Variable pulley transmission
CA 1097946 A · Owner: Borg-Warner Corporation · Inventors: Smirl, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable pulley transmission especially adaptable for use in a passenger vehicle which comprises driver and driven pulleys connected by a flexible belt the spacing, between the pulleys and thus the drive ratio being controlled by a hydraulic control arrangement which is both engine speed and torque responsive.
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 March 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 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.