Plastic bottle base reinforcement

Details Plastic bottle base reinforcement Plastic bottle base reinforcement

1986-03-12

1988-11-22

Weaver, Sue A.

Bottles and jars

Ejecting

Siphon type

220 70, 220 72, B65D 102, B65D 142, B65D 2300

Patent

active

047859504

ABSTRACT:
This relates to the strengthening of the base of a blow molded plastic bottle and like container wherein the container base is of the type having generally hemispherical portions alternating circumferentially with projecting feet defining portions. It has been found that by roughening the surface of the base, particularly the lower central portion thereof, the base is greatly strengthened. The base is formed by blow molding in a blow mold base portion which has been roughened by shot peening.

REFERENCES:
patent: 3598270 (1971-08-01), Adomaities et al.
patent: 3825141 (1974-07-01), Campagna
patent: 4024975 (1977-05-01), Uhlig
patent: 4134510 (1979-01-01), Chang
patent: 4254882 (1981-03-01), Yoshino
patent: 4359165 (1982-11-01), Jakobsen
patent: 4375442 (1983-03-01), Ota et al.
patent: 4481163 (1984-11-01), Ota et al.

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