Stretch blow-molded polyethylene terephthalate wide mouth container and intermediate article
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United States of America Patent
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Jan 16, 1990
Grant Date -
N/A
app pub date -
Dec 7, 1987
filing date -
Dec 7, 1987
priority date (Note) -
Expired
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Abstract
This invention provides a wide mouth container and intermediate article formed by stretch blow-molding an injection-molded preform of polyethylene terephthalate suitable for packaging tennis balls or other contents under pressure. The container includes an improved base construction which will withstand internal pressure with controlled minimal distortion and an improved flange construction surrounding the wide mouth which provides desired strength and thickness for receiving a metal end closure by double seaming operations and which is formed by a unique accommodation portion in the intermediate article which has a stepped wall construction.
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