US 12,419,980 B2
Droplet bandpass filter
Stephen Lea, Lane Cove West (AU); and Phuong Tran, Lane Cove West (AU)
Assigned to Saban Ventures PTY Limited, Lane Cove West (AU)
Appl. No. 17/253,417
Filed by Saban Ventures PTY Limited, Alexandria (AU)
PCT Filed Jun. 11, 2019, PCT No. PCT/AU2019/050597
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2019/241828, PCT Pub. Date Dec. 26, 2019.
Claims priority of application No. 2018902224 (AU), filed on Jun. 21, 2018.
Prior Publication US 2021/0244841 A1, Aug. 12, 2021
Int. Cl. A61L 2/22 (2006.01); A61L 2/26 (2006.01); B01D 45/04 (2006.01); B01D 45/06 (2006.01); B05B 12/00 (2018.01); A61L 101/02 (2006.01); A61L 101/36 (2006.01)
CPC A61L 2/22 (2013.01) [A61L 2/26 (2013.01); B01D 45/04 (2013.01); B01D 45/06 (2013.01); B05B 12/00 (2013.01); A61L 2101/02 (2020.08); A61L 2101/36 (2020.08); A61L 2202/15 (2013.01); A61L 2202/24 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of modifying a droplet size distribution of a population of droplets of a liquid sterilant suspended in a gas, the method comprising the steps of:
flowing the population of droplets of the liquid sterilant suspended in the gas through a tortuous pathway, wherein the tortuous pathway comprises at least one impactor region located at a position adjacent to a flow direction change from a first input flow direction to a first output flow direction, wherein a first portion of the liquid droplets impact and are removed from the flowing gas at the at least one impactor region, and a second portion of the liquid droplets remain suspended in the gas and flow in the first output flow direction;
recycling the sterilant from the first portion of the liquid droplets impacting and removed from the flowing gas at the at least one impactor region; and
generating additional droplets of liquid sterilant suspended in the gas from the recycled sterilant.