Air quality indicator system for breathing air supplies
摘要
An apparatus for indicating the presence of CO and oil in a compressed breathing air supply provided in a tank. An indicator contains a substance which undergoes an observable physical change when exposed to a contaminant. The indicator is activated and placed in a housing and connected to the air supply and the indicator observed. In a preferred embodiment, the indicator is a single use indicator and contains an indicating gel in a glass tube which is opened by breaking at the time of use. Appropriate reference indicia are provided so the user may visually determine the contaminant level.
申请公布号
US5538690(A)
申请公布日期
1996.07.23
申请号
US19940220909
申请日期
1994.03.31
申请人
GREER, GARRY L.;SCHRADER, JACK L.;GIDEON, JAMES A.
发明人
GREER, GARRY L.;SCHRADER, JACK L.;GIDEON, JAMES A.