Patent ID: 8925650
Filing Date: 2015-01-06
Classification: E02D,G01N

Abstract:
1. A slide-type core retainer for a sample collector comprising a sampler tube driven into a sea floor through a driving unit, the slide-type core retainer comprising: a catcher holder detachably coupled to a tip end of the sampler tube; a catcher installed on an inner peripheral surface at a lowermost end surface of the catcher holder, which makes first contact with the sea floor, and is configured to allow sediment to be introduced into the sampler tube and prevent the introduced sediment from being lost using resiliency; and an opening/closing control member slidably installed inside the catcher holder so as to control opening and closing of the catcher, wherein the opening/closing control member is coupled to the catcher before collection of samples so that the catcher compulsorily remains opened while the opening/closing control member is entirely positioned within the inner peripheral surface of the catcher holder so that the lowermost end surface of the catcher holder makes first contact with the sea floor, and the opening/closing control member slides into an inner side of the catcher holder while being separated from the catcher by the resistance of the solid sediment of deep strata to make a control such that the catcher is closed, when resistance is generated by solid sediment of deep strata after the sampler tube is driven into the sediment.