US3319035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker with sealing means for handle opening
Assignee: Westinghouse Electric Corp
•
Filing: 1966-03-04
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Granted: 1967-05-09
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Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 Francis L Gelzheiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:18
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/52; H01H71/521; H01H21/00; H01H21/02; H01H21/04; H01H21/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A CIRCUIT BREAKER COMPRISING A HOUSING FORMED FROM ELECTRICALLY INSULATING MATERIAL HAVING AN OPENING THEREIN FOR RECEIVING A HANDLE, A SLIDE DISPOSED ADJACENT TO THE OPENING INSIDE THE HOUSING FOR AT ALL TIMES SUBSTANTIALLY CLOSING THE OPENING, AN OPERATING HANDLE SECURED TO THE SLIDE AND EXTENDING THROUGH THE OPENING FOR OPERATING THE SLIDE, AND A RELATIVELY THIN, RESILIENT FIN FORMED INTEGRALLY WITH THE HOUSING AROUND THE PERIPHERY OF THE OPENING TO BEAR AGAINST THE SLIDE IN ALL POSITIONS OF THE SLIDE TO THEREBY FORM A SEAL BETWEEN THE HOUSING AND THE SLIDE.
References Cited (Backward Citations)
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Cited
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Cited
US2473848A
Cited
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Cited
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Cited
US2829222A
Cited
US3211877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |