Electricity: electrical systems and devices – Electric charge generating or conducting means – Modification of environmental electric charge
Patent
1984-02-17
1985-09-17
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Electric charge generating or conducting means
Modification of environmental electric charge
361213, 361235, H05F 306
Patent
active
045424349
ABSTRACT:
Positive and negative ion contents of the air within a region are controlled to suppress build-up of electrostatic charges on objects or for other purposes with one or more air ionizing units each having a positive high voltage generator coupled to a first ionizing electrode and a negative high voltage generator coupled to a second spaced apart ionizing electrode. The positive and negative high voltage generators are operated alternately with off times being provided between each period of ion generation of either polarity and the preceding period of generation of ions of the opposite polarity. The off times enable ions of each polarity to disperse outwardly for a controlled distance before substantial intermixing and mutual neutralization takes place. In the preferred form of the invention, the durations of the positive and negative ion generation periods, the off times between such periods and the rates at which each type of ion generation occurs during such periods are each separately controlled to accommodate to different ion requirements of different rooms or to changed conditions in a particular room.
REFERENCES:
patent: 2264495 (1937-06-01), Wilner
patent: 3624448 (1971-11-01), Saurenman
patent: 3711743 (1973-01-01), Bolasny
patent: 3936698 (1976-02-01), Meyer
patent: 4351648 (1979-09-01), Penney
3M Corporation brochure entitled "911 Heated Ionized Air Blower" and carrying no date (2 pages).
Don Yenni, "Basic Electrical Considerations in the Design of a Static-Safe Work Environment, dated 1979, (12 pages).
James R. Huntsman et al., "Charge Drainage vs Voltage Suppression by Static Control Table Tops", Mar. 1982 (3 pages).
L. J. Herauf, "Measurement of Ion Distribution in Ionized Air" (carries no date) (2 pages).
Sales brochure of Ion Systems, Inc., entitled "IONOSPHERE The Ultimate Air Purifier" and carrying no date (1 page).
Gehlke Scott J. S.
Steinman Arnold J.
Yost Michael G.
Ion Systems, Inc.
Moose Jr. Harry E.
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