Patents Assigned to Hokko Co., Ltd.
  • Device for replacing packings of flange joints
    Patent number: 3997957
    Abstract: A device for replacing the packings of flange joints with new ones which comprises: a supporting body consisting of a sleeve and a pair of supporting bars attached to said sleeve; a movable member movably attached to said sleeve; a wedge member fixed to the lower end of said movable member; and a pair of supporting arms to connect said supporting body with the flanges.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: December 21, 1976
    Assignee: Hokko Co., Ltd.
    Inventors: Hisashi Tone, Tadao Chujyo