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.

Date of Patent:
Apr. 30, 2024

Filed:

Jul. 28, 2020
Applicant:

Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand, FR;

Inventor:

Christophe Goarant, Clermont-Ferrand, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/30 (2019.01); B29C 48/21 (2019.01); B29C 48/25 (2019.01); B29C 48/70 (2019.01); B33Y 80/00 (2015.01); B29K 21/00 (2006.01); B29L 30/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/304 (2019.02); B29C 48/21 (2019.02); B29C 48/2566 (2019.02); B29C 48/25686 (2019.02); B29C 48/705 (2019.02); B33Y 80/00 (2014.12); B29K 2021/00 (2013.01); B29L 2030/002 (2013.01);
Abstract

A preformer () is designed to extrude jointly a plurality of elastomer mixes in a direction of flow (X), in order to form a profiled element, the preformer comprising for this purpose, superimposed in a direction of stacking (Z), transverse to the direction of flow (X), a first channel (), a second channel () which is separated from the first channel () by a first partition (), then a third channel (), separated from the second channel () by a second partition (), the preformer also comprising a stiffener () formed integrally with the first partition () and the second partition (), and extends through the second channel (), having a leading edge () which splits the flow of elastomer material following the second channel ().


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