Multiphase, synchronous, electrical (rotating) machine excited by a permanent magnet
CA 1304440 C · Owner: Leitgeb, Wilhelm · Inventors: Leitgeb, Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a multiphase synchronous, electrical machine that is excited by a permanent magnet, this incorporating a stator winding that is supplied with power through a static converter in such a way that apart from the primary excitation field produced by the permanent magnets there is an additional magnetic longitudinal field that is generated by the armature winding through with current flows this additional longitudinal field being added to or subtracted from the primary excitation field in the longitudinal axis of the pole, and in which there are permanent magnets arranged within the winding-free rotor, as well as soft magnetic materials with intervening spaces of …
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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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.