Gate of mold for injection molding machine

Details Gate of mold for injection molding machine Gate of mold for injection molding machine

1978-01-18

1979-10-23

Briggs, William R.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

239135, 425563, 425566, B29F 105

Patent

active

041719417

ABSTRACT:
A gate of a mold for an injection molding machine comprises a valve cone having a circular cone shape or a pyramid shape and a valve seat corresponding to the valve cone wherein the valve cone is pushed toward the valve seat by a spring in the direction reverse to the injecting direction.

REFERENCES:
patent: 2842160 (1958-07-01), Rekettye
patent: 3348520 (1967-10-01), Lockwood
patent: 3482283 (1969-12-01), Korf
patent: 3973892 (1976-08-01), Rees

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