发明名称 |
Hydrocarbon and water level sensor system used to monitor underground storage sites |
摘要 |
Combination hydrocarbon and water level sensor systems for use in connection with underground storage sites, such as gasoline storage tanks, industrial waste sites, and the like, with a solar cell power source and an LCD display located above ground and providing directly viewable indication of the presence or absence in the underground environment of "HYDROCARBON" and/or "WATER", with the absence of such being indicated by "OK". In the preferred form, a pod containing an adsorptive type hydrocarbon gas sensor and a galvanic cell type liquid water sensor is suspended by electrical cable means from a well cap in which the solar cell and LCD display are installed.
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申请公布号 |
US4827246(A) |
申请公布日期 |
1989.05.02 |
申请号 |
US19880197985 |
申请日期 |
1988.05.24 |
申请人 |
DOLAN, JAMES P.;DOLAN, PATRICK M. |
发明人 |
DOLAN, JAMES P.;DOLAN, PATRICK M. |
分类号 |
G08B21/18;(IPC1-7):G08B19/00;G01F23/00 |
主分类号 |
G08B21/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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