Pneumatic powered mobility control systems

A personal mobility device comprising:

• a frame;
• a plurality of wheels attached to the frame and comprising a first drive wheel;
• a first pneumatic motor in operative connection with the first drive wheel;
• a source pressurized gas;
• a control system comprising a manually operated actuator to control flow of gas from the source of pressurized gas to the first pneumatic motor, and
• a braking system actuator to actuate the braking system comprising a valve in fluid connection with the source of pressurized gas, the valve of the braking system actuator being in fluid connection with a valve system which activates the valve of the brake system actuator to actuate the braking system each time the manual operated actuator is in a predetermined resting state, the predetermined resting state occurring in the absence of manipulation of the manually operated actuator by an operator.

A personal mobility device comprising:

• a frame;
• a plurality of wheels attached to the frame and comprising a first drive wheel on a first side of the frame and a second drive wheel on a second side of the frame;
• a first pneumatic motor in operative connection with the first drive wheel;
• a second pneumatic motor in operative connection with the second drive wheel;
• a source pressurized gas;
• a control system comprising a manually operated actuator having a control valve actuator attached thereto, and a plurality of control valves in operative connection with the manually operated actuator, at least one of the plurality of control valves controlling flow of pressurized gas from the source of pressurized gas to the first pneumatic motor and at least one other of the plurality of control valves controlling flow of pressurized gas from the source of pressurized gas to the second pneumatic motor, wherein each of the plurality of control valves comprises a flow actuator and a follower in operative connection with the flow actuator, the follower of each of the plurality of control valves being in contact with a surface of the control valve actuator which has a predetermined surface conformation configured to provide a predetermined output for each of the plurality of control valves as determined by manipulation of the portion of the manually operated actuator configured to be contacted by an operator.