Patents by Inventor Bert Woellner

Bert Woellner 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 and device for producing at least one PLA strip
    Patent number: 11938671
    Abstract: Techniques for producing at least one PLA strip involve: a) providing a strip-shaped extruded PLA film, b) heating the PLA film provided according to step a) to a temperature in the range from 40 to 70° C., c) cutting the PLA film heated according to step b) into the at least one PLA strip, and d) stretching the PLA film cut according to step c).
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: March 26, 2024
    Assignee: STC Spinnzwirn GmbH
    Inventors: Kenneth Schindler, Bert Woellner, Daniel Götze, Torsten Müller, Jens Weinhold
  • METHOD AND DEVICE FOR PRODUCING AT LEAST ONE PLA STRIP
    Publication number: 20230390992
    Abstract: An apparatus for producing at least one PLA tape includes a heating device for heating a tapelike extruded PLA film. The apparatus further includes a slitting device for slitting the PLA film heated by means of the heating device into the at least one PLA tape. The apparatus further includes a control unit which is configured to control the heating device in such a way that the PLA film is heated by the heating device to a PLA temperature in the range from 40 to 70° C. The apparatus further includes a drawing device downstream of the slitting device.
    Type: Application
    Filed: July 19, 2023
    Publication date: December 7, 2023
    Inventors: Kenneth Schindler, Bert Woellner, Daniel Götze, Torsten Müller, Jens Weinhold
  • METHOD AND DEVICE FOR PRODUCING AT LEAST ONE PLA STRIP
    Publication number: 20220297372
    Abstract: Techniques for producing at least one PLA strip involve: a) providing a strip-shaped extruded PLA film, b) heating the PLA film provided according to step a) to a temperature in the range from 40 to 70° C., c) cutting the PLA film heated according to step b) into the at least one PLA strip, and d) stretching the PLA film cut according to step c).
    Type: Application
    Filed: July 22, 2020
    Publication date: September 22, 2022
    Inventors: Kenneth Schindler, Bert Woellner, Daniel Götze, Torsten Müller, Jens Weinhold