Damper for a grapple
CA 2085017 C · Owner: Benco Parts And Equipment Ltd. · Inventors: Beaulieu, Benoit Ludger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combination of a first element rotationally coupled to a second element, with a damper or snubber for slowing the rotational movement, which has a core with a tapered surface, the core being affixed to the first element. A housing having a tapered surface is affixed to the second element. Axial alignment is maintained between the core and the housing and a selected friction force is developed between the tapered surfaces of the core and the housing so that movement of the joint is dampened.
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 December 10, 1992 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2014.
- 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.