Patent US3254186A successfully refreshed from Google Patents.
US3254186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stored energy mechanism for circuit breakers
Assignee: Westinghouse Electric Corp
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Filing: 1963-12-10
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Granted: 1966-05-31
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Expires: 1983-12-10
Abstract
No abstract record available.
Inventors
- 👤 William H Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:09
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/30; H01H2003/3057; H01H2003/3063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A STORED ENERGY MECHANISM FOR ACTUATING THE CONTACTS OF A CIRCUIT BREAKER COMPRISING FIXED SUPPORT MEANS, AN OPERATING SHAFT MOUNTED ON SAID SUPPORT MEANS, ONE OR MORE OPERATING MEMEBRS SECURED TO SAID SHAFT, OPERATING MEANS FOR COUPLING SAID OPERATING MEMBERS TO SAID CONTACTS TRIP LATCH MEANS, TOGGLE MEANS FOR CONNECTING SAID TRIP LATCH MEANS TO AT LEAST ONE OF SAID OPERATING MEMBERS, A CRANKSHAFT MOUNTED ON SAID SUPPORT MEANS, A CLOSING SPRING OPERATIVELY CONNECTED TO SAID CRANKSHAFT, MEANS FOR DRIVING SAID CRANKSHAFT TO CHARGE SAID CLOSING SPRING, RELEASABLE MEANS FOR RETAINING SAID CLOSING SPRING IN A CHARGED CONDITION, AND CAM MEANS DRIVEN BY SAID CRANKSHAFT FOR EXTENDING SAID TOGGLE MEANS WHEN SAID RELEASABLE MEANS IS RELEASED TO ROTATE SAID OPERATING SHAFT AND TO ACTUATE SAID OPERATING MEANS, SAID CAM MEANS BEING SHAPED TO MAINTAIN SAID TOGGLE MEANS IN THE EXTENDED CONDITION WHILE SAID DRIVING MEANS SAID CRANKSHAFT TO CHARGE SAID CLOSING SPRING.
Claim 2
Dependent Claim
152 words
A STORED ENERGY MECHANISM FOR ACTUATING THE CONTACTS OF A CIRCUIT BREAKER COMPRISING FIXED SUPPORT MEANS, AN OPERATING SHAFT MOUNTED ON SAID SUPPORT MEANS, ONE OR MORE OPERATING MEMEBRS SECURED TO SAID SHAFT, OPERATING MEANS FOR COUPLING SAID OPERATING MEMBERS TO SAID CONTACTS TRIP LATCH MEANS, TOGGLE MEANS FOR CONNECTING SAID TRIP LATCH MEANS TO AT LEAST ONE OF SAID OPERATING MEMBERS, A CRANKSHAFT MOUNTED ON SAID SUPPORT MEANS, A CLOSING SPRING OPERATIVELY CONNECTED TO SAID CRANKSHAFT, MEANS FOR DRIVING SAID CRANKSHAFT TO CHARGE SAID CLOSING SPRING, RELEASABLE MEANS FOR RETAINING SAID CLOSING SPRING IN A CHARGED CONDITION, AND CAM MEANS DRIVEN BY SAID CRANKSHAFT FOR EXTENDING SAID TOGGLE MEANS WHEN SAID RELEASABLE MEANS IS RELEASED TO ROTATE SAID OPERATING SHAFT AND TO ACTUATE SAID OPERATING MEANS, SAID CAM MEANS BEING SHAPED TO MAINTAIN SAID TOGGLE MEANS IN THE EXTENDED CONDITION WHILE SAID DRIVING MEANS SAID CRANKSHAFT TO CHARGE SAID CLOSING SPRING.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |