Method for hardening camshafts and linear inductor for the implementation of said method
CA 2280501 A1 · Owner: Leisner, Hans-Jurgen · Inventors: Leisner, Hans-Jurgen; Schulte, Peter; Gezarzick, Waldemar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for hardening camshafts wherein the cams , (5a, 5b, 5c) of the camshaft (4 12-17) are simultaneously hardened in groups during rotation of the camshaft (4, 12-17) and wherein one group (5 18, 19, 20) is heated by means of induction while the area of the camshaft (4) that is not to be hardened and bordering on said group (5 18, 19, 20) is protected , against heating by a cooling device. According to the invention said method , is characterized in that the groups (5 18, 19, 20) of cams (5a, 5b, 5c) to be hardened are simultaneously hardened by means of a linear inductor (1) in , that the cams (5a, 5b, 5c) are first heated in at least one time interval (A …
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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 January 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.