Dual clutch application area and control
CA 1305677 C · Owner: Schneider, Karl F. · Inventors: Haley, William J.; Schneider, Karl F.; Miller, Alan L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adaptive clutch torque capacity control for an automotive vehicle clutch (10) utilizing a dual area apply piston (45) for engagement of the clutch plate (27) for accurate control over a larger than normal torque range. The use of two piston areas (46,48) allows one area to be controlled in a "coarse" fashion, while the other piston area, which is generally a small area, provides a "vernier" or fine adjustment control. The small area piston is controlled by an electronic closed loop (114) for fine adjustment of any errors occurring in the "coarse" control.
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 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 2009.
- 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.