Patents by Inventor Jefferson B. Hunt

Jefferson B. Hunt 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).

  • Fiber/resin composite ladder and accompanying accessories
    Patent number: 5954157
    Abstract: A combination step and extension ladder manufactured of prestressed filament wound composite material such as fiberglass is disclosed. The inner and outer side rails are molded, filament wound composite material (fiberglass) wherein the fibers are continuous and angularly oriented with respect to the longitudinal axis of the respective side rails. Hinges are provided on each of the inner side rails of the ladder and hinge actuators are located in the front edges of the outer side rails so that the ladder may be folded, unfolded or locked in either a closed, step ladder or straight extension ladder configuration, by depressing the hinge actuators, irrespective of the longitudinal position of the inner rail sections with respect to the outer rail sections.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: September 21, 1999
    Assignee: Fiberlite Technologies, Inc.
    Inventors: Ronald R. Grimes, Jefferson B. Hunt