US3321703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for testing a dielectric material in the presence of a gas by moving the material with a sufficient velocity to ionize the gas
Assignee: Nortel Networks Ltd
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Filing: 1963-12-09
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Granted: 1967-05-23
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Tyszewicz Wieslaw Jozef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:15
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD OF TESTING DIELECTRIC MATERIAL BY MAKING ELECTRICAL CONTACT WITH AT LEAST ONE SURFACE OF OPPOSITE SURFACES OF THE DIELECTRIC MATERIAL IN THE PRESENCE OF A GAS WHICH COMPRISES ADVANCING SAID MATERIAL BETWEEN A PAIR OF OPPOSITELY DISPOSED ELECTRODES SO THAT EACH OF SAID OPPOSITE SURFACES IS IN JUXTAPOSITION WITH ONE OF SAID ELECTRODES AND THE DIELECTRIC MATERIAL SHIELDS THE PAIR OF OPPOSITELY DISPOSED ELECTRODES ONE FROM THE OTHER SO AS TO PREVENT DIRECT CONDUCTION THEREBETWEEN IN THE ABSENCE OF A FAULT, MAINTAINING SAID ONE SURFACE OF SAID MATERIAL SPACED FROM ITS ADJACENT ELECTRODE, APPLYING A VOLTAGE BETWEEN SAID ELECTRODES, ADVANCING SAID MATERIAL WITH SUFFICIENT VELOCITY, ADJUSTING THE AMPLITUDE OF THE VOLTAGE TO BE SUFFICIENT RELATIVE TO THE VELOCITY OF THE MATERIAL TO IONIZE THE GAS BETWEEN SAID ONE SURFACE AND SAID ADJACENT ELECTRODE, AND MONITORING THE CURRENT FLOW TO AT LEAST ONE OF SAID ELECTRODES FOR DETECTING THE OCCURRENCE OF FAULTS IN SAID MATERIAL.
Claim 2
Independent Claim
156 words
A METHOD OF TESTING DIELECTRIC MATERIAL BY MAKING ELECTRICAL CONTACT WITH AT LEAST ONE SURFACE OF OPPOSITE SURFACES OF THE DIELECTRIC MATERIAL IN THE PRESENCE OF A GAS WHICH COMPRISES ADVANCING SAID MATERIAL BETWEEN A PAIR OF OPPOSITELY DISPOSED ELECTRODES SO THAT EACH OF SAID OPPOSITE SURFACES IS IN JUXTAPOSITION WITH ONE OF SAID ELECTRODES AND THE DIELECTRIC MATERIAL SHIELDS THE PAIR OF OPPOSITELY DISPOSED ELECTRODES ONE FROM THE OTHER SO AS TO PREVENT DIRECT CONDUCTION THEREBETWEEN IN THE ABSENCE OF A FAULT, MAINTAINING SAID ONE SURFACE OF SAID MATERIAL SPACED FROM ITS ADJACENT ELECTRODE, APPLYING A VOLTAGE BETWEEN SAID ELECTRODES, ADVANCING SAID MATERIAL WITH SUFFICIENT VELOCITY, ADJUSTING THE AMPLITUDE OF THE VOLTAGE TO BE SUFFICIENT RELATIVE TO THE VELOCITY OF THE MATERIAL TO IONIZE THE GAS BETWEEN SAID ONE SURFACE AND SAID ADJACENT ELECTRODE, AND MONITORING THE CURRENT FLOW TO AT LEAST ONE OF SAID ELECTRODES FOR DETECTING THE OCCURRENCE OF FAULTS IN SAID MATERIAL.
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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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |