Method of making a carton

Details Method of making a carton Method of making a carton

1982-05-10

1985-05-21

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493 87, 493133, B31B 164

Patent

active

045183775

ABSTRACT:
A gable-topped carton blank is cut from paperboard coated on both faces with thermoplastics. In the top closure, a loop of sub-panels provides a sealing fin. Each of two opposite sub-panels is folded inwardly upon itself and one is opened-out in forming a pouring spout. To reduce the tendency for the internal surface middle zone of this sub-panel to adhere to the internal surfaces of two other upper sub-panels during heat-sealing, these latter surfaces are formed in the blank with embossed recesses corresponding somewhat in position with recesses in sealing jaws.

REFERENCES:
patent: 3200557 (1965-08-01), Schwenk
patent: 3270940 (1966-09-01), Egleston et al.
patent: 3291369 (1966-12-01), Crawford
patent: 3295739 (1967-01-01), Wilcox
patent: 3319868 (1967-05-01), Huang et al.
patent: 3471076 (1969-10-01), Crawford
patent: 4244158 (1981-01-01), Nelham

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