Conveyor idlers and rollers and bearing housing assemblies for them
CA 2093324 C · Owner: Cook, Anthony Veness · Inventors: Cook, Anthony Veness
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bearing housing assembly end unit for a roller comprises a housing, a roller thrust bearing provided in the housing and having an outer race, a roller cage and an inner race provided in the housing with the components being relatively rotatable. A washer holds the components in the housing, and springs are held in the housing so as to transmit force to at least one of the components so as to urge the components relative to the housing. The spring is preferably a frusto-conical spring and the roller thrust bearing is preferably a taper roller bearing.
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 October 3, 1991 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2013.
- 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.