Patents by Inventor Herbert Freilinger

Herbert Freilinger 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).

  • Screw having a web formed undercut for an extruder or conveyor
    Patent number: 12722129
    Abstract: A screw for an extruder or conveyor is disclosed. The screw includes a helical web extending around a core, where at least a portion of an active conveying flank of the web is formed with an undercut in the conveying direction. The screw may function as a conveying or dosing screw for processing polymer materials.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: September 1, 2026
    Assignee: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Michael Aigner, Georg Weigerstorfer, Herbert Freilinger, Klaus Feichtinger
  • SCREW FOR AN EXTRUDER OR CONVEYOR
    Publication number: 20220152566
    Abstract: The invention relates to a screw (1) for an extruder or conveyor (20), in particular extruder screw, conveying screw or dosing screw for polymers, having a web (3) running helically around a core (2), wherein the web (3) is formed undercut on its active conveying flank (4) in a conveying direction (F) at least in a section of the screw (1).
    Type: Application
    Filed: March 18, 2020
    Publication date: May 19, 2022
    Inventors: Michael Aigner, Georg Weigerstorf, Herbert Freilinger, Klaus Feichtinger