Duct type charge eliminator

Patent · Tue Sep 18 04:00:00 EDT 1984

OSTI ID:6084577

Masuda, S

At least one planar type plasma ion source is positioned in a main duct through which charged materials pass in a manner whereby its active surface producing plasma faces the flow channel of charged materials inside the duct. The plasma ion source has at least one dielectric sheet, at least one corona electrode in operative proximity with one surface of the dielectric sheet and at least one planar type exciting electrode affixed to the opposite surface of the dielectric sheet and covering the entire area facing the corona electrode. A high voltage AC power supply energizes the plasma ion source by producing a high AC voltage and being connected to apply the voltage between the corona and the exciting electrode across the dielectric sheet whereby AC surface coronas serving as an active planar type plasma containing copious positive and negative ions are produced by the corona electrode along the one surface of the dielectric sheet and charged materials entering the flow channel inside the duct are bombarded by ions of opposite polarity from the plasma and are rapidly neutralized in charge during passage through the flow channel.

• Assignee: EDB-85-051131
• Patent Number(s): US 4472756
• OSTI ID: 6084577
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALTERNATING CURRENT
ANIONS
BEAM NEUTRALIZATION
CATIONS
CHARGED PARTICLES
CHARGED-CURRENT INTERACTIONS
CURRENTS
DESIGN
DIELECTRIC MATERIALS
DUCTS
ELECTRIC CHARGES
ELECTRIC CURRENTS
ELECTRODES
ELECTRONIC EQUIPMENT
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
INTERACTIONS
ION SOURCES
IONIZATION
IONS
MATERIALS
PARTICLE INTERACTIONS
PARTICLES
PARTICULATES
PLASMA
POWER SUPPLIES