Patents by Inventor Hyek-Jin Choi

Hyek-Jin Choi 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).

  • Remotely controlled apparatus for recovering liquid in sunken ship and method performed by the same
    Patent number: 7377226
    Abstract: A remotely controlled apparatus for transporting liquid, such as oil, toxic chemicals, or the like, in a tank of a sunken ship to a floating body, without leakage and a method performed by the apparatus are disclosed. An underwater recovery device (100) of the apparatus includes a supporting frame (10), to which a plurality of devices including a linkage (111) are fixed, chucking devices (20) for fixing the underwater recovery device (100) to the sunken ship (500), a grabber (30) for attaching the base plate (80) to the supporting frame (10), DTB systems 40 for attaching the base plate (80) to the sunken ship (500), thrusters (50) for providing a propulsive force so as to attach the supporting frame (10) to the sunken ship (500), a hole cutter (60) for drilling a hole for the recovery of the liquid, and a liquid recovery device (70) for recovering the liquid through the hole drilled in the sunken ship (500).
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: May 27, 2008
    Assignee: Korea Ocean Research and Development Institute
    Inventor: Hyek-Jin Choi
  • Romotely Controlled Apparatus for Recovering Liquid in Sunken Ship and Method Performed by the Same
    Publication number: 20070261629
    Abstract: A remotely controlled apparatus for transporting liquid, such as oil, toxic chemicals, or the like, in a tank of a sunken ship to a floating body, without leakage and a method performed by the apparatus are disclosed. An underwater recovery device (100) of the apparatus includes a supporting frame (10), to which a plurality of devices including a linkage (111) are fixed, chucking devices (20) for fixing the underwater recovery device (100) to the sunken ship (500), a grabber (30) for attaching the base plate (80) to the supporting frame (10), DTB systems 40 for attaching the base plate (80) to the sunken ship (500), thrusters (50) for providing a propulsive force so as to attach the supporting frame (10) to the sunken ship (500), a hole cutter (60) for drilling a hole for the recovery of the liquid, and a liquid recovery device (70) for recovering the liquid through the hole drilled in the sunken ship (500).
    Type: Application
    Filed: February 25, 2005
    Publication date: November 15, 2007
    Inventor: Hyek-Jin Choi