Patents by Inventor Frank S. Dennis

Frank S. Dennis 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
    Patent number: 4656689
    Abstract: There is disclosed an easy to install grommet device for protecting conduit passing through a wall opening and for providing an air seal between the conduit and the edge of the wall around the wall opening. The grommet device has a relatively stiff fastener portion with projections extending therefrom and locking devices at the ends of the projections for engaging the edges of the wall around the wall opening. An elastomeric seal portion receives the projections and has an aperture of smaller dimensions than the outside dimensions of the conduit.
    Type: Grant
    Filed: April 1, 1986
    Date of Patent: April 14, 1987
    Assignee: Molded Products Company
    Inventor: Frank S. Dennis
  • Balance exerciser
    Patent number: D276062
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: October 23, 1984
    Assignee: Molded Products Company
    Inventor: Frank S. Dennis