Molded plastic container for use with a cap having inner and out

Bottles and jars – Nonrefillable – Guard or valve type

Patent

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Details

B65D 140

Patent

active

042024552

ABSTRACT:
A blow molded or injection molded plastic container has a neck formed with a substantially horizontal flat top, an internal substantially vertical first sealing surface, a groove, a very smooth second sealing surface of less diameter than the first sealing surface and a lower groove and then a vertical stretch which merges into a breast which widens out to the full size of the container, an external first vertical surface, a horizontal inwardly extending shoulder, an indented second vertical surface of lesser diameter than the first vertical surface and an external bead, and a third vertical surface at about the level of the vertical stretch. The second sealing surface has an "injection finish" obtained by use of a blow pin in the mold. The neck accommodates a cap which has upper and lower internal beads (which seat under the shoulder and external bead of the neck) interrupted in a plurality of gaps, permitting stretching of the cap to seat on the neck. The top disc has a flexible peripheral flange which may be gripped to lift the cap when the bottom of the skirt is torn off.

REFERENCES:
patent: 3940004 (1976-02-01), Faulstich
patent: 3980195 (1976-09-01), Fillmore
patent: 3991904 (1976-11-01), Davis

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