Patent US3226593A successfully refreshed from Google Patents.
US3226593A
Expired / Lapsed
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Excess-voltage protective device
Assignee: Individual
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Filing: 1964-01-28
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Granted: 1965-12-28
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Expires: 1984-01-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Pittman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:02
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/02; H01T1/08; H01T1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN EXCESS-VOLTAGE PROTECTIVE DEVICE COMPRISING: A TUBULAR STRUCTURE OF INSULATING MATERIAL HAVING ASSOCIATED THEREWITH ONLY TWO SPACED CONDUCTING ELECTRODES, SAID ELECTRODES BEING DISPOSED AT THE RESPECTIVE ENDS OF SAID TUBULAR STRUCTURE, AT LEAST ONE OF SAID ELECTRODE EXTENDING PARTWAY INTO SAID TUBULAR STRUCTURE TO ASSURE THAT SPARKOVER BETWEEN SAID ELECTRODES WILL OCCUR OVER A NONPREDETERMINED PATH ALONG AND WITHIN SAID TUBULAR STRUCTURE, AND A FILLER OF INSULATING MATERIAL EXTENDING LONGITUDINALLY BETWEEN SAID ELECTRODES WITHIN SAID TUBULAR STRUCTURE AND PARTIALLY FILLING THE OPENING THEREIN, SAID FILLER INCLUDING A PLURALITY OF CYLINDRICAL SECTIONS ARRANGED IN ABUTTING END-TO-END RELATIONSHIP, THE ABUTTING ENDS OF SAID SECTIONS BEING BEVELED TO PROVIDE A PLURALITY OF ANGULARLY DISPLACED, LONGITUDINALLY EXTENDING, DISCONTINUOUS LINES OF ABOUTMENT ALONG ADJACENT SECTIONS OF SAID FILLER WITH THE INNER SURFACE OF SAID TUBULAR STRUCTURE WHICH ARE CIRCUMFERENTIALLY DISPLACED ABOUT THE AXIS OF SAID TUBULR STRUCTURE BY AN ANGLE LESS THAN 180 DEGREES.
Claim 2
Dependent Claim
149 words
AN EXCESS-VOLTAGE PROTECTIVE DEVICE COMPRISING: A TUBULAR STRUCTURE OF INSULATING MATERIAL HAVING ASSOCIATED THEREWITH ONLY TWO SPACED CONDUCTING ELECTRODES, SAID ELECTRODES BEING DISPOSED AT THE RESPECTIVE ENDS OF SAID TUBULAR STRUCTURE, AT LEAST ONE OF SAID ELECTRODE EXTENDING PARTWAY INTO SAID TUBULAR STRUCTURE TO ASSURE THAT SPARKOVER BETWEEN SAID ELECTRODES WILL OCCUR OVER A NONPREDETERMINED PATH ALONG AND WITHIN SAID TUBULAR STRUCTURE, AND A FILLER OF INSULATING MATERIAL EXTENDING LONGITUDINALLY BETWEEN SAID ELECTRODES WITHIN SAID TUBULAR STRUCTURE AND PARTIALLY FILLING THE OPENING THEREIN, SAID FILLER INCLUDING A PLURALITY OF CYLINDRICAL SECTIONS ARRANGED IN ABUTTING END-TO-END RELATIONSHIP, THE ABUTTING ENDS OF SAID SECTIONS BEING BEVELED TO PROVIDE A PLURALITY OF ANGULARLY DISPLACED, LONGITUDINALLY EXTENDING, DISCONTINUOUS LINES OF ABOUTMENT ALONG ADJACENT SECTIONS OF SAID FILLER WITH THE INNER SURFACE OF SAID TUBULAR STRUCTURE WHICH ARE CIRCUMFERENTIALLY DISPLACED ABOUT THE AXIS OF SAID TUBULR STRUCTURE BY AN ANGLE LESS THAN 180 DEGREES.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |