Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge – By charged gas irradiation
Patent
1997-07-17
1999-09-07
Fleming, Fritz
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
By charged gas irradiation
361220, H01T 1904, H05F 0306
Patent
active
059496355
ABSTRACT:
A ionizer for neutralizing static electricity generally occurring on synthetic materials during their processing, consists of a row of insulating modules arranged on a metallic shape, connected to the ground. Between the modules, in special slits, on the side faced to the coming charged material, are introduced grounded wires, which make contact to the metallic shape. A high voltage needle is introduced through each insulating module, until makes contact to the conductor of a high voltage cable inserted through the inner part of each module (hot ionizer). The high voltage cable is connected to a high voltage power supply. The high voltage needles can be also capacitively coupled to the high voltage cable (shockless ionizer), connected to a high voltage AC power supply. Between the high voltage needles and the grounded wires occurs a corona discharge which generates ions. A material with a high static charge get neutralized mainly by small electrical discharges to the peaks of the grounded wires. The materials with a small static charge attracts the ions of opposite charge, generated by above corona discharge, until the charge of material becomes neutral. The materials with a average static charge get neutralized by means of both manners.
REFERENCES:
patent: 1489425 (1924-04-01), Chapman
patent: 4092543 (1978-05-01), Levy
patent: 4107755 (1978-08-01), Kiefer
patent: 4227235 (1980-10-01), Bishop
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