Closure for blister card type container

Details Closure for blister card type container Closure for blister card type container

1979-05-07

1980-06-24

Dixson, Jr., William T.

Special receptacle or package

Article housing attached to panel

Movable or detachable housing closure

206621, 206626, B65D 7300, B65D 554, B65D 6518

Patent

active

042090954

ABSTRACT:
A blister card type container comprising a thermoformed plastic enclosure bonded to one face of a paperstock card which forms a wall of the container includes locking structure formed integral with the card for locking a rectangular closure flap in the card in a closed position once the container is opened to prevent the accidental escape of contents from the container. The closure flap is hingedly connected along one edge thereof by a fold line to the card, while locking means provided integral with the card include first and second, spaced apart pairs of cut-lines in the card along one edge of the closure flap. One of the cut-lines in each of the pair thereof extend from one face of the card only partially into the latter and define a locking edge on the closure flap while the cut-line in each of the other pair thereof define locking flaps on the card. Upon initial opening of the closure flap, a tear line is created between the cutlines in the first and second pairs thereof, and the closure flap may be subsequently locked in its closed position by interposing the locking edges thereof between the first portion of the container and one side of the locking flaps.

REFERENCES:
patent: 3101884 (1963-08-01), Price
patent: 3255880 (1966-06-01), Grossman
patent: 3279596 (1966-10-01), Prym et al.
patent: 3599787 (1971-08-01), Webster, Jr.
patent: 3854652 (1974-12-01), Brackmann et al.

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