Method of assembling an electric motor to eliminate a separate endplay adjustment
CA 2062289 C · Owner: Siemens Automotive Limited · Inventors: Smith, Oscar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making an electric motor which eliminates the need for a separate endplay adjustment wherein permanent magnets act on the armature laminations to urge the motor shaft in one direction so that the entire endplay appears at only one end of the shaft.
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 4, 1992 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2014.
- 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.