Patents by Inventor Earl W. Gabriel

Earl W. Gabriel 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).

  • Pressure indicator for tires
    Patent number: 5687672
    Abstract: A pressure indicator for tires comprised of a lower cylindrical housing dimensioned for removable coupling with a valve stem of a tire. A flexible diaphragm is disposed within the lower cylindrical housing. An upper cylindrical housing is coupled with the lower cylindrical housing. A T-shaped indicating pin extends through the upper cylindrical housing to couple with the flexible diaphragm. A tri-level spring is coupled around the T-shaped indicating pin. A magnifying dome couples with the upper cylindrical housing. The magnifying dome has an indicating chart positioned therein.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: November 18, 1997
    Inventor: Earl W. Gabriel