Patents by Inventor Gary D. Parola

Gary D. Parola 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).

  • Expansible tube valve
    Patent number: 3942756
    Abstract: An expansible tube valve having inlet and outlet body and closures with a generally cylindrical body enclosure between them. A flexible tube embraces a slotted core and integral enlarged beads around the ends of the tube are confined in accommodating annular recesses. Being so confined, the beads serve as retainer means for the tube ends and function also as body seals, being under moderate compression between cylindrical surfaces on the end closures and the interior of the body enclosure.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: March 9, 1976
    Assignee: Grove Valve and Regulator Company
    Inventors: Richard S. Brumm, Gary D. Parola