发明名称 A METHOD OF TAKING SOIL SAMPLES AND A SOIL SAMPLING APPARATUS
摘要 A soil sampling apparatus and method of soil sampling. The soil sampling apparatus has several soil sampling compartments, each of which has a closure with an open position and a closed position. Upon rotation in one direction, a second edge of the closure engages a borehole to move the closure to the closed position. Upon rotation in another direction, the second edge of the closure engages the borehole to move the closure to the open position and scrape cuttings into the compartment.
申请公布号 CA2272476(A1) 申请公布日期 2000.11.20
申请号 CA19992272476 申请日期 1999.05.20
申请人 JACKSON, NEIL RUSSELL;FRENCH, ROBERT DALE 发明人 JACKSON, NEIL RUSSELL;FRENCH, ROBERT DALE
分类号 E02D1/04;E21B49/06;(IPC1-7):E21B49/02;E21B25/00 主分类号 E02D1/04
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