Electricity: electrical systems and devices – Electric charging of objects or materials
Patent
1991-06-14
1993-11-23
Pellinen, A. D.
Electricity: electrical systems and devices
Electric charging of objects or materials
361230, 264 26, 4251748E, H01T 1900
Patent
active
052649890
ABSTRACT:
A device for treatment of formed plastic articles using a corona discharge and an air flow which is comprised of a pair of spaced apart hollow air flow housings, each defining a plurality of air flow passageways therein, a pair of electrode mounting plates adapted to house a plurality of spaced, staggered electrode pairs, one plate connected to each said housing, a treatment zone created by and between said mounting plates for the passage of work pieces therethrough, together with any suitable source of high voltage electricity to energize said electrodes and air induction and retrieval means for providing an air flow in said treatment zone. In a first embodiment of the invention, both housings are pressurized with a temperature controlled air flow which in turn passes through said air flow passageways through the mounting plates and around the electrodes, into the treatment zone. The air flow is retrieved by an evacuation apparatus located on the floor of the device directly below the treatment zone. In a second embodiment, both air flow housings are negatively pressurized to draw ambient air into the treatment zone, around the work pieces and electrodes, through the mounting plates and air flow passageways, where the air flow is exhausted through an appropriate exhaust apparatus.
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Fleming Fritz M.
Pellinen A. D.
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