Thin-walled stackable container lid

Details Thin-walled stackable container lid Thin-walled stackable container lid

1986-11-19

1987-11-03

Lowrance, George E.

Special receptacle or package

Structural features for vertical stacking, i.e., similar...

206520, 220306, 220380, B65D 2100, B65D 8562

Patent

active

047038578

ABSTRACT:
The invention provides a stackable thermoplastic container lid having a U-section sealing rib receivable in a container opening. An outer circular flange on the lid has a depending snap rim provided with bevelled detent elements that can cammingly engage the flange of an identical underlying lid in response to transaxial forces applied to the underlying lid, thereby to lift the sealing rib of the upper lid out of the underlying lid so as to enable lateral bottom-feed of lids from a stack of the same.

REFERENCES:
patent: 3112841 (1963-12-01), Martinelli
patent: 3339786 (1967-09-01), Biglin
patent: 3442420 (1969-05-01), Edwards
patent: 3612342 (1971-10-01), Rathburn
patent: 3724710 (1973-04-01), Davis
patent: 4076123 (1978-02-01), Davis

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