Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1984-01-06
1987-03-10
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
128908, 324 51, 340649, 340652, 361212, 361220, G08B 2300
Patent
active
046493743
ABSTRACT:
An electrostatic system monitor and method for monitoring the operation of static control equipment such as conductive workbench and floor mats, conductive wrist straps, and the integrity of ground connections and soldering irons and to activate indicators and alarms when the static control equipment deteriorates or malfunctions by having resistances outside of predetermined values and ranges of resistance. The electrostatic system monitor also provides for the detection of unsafe voltage potentials on soldering irons, and for a surface resistance probe for measuring the surface conductivity of conductive surfaces of the static control equipment.
REFERENCES:
patent: 2207202 (1940-07-01), La Deau
patent: 3040211 (1962-06-01), Caldwell
patent: 3290668 (1966-12-01), Perretta
Electrical Overstress/Electrostatic Discharge Symposium Proceedings, Orlando, Fla.; "Test Methods for Static Control Products" by J. R. Huntsman et al., Sep., 1982.
ESD Product Description, Evaluation Engineering, Oct., 1983, p. 82, last paragraph.
ESD Products, Evaluation Engineering, Oct., 1983, p. 88, "Resistance Interval Meter Tests Wrist Straps".
Dorr Robert C.
Myer Daniel
Rowland James L.
Spectrascan, Inc.
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