Patent ID: 7490881

Claim:
A long travel gripper comprising: first and second end caps; first, second and third guide rails extend between the first and second end caps; wherein the first, second and third guide rails are parallelly spaced and each having a cross-section that is positioned at an acute angle with respect to each other; first and second jaws, each receiving the first, second and third guide rails; wherein the first and second jaws move rectilinearly along the first, second and third guide rails; a first piston assembly comprising: a first piston rod located between the first, second and third guide rails; wherein at least a portion of the first piston rod is disposed in a portion of the first jaw; and a first piston coupled to the first piston rod and located in a cavity in the first jaw; wherein the first piston assists moving the first jaw; and a second piston assembly comprising: a second piston rod located between the first, second and third guide rails; wherein at least a portion of the second piston rod is disposed in a portion of the second jaw; and a second piston coupled to the second piston rod and located in a cavity in the second jaw; and wherein the second piston assists moving the second jaw.