Rotating drum variable depth sampler

Details Rotating drum variable depth sampler Rotating drum variable depth sampler

2006-01-27

2008-07-01

Gay, Jennifer H. (Department: 3676)

Boring or penetrating the earth

Boring without earth removal

Combined with earth removal

C175S058000, C175S252000, C073S864440

Reexamination Certificate

active

07392856

ABSTRACT:
A sampling device for collecting depth-specific samples in silt, sludge and granular media has three chambers separated by a pair of iris valves. Rotation of the middle chamber closes the valves and isolates a sample in a middle chamber.

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