发明名称 Soil-gas sampling apparatus
摘要 Apparatus for soil-gas sampling comprising one or more passive vapor collectors enclosed within a liquid water penetration resistant vapor-permeable container to which means for easy in-ground insertion and retrieval is attached. The apparatus provides protection from water, dirt and mechanical damage to the vapor collector(s) during the insertion, sampling and removal steps and permits retrieval of the container from its in-ground location without the efforts and risks associated with excavation.
申请公布号 US5235863(A) 申请公布日期 1993.08.17
申请号 US19920891667 申请日期 1992.05.29
申请人 W. L. GORE & ASSOCIATES, INC. 发明人 BAILEY, CHRISTIAN E.;STUTMAN, MARK B.
分类号 G01V9/00 主分类号 G01V9/00
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