Patent ID: 6253644
Filing Date: 2001-07-03
Classification: B23P,B25B

Abstract:
Dual torque wrench comprising:a main housing;two or more single torque wrenches disposed in said main housing and protruding through one open end of said main housing;one or more drive gears disposed in said main housing;driven gears affixed to said single torque wrenches and operable connected through said drive gear;a drive shaft protruding through said main housing and connected to said drive gear;said single torque wrench comprises:a torque piston casing;a drive and driven torque piston disposed in and protruding from each end of said torque piston casing having irregular opposing surfaces urged together by a resilient means with a pre selected spring rate;said resilient means operably connect said torque pistons to adiustably applt a regulated torque to said driven torque piston in response to movement of said drive torque piston.