Patents Assigned to tpT Machinery Corporation
  • Clamping device for molds used in the blow molding of hollow plastic articles
    Patent number: 4352653
    Abstract: The disclosure deals with a clamping device for molds used in blow molding of hollow plastic articles having two halves of the mold for forming the sides of the hollow plastic article and a bottom part, wherein the halves of the mold can be moved away from each other. The invention is characterized in that during the opening of the mold the halves of the mold are moved away from each other in a longitudinal direction to said hollow plastic article and, at least partially simultaneously, in a perpendicular direction to said article.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: October 5, 1982
    Assignee: tpT Machinery Corporation
    Inventors: Lothar Ott, Dieter Gessner
  • Transfer device for parisons and finished products in injection blow molding devices
    Patent number: 4351631
    Abstract: A transfer device for open neck plastic parisons and finished articles in injection blow molding equipment. The device includes a core or pin which is attached to a plate and can be inserted into the parison or finished article. A collet is included which is supported by the core, an extension of the core, or the plate in such a way that the collet grips the neck of the parison or finished article when in one position, and releases it when in a second position.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: September 28, 1982
    Assignee: tpT Machinery Corporation
    Inventors: Dieter Gessner, Lothar Ott