Apparatus for molding a tire molding bladder

Details Apparatus for molding a tire molding bladder Apparatus for molding a tire molding bladder

1976-12-22

1978-04-04

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

425 52, 425398, 425547, B29C 1700, B29H 518, B29C 300

Patent

active

040824900

ABSTRACT:
A bladder for use in a tire molding and vulcanization press has grooves in its outer face and a circumferential molding flash on its inner face. A process for the manufacture of this membrane by molding uses a press having a ribbed core to produce the grooves and two shells which may have smooth walls.

REFERENCES:
patent: 2929101 (1960-03-01), Davis
patent: 2959817 (1960-11-01), Bank
patent: 3543337 (1970-12-01), Meyn
patent: 4025269 (1977-09-01), Reinders

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