Patents Assigned to Saki Chemical Industry Co., Ltd.
  • Method of continuously extruding and molding ceramic honey-comb shaped moldings and die for use in the continuous extruding operation thereof
    Patent number: 4259057
    Abstract: The present invention is directed to a method of continuously extruding and molding ceramic honey-comb shaped moldings by use of an extruding die including a tertiary channel grooved, corresponding to the cross-sectional shape of the core unit of the ceramic honey-comb, on the material outlet side of the extruding die; a primary channel composed of many independent holes bored from the material inlet side; and a secondary channel for forming an interlinked passage between the tertiary channel and the secondary channel.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: March 31, 1981
    Assignee: Saki Chemical Industry Co., Ltd.
    Inventors: Kazunobu Abe, Shoichi Tamura, Tosiaki Matsuda