US 11,704,992 B2
Hand cleanliness monitoring
Kevin Wittrup, Ann Arbor, MI (US)
Assigned to BioVigil Hygiene Technologies, LLC, Ann Arbor, MI (US)
Filed by BioVigil Hygiene Technologies, LLC, Ann Arbor, MI (US)
Filed on Jul. 19, 2021, as Appl. No. 17/379,526.
Application 17/379,526 is a continuation of application No. 16/031,067, filed on Jul. 10, 2018, granted, now 11,069,220.
Claims priority of provisional application 62/530,649, filed on Jul. 10, 2017.
Prior Publication US 2022/0180728 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G08B 21/24 (2006.01); G10L 25/51 (2013.01)
CPC G08B 21/245 (2013.01) [G10L 25/51 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system comprising:
a first sensor configured to detect operation of a sink;
a monitor in communication with the first sensor, the monitor operable to generate a sink hygiene credit after the person has been at the sink for a minimum amount of time and/or utilizes a sufficient amount of water to clean their hands, wherein the first sensor is operable to detect various signal attributes indicative of the person washing their hands in the sink, wherein the signal attributes comprise an appropriate water temperature; and
a second sensor configured to detect personal characteristics of a person operating the sink.