Apparatus and method for obtaining subterranean samples

Details Apparatus and method for obtaining subterranean samples Apparatus and method for obtaining subterranean samples

1992-01-31

1993-05-18

Novosad, Stephen J.

Boring or penetrating the earth

Boring without earth removal

Combined with earth removal

175 58, 175249, E21B 2510, E21B 4902

Patent

active

052112497

ABSTRACT:
The present invention provides an apparatus and method for obtaining a subterranean material sample. The inventive sampling apparatus comprises an elongate housing having a passageway extending longitudinally therethrough, a tip member movable through the passageway, and a locking means for releasably preventing the tip member from moving from a first portion of the passageway to a second portion of the passageway. The inventive sampling method comprises the step of inserting the inventive sampling apparatus into the ground. The present invention also provides a device for retaining material in a housing, said device comprising a plurality of resilient petal members.

REFERENCES:
patent: 2382992 (1945-08-01), Harris
patent: 2403002 (1946-07-01), Johnson
patent: 2664269 (1953-12-01), Knight et al.
patent: 2751010 (1956-06-01), Trahan
patent: 3075588 (1963-01-01), Mitchell
patent: 3367188 (1968-02-01), Robinson
patent: 3952817 (1976-04-01), Anderson
patent: 4059155 (1977-11-01), Greer

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