Patents by Inventor Robert G. Graves

Robert G. Graves 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).

  • Flush device
    Patent number: 4739770
    Abstract: A flush device in which a first passageway extends between a first opening in a body and a first port in said body, a second passageway extends between a second opening in said body and a second port in said body, a capillary pathway provides communication between said first and second passageways, a retainer for compressing a resilient pad into a sealing relationship with said ports and a projection is provided for pulling the pad away from the ports so as to open the seal between the pad and the ports and permit a large flow of fluid between said first and second passageways.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: April 26, 1988
    Assignee: Hewlett-Packard Company
    Inventors: Thomas P. Stephens, Robert G. Graves, Albert K. Bond, David A. Bristol