Patents Assigned to Plasco Corporation
  • Process for casting a plastic die
    Patent number: 6247222
    Abstract: A method for casting a plastic die including constructing an open ended container having a floor configured to the desired contour shape of the die. A plurality of elongated cores having tapered and arcuate peripheral edges are spaced within the container and secured in place by traversing members. A cavity is formed in the container therebetween for the injection of hardenable material.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: June 19, 2001
    Assignee: Plasco Corporation
    Inventor: John J. Zuccarini
  • Process for casting a plastic die
    Patent number: 5802696
    Abstract: A method for casting a plastic die including constructing an open ended container having a floor configured to the desired contour shape of the die. The open ended container is segmented by longitudinal members and traversing members. A plurality of box-shaped cores are spaced within the container and secured in place by the traversing members. A cavity is formed in the container therebetween for the injection of hardenable material.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: September 8, 1998
    Assignee: Plasco Corporation
    Inventor: John J. Zuccarini