Patent ID: 9550228
Date: 2017-01-24
CPC Classifications: B21J,F15B

Claim:
1. A fastener installation tool, comprising: a nose assembly including an anvil and a collet and having a longitudinal axis, said nose assembly being adapted to apply an axial force in a pull direction and in a return direction to a fastener along said longitudinal axis of said nose assembly; a first cylinder having a pull side, a return side, and a longitudinal axis that is parallel to said longitudinal axis of said nose assembly; a second cylinder having a pull side, a return side, and a longitudinal axis that is parallel to said longitudinal axis of said nose assembly, said longitudinal axis of said second cylinder being diametrically opposed to said longitudinal axis of said first cylinder about said longitudinal axis of said nose assembly, wherein said pull side of said first cylinder is in fluid communication with said pull side second cylinder and said return side of said first cylinder is in fluid communication with said return side of said second cylinder; a first piston disposed within said first cylinder, said first piston being adapted to move with respect to said first cylinder along said longitudinal axis of said first cylinder; a second piston disposed within said second cylinder, said second piston being adapted to move with respect to said second cylinder along said longitudinal axis of said second cylinder; and a yoke connecting said nose assembly, said first piston, and said second piston, such that motion of one of said first and second pistons along said longitudinal axis of a corresponding one of said first and second cylinders causes corresponding motion of at least a portion of said nose assembly along said longitudinal axis of said nose assembly and causes corresponding motion of another one of said first and second pistons along said longitudinal axis of a corresponding one of said first and second cylinders.