Apparatus for controlling random charges on a moving web

Details Apparatus for controlling random charges on a moving web Apparatus for controlling random charges on a moving web

1982-12-03

1984-12-04

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Electric charge generating or conducting means

With specific power supply

361214, H01T 1904

Patent

active

044868081

ABSTRACT:
Apparatus for neutralizing random electrostatic charges on a moving web that simultaneously leaves the web with either a uniform, positive, negative, or neutral charge. The apparatus includes one or more ion generators having at least one of said generators powered from both AC and DC power sources. An AC powered ion generator emits positive and negative ions that migrate to the moving web and neutralize oppositely charged areas located thereon. At the same time that the ion generator is being activated by AC power, DC power is superimposed on the same ion generator to control ion concentration and therefore the residual web charge.

REFERENCES:
patent: 3414769 (1968-12-01), Hoffman
patent: 3475652 (1969-10-01), Levy
patent: 3699335 (1972-10-01), Giaimo, Jr.
patent: 3716754 (1973-02-01), Weber et al.
patent: 3730753 (1973-05-01), Kerr
patent: 4228480 (1980-10-01), Benwood et al.
patent: 4271451 (1981-06-01), Metz
patent: 4306271 (1981-12-01), Weber
patent: 4383752 (1983-05-01), Kisler

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