Patents by Inventor Ena M. Rayment

Ena M. Rayment 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).

  • Wheelchair
    Patent number: 4247125
    Abstract: A wheelchair is constructed so as to be able to mount curbs, and overcome similar obstacles. In front and above each main wheel of the wheelchair, an auxiliary wheel or wheels are mounted, so that the auxiliary wheels will contact the obstacle at a point on their circumference below their center in such a way that they are able to ride up over the obstacle and lift the main wheels to a position where they can do likewise.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: January 27, 1981
    Inventor: Ena M. Rayment