Patents by Inventor David G. Kokochak

David G. Kokochak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7216621
    Abstract: The present invention provides a pulley assembly adapted to transmit torque from a drive pulley to first and second driven accessories. The pulley assembly generally includes a housing and an auxiliary drive component. The auxiliary drive component is rotatably supported by the housing and adapted to be coupled to the first driven accessory. The auxiliary drive component includes first and second annular drive surfaces. The first drive surface is adapted to be drivingly coupled to the drive pulley and the second drive surface is adapted to be drivingly coupled to the second driven accessory.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: May 15, 2007
    Assignee: General Motors Corporation
    Inventors: Jeffrey A. Pigott, David G. Kokochak
  • Patent number: 4440121
    Abstract: A nut lock device for use in an engine valve train of the type wherein a rocker arm is pivotable about a fulcrum member to effect opening and closing movement of a spring biased poppet valve, the fulcrum member being supported on a support stud and retained thereon by a retainer nut threaded on the support stud, the improvement wherein the bearing surface of the retainer nut is inclined at an angle to a plane extending at right angles to the axis of the support stud and, wherein the nut reaction surface on the fulcrum member is inclined in a complementary manner to that of the retainer nut for mating engagement therewith whereby to define a cam lock preventing rotation of the retainer nut relative to the support stud during engine operation.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: April 3, 1984
    Assignee: General Motors Corporation
    Inventors: Terence J. Clancy, David G. Kokochak
  • Patent number: 3973526
    Abstract: A rotary combustion engine having a rotor with separate ignition-exhaust ports which extend from one rotor flank to the same rotor side and open to a spark plug in the opposite stationary side wall during rotor rotation to provide for ignition of the charge in the connected chamber and after the expansion phase in addition open to an exhaust port in the same side wall to exhaust the products of combustion.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: August 10, 1976
    Assignee: General Motors Corporation
    Inventor: David G. Kokochak