Snap-on closure with discontinuous annular lip

Details Snap-on closure with discontinuous annular lip Snap-on closure with discontinuous annular lip

1991-05-17

1993-05-04

Shoap, Allan N.

Bottles and jars

Closures

Frangible member or portion

B65D 4132

Patent

active

052073408

ABSTRACT:
There is disclosed a snap-on closure for containers, such as milk and soft drink plastic bottles, which has upper and lower annular beads on the inside wall of a peripheral skirt with a tear band defined by a score line in the skirt, located between the annular beads. The score line extends towards, but not entirely to, the bottom edge of the skirt, terminating a short distance above the bottom edge of the skirt. This score line permits a tearing of the lower portion of the cap skirt from the closure, and for this purpose, the cap tears along the weakened score line, about the closure and then downwardly towards the bottom edge of the skirt so that the entire lower portion of the skirt is removed as a tear band, leaving only the reclosure on the bottle. Since the lower score line does not extend to the lower edge of the skirt, that lower edge is not weakened, but retains its full hoop strength, to resist splitting when the cap is applied to the bottle.

REFERENCES:
patent: 4032029 (1977-06-01), Cochrane
patent: 4531650 (1985-07-01), Friendship
patent: 4632265 (1986-12-01), Cochrane

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