Bottles and jars – Closures – Frangible member or portion
Patent
1989-04-10
1990-08-28
Norton, Donald F.
Bottles and jars
Closures
Frangible member or portion
215320, B65D 4148
Patent
active
049518305
ABSTRACT:
There is disclosed a snap-on closure which has upper and lower annular beads on the inside wall of a peripheral skirt with a tear band defined by at least one score line in the skirt, located between the annular beads. The closure has a center corking skirt that is downwardly dependent from its undersurface and this corking skirt has sufficiently thin side walls to flex. The corking skirt is spaced concentrically within the outer peripheral skirt of the closure and is spaced apart from the peripheral skirt by an annulus having a width which is slightly less than the width of the inner lip found on the neck finish of conventional bottles. This ensures that the corking skirt will resiliently engage the inside mouth of the bottle and be deflected thereby, thus forming a seal in the mouth of the bottle. The corking skirt can have reinforcement gussets that project radially inwardly from its side wall and depend from the undersurface of the top disk of the closure. These gussets are also of a thickness sufficiently thin to permit flexing when elastic deformation of the corking skirt is required for fitting of the closure.
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