ESD ground monitor for electrostatic safe work tables

Details ESD ground monitor for electrostatic safe work tables ESD ground monitor for electrostatic safe work tables

1997-10-08

1999-10-19

Hofsass, Jeffrey A.

Communications: electrical

Condition responsive indicating system

Specific condition

340652, 361212, 324510, G08B 2100

Patent

active

059696265

ABSTRACT:
A device and method for monitoring the integrity of a ground connection between an electrostatic apparatus and earth ground. The device and method provide for continuous monitoring of the connection. The device includes an audible and visual alarm if there is a fault in the grounding connection. It also provides an audible and visual alarm if a DC power supply falls below a specified value. A switch is provided for testing the circuit manually to ensure its proper operation.

REFERENCES:
patent: 5051732 (1991-09-01), Robitaille
patent: 5083117 (1992-01-01), Hoigaard
patent: 5317476 (1994-05-01), Wallace et al.
patent: 5422630 (1995-06-01), Quinn et al.

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