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Expired Canadian patentCanada

Method of mounting a fan on a rotor

CA 1056137 A · Owner: General Electric Company · Inventors: Zurbuch, Kenneth J.; Brunschwig, John M.; Stone, William M.

CIPO record

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Abstract From the Canadian patent

A method of forming and mounting a fan for use in cooling an annular group of stator winding end turns in a dynamoeleatric machine. The method comprises the steps of forming in an annulus of a plurality of cooling means which remain disposed generally in the plane of the annulus, and the annulus is then secured to an end ring of a rotatable assembly for the dynamoelectric machine. Thereafter, the cooling means is deformed from the plane of the annulus to extend over the outer periphery of the stator end turns. The method of making a dynamoelectric machine and the method of effecting improved concentricity of a fan in the manufacture of a dynamoelectric machine are also disclosed.

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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 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 12, 1979
Term endedJune 12, 1996
Patent numberCA 1056137 A
Classification (IPC)H02K15/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJune 12, 1979Term endedJune 12, 1996

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.