Patents by Inventor Peter G. Warwicker

Peter G. Warwicker 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).

  • Patent number: 4276000
    Abstract: A fuel pumping apparatus comprises a pump barrel which defines a bore accommodating a reciprocable plunger. The housing part is provided which is held in sealing engagement with the barrel and in which there is formed a first passage through which fuel flows from the pumping chamber defined in part by the bore, to an outlet and a second passage formed in the housing part and through which fuel can be spilled from the pumping chamber under the control of a valve means including a valve member slidable within a bore. No ports or grooves are formed on the pumping plunger at its end which defines a wall of the pumping chamber.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: June 30, 1981
    Assignee: Lucas Industries Limited
    Inventor: Peter G. Warwicker