Patents by Inventor Jay N. Hoopes

Jay N. Hoopes 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).

  • Over the shaft fuel pumping system
    Patent number: 5022228
    Abstract: A large flow of high pressure fuel is supplied to a gas turbine engine by mounting a small modified vortex pump over or around a main high speed shaft. The pump includes a plurality of short, stubby impeller blades rotating at a very high speed within a fuel filled annular chamber having an axial fuel inlet and a tangential fuel outlet. A pump booster and priming system ensures the pump fills with fuel during operation.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: June 11, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Jay N. Hoopes, Christopher D. Eick, John R. Williamson
  • Over the shaft fuel pumping system
    Patent number: 4989411
    Abstract: A large flow of high pressure fuel is supplied to a gas turbine engine by mounting a small modified vortex pump over or around a main high speed shaft. The pump includes a plurality of short, stubby impeller blades rotating at a very high speed within a fuel filled annular chamber having an axial fuel inlet and a tangential fuel outlet. A pump booster and priming system ensures the pump fills with fuel during operation.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: February 5, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Jay N. Hoopes, Christopher D. Eick, John R. Williamson