Patent ID: 6517891
Filing Date: 2003-02-11
Classification: B05B,F04B,Y10T

Abstract:
A method of providing fluid under pressure to a dispensing gun with a metering pump connected to a motor, the dispensing gun being opened and closed to dispense fluid onto a substrate being carried by a conveyor past the dispensing gun, the method comprising:changing a conveyor speed at a rate of change; detecting pressures of the fluid at the dispensing gun while the conveyor speed is changing and the dispensing gun is dispensing fluid; detecting conveyor speeds; changing a pressure of the fluid at the dispensing gun in response to detecting the pressures and the conveyor speeds, so that the pressure of the fluid at the dispensing gun changes at a rate tracking a rate of change of the conveyor speed; detecting a full conveyor speed; and thereafter automatically controlling a flow of the fluid at the dispensing gun as a function of only the full conveyor speed.