US3098134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving mechanisms for electric circuit-breakers
Assignee: COQ NV
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Filing: 1961-07-03
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Granted: 1963-07-16
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Expires: 1981-07-03
Abstract
Abstract 912,948. Switches held set and freed mechanically. COQ, N. V. June 22, 1961 [July 2, 1960], No. 22676/61. Class 38 (5). In a switch similar to that of Specification 753,754, operation of the opening button 33a is prevented unless the opening spring 9 is tensioned and the switch is closed. Similarly, operation of a closing button 40 is prevented unless the closing spring 14 is tensioned. The button 33a acts to release a spring biased lever 28, movement of which to open the switch is prevented by links 41 ... 43 unless the contacts are closed. The button 40 likewise acts to release a lever 34, movement of which to close the switch is prevented by links 46...48 unless the spring 14 is strained and an intermediate member 10 connected thereto is latched at 26, 27. The member 10 is moved to its latched position to tension the springs by a piston 17.
Inventors
- 👤 Nijland Hendrik A Hidde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:10
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/30; H01H3/60; H01H3/605; H01H2003/3089; H01H3/3005; H01H3/301
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
270 words
A DRIVING MECHANISM FOR AN ELECTRIC CIRCUIT-BREAKER, COMPRISING IN COMBINATION A MOVABLE PART, AT LEAST ONE SWITCHING CONTACT CARRIED BY SAID MOVABLE PART, A MOVABLE INTERMEDIATE MEMBER, AT LEAST ONE SWITCHING-OFF SPRING, A FIRST LOCKING DEVICE FOR KEEPING SAID SPRING IN TENSIONED CONDITION, SAID SWITCHING-OFF SPRING AND SAID FIRST LOCKING DEVOCE CONNECTING SAID MOVABLE PART WITH SAID INTERMEDIATE MEMBER, AT LEAST ONE SWITCHING-ON SPRING, A SECOND LOCKING DEVICE FOR KEEPING THE LATTER SPRING IN TENSIONED CONDITION, SAID SWITCHING-ON SPRING AND SECOND LOCKING DEVICE CONNECTING SAID INTERMEDIACT MEMBER WITH A STATIONARY PART OF THE CIRCUIT-BREAKER, AN OPERATING MEMBER ACTING AN THE INTERMEDIATE MEMBER AND ADAPTED TO BRING ALL SPRINGS IN THEIR TENSIONED CONDITION AND BOTH LOCKING DEVICES IN THEIR LOCKING POSITIONS SIMULTANEOUSLY BY MOVING SAID INTERMEDIATE MEMBER AGAINST THE FORCES OF ALL SPRINGS, A FIRST UNLOCKING MEANS AND A SECOND UNLOCKING MEANS FOR THE RELEASE FROM THEIR LOCKING POSITIONS OF SAID FIRST AND SAID SECOND LOCKING DEVICES RESPECTIVLY, SAID FIRST UNLOCKING MEANS INCLUDING A SPRING LOADED MOVABLE UNLOCKING MEMBER, A PAWL HOLDING SAID UNLOCKING MEMBER IN A SPRING LOADED WORKING POSITION UNTIL THE PAWL IS RELEASED FROM OUTSIDE THE CIRCUIT BREAKER, AND A LOST MOTION COUPLING INTERCONNECTING SAID UNLOCKING MEMBER AND SAID MOVABLE PART SO TO FORCE AND HOLD SAID UNLOCKING MEMBER TO SAID WORKING POSITION WHEN THE MOVABLE PART IS MOVED TO OPEN THE SWITCHING CONTACT AND TO PREVENT THE RELEASE OF SAID PAWL FROM RELEASING SAID UNLOCKING MEMBER FROM SAID WORKING POSITION, SAID LOST MOTION COUPLING FREEING THE UNLOCKING MEMBER SO THAT IT CAN BE RELEASED BY SAID PAWL FROM SAID WORKING POSITION WHEN SAID SWITCHING CONTACT IS CLOSED.
Claim 2
Dependent Claim
270 words
A DRIVING MECHANISM FOR AN ELECTRIC CIRCUIT-BREAKER, COMPRISING IN COMBINATION A MOVABLE PART, AT LEAST ONE SWITCHING CONTACT CARRIED BY SAID MOVABLE PART, A MOVABLE INTERMEDIATE MEMBER, AT LEAST ONE SWITCHING-OFF SPRING, A FIRST LOCKING DEVICE FOR KEEPING SAID SPRING IN TENSIONED CONDITION, SAID SWITCHING-OFF SPRING AND SAID FIRST LOCKING DEVOCE CONNECTING SAID MOVABLE PART WITH SAID INTERMEDIATE MEMBER, AT LEAST ONE SWITCHING-ON SPRING, A SECOND LOCKING DEVICE FOR KEEPING THE LATTER SPRING IN TENSIONED CONDITION, SAID SWITCHING-ON SPRING AND SECOND LOCKING DEVICE CONNECTING SAID INTERMEDIACT MEMBER WITH A STATIONARY PART OF THE CIRCUIT-BREAKER, AN OPERATING MEMBER ACTING AN THE INTERMEDIATE MEMBER AND ADAPTED TO BRING ALL SPRINGS IN THEIR TENSIONED CONDITION AND BOTH LOCKING DEVICES IN THEIR LOCKING POSITIONS SIMULTANEOUSLY BY MOVING SAID INTERMEDIATE MEMBER AGAINST THE FORCES OF ALL SPRINGS, A FIRST UNLOCKING MEANS AND A SECOND UNLOCKING MEANS FOR THE RELEASE FROM THEIR LOCKING POSITIONS OF SAID FIRST AND SAID SECOND LOCKING DEVICES RESPECTIVLY, SAID FIRST UNLOCKING MEANS INCLUDING A SPRING LOADED MOVABLE UNLOCKING MEMBER, A PAWL HOLDING SAID UNLOCKING MEMBER IN A SPRING LOADED WORKING POSITION UNTIL THE PAWL IS RELEASED FROM OUTSIDE THE CIRCUIT BREAKER, AND A LOST MOTION COUPLING INTERCONNECTING SAID UNLOCKING MEMBER AND SAID MOVABLE PART SO TO FORCE AND HOLD SAID UNLOCKING MEMBER TO SAID WORKING POSITION WHEN THE MOVABLE PART IS MOVED TO OPEN THE SWITCHING CONTACT AND TO PREVENT THE RELEASE OF SAID PAWL FROM RELEASING SAID UNLOCKING MEMBER FROM SAID WORKING POSITION, SAID LOST MOTION COUPLING FREEING THE UNLOCKING MEMBER SO THAT IT CAN BE RELEASED BY SAID PAWL FROM SAID WORKING POSITION WHEN SAID SWITCHING CONTACT IS CLOSED.
References Cited (Backward Citations)
US2784270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |