Container

Details Container Container

1977-02-15

1978-05-30

Price, William

Special receptacle or package

With pallet feature

Knockdown or collapsible type

206469, 206484, 206633, 215256, 220276, 229 43, B65D 554, B65D 1704

Patent

active

040919307

ABSTRACT:
A container made from a foil or laminate material and provided with a cover which is sealed to a flange of the container by the application of heat. In order to facilitate removal of the cover, all or all but one of the corners of the container have cuts or kerfs extending from the outer edge up to the welded bead. To open the container, the tab defined by each kerf is grasped and pulled upwardly so that the adjacent strip of cover and flange is removed by tearing along one straight side of the polygonal container. The procedure is repeated at successive sides until all or all but one of the edge strips have been removed.

REFERENCES:
patent: 2103389 (1937-12-01), Salfisberg
patent: 2161093 (1939-06-01), Salifsberg
patent: 2791324 (1957-05-01), Knoop et al.
patent: 3049224 (1962-08-01), Fredette et al.
patent: 3335939 (1967-08-01), Robinson, Jr.
patent: 3338400 (1967-08-01), Edgworth et al.
patent: 3456784 (1969-07-01), Sirago
patent: 3831837 (1974-08-01), Finger et al.
patent: 3983994 (1976-10-01), Wyslotsky
patent: 3997677 (1976-12-01), Hirsch et al.
patent: 4014433 (1977-03-01), Cerwin

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