Patent ID: 7608022

Claim:
A force conditioning device comprising: a first four bar linkage system including a first top bar and at least one rear bar; a second four bar linkage system operably connected to the first four bar linkage system, the second four bar linkage system including a second top bar positioned underneath the first top bar; the first and second four bar linkage systems operating to provide a mechanical advantage to a resistance means acting on the device in opposition to a force acting on the device, at least three bars of each of the first and second four bar linkage systems pivotally connected in a direct pivotal relationship to at least one other bar of the first and second four bar linkage systems; the second top bar including a flexible member connection portion extending beyond the at least one rear bar in a direction generally away from the other bars of the first four bar linkage; and a flexible member directly associating the resistance means with the flexible member connection portion of the second top bar.