Apparatus and method for glow discharge treatment of a moving we

Details Apparatus and method for glow discharge treatment of a moving we Apparatus and method for glow discharge treatment of a moving we

1994-06-17

1996-02-20

Owens, Terry J.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Plasma

427535, 427536, 21912149, 21912152, 21912159, 204164, 204165, 1562726, 250324, H01T 1900, H05H 124

Patent

active

054931177

ABSTRACT:
Apparatus and method for glow discharge treatment of opposite surfaces of a moving web such as a plastic film or metallic sheet. The web moves in a vacuum housing between two rows of elongated electrodes arranged in a direction transverse to the direction of movement of the web. Coolant flows through an elongated hollow space in each electrode. The electrodes are fitted into a single common socket which is removably attached to the vacuum housing. A shielding member made of metallic material covers only the part of each electrode which is laterally offset to a side of the web. Each shielding member is connected to ground via a conductor and is spaced away from the outer peripheral surface of each electrode by a gap which is sufficiently small to prevent discharging of electricity from occurring in the gap when the web is subjected to glow discharging treatment.

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patent: 5211759 (1993-05-01), Zimmermann et al.
patent: 5318806 (1994-06-01), Montgomery et al.

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