Device for sampling soils and retaining volatiles therein and me

Details Device for sampling soils and retaining volatiles therein and me Device for sampling soils and retaining volatiles therein and me

1987-09-04

1989-03-07

Dang, Hoang C.

Boring or penetrating the earth

With heating or cooling drilling fluid

7386444, 175 20, 175 46, 175 58, 175244, E21B 4902

Patent

active

048097900

ABSTRACT:
A device for extracting an undisturbed sample of soil to be tested from a subsurface location uses a cutter to remove unwanted soil from above the undisturbed sample. The device is particularly intended for extraction of soil from contaminated areas without loss of contaminants which are volatile at ambient temperatures. The device also is capable of chilling or freezing the sample in situ before extraction and testing. A method of using the device to take samples whenever volatile contaminants are sensed is also disclosed.

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patent: 4228862 (1980-10-01), Causse
patent: 4345484 (1982-08-01), Gould et al.

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