Apparatus for injecting confluent streams of plastic material in

Details Apparatus for injecting confluent streams of plastic material in Apparatus for injecting confluent streams of plastic material in

1981-06-17

1983-02-15

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

425562, B29F 100, B29F 112

Patent

active

043738869

ABSTRACT:
An apparatus for the production of marbled articles by injecting into the injection molding die of an injection molding machine two confluent streams of plastic raw material of different hue or color which are supplied from two injection units, via separate pulsation channels which open into a common nozzle channel, just ahead of the mold cavity. The plastic raw materials flowing in the two pulsation channels are subjected to an intermittant and alternatingly pulsating advance by means of feed thrust pulsation controls which generate an intermittant advance of the plastification screws of the injection units. At the junction between the two pulsation channels may be arranged a pulsation chamber with oppositely oriented material entry ports which are alternatingly closed by a reciprocating pulsating element which moves with the pulsating plastic streams.

REFERENCES:
patent: 2418856 (1947-04-01), Stacy
patent: 2815033 (1957-12-01), Braunlich
patent: 2822574 (1958-02-01), Lavash
patent: 3180912 (1965-04-01), Rowe
patent: 3453688 (1969-07-01), Otstot et al.
patent: 3461197 (1969-08-01), Lemelson
patent: 3733156 (1973-05-01), Garner
patent: 3774890 (1973-11-01), Lemelson
patent: 3864069 (1975-02-01), Takiura et al.
patent: 3945784 (1976-03-01), Collins
patent: 3979170 (1976-05-01), Garner
patent: 4053271 (1977-10-01), Gellert

Affiliated with

Also associated with

Rating

Apparatus for injecting confluent streams of plastic material in does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for injecting confluent streams of plastic material in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for injecting confluent streams of plastic material in will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1798767