Segmented ceramic electrode station
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United States of America Patent
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-
May 25, 1999
Grant Date -
N/A
app pub date -
Jul 18, 1996
filing date -
Jul 24, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A corona treatment apparatus has a rotating roller electrode and a stationary electrode assembly for treating material passing over the roller electrode. The stationary electrode assembly includes an electrode support that extends along the roller electrode and is spaced therefrom. A one-piece dielectric element is positioned between the electrode support and the roller electrode with the material to be treated passing therebetween. A plurality of conductive electrode elements are separately movable into a first position in contact with the one-piece dielectric element to produce a corona that treats material passing over the roller electrode. A separate over-the-center spring mechanism is provided to hold each conductive electrode element in the first, treatment position, or in a second, withdrawn position in which no corona is produced.
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