|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||222/52 ; 222/59 ; 222/640 ; 251/12904|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 27 인용 특허 : 0|
An apparatus for measuring and displaying a time interval between a valve closure and subsequent termination of a flow at a spigot is provided. The apparatus has magnetic sensors coupled to a flow regulating valve for providing a signal indicative of a solenoid-activated valve closure and detectors for determining fluid flow. The detectors have an infra-red light source and associated photo-sensor mounted near the water outlet spigot such that when a fluid flow is present at the spigot, the fluid reflects light from the infra-red light source so that the...
An apparatus for measuring and displaying a time interval between a valve shut-off controlling a liquid flow and a subsequent cessation of the liquid flow at a spigot, comprising: sensing means for detecting when a valve is closed and for providing a representative signal output therefor; means for detecting a fluid flow and for providing a representative signal output therefor; and means for measuring and displaying a time interval between said signal output of said sensing means and said signal output of said means for detecting a fluid flow.