Injection molding assembly

Details Injection molding assembly Injection molding assembly

1980-05-05

1982-11-09

Scherbel, David A.

Dispensing

With relatively movable actuator for outlet element

For nonrotary outlet element reciprocable axially of...

222413, 222559, 425542, 425564, B29F 104

Patent

active

043580335

ABSTRACT:
A injection molding nozzle with an automatic shut-off valve is disclosed. The present invention is intended for use with injection molding machines employing a screw plasticizer and an injection plunger. The nozzle, as a conversion unit, fits any in-line screw injection machine. The nozzle can, also, be employed as part of a two-stage injection molding machine capable of injection molding, conventional, semi-foam or structural foam. The nozzle of the present invention has smooth flow passages and a few parts which are of simple construction allowing the nozzle to be easily cleaned for conversion to different materials.

REFERENCES:
patent: 2359840 (1944-10-01), Goessling
patent: 3191233 (1965-06-01), Linderoth, Jr.
patent: 3398435 (1968-08-01), Nouel
patent: 3642403 (1972-02-01), Havlik
patent: 4076485 (1978-02-01), Sokolow

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