Patents by Inventor John C. Napper

John C. Napper 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: 4861051
    Abstract: A rehabilitation walker device is disclosed. The walker device includes a seat a frame a seat support mechanism supporting the seat, handlebars supported by an upright handlebar support mechanism and a centerbar for connecting the seat support mechanism with the upright handlebar support mechanism, a pair of forward wheels pivotally attached to the handlebar support mechanism, and a pair of rear wheels pivotally attached to the frame proximate the seat support mechanism. The seat has a center and a width and the handlebars are located in front of the seat. The forward wheels are located in front of the seat and are separated by a first wheel span. The first wheel span is wide enough to allow sufficient space for a person to walk with both feet within the first wheel span while straddling the centerbar. The rear wheels are located behind the center of the seat and are separated by a second wheel span.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: August 29, 1989
    Inventor: John C. Napper