Method of removing molded natural resins from molds...

Details Method of removing molded natural resins from molds... Method of removing molded natural resins from molds...

2006-06-20

2006-06-20

Cano, Milton (Department: 1761)

Food or edible material: processes, compositions, and products

Processes

Molding, casting, or shaping

C426S513000, C426S516000, C426S805000, C426S389000, C425S556000

Reexamination Certificate

active

07063868

ABSTRACT:
A process of injection molding a natural resin into a mold cavity including lifter bars as part of the ejection system for extracting the molded animal chew of the mold cavity. The lifter bars are provided with a contacting area having a relatively high surface area ratio relative to surface area of the molded part that remains in contact with the mold after injection and mold opening.

REFERENCES:
patent: 4163540 (1979-08-01), Cafarelli
patent: 4416602 (1983-11-01), Neumeister
patent: 4891002 (1990-01-01), Inaba et al.
patent: 4929170 (1990-05-01), Boskovic
patent: 5122051 (1992-06-01), Joyner
patent: 5795610 (1998-08-01), London
patent: 6110521 (2000-08-01), Axelrod
patent: 6159516 (2000-12-01), Axelrod et al.
patent: 6379725 (2002-04-01), Wang et al.
International Search Report (3 pgs) and Written Opinion of the International Searching Authority (3 pgs) issued in the corresponding International Patent Application No. PCT/US04/05991.

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