Paperboard cartons with liquid-proof liners

Details Paperboard cartons with liquid-proof liners Paperboard cartons with liquid-proof liners

1975-02-24

1976-04-27

Price, William

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 17R, 229 51D, 229 52B, B65D 540, B65D 570

Patent

active

039529401

ABSTRACT:
A container for liquids such as milk comprises an outer paperboard carton and an inner tubular liner of flexible plastic film adhered to the carton, the liner being adhered to the walls of the carton adjacent diagonally opposite corners of one end of the carton. The sidewalls of the carton adjacent one of these corners are formed with a line of weakness, the liner being adhered to the carton on either side of this line so that the corner may be lifted from the remainder of the carton to split both the carton and the liner and allow the contents of the container to be discharged from a pouring lip thus formed at the corner of the container.

REFERENCES:
patent: 2337730 (1943-12-01), Berch
patent: 2434756 (1948-01-01), Brooks
patent: 2933229 (1960-04-01), Bensel
patent: 3387764 (1968-06-01), Forrest
patent: 3426955 (1969-02-01), Olson
patent: 3459357 (1969-08-01), Egger et al.
patent: 3464619 (1969-09-01), Nordstrom
patent: 3550833 (1970-12-01), Rahenkamp
patent: 3807624 (1974-04-01), Funkhouser

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