Patent US3282573A successfully refreshed from Google Patents.
Patent US3106633A successfully refreshed from Google Patents.
US3106633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc torch device
Assignee: Union Carbide Corp
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Filing: 1961-04-21
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Granted: 1963-10-08
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Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 George M Skinner
- 👤 Richard C Eschenbach
- 👤 Robert J Wickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:28
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34; H05H1/3478; H05H1/3484
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
AN ELECTRIC ARC GAS HEATER COMPRISING IN COMBINATION AN ELECTRODE, A GAS CUP SUPPORTING SAID ELECTRODE, MEANS FOR SUPPLYING A COOLANT TO SAID GAS CUP, A PLURALITY OF GAS PASSAGES IN SAID GAS CUP, MEANS FOR SUPPLYING SHIELDING GAS TO SAID GAS PASSAGES FOR FLOW ALONG SAID ELECTRODE TO PROTECT SUCH ELECTRODE FROM CHEMICAL ATTACK AND ELECTRICAL EROSION, AN OUTER CASING SURROUNDING SAID ELECTRODE AND GAS CUP IN SPACED CONCENTRIC RELATION, MEANS FOR SUPPLYING GAS UNDER PRESSURE TO THE ANNULAR SPACE FORMED THEREBETWEEN, AN INSULATOR IN SAID ANNULAR SPACED BETWEEN SAID CASING AND SAID ELECTRODE AND GAS CUP AND BEING PROVIDED WITH NOZZLE MEANS FOR SUPPLYING GAS UNDER PRESSURE TO THE VICINITY OF SAID ELECTRODE, A FRONT SECTION CARRIED BY SAID OUTER CASING AND HAVING AN INTERNAL CONICAL PASSAGE SURROUNDING SAID ELECTRODE AND GAS CUP AND COMMUNICATING WITH SAID NOZZLE MEANS TO GIVE STREAMLINE FLOW TO SAID GAS UNDER PRESSURE AS IT APPROACHES THE VICINITY OF SAID ELECTRODE, A NOZZLE ELECTRODE CARRIED BY SAID FRONT SECTION AND SPACED FROM AND IN AXIAL ALIGNMENT WITH SAID ELECTRODE AND HAVING A GAS OUTLET COMPRISING A THROAT LEADING TO AN EXPANSION PAS-
Claim 2
Dependent Claim
189 words
AN ELECTRIC ARC GAS HEATER COMPRISING IN COMBINATION AN ELECTRODE, A GAS CUP SUPPORTING SAID ELECTRODE, MEANS FOR SUPPLYING A COOLANT TO SAID GAS CUP, A PLURALITY OF GAS PASSAGES IN SAID GAS CUP, MEANS FOR SUPPLYING SHIELDING GAS TO SAID GAS PASSAGES FOR FLOW ALONG SAID ELECTRODE TO PROTECT SUCH ELECTRODE FROM CHEMICAL ATTACK AND ELECTRICAL EROSION, AN OUTER CASING SURROUNDING SAID ELECTRODE AND GAS CUP IN SPACED CONCENTRIC RELATION, MEANS FOR SUPPLYING GAS UNDER PRESSURE TO THE ANNULAR SPACE FORMED THEREBETWEEN, AN INSULATOR IN SAID ANNULAR SPACED BETWEEN SAID CASING AND SAID ELECTRODE AND GAS CUP AND BEING PROVIDED WITH NOZZLE MEANS FOR SUPPLYING GAS UNDER PRESSURE TO THE VICINITY OF SAID ELECTRODE, A FRONT SECTION CARRIED BY SAID OUTER CASING AND HAVING AN INTERNAL CONICAL PASSAGE SURROUNDING SAID ELECTRODE AND GAS CUP AND COMMUNICATING WITH SAID NOZZLE MEANS TO GIVE STREAMLINE FLOW TO SAID GAS UNDER PRESSURE AS IT APPROACHES THE VICINITY OF SAID ELECTRODE, A NOZZLE ELECTRODE CARRIED BY SAID FRONT SECTION AND SPACED FROM AND IN AXIAL ALIGNMENT WITH SAID ELECTRODE AND HAVING A GAS OUTLET COMPRISING A THROAT LEADING TO AN EXPANSION PAS-
References Cited (Backward Citations)
US1002721A
Cited
US2890322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |