Patent ID: 7900945

Claim:
An all-terrain wheelchair comprising: a. a primary frame; b. a right rear wheel frame connected to the primary frame; c. a left rear wheel frame connected to the primary frame; d. a right rear wheel including an internally geared hub, the right rear wheel releasably retained in the right rear wheel frame; e. a left rear wheel including an internally geared hub, the left rear wheel releasably retained in the left rear wheel frame; f. a right front sprocket coupled to the internally geared hub of the right rear wheel; g. a left front sprocket coupled to the internally geared hub of the left rear wheel; h. a right push bar coupled to the right front sprocket and arranged to actuate movement and braking of the right rear wheel; and i. a left push bar coupled to the left front sprocket and arranged to actuate movement and braking of the left rear wheel, wherein the right push bar and the left push bar are independently operable.