Patents by Inventor Gerald F. Hummert

Gerald F. Hummert 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).

  • Structural plug member and insert tool
    Patent number: 4844152
    Abstract: A plug member and insertion tool arrangement for closing structural openings such as those in gas leaking tubes of a heat exchanger including an inverted cup-like plug member having a circular disc-like base portion with a cantilevering peripheral wall portion extending therefrom and an insertion tool to releasably support, guide and insert the plug member.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: July 4, 1989
    Inventor: Gerald F. Hummert