Patents by Inventor Thomas G. Kelso

Thomas G. Kelso 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: 7055840
    Abstract: A wheelchair that enables its occupant to lower and raise their self to and from the surface on which the wheelchair is resting so that the occupant may enter the wheelchair from the surface without the aid of another person, the wheelchair a lower support frame, a seat frame assembly vertically movable relative to the lower support frame, a lifting assembly connected to the lower support frame and to the seat frame assembly, a planar ramp rotatably connected to the seat frame, the planar ramp rotating to form an inclined plane relative to the plane of the seat frame, the planar ramp rotating to a vertical position relative to the horizontal seat beneath the horizontal seat when the seat frame assembly is at its highest vertical position, and a footrest rotatably, the footrest rotating to a horizontal position when the seat frame assembly is at its highest vertical position, the footrest rotating downward beneath the ramp when the seat frame assembly is at its lowest vertical position.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: June 6, 2006
    Inventor: Thomas G. Kelso