Footed hot-fill container
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United States of America Patent
Stats
-
Jul 28, 1992
Grant Date -
N/A
app pub date -
Jun 14, 1991
filing date -
Jun 14, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blow-molded container of thermoplastic resin has a hollow body with a generally cylindrical side wall portion rotationally symmetric about a longitudinal axis of the container. A shoulder portion integrally joins the side wall portion to a finish. An integral base merging with the side wall is defined by an outer surface comprising a plurality of downward projections separated from each other by generally arcuate segments extending essentially from the cylindrical side wall to the longitudinal axis of the container. The shoulder and sidewall portions are tempered during formation of the container to withstand hot filling at a temperature of at least about 170.degree. F. and subsequent introduction of a cryogenic liquid gas to provide an initial pressurization of at least 20 psi at the fill temperature.
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