Disposable plastic lid

Details Disposable plastic lid Disposable plastic lid

1976-06-17

1978-02-28

Lowrance, George E.

Special receptacle or package

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

206520, 220380, B65D 2100, B65D 8562

Patent

active

040761231

ABSTRACT:
A thin wall disposable plastic lid designed to stack with other substantially identical lids without compacting having a circular closure wall and a surrounding downwardly extending skirt. A pair of downwardly extending, closely spaced, annular ribs are formed in the circular closure wall, and a plurality of upwardly extending bosses are also formed in the closure wall and span the space between the ribs. The bosses engage the bottom of the ribs of the next upper lid in the stack when nested to prevent the lids from jamming together.

REFERENCES:
patent: 3179283 (1965-04-01), Amberg
patent: 3321104 (1967-05-01), Edwards
patent: 3701456 (1972-10-01), Alroy
patent: 3931890 (1976-01-01), Davis
patent: 3954178 (1976-05-01), Mason

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