Patents Assigned to Kabushiki Kaisha Taishin Seisakusho
  • Method of producing connector fittings for pipes
    Patent number: 4051709
    Abstract: A method of producing connector fittings for pipes by using press machine comprising the steps of forming a semicircular recess in the upper surface of each of a pair of blanks placed in parallel and contact with each other as a first step, and forming a semicircular inner recess for holding flange of a pipe simultaneously with forming a pair of parts in which bolt holes are formed.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: October 4, 1977
    Assignee: Kabushiki Kaisha Taishin Seisakusho
    Inventor: Yoshio Sasahara