By Moving Pattern To Effect Shaping Patents (Class 164/177)
Rotating (Class 164/178)
  • Method for squeezing foundry sand, a match plate, and an upper and a lower flask
    Patent number: 7448429
    Abstract: A method for squeezing foundry sand filled in an upper and a lower molding space, comprising: a step to squeeze the foundry sand by causing the upper and the lower squeeze plate to further approach each other, and a step to squeeze it by causing pattern portions of the match plate to move to each of the upper and the lower squeeze plate.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: November 11, 2008
    Assignee: Sintokogio Ltd.
    Inventors: Minoru Hirata, Tokiya Terabe, Koichi Sakaguchi