Patents by Inventor Martin Richard Kirkman

Martin Richard Kirkman 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).

  • Fuel system
    Patent number: 8366404
    Abstract: A fuel system is described that comprises a pressure raising and shut-off valve (PRSOV), and a control valve arrangement operable to control a fuel pressure applied to a part of the PRSOV urging the PRSOV towards a closed position, wherein the control valve arrangement is supplied with fuel at a pressure controlled by a variable fluid pressure potentiometer network including a variable flow restrictor which is variable in response to changes in the position occupied by the PRSOV.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 5, 2013
    Assignee: Goodrich Control Systems
    Inventors: Michael Griffiths, Martin Richard Kirkman
  • Fuel System
    Publication number: 20100158707
    Abstract: A fuel system is described that comprises a pressure raising and shut-off valve (PRSOV), and a control valve arrangement operable to control a fuel pressure applied to a part of the PRSOV urging the PRSOV towards a closed position, wherein the control valve arrangement is supplied with fuel at a pressure controlled by a variable fluid pressure potentiometer network including a variable flow restrictor which is variable in response to changes in the position occupied by the PRSOV.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 24, 2010
    Applicant: Goodrich Control Systems
    Inventors: Michael Griffiths, Martin Richard Kirkman