Electrostatic discharge shield for switches

Details Electrostatic discharge shield for switches Electrostatic discharge shield for switches

1993-03-01

1994-02-01

Pellinen, A. D.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

200305, 361220, H05F 302, H02H 104

Patent

active

052837106

ABSTRACT:
An electro-static discharge shield on the external non-finger contact surface of a switch makes a contact between the shield itself and the grounded chassis. Since the shield has substantially lower resistance than the surface or inner circuitry of the switch, external electro-static discharge introduced on the surface of the switch flows through the shield to ground via the grounded chassis to prevent destruction or interruption of the circuit.

REFERENCES:
patent: 3621164 (1971-11-01), Backer
patent: 3780345 (1973-12-01), Earman, Jr.
patent: 4745517 (1988-05-01), Pitts
patent: 4800374 (1989-01-01), Jacobson
patent: 4809044 (1989-02-01), Pryor et al.
patent: 4814566 (1989-03-01), Sigl
patent: 4868702 (1989-09-01), Itou et al.
patent: 5210395 (1993-05-01), Freeman

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