Patents Assigned to General Pattern Co., Inc.
  • Method of making shaker plates
    Patent number: 4030188
    Abstract: A process by which a complex shape of a sand core is reproduced in a metal plate which is made to the exact size of the sand core through a double casting process using different materials.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: June 21, 1977
    Assignee: General Pattern Co., Inc.
    Inventor: Dennis J. Reiland