Patents Assigned to Bucher-Guyer
  • Apparatus for introducing injection material into a mold
    Patent number: 5660864
    Abstract: By embodying a feed screw (17) for glass fiber reinforced polyester material with a hollow shaft, it is possible for the injection piston (11) for an injection unit (9) to have a compact structure so as to be passed through the feed screw (17). To process even viscous polyester compositions gently, the injection piston can be equipped with a plasticizer screw and an associated plasticizer motor.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: August 26, 1997
    Assignee: Bucher-Guyer
    Inventor: Erich Schmidhalter