Receptacles – Closures – Floating closure
Patent
1986-12-01
1987-12-22
Pollard, Steven M.
Receptacles
Closures
Floating closure
220221, 48176, B65D 124
Patent
active
047141751
ABSTRACT:
A storage tank for liquids is provided with a vertically movable horizontal deck which separates a liquid above the deck from a liquid below the deck. The deck and tank have line and pulley mechanisms to prevent the deck from skewing or tilting during vertical displacement. The liquid above the deck can be the same or different than the liquid below the deck but generally they have different densities so that the deck can float at the interface between the liquids.
REFERENCES:
patent: 1894535 (1933-01-01), Laird
patent: 1894536 (1933-01-01), Laird
patent: 2050459 (1936-08-01), Pease
patent: 2403604 (1946-07-01), Laird
patent: 3419174 (1968-12-01), Engdahl
patent: 3438215 (1969-04-01), Frijlink
patent: 3680729 (1972-08-01), Bonavent et al.
patent: 4209271 (1980-06-01), McCabe et al.
CBI Industries, Inc.
Pollard Steven M.
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