System for making waterproof bags by lining bag shell with tubul

Details System for making waterproof bags by lining bag shell with tubul System for making waterproof bags by lining bag shell with tubul

1998-11-12

2000-08-22

Kim, Eugene

Package making

With contents treating

Reshaping

53117, B65B 6304

Patent

active

061053376

ABSTRACT:
A system which stacks and folds waterproof tube film in a zigzag configuration in a film receiving box and then inserts the tube film in the film receiving box into an interior of a cylindrical bag. The system also includes a film unwinding means, which is provided with guide rollers for guiding tube film pulled from bobbin and tension controlling rollers. The film is preferably sealed to the interior of the cylindrical bag to form a waterproof bag.

REFERENCES:
patent: 3112588 (1963-12-01), Barraclough
patent: 4011708 (1977-03-01), Brown, Jr.
patent: 4054016 (1977-10-01), Van Keulen
patent: 4169345 (1979-10-01), Duwenga
patent: 4598529 (1986-07-01), Pongrass et al.
patent: 4756144 (1988-07-01), Jostler
patent: 5327704 (1994-07-01), Hoekzema et al.
patent: 5806276 (1998-09-01), Lerner et al.

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