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Title:
CORE-SAMPLING DEVICE WITH CORE-STORING MEMBERS LINKED AND LOCKED EACH OTHER
Document Type and Number:
Japanese Patent JP2012012919
Kind Code:
A
Abstract:

To solve the problem that conventional double-pipe-type sampler devices tend to face sampling anomalies because links between their tip tools for storing cores are likely to loosen, and the devices are also not suitable for collecting core samples with known bearings.

The core-sampling device is provided with two mechanisms: to link all the tools for storing cores at the same bearing as that of a core to be collected; and to prevent links from loosening along a boring direction.


Inventors:
MURATA SEIICHI
Application Number:
JP2010000165332
Publication Date:
January 19, 2012
Filing Date:
July 05, 2010
Export Citation:
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Assignee:
KOCHI CHISHITSU CHOSA CO LTD
International Classes:
E21B25/16