Apparatus for injection molding of shoe soles

Details Apparatus for injection molding of shoe soles Apparatus for injection molding of shoe soles

1977-09-09

1979-08-28

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

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

Female mold type means

425129S, 425183, B29H 512, B29H 708, B29C 900, B29F 100

Patent

active

041659589

ABSTRACT:
Right angle arms supporting mold bottom stamps pivot about an axis at the intersection of the arms to present in sequence the bottom stamps into underlying position with respect to an upper mold and a side mold to form in sequence first and second mold cavities limited respectively by the bottom stamps to permit multiple layer, preferably polyurethane shoe soles to be molded to a prepositioned shoe last and upper which may constitute in fact the upper mold.

REFERENCES:
patent: 3302243 (1967-02-01), Ludwig
patent: 3303532 (1967-02-01), Ludwig
patent: 3390213 (1968-06-01), Rollman et al.
patent: 3400429 (1968-09-01), Ludwig
patent: 3481003 (1969-12-01), Taylor et al.
patent: 3500502 (1970-03-01), Santelmann
patent: 3523333 (1970-08-01), Taylor et al.
patent: 3574895 (1971-04-01), McIlbin
patent: 3671621 (1972-06-01), Fukuoka
patent: 3709973 (1973-01-01), Maltby
patent: 3915608 (1975-10-01), Hujik

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