Patents by Inventor Clarice Nelson

Clarice Nelson 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: 6189907
    Abstract: A treadle cart, having two axles, each axle having one of two pairs of wheels mounted on it, the treadle cart being powered by the pivoting motion of a treadle board which transfers the power from the pivoting of the treadle board through a drive means including a flexible elongated member with two ends that is attached to the under side of treadle board, each of the drive means rotating a power wheel which through a drive train turns a clutch housing, each clutch housing having a clutch rotor mounted in it, each of the pair of clutch rotors alternating in transmitting power to the base wheels of the treadle cart.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: February 20, 2001
    Inventors: Erdick Nelson, Clarice Nelson