Liquid tight pouring carton

Details Liquid tight pouring carton Liquid tight pouring carton

1980-03-19

1982-12-07

Marcus, Stephen

Special receptacle or package

With pallet feature

Knockdown or collapsible type

206628, 229 17R, B65J 574

Patent

active

043622453

ABSTRACT:
A liquid tight pouring carton is provided, having a pour spout which is easily opened by removal of a tear tab, and can be fully extended thereafter. The tear tab is provided as part of a sealed fin on the top of the carton; the tear tab having a line of weakness extending through the paperboard, but not into or through the barrier and sealing layers of foil and plastic. Until the tab is removed, the carton is completely sealed to leakage or contamination. Additional features provide for reliable and easy opening of the carton.
The invention also contemplates a blank suitable for erection into the carton, and a method of making the blank and erecting and sealing it.

REFERENCES:
patent: 2321139 (1943-06-01), Gruger
patent: 2474476 (1949-06-01), Guyer
patent: 3232514 (1966-02-01), Swede et al.
patent: 3333758 (1967-08-01), Buchner
patent: 3471991 (1969-10-01), Rausing
patent: 3795359 (1974-03-01), Rausing
patent: 3892347 (1975-07-01), Egleston
patent: 4078715 (1978-03-01), Larsson et al.
patent: 4248351 (1981-02-01), Berg

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