US3214556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker operating mechanism for rapid contact opening and closing
Assignee: McGraw Edison Co
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Filing: 1961-07-28
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Granted: 1965-10-26
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Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 John J Zimsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:45
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/30; H01H3/26; H01H2003/266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A CIRCUIT BREAKER HAVING MAIN SWITCH MEANS, STORED ENERGY SPRING MEANS, A PIVOTALLY MOUNTED OPERATING ELEMENT HAVING GUIDE MEANS FORMED THEREON, LATCH MEANS FOR HOLDING SAID OPERATING ELEMENT WHEN THE LATTER HAS BEEN PIVOTED TO A FIRST POSITION, FOLLOWER MEANS MOVABLE ON SAID GUIDE MEANS BETWEEN FIRST AND SECOND POSITIONS, SAID SPRING MEANS BEING CONNECTED AT ONE END TO SAID FOLLOWER MEANS, OPERATING MEANS CONNECTED TO THE OTHER END OF SAID SPRING MEANS FOR PIVOTING SAID OPERATING ELEMENT TO ITS FIRST POSITION AND FOR EXTENDING SAID SPRING MEANS, TOGGLE LINK MEANS PIVOTALLY MOUNTED ON SAID OPERATING ELEMENT AND CONNECTED TO SAID FOLLOWER MEANS, SAID FOLLOWER MEANS ALSO BEING CONNECTED TO SAID SWITCH MEANS, SAID OPERATING MEANS BEING OPERATIVE AFTER SAID OPERATING ELEMENT HAS BEEN LATCHED TO MOVE SAID SPRING MEANS OVERCENTER RELATIVE TO SAID TOGGLE LINK MEANS SO THAT SAID TOGGLE LINK MEANS IS ROTATED TO MOVE SAID FOLLOWER MEANS FROM ONE END OF SAID GUIDE MEANS TO THE OTHER AND TO CLOSE SAID MAIN SWITCH MEANS AS SAID SPRING MEANS PARTIALLY DISCHARGES, RELEASE OF SAID LATCH MEANS ALLOWING SAID OPERATING ELEMENT TO RETURN TO ITS FIRST POSITION TO COLLAPSE SAID TOGGLE LINK MEANS AND TO OPEN SAID MAIN SWITCH MEANS AS SAID SPRING MEANS FULLY DISCHARGED.
Claim 2
Dependent Claim
207 words
A CIRCUIT BREAKER HAVING MAIN SWITCH MEANS, STORED ENERGY SPRING MEANS, A PIVOTALLY MOUNTED OPERATING ELEMENT HAVING GUIDE MEANS FORMED THEREON, LATCH MEANS FOR HOLDING SAID OPERATING ELEMENT WHEN THE LATTER HAS BEEN PIVOTED TO A FIRST POSITION, FOLLOWER MEANS MOVABLE ON SAID GUIDE MEANS BETWEEN FIRST AND SECOND POSITIONS, SAID SPRING MEANS BEING CONNECTED AT ONE END TO SAID FOLLOWER MEANS, OPERATING MEANS CONNECTED TO THE OTHER END OF SAID SPRING MEANS FOR PIVOTING SAID OPERATING ELEMENT TO ITS FIRST POSITION AND FOR EXTENDING SAID SPRING MEANS, TOGGLE LINK MEANS PIVOTALLY MOUNTED ON SAID OPERATING ELEMENT AND CONNECTED TO SAID FOLLOWER MEANS, SAID FOLLOWER MEANS ALSO BEING CONNECTED TO SAID SWITCH MEANS, SAID OPERATING MEANS BEING OPERATIVE AFTER SAID OPERATING ELEMENT HAS BEEN LATCHED TO MOVE SAID SPRING MEANS OVERCENTER RELATIVE TO SAID TOGGLE LINK MEANS SO THAT SAID TOGGLE LINK MEANS IS ROTATED TO MOVE SAID FOLLOWER MEANS FROM ONE END OF SAID GUIDE MEANS TO THE OTHER AND TO CLOSE SAID MAIN SWITCH MEANS AS SAID SPRING MEANS PARTIALLY DISCHARGES, RELEASE OF SAID LATCH MEANS ALLOWING SAID OPERATING ELEMENT TO RETURN TO ITS FIRST POSITION TO COLLAPSE SAID TOGGLE LINK MEANS AND TO OPEN SAID MAIN SWITCH MEANS AS SAID SPRING MEANS FULLY DISCHARGED.
References Cited (Backward Citations)
US2370037A
Cited
US2581181A
Cited
US2838718A
Cited
US2823338A
Cited
US2914635A
Cited
US3021400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |