROCESS OF THERMOCHEMICALLY SCARFING A METAL BODY BY DISCHARGING A SHEET-LIKE STREAM OF OXIDIZING GAS ONTO A REACTION ZONE EXTENDING ACROSS THE METAL BODY AND AT AN ACUTE OF IMPINGEMENT TO THE WORK SURFACE THEREOF, AND WHEREIN FUEL GAS IS DISCHARGED FROM ORIFICE MEANS AND DIRECTED AGAINST AT LEAST ONE SIDE OF SAID STREAM OF OXIDIZING GAS, THE IMPROVEMENT WHICH COMPRISES SHIELDING THE EFFLUENT FUEL GAS FROM ITS POINT OF DISCHARGE TO PREVENT ASPIRATION OF ATMOSPHERE AIR THEREINTO IMMEDIATELY ADJACENT SAID POINT OF DISCHARGE BY A BAFFLE SURFACE EXTENDING FORWARDLY FROM IMMEDIATELY ADJACENT THE POINT OF DISCHARGE TOWARD THE REACTION ZONE WHEREBY A STABLE POST-MIXED FUEL GAS-OXIDIZING GAS PREHEAT FLAME WILL BE MAINTAINED.
Claim 2
Dependent Claim
115 words
IN A PROCESS OF THERMOCHEMICALLY SCARFING A METAL BODY BY DISCHARGING A SHEET-LIKE STREAM OF OXIDIZING GAS ONTO A REACTION ZONE EXTENDING ACROSS THE METAL BODY AND AT AN ACUTE OF IMPINGEMENT TO THE WORK SURFACE THEREOF, AND WHEREIN FUEL GAS IS DISCHARGED FROM ORIFICE MEANS AND DIRECTED AGAINST AT LEAST ONE SIDE OF SAID STREAM OF OXIDIZING GAS, THE IMPROVEMENT WHICH COMPRISES SHIELDING THE EFFLUENT FUEL GAS FROM ITS POINT OF DISCHARGE TO PREVENT ASPIRATION OF ATMOSPHERE AIR THEREINTO IMMEDIATELY ADJACENT SAID POINT OF DISCHARGE BY A BAFFLE SURFACE EXTENDING FORWARDLY FROM IMMEDIATELY ADJACENT THE POINT OF DISCHARGE TOWARD THE REACTION ZONE WHEREBY A STABLE POST-MIXED FUEL GAS-OXIDIZING GAS PREHEAT FLAME WILL BE MAINTAINED.
References Cited (Backward Citations)
US2058388A
Cited
US2680608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |