Patent ID: 8074598

Claim:
A coating system for delivering non-conductive liquid onto a roller, comprising: a) a reservoir spaced from the roller for holding the non-conductive liquid; b) a microfludic structure including: i) at least two substantially parallel, spaced-apart microelectrodes, each having one end positioned in non-conductive liquid in the reservoir and the other end extending towards a surface of the roller; and ii) a non-conducting surface supporting the at least two substantially parallel, spaced-apart microelectrodes, the surface having one end positioned in the liquid in the reservoir and the other end positioned adjacent to the surface of the roller; and c) an electric power source connected to the at least two substantially parallel, spaced-apart microelectrodes for supplying electric power to the microelectrodes so that a non-uniform electric field is produced that draws non-conductive liquid in the reservoir across the non-conducting surface, parallel to the at least two substantially parallel, spaced-apart microelectrodes, towards the roller and delivers the drawn non-conductive liquid to the surface of the roller.