Bottom structure of cardboard type liquid packing container

Details Bottom structure of cardboard type liquid packing container Bottom structure of cardboard type liquid packing container

1977-06-06

1978-09-12

Moorhead, Davis T.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

B65D 508

Patent

active

041131681

ABSTRACT:
A bottom structure for a cardboard liquid packing container wherein the corners of the bottom structure are trebly laminated without exterior leakage paths, the central exterior portions of one pair of opposing bottom sheets are quadruply laminated, and the end portions of the other pair of opposing bottom sheets are doubly laminated at the central portion of the bottom structure, the various laminated portions being heat sealed to economically produce a highly stable and leak-proof upright container.

REFERENCES:
patent: 460817 (1891-10-01), Clark
patent: 681323 (1901-08-01), Houghland
patent: 1924529 (1933-08-01), Wellman
patent: 2563619 (1951-08-01), Ringler
patent: 3330466 (1967-07-01), Eckles
patent: 3334802 (1967-08-01), Gooding
patent: 3362614 (1968-01-01), Farquhar
patent: 3412922 (1968-11-01), Miller et al.
patent: 3581977 (1971-06-01), Kirksey

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