Patents by Inventor Peter W. Murrell

Peter W. Murrell 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).

  • Apparatus for providing an electrical generator with a constant rotational speed from a variable speed input
    Patent number: 4774855
    Abstract: An electrical generator drive which comprises a power source able to transmit power at a rotational speed which may fluctuate substantially in service, an electrical generator which requires a rotational input of power at a substantially constant speed, and a controllable drive transmission of high rotational inertia coupling together the power source and the electrical generator. The drive transmission comprises an epicyclic gear having an input member driven by the power source, an output member coupled with the electrical generator, and a reaction member, a monitoring device responsive to fluctuations from a predetermined value in the rotational speed of the output member, and a control device including a hydraulic pump/motor unit coupled with the reaction member and controllable by the monitoring device in order to vary the relative rotation between the reaction member and the other members of the epicyclic gear so as to maintain a substantially constant predetermined speed of the output member.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: October 4, 1988
    Assignee: Vickers Shipbuilding and Engineering Limited
    Inventors: Peter W. Murrell, John Calverley, Donald Williams, Douglas J. Thomas