Beak-type carton lock

Details Beak-type carton lock Beak-type carton lock

1986-07-17

1987-12-29

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

229 25EC, B65D 134

Patent

active

047155299

ABSTRACT:
A beak-type lock particularly useful for an egg carton includes an upstanding latching member having a horizontal rib at its latching surface, which latching member is adapted to engage an orifice having a shoulder at its bottom margin and a recessed upper margin, and wherein the upper margin in the locking position falls behind a portion of the upstanding latching member to provide a double-acting lock.

REFERENCES:
patent: 3749235 (1973-07-01), Boursier

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