Method of injection molding utilizing pressurized fluid source w

Details Method of injection molding utilizing pressurized fluid source w Method of injection molding utilizing pressurized fluid source w

1991-05-13

1992-08-11

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

With internal application of fluid pressure

2643288, 26432812, 26432813, B29C 4500, B29D 2200

Patent

active

051376806

ABSTRACT:
A method and system for the injection molding of plastic articles in an injection molding system including a chamber in a mold of the system which stores a charge of pressurized gas immediately prior to use. The mold has an injection aperture and a mold cavity for receiving molten resin. A resin flow path fluidly communicates the injection aperture and the mold cavity within the mold. An orifice in the mold opens the chamber to the mold. A gas receiver initially stores the charge of pressurized gas and a fluid circuit selectively introduces the charge of pressurized fluid into the chamber. A valve mechanism in the chamber selectively fluidly communicates the chamber to the flow path under control of a controller. When communicated to the flow path, the charge of gas distributes the molten plastic within the mold cavity in one embodiment of the invention.

REFERENCES:
patent: 4101617 (1978-07-01), Friederich
patent: 4855094 (1989-08-01), Hendry
patent: 4935191 (1990-06-01), Baxi
patent: 4942006 (1990-07-01), Loren
patent: 4943407 (1990-07-01), Hendry
patent: 4948547 (1990-08-01), Hendry
patent: 4990083 (1991-02-01), Bernhardt

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