Patents by Inventor C. Dewayne Bowerman

C. Dewayne Bowerman 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).

  • Patent number: 5064079
    Abstract: A portable wheeled hoisting frame includes two winches. The hoist disassembles, and the parts fit into a backpack. When assembled the frame has an open rectangular base with corner wheels, two upright members, and a top bar between the upper ends of the two upright members extending across above the open base. The primary winch is mounted on the top bar. There are top bar extensions. The hoist can vertically lift objects under the frame, as when straddling a scuttle hole, with the primary winch. A secondary winch attached to the hoisting frame can exert a sideways or downward force for cantilever lifting. The force of the secondary winch will then balance the weight of the object held by the primary winch. The extension bars allow hoisting in numerous ways. An object may also be supported on the frame base for rolling on supporting surfaces. There are two fixed wheels and two swivel castors on the frame.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: November 12, 1991
    Inventor: C. Dewayne Bowerman