Shrink wrap packaging system with an ultrasonic side sealer

Details Shrink wrap packaging system with an ultrasonic side sealer Shrink wrap packaging system with an ultrasonic side sealer

1993-11-02

1996-05-28

Johnson, Linda

Package making

Methods

Conforming by stretching or shrinking of cover over contents

533735, 53459, 53557, 53568, 53DIG2, B65B 906, B65B 5302

Patent

active

055199836

ABSTRACT:
A shrink wrap packaging system has an ultrasonic side sealer. The ultrasonic side sealer contemporaneously slits and welds together at least two separate layers of shrink wrap film. The ultrasonic side sealer is useful in in-line shrink wrap packaging equipment in which a continuous side seal or weld is required to wrap shrink wrap completely around one or more packaged items.

REFERENCES:
patent: 3879239 (1975-04-01), Rager et al.
patent: 4219988 (1980-09-01), Shanklin et al.
patent: 4343864 (1982-08-01), Berejka
patent: 4433527 (1984-02-01), Ramsey et al.
patent: 4858416 (1989-08-01), Monaghan
patent: 4924659 (1990-05-01), Watanabe
patent: 4939889 (1990-07-01), Watanabe
patent: 4954191 (1990-09-01), Delespaul et al.
patent: 4970846 (1990-11-01), Leino
patent: 5050368 (1991-09-01), Noh
patent: 5074415 (1991-12-01), Kaplan et al.
Branson Ultrasonics Corporation Data Sheet PW-31; "Model F-10 Ultrasonic Slitter", 1981.

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