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Patent Searching and Data


Title:
SAMPLING DEVICE WITH LITTLE DISTURBANCE
Document Type and Number:
Japanese Patent JP2006322141
Kind Code:
A
Abstract:

To provide a sampling device with little disturbance capable of easily sampling a sample with little disturbance at a cutting face of a tunnel.

The sampling device with little disturbance is equipped with the front outer pipe 1 excavating a bedrock, the rear outer pipe 2 fixed to the front outer pipe 1, a sample storage pipe 5 storing the sample with litter disturbance, an inner pipe fixing the sample storage pipe 5 thereto and a thrust bearing 12 between a returning block 11 of the inner end section of the rear outer pipe 2 and a receiving block 7 of the rear end face of the inner pipe.


Inventors:
KITANI HIDEO
OTA TAKEHIRO
HASEGAWA ATSUSHI
ISOTANI ATSUMI
GOTO MITSUMICHI
Application Number:
JP2005143461A
Publication Date:
November 30, 2006
Filing Date:
May 17, 2005
Export Citation:
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Assignee:
RAILWAY TECHNICAL RES INST
JRTT JAPAN
International Classes:
E21B25/00; E02D1/04; G01N1/08
Attorney, Agent or Firm:
Mamoru Shimizu
Makoto Kawai