Application Number: 00108394
Application Date: 2000.05.17
Publication Number: 1283539
Publication Date: 2001.02.14
Priority Information: 1999/8/5 US 09/369,006
International: B23P19/06;B25B29/02;F16B31/04
Applicant(s) Name: John K. Johncoss
Inventor(s) Name: John K. Johncoss
Patent Agency Code: 11038
Patent Agent: liu zhibeng
Abstract A fastening device comprising a bolt member, a nut to be turned, and a torque power tool. The bolt member includes a rod and a washer having an axis, the rod having at least two portions located substantially at its ends. The washer has opposite two bearing faces extending substantially perpendicular to the axis and being subjected to turning friction. The torque power tool has a first drive structure and a second drive structure, during operation of the torque power tool a turning friction of the washer is added to a turning friction of the one portion of the rod, so that the nut to be turned turns while the bolt member remains stationary.