Drive power transmission system
CA 1112484 A · Owner: Mitsuboshi Belting Ltd. · Inventors: Imamura, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drive power transmission system having a driving pulley, a plurality of driven pulleys, and the power transmission belt laid in a serpentine manner over the pulleys. The driving pulley and at least one driven pulley,which are in contact with the inner surface of the power transmission belt, have a plurality of V-grooves arranged circumferentially. The V-groove fits to ribs formed on the inner surface of the belt, and the remaining pulley or pulleys are engaged, with the outer surface of the power transmission belt have a plurality of protrusions arranged in parallel and circumferentially. The protrusions engage the outer surface of the belt which is flat, and the power transmission belt …
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 November 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 1998.
- 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.