Injection mold gate apparatus

Details Injection mold gate apparatus Injection mold gate apparatus

1984-12-13

1986-06-17

Flint, Jr., J. Howard

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

2643289, 425533, 425543, 425562, 425564, B29F 1022

Patent

active

045955522

ABSTRACT:
An injection mold apparatus for forming molded plastic articles comprising a polymer supply source; a mold cavity; conduit connecting the mold cavity and the supply source; an injection assembly for injecting molten polymer into the mold cavity and a gate valve associated with the conduit and having an elongate central passage terminating in an outlet orifice and a needle positioned in skewed relationship with the elongate central passage and selectively insertable into the orifice in a closed position and retractable from the orifice and the elongate central passage to provide an unrestricted polymer flow in an open position.

REFERENCES:
patent: 3014241 (1961-12-01), Hehl
patent: 3301928 (1967-01-01), Plynhale
patent: 3503095 (1970-03-01), Uhlig
patent: 4057609 (1977-11-01), Uhlig
patent: 4295811 (1981-10-01), Sauer
patent: 4498860 (1985-02-01), Gahan
patent: 4521177 (1985-06-01), Blank et al.

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