Broach sharpening machine
CA 1136859 A · Owner: Tacchella Macchine S.P.A. · Inventors: Tacchella, Elio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Broach sharpening machine in which a slide mobile in a direction transverse to the longitudinal axis of a broach to be sharpened supports a sharpening slide provided with a grinding wheel head, and a feeler unit arranged to determine the position of each broach tooth relative to the grinding wheel and comprising an articulated parallelogram in which a drag link is provided with coupling means arranged to cooperate with the broach teeth and, is connected by two resilient cranks to a frame so that it rotates with this latter about a horizontal axis perpendicular to the broach axis; the feeler unit comprising means for detecting the movements of the frame about its …
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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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.