Tool and associated methods for controllably applying torque...

Measuring and testing – Dynamometers – Responsive to torque

Reexamination Certificate

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Reexamination Certificate

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07062979

ABSTRACT:
A torque tool and an associated method are provided which apply operator-defined levels of torque to a threaded fastener. In one aspect, a portable, battery powered torque tool controls the motor to slow further advancement of the threaded fastener once the torque that has been applied to the threaded fastener has reached a predefined threshold. In another aspect, a torque tool monitors a measure of torque applied to a threaded fastener more frequently once the torque applied to the threaded fastener has reached a predefined threshold. A method of defining a mathematical relationship between a first measure provided by a torque transducer of torque applied to a threaded fastener and a second measure provided by a torque measurement reference device of torque applied to the threaded fastener is also provided such that the measure of torque provided by the torque transducer can be calibrated.

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SCHATZ®Advanced Quality—Home—Inspect; 2001 SCHATZ USA Inc; 6 pages; available at <http://www.schatz-usa.com> and <http://www.schatz-usa.com/prod02.htm> (visited Jan. 10, 2003).

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