Open top plastic drum with plastic cover

Details Open top plastic drum with plastic cover Open top plastic drum with plastic cover

1993-07-02

1994-04-12

Moy, Joseph Man-Fu

Electricity: circuit makers and breakers

Electric switch details

Latches

220307, 220634, B65D 4500

Patent

active

053018532

ABSTRACT:
A plastic drum assembly includes a plastic body with an open top, terminated in a neck having two annular flexing zones, a plastic cover, and a ring for securing the cover to the body. The cover may also have flexing regions corresponding to the flexing regions on the neck. The flexing regions cooperate to permit the neck and the cover to flex in a hinging action in presence of an impact on the body to insure that the cover is not separated, thereby preventing spillage.

REFERENCES:
patent: 3424340 (1969-01-01), Rocher
patent: 3499574 (1970-03-01), Yates, Jr.
patent: 4177934 (1979-12-01), Hammes et al.
patent: 4349119 (1982-09-01), Letica
patent: 4500010 (1985-02-01), Schutz
patent: 4674650 (1987-06-01), Hamilton et al.
patent: 4741453 (1988-05-01), Stolzman
patent: 4805798 (1989-02-01), Stolzman
patent: 4813592 (1989-03-01), Stolzman
patent: 4880138 (1989-11-01), Pfeiffer et al.
patent: 4893861 (1990-01-01), Stoltzman

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