Flexible bags – Bag having means to facilitate opening it by severing bag... – Combined with – or modified for opening by – a sharp-edged...
Patent
1997-05-21
1999-02-23
Pascua, Jes F.
Flexible bags
Bag having means to facilitate opening it by severing bag...
Combined with, or modified for opening by, a sharp-edged...
229204, 383 5, B65D 3300
Patent
active
058736565
ABSTRACT:
An easy-open beverage container and an opening system for the beverage container are provided which include a container barrier wall having a straw hole. An easy-open tamper-evident membrane seal is located inside of the container and sealingly covers the straw hole. This membrane seal includes an outer portion which is sealed to an inside surface of the barrier wall about the straw hole and which terminates at a distance from the straw hole. This outer portion includes fingers which extend toward the straw hole. The membrane seal also includes an inner portion integral with the outer portion which is not sealed to the inside surface and which covers the straw hole so that in use the straw pierces the inner portion after being inserted into the straw hole. Preferably, the fingers form a sinusoidal intersection of the inner and outer portions, and the inner and outer portions as well as the straw hole are concentric. In addition, the membrane seal is formed of a laminate of LLDPE-EVOH-LLDPE suitably laminated together, as by tie layers, with the EVOH less than 40% of the thickness of the laminate and each LLDPE is at least 30% of the thickness of the laminate. The distance is greater than about 1/3 the diameter of the straw and less than about 1 2/3 the diameter of the straw, and the inner portion has a minimum edge to edge spacing of at least three times the diameter of the straw.
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Arkins Thomas Daniel
Kinigakis Panagiotis
Hylton Robin A.
Kraft Foods Inc.
Marcoux Thomas A.
Pascua Jes F.
Savoie Thomas R.
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