Apparatus and method for obtaining undisturbed soil core samples

Details Apparatus and method for obtaining undisturbed soil core samples Apparatus and method for obtaining undisturbed soil core samples

1975-01-28

1976-09-07

Purser, Ernest R.

Boring or penetrating the earth

With means movable relative to tool to receive, retain, or...

Core-retaining or severing means

175243, 175405, E21B 920

Patent

active

039789322

ABSTRACT:
Large-diameter, undisturbed soil core samples were obtained from a variety of soils. Handling and fracturing of the undisturbed soil cores were minimized by encasing the cores in heat-shrinkable plastic tubes during sampling operations.

REFERENCES:
patent: 2779195 (1957-01-01), Simon
patent: 2807439 (1957-09-01), Lipscomb
patent: 3008529 (1961-11-01), Lynch et al.
patent: 3180438 (1965-04-01), Dickinson et al.
patent: 3383131 (1968-05-01), Rosfelder
patent: 3525409 (1970-08-01), Holzman
patent: 3807234 (1974-04-01), Duperon
patent: 3833075 (1974-09-01), Bachman et al.

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