Patent US3174024A successfully refreshed from Google Patents.
US3174024A
Expired / Lapsed
US
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Circuit breaker with contact biasing means
Assignee: Westinghouse Electric Corp
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Filing: 1961-05-19
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Granted: 1965-03-16
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Russell C Strother
- 👤 Zipay John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:45
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/52; H01H71/522; H01H71/525; H01H71/02; H01H71/0207; H01H71/0221; H01H73/00; H01H73/02; H01H73/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A HOUSING, A CIRCUIT-BREAKER MECHANISM SUPPORTED WITHIN SAID HOUSING, SAID CIRCUIT-BREAKER MECHANISM COMPRISING A UNITARY STRUCTURE COMPRISING SPACED SIDE PLATES AND CIRCUIT INTERRUPTING MEANS SUPPORTED BY SAID SPACED SIDE PLATES, SAID CIRCUIT INTERRUPTING MEANS COMPRISING AN OPERATING MECHANISM, A STATIONARY CONTACT, A MOVABLE CONTACT COOPERABLE WITH SAID STATIONARY CONTACT TO OPEN AND CLOSE A CIRCUIT, AN ELONGATED MOVABLE CONTACT ARM CARRYING SAID MOVABLE CONTACT AT ONE END THEREOF, MEANS PIVOTALLY CONNECTING SAID MOVABLE CONTACT ARM INTERMEDIATE THE ENDS THEREOF TO SAID OPERATING MECHANISM, AND TENSION SPRING MEANS CONNECTED TO SAID MOVABLE CONTACT ARM AT THE NONCONTACT-CARRYING END OF SAID MOVABLE CONTACT ARM TO BIAS SAID MOVABLE CONTACT ARM ABOUT SAID INTERMEDIATE PIVOT TO MAINTAIN PRESSURE BETWEEN SAID CONTACTS WHEN SAID CONTACTS ARE IN THE CLOSED POSITION.
Claim 2
Dependent Claim
132 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A HOUSING, A CIRCUIT-BREAKER MECHANISM SUPPORTED WITHIN SAID HOUSING, SAID CIRCUIT-BREAKER MECHANISM COMPRISING A UNITARY STRUCTURE COMPRISING SPACED SIDE PLATES AND CIRCUIT INTERRUPTING MEANS SUPPORTED BY SAID SPACED SIDE PLATES, SAID CIRCUIT INTERRUPTING MEANS COMPRISING AN OPERATING MECHANISM, A STATIONARY CONTACT, A MOVABLE CONTACT COOPERABLE WITH SAID STATIONARY CONTACT TO OPEN AND CLOSE A CIRCUIT, AN ELONGATED MOVABLE CONTACT ARM CARRYING SAID MOVABLE CONTACT AT ONE END THEREOF, MEANS PIVOTALLY CONNECTING SAID MOVABLE CONTACT ARM INTERMEDIATE THE ENDS THEREOF TO SAID OPERATING MECHANISM, AND TENSION SPRING MEANS CONNECTED TO SAID MOVABLE CONTACT ARM AT THE NONCONTACT-CARRYING END OF SAID MOVABLE CONTACT ARM TO BIAS SAID MOVABLE CONTACT ARM ABOUT SAID INTERMEDIATE PIVOT TO MAINTAIN PRESSURE BETWEEN SAID CONTACTS WHEN SAID CONTACTS ARE IN THE CLOSED POSITION.
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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 |