Open top plastic drum cover

Details Open top plastic drum cover Open top plastic drum cover

1993-02-16

1995-06-27

Moy, Joseph Man-Fu

Receptacles

Closures

Removable closure retained by ductile in situ deformation

220319, 220320, B65D 4532

Patent

active

054272645

ABSTRACT:
A cover for attachment to a cylindrical plastic drum, the drum having an open top end and a closed bottom end and an inside and an outside, the drum having a lifting flange on the outside thereof adjacent to the top end of the drum, the cover including a circular lid having a channel means integrally molded therewith extending around the periphery thereof for receiving the top end of the drum, the channel means having a downturned portion and a horizontal portion integrally molded together, the downturned portion being adapted to contact the outside of the top end of the drum and the flange, the downturned portion being thicker than the horizontal portion to form a tight seal with the outside of the drum when placed on the drum and connected to the drum by a locking ring.

REFERENCES:
patent: 2523639 (1950-09-01), Tucker
patent: 3344945 (1964-12-01), Bozek
patent: 3696962 (1972-10-01), Fehres
patent: 3815777 (1974-06-01), Churan
patent: 3851788 (1974-12-01), Hammes
patent: 4177934 (1979-12-01), Hammes et al.
patent: 4201306 (1980-05-01), DuBois et al.
patent: 4344546 (1982-08-01), Dry
patent: 4347947 (1982-09-01), Hammnes
patent: 4674650 (1987-06-01), Hamilton et al.
patent: 4709833 (1987-12-01), Granberg et al.

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