Welding unit and bag-making machine with such a welding unit

Details Welding unit and bag-making machine with such a welding unit Welding unit and bag-making machine with such a welding unit

1998-04-17

1999-10-19

Hail, III, Joseph J.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493206, 493208, B31B 164

Patent

active

059679611

ABSTRACT:
A welding unit for forming defining weld lines in an elongate web, preferably in a bag-making machine, includes a drive means, which is arranged in an endless loop, and at least one sealing jaw. The sealing jaw is connected to the drive means for movement along said loop. A fixed guide means extends in an endless loop essentially in parallel with the drive means. Each sealing jaw is received on a carriage, which is connected to the drive means and has at least one follower element, which is adapted to abut against and move along the guide means.

REFERENCES:
patent: 3775225 (1973-11-01), Schott, Jr.
patent: 3797368 (1974-03-01), Martelli
patent: 3908811 (1975-09-01), Cortese et al.
patent: 3988184 (1976-10-01), Howard
patent: 4947618 (1990-08-01), Schneider et al.
patent: 4950217 (1990-08-01), Stenqvist
patent: 5378302 (1995-01-01), Meister
patent: 5518490 (1996-05-01), Ziegelhoffer
patent: 5676513 (1997-10-01), Bingham

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