Self-locking cushioning member

Details Self-locking cushioning member Self-locking cushioning member

1976-10-04

1977-06-07

Moorhead, Davis T.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

206320, B65D 550, B65D 2512, B65D 8500

Patent

active

040278174

ABSTRACT:
The cushioning member of the present invention consists of a pair of legs which become locked together with a frictional fit when folded into their useable configuration. The cushioning member is prepared from a one-piece blank of cut and scored paperboard or the like and is readily produced with the aid of a minimum of folding steps to result in a structure comprising legs formed from multiple layers of the blank material joined by a common central blank portion. The improvement in the invention resides in the fact that the leg structures include strategically located cut-outs and interlocking tab portions which become frictionally engaged with one another when the legs are folded from their normally flat, unassembled condition to a substantially right angle useful condition.

REFERENCES:
patent: 3072313 (1963-01-01), Suempson
patent: 3337111 (1967-08-01), Petriekis et al.
patent: 3482759 (1969-12-01), Ortiz
patent: 3613985 (1971-10-01), Goodsite
patent: 3734389 (1973-05-01), Brown
patent: 3780929 (1973-12-01), Terrasi
patent: 3957158 (1976-05-01), Poggiali
patent: 3957196 (1976-05-01), Kellerman
patent: 3982682 (1976-09-01), Fremion

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