Patent ID: 7686744

Claim:
A bouncing apparatus, comprising: a carriage assembly that can support a user, the carriage assembly having an exterior shell defining an interior chamber; a foot being operable to extend away from and retract toward the carriage assembly; a piston connecting the foot and the carriage assembly, the piston effecting extension and resisting retraction of the foot, and at least a portion of the piston being within the interior chamber; a plurality of tension elements in operative contact with the piston and being at least partly contained within the interior chamber, at least some of the plurality of tension elements being mountable in an operative state and demountable in an inoperative state with respect to the piston; and a connector attached to a first end of a first one of the plurality of tension elements, the connector being adjustable along a longitudinal axis of the first tension element and being operable to adjust a tension of the first tension element.