Patents by Inventor David L. Beard

David L. Beard 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: 5826897
    Abstract: A human powered vehicle, such as a wheelchair or recumbent vehicle, that has a flywheel assisted drive. The human powered vehicle includes a frame that rides upon at least two wheels. A seat is supported by the frame. Adjacent to either side of the seat is a rowing lever used to turn the flywheel. Each rowing lever is coupled to a mechanism that converts the reciprocal movement of the rowing lever into a rotational movement that is applied to the flywheel. The flywheel is coupled to at least one of the wheels that supports the frame, via a transmission that selectively transfers the rotational movement of the flywheel to the wheels. As a result, the rowing levers do not directly drive the wheels of the vehicle. Rather,the rowing levers drive the flywheel and the flywheel drives the wheels.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: October 27, 1998
    Inventor: David L. Beard