Method of injection molding closure with continuous internal...

Details Method of injection molding closure with continuous internal... Method of injection molding closure with continuous internal...

2005-04-12

2005-04-12

Ngo, Lien (Department: 3727)

Bottles and jars

Closures

Frangible member or portion

C215S258000

Reexamination Certificate

active

06877624

ABSTRACT:
An injection molded container closure with a continuous internal projection, in particular a rib having a length-to-width ratio of at least one and one-half, is formed with a mold cavity between a pair of mold halves. One mold half includes a core forming the interior of the closed annular structure of the container closure, wherein the core is separated into a movable core portion and a remaining core portion at a separating line defined at the internal rib for forming the same.

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