Patents by Inventor Ssang-Sin Kwak

Ssang-Sin Kwak 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).

  • Fuel injection device
    Patent number: 7077341
    Abstract: A new fuel injecting device is comprised of a nozzle body formed a fuel supply hole in the center top end for injecting the fuel to a combustion chamber, a plurality of the spiral grooves and the edge grooves formed vertically and alternately on the outer peripheral surface of the lower portion. Each edge groove is positioned between two adjacent spiral grooves for supplying the fuel through the fuel supply hole. Each spiral groove and edge groove are formed a flow sectional area reduced gradually from inlet to outlet. A cylindrical shaped nozzle case is openable upward or downward and adapted to accommodate the nozzle body at a lower portion and the injector at an upper portion. The injector is positioned on the nozzle body and the injection hole is tightly secured onto the fuel supply hole of the nozzle body.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: July 18, 2006
    Inventor: Ssang-Sin Kwak
  • Fuel injection device
    Publication number: 20050035223
    Abstract: A new fuel injecting device is comprised of a nozzle body formed a fuel supply hole in the center top end for injecting the fuel to a combustion chamber, a plurality of the spiral grooves and the edge grooves formed vertically and alternately on the outer peripheral surface of the lower portion. Each edge groove is positioned between two adjacent spiral grooves for supplying the fuel through the fuel supply hole. Each spiral groove and edge groove are formed a flow sectional area reduced gradually from inlet to outlet. A cylindrical shaped nozzle case is openable upward or downward and adapted to accommodate the nozzle body at a lower portion and the injector at an upper portion. The injector is positioned on the nozzle body and the injection hole is tightly secured onto the fuel supply hole of the nozzle body.
    Type: Application
    Filed: July 23, 2004
    Publication date: February 17, 2005
    Inventor: Ssang-Sin Kwak
  • Door for a refrigerator
    Patent number: D468329
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: January 7, 2003
    Assignee: LG Electronics Inc.
    Inventor: Ssang Sin Kwak