Apparatus and method for evaluating a condition of a magnetic circuit of an electric machine
CA 2359207 A1 · Owner: Bourgeois, Jean-Marc · Inventors: Lalonde, Francois; Bourgeois, Jean-Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method consists in positioning a probe (8) in front of a pair of teeth provided on the face of the magnetic circuit of an electric machine. The probe has spaced apart magnetic prong portions (16 18) having respective end faces adapted to match the teeth of the pair with the end faces (17) in registry with the teeth. The prong portions are respectively provided with an excitation winding (20) and a measurement winding (22). The excitation winding is excited to induce a magnetic flux in a test zone formed of the teeth in front of the probe and a portion of the magnetic circuit exending therebetween. The current flowing in the excitation winding and the voltage across the measurement …
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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
- Filed January 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2021.
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Timeline
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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.