Patents by Inventor Oen-Ho Shin

Oen-Ho Shin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for sampling filter layer and method using the same
    Patent number: 7258782
    Abstract: An apparatus for sampling a filter layer and a method using the same are disclosed herein. The apparatus includes a cylindrical tube made of a transparent material; a screw installed at a central portion in the cylindrical tube, to be rotated for shifting a sample from the lower part to the upper part of the cylindrical tube, and a rotary operating unit fixed to the upper end of the screw for rotating the screw, wherein the cylindrical tube is provided with a scale formed on its outer circumference and a protective cap combined with the lower end for smoothly excavating the filter layer and preventing the damage of the cylindrical tube. The apparatus further lower case a fixed supporter on the upper end of the screw and a supporting hand lever protruding from one side of the fixed supporter to be pressed by a worker with force required for excavation.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: August 21, 2007
    Assignee: Korea Water Resources Corporation
    Inventors: Jin-Dal Jung, Oen-Ho Shin, Kyo-Nam Choi, Byoung-Geun Oh
  • Apparatus for sampling filter layer and method using the same
    Publication number: 20050006287
    Abstract: Disclosed are an apparatus for sampling a filter layer and a method using the same.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 13, 2005
    Inventors: Jin-Dal Jung, Oen-Ho Shin, Kyo-Nam Choi, Byoung-Geun Oh