Patents by Inventor Byung-guk Hwang

Byung-guk Hwang 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).

  • Lead-oxide preventing apparatus for automatic lead-soldering device
    Patent number: 5566875
    Abstract: A lead oxide preventing apparatus for an automatic soldering device does not generate lead oxides around an impeller shaft inside a lead chamber. Industrial waste in the form of heavy-metal-contaminated material is reduced by installing a ring member and by placing an oxidation preventing agent into the ring members, or by installing a beating therein so that the molten lead does not contact portions of the impeller shaft.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 22, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Byung-guk Hwang