Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of ground fault indication
Patent
1992-01-22
1992-11-17
Harvey, Jack B.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of ground fault indication
361212, 340649, G01R 3114, G08B 2100
Patent
active
051646749
ABSTRACT:
A wrist-worn static charge warning device constructed and arranged to remain silent most of the time. The device emits an audible signal in the event that the charged individual wearing the device is approaching a grounded or poorly grounded electronic circuit, thereby warning against possible damage to the circuit before the occurrence of such damage. The device is based on the fundamental concept that movements of static charges can be detected by means of two RC circuits connected in a Master-Slave configuration.
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Harvey Jack B.
Hultquist Steven J.
Regan Maura K.
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