Multiple-gate injection molding apparatus

Details Multiple-gate injection molding apparatus Multiple-gate injection molding apparatus

2007-10-19

2009-11-17

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...

C425S570000, C425S572000, C425S573000

Reexamination Certificate

active

07618253

ABSTRACT:
One or more nozzles define separate nozzle channels. The nozzles are coupled to a manifold, so that each of the nozzle channels communicates with a different mold gate. A molding material distribution insert is coupled to the manifold and has a body defining a distribution channel and a plurality of drop channels equal in number to the nozzle channels. The distribution channel is an open distribution channel formed on an outer surface of the body and enclosed by the manifold. The drop channels intersect the distribution channel and exit the body at a different one of the nozzle channels. A valve pin bushing can extend into the drop channels. Valve pins can extend from actuators, through the valve pin bushing and the drop channels, and to the mold gates. A valve pin holder can be coupled to the actuator and coupled to heads of the valve pins.

REFERENCES:
patent: 4212627 (1980-07-01), Gellert
patent: 4378963 (1983-04-01), Schouenberg
patent: 4436496 (1984-03-01), Laghi
patent: 4932858 (1990-06-01), Gellert
patent: 5096411 (1992-03-01), Gellert
patent: 5368470 (1994-11-01), Manner
patent: 5536164 (1996-07-01), Brun, Jr. et al.
patent: 5551863 (1996-09-01), Hepler
patent: 5641526 (1997-06-01), Gellert
patent: 6030198 (2000-02-01), Babin
patent: 6135751 (2000-10-01), Gellert et al.
patent: 6162044 (2000-12-01), Babin
patent: 6196822 (2001-03-01), Blundy
patent: 6394779 (2002-05-01), Komazawa et al.
patent: 7125246 (2006-10-01), Schmidt
patent: 7249945 (2007-07-01), Schreck
patent: 7255555 (2007-08-01), Babin
patent: 2004/0164459 (2004-08-01), Babin et al.
patent: 2006/0127527 (2006-06-01), Doyle et al.
patent: 2007/0092597 (2007-04-01), Trakas
patent: 2008/0160125 (2008-07-01), Fairy
patent: 2047461 (1993-01-01), None
patent: 2863440 (2007-01-01), None
patent: 3642343 (1988-01-01), None
patent: 3733363 (1989-04-01), None
patent: 3933281 (1990-04-01), None
patent: 3906651 (1990-09-01), None
patent: 4034934 (1992-05-01), None
patent: 29504162 (1995-05-01), None
patent: 4425981 (1996-01-01), None
patent: 19943797 (2001-03-01), None
patent: 021273 (1981-01-01), None
patent: 153592 (1985-09-01), None
patent: 2000033634 (2000-02-01), None
patent: 2002036310 (2002-02-01), None
patent: 2006007658 (2006-01-01), None
patent: 2007083661 (2007-04-01), None
patent: 20050002766 (2005-01-01), None
patent: WO-2007029184 (2007-03-01), None
“HPS III—230 V Externally Heated”,Ewikon BrochureAug. 1995.
“HPS III—NV Valve Gate Systems”,Ewikon BrochureOct. 2004.
“International Search Report and Written Opinion”,International Appl. No. PCT/CA2008/001839Jan. 28, 2009.

Affiliated with

Also associated with

Rating

Multiple-gate injection molding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple-gate injection molding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple-gate injection molding apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4113173