Patents by Inventor Herman Parduhn

Herman Parduhn 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).

  • Dial tire pressure gage
    Patent number: 3999430
    Abstract: A dial pressure gage having a back-check valve with hand-operated pressure-relief control for maintaining readout on the gage for as long as desired combined with a length of flexible hose and quick-disconnect coupler for easy adaptation to and remote sensing of pressure.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: December 28, 1976
    Assignee: G. H. Meiser & Co.
    Inventor: Herman Parduhn