Patent US3224280A successfully refreshed from Google Patents.
US3224280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stored energy operating mechanism for circuit breaker
Assignee: Allis Chalmers Corp
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Filing: 1964-04-07
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Granted: 1965-12-21
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Expires: 1984-04-07
Abstract
No abstract record available.
Inventors
- 👤 John W May
- 👤 George K Benham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:23
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/30; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN AN OPERATING MECHANISM HAVING A FIRST TOGGLE MOVABLE FROM A COLLAPSED POSITION TO AN OVERCENTER POSITION, ACTUATING MEANS FOR MOVING SAID FIRST TOGGLE TO SAID OVERCENTER POSITION, SAID ACTUATING MEANS COMPRISING, IN COMBINATION, A SECOND TOGGLE MOVABLE FROM A COLLAPSED POSITION TO AN EXTENDED POSITION, A SPRING OPERATIVELY CONNECTED TO SAID TOGGLE AND MOVABLE FROM DISCHARGED TO CHARGED CONDITION BY SAID SECOND TOGGLE AS THE LATTER MOVES TO ITS EXTENDED POSITION, RELEASABLE LATCHING MEANS FOR MAINTAINING SAID SECOND TOGGLE IN EXTENDED POSITION AND SAID SPRING IN CHARGED CONDITION, AND MEANS FOR MOVING SAID SECOPND TOGGLE FROM COLLAPSED POSITION TO ITS EXTENDED POSITION, SAID MEANS COMPRISING A GEAR ROTATABLE ABOUT AN AXIS AND HAVING A PROJECTION THEREON, AND A CRANK ROTATABLE WITH RESPECT TO SAID GEAR ABOUT SAID AXIS AND ADAPTED TO BE ENGAGED BY AND ROTATED BY SAID PROJECTION ON SAID GEAR, SAID CRANK BEING ADAPTED TO ENGAGE SAID SECOND TOGGLE TO MOVE SAID TOGGLE TO EXTENDED POSITION.
Claim 2
Dependent Claim
159 words
IN AN OPERATING MECHANISM HAVING A FIRST TOGGLE MOVABLE FROM A COLLAPSED POSITION TO AN OVERCENTER POSITION, ACTUATING MEANS FOR MOVING SAID FIRST TOGGLE TO SAID OVERCENTER POSITION, SAID ACTUATING MEANS COMPRISING, IN COMBINATION, A SECOND TOGGLE MOVABLE FROM A COLLAPSED POSITION TO AN EXTENDED POSITION, A SPRING OPERATIVELY CONNECTED TO SAID TOGGLE AND MOVABLE FROM DISCHARGED TO CHARGED CONDITION BY SAID SECOND TOGGLE AS THE LATTER MOVES TO ITS EXTENDED POSITION, RELEASABLE LATCHING MEANS FOR MAINTAINING SAID SECOND TOGGLE IN EXTENDED POSITION AND SAID SPRING IN CHARGED CONDITION, AND MEANS FOR MOVING SAID SECOPND TOGGLE FROM COLLAPSED POSITION TO ITS EXTENDED POSITION, SAID MEANS COMPRISING A GEAR ROTATABLE ABOUT AN AXIS AND HAVING A PROJECTION THEREON, AND A CRANK ROTATABLE WITH RESPECT TO SAID GEAR ABOUT SAID AXIS AND ADAPTED TO BE ENGAGED BY AND ROTATED BY SAID PROJECTION ON SAID GEAR, SAID CRANK BEING ADAPTED TO ENGAGE SAID SECOND TOGGLE TO MOVE SAID TOGGLE TO EXTENDED POSITION.
References Cited (Backward Citations)
US3174021A
Cited
US3174022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |