Method and apparatus for surface hardening cams
CA 1186021 A · Owner: Sciaky Bros. Inc. · Inventors: Reynolds, Richard W.; Sciaky, Albert M.; Farrell, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method and apparatus for simultaneously surface heat treating the wear surfaces of a multiplicity of cams on a cam shaft by transferring to the cam surfaces the energy of a concentrated beam of electrons. The electron beam is directed for a predetermined time to a desired spot on the surface of the said cams and is caused to move incrementally from one to the next of a predetermined matrix of spots on the work surface as the cam shaft is being rotated. After the predetermined matrix pattern has been repeated one or more times the beam is then, directed sequentially from one cam to the next and the process repeated until all wear surfaces on the cams have been …
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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 April 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2002.
- 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.