Thermoplastic bottle with reinforcing ribs
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United States of America Patent
Stats
-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Oct 28, 1991
filing date -
Oct 28, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A relatively large water bottle is blow molded from thermoplastic material and includes a generally cylindrical body, a generally frustoconical top breast at the upper end of the body, and a filling and dispensing neck extending upwardly from the central portion of the top breast. Angularly spaced reinforcing ribs are formed on the inner side of the top breast to increase the column strength thereof. The ribs are formed as an incident to blow molding the bottle from a preform having angularly spaced external ribs on a frustoconical portion of the preform, the external ribs being converted into internal ribs during the blow molding operation.
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