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
2007-01-02
2007-01-02
Heitbrink, Tim (Department: 1722)
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...
C264S328900
Reexamination Certificate
active
10847854
ABSTRACT:
An improved injection molding apparatus having a valve-gated injection nozzle for regulating a flow of molten material through a connecting passageway to a mold cavity. An end portion of the valve stem is configured to cooperate with a complementary sealing portion of the connecting passageway, when the valve stem is configured in a closed position. The mold cavity further includes a vestige forming portion that is located adjacent the sealing portion that is partially defined by a bottom portion of the valve stem when it is configured in the closed position. The apparatus is characterized in that the vestige forming portion extends radially outwardly from the sealing portion such that a first cross-sectional area of the sealing portion is smaller than a second cross-sectional area of the vestige forming portion. Accordingly, tearing along the vestige of the part is substantially avoided.
REFERENCES:
patent: 4256584 (1981-03-01), Lord et al.
patent: 4286941 (1981-09-01), Gellert
patent: 4712995 (1987-12-01), Basnett
patent: 5505613 (1996-04-01), Krummenacher
patent: 5902614 (1999-05-01), Kuntz
patent: 6135757 (2000-10-01), Jenko
patent: 6220850 (2001-04-01), Catoen et al.
patent: 6921259 (2005-07-01), Sicilia et al.
patent: 7037103 (2006-05-01), Niewels
patent: 2003/0170340 (2003-09-01), Sicilia et al.
patent: 2175634 (1997-11-01), None
patent: 0 638 407 (1995-02-01), None
Heitbrink Tim
Husky Injection Molding Systems Ltd.
Katten Muchin & Rosenman LLP
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