Patent US3254176A successfully refreshed from Google Patents.
US3254176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter having nuisancetripping stop means
Assignee: Westinghouse Electric Corp
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Filing: 1965-04-12
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Granted: 1966-05-31
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Francis L Gelzheiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:29
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/52; H01H71/522; H01H71/524; H01H71/1009; H01H71/1018; H01H71/04; H01H2071/046; H01H71/1054; H01H9/00; H01H9/30; H01H9/34; H01H9/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A CIRCUIT BREAKER COMPRISING A PAIR OF COOPERABLE CONTACTS OPERABLE BETWEEN OPENED AND CLOSED POSITIONS, AN OPERATING MECHANISM FOR OPERATING SAID CONTACTS, SAID OPERATING MECHANISM COMPRISING A LATCHED PIVOTALLY SUPPORTED TRIP MEMBER, TRIP MEANS LATCHING SAID TRIP MEMBER, UPON THE OCCURRENCE OF OVERLOAD CURRENTS ABOVE A PREDETERMINED VALUE THROUGH SAID CIRCUIT BREAKER, SAID TRIP MEANS OPERATING AUTOMATICALLY TO RELEASE SAID TRIP MEMBER WHEREUPON SAID TRIP MEMBER PIVOTALLY MOVES IN A FIRST
Claim 2
Dependent Claim
71 words
A CIRCUIT BREAKER COMPRISING A PAIR OF COOPERABLE CONTACTS OPERABLE BETWEEN OPENED AND CLOSED POSITIONS, AN OPERATING MECHANISM FOR OPERATING SAID CONTACTS, SAID OPERATING MECHANISM COMPRISING A LATCHED PIVOTALLY SUPPORTED TRIP MEMBER, TRIP MEANS LATCHING SAID TRIP MEMBER, UPON THE OCCURRENCE OF OVERLOAD CURRENTS ABOVE A PREDETERMINED VALUE THROUGH SAID CIRCUIT BREAKER, SAID TRIP MEANS OPERATING AUTOMATICALLY TO RELEASE SAID TRIP MEMBER WHEREUPON SAID TRIP MEMBER PIVOTALLY MOVES IN A FIRST
References Cited (Backward Citations)
No citation records indexed.
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 |