US3147353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact weld breaking means
Assignee: ITE Circuit Breaker Co
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Filing: 1960-12-23
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Granted: 1964-09-01
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 James H Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:32
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/52; H01H71/522; H01H71/523; H01H71/501; H01H2071/502
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A CIRCUIT BREAKER COMPRISING A PAIR OF COOPERATING CONTACTS AND AN OPERATING MECHANISM FOR OPERATING SAID CONTACTS INTO AND OUT OF ENGAGEMENT; SAID MECHANISM INCLUDING A RELEASABLE CRADLE, LATCH MEANS FOR RESTRAINING SAID CRADLE IN A RESET POSITION, AN OPERATING SPRING URGING SAID CRADLE TO A TRIPPED POSITION, AND A MANUALLY OPERABLE MEMBER FOR OPERATING SAID CONTACTS INTO AND OUT OF ENGAGEMENT; SAID MECHANISM FURTHER INCLUDING A TRIPPING MEANS HAVING A PORTION OPERATIVELY POSITIONED FOR ENGAGEMENT WITH SAID LATCH MEANS AND WHEN DEFLECTED SUFFICIENTLY TO DISENGAGE SAID LATCH MEANS PERMITTING SAID SPRING TO MOVE SAID CRADLE TO ITS SAID TRIP POSITION WHEREIN SAID CONTACTS ARE DISENGAGED; A MOVABLE CONTACT ARM CARRYING AT ONE END THEREOF ONE OF SAID COOPERATING CONTACTS AND HAVING THE OTHER END BIASED INTO ABUTMENT WITH SAID CRADLE AT A FIRST REGION CONSTRUCTED TO PROVIDE A PIVOTAL SUPPORT FOR SAID CONTACT ARM; SAID OTHER END AND SAID FIRST REGION BEING CONSTRUCTED FOR COOPERATION WITH ONE ANOTHER WHEREBY UPON MOVEMENT OF SAID CRADLE TO ITS SAID TRIP POSITION FORCES ARE EXERTED UPON SAID CONTACT ARM DIRECTED IN A DIRECTION CREATING A BENDING MOMENT WHICH
Claim 2
Dependent Claim
186 words
A CIRCUIT BREAKER COMPRISING A PAIR OF COOPERATING CONTACTS AND AN OPERATING MECHANISM FOR OPERATING SAID CONTACTS INTO AND OUT OF ENGAGEMENT; SAID MECHANISM INCLUDING A RELEASABLE CRADLE, LATCH MEANS FOR RESTRAINING SAID CRADLE IN A RESET POSITION, AN OPERATING SPRING URGING SAID CRADLE TO A TRIPPED POSITION, AND A MANUALLY OPERABLE MEMBER FOR OPERATING SAID CONTACTS INTO AND OUT OF ENGAGEMENT; SAID MECHANISM FURTHER INCLUDING A TRIPPING MEANS HAVING A PORTION OPERATIVELY POSITIONED FOR ENGAGEMENT WITH SAID LATCH MEANS AND WHEN DEFLECTED SUFFICIENTLY TO DISENGAGE SAID LATCH MEANS PERMITTING SAID SPRING TO MOVE SAID CRADLE TO ITS SAID TRIP POSITION WHEREIN SAID CONTACTS ARE DISENGAGED; A MOVABLE CONTACT ARM CARRYING AT ONE END THEREOF ONE OF SAID COOPERATING CONTACTS AND HAVING THE OTHER END BIASED INTO ABUTMENT WITH SAID CRADLE AT A FIRST REGION CONSTRUCTED TO PROVIDE A PIVOTAL SUPPORT FOR SAID CONTACT ARM; SAID OTHER END AND SAID FIRST REGION BEING CONSTRUCTED FOR COOPERATION WITH ONE ANOTHER WHEREBY UPON MOVEMENT OF SAID CRADLE TO ITS SAID TRIP POSITION FORCES ARE EXERTED UPON SAID CONTACT ARM DIRECTED IN A DIRECTION CREATING A BENDING MOMENT WHICH
References Cited (Backward Citations)
US2134613A
Cited
US2467797A
Cited
US2627563A
Cited
US2653202A
Cited
US2693516A
Cited
US2902560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |