Patents Assigned to Pierre Hardy
  • Pneumatic control device with programmed characteristic particularly for a vehicle braking device
    Patent number: 3932001
    Abstract: A pneumatic control device with programmed characteristic, particularly for a vehicle braking device, wherein it comprises a pilot reducing valve connected respectively to a source of compressed fluid supply, to the atmosphere and to a fluid outlet conduit terminating in a pneumatic control member, the reducing valve comprising members for controlling the passage of the fluid whose operation is connected with programming device whose characteristics are capable of being corrected by the use of applying different parameters.
    Type: Grant
    Filed: August 29, 1973
    Date of Patent: January 13, 1976
    Assignees: Simeon Lekarski, Pierre Hardy, Leon Hardy
    Inventors: Simeon Lekarski, Pierre Hardy, Leon Hardy