The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 06, 2015

Filed:

Jun. 17, 2010
Applicants:

Dong Lim Choi, Gyeongsangnam-do, KR;

Sung Rok Cho, Gyeonggi-do, KR;

Won Joon Shim, Gyeongsangnam-do, KR;

Moon Koo Kim, Gyeongsangnam-do, KR;

Kwan Koog Kim, Gyeonggi-do, KR;

Inventors:

Dong Lim Choi, Gyeongsangnam-do, KR;

Sung Rok Cho, Gyeonggi-do, KR;

Won Joon Shim, Gyeongsangnam-do, KR;

Moon Koo Kim, Gyeongsangnam-do, KR;

Kwan Koog Kim, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 25/10 (2006.01); G01N 1/08 (2006.01); E02D 1/04 (2006.01);
U.S. Cl.
CPC ...
E02D 1/04 (2013.01); G01N 1/08 (2013.01);
Abstract

A slide-type core retainer for a sample collector including a sampler tube driven into a sea floor. The slide-type core retainer includes a catcher holder detachably coupled to a tip end of the sampler tube; a catcher installed on an inner peripheral surface of a tip end of the catcher holder and configured to allow sediment introduction into the sampler tube and preventing sediment from being lost using resiliency. A control member slidably installed inside the catcher holder controls opening and closing of the catcher. The control member is coupled to the catcher before sample collection so that the catcher remains opened. The control member slides into an inner side of the catcher holder while being separated from the catcher by the resistance of the solid sediment such that the catcher is closed, when resistance is generated by solid sediment after the sampler tube is driven into the sediment.


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