Patents by Inventor Juergen Bruning

Juergen Bruning 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).

  • Method of producing a foamed granulate
    Patent number: 6315931
    Abstract: A method for producing a foamed granulate, wherein a thermoplastic synthetic material is placed in an extruder, the synthetic material is melted, a pressurized expanding agent is fed through one or several injection nozzles, the molten material enriched with the expanding medium is foamed as it exits through a perforated plate arranged at the outlet of the extruder and is granulated by a cutting device arranged behind the perforated plate. Also disclosed is a device for implementing the method and the foamed granulate.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Gefinex Polymerschaeume GmbH
    Inventors: Juergen Bruning, Otto Deseke, Joachim Meyke