Electromagnetic claw-pole rotor and process for manufacturing such a rotor
CA 2200775 A1 · Owner: Gueraud, Alain · Inventors: Gueraud, Alain; Mercier, Jean-Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an electromagnetic claw-pole rotor consisting of parts made of magnetic material (1 9) forming the poles (3, 30) of the rotor and parts made of non-magnetic material (12) separating opposing poles (3 30), housed in a hollow revolving carter cylinder (13) made of non-magnetic material; it has two single-pole end parts (1) made of magnetic material with opposite polarities at least one mid piece (9) made of magnetic material and parts made of non-magnetic material (12) each part (1), a bevelled pole (3) and two flat lateral surfaces (6) being symmetrical with the plane of symmetry of the bevelled pole (3) the mid piece(s) (9), consisting of the two poles (30) with …
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 March 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2019.
- 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.