Clamshell type carton

Details Clamshell type carton Clamshell type carton

1990-06-15

1991-09-03

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

With closure for an access opening

229114, 22912529, 229146, 229148, B65D 520

Patent

active

050445499

ABSTRACT:
A clamshell carton formed from two integral blanks of sheet material. The front wall of the upper clamshell carries a latching aperture. The front wall of the lower clamshell half carriers a latch release panel, the latter carrying a horizontally despaired latching tongue normally engaged in the latching aperture to maintain the clamshell in a closed configuration. The latch release panel is normally resiliently biased to maintain the latch tongue engaged. The front wall of the upper clamshell half is provided with a recess along a free edge, the recess permitting direct finger force to be applied to the latch release panel to open the carton by disengaging the latch.

REFERENCES:
patent: 2393277 (1946-01-01), Beardsell
patent: 2839236 (1958-06-01), Dunning
patent: 3178090 (1965-04-01), Connell
patent: 3195798 (1965-07-01), Wilson
patent: 4516718 (1985-05-01), Forbes, Jr.
patent: 4848648 (1989-07-01), Fisman
patent: 4930681 (1990-06-01), Fultz et al.

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