Granted Patent B2

US 7,562,589 · App. 11/487,252 · Granted Jul 21, 2009

Abstract

Claims (12)

1. An electronic torque wrench for engaging a workpiece, comprising:

a wrench body;

a wrench head disposed on said wrench body, said wrench head being configured to engage the workpiece;

a grip handle disposed on said wrench body opposite said wrench head;

a user interface carried by said wrench body, said user interface including a liquid crystal digital display with a first readout and .a second readout, and an input device for inputting a preset torque value, said first readout being a numeric display and said second readout being a bar graph display for indicating the proximity of an applied torque value to a preset torque value and, said bar graph display including:

a bar graph having a predetermined length;

a frame indicating said predetermined length of said bar graph;

a plurality of segments disposed along said frame within said predetermined length, each said segment being operable between a visible state and a non-visible state and indicating an equivalent selected percentage of said preset torque value, each said segment being discernable when in said viewable state from other said segments in said viewable state; and

an indicator mark located at a position adjacent said bar graph, said indicator mark indicating when said applied torque value approximately equals a selected percentage of said preset torque value,

wherein said first readout displays a peak torque value continuously during operations and said second readout displays an applied torque value continuously during operations.

2. The electronic torque wrench of claim 1 , wherein said position of said indicator mark corresponds to said selected percentage of seventy-five percent.

3. The electronic torque wrench of claim 1 , wherein said indicator mark depends inwardly from said frame.

Assignments (12)