G - Physics – 08 – B
Patent
G - Physics
08
B
324/45
G08B 21/00 (2006.01) G01R 27/20 (2006.01)
Patent
CA 1274877
Abstract of the Disclosure A personnel antistatic test device includes a conductive shoe plate adapted to be stood upon by the person to be checked, a jack for receiving the plug of a wrist strap worn by the person to be checked, and cir- cuitry for measuring effectiveness of static discharge paths through the wrist strap and through the person's footwear. Electrical circuitry is provided for measuring resistance from a touch plate, through the person's body, through the wrist strap and its lead wire. In the footwear checking mode, resistance is measured from the touch pad through the person's body, through the stockings and shoes to the shoe plate. appropriate resistance range values are provided for the wrist strap and shoe check mode, and indicator lights are activated showing a satisfactory static discharge path, a hazard condition due to low resistance, or an unacceptable static discharge path due to high resistance.
550635
Cray Research Inc.
Gowling Lafleur Henderson Llp
Jacobson Terry W.
LandOfFree
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