Patent ID: 6490952
Filing Date: 2002-12-10
Classification: B25B

Abstract:
A fastening system, comprising a bolt member; a nut to be turned; and a torque power tool operative for applying a torque to said bolt member and torque to said nut to be turned simultaneously, so that during turning of said nut, said bolt member does not turn or twist due to torsion or side load, said bolt member including a rod and a washer having an axis, said rod having at least two portions located substantially at ends of said rod, one of said portions being a threaded portion and located at one of said ends of said rod to connect with said nut to be turned while another of said portions located at the other of said ends of said rod is adapted to connect with an object, said washer having two opposite bearing faces extending substantially perpendicular to said axis and being subjected to turning friction resulting from turning of said nut by said power tool, said bearing faces including an upper bearing face adapted to cooperate with a bearing face of said nut to be turned and a lower bearing face adapted to cooperate with a bearing face of an object to be fastened, said torque power tool having first means connectable with said bolt member to apply a first force to said one portion of said rod and to said washer in one direction, and second means connectable with said nut to be turned to apply an equal second force in an opposite direction, so that during operation of said torque power tool a turning friction of said washer is added to a turning friction of said one rod and said first force is applied simultaneously to said washer and said one rod at all times during the operations, so that said nut to be turned turns while said bolt remains stationary.