Structure for locking partitions in open position

Details Structure for locking partitions in open position Structure for locking partitions in open position

1976-06-28

1978-01-31

Price, William

Envelopes, wrappers, and paperboard boxes

Paperboard box

229 42, 229 29E, 229 15, B65D 548

Patent

active

040711854

ABSTRACT:
A partition is disclosed wherein one strip has a tab formed at the inner end of an elongated slot, such tab having score lines to facilitate inward collapsing thereof when engaged by the inner end of an elongated slot in the other strip. In the strip with the tab, the outline punched therein for the tab has pronounced shoulders spaced apart less than the width of the tab proper, so that the body of the tab locks against such shoulders when the tab is collapsed. Thus collapsed, the body of the tab extends along the surface of the other strip and prevents relative rotation of the strips towards collapsed condition.

REFERENCES:
patent: 650183 (1900-05-01), Lindley
patent: 1880074 (1932-09-01), Coyle
patent: 1894402 (1933-01-01), Inman
patent: 2711038 (1955-06-01), Snider et al.
patent: 3963169 (1976-06-01), Gardner

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