Container for bulk flowable materials

Details Container for bulk flowable materials Container for bulk flowable materials

1986-03-20

1988-05-10

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

220408, 220410, 220441, 229109, B65D 560, B65D 9004

Patent

active

047429518

ABSTRACT:
A container for bulk flowable materials in capacities greater than 500 litres, comprising a tubular inner member adapted to withstand pressure from the contained material as hoop stress in the tubular inner member and therefore to prevent bulging of the container walls, and a co-axial outer polygonal section member, the same length as, or larger than, the inner member, designed to withstand column loading from a plurality of similar containers stacked one on top of the other. The container is typically provided with end caps and a liner bag having an outlet spigot.
The outer member is preferably octagonal and constructed from multi-wall corrugated fibreboard.

REFERENCES:
patent: 1119089 (1914-12-01), McMenamin
patent: 1376770 (1921-05-01), Hunt
patent: 1550646 (1925-08-01), Larson
patent: 1821307 (1931-09-01), Howland
patent: 2278782 (1942-04-01), Harvey et al.
patent: 3247999 (1966-04-01), Stilwell
patent: 3349965 (1967-10-01), Krugger
patent: 4205775 (1980-06-01), Swan
patent: 4260071 (1981-04-01), Bamburg et al.
patent: 4421253 (1983-12-01), Crowley

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