Injection molding apparatus having opposed injection means

Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With coupling between charger and mold

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2642972, 2643288, 425588, B29C 4522

Patent

active

057890331

ABSTRACT:
The foregoing objects are attained by the inventive opposed gating injection method and apparatus of the instant invention for forming molded articles and for use with injection molders wherein a first mold half and a second mold half are adapted to cooperate and form at least one mold cavity. The invention includes a first injector nozzle positioned in a first mold half adjacent the cavity, for injecting a first molding resin into the cavity through a first orifice. A second injector nozzle is included which is positioned in the second mold half adjacent the cavity for injecting a second molding resin. The second resin may be different from the first resin or the same as the first resin. The second resin is injected through a second orifice unconnected with the first orifice. In accordance with the invention, the injector nozzles may be either simultaneously or sequentially activated for filling the mold cavity, and may be single material or co-injection type nozzles.

REFERENCES:
patent: 3873656 (1975-03-01), Garner
patent: 4212626 (1980-07-01), Gellert
patent: 4275030 (1981-06-01), Mares
patent: 4717324 (1988-01-01), Schad et al.
patent: 4803031 (1989-02-01), Ochs et al.
patent: 5028226 (1991-07-01), De'ath et al.
patent: 5145630 (1992-09-01), Schad

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Injection molding apparatus having opposed injection means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Injection molding apparatus having opposed injection means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molding apparatus having opposed injection means will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1174709

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.