Gas separation: apparatus – Electric field separation apparatus – With indicating – signal – or alarm means
Patent
1995-02-06
1996-01-16
Chiesa, Richard L.
Gas separation: apparatus
Electric field separation apparatus
With indicating, signal, or alarm means
55356, 96 55, 96 68, 96 69, 96 80, 96 97, 96 98, 323903, 361226, 361235, B03C 332
Patent
active
054844720
ABSTRACT:
A small, battery-powered air purifier can be clipped to a wearer's front shirt pocket or worn suspended from a cord about the wearer's neck. The device includes a housing containing a compact circuit that transforms direct current provided by the battery into a negative high voltage pulsating current which is connected to a sharp metal point contained within a chamber inside the hollow housing. A corona discharge forms on the sharp point, ionizing air molecules and any particulates, and generating ozone. An opening into the chamber is covered by a noncorrosive metal grid connected to the positive terminal of the battery. The negative ions are attracted to this grid, thereby completing an electrical circuit. Movement of the ions to the grid results in mass movement of air which causes a stream of air to emerge through the grid. As the air passes the grid, negatively charged particulates are deposited on the grid. The cleansed air stream, containing traces of ozone and negative ions, can be directed to flow across the face of the user, thereby limiting the contact of contaminated ambient air with the eyes and nasal passages of the user. An activated charcoal filter pad can be attached to the device to interact with the cleansed air stream to reduce the ozone level.
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Wein Products, Inc. Brochure, Los Angeles, Calif., Undated.
Wein Products, Inc. Brochure, "Air Supply VI-350M", Los Angeles, Calif., undated.
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