Apparatus and method for environmental surveying for contaminant

Details Apparatus and method for environmental surveying for contaminant Apparatus and method for environmental surveying for contaminant

1994-12-21

1996-05-14

Neuder, William P.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Indicating, testing or measuring a condition of the formation

175 71, E21B 312

Patent

active

055159320

ABSTRACT:
Apparatus and method for environmental surveying and prospecting for contaminants in alluvial materials and bedrock formations including using a portable pneumatic rotary percussion drilling machine, preferably pneumatic, having a gas circulation fluid to displace drill cuttings, the machine utilizing a perforated rock drill bit and hollow stem drill rod and potentially including means for lifting water and soil samples, a high pressure source of gas for unclogging perforations in the bit and means for driving and removing casing using the percussion driver.

REFERENCES:
patent: 3899033 (1975-08-01), Van Huisen
patent: 4120368 (1978-10-01), Johansson
patent: 5407019 (1995-04-01), Lazarus et al.

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