Plastic bottle with reinforced concave bottom

Details Plastic bottle with reinforced concave bottom Plastic bottle with reinforced concave bottom

1989-10-13

1991-02-05

Weaver, Sue A.

Bottles and jars

Ejecting

Siphon type

220606, 220608, B65D 144, B65D 102

Patent

active

049897381

ABSTRACT:
A blow molded plastic bottle has a reinforced plastic bottom with a concave central portion and a bottom rim portion. A solid depending rib, formed at the pinch off seam, extends across the concave portion, and depending hollow ribs, formed in the concave portion at ninety degress to the solid rib, extend radially to the bottom rim portion. The hollow rims effectively reduce the depth of the bottom rim intermediate the seam junctions to reduce bulging of the concave base thereby preventing instability.

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