US3296826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating shaft
Assignee: High Voltage Engineering Corp
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Filing: 1966-03-04
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Granted: 1967-01-10
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Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 Graaff Robert J Van De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:49
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/02; H01B17/12; F; F16; F16L; F16L59/00; F16L59/04; Y; Y10; Y10S; Y10S464/00; Y10S464/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN INSULATING SHAFT FOR THE TRANSMISSION OF MECHANICAL FORCE BETWEEN REGIONS HAVING SUBSTANTIALLY DIFFERENT ELECTRICAL POTENTIALS COMPRISING SOLID METAL END PORTIONS, A MULTIPLICITY OF ALTERNATING DISHED CONDUCTIVE MEMBERS AND CORRESPONDINGLY DISHED INSULATING MEMBERS IN NESTING RELATIONSHIP BETWEEN SAID END PORTIONS, MEANS SECURING SAID CONDUCTIVE MEMBERS, INSULATING MEMBERS, AND END PORTIONS TOGETHER TO FORM A SUBSTANTIALLY RIGID SHAFT, SAID CONDUCTIVE MEMBERS BEING MUCH MORE RIGID THAN SAID INSULATING MEMBERS.
Claim 2
Dependent Claim
68 words
AN INSULATING SHAFT FOR THE TRANSMISSION OF MECHANICAL FORCE BETWEEN REGIONS HAVING SUBSTANTIALLY DIFFERENT ELECTRICAL POTENTIALS COMPRISING SOLID METAL END PORTIONS, A MULTIPLICITY OF ALTERNATING DISHED CONDUCTIVE MEMBERS AND CORRESPONDINGLY DISHED INSULATING MEMBERS IN NESTING RELATIONSHIP BETWEEN SAID END PORTIONS, MEANS SECURING SAID CONDUCTIVE MEMBERS, INSULATING MEMBERS, AND END PORTIONS TOGETHER TO FORM A SUBSTANTIALLY RIGID SHAFT, SAID CONDUCTIVE MEMBERS BEING MUCH MORE RIGID THAN SAID INSULATING MEMBERS.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |