Tube-filling machine and a method for tube end sealing in...

Details Tube-filling machine and a method for tube end sealing in... Tube-filling machine and a method for tube end sealing in...

2006-04-04

2006-04-04

Sipos, John (Department: 3721)

Package making

Methods

Closing package or filled receptacle

C053S373900, C493S191000

Reexamination Certificate

active

07021032

ABSTRACT:
The invention provides tube-filling machines and methods for, in such machines, end sealing of double tubes (10), that is to say the tube type which has concentric packing tubes (11, 12) which are connected to a common tube shoulder (13) provided with a dispensing opening. The invention provides a two-part hot-gas nozzle (22) with individual supply of hot gas to the inner side of the inner tube and the outer tube for thermal activation of the scaling end of the double tube intended for heat sealing.

REFERENCES:
patent: 4035926 (1977-07-01), Farfaglia
patent: 4511426 (1985-04-01), Linner
patent: 5323589 (1994-06-01), Linner
patent: 5714023 (1998-02-01), Redfern
patent: 5775386 (1998-07-01), Connan
patent: 6574946 (2003-06-01), Linner
patent: 0 667 285 (1995-08-01), None
patent: 2 248 820 (1992-04-01), None
patent: WO-99/29572 (1999-06-01), None

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