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. 22, 2022
Filed:
Dec. 21, 2016
Applicant:
Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand, FR;
Inventors:
Christophe Ougier, Clermont-Ferrand, FR;
Arnaud Letocart, Clermont-Ferrand, FR;
Assignee:
Compagnie Generale des Etablissements Michelin, Clermont-Ferrand, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 48/49 (2019.01); B29B 7/20 (2006.01); B29C 48/21 (2019.01); B29C 48/39 (2019.01); B29C 48/385 (2019.01); B29C 48/40 (2019.01); B29B 7/74 (2006.01); B29C 48/41 (2019.01);
U.S. Cl.
CPC ...
B29B 7/20 (2013.01); B29B 7/7466 (2013.01); B29B 7/7495 (2013.01); B29C 48/21 (2019.02); B29C 48/385 (2019.02); B29C 48/39 (2019.02); B29C 48/40 (2019.02); B29C 48/402 (2019.02); B29C 48/41 (2019.02); B29C 48/49 (2019.02); B29C 2948/92885 (2019.02);
Abstract
An extrusion apparatus intended for the manufacture of a coextruded profiled element P for tyres, produced from rubber compounds of various compositions, comprises a profiling device () arranged at the outlet of at least two flow channels () for rubbery compounds of different composition. The said channels receive the compounds from positive-displacement contrarotating twin-screw extruders (), the screw flights interpenetrating and having conjugated profiles.