US 12,186,445 B2
Hand washing verification by contamination sensor
Maxim Simonovsky, Rehovot (IL)
Assigned to SOAPY CARE LTD., Ness Ziona (IL)
Appl. No. 18/012,519
Filed by SOAPY CARE LTD., Ness Ziona (IL)
PCT Filed Jun. 22, 2021, PCT No. PCT/IL2021/050760
§ 371(c)(1), (2) Date Dec. 22, 2022,
PCT Pub. No. WO2021/260693, PCT Pub. Date Dec. 30, 2021.
Claims priority of provisional application 63/043,272, filed on Jun. 24, 2020.
Prior Publication US 2023/0270904 A1, Aug. 31, 2023
Int. Cl. A61L 2/24 (2006.01); A47K 5/12 (2006.01); A61L 2/18 (2006.01); A61L 2/28 (2006.01); E03C 1/05 (2006.01); G08B 21/18 (2006.01)
CPC A61L 2/24 (2013.01) [A47K 5/1217 (2013.01); A61L 2/18 (2013.01); A61L 2/28 (2013.01); E03C 1/057 (2013.01); A61L 2202/14 (2013.01); A61L 2202/17 (2013.01); G08B 21/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hand washing system, comprising:
a wash basin, having a contaminant sensor positioned in proximity to a drain of the wash basin, wherein the contaminant sensor measures a level of contamination of rinse fluid leaving the wash basin;
a processor and associated memory having instructions that when executed by the processor implement:
receiving a signal from the contaminant sensor indicative of the level of contamination; and
responsively, determining the level of contamination and comparing the level of contamination with a contamination threshold to determine a hand washing status.