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Patent applications and USPTO patent grants for Merrison; John C..The latest application filed is for "motor stoppage detection using back emf voltage".
Patent | Date |
---|---|
Motor stoppage detection using back emf voltage Grant 5,003,241 - Rowan , et al. March 26, 1 | 1991-03-26 |
Electric motor controller with bypass contactor Grant 4,996,469 - DeLange , et al. February 26, 1 | 1991-02-26 |
Electric motor speed control apparatus and method Grant 4,996,470 - Rowan , et al. February 26, 1 | 1991-02-26 |
Motor controller with an improved stopping technique Grant 4,978,897 - Merrison , et al. December 18, 1 | 1990-12-18 |
Method for stopping an electric motor Grant 4,862,052 - Unsworth , et al. August 29, 1 | 1989-08-29 |
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