Patents by Inventor Randall J. Gronau

Randall J. Gronau 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).

  • Grommet fastener assembly for automobiles
    Patent number: 5542158
    Abstract: A fastener grommet assembly of soft or flexible plastic material which forms a non-porous "bathtub" enclosure that fits into an aperture in the body panel part of the automobile. A depending lug from an interior part of the automobile is provided with a metal retainer member that forms a pliable prong that can be pushed into a snap-fit relationship with the flexible grommet member and thus cause opposing wall portions of the grommet to expand into a seal-tight engagement with the rim of the aperture of the exterior body panel part of the automobile.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: August 6, 1996
    Assignee: Emhart Inc.
    Inventors: Randall J. Gronau, Robert Osterland