Easily removable valve pin bushing

Details Easily removable valve pin bushing Easily removable valve pin bushing

2011-01-04

2011-01-04

Tucker, Philip C (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, C425S572000

Reexamination Certificate

active

07862329

ABSTRACT:
The invention provides a replaceable bushing in the base of a nozzle of a hot runner assembly and provides access through a manifold and a rear plate for removal and replacement of the bushing without having to disassemble the hot runner assembly. According to one embodiment of the invention, an actuator access port is provided for removing the valve pin actuator and a bushing access port is provided for accessing the bushing upon removal of the valve pin actuator, both of which may be removed from a second or rear plate of the injection molding assembly.

REFERENCES:
patent: 4682945 (1987-07-01), Schad
patent: 5141696 (1992-08-01), Osuna-Diaz
patent: 5378138 (1995-01-01), Onuma et al.
patent: 5894025 (1999-04-01), Lee et al.
patent: 6379144 (2002-04-01), Wright
patent: 6386508 (2002-05-01), Steil et al.
patent: 6419870 (2002-07-01), Lee et al.
patent: 6514440 (2003-02-01), Kazmer et al.
patent: 6599116 (2003-07-01), Lee et al.
patent: 6739863 (2004-05-01), Olaru
patent: 6769896 (2004-08-01), Kazmer et al.
patent: 6824379 (2004-11-01), Doyle et al.
patent: 6840758 (2005-01-01), Babin et al.
patent: 7217384 (2007-05-01), Tanaka et al.
patent: RE40478 (2008-09-01), Olaru
patent: 7419625 (2008-09-01), Vasapoli et al.
patent: 7581944 (2009-09-01), Fairy et al.
patent: 2001/0011415 (2001-08-01), Kalemba
patent: 2003/0086996 (2003-05-01), Babin et al.
patent: 2004/0265421 (2004-12-01), Olaru
patent: 2006/0153945 (2006-07-01), Blais et al.
patent: 2008/0093773 (2008-04-01), Schwarzkopf
patent: 05200788 (1993-08-01), None

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