Method and apparatus for charging or neutralizing an object using a charged piece of conductive plastic
AssigneeIllinois Tool Works Inc.
InventorsMichael F. Soffa, Scott R. McClintock, Michael A. Jacobs
Life of this patent
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Abstract
A method of charging insulative material includes applying a high voltage to a conductive plastic having a uniform resistance throughout. Insulative material is placed in proximity to, or in contact with, the conductive plastic, thereby charging the insulative material. Further, a device for placing charge on an object proximate to the device includes a conductive plastic having a uniform resistance throughout. A high voltage power supply has an output coupled to the conductive plastic.
Claims5
A method of using a conductive plastic having a uniform resistance throughout as a non-contact charge applicator, the conductive plastic including at least one beveled edge, the method comprising:
- (a) charging the conductive plastic with a high voltage of at least ±30 kV from a power supply embedded in the conductive plastic;
- (b) generating an ion field at the at least one beveled edge;
- and
- (c) placing an object in proximity to the at least one beveled edge of the conductive plastic and within the ion field to apply a charge to the object.
A method of using a conductive plastic having a uniform resistance throughout as a non-contact electrostatic neutralizing device, the conductive plastic including at least one beveled edge, the method comprising:
- (a) applying one of a high voltage alternating current (AC) power supply or a high voltage bipolar power supply to the conductive plastic, the high voltage alternating current (AC) power supply or the high voltage bipolar power supply being embedded in the conductive plastic;
- and
- (b) placing the at least one beveled edge of the conductive plastic in proximity to an object, thereby dissipating a static charge on the object.
A method of placing or removing charge on an object, the method comprising:
- (a) providing a blank of conductive plastic having a uniform resistance throughout;
- (b) beveling at least one edge of the conductive plastic blank;
- (c) applying one of a high voltage alternating current (AC) power supply or a high voltage bipolar power supply to the conductive plastic blank, the high voltage alternating current (AC) power supply or the high voltage bipolar power supply being embedded in the conductive plastic;
- and
- (d) placing the object in proximity to the at least one beveled edge of the conductive plastic blank.
Dependencies are inferred from the claim text.