Packaging machine, particularly for forming flow-pack wrappers a

Details Packaging machine, particularly for forming flow-pack wrappers a Packaging machine, particularly for forming flow-pack wrappers a

1992-12-02

1994-10-04

Bray, W. Donald

Package making

Methods

Enclosing contents within progressively formed web means

53 55, 53 75, 53550, B65B 900

Patent

active

053514645

ABSTRACT:
In a packaging machine in which products to be packaged are inserted in a tubular wrapper which is then closed by two closure units in cascade, a dimensional characteristic of the products, such as their heights, variations of which can cause corresponding variations in the overall lengths of the packages formed by the tubular wrappers, is monitored in order to bring about corresponding variations in the phase difference in the operation of the closure units.

REFERENCES:
patent: 2280405 (1942-04-01), Frostad
patent: 3007295 (1961-11-01), Heinzen
patent: 3241288 (1966-03-01), Molins
patent: 4106265 (1978-08-01), Aterianus
patent: 4574566 (1986-03-01), Eaves et al.
patent: 4722168 (1988-02-01), Heaney
patent: 4862673 (1989-09-01), Francioni
patent: 4924657 (1990-05-01), Berti et al.

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