Method and device for producing a tubular wrapping

Details Method and device for producing a tubular wrapping Method and device for producing a tubular wrapping

2007-04-24

2007-04-24

Rada, Rinaldi I. (Department: 3721)

Package making

Methods

Closing package or filled receptacle

Reexamination Certificate

active

10984948

ABSTRACT:
A folding method and device, whereby a tubular wrapping is formed about a product by inserting the product inside a U-shaped pocket together with a sheet of wrapping material, a first lateral portion of which is interposed between the product and a first lateral wall of the pocket, and a second lateral portion of which, opposite the first, is folded outside and beyond the pocket and crosswise to the first lateral portion; the tubular wrapping being closed by moving the first lateral wall of the pocket outwards, simultaneously moving a contrast member onto the first lateral portion, and then folding the second lateral portion, by means of an external folding member, onto the product and so as to overlap the first lateral portion; and the tubular wrapping being fixed inside the pocket by withdrawing the external folding member, simultaneously closing the first lateral wall onto the product, and withdrawing the contrast member (34) from the pocket.

REFERENCES:
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patent: 6513533 (2003-02-01), Spatafora et al.
patent: 6708466 (2004-03-01), Spatafora
patent: 6964148 (2005-11-01), Spatafora
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patent: 1 052 171 (2000-11-01), None
patent: 1 145 957 (2001-10-01), None
patent: 1 262 409 (2002-12-01), None

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