Patents by Inventor Bonggee Lee

Bonggee Lee 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).

  • Method and apparatus for die casting of parts
    Patent number: 7971628
    Abstract: A cold-chamber die-casting apparatus and method for making a die-cast part with an open space within the geometry of the part. The apparatus includes an injection shaft which receives molten material for casting the part. The molten material is pushed with a plunger through a gate and into a tool cavity corresponding to the part. The gate is disposed at an end of the injection shaft and adjacent the tool cavity at a position that corresponds to the open space of the part and is inside the geometry of the part.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: July 5, 2011
    Assignee: Interplex NAS, Inc.
    Inventors: Goonhee Lee, Bonggee Lee
  • METHOD AND APPARATUS FOR DIE CASTING OF PARTS
    Publication number: 20090017324
    Abstract: A cold-chamber die-casting apparatus and method for making a die-cast part with an open space within the geometry of the part. The apparatus includes an injection shaft which receives molten material for casting the part. The molten material is pushed with a plunger through a gate and into a tool cavity corresponding to the part. The gate is disposed at an end of the injection shaft and adjacent the tool cavity at a position that corresponds to the open space of the part and is inside the geometry of the part.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Applicant: Interplex NAS, Inc.
    Inventors: Goonhee Lee, Bonggee Lee