Electricity: electrical systems and devices – Electric charging of objects or materials – By charged gas irradiation
Patent
1995-01-31
1996-08-27
Fleming, Fritz M.
Electricity: electrical systems and devices
Electric charging of objects or materials
By charged gas irradiation
361213, 361230, H05F 306
Patent
active
055507034
ABSTRACT:
An air ionizing device that prevents contaminant buildup on the electrodes, comprising a housing that includes a low pressure plenum that meters dry gas to flow near an electrode, and the electrode is surrounded by an annular shaped shroud. The housing and shroud are configured to provide a laminar flow of dry gas around the electrode, such that moist room-air is prevented from reaching the electrode during ionization. The device may further include a plurality of electrodes and shrouds spaced laterally along an elongate housing, and a high pressure plenum to distribute gas at a plurality of locations to the low pressure plenum. A plurality of mounting bars connect each of the electrodes to wiring inside the low-pressure plenum, the wiring routed to a high voltage power supply. The outside of the housing is formed of smooth concave-shaped surfaces to avoid interfering with existing room-air flow. The air-ionizing device is low maintenance and inexpensive to manufacture.
REFERENCES:
patent: 3619719 (1971-11-01), Waller et al.
patent: 4048667 (1977-09-01), Brennecke
patent: 4333123 (1982-06-01), Moulden
patent: 4528612 (1985-07-01), Spengler
patent: 4635151 (1987-01-01), Le Vantine
patent: 4750080 (1988-06-01), Cumming et al.
patent: 5116583 (1992-05-01), Batchelder et al.
Alvarez Jose A.
Beyer Douglas H.
Williams Eugene V.
Fleming Fritz M.
Richmond Technology, Inc.
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