Patent US3132279A successfully refreshed from Google Patents.
US3132279A
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Electrical discharge device
Assignee: Engelhard Hanovia Inc
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Filing: 1961-08-11
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Granted: 1964-05-05
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Lewin Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:34
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/044; H01J61/36; H01J61/361
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN ELECTRICAL DISCHARGE DEVICE COMPRISING A LIGHT TRANSMISSIVE ENVELOPE CONTAINING AN IONIZABLE ATMOSPHERE, A CONDUCTOR EXTENDING THROUGH THE ENVELOPE WALL INTO THE ENVELOPE, SAID CONDUCTOR COMPRISING A FIRST PORTION SEALED THROUGH THE ENVELOPE WALL AND A SECOND PORTION EXTENDING INTO THE ENVELOPE FROM THE FIRST PORTION WITH AN ELECTRODE ELEMENT ON THE INWARD END OF THE SECOND PORTION, THE CROSS-SECTIONAL AREA OF THE FIRST AND SECOND PORTIONS BEING SUBSTANTIALLY EQUAL, AND SAID FIRST PORTION BEING MADE OF MATERIAL HAVING HIGHER HEAT AND ELECTRICAL CONDUCTIVITY THAN THE SECOND PORTION WHEREBY THE SECOND PORTION HAS A STEEPER TEMPERATURE GRADIENT THAN THE FIRST PORTION.
Claim 2
Dependent Claim
101 words
AN ELECTRICAL DISCHARGE DEVICE COMPRISING A LIGHT TRANSMISSIVE ENVELOPE CONTAINING AN IONIZABLE ATMOSPHERE, A CONDUCTOR EXTENDING THROUGH THE ENVELOPE WALL INTO THE ENVELOPE, SAID CONDUCTOR COMPRISING A FIRST PORTION SEALED THROUGH THE ENVELOPE WALL AND A SECOND PORTION EXTENDING INTO THE ENVELOPE FROM THE FIRST PORTION WITH AN ELECTRODE ELEMENT ON THE INWARD END OF THE SECOND PORTION, THE CROSS-SECTIONAL AREA OF THE FIRST AND SECOND PORTIONS BEING SUBSTANTIALLY EQUAL, AND SAID FIRST PORTION BEING MADE OF MATERIAL HAVING HIGHER HEAT AND ELECTRICAL CONDUCTIVITY THAN THE SECOND PORTION WHEREBY THE SECOND PORTION HAS A STEEPER TEMPERATURE GRADIENT THAN THE FIRST PORTION.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |