Heat-resistant synthetic resin bottle
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United States of America Patent
Stats
-
Jul 8, 1986
Grant Date -
N/A
app pub date -
Oct 25, 1984
filing date -
Oct 31, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Here is disclosed a heat-resistant synthetic resin bottle which is biaxially oriented by axially stretching and air blowing an injected or extruded closed-end parison in a blow mold to carry out molding, whereby a bottom wall of the bottle is recessed toward its interior in the form of a dome and an annular peripheral edge for supporting the bottle itself is formed around the bottom wall, characterized in that a top portion of the bottom wall which thickens gradually from the annular peripheral edge to a central portion thereof is recessed upwardly from the underside of the top portion itself in order to thin the top portion, and the bottom wall between the top portion and the peripheral edge is partially outwardly bulged in order to radially form a predetermined number of triangular pyramid-shaped recessed section and bottom lands between said recessed section.
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