Patents by Inventor David F. Voigt

David F. Voigt 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).

  • Core rod assembly for blow molding and having multiple temperature zones
    Patent number: 11420378
    Abstract: A core rod assembly (10) for blow molding includes a core rod head (16), a first fluid pathway (A1) extending along a first length of the core rod head (16), and a second fluid pathway (A2) extending along a second length of the core rod head (16). The first and second fluid pathways (A1, A2) may be fluidly isolated from each other and provide selective temperature control of respective first and second portions of the core rod assembly (10) during the blow molding process. At least a portion of the first fluid pathway (A1) may be longitudinally offset from the second fluid pathway (A2) so as to define respective first and second temperature zones (zone 1, zone 2) along the respective first and second portions of the core rod assembly (10).
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 23, 2022
    Assignee: Nalge Nunc International Corporation
    Inventor: David F. Voigt
  • CORE ROD ASSEMBLY FOR BLOW MOLDING AND HAVING MULTIPLE TEMPERATURE ZONES
    Publication number: 20220001591
    Abstract: A core rod assembly (10) for blow molding includes a core rod head (16), a first fluid pathway (A1) extending along a first length of the core rod head (16), and a second fluid pathway (A2) extending along a second length of the core rod head (16). The first and second fluid pathways (A1, A2) may be fluidly isolated from each other and provide selective temperature control of respective first and second portions of the core rod assembly (10) during the blow molding process. At least a portion of the first fluid pathway (A1) may be longitudinally offset from the second fluid pathway (A2) so as to define respective first and second temperature zones (zone 1, zone 2) along the respective first and second portions of the core rod assembly (10).
    Type: Application
    Filed: December 6, 2019
    Publication date: January 6, 2022
    Applicant: Nalge Nunc International Corporation
    Inventor: David F. Voigt