Packaging device for covering and sealing cover film onto tray

Details Packaging device for covering and sealing cover film onto tray Packaging device for covering and sealing cover film onto tray

2005-12-13

2008-08-19

Rada, Rinaldi I. (Department: 3721)

Package making

Closing packages and filled receptacles

Separate closure applying

C053S329400, C053S556000, C053S373500

Reexamination Certificate

active

07412810

ABSTRACT:
A packaging device is provided which prevents trays accommodating packaged items from being broken due to the tension in a film acting from above. The sealing base and the sealer perform a box motion by the combination of the back and forth movement of the general frame, and the upward and downward movement of the sealing base and the sealer, and the film is welded onto the flange of the tray while in movement. In this case, by setting the upper limit of the sealing base to the lower surface of the flange of the tray, it is possible for the deck plate to receive the tension of the film acting on the tray through the packaged item.

REFERENCES:
patent: 3637760 (1972-01-01), Rostyslaw
patent: 5689937 (1997-11-01), Gorlich et al.
patent: 6351928 (2002-03-01), Torre
patent: 6488972 (2002-12-01), Cerani
patent: 6834476 (2004-12-01), Konishi
patent: 6835440 (2004-12-01), Konishi et al.

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