Earth drilling device for extracting earth samples

Details Earth drilling device for extracting earth samples Earth drilling device for extracting earth samples

1980-07-03

1982-06-29

Pate, III, William F.

Boring or penetrating the earth

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

Receiver removable through below-ground tool shaft

175309, 175 58, 7386445, E21B 4902

Patent

active

043368492

ABSTRACT:
An earth drilling device for extracting earth samples including a rotatable drill tube and means for rotating said drill tube, a drill bit supported by said rotatable drill tube, said drill bit and said drill tube defining an inner shoulder, a hollow probe movably disposed within said drill tube and adapted to be supported by said inner shoulder, an exchangeable plastic sleeve disposed within said hollow probe, and means for extracting said hollow probe and associated plastic sleeve containing an earth sample without removing the drill tube from the earth.

REFERENCES:
patent: 1109446 (1914-09-01), Melberg
patent: 3429386 (1961-02-01), Secrist et al.
patent: 3667553 (1972-06-01), Gill
patent: 3828473 (1974-08-01), Morey
patent: 4081040 (1978-03-01), Henson
patent: 4156469 (1979-05-01), Laskey
patent: 4161988 (1971-07-01), Hart
patent: 4185665 (1980-01-01), Flimon

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