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US 4,542,434 AGranted
Method and apparatus for sequenced bipolar air ionization
AssigneeIon Systems, Inc.
InventorsScott J. S. Gehlke, Michael G. Yost, Arnold J. Steinman
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AssigneeIon Systems, Inc.
InventorsScott J. S. Gehlke, Michael G. Yost, Arnold J. Steinman
Estimating the term…
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.
In a method of controlling the ion content of air within a predetermined region including the steps of periodically generating positive air ions at a first location and periodically generating negative air ions at a second spaced apart location during the intervals between periods of positive ion generation and wherein said positive and negative ions disperse outwardly from said first and second locations respectively and intermix within said region, the further step comprising:
A method of adjusting the concentrations of positive and negative ions in the air at a predetermined region comprising the steps of:
In apparatus for controlling the concentrations of positive and negative ions within a volume of air, having at least one pair of spaced apart air ionizing electrodes including a positive electrode and a negative electrode, means for applying positive high voltage to said positive electrode, means for applying negative high voltage to said negative electrode, and control means for cyclically and alternately actuating said positive high voltage means and said negative high voltage means, the improvement comprising:
Apparatus for controlling air ion content within a region comprising:
Dependencies are inferred from the claim text.