Apparatus for injection molding synthetic resin materials

Details Apparatus for injection molding synthetic resin materials Apparatus for injection molding synthetic resin materials

1977-04-12

1978-08-15

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

425 4R, 425535, 425566, 425567, B29F 108, B29F 103

Patent

active

041068874

ABSTRACT:
An apparatus for injection molding synthetic resin materials comprises means for injecting the material to be molded, mold means having a cavity for receiving the material from said injecting means, entrance passage means connecting said injecting means with the cavity of said mold means and valve means disposed in said entrance passage means for closing it to shut off the flow of material in said entrance passage means, said valve means having a fluid passage communicating at its one end with only the cavity of said mold means when said valve means is closed, said fluid passage having the opposite end thereof adapted to connect with another source of pressurized fluid.

REFERENCES:
patent: 2940123 (1960-06-01), Beck et al.
patent: 3078507 (1963-02-01), Park
patent: 3127458 (1964-03-01), Scott, Jr. et al.
patent: 3813014 (1974-05-01), Guerin
patent: 3894823 (1975-07-01), Hanning
patent: 3926219 (1975-12-01), Ersfeld
patent: 3947177 (1976-03-01), Eckardt

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