Ellsworth; James P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ellsworth; James P..The latest application filed is for "circuit breaker with magnetic shunt hold back circuit".
- Ellsworth; James P. - Beaver PA
| Patent | Date |
|---|---|
| Circuit breaker with magnetic shunt hold back circuit Grant 4,725,800 - Grunert , et al. February 16, 1 | 1988-02-16 |
| Circuit breaker with improved arc extinguishing means Grant 4,266,210 - Mrenna , et al. May 5, 1 | 1981-05-05 |
| Disposable Circuit Breaker Grant 3,796,980 - Ellsworth March 12, 1 | 1974-03-12 |
| Enclosed Switch Device With Cover Interlock Grant 3,760,132 - Ellsworth , et al. September 18, 1 | 1973-09-18 |
| Multi-pole Circuit Breaker With Single Trip Adjustment For All Poles Grant 3,758,887 - Ellsworth , et al. September 11, 1 | 1973-09-11 |
| Circuit Breaker With Handle-indicating Means Grant 3,614,685 - Ellsworth , et al. October 19, 1 | 1971-10-19 |
| Circuit Interrupter With Improved Contact Structure And Arc-runner Grant 3,585,329 - Walker , et al. June 15, 1 | 1971-06-15 |
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