Patent ID: 6527683
Filing Date: 2003-03-04
Classification: A63B,Y10S

Abstract:
An exercise machine comprising:a frame; a weight stack slidably connected to the frame; a primary moveable pulley system engaged with the weight stack comprising: a primary cable having a first end and a second end, wherein the first end is moveable in response to an exercise motion, and the second end is fixed with respect to the first end; and one or more directional pulleys; a secondary moveable pulley system selectively engaged with the weight stack comprising: a floating pulley; and a secondary cable having a first end connected to the floating pulley and a second end selectively engaged with the weight stack; wherein the primary cable is functionally engaged with the one or more directional pulleys and the floating pulley such that when the first end of the primary cable is moved in the exercise motion, the weight stack provides resistance to the exercise motion; and wherein selective engagement of the secondary moveable pulley system with the weight stack changes the mechanical advantage of the primary moveable pulley system.