US Patent 10501286 Simultaneous elevator car and counterweight safety actuation
Patent 10501286 was granted and assigned to Otis Elevator Company on December, 2019 by the United States Patent and Trademark Office.
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An illustrative example embodiment of an elevator system includes an elevator car, a counterweight, roping coupling the elevator car and the counterweight, the roping supporting a load of the elevator car and the counterweight, and a plurality of safeties. The plurality of safeties includes a plurality of elevator car safeties supported for movement with the elevator car that are selectively actuated to engage a stationary surface to prevent movement of the elevator car. The plurality of safeties also includes a plurality of counterweight safeties supported for movement with the counterweight that are selectively actuated to engage a stationary surface to prevent movement of the counterweight. The safeties are configured for wireless communication causing essentially simultaneous actuation of the elevator car safeties and the counterweight safeties.
US Patent 10501286 Simultaneous elevator car and counterweight safety actuation
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