Device for inducing slack in a wrapping film, associated with me

Details Device for inducing slack in a wrapping film, associated with me Device for inducing slack in a wrapping film, associated with me

1992-10-14

1994-02-22

Sipos, John

Package making

Methods

Wrapping contents including cover forming

53228, 533759, 53463, 53528, B65B 1100

Patent

active

052876799

ABSTRACT:
In a machine for wrapping rolls of household paper in plastic film, the standard heat seal roller is modified by fitting an offset device in the form of a bar set forward of the revolving heated sector in relation to the path followed by the packs of rolls and in the direction of rotation of the roller; the bar projects radially from the roller, and impinges on the sheet of film wrapped around each pack of rolls directed into the heat seal station, causing the two overlapping edges to shift one in relation to the other such that the wrapping is slackened marginally before the edges are joined, affording space into which the rolls can expand once beyond the confines of the heat seal station.

REFERENCES:
patent: 3631649 (1972-01-01), Close et al.
patent: 3705476 (1972-12-01), Wolf
patent: 4435945 (1984-03-01), Rohrig
patent: 4624096 (1986-11-01), Norstrom
patent: 4679379 (1987-07-01), Cassoli
patent: 4854108 (1989-08-01), Cassoli
patent: 4909016 (1990-03-01), Rentmeester et al.
patent: 5038549 (1991-08-01), Nordstrom

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