Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1988-10-21
1990-05-22
Seidleck, James J.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
215 1C, 220 70, 264532, 425529, 4285428, B65D 2300
Patent
active
049276794
ABSTRACT:
An improved preform for blow molding a one-piece plastic container of the champagne base variety having an annular peripheral chime surrounding an inward sloping base portion for containing carbonated beverages. The preform defining interior and exterior walls which are ever decreasing in diameter from the neck to the base so that the preform may be easily removed from a mating core and injection mold cavity used therewith thereby avoiding the need for a split mold to form the preform. The preform including a thickened annulus adjacent the transition between side wall and base forming portions thereof and an exterior weight reducing annular concavity between the thickened annulus and the closed end of the preform.
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Devtech, Inc.
Seidleck James J.
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