Patents by Inventor Andrew Swithin Kay

Andrew Swithin Kay 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).

  • PUMP WITH CENTRALIZED SPRING FORCES
    Publication number: 20130084198
    Abstract: A pump including a tappet biased into contact with a camshaft by a return spring is provided. The pump includes a torque transfer reduction interface mechanically interposed between the return spring and the tappet. The torque transfer reduction interface is configured to prevent spring wind-up generated by compressing and expanding the return spring from being transferred to the tappet to prevent the torque from causing the tappet to rotate relative to the camshaft about an axis extending perpendicular to the rotational axis of the camshaft.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 4, 2013
    Applicant: WOODWARD, INC.
    Inventors: Mark Andrew Wood, Antony Owen Parsons, Andrew Swithin Kay