Patent ID: 6543708
Filing Date: 2003-04-08
Classification: B05B,Y02P

Abstract:
A gas-controlled apparatus for spraying electrically charged particulate matter, comprising:(a) a chamber having a surface suitable for electrically charging the particulate matter and an opening through which the particulate matter exits the chamber; (b) a trigger-activated valve which releases a first compressed gas into a first tubing causing a pressure increase in the first tubing; (c) a first pressure activated valve which releases a second compressed gas into the chamber in response to the pressure increase in the first tubing; (d) a second pressure activated valve which releases a third compressed gas into the chamber in response to the pressure increase in the first tubing; (e) a means for delivering the particulate matter to the chamber where it mixes with the second compressed gas and the third compressed gas and is expelled through the opening.