US3192427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma flame generator
Assignee: Hitachi Ltd
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Filing: 1962-06-19
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Granted: 1965-06-29
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Expires: 1982-06-19
Abstract
No abstract record available.
Inventors
- 👤 Sugawara Masao
- 👤 Yamamoto Manabu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:40
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PLASMA FLAME GENERATOR COMPRISING, IN COMBINATION, A ROD-SHAPED CATHOD; AN ANODE ENVELOPING SAID CATHODE LEAVING A SPACE THEREBETWEEN FOR THE FLOW OF INERT GAS AND FOR FACILITATING AN ELECTRICAL DISCHARGE; SAID ANODE EXTENDING ABOVE THE UPPER END OF SAID CATHODE AND NARROWING THEREABOVE; A NOZZLE FROMI/NG THE UPPER EXTREMITY OF SAID ANODE AND PROVIDED WITH AN ANNULAR GROOVE INTERMEDIATE BETWEEN SAID CATHODE AND THE OUTLET OF SAID NOZZLE; A SAMPLE FEEDING PASSAGE DISPOSED NEAR THE OUTLET OF SAID NOZZLE; AND AN INLET GAS NEAR THE LOWER END OF SAID ANODE.
Claim 2
Dependent Claim
91 words
A PLASMA FLAME GENERATOR COMPRISING, IN COMBINATION, A ROD-SHAPED CATHOD; AN ANODE ENVELOPING SAID CATHODE LEAVING A SPACE THEREBETWEEN FOR THE FLOW OF INERT GAS AND FOR FACILITATING AN ELECTRICAL DISCHARGE; SAID ANODE EXTENDING ABOVE THE UPPER END OF SAID CATHODE AND NARROWING THEREABOVE; A NOZZLE FROMI/NG THE UPPER EXTREMITY OF SAID ANODE AND PROVIDED WITH AN ANNULAR GROOVE INTERMEDIATE BETWEEN SAID CATHODE AND THE OUTLET OF SAID NOZZLE; A SAMPLE FEEDING PASSAGE DISPOSED NEAR THE OUTLET OF SAID NOZZLE; AND AN INLET GAS NEAR THE LOWER END OF SAID ANODE.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |