Patents by Inventor Lawrence M. Hillman

Lawrence M. Hillman 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).

  • Sailboat mast deck sealing assembly
    Patent number: 4951588
    Abstract: A sail boat mast deck sealing assembly to provide a watertight seal between the mast and the boat deck is described. The assembly comprises a rigid flange member or collar formed in the same shape as the mast which is usually non-circular. The flange member has a triangular groove between the inner portion of the flange member and the mast. A triangular resilient member is placed in the triangular groove with the base portion protruding above the upper surface of the flange. A rigid cap ring is fastened to the flange and, with pressure, forces the triangular resilient member in the triangular groove thereby forming a watertight seal between the flange member and the mast.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: August 28, 1990
    Inventor: Lawrence M. Hillman