Bottle neck having means to prevent compression of cap skirt

Details Bottle neck having means to prevent compression of cap skirt Bottle neck having means to prevent compression of cap skirt

1990-08-15

1992-09-01

Weaver, Sue A.

Bottles and jars

Closures

Frangible member or portion

215 31, 215320, 215321, B65D 102, B65D 4148

Patent

active

051432358

ABSTRACT:
Container neck finishes produced by preforming processes such as injection or compression molding can generally be made to more accurate dimensions than blow molded finishes. Blow molded bottles conventionally have had an outward slanted area below the locking beads which merges into a horizontal shoulder on which the lower edge of the cap skirt rests, the slanted areas preventing the lower portion of the skirt from being compressed or pinched-in. As a substitute for the slanted area of blow molded bottles, the present invention provides annular rings on a preformed finish which supports the skirt against compression and a larger diameter second annular ring which functions as a shoulder on which the lower edge of the cap skirt may rest.

REFERENCES:
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patent: 4884706 (1989-12-01), Julian
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