About: http://webisa.webdatacommons.org/20982603

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	When there is neither a signal from the ultrasonic sensing means 60 nor a signal from reset button 66, the valve 64 is biased bysprings 65 to stay in its second position, i.e. the position whereby air cannot escape from reservoir 63.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com