US Patent 7264576 Elliptical exercise device

An elliptical exercise machine in which elongate foot pedaling members are rotatably connected to a crank assembly including a pair of diametrically opposed cranks. Toward one end of each foot pedaling member, an arm is pivotally mounted to the exerciser frame and has a free end with a roller that rollably supports the end of the foot pedaling member. A spring is mounted between the frame and each arm. The springs reduce shock and jarring movement for the user as the user traverses generally elliptical paths using the two foot pedaling members.