Apparatus for forming annular liner

Details Apparatus for forming annular liner Apparatus for forming annular liner

1992-01-28

1993-03-02

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

264268, 413 58, 4251261, 4251291, 425561, 425809, B29C 6300

Patent

active

051907690

ABSTRACT:
An apparatus for forming an annular liner is equipped with a molding assembly which includes a press tool assembly and an anvil. The container closure shell is fed onto the anvil. The press tool assembly has a resin flow path and a means for forcibly flowing a synthetic resin material through the resin flow path. A notch is formed in the upstream portion of the resin flow path. When the molding assembly moves with respect to the feeding nozzle, the synthetic resin material discharged from the discharge port of a feeding nozzle enters into the upstream portion of the resin flow path via the notch, and is cut away from the feeding nozzle.

REFERENCES:
patent: 3135019 (1964-06-01), Aichele
patent: 3212131 (1965-10-01), Aichele
patent: 4388058 (1983-06-01), Kubo
patent: 4412797 (1983-11-01), Murayama
patent: 5035594 (1991-07-01), Murayama et al.
patent: 5071339 (1991-12-01), Murayama et al.

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