Patent ID: 8771799
Filing Date: 2014-07-08
Classification: B05B,F04B

Abstract:
1. A method for applying a viscous fluid to a surface at a prescribed distance, said method comprising steps: providing a pulsating pump having a pump cycle; said pulsating pump repeating said pump cycle at a pulse repetition rate; said pulsating pump delivering said viscous fluid to a swirl chamber nozzle at a varying flow rate during said pump cycle; and spraying said viscous fluid on said surface using said pulsating pump to deliver said viscous fluid as a sequence of pulses through said swirl chamber nozzle; wherein said varying flow rate comprises at least a first non-zero flow rate and a second non-zero flow rate greater than said first non-zero flow rate; wherein said pulse repetition rate is at least 3000 pulses per minute and is sufficient for fluid at said second non-zero flow rate from a given pulse to overtake fluid at said first non-zero flow rate from a previous pulse before reaching said prescribed distance from said swirl chamber nozzle; and wherein said prescribed distance is 30 centimeters.