Method for injection molding plastic

Details Method for injection molding plastic Method for injection molding plastic

1976-12-13

1978-10-17

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264297, 264328, B29F 100

Patent

active

041209214

ABSTRACT:
A mold is provided with a pair of cavities interconnected by a runner to a common entry point. One of the cavities is gated whereby plastic may be injected into this cavity only by applying ultrasonic energy to the gate.

REFERENCES:
patent: 2912719 (1959-11-01), Gilmore et al.
patent: 3222776 (1965-12-01), Kawecki
patent: 3807921 (1974-04-01), Murgatroyd

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