Patent US3194922A successfully refreshed from Google Patents.
US3194922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter with improved compact arrangement of parts
Assignee: Westinghouse Electric Corp
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Filing: 1961-08-08
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Granted: 1965-07-13
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Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 James P Ellsworth
- 👤 Robert H Flick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:48
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A STATIONARY CONTACT, A MOVABLE CONTACT COOPERABLE WITH SAID STATIONARY CONTACT TO OPEN AND CLOSE AN ELECTRIC CIRCUIT, AN OPERATING MECHANISM COMPRISING A RELEASABLE MEMBER AND OVERCENTER SPRING MEANS, LATCH MEANS DISPOSED ON A FIRST SIDE OF SAID OPERATING MECHANISM AND LATCHING SAID RELEASABLE MEMBER IN A NORMAL POSITION, TRIP MEANS DISPOSED ON A SIDE OF SAID OPERATING MECHANISM WHICH IS OPPOSITE SAID FIRST SIDE, MEANS OPERATIVELY CONNECTING SAID TRIP MEANS TO SAID LATCH MEANS, UPON THE OCCURENCE OF CERTAIN ABNORMAL CURRENT CONDITIONS, SAID TRIP MEANS AUTOMATICALLY OPERATING THROUGH SAID CONNECTING MEANS TO MOVE SAID LATCH MEANS TO EFFECT RELEASE OF SAID RELEASABLE MEMBER, AND SAID RELEASABLE MEMBER WHEN RELEASED MOVING TO OPERATE SAID OVERCENTER SPRING MEANS TO EFFECT OPENING OF SAID CONTACTS.
Claim 2
Dependent Claim
129 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A STATIONARY CONTACT, A MOVABLE CONTACT COOPERABLE WITH SAID STATIONARY CONTACT TO OPEN AND CLOSE AN ELECTRIC CIRCUIT, AN OPERATING MECHANISM COMPRISING A RELEASABLE MEMBER AND OVERCENTER SPRING MEANS, LATCH MEANS DISPOSED ON A FIRST SIDE OF SAID OPERATING MECHANISM AND LATCHING SAID RELEASABLE MEMBER IN A NORMAL POSITION, TRIP MEANS DISPOSED ON A SIDE OF SAID OPERATING MECHANISM WHICH IS OPPOSITE SAID FIRST SIDE, MEANS OPERATIVELY CONNECTING SAID TRIP MEANS TO SAID LATCH MEANS, UPON THE OCCURENCE OF CERTAIN ABNORMAL CURRENT CONDITIONS, SAID TRIP MEANS AUTOMATICALLY OPERATING THROUGH SAID CONNECTING MEANS TO MOVE SAID LATCH MEANS TO EFFECT RELEASE OF SAID RELEASABLE MEMBER, AND SAID RELEASABLE MEMBER WHEN RELEASED MOVING TO OPERATE SAID OVERCENTER SPRING MEANS TO EFFECT OPENING OF SAID CONTACTS.
References Cited (Backward Citations)
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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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |