Apparatus and method for extruding rubber mixtures

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11279060
APP PUB NO 20180370074A1
SERIAL NO

16064801

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Abstract

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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 (30) arranged at the outlet of at least two flow channels (34, 35) for rubbery compounds of different composition. The said channels receive the compounds from positive-displacement contrarotating twin-screw extruders (10, 20), the screw flights interpenetrating and having conjugated profiles.

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Patent Owner(s)

Patent OwnerAddress
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINCLERMONT-FERRAND

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Letocart, Arnaud Clermont-Ferrand, FR 18 69
Ougier, Christophe Clermont-Ferrand, FR 21 67

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