Patent ID: 7682296

Claim:
An adjustably resistive pivoting flexure joint assembly comprising at least one airspring assembly having at least one elastomeric bellows intermediate portion with a closed lower plate portion and a closed upper plate portion, both said closed lower plate portion and said closed upper plate portion being mechanically clamped directly to respective ends of said at least one bellows intermediate portion, a lever arm having one end thereof attached directly to the closed upper plate portion of the flexure joint assembly, wherein said at least one elastomeric bellows serves as means for deflecting said lever arm at a variable resistance from a rest position to about 90° of deflection and rotating said lever arm at 360° of rotation, means for attaching said closed lower plate portion to a working/anchoring member or surface wherein said closed lower plate portion is configured to remain rigid and not move when said bellows, closed upper plate portion and lever arm move, a human interface member at a distal end of the lever arm, which is used by a person to exercise a desired body part, wherein a combination of said human interface member, said lever arm and said flexure joint assembly is configured to provide ergonomically resistive therapy for said desired body part; a bicycle type pedal assembly mounted on the lever arm; and means for adjustably and selectively pressurizing the flexure joint assembly, including pressure regulating means for selecting a desired resistance to be applied to said person's desired body part for a selected pressure in said flexible joint assembly and for making adjustments to said resistance by adjusting said pressure in said flexible joint assembly, wherein said pressure regulating means is adjustable between 0-150 psig, and wherein said flexure joint assembly when pressurized at said selected desired resistance is configured to maintain a stored energy level such that an applied force must be exerted by said person to displace said lever arm from a neutral position and said force must be maintained to resist said lever arm's movement back to said neutral position.