Patents Assigned to Automotive Produscts, plc
  • Actuator with an overflow chamber and means for returning the fluid from the overflow chamber during a reverse stroke
    Patent number: 5787790
    Abstract: An actuator, particularly for the operation of a vehicle clutch in which an annular piston (10) slides between cylinder walls (11, 12) to define an annular working chamber (20). A sealing means (15) seals the piston to the cylinder walls and an overflow chamber (26, 27) retains any fluid which leaks past the sealing means from the working chamber. A return means (28) is also provided for returning fluid from the overflow chamber when the piston is not undertaking a working stroke.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: August 4, 1998
    Assignee: Automotive Produscts, plc
    Inventors: Andre Tobiasz, Remy Vo, Paul Platteaux, Richard Nix