초록 ▼

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 o

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.

대표청구항 ▼

[ What is claimed is:] [1.] An opening system for a beverage container which is capable of being pierced by a straw comprising:a container barrier wall having a straw hole therein through which the straw is designed to be inserted to draw the beverage from the container; andan easy-open tamper-evide

[ What is claimed is:] [1.] An opening system for a beverage container which is capable of being pierced by a straw comprising:a container barrier wall having a straw hole therein through which the straw is designed to be inserted to draw the beverage from the container; andan easy-open tamper-evident membrane seal located inside of the container and sealingly covering the straw hole, said membrane seal being liquid impervious and including:an outer portion which is sealed to an inside surface of said barrier wall about the straw hole and which terminates at a distance from the straw hole, said outer portion sealed to said barrier wall including fingers which extend toward the straw hole, andan inner portion integral with said outer portion which is not sealed to the inside surface and which covers the straw hole so that in use the straw pierces said inner portion after being inserted in the straw hole.