Removably attached seat for a mobility apparatus

A mobility apparatus comprising:

• a handle assembly;
• a base having casters;
• a seat comprising:
• an attachment bracket;
• a seat hub rotatably attached to the attachment bracket in a first axis;
• a first locking mechanism operable to place the seat hub between a first position and a second position;
• a seat arm swivably attached to the seat hub in a second axis, wherein the second axis is substantially orthogonal to the first axis;
• a seating pad rotatably attached to the seat arm in a third axis, wherein the seating pad is caused to pivot into a sitting position;
• a second locking mechanism operable to maintain the seating pad in the sitting position.
• a third locking mechanism operable to place the handle assembly into a plurality of positions corresponding to an operating mode of the apparatus, and maintain the handle assembly in one of the plurality of positions;
• wherein the third locking mechanism comprises:
• a hub fixedly secured to the base, the hub comprising attachment means for the handle assembly;
• a hub ring rotatably secured within the hub;
• a biased sliding lock pin;
• a lock track comprising a plurality of detent positions engageable by the biased sliding lock pin to place the handle assembly into the plurality of positions, and maintain the handle assembly in one of the plurality of positions;
• a gas spring mechanism coupled to the hub ring;
• an actuating mechanism comprising a hand operated lever coupled to the biased sliding lock pin and operable to cause the biased sliding lock pin in the plurality of detent positions;
• and
• a braking mechanism for the casters, wherein the braking mechanism is operable to lock and unlock the casters simultaneously.