Patents by Inventor Eun-Jung Youn

Eun-Jung Youn 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).

  • Boring system and method therefor
    Patent number: 7748477
    Abstract: A boring system and method for same, relating to the boring system and method therefor, in particular to the boring system and method therefor for forming boring holes on the ground, which includes a bit unit for boring the ground, a connecting rod connected with a driving device for transmitting driving force to the bit unit, and a guide unit connected with the connecting rod in a longitudinal direction, the guide unit guiding movement of the bit unit along a guide groove which is formed in a casing inserted into an adjacent boring hole in a longitudinal direction, is disclosed.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: July 6, 2010
    Assignee: Kolon Construction Co., Ltd.
    Inventor: Eun-Jung Youn
  • Boring System And Method Therefor
    Publication number: 20080017418
    Abstract: A boring system and method for same, relating to the boring system and method therefor, in particular to the boring system and method therefor for forming boring holes on the ground, which includes a bit unit for boring the ground, a connecting rod connected with a driving device for transmitting driving force to the bit unit, and a guide unit connected with the connecting rod in a longitudinal direction, the guide unit guiding movement of the bit unit along a guide groove which is formed in a casing inserted into an adjacent boring hole in a longitudinal direction, is disclosed.
    Type: Application
    Filed: February 22, 2005
    Publication date: January 24, 2008
    Inventor: Eun-Jung Youn