US3149222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical plasma-jet apparatus and method incorporating multiple electrodes
Assignee: Giannini Scientific Corp
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Filing: 1962-08-21
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Granted: 1964-09-15
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Expires: 1982-08-21
Abstract
No abstract record available.
Inventors
- 👤 Gabriel M Giannini
- 👤 Adriano C Ducati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:30
CPC Classifications
B; B23; B23K; B23K10/00; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34; H05H1/3484; H05H1/36; H05H1/28; H05H1/3452
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PLASMA APPARATUS, WHICH COMPRISES FIRS AND SECOND ELECTRODES MOUNTED IN SPACED INSULATED RELATIONSHIP, A THIRD ELECTRODE MOUNTED BETWEEN SAID FIRST AND SECOND ELECTRODES AND INSULATED THEREFROM, ORIFICE MEANS PROVIDED IN SAID THIRD ELECTRODE THROUGH WHICH PLASMA MAY PASS IN TRAVELING BETWEEN SAID FIRST AND SECOND ELECTRODES, MEANS TO GENERATE A HIGH-CURRENT ELECTRIC ARC BETWEEN EACH OF SAID ELECTRODES AND AT LEAST ONE OTHER ONE OF SAID ELECTRODES, AND MEANS TO EFFECT CONSTRICTION OF AT LEAST ONE OF SAID ELECTRIC ARCS TO A CROSS-SECTIONAL AREA SUBSTANTIALLY SMALLER THAN IT WOULD NORMALLY OCCUPY IN SPACE, THEREBY INCREASING THE CURRENT DENSITY AND TEMPERATURE THEREOF, SAID LAST-NAMED MEANS INCLUDING MEANS TO RAPIDLY CIRCULATE A FLUID VOTICALLY AROUND AT LEAST SAID ONE ARC TO THEREBY CONSTRICT THE SAME TO THE VORTEX IN SAID CIRCULATING FLUID.
Claim 2
Dependent Claim
131 words
A PLASMA APPARATUS, WHICH COMPRISES FIRS AND SECOND ELECTRODES MOUNTED IN SPACED INSULATED RELATIONSHIP, A THIRD ELECTRODE MOUNTED BETWEEN SAID FIRST AND SECOND ELECTRODES AND INSULATED THEREFROM, ORIFICE MEANS PROVIDED IN SAID THIRD ELECTRODE THROUGH WHICH PLASMA MAY PASS IN TRAVELING BETWEEN SAID FIRST AND SECOND ELECTRODES, MEANS TO GENERATE A HIGH-CURRENT ELECTRIC ARC BETWEEN EACH OF SAID ELECTRODES AND AT LEAST ONE OTHER ONE OF SAID ELECTRODES, AND MEANS TO EFFECT CONSTRICTION OF AT LEAST ONE OF SAID ELECTRIC ARCS TO A CROSS-SECTIONAL AREA SUBSTANTIALLY SMALLER THAN IT WOULD NORMALLY OCCUPY IN SPACE, THEREBY INCREASING THE CURRENT DENSITY AND TEMPERATURE THEREOF, SAID LAST-NAMED MEANS INCLUDING MEANS TO RAPIDLY CIRCULATE A FLUID VOTICALLY AROUND AT LEAST SAID ONE ARC TO THEREBY CONSTRICT THE SAME TO THE VORTEX IN SAID CIRCULATING FLUID.
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |