Electrical machine having a stator with cooled winding bars
CA 2499641 C · Owner: Gomes De Lima, Paulo · Inventors: Gomes De Lima, Paulo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical machine comprises a stator (10) with a laminated core (11) in which two or more slots (12) are provided which run in the axial direction and in each of which two or more winding bars (13, 14) are arranged one above the other in the radial direction and are separated from one another by spacers (19) between them, and in which channels (20) which run parallel to the winding bars (13, 14) are provided through which a , cooling medium flows in order to cool the winding bars , (13 14). In a machine such as this, considerably better cooling of the winding is achieved with little complexity in that tubular facing elements (19) which , extend in the axial direction and whose …
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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 August 11, 2003 and granted February 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2025.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.