Terminal slowdown control for elevator system
CA 1164113 A · Owner: Westinghouse Electric Corporation · Inventors: Lowry, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
23 47,790, ABSTRACT OF THE DISCLOSURE, An elevator system which initiates terminal slowdown in response to a comparison between a terminal slowdown speed pattern signal and the normal or desired speed pattern signal. The terminal slowdown speed pattern signal is generated in response to the actual position of the elevator car in a terminal zone adjacent to each terminal floor.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 20, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2001.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.