System and method of securing annular parts
CA 2308546 A1 · Owner: Steed, Leen D. · Inventors: Steed, Leen D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosed invention provides an improved system and method for securing annular parts (5) such as bearings, bushings and seals in machines providing , a split housing (7, 8) with a groove on the inner surface that mates with the outer surface of the annular part (5). The annular part is held securely in the housing (7, 8) without twisting because of the shape of the groove (4) which has a cross section that is an arc of a circle the circle having a , radius that is less than the radius of the annular part (5). The invention also provides a method of making the groove (4) using a ball-nose cutter on a computer controlled milling machine, which method is much faster and easier than …
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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 October 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2020.
- 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.