Patent US3138164A successfully refreshed from Google Patents.
US3146301A
Expired / Lapsed
US
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Spark discharge device
Assignee: Bendix Corp
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Filing: 1961-03-23
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Granted: 1964-08-25
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Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 James J Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:56
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A SPARK DISCHARGE DEVICE, A METAL SHELL PROVIDED WITH TWO LEGS DISPOSED GENERALLY AT AN ANGLE WITH RESPECT TO EACH OTHER, A CENTRAL CONDUCTOR DISPOSED WITHIN THE SHELL AND HAVING TWO INTERSECTING SUBSTANTIALLY RIGID RODLIKE LEGS, EACH WITHIN THE RESPECTIVE LEG OF THE SHELL, EXTENDING GENERALLY AT SAID ANGLE WITH RESPECT TO EACH OTHER, MEANS POSITIONING ONE LEG OF THE CONDUC TOR WITH RESPECT TO ITS RESPECTIVE LEG OF THE SHELL AND INSULATING IT THEREFROM, A CERAMIC INSULATING SLEEVE WITHIN THE OTHER LEG OF THE SHELL AND GENERALLY COAXIALLY SURROUNDING THE OTHER LEG OF THE CONDUCTOR, AND MEANS FOR POSITIONING THE OTHER LEG OF THE CONDUCTOR WITH RESPECT TO THE CERAMIC SLEEVE AND FOR SEALING IT THERETO, SAID LAST-NAMED MEANS COMPRISING A FLEXIBLE GAS IMPERMEABLE DIAPHRAGM SEALED AT ITS CENTRAL PORTION TO THE OTHER LEG OF THE CONDUCTOR AND SEALED AT ITS PERIPHERY TO THE CERAMIC SLEEVE.
Claim 2
Dependent Claim
148 words
IN A SPARK DISCHARGE DEVICE, A METAL SHELL PROVIDED WITH TWO LEGS DISPOSED GENERALLY AT AN ANGLE WITH RESPECT TO EACH OTHER, A CENTRAL CONDUCTOR DISPOSED WITHIN THE SHELL AND HAVING TWO INTERSECTING SUBSTANTIALLY RIGID RODLIKE LEGS, EACH WITHIN THE RESPECTIVE LEG OF THE SHELL, EXTENDING GENERALLY AT SAID ANGLE WITH RESPECT TO EACH OTHER, MEANS POSITIONING ONE LEG OF THE CONDUC TOR WITH RESPECT TO ITS RESPECTIVE LEG OF THE SHELL AND INSULATING IT THEREFROM, A CERAMIC INSULATING SLEEVE WITHIN THE OTHER LEG OF THE SHELL AND GENERALLY COAXIALLY SURROUNDING THE OTHER LEG OF THE CONDUCTOR, AND MEANS FOR POSITIONING THE OTHER LEG OF THE CONDUCTOR WITH RESPECT TO THE CERAMIC SLEEVE AND FOR SEALING IT THERETO, SAID LAST-NAMED MEANS COMPRISING A FLEXIBLE GAS IMPERMEABLE DIAPHRAGM SEALED AT ITS CENTRAL PORTION TO THE OTHER LEG OF THE CONDUCTOR AND SEALED AT ITS PERIPHERY TO THE CERAMIC SLEEVE.
References Cited (Backward Citations)
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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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |