Method of manufacturing packs of cigarettes with a hermetically

Details Method of manufacturing packs of cigarettes with a hermetically Method of manufacturing packs of cigarettes with a hermetically

1988-06-21

1989-12-19

Sipos, John

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

53463, 53466, B65B 1132, B65B 6118

Patent

active

048874086

ABSTRACT:
Groups of cigarettes are inserted in succession into the peripheral pockets of an indexed wrapping wheel, each together with a relative sheet of heat-sealable wrapping material that incorporates a tear-open strip to facilitate the operation of breaking open the pack; the sheet is folded initially to create a sheath, enveloping the group of cigarettes lengthwise, the overlapping flaps of which are fused together by heat-seal elements that operate each time the wheel pauses; the projecting ends of the sheet are then folded down over the top and bottom of the pack by an assembly of mechanisms, and fused together by further heat-seal elements.

REFERENCES:
patent: 3924386 (1975-12-01), Schmermund
patent: 3948115 (1976-04-01), Seragnoli
patent: 4085568 (1978-04-01), Focke
patent: 4092816 (1978-06-01), Seragnoli
patent: 4095396 (1978-06-01), Seragnoli
patent: 4208854 (1980-06-01), Seragnoli

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