Self-contained runnerless molding system

Details Self-contained runnerless molding system Self-contained runnerless molding system

1994-09-21

1996-09-03

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

26432815, 425570, 425572, B29C 4522

Patent

active

055518630

ABSTRACT:
A high precision, self-contained runnerless molding system for use particularly in bench top molding machines. The system comprises two mold halves, one affixed to the fixed platen of the machine and the other moveable with the moveable platen of the machine. The fixed halve is integrated with heated sprues and interchangeable tips. One zone of temperature control suffices for regulating plastic temperature in the delivery system. The other half carries the "B"-plates and cooling system. Multiple drops are possible even with only one thermal control zone.

REFERENCES:
patent: 3568256 (1971-03-01), Johnson, Jr.
patent: 3758252 (1973-09-01), Kohler
patent: 4034952 (1977-07-01), Stewart
patent: 4921708 (1990-05-01), Gellert
patent: 5217730 (1993-06-01), Teng
Excerpts from advertising materials of Mold Masters limited believed to have been published in 1989.
Excerpts from advertising materials of enrietti SYSTEM believed to have been published prior to the filing date of this application.
Excerpts from advertising materials of Spear System, Inc. believed to have been published prior to the filing date of this application.
Excerpts from advertising material of DME believed to have been published prior to the filing date of this application.

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