Dynamoelectric machine prestressed rotor shaft and method of manufacturing the same
CA 1056894 A · Owner: General Electric Company · Inventors: Stark, William H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a dynamoelectric machine rotor assembly where the rotor shaft material is not required to be of a large initial diameter to provide for seats shoulders and the like as the shaft material is machined, but where the initial rotor shaft material need be only the size of the shaft extensions. A portion of a shaft of smaller diameter is prestressed by heat shrinking a collar onto that portion of the shaft a rotor body is, assembled onto the shaft and a second collar is mounted, on another part of the shaft by heat shrinking. The resulting rotor assembly has two prestressed portions which stiffen the assembly. The prestressed portions extend from the rotor body to the …
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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 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 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.
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.