Apparatus for obtaining a soil core sample

Details Apparatus for obtaining a soil core sample Apparatus for obtaining a soil core sample

1993-06-21

1994-06-21

Bagnell, David J.

Boring or penetrating the earth

Boring without earth removal

Combined with earth removal

7386444, 175 58, E21B 4902, G01N 108

Patent

active

053221338

ABSTRACT:
Soil sampling apparatus for forming and containing a core sample of a predetermined depth of soil into which the soil sampling apparatus is driven. A pair of cooperable, core-defining core tube members are carried on a guide rod and are sequentially driven into the soil to be sampled. The core tube members include angularly positioned panels for increased torsional rigidity, and the apparatus includes structure for permitting remote axial orientation of one core tube member relative to the other core tube member. The core tube members are each pointed at their lower ends to more easily penetrate the soil, and they are individually and sequentially driven into the soil to be sampled. One core tube member includes a pivotable soil sample gate to retain the soil sample within the core tube as the core tube is withdrawn from the soil.

REFERENCES:
patent: 828527 (1906-08-01), Ankeny
patent: 1919461 (1933-07-01), Burke et al.
patent: 3667553 (1972-06-01), Gill

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