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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.:

US 11731335 B1

PDFFull Text
Date of Patent:
Aug. 22, 2023

Filed:

Feb. 07, 2018

Multi-component extrusion die head, multi-component extrusion system and method for producing a composite tube

Applicant:

Delfingen Fr-anteuil S.a., Anteuil, FR;

Inventor:

Hubert Rausch, Königsberg, DE;

Assignee:

DELFINGEN FR-ANTEUIL S.A., Anteuil, FR;

Attorney:

Alleman Hall Creasman & Tuttle LLP

Primary Examiner:

Xiao S Zhao

Assistant Examiner:

Joseph S Leyson

Int. Cl.
CPC ...
B29C 48/695 (2019.01); B29C 48/19 (2019.01); B29C 48/20 (2019.01); B29C 48/09 (2019.01); B29C 48/32 (2019.01); B29C 48/70 (2019.01); B29C 48/17 (2019.01); B29C 48/21 (2019.01); B29C 48/13 (2019.01); B29C 48/49 (2019.01); B29C 48/25 (2019.01); B29C 48/30 (2019.01); B29C 48/10 (2019.01); B29C 48/12 (2019.01); B29L 23/18 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/695 (2019.02); B29C 48/09 (2019.02); B29C 48/13 (2019.02); B29C 48/17 (2019.02); B29C 48/19 (2019.02); B29C 48/20 (2019.02); B29C 48/21 (2019.02); B29C 48/25686 (2019.02); B29C 48/304 (2019.02); B29C 48/32 (2019.02); B29C 48/49 (2019.02); B29C 48/70 (2019.02); B29C 48/10 (2019.02); B29C 48/12 (2019.02); B29L 2023/18 (2013.01); B29L 2023/22 (2013.01);
Abstract

A multi-component extrusion die head for producing a composite tube comprises an extrusion nozzle, a main die head, and a melt flow distributor device. The main die head is configured to supply the extrusion nozzle with a first melt flow and a second melt flow, which are guided separately from one anther in the extrusion nozzle away from the main die head and toward a nozzle outlet of the extrusion nozzle. The melt flow distributor device is arranged in the extrusion nozzle outside of the main die head and is configured to split the first melt flow in a peripheral direction thereof, and to supply the second melt flow to the first melt flow such that at least one section of the second melt flow is arranged within the first melt flow in the peripheral direction.

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