The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2022
Filed:
May. 10, 2016
Applicant:
Windmöller & Hölscher KG, Lengerich, DE;
Inventors:
Ansgar Avermeyer, Georgsmarienhütte, DE;
Tobias Kulgemeyer, Hagen a.T.W., DE;
Markus Bussmann, Essen, DE;
Martin Backmann, Lengerich, DE;
Assignee:
Windmöller & Hölscher KG, Lengerich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/27 (2019.01); B29C 48/275 (2019.01); B29C 48/285 (2019.01); B29C 48/25 (2019.01); B29C 48/08 (2019.01); B29C 48/10 (2019.01); B29C 48/92 (2019.01); B29B 7/60 (2006.01);
U.S. Cl.
CPC ...
B29C 48/271 (2019.02); B29C 48/2563 (2019.02); B29C 48/2567 (2019.02); B29C 48/2692 (2019.02); B29C 48/277 (2019.02); B29C 48/286 (2019.02); B29B 7/603 (2013.01); B29C 48/08 (2019.02); B29C 48/10 (2019.02); B29C 48/92 (2019.02); B29C 2948/9298 (2019.02); B29C 2948/92333 (2019.02); Y02P 70/10 (2015.11);
Abstract
An extrusion device that produces plastic film includes at least two feed units that feed feedstock for an extruder, wherein, in each feed unit an automatic cleaning device is arranged for a removal of feedstock from the feed unit when changing material in the extrusion device.