Patent ID: 8201464

Claim:
A torque wrench, said torque wrench comprising: a drive member having a surface configured to attach to a work piece to transfer torque to the work piece; a handle attached to the drive member so that force applied to the handle transfers torque to the drive member; a transducer disposed operatively between the handle and the drive member so that the transducer senses the torque transferred from the handle to the drive member and outputs a first signal corresponding to the transferred torque sensed by the transducer; an analog, mechanical input device disposed on the handle that simultaneously defines a set point and indicates the set point; a comparator that receives the first signal from the transducer, that receives the set point, that compares the first signal from the transducer to the set point, and that outputs a second signal based on a predetermined relationship between the first signal and the set point; and a detection mechanism that receives the second signal from the comparator and that generates a human recognizable output in response to the second signal, wherein the mechanical input device does not display a real time measurement of the torque transferred to the work piece prior to reaching the set point.