Patent ID: 6274040
Filing Date: 2001-08-14
Classification: C02F,Y10S

Abstract:
An apparatus for removing electrostatic charges from a high resistivity liquid, comprising:a conduit for directing the high resistivity liquid onto a selected object, the selected object having a surface, the conduit including an outlet through which the high resistivity liquid exits the conduit before striking the selected object;a conductive element provided adjacent the outlet of the conduit such that the high resistivity liquid contacts the conductive element before exiting through the outlet; anda voltage applying means for applying a specific voltage to the conductive element and for setting a potential of the conductive element to a set potential such that the surface of the selected object attains zero potential when the high resistivity liquid is being supplied from the conduit to strike the selected object,wherein the voltage applying means is a DC power supply arranged between the conductive element and the ground, andwherein the voltage applying means is further provided with a potential controller for controlling an occurred potential of the power supply between the conductive element and the DC power supply.