Machine for packaging plural types of articles within a stretcha

Details Machine for packaging plural types of articles within a stretcha Machine for packaging plural types of articles within a stretcha

1988-05-04

1990-05-01

Sipos, John

Package making

Apparatus for contraction of cover by stretching or shrinking

53229, 53232, 53372, B65B 1118

Patent

active

049207318

ABSTRACT:
A machine for packaging plural types of products inside a plastic stretchable film, including a bundling unit and a complete sealing unit. The bundling unit includes a device for longitudinally stretching a film web segment before wrapping it around the articles, a device for wrapping the stretched and tensioned film around the periphery of the articles, as well as a sealing device adapted to join both ends of the film segment which has been stretched and tightly wrapped around the articles to be packaged. The complete sealing unit includes a device for transversely stretching the side edges of the film segment used for bundling, protruding out of the sides of the bundled articles, and a device for sealing closed the film wrapping around the bundled articles.

REFERENCES:
patent: 3490194 (1970-01-01), Monaghan
patent: 3589100 (1971-06-01), Konars
patent: 3683586 (1972-08-01), Duckhinsky
patent: 3777452 (1973-12-01), Koenders
patent: 3884016 (1975-05-01), Bostrom
patent: 3967433 (1976-07-01), Benfiglioli
patent: 4078363 (1978-03-01), Ranzi
patent: 4137691 (1979-02-01), Takahashi
patent: 4143463 (1983-11-01), Lancaster
patent: 4279116 (1981-07-01), James
patent: 4548024 (1985-10-01), Fine
patent: 4573305 (1986-03-01), Wildmoser
patent: 4631903 (1986-12-01), Takamura

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