Patents by Inventor Clifford C. Bigelow

Clifford C. Bigelow 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: 5476429
    Abstract: An exercise device for the occupant of a wheelchair acting as a treadmill which may be used for cardiac stress testing, cardiac or stroke rehabilitation, fitness training, aerobic training or educational/physical games, with the device including a generally inclined ramp having parallel sides, a forward entrance portion, a movable dolly mounted on rails on the sides of the ramp, the dolly having a pair of laterally movable caster capture plates with openings to receive the front casters of a wheelchair and angular rods cooperating with the wheelchair drive wheels acting to adjust the lateral spacing of said plates, locking means for the dolly to retain it in its forward position, separate locking means for locking the dolly in its rearward position when a wheelchair has been moved onto the ramp into operative position, a pair of enlarged openings adjacent the rear edge of the ramp, and a pair of longitudinally movable rollers beneath the ramp and movable between a rear retracted position allowing the wheelcha
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: December 19, 1995
    Assignee: Packer Engineering Inc.
    Inventors: Clifford C. Bigelow, Jerome V. Eck, Terry N. Layton