Patent ID: 6434808
Filing Date: 2002-08-20
Classification: B25B,Y10T

Abstract:
A hydraulic assembly tool comprising:a tool fixed portion having a proximal end and a distal end, said tool fixed portion including a hydraulic cylinder, said hydraulic cylinder having a fluid pressure port at said proximal end of said tool fixed portion, said fluid pressure port for receiving a fluid having a controllable pressure, said tool fixed portion including a fixed jaw; a tool moveable portion including a moveable jaw and a piston disposed in said hydraulic cylinder, said piston to receive a hydraulic force from such pressurized fluid; a connecting member attaching said moveable jaw to said piston, said connecting member including male threads for engaging a threaded bore in said piston; a compression spring engaging said tool fixed portion and said tool moveable portion, said compression spring urging said tool moveable portion including said moveable jaw in a direction opposite a direction of said hydraulic force; whereby increasing such pressure of such fluid causes said moveable jaw to move in a direction of said hydraulic force, and decreasing such pressure of such fluid permits said spring to move said tool moveable portion including said moveable jaw in a direction opposite said direction of said hydraulic force.