Patents Assigned to KOP Limited
  • Liquid flow regulator
    Patent number: 6895995
    Abstract: A flow regulator particularly for sub-sea chemical injection at low continuous rates includes a piston moveable in response to differential pressure and controlling via a lever connection an inlet valve. The differential pressure is balanced by a dual rate spring assembly which is positionally adjustable by means of a screw-threaded adjusting rod.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: May 24, 2005
    Assignee: KOP Limited
    Inventors: Douglas F Kirkman, Matthew H Tibbitts