Stackable drum

Details Stackable drum Stackable drum

1994-03-11

1995-06-20

Pollard, Steven M.

Special receptacle or package

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

Having vertical projecting element or recess for interlock

206508, 220 405, B65D 742

Patent

active

054254540

ABSTRACT:
The invention concerns a large-capacity stackable drum with a substantially cylindrical sidewall and top and bottom ends. To improve the stackability in particular the long-term stackability an internal hydrostatic pressure which supports the side wall is initially produced, when stacking several drums one on top of the other, in the gas space above the content and in the contents, of the drums stacked underneath, by virtue of the elastic flexibility of the top and/or the bottom of the drum, until a reduced stacking load acting through the top rim or grip ring of the drum into the drumwall is produced or support provided through the bottom rim or grip ring.

REFERENCES:
patent: 3516571 (1970-06-01), Roper et al.
patent: 3955705 (1976-05-01), Dubois et al.
patent: 4088239 (1978-05-01), Uhlig
patent: 4489847 (1984-12-01), Ames
patent: 4500007 (1985-02-01), Stoll, III
patent: 4674648 (1987-06-01), Przytulla
patent: 4925049 (1990-05-01), Przytulla
patent: 4928839 (1990-05-01), Kruelskie
patent: 5014873 (1991-05-01), Clemens et al.
patent: 5018642 (1991-05-01), Przytulla

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