Polyethylene shipping drum

Details Polyethylene shipping drum Polyethylene shipping drum

1990-05-08

1992-03-17

Marcus, Stephen

Receptacles

Closures

Removable closure guided in rotary movement

220288, 220380, 220675, 220 94A, 215 10, 215217, 215330, 215352, 206519, B65D 5300

Patent

active

050960830

ABSTRACT:
A polyethylene shipping drum especially suited for shipping hazardous materials is disclosed. The drum comprises a molded container and closure which are threadably connected to each other to form a seal therebetween. A thread lock is provided for the threaded connection between the container and closure. The container has a plurality of indentations in the side wall thereof to provide ledges for stacking the containers one inside the other in a stable, nested relationship. An annular rim is provided on the closure with an inclined annular surface for retaining the sealing gasket in a groove without adhesives.

REFERENCES:
patent: 2467979 (1949-04-01), Krueger
patent: 3470927 (1969-10-01), Craig
patent: 4014452 (1977-03-01), Galer
patent: 4244481 (1981-01-01), Kornelis
patent: 4298132 (1981-11-01), Galer
patent: 4708258 (1987-04-01), Shaw et al.
patent: 4736859 (1988-04-01), Mayes et al.
patent: 4886184 (1989-12-01), Chamourian
patent: 4934547 (1990-06-01), Mayes et al.
patent: 4936448 (1990-06-01), Holloway
Enpac Corp. Product Information Sheet.
Drawing showing prior art sealing arrangement.

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