Circuit breaker
Abstract
Abstract THE CIRCUIT BREAKER ASSEMBLED IN A MOLDED CASING INCLUDES FOR EACH POLE THEREOF TWO CONTACTING MEMBERS HAVING CONTACTING POINTS AT THEIR TIPS, THE TWO CONTACTING MEMBERS BEING SO ARRANGED THAT AN ELECTROMAGNETIC REPULSIVE FORCE IS CREATED THEREBETWEEN WHEN A CURRENT PASSES THROUGH THE CONTACTING MEMBERS AND THE CONTACTING POINTS AT THE TIME THE CIRCUIT BREAKER IS CLOSED, AT LEAST ONE OF SAID CONTACTING MEMBERS BEING FURTHER PROVIDED WITH CURRENT LIMITING ENGAGEMENT PARTS, WHICH ARE RELEASED WHEN THE CURRENT PASSING THROUGH THE CIRCUIT BREAKER EXCEEDS A PREDETERMINED VALUE. UPON DISENGAGEMENT OF THE EMGAGEMENT PORTIONS, THE CONTACTING MEMBERS ARE ABRUPTLY SEPARATED BY THE ELECTROMAGNETIC REPULSIVE FORCE, AND THE CURRENT PASSING THROUGH THE BREAKER IS INTERRUPTED. THE ENGAGEMENT PARTS ARE REENGAGED WHEN THE CONTACTING MEMBERS ARE OPENED AT THEIR MAXIMUM OPENING POSITIONS BY MEANS OF, FOR INSTANCE, A CONVENTIONAL TRIPPING MECHANISM.
Inventors
- 👤 Ryoji Ozaki
- 👤 Kunio Igarashi
- 👤 Kiyoshi Kandatsu
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |