Mold for molding discs to be laminated into double discs

Details Mold for molding discs to be laminated into double discs Mold for molding discs to be laminated into double discs

1996-03-27

1998-02-24

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With product ejector

264 133, 264106, 425437, 425589, 425810, B29C 4500

Patent

active

057209944

ABSTRACT:
A mold is for molding DVD discs to be joined together, back-to-back, to make a single disc. The mold includes a movable moldhalf and a stationary moldhalf. On one of the half-molds an inserting block extends a small distance into the mold cavity, so that the central part of the cavity is thinner than the outer part. The inner part and the outer part correspond approximately to the outer information band and the inner portion of the disc which is grasped. The mold is preferably used in a method using first a lower compression force during resin injection and then an increased force.

REFERENCES:
patent: 4772196 (1988-09-01), Asai
patent: 4795127 (1989-01-01), Asai
patent: 4979891 (1990-12-01), Kitamura
patent: 5006058 (1991-04-01), Maruyawa et al.
patent: 5297951 (1994-03-01), Asai
patent: 5316466 (1994-05-01), Janaka et al.
patent: 5326240 (1994-07-01), Kudo et al.
patent: 5441399 (1995-08-01), Campbell et al.

Affiliated with

Also associated with

Rating

Mold for molding discs to be laminated into double discs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mold for molding discs to be laminated into double discs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold for molding discs to be laminated into double discs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1873767