Extrusion device for producing tire tread plies

Details Extrusion device for producing tire tread plies Extrusion device for producing tire tread plies

1992-02-06

1993-07-06

Bushey, Scott

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

425188, 425192R, 425461, B29C 4702

Patent

active

052252086

ABSTRACT:
An extrusion device (1) the extrusion head (2) of which features a number of superimposed shaped plates (9, 10, 11, 12) clamped together by a clamping device (3) located and operating externally of the extrusion head (2) about which it defines a releasable ring device; the extrusion device (1) having an automatic release device (4) for separating the shaped plates (9, 10, 11, 12) when the ring device is released.

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patent: 4683095 (1987-07-01), Tolonen et al.
patent: 4799874 (1989-01-01), Bellmer et al.

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