Transient-free synchronous electrical power machine
CA 2122019 A1 · Owner: Farkas, Otto · Inventors: Farkas, Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Proximity switches and circumferentially movable stator windings allow a motor-generator (2) to simultaneously sense and switch from a synchronous motor position to a synchronous generator position. The mechanism replaces the conventional separate sensing and switching of motor-generator functions. Automatic rotational repositioning of the stator (21) maintains constant voltage and prevents the generation of transient voltages or harmonics. The stator flux leads the rotor magnetic flux slightly in a motor position. As the stator field weakens due to a failure of the normal power supply, the counter torque also weakens and the stator windings are biased to begin to turn with the rotor …
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
- Filed February 16, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 16, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2015.
- 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.