Patents by Inventor Dieter Hans Grözinger

Dieter Hans Grözinger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Salt cores for plastic (injection) molding
    Patent number: 8017056
    Abstract: Water-soluble salt cores are used in molds for the production of hollow moldings by plastic molding. The production of hollow plastic moldings is effected by positioning a water-soluble salt core in a mold, molding a thermoplastic molding material around the salt core and, after solidification of the thermoplastic molding material, washing out the salt core with a water-containing solvent.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: September 13, 2011
    Assignee: Emil Muller GmbH
    Inventor: Dieter Hans Grözinger
  • SALT CORES FOR PLASTIC (INJECTION) MOLDING
    Publication number: 20090289392
    Abstract: Water-soluble salt cores are used in molds for the production of hollow moldings by plastic molding. The production of hollow plastic moldings is effected by positioning a water-soluble salt core in a mold, molding a thermoplastic molding material around the salt core and, after solidification of the thermoplastic molding material, washing out the salt core with a water-containing solvent.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 26, 2009
    Applicant: Emil Müller GmbH
    Inventor: Dieter Hans Grözinger