Patents by Inventor Larry L. Hewitt

Larry L. Hewitt 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).

  • Boat lift with articulating arm
    Patent number: 5224569
    Abstract: A boat support framework including an elevating cradle supported between a plurality of cable and pulley containing lift towers via a plurality of roller bearings in engagement therewith. A cable take up axle includes separate cable drums and cables to each lift tower and is controlled from a handwheel or winch operated articulating drive arm and multiple endless chains coupled therebetween. Hinged frameworks pivotally coupled to cross frame members of a base frame and the cradle articulate to support the cradle over the range of lift travel.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: July 6, 1993
    Assignee: Larry L. Hewitt
    Inventors: Larry L. Hewitt, Donald W. Hewitt