Machine for the production of bags made of heat-sealed...

Details Machine for the production of bags made of heat-sealed... Machine for the production of bags made of heat-sealed...

2008-05-27

2010-06-29

Tawfik, Sameh H. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

C493S194000, C493S201000, C493S209000

Reexamination Certificate

active

07744516

ABSTRACT:
A machine for the production of bags made of alveolar or foamed plastic material starting from at least one continuous web with superimposed flaps fed continuously to a heat-sealing assembly. The heat-sealing assembly is actuated according to a pendular motion in synchronism with continuous advance of the web, and is pre-arranged for carrying out, at the same time as heat-sealing, half-cuts on the web, which is then folded in concertina fashion by means of a lapper assembly at output from the machine.

REFERENCES:
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patent: 4082941 (1978-04-01), Sukow et al.
patent: 4384438 (1983-05-01), Hilmersson
patent: 4518378 (1985-05-01), Schulze et al.
patent: 4563862 (1986-01-01), McElvy
patent: 4585508 (1986-04-01), Ehlers
patent: 5062253 (1991-11-01), Bacon et al.
patent: 5080747 (1992-01-01), Veix
patent: 5540035 (1996-07-01), Plahm et al.
patent: 5974770 (1999-11-01), Kume et al.
patent: 6041580 (2000-03-01), Wojtech

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