System for indicating fault condition on operator's electrostati

Details System for indicating fault condition on operator's electrostati System for indicating fault condition on operator's electrostati

1993-06-07

1996-05-21

Peng, John K.

Communications: electrical

Condition responsive indicating system

Specific condition

324509, 324510, 324557, 361 90, 361212, G08B 2100

Patent

active

055193846

ABSTRACT:
A system for indicating fault condition on operator's electrostatic discharge protection equipment includes for an operator wearing ESD protection equipment comprising: a conductive wrist-strap in electrical contact with the operator's body, and an electrical wiring to a local ground, a portable system to alert the operator when a problem (cut or poor electrical connection) occurs with wiring to the ground, or when an electrical field reaches a predetermined value at the operator's wrist.
In one embodiment, the invention also includes a device for memorizing that an ESD event has occurred.

REFERENCES:
patent: 4016488 (1977-04-01), Stevens
patent: 4558309 (1985-12-01), Antonevich
patent: 4638399 (1987-01-01), Maroney et al.
patent: 4710751 (1987-12-01), Webster
patent: 4785294 (1988-11-01), Campbell
patent: 4800374 (1989-01-01), Jacobson
patent: 4859992 (1989-08-01), Hoigaard
patent: 5218306 (1993-06-01), Bakhoum
H330, Burich et al; Sep. 1, 1987 (Statutory Invention Registration).

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