Screw tip and molding system apparatus

Details Screw tip and molding system apparatus Screw tip and molding system apparatus

2007-09-18

2007-09-18

Heitbrink, Tim (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

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

With accumulator, trap chamber, or serially arranged valves...

C425S562000, C425S563000

Reexamination Certificate

active

10844456

ABSTRACT:
A screw tip for use in a molding system apparatus is disclosed. The screw tip includes a connection section and screw tip head section. The screw tip head houses an entry port, or entry ports, an accumulation chamber, and a check valve chamber. A check valve is provided when assembled with the screw tip. The check valve may be a cylindrical plate or a spherical member or a conical member.

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patent: 2070425 (1992-07-01), None
patent: 2103068 (1992-11-01), None

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