Fill and seal machine for reclosable bags

Details Fill and seal machine for reclosable bags Fill and seal machine for reclosable bags

1987-06-29

1988-12-13

Coan, James F.

Package making

Methods

Enclosing contents within progressively formed web means

53552, 226197, 493213, B65B 908

Patent

active

047901268

ABSTRACT:
A method and apparatus for form, fill, and seal operation using bag-making sheet material having complementary male and female reclosable profiles includes sheet guide and tensioning devices to ensure continuous, effective packaging. The inventive features address the presence of tracking problems in sheet feed using bag material having profiles and being of a laminated type, and serve to ensure wrinkle-free, acceptable sealing of bag edges.

REFERENCES:
patent: 1237595 (1917-08-01), Wood
patent: 2751732 (1956-06-01), Woppman
patent: 3815317 (1974-06-01), Toss
patent: 4355494 (1982-10-01), Tilman
patent: 4534159 (1985-08-01), Kelly
patent: 4589145 (1986-05-01), Van Erden et al.
patent: 4617683 (1986-10-01), Christoff

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