Tensioner for a power transmission belt and method of making the same
CA 2104459 C · Owner: Dayco Products, Inc. · Inventors: Quintus, James G.; Foley, Mark P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved tensioner is provided for a power transmission belt for operation in, an endless path. The tensioner includes a support means for being fixed relative to the, belt. A belt-engaging means is carried by the support means and is movable relative, thereto. A coiled torsion spring has a first end which is operativelyinterconnected to the, support means and a second end which is operatively-interconnected to the beltengaging, means for urging the belt-engaging means relative to the support means and against the, belt with a force to tension the belt. The spring has a certain torque when the belt-, engaging means is disposed at a certain position relative to the support means. …
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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 17, 1991 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 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.