Hot runner nozzle collar for an injection molding apparatus

Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool

Reexamination Certificate

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Details

C264S328150

Reexamination Certificate

active

11065565

ABSTRACT:
A collar for an injection molding apparatus includes an upstream end for maintaining a head of a hot runner nozzle in contact with an outlet surface of a manifold and a downstream end for abutting a mold plate. An inner surface of the collar contacts an outer surface of the nozzle in order to align a nozzle channel of the nozzle with a manifold channel outlet of the manifold. A noncircular ridge protrudes from the inner surface of the collar in order to reduce contact between the outer surface of the nozzle and the collar.

REFERENCES:
patent: 4787840 (1988-11-01), Gellert
patent: 5474440 (1995-12-01), Gellert
patent: 5614233 (1997-03-01), Gellert
patent: 5851565 (1998-12-01), Garver et al.
patent: 6162043 (2000-12-01), Gellert
patent: 6220851 (2001-04-01), Jenko
patent: 6261084 (2001-07-01), Schmidt
patent: 6890473 (2005-05-01), Ho et al.
patent: 2004/0043102 (2004-03-01), Ho et al.
patent: 2127211 (1995-12-01), None
patent: 2137702 (1996-06-01), None
patent: WO 02/070226 (2002-09-01), None

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