Envelopes – wrappers – and paperboard boxes – Paperboard box – End structure
Patent
1990-01-03
1990-11-20
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
End structure
229 55, B65D 314
Patent
active
049712411
ABSTRACT:
A drum for transporting viscous fluids and the like is disclosed. The improvement of this drum consists of a bottom assembly which breaks away from the bottom closure element when a force is applied to the bottom by a ram. The break away bottom is forced up through the drum by a ram, thereby forcing the contents out through the top of the drum.
REFERENCES:
patent: 2160072 (1939-05-01), Karl
patent: 2173585 (1939-09-01), Harrison
patent: 2347417 (1944-04-01), Kraft
patent: 2370018 (1945-02-01), Cosmo
patent: 2409460 (1946-10-01), Waters
patent: 3105787 (1963-10-01), Carpenter, Sr. et al.
patent: 3151012 (1964-09-01), Bergstrom
patent: 4303190 (1981-12-01), Ditto et al.
patent: 4333585 (1982-06-01), Del Bon
patent: 4785992 (1988-11-01), Goeppner
Elkins Gary E.
Greif Brothers Corporation
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