Patents Assigned to Asahi Kasei Kogyo Kabushiki Hiraoka & Co.
  • Method and apparatus for forming reinforcing cage for prestressed concrete pile
    Patent number: 4538042
    Abstract: Apparatus and method for forming a reinforcing cage for a prestressed concrete pile, in which the cage includes a set of main steel bars arranged in a circular pattern and an auxiliary wire which is helically wound around and welded at its crossings with the steel bars, that prevents any crossings from being welded when the current for welding is either insufficient in magnitude or not present and that prevents any unwelded crossings from being subsequently tempered.
    Type: Grant
    Filed: May 25, 1982
    Date of Patent: August 27, 1985
    Assignees: Neturen Co., Ltd., Asahi Kasei Kogyo Kabushiki Kaisha, Asahi Kasei Kogyo Kabushiki Hiraoka & Co.
    Inventors: Masaho Tanaka, Tomio Shishido, Tetsukazu Fukuhara, Yugo Yao, Kunihilo Kobayashi, Yoshio Inoue