METHOD OF AND OPENING DEVICE FOR PACKAGE WITH OPENING DEVICE Russian patent published in 1998 - IPC

Abstract RU 2118279 C1

FIELD: mechanical engineering; packing; making of packages from roll or sheet material with opening device. SUBSTANCE: method comes to punching a hole in material, sealing the hole and fastening thermoplastic opening device. Hole opening means are formed by unfastened portion of sealing strip made in form of lip. Lip is arranged within the limits of hole on opening device. EFFECT: provision of easy opening of packages, prevention of material particles from getting inside. 11 cl, 8 dwg

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RU 2 118 279 C1

Authors

Bengt B'Erk

Lars Karlsson

Dates

1998-08-27—Published

1993-02-10—Filed