Patent US3110786A successfully refreshed from Google Patents.
US3110786A
Expired / Lapsed
US
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Electromagnetic thermal current circuit breaker
Assignee: Westinghouse Electric Corp
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Filing: 1959-11-03
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Granted: 1963-11-12
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Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 Francis L Gelzheiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:25
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/16; H01H71/162; H01H71/02; H01H71/0207; H01H71/0221; H01H71/40; H01H71/50; H01H71/52; H01H71/522; H01H71/524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A CIRCUIT INTERRUPTER HAVING SEPARABLE CONTACTS AND LATCHED MEANS RELEASABLE TO EFFECT SEPARATION OF SAID CONTACTS, A BIMETALLIC MEMBER HEATED IN RESPONSE TO CURRENT FLOW, A MAGNET, AN ARMATURE MOVABLE BY MOVEMENT OF SAID BIMETALLIC MEMBER TO EFFECT RELEASE OF SAID LATCHED RELEASABLE MEANS, A STOP AGAINST WHICH SAID BIMETALLIC MEMBER IS STRESSED IN ITS COLD CONDITION, SAID BIMETALLIC MEMBER REMAINING AGAINST SAID STOP DURING THE INITIAL PART OF ITS HEATING WHILE SAID STRESS IS RELIEVE, SAID BIMETALLIC MEMBER THEN MOVING AFTER SAID STRESS IS RELIEVED TO MOVE SAID ARMATURE IN RESPONSE TO OVERLOAD CURRENTS BELOW A PREDETERMINED VALUE TO EFFECT RELEASE OF SAID
Claim 2
Dependent Claim
105 words
IN A CIRCUIT INTERRUPTER HAVING SEPARABLE CONTACTS AND LATCHED MEANS RELEASABLE TO EFFECT SEPARATION OF SAID CONTACTS, A BIMETALLIC MEMBER HEATED IN RESPONSE TO CURRENT FLOW, A MAGNET, AN ARMATURE MOVABLE BY MOVEMENT OF SAID BIMETALLIC MEMBER TO EFFECT RELEASE OF SAID LATCHED RELEASABLE MEANS, A STOP AGAINST WHICH SAID BIMETALLIC MEMBER IS STRESSED IN ITS COLD CONDITION, SAID BIMETALLIC MEMBER REMAINING AGAINST SAID STOP DURING THE INITIAL PART OF ITS HEATING WHILE SAID STRESS IS RELIEVE, SAID BIMETALLIC MEMBER THEN MOVING AFTER SAID STRESS IS RELIEVED TO MOVE SAID ARMATURE IN RESPONSE TO OVERLOAD CURRENTS BELOW A PREDETERMINED VALUE TO EFFECT RELEASE OF SAID
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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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |