Apparatus and method for dissipating and discharging electrostat

Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge

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361220, H05F 100

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active

046023100

ABSTRACT:
An apparatus and method is provided to dissipate and discharge electrostatic charge accumulated on an appliance. The device includes an open cell conductive foam body mounted in an enclosure. A plurality of magnets are embedded in the foam body and produce a looped magnetic field of relatively high flux density. A probe has a conductive pick-up head attached to the appliance and an electrical lead extends from the pick-up to make electrical contact with the foam body. A ground contact is embedded in the magnetic field at a position spaced from the electrical lead contact, and a ground wire electrically connects the foam body to ground potential. The method includes the steps of making electrical contact to the appliance by a conductive lead, dissipating the electrostatic charge under the influence of a magnetic field in a conductive foam body, and discharging the electrostatic charge to ground potential.

REFERENCES:
patent: 2568068 (1951-09-01), Harpman
patent: 3991479 (1976-11-01), Dionne
patent: 4398277 (1983-08-01), Christiansen et al.

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