Patents Assigned to Han Baek Trading Co., Ltd.
  • Patent number: 4351451
    Abstract: The invention is directed to a rubber sealed metal vacuum bottle comprising an inner shell and an outer shell; a U-shaped, circular rubber seal positioned between the throat portion of the inner shell and the upper end portion of the outer shell, said rubber seal having a U-shaped, circular metal reinforcing plate fitting therein, which reinforcing plate has two or more evenly spaced holes therethrough; and a circular supporting member fixed vertically between two inclined portions of the bottoms of the inner and outer shells. The invention is also directed to stopper caps for a metal vacuum bottle.
    Type: Grant
    Filed: November 6, 1979
    Date of Patent: September 28, 1982
    Assignee: Han Baek Trading Co., Ltd.
    Inventor: Ha D. Chung
  • Patent number: D263050
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: February 16, 1982
    Assignee: Han Baek Trading Co., Ltd.
    Inventor: Kyung T. Chang