Self-adjusting bearing
CA 2175560 C · Owner: Brouwer, Douglas J. · Inventors: Brouwer, Douglas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resilient annular bearing position-, able around a rotating shaft (12) which selfadjustingly stabilizes the shaft (12) with respect to a sleeve in which the shaft rotates. The bearing has opposite undulating surfaces made up of a series of alternating peaks (86) and valleys (88), which provide resiliency. The opposite undulating surfaces extend radially, axially or obliquely to provide radial or axial stabilization or both. The peaks may be plateaued (96) or shaped like a truncated pyramid.
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 September 1, 1995 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2017.
- 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.