Broaching bearings in an engine block
CA 2089244 A1 · Owner: Mast, Donald W. · Inventors: Mast, Donald W.; Yera, Harvey J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elongated broach for broaching a plurality of axially aligned bearing bores, having a front piloting section and a rear piloting section. Between the front and rear piloting sections, the broach has alternate broaching sections and piloting sections. While one broaching section is broaching one bearing bore, the adjacent piloting section is guiding the broach in the next bearing bore. This provides a guided movement of the broach and prevents the broach from straying off line.
Read the whole patent
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 February 10, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2015.
- 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.