Injection-molding method and apparatus

Details Injection-molding method and apparatus Injection-molding method and apparatus

2011-05-24

2011-05-24

Heitbrink, Jill L (Department: 1743)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S255000, C264S259000, C264S273000, C425S129100

Reexamination Certificate

active

07947208

ABSTRACT:
An injection-molding method made up of a step of preparing a first die (41), a second die (46) and a third die (47), a step of sandwiching a separator proper (16) with the first die (41) and the second die (46), a step of molding a front side molded layer (32) by injecting silicone rubber (59) into the front side cavity (50) through a gate (52), a step of replacing the second die (46) with a third die (47) while the front side molded layer (32) is still soft, and a step of molding a rear side molded layer (34) by piercing the front side molded layer (32) with an injection pressure injecting the silicone rubber (59) through the gate (52) and filling a rear side cavity (63) with silicone rubber (59) through the through hole (30).

REFERENCES:
patent: 3809733 (1974-05-01), Sandiford et al.
patent: 4783298 (1988-11-01), Oda
patent: 4978491 (1990-12-01), Yagi et al.
patent: 5308570 (1994-05-01), Hara et al.
patent: 5334010 (1994-08-01), Teng
patent: 5676901 (1997-10-01), Higashi et al.
patent: 6183681 (2001-02-01), Sullivan et al.
patent: 6267576 (2001-07-01), Matsubara et al.
patent: 6334548 (2002-01-01), Ichikawa et al.
patent: 7070724 (2006-07-01), Nakazawa
patent: 1-178416 (1989-07-01), None
patent: 02-200410 (1990-08-01), None
patent: 9-155915 (1997-06-01), None
patent: 09-155919 (1997-06-01), None
patent: 11-309746 (1999-09-01), None

Affiliated with

Also associated with

Rating

Injection-molding method and 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 Injection-molding method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection-molding method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2651606