Apparatus for corona discharge treatment of an article

Details Apparatus for corona discharge treatment of an article Apparatus for corona discharge treatment of an article

1993-12-21

1995-11-14

Walsh, Donald P.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

422907, B01J 1908

Patent

active

054664233

ABSTRACT:
An apparatus for corona discharge treatment of an article, and in particular an article comprising a conductive composite, includes a first electrode, which is a rotating, high-frequency voltage electrode and a second electrode, which is preferably a translation table, disposed with respect to the high-frequency voltage electrode so as to provide a return path to ground. The translation table supports the article to be treated, and oscillates with respect to the first electrode. Since translation table supports the article to be treated, the article itself is grounded, which is important when treating conductive composite articles. An adjustment mechanism provides a constant gap between the high-frequency voltage electrode and the article, so that the voltage does not seek the article. This enhances the efficiency of the corona treatment of the article. The first electrode rotates continuously and independently of the motion of the article in order to dissipate heat from the high-frequency voltage electrode. This arrangement makes the apparatus particularly useful for treating articles comprising conductive fibers, since such articles have relatively high power requirements.

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