Wheelchair

Details Wheelchair Wheelchair

2011-06-21

2011-06-21

Dickson, Paul N (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C280S250100, C280S248000, C280S257000, C280S260000

Reexamination Certificate

active

07963539

ABSTRACT:
A wheelchair comprises a main frame and a seat mounted on the main frame. A pair of front wheels and a pair of rear wheels are also mounted on the frame. A propulsion mechanism is provided for driving the rear wheels, the propulsion mechanism comprising an arm lever for forward and back movement and a gear train between the arm lever and the rear wheels.

REFERENCES:
patent: 5167048 (1992-12-01), Geiger et al.
patent: 5947562 (1999-09-01), Christofferson et al.
patent: 6017046 (2000-01-01), Markovic
patent: 7261309 (2007-08-01), Watwood et al.

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