Variable speed pulley
CA 1286526 C · Owner: Mitsuboshi Belting Ltd. · Inventors: Hashimoto, Yasuhiro; Takano, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable speed pulley having rearrangement structure for causing uniform distribution of a plurality of force applying elements utilized to control the width of the pulley groove as a function of the centrifugal forces developed ment structure includes a coil spring connected in the structure to permit relative rotational movement between the fixed and movable pulley sheave halves as a result of changes of the force applied to the movable pulley sheave half during driving operation of the pulley. The rearranagement structure effectively minimizes vibration and noise by providing improved uniformity in the distribution of the force applying elements both in the steady state and speed and …
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
- Granted July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
- 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.