Hydraulic torque converter lock-up clutch
CA 1069022 A · Owner: Borg-Warner Corporation · Inventors: Fisher, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A controlled lock-up clutch interposed between the impeller and turbine in a torque converter of an automatic transmission for an automotive vehicle where the clutch lock-up and unlock is controlled at a torque converter speed ratio design point by the stator movement and loading. A lock-up clutch is actuated from a hydraulic source and controlled by a rotary valve that is actuated by a one-way overrunning clutch positioned between the stator of the torque converter and the rotary valve movable between two control positions.
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 January 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 1997.
- 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.