Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1989-10-11
1991-01-01
Seidleck, James
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
215 1C, 220 70, B65D 102, B65D 2300
Patent
active
049817361
ABSTRACT:
A plastic preform for forming blow molded plastic bottles which comprises: a neck portion defining an opening; a tubular sidewall portion depending therefrom; and an integral base structure depending from the tubular sidewall portion to a closed end; the preform having an outside wall face and an inside wall face with one of these in the base structure having integrally formed thereon a plurality of filets, extending longitudinally of the preform and defining a continuous reinforcing ring of varying thickness spaced from the closed end and circumscribing the base structure, wherein the filets decrease progressively in width and radial thickness at least from the reinforcing ring toward the closed end. The preform is capable of forming a blow molded plastic bottle with a bottom portion having a continuous reinforcing ring of circumferentially continuous radially extending alterations in wall thickness with a regularly undulating cross-section along the circumference. Preferably the filets are integral with the inside wall face.
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Cheng Jizu J.
Feddersen Frederick J.
FMT Holdings, Inc.
Seidleck James
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