Self-supporting plastic container for liquids

Details Self-supporting plastic container for liquids Self-supporting plastic container for liquids

1980-10-16

1982-08-03

Norton, Donald F.

Bottles and jars

Ejecting

Siphon type

220 70, B65D 102

Patent

active

043423981

ABSTRACT:
A pressure-resistant thermoplastic container has a low center of gravity and a dimensionally stable seating ring zone of substantial strength. The center of gravity is lowered by reducing the weight of the finish and neck, and using a larger diameter for the main body to reduce the overall height while maintaining the desired internal volume. The improved design of the seating ring results in a thicker wall in the bottom end and, therefore, a stronger structure. The bottom end includes a sharp V-shaped structure having a concave inside wall and a generally convex outside wall joined at the bottom ends by a return portion. A convex central portion is connected to an upper end of the inner wall to define a central cavity and an extreme lower end of the outer wall is generally concave.

REFERENCES:
patent: D92469 (1934-06-01), Humphreys
patent: 2126465 (1938-08-01), Hilgenberg
patent: 3009599 (1961-11-01), Schier et al.
patent: 3272366 (1966-09-01), Ikeda
patent: 3722726 (1973-03-01), Carmichael et al.
patent: 4134510 (1979-01-01), Chang

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