Patents by Inventor Edward M. Pennington

Edward M. Pennington 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).

  • Automatic vacuum urinal flush mechanism
    Patent number: 4520513
    Abstract: An automatic flushing apparatus for vacuum flow system urinals. A pressure ensing switch responds to the hydrostatic pressure resulting from one or two urinations and directs the system vacuum to both a water dispensing valve and the main discharge valve to automatically flush the system with a measured amount of water to prevent odors and soil drain scale buildup.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: June 4, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Milton W. Raupuk, Jr., Edward M. Pennington