Cross seal cooling for vertical form fill seal apparatus

Details Cross seal cooling for vertical form fill seal apparatus Cross seal cooling for vertical form fill seal apparatus

1986-12-08

1988-01-19

Culver, Horace M.

Package making

Methods

Enclosing contents within progressively formed web means

53551, 53373, 53479, B65B 908, B65B 5130

Patent

active

047197412

ABSTRACT:
A method and apparatus for improving transverse seal strength in a vertical form-fill-seal machine includes directing a cooling medium on a just formed transverse seal from an area beneath and on either side of the film, in an arcuate pattern to effect cooling during at least a portion of the downward movement of the seal toward a cutting means.

REFERENCES:
patent: 2956383 (1960-10-01), Gausman
patent: 3340129 (1967-09-01), Grevich
patent: 3611657 (1971-10-01), Inoue et al.
patent: 3703796 (1972-11-01), Inoue et al.
patent: 4506494 (1985-03-01), Shimoyama et al.
patent: 4532753 (1985-08-01), Kovacs
patent: 4589247 (1986-05-01), Tsuruta et al.

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