Patent ID: 6055484
Filing Date: 2000-04-25
Classification: B23P,B25B

Abstract:
A system for monitoring an electrically driven tool having a forward or reverse current flow through the tooling comprising:a current transducer for measuring and converting the forward and reverse currents into electrical signals representative the measured currents;means for electrically computationally processing the electrical signals into other signals representing at least one parameter corresponding to a condition of the tool being monitored which is a function of the current, wherein the means for electrically processing the signals includes a programmable microprocessor configured to identify a portion of the signals representative of the current corresponding to the parametera means for displaying the parameter;wherein the programmed microprocessor is configured to identify a portion of the signals representative of the currents of the tool driving a fastener to its target torque and successfully completing a cycle; andwherein the programmed microprocessor is configured to count a completed cycle, store the count and generate signals when the measured current is the same as the identified and stored parameters.