Method and apparatus for sealing bags

Details Method and apparatus for sealing bags Method and apparatus for sealing bags

1982-08-17

1985-05-21

Culver, Horace M.

Package making

Methods

Enclosing contents within progressively formed web means

53451, 53550, 53551, 53383, 118411, 156578, B65B 5126, B65B 910, B65B 912

Patent

active

045177872

ABSTRACT:
A method and apparatus for forming and sealing bags in a continuous or intermittent manner where the bags can be filled during the forming operation. Specifically, there is disclosed an apparatus for supplying a sheet or film of bag material to a mechanism for forming the sheet into a tube having overlapping edges in a longitudinal direction. A series of plates are arranged in the forming apparatus for applying adhesive in spaced lines or strips on opposed surfaces of the overlapping edges. After the adhesive is applied in this manner the opposed surfaces of the overlapped edges are pressed together to seal the edges. The tube is sealed in a transverse direction at the bottom, filled in a conventional manner, sealed in a transverse direction at the top, and then cut to form the bag filled with food or other material, ready for distribution and sale.

REFERENCES:
patent: 510110 (1893-01-01), Berkan
patent: 896504 (1908-08-01), Adams
patent: 2914108 (1959-11-01), Coakley
patent: 2916012 (1959-12-01), Hergenrother
patent: 3032008 (1962-05-01), Land et al.
patent: 3078824 (1963-02-01), Bechle
patent: 3918235 (1975-11-01), Brown, Jr. et al.
patent: 3938467 (1976-02-01), Radowicz
patent: 4038442 (1977-07-01), Utumi
patent: 4143187 (1979-03-01), Pilgrim et al.

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