Lock-up converter clutch with centrifugal control
CA 1055804 A · Owner: General Motors Corporation · Inventors: Stevenson, Paul D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A torque converter and lock-up clutch in which a single plate fluid operated clutch is disposed between the turbine and the input shell of the torque converter. The clutch engagement chamber is formed between the turbine and the clutch plate while a clutch disengagement chamber is formed between the input shell and the clutch plate. A normally open centrifugally responsive valve is mounted on the clutch and provides a controlled flow path between the engagement and disengagement chambers in response to clutch speed thereby controlling the pressure differential between the chambers when the clutch speed is less than a predetermined value. A normally closed …
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 June 5, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 1996.
- 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.