Patents by Inventor Henry J. Holzhauer

Henry J. Holzhauer 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).

  • Water ski tow harness float
    Patent number: 4378750
    Abstract: A tubular float for use in a water ski tow device. The float has a hollow shaft pulley in one end thereof and a slot in the other end thereof. A hitch rope is attached to the transom of the boat at locations displaced from the central axis of the boat. The hitch rope is roved through the pulley. A tow rope is inserted through the slot and passed along the tubular body of the float through the hollow shaft of the pulley back along the hollow body of the float through the slot from an opposite direction and then tied or spliced to the main length of the tow rope to form a tow structure not susceptible to failure in the event of structural damage to the float.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: April 5, 1983
    Assignee: Berkley and Company, Inc.
    Inventor: Henry J. Holzhauer
  • High strength, low stretch braided rope
    Patent number: 3968725
    Abstract: A multi-filament rope which comprises a blend of filaments braided together to form a composite line structure. The core of the structure consists primarily of polyimide of an aromatic tetracarboxylic acid dianhydride, with the sheath consisting primarily of polyolefin fibers selected from the group consisting of polypropylene and polyethylene braided over the core.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: July 13, 1976
    Assignee: Berkley & Company, Inc.
    Inventor: Henry J. Holzhauer