Grounded magnetic device for removing static charges

Details Grounded magnetic device for removing static charges Grounded magnetic device for removing static charges

1992-01-21

1994-07-19

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

Of paper or paper handling machine

361220, H05F 300

Patent

active

053315030

ABSTRACT:
A device for removing static charges from a moving paper web includes two grounded and shielded permanent magnets with means to support each magnet on opposite sides of the moving web with the polarities of each magnet so oriented that the charge-neutral center plane of the magnet is perpendicular to the path of the web. The device removes static charges by exposing the paper web to a grounded magnetic field first of one polarity and then to a grounded magnetic field of the opposite polarity.

REFERENCES:
patent: 1668049 (1928-05-01), Clinton et al.
patent: 4494166 (1985-01-01), Billings et al.
patent: 5041941 (1991-08-01), Carter et al.
patent: 5121285 (1992-06-01), McClure
patent: 5150273 (1992-09-01), Le Vantine

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