US3386665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas torch
Assignee: Veriflo Corp
•
Filing: 1966-05-31
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Granted: 1968-06-04
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Iozzi
- 👤 Rene A Zakhour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:17
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/38; F23D14/46; F23D14/48; F23D14/52; F23D14/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
A GAS TORCH, INCLUDING IN COMBINATION A TORCH HEAD HAVING A MAIN STEPPED OPENING PROVIDING A SERIES OF SUCCESSIVELY WIDER CYLINDRICAL RECESSES CONNECTED BY STEPS, EXTENDING FROM A DEAD END TO AN INTERIORLY THREADED OPEN END, SAID HEAD HAVING A FIRST PASSAGE FOR PREHEAT OXYGEN LEADING INTO SAID HEAD ADJACENT SAID DEAD END, AND A SECOND PASSAGE FOR FUEL GAS LEADING INTO A SUBSEQUENT RECESS, A MIXER ASSEMBLY IN SAID MAIN STEPPED OPENING, COMPRISING A STEPPED BODY PROVIDED WITH A FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS THEREIN AND PROVIDING SUCCESSIVELY WIDER CYLINDRICAL BODY PORTIONS JOINED BY SHOULDERS, SAID STEPPED BODY HAVING AN INNER END WALL SEATING AGAINST THE STEP IN SAID HEAD CLOSEST TO SAID DEAD END, ONE SAID SHOULDER BEING SPACED FROM ONE SAID STEP TO PROVIDE AN ANNULAR RECESS FOR RECEIVING HIGH-PRESSURE OXYGEN, SAID MIXER ASSEMBLY HAVING A RADIAL PASSAGE CONNECTING SAID SECOND PASSAGE TO SAID FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS, FOR MIXING OF SAID FUEL GAS AND SAID PREHEAT OXYGEN, SAID MIXER ALSO HAVING MIXING MEANS THEREFOR IN SAID FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS SAID FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS BRANCHING INTO ANNULARLY DISTRIBUTED AXIALLY EXTENDING PASSAGE MEANS DOWNSTREAM OF SAID MIXING MEANS, SAID MIXER FURTHER HAVING A SECOND CENTRAL AXIAL PASSAGE SEPARATED FROM SAID ANNULARLY DISTRIBUTED AXIALLY EXTENDING PASSAGE MEANS, WHICH LIE RADIALLY OUTWARDLY THEREFROM AT THAT LOCATION, AND
Claim 2
Dependent Claim
226 words
A GAS TORCH, INCLUDING IN COMBINATION A TORCH HEAD HAVING A MAIN STEPPED OPENING PROVIDING A SERIES OF SUCCESSIVELY WIDER CYLINDRICAL RECESSES CONNECTED BY STEPS, EXTENDING FROM A DEAD END TO AN INTERIORLY THREADED OPEN END, SAID HEAD HAVING A FIRST PASSAGE FOR PREHEAT OXYGEN LEADING INTO SAID HEAD ADJACENT SAID DEAD END, AND A SECOND PASSAGE FOR FUEL GAS LEADING INTO A SUBSEQUENT RECESS, A MIXER ASSEMBLY IN SAID MAIN STEPPED OPENING, COMPRISING A STEPPED BODY PROVIDED WITH A FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS THEREIN AND PROVIDING SUCCESSIVELY WIDER CYLINDRICAL BODY PORTIONS JOINED BY SHOULDERS, SAID STEPPED BODY HAVING AN INNER END WALL SEATING AGAINST THE STEP IN SAID HEAD CLOSEST TO SAID DEAD END, ONE SAID SHOULDER BEING SPACED FROM ONE SAID STEP TO PROVIDE AN ANNULAR RECESS FOR RECEIVING HIGH-PRESSURE OXYGEN, SAID MIXER ASSEMBLY HAVING A RADIAL PASSAGE CONNECTING SAID SECOND PASSAGE TO SAID FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS, FOR MIXING OF SAID FUEL GAS AND SAID PREHEAT OXYGEN, SAID MIXER ALSO HAVING MIXING MEANS THEREFOR IN SAID FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS SAID FIRST CENTRAL AXIALLY EXTENDING PASSAGE MEANS BRANCHING INTO ANNULARLY DISTRIBUTED AXIALLY EXTENDING PASSAGE MEANS DOWNSTREAM OF SAID MIXING MEANS, SAID MIXER FURTHER HAVING A SECOND CENTRAL AXIAL PASSAGE SEPARATED FROM SAID ANNULARLY DISTRIBUTED AXIALLY EXTENDING PASSAGE MEANS, WHICH LIE RADIALLY OUTWARDLY THEREFROM AT THAT LOCATION, AND
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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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |