Molding plastic articles

Details Molding plastic articles Molding plastic articles

1990-02-16

1991-12-03

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

2642972, 2643288, 26432812, 26432814, 26432815, 26432818, 26432819, 425557, 425560, 425562, 425572, 425573, B29C 4502, B29C 4513

Patent

active

050698400

ABSTRACT:
Apparatus and method for molding plastic articles including oscillating the molten plastic in the mold cavity. The method and apparatus is particularly suitable for use with a plurality of mold cavities supplied from a single feeding means or extruder. The disclosure teaches alternately feeding molten plastic to the mold cavity from shooting pots while the flow of molten plastic to the mold cavity from the feeding means is discontinued.

REFERENCES:
patent: 3709644 (1973-01-01), Farrell
patent: 3861841 (1975-01-01), Hanning
patent: 4242073 (1980-12-01), Tsuchiya et al.
patent: 4699581 (1987-10-01), Nagasaka et al.
patent: 4717324 (1988-01-01), Schad et al.
patent: 4722679 (1988-02-01), Farrell
patent: 4863369 (1989-09-01), Schad et al.
patent: 4925161 (1990-05-01), Allan et al.
Article entitled "Multiple Live-Feed Injection Moulding", by P. S. Allen et al., Plastics and Rubber Processing Applications, vol. 7, No. 1, pp. 3-10, 1987.

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