Patents by Inventor Peter G. Clarke

Peter G. Clarke 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).

  • Process for the production of PBT carpet yarn
    Patent number: 4877572
    Abstract: A process for the production of high-quality carpet yarn from PBT having an intrinsic viscosity of 0.9 to 1.2 comprising an integrated spinning-draw texturing process, employing a transport speed to the texturing unit of at least 1,800 m/min.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: October 31, 1989
    Assignee: Davy McKee Aktiengesellschaft
    Inventors: Peter G. Clarke, Ulrich Mirwaldt, Dietmar Wandel
  • Hydraulic control valve for remote receiver
    Patent number: 3939869
    Abstract: A hydraulic control valve for transmitting power from a transmitter to a receiver which is remote from the transmitter. The power is transmitted through an actuating line from the transmitter. The transmitter is in the form of a housing which contains both a pressure relief valve permanently connected to the line and synchronising mechanism for synchronising movement of the transmitter with the receiver.
    Type: Grant
    Filed: August 21, 1973
    Date of Patent: February 24, 1976
    Assignee: Sterling Hydraulics Limited
    Inventors: Peter G. Clarke, Bernard P. Rayner