Sediment sampler

Details Sediment sampler Sediment sampler

1986-04-21

1988-03-08

Novosad, Stephen J.

Boring or penetrating the earth

Boring without earth removal

Combined with earth removal

175 58, E21B 4902, E21B 2500

Patent

active

047294370

ABSTRACT:
The sampler disclosed comprises a barrel assembly (21) that is hammered into the ground, from the surface. Hammer-drive-rods are disconnectable from the barrel by manipulation from the surface by means of a left-hand-screw-thread connection (31). The barrel is pulled out of the hole by means of a draw-cable (20). The barrel includes an inner sleeve (16), made of thin aluminum or plastic. This sleeve is cut open to reveal the sample. The sleeve itself is relieved of the hammer blows and other stresses, which are taken entirely by the barrel.

REFERENCES:
patent: 1853581 (1932-04-01), Schmissrauter et al.
patent: 3696873 (1972-10-01), Anderson
patent: 3817338 (1974-06-01), Guest
patent: 3833075 (1974-09-01), Bachman et al.
patent: 3872935 (1975-03-01), Mielke
patent: 4252200 (1981-02-01), Peterson

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