Preform and thin wall container
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 23, 2004
app pub date -
Apr 29, 2004
filing date -
Apr 30, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The purpose of the present invention is to prevent a falling out of a neck portion of a preform without a protrusion such as screw or support ring from a neck mold of a preform. The present invention relates to a preform comprising an open end edge formed as a flange overhanging outwardly, a circular neck portion formed under said open end edge by a neck mold for an outer side of said neck portion and an injection core for an inner side of said neck portion, and closed bottom portion, wherein; an outer peripheral surface of said circular neck portion is formed by the neck mold to a chamfered form having a thin wall portion and a thick wall portion alternately arranged at regular intervals, and a lower end edge of said thin wall portion is formed as an engagement portion with the neck mold.
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Family
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Cited Art Landscape
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