Method for changing rolls of tubular film

Details Method for changing rolls of tubular film Method for changing rolls of tubular film

2004-11-04

2009-02-10

Sells, James (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C053S479000, C156S227000, C156S270000, C156S510000, C156S580100

Reexamination Certificate

active

07488398

ABSTRACT:
A method for joining an initial section (3) of a film tube (2) which is wound up in a band-like manner on a reel (1) with an end section (4) of a second film tube (5) extending over subsequent processing stations, especially a packaging system, in an at least partly band-like manner, with the band-like initial and end section (3, 4) each having two mutually superimposed outer lateral surfaces (10, 11, 15, 16) which each converge in their boundary regions into two interposed, inwardly folded inner lateral surfaces (17, 18, 19, 20) which thus form an inwardly situated fold axis (S, T). It is provided for in accordance with the invention that in the two outer boundary regions of the initial or end section (3, 4) a tab (7, 27) each is formed by placing a cut, which tab is joined in a tension-proof manner with the opposite section (3, 4), with the initial section (3) overlapping the end section (4).

REFERENCES:
patent: 4490199 (1984-12-01), Dunning
patent: 5679207 (1997-10-01), Palone et al.
patent: 2002/0074078 (2002-06-01), Van Heck
patent: 2003/0089760 (2003-05-01), Nobbe
patent: 195 15 718 (1996-11-01), None
patent: 1 304 214 (2003-04-01), None
patent: 1 201 585 (2004-05-01), None
patent: 1285550 (1989-11-01), None

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