Apparatus for synchronising ac-motors
CA 1064574 A · Owner: European Atomic Energy Community (Euratom) · Inventors: Eder, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for controlling an AC motor with a feed, back arrangement where the feed-back signal is the output signal of an electromechanical pulse generator coupled to the shaft of the motor. The apparatus comprises a microprocessor to which, is fed the feed-back signal, a reference signal and the output signals of a digital clock, and which generates output signals for controlling the frequency and phase of the AC power supplied to the motor by comparing the reference signal with the arrival times of the feed-back pulses as indicated by the digital clock.
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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 1996.
- 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.