Vacuum packaging apparatus and method

Details Vacuum packaging apparatus and method Vacuum packaging apparatus and method

2006-05-09

2006-05-09

Sipos, John (Department: 3721)

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

C053S079000, C053S097000, C053S134100, C053S403000, C053S434000, C383S007000

Reexamination Certificate

active

07040074

ABSTRACT:
A combined cutting blade and heat bar for use with a vacuum packaging device having a lid for sealing over the cavity of a base is disclosed. The cutting blade and heat bar are connected to one another and movable via a single actuating mechanism mounted to the lid. In use, in one step the combined mechanism is lowered with the heat bar unheated and the cutting element cuts slits in the bag for evacuation of the air. After air evacuation, the combined mechanism is lowered with the heat bar heated, melting the bag closed behind the slitted area of the bag.

REFERENCES:
patent: 3469364 (1969-09-01), Bischoff
patent: 3688463 (1972-09-01), Titchenal
patent: 3958391 (1976-05-01), Kujubu
patent: 4189897 (1980-02-01), Ailey et al.
patent: 4555025 (1985-11-01), Weinberg et al.
patent: 4779398 (1988-10-01), Glandon et al.
patent: 5056292 (1991-10-01), Natterer
patent: 5682727 (1997-11-01), Harte et al.

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