Patents by Inventor Uel-Duk Jin

Uel-Duk Jin 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).

  • Degassing apparatus having duplex vacuum vessel
    Patent number: 7976773
    Abstract: A degassing apparatus having duplex vacuum vessels for removing impurity gases from molten steel by backflow of molten steel thereby homogenizing molten steel composition. The apparatus includes duplex vacuum vessels of first and second vacuum vessels fixedly arranged at a predetermined interval to a floor which is provided horizontally at a predetermined height from a bottom; first and second ladle carriages arranged to run on first and second rails, respectively, to reciprocate between a treatment position directly under the first and second vacuum vessels and a tapping position where refined molten steel is tapped, each of the first and second ladle carriage loaded with a corresponding one of first and second ladles; and first and second lifting cylinders each for raising and lowering each of the first and second ladles in the treatment position so that a bottom end of each of the first and second vacuum vessels is immersed by molten steel in each of the first and second ladles.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: July 12, 2011
    Assignee: Posco Engineering & Construction Co., Ltd.
    Inventors: Byung-Kyu Jung, Han-Yung Kal, Jin-Ho Son, Young-Sik Shin, Uel-Duk Jin, Kyung-Bae Jin, Jae-Kyu Kim, Chai-Rok Lee
  • Degassing Apparatus Having Duplex Vacuum Vessel
    Publication number: 20080296812
    Abstract: A degassing apparatus having duplex vacuum vessels for removing impurity gases from molten steel by backflow of molten steel thereby homogenizing molten steel composition. The apparatus includes duplex vacuum vessels of first and second vacuum vessels fixedly arranged at a predetermined interval to a floor which is provided horizontally at a predetermined height from a bottom; first and second ladle carriages arranged to run on first and second rails, respectively, to reciprocate between a treatment position directly under the first and second vacuum vessels and a tapping position where refined molten steel is tapped, each of the first and second ladle carriage loaded with a corresponding one of first and second ladles; and first and second lifting cylinders each for raising and lowering each of the first and second ladles in the treatment position so that a bottom end of each of the first and second vacuum vessels is immersed by molten steel in each of the first and second ladles.
    Type: Application
    Filed: December 20, 2006
    Publication date: December 4, 2008
    Applicant: Posco Engineering & Construction Co., Ltd.
    Inventors: Byung-Kyu Jung, Han-Yung Kal, Jin-Ho Son, Young-Sik Shin, Uel-Duk Jin, Kyung-Bae Jin, Jae-Kyu Kim, Chai-Rok Lee