Method of manufacturing and a manufacturing device of reinforced

Details Method of manufacturing and a manufacturing device of reinforced Method of manufacturing and a manufacturing device of reinforced

1996-10-17

1999-06-15

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

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

Extrusion shaping means

264102, 26417127, 26417411, 264DIG78, 4251311, 425462, 425DIG60, B29C 4720, B29C 4706

Patent

active

059120231

ABSTRACT:
A single head forms an outside layer material supply passage connected through to an annular slit at joined portion, a reinforcing material supply passage and an inside layer material supply passage. An outside rubber layer is supplied to the outside material supply passage. A reinforcing cloth is supplied to the reinforcing material supply passage, and an inside rubber is supplied to the inside layer material supply passage respectively. A vacuum is formed up to the pressure of the joined portion by reducing under a vacuum the inside of the reinforcing cloth supply passage, thereby removing water or gas such as air attaching to both surfaces of the reinforcing cloth and increasing the adhesion of the outside rubber layer and the inside rubber layer with the reinforcing cloth being half there between.

REFERENCES:
patent: 3697209 (1972-10-01), Schiesser
patent: 3790651 (1974-02-01), Meitinger
patent: 3905853 (1975-09-01), Stent
patent: 4161379 (1979-07-01), Sudyk
patent: 4671761 (1987-06-01), Adrian et al.
patent: 4734305 (1988-03-01), Sugimoto et al.
patent: 4859380 (1989-08-01), Ogata

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