Patent ID: 7603942

Claim:
A synchronizing cylinder comprising: a first chamber in fluid communication with a first mechanism cylinder; and a second chamber in fluid communication with a second mechanism cylinder; wherein the volume of the first chamber is smaller than the volume of the second chamber and the volume of the first mechanism cylinder is smaller than the volume of the second mechanism cylinder so that actuation of the synchronizing cylinder causes the mechanism cylinders to move substantially the same distance at substantially the same speed; wherein the first and second chambers further comprise a piston to move the fluid into or out of the respective chamber; wherein the size of the rod that passes through the first chamber is larger than the size of the rod that passes through the second chamber thereby causing the volume the first chamber to be smaller than the volume of the second chamber; wherein the first and second chambers each have a cap side and a rod side; poppets having an open position in which the cap and rod sides of the first and second chambers are in fluid communication with each other and a closed position in which the cap sides of the chambers are in fluid communication with each other but the rod side of the chambers are isolated from each other; and members combined with the larger diameter rods to aid in actuating the poppets as the pistons are moved from a first position to a second position.