Method of making sift proof carton

Details Method of making sift proof carton Method of making sift proof carton

1995-06-07

1997-11-18

Lavinder, Jack W.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493130, 493131, B31B 162

Patent

active

056882181

ABSTRACT:
A method of folding and sealing the major and minor end flaps of a carton to provide a sift proof container wherein the method includes providing a carton having first and second inside and outside major flaps and a pair of minor flaps, and folding the minor flaps to substantially cover an open end of the carton. Opposite sides of the first inside major flap are then mitered and both the first and second major flaps are positioned in open positions with respect to the carton. The carton is then put in motion and, during such motion, an adhesive pattern is applied from a stationary adhesive nozzle member to selected areas of the second outside major flap and the minor flaps. The first inside major flap is then folded onto the minor flaps followed by the second outside major flap which provides direct sealing contact between the second outside major flap and both minor flaps as well as portions of the first inside major flap so as to provide the sift proof carton.

REFERENCES:
patent: 2996235 (1961-08-01), Turpin
patent: 3040958 (1962-06-01), Hagen
patent: 3140215 (1964-07-01), Russell
patent: 3194473 (1965-07-01), Rumberger
patent: 3286906 (1966-11-01), Rumberger
patent: 3934791 (1976-01-01), Dick et al.
patent: 4088263 (1978-05-01), Michetti
patent: 4501388 (1985-02-01), Cassidy
patent: 4530461 (1985-07-01), Adamek
patent: 4989780 (1991-02-01), Foote et al.

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