Sift proof carton

Details Sift proof carton Sift proof carton

1978-01-30

1979-02-13

Moorhead, Davis T.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220461, B65D 556

Patent

active

041391195

ABSTRACT:
A paperboard carton is provided with an upper and lower continuous thermoplastic liner adhesively connected in spaced relation to the walls of the carton to form with the walls, a pouch for the contents of the carton. The pouch eliminates the need of a separate foil, glassine, plastic or like receptacle within the interior of the carton to preclude the contents from sifting through the walls and to provide an effective seal once the carton is opened, so as to maintain the carton contents, such as food, fresh.

REFERENCES:
patent: 2305771 (1942-12-01), Yates
patent: 3040963 (1962-06-01), Turpin
patent: 3799428 (1974-03-01), Lamming

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