Patents by Inventor Gregory E. Harris

Gregory E. Harris 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).

  • Variable capacity centrifugal pump
    Patent number: 4828454
    Abstract: A variable capacity centrifugal pump capable of directly varying capacity, r output, in response to existing back pressure. The pump comprises a axially movable shroud having female grooves in fluid tight communication with male impeller vanes. The shroud has a top face surface in fluid communication with a control cavity which in turn is in fluid communication with pump back pressure.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: May 9, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joseph H. Morris, Edmund J. Jarski, Gregory E. Harris