Closure with seal opening member

Details Closure with seal opening member Closure with seal opening member

1997-01-27

1998-08-25

Shoap, Allan N.

Bottles and jars

Closures

Combined or convertible

215232, 220212, 220278, 222 83, B65D 4100

Patent

active

057975060

ABSTRACT:
A closure for sealing a container having an opening covered by a seal. The closure includes a peripheral wall and a nub extending upwardly from the top of the cap. The nub is radiused and includes a rounded peripheral edge. The nub also includes a planar outer surface facing the peripheral wall. The size, location and geometric shape of the nub are selected so that when the closure is inverted, placed over the opening, and rotated 360 degrees or more, the nub will tear the seal only partially away from the container.

REFERENCES:
patent: 4452842 (1984-06-01), Borges et al.
patent: 4634013 (1987-01-01), Bar-Kokhba
patent: 4684554 (1987-08-01), Ou-Yang
patent: 4709822 (1987-12-01), Vataru
patent: 5090582 (1992-02-01), Art et al.
patent: 5197618 (1993-03-01), Goth
patent: 5292025 (1994-03-01), Dubreul
patent: 5414133 (1995-05-01), Ninomiya et al.
patent: 5464122 (1995-11-01), Lifshey
patent: 5505326 (1996-04-01), Junko

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