Patent US4319846A successfully refreshed from Google Patents.
US3174010A
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Circuit breaker utilizing kinetic energy of trip member to initiate opening of intermediate latch
Assignee: Westinghouse Electric Corp
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Filing: 1961-06-27
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Granted: 1965-03-16
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Bottonari
- 👤 Robert E Wobrak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/505; H01H2071/506; H01H2071/508
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A STATIONARY CONTACT, A MOVABLE CONTACT, A MOVABLE CONTACT ARM CARRYING SAID MOVABLE CONTACT AND MOVABLE TO OPEN AND CLOSE SAID CONTACTS, AN OPERATING MECHANISM COMPRISING A FIRST LATCH MEMBER RELEASABLE TO EFFECT OPENING MOVEMENT OF SAID MOVABLE CONTACT ARM, A SECOND LATCH MEMBER BEING RELEASABLE AND WHEN RELEASED NORMALLY MOVING TO EFFECT RELEASE OF SAID FIRST LATCH MEMBER, A TRIP MEMBER IN A FIRST AND LATCHING POSITION ENGAGING SAID SECOND LATCH MEMBER TO LATCH SAID SECOND LATCH MEMBER AND BEING MOVABLE TO A TRIPPING POSITION TO RELEASE SAID SECOND LATCH MEMBER, AND UPON TRIPPING MOVEMENT OF SAID TRIP MEMBER, MEANS ON SAID TRIP MEMBER OPERATING TO STRIKE SAID SECOND LATCH MEMBER TO INITIATE RELEASING MOVEMENT OF SAID SECOND LATCH MEMBER IF SAID SECOND LATCH MEMBER HAS FAILED TO NORMALLY MOVE WHEN IT IS RELEASED.
Claim 2
Dependent Claim
141 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A STATIONARY CONTACT, A MOVABLE CONTACT, A MOVABLE CONTACT ARM CARRYING SAID MOVABLE CONTACT AND MOVABLE TO OPEN AND CLOSE SAID CONTACTS, AN OPERATING MECHANISM COMPRISING A FIRST LATCH MEMBER RELEASABLE TO EFFECT OPENING MOVEMENT OF SAID MOVABLE CONTACT ARM, A SECOND LATCH MEMBER BEING RELEASABLE AND WHEN RELEASED NORMALLY MOVING TO EFFECT RELEASE OF SAID FIRST LATCH MEMBER, A TRIP MEMBER IN A FIRST AND LATCHING POSITION ENGAGING SAID SECOND LATCH MEMBER TO LATCH SAID SECOND LATCH MEMBER AND BEING MOVABLE TO A TRIPPING POSITION TO RELEASE SAID SECOND LATCH MEMBER, AND UPON TRIPPING MOVEMENT OF SAID TRIP MEMBER, MEANS ON SAID TRIP MEMBER OPERATING TO STRIKE SAID SECOND LATCH MEMBER TO INITIATE RELEASING MOVEMENT OF SAID SECOND LATCH MEMBER IF SAID SECOND LATCH MEMBER HAS FAILED TO NORMALLY MOVE WHEN IT IS RELEASED.
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |