Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means between charger and mold to cut off flow of...
Reexamination Certificate
2004-09-09
2008-11-18
Heitbrink, Tim (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means between charger and mold to cut off flow of...
C425S566000
Reexamination Certificate
active
07452201
ABSTRACT:
A valve gate system for an injection molding machine, having a valve gate unit configured to be in contact with a manifold of an injection molding machine for delivering a molten plastic flow from a hot runner system to an injection chamber. The valve gate unit has a valve pin for controlling the flow of the molten plastic from a hot runner system to an injection chamber and an activating unit coupled with the valve gate unit. The activating unit is configured to be mounted external to a mold unit that houses the injection chamber. In addition, the activating unit has an element that extends through the mold unit to engage the valve pin, so as to control the molten plastic flow from a runner system to an injection chamber.
REFERENCES:
patent: 4330258 (1982-05-01), Gellert
patent: 4781572 (1988-11-01), Boring
patent: 4810184 (1989-03-01), Gellert et al.
patent: 4919606 (1990-04-01), Gellert
patent: 5090890 (1992-02-01), Morita
patent: 5288225 (1994-02-01), Schmidt et al.
patent: 5382158 (1995-01-01), Herbst
patent: 5460510 (1995-10-01), Gellert
patent: 5478230 (1995-12-01), McGrevy
patent: 5545023 (1996-08-01), Hosokawa et al.
patent: 5695793 (1997-12-01), Bauer
patent: 5766526 (1998-06-01), Watanabe
patent: 5855934 (1999-01-01), Rozema et al.
patent: 5919492 (1999-07-01), Tarr et al.
patent: 6086357 (2000-07-01), Steil et al.
patent: 6099767 (2000-08-01), Tarr et al.
patent: 6183239 (2001-02-01), Belous
patent: 6398542 (2002-06-01), Romanski et al.
patent: 6599116 (2003-07-01), Lee et al.
patent: 2003/0206987 (2003-11-01), George et al.
patent: 2426858 (2002-05-01), None
patent: 2216983 (2003-12-01), None
Heitbrink Tim
Injectnotech Inc.
Townsend and Townsend / and Crew LLP
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