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Corona Ozone Removal using a Baffled Depressurized Air System

IP.com Disclosure Number: IPCOM000089443D
Original Publication Date: 1977-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Stack, JB: AUTHOR

Abstract

This article describes an apparatus for the removal of ozone from a corona generator housing employing low airflow suction from the corona housing itself without the exposure of corona arcing.

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Corona Ozone Removal using a Baffled Depressurized Air System

This article describes an apparatus for the removal of ozone from a corona generator housing employing low airflow suction from the corona housing itself without the exposure of corona arcing.

A corona housing 10 is extruded with two chambers, open corona chamber 11 and closed air chamber 12, separated by a horizontal wall 13.

Slots 14 in wall 13 are located under end shields 15, and provide an airflow path from corona chamber 11 to air chamber 12. A suction connection 16 creates a low airflow from chamber 11 to chamber 12 through slots 14. In that manner, ozone ions are effectively removed from corona chamber 11 by the airstream at low flow rates. With slots 14 under the end shields 15, corona generator wires do not arc to the slots.

Locating the corona near a drum surface 17 (as in an electrostatic copy machine) permits the corona chamber 11 to act as a nearly enclosed plenum with small openings on each side due to drum curvation. This secondary plenum pulls air along the entire length of the corona chamber 11, thus drawing ozone from the entire length of corona chamber 11 through slots 14.

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