Patent US3331982A successfully refreshed from Google Patents.
US3331982A
Expired / Lapsed
US
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High pressure electric discharge device having a fill including vanadium
Assignee: GTE Sylvania Inc
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Filing: 1964-10-20
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Granted: 1967-07-18
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Expires: 1984-10-20
Abstract
No abstract record available.
Inventors
- 👤 John F Waymouth
- 👤 Koury Frederic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:25
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A HIGH PRESSURE ELECTRIC DISCHARGE DEVICE COMPRISING: AN ARC TUBE HAVING SEALED ENDS AND ELECTRODES DISPOSED IN SAID ENDS; MEANS TO CONVEY ELECTRICAL ENERGY TO EACH OF SAID ELECTRODES, WHEREBY AN ARC CAN FORM THEREBETWEEN; MERCURY AND VANADIUM ATOMS DISPOSED IN SAID ARC TUBE, SAID MERCURY BEING IN SUFFICIENT QUANTITIES TO BE COMPLETELY VAPORIZED AT NORMAL OPERATING TEMPERATURES OF SAID ARC TUBE AND TO FORM A RESTRICTED ARC THEREIN; ATOMS OF AT LEAST ONE HALOGEN SELECTED FROM THE GROUP CONSISTING OF IODINE, CHLORINE, BROMINE DISPOSED IN SAID ARC TUBE, SAID HALOGEN AND SAID MERCURY BEING PRESENT THEREIN AT AN ATOMIC RATIO OF HALOGEN TO MERCURY BETWEEN 0.025 AND 0.65 SAID VANADIUM ATOMS BEING PRESENT IN THE VAPOR STATE, WHEN SAID DEVICE IS OPERATING, IN SUFFICIENT QUANTITIES TO CONTRIBUTE TO THE SPECTRUM OF THE ARC.
Claim 2
Dependent Claim
134 words
A HIGH PRESSURE ELECTRIC DISCHARGE DEVICE COMPRISING: AN ARC TUBE HAVING SEALED ENDS AND ELECTRODES DISPOSED IN SAID ENDS; MEANS TO CONVEY ELECTRICAL ENERGY TO EACH OF SAID ELECTRODES, WHEREBY AN ARC CAN FORM THEREBETWEEN; MERCURY AND VANADIUM ATOMS DISPOSED IN SAID ARC TUBE, SAID MERCURY BEING IN SUFFICIENT QUANTITIES TO BE COMPLETELY VAPORIZED AT NORMAL OPERATING TEMPERATURES OF SAID ARC TUBE AND TO FORM A RESTRICTED ARC THEREIN; ATOMS OF AT LEAST ONE HALOGEN SELECTED FROM THE GROUP CONSISTING OF IODINE, CHLORINE, BROMINE DISPOSED IN SAID ARC TUBE, SAID HALOGEN AND SAID MERCURY BEING PRESENT THEREIN AT AN ATOMIC RATIO OF HALOGEN TO MERCURY BETWEEN 0.025 AND 0.65 SAID VANADIUM ATOMS BEING PRESENT IN THE VAPOR STATE, WHEN SAID DEVICE IS OPERATING, IN SUFFICIENT QUANTITIES TO CONTRIBUTE TO THE SPECTRUM OF THE ARC.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |