Skimmer for floating roof tanks

Details Skimmer for floating roof tanks Skimmer for floating roof tanks

1983-08-15

1985-04-23

Fisher, Richard V.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Float

220219, B03B 528

Patent

active

045128839

ABSTRACT:
The invention provides for a skimmer (10) interconnected to the floating roof (30) of a floating roof tank (300) wherein a mixture of at least two immiscible liquids, including a lowest specific gravity liquid (50) and at least one higher specific gravity liquid (40), are stored. The skimmer (10) of the present invention is placed on the underside (20) of the floating roof (30). A funnel (140) is attached to the underside (20) of the roof (30) to extend downwardly into the liquid mixture wherein the funnel (140) has formed perforations (500) near the attachment of the funnel (140) to the underside (20) of the roof (30). A float (110) is operatively connected to the funnel (140) and selectively closes over the perforations (500) when the float (110) is in the higher specific gravity liquids (40) and opens over the perforations when the float (110) is disposed in the lowest specific gravity liquid (50 ).

REFERENCES:
patent: 2307498 (1943-01-01), Fleming
patent: 2913138 (1959-11-01), Swick
patent: 3535236 (1970-10-01), Travis
patent: 3628660 (1971-12-01), Veld
patent: 3836000 (1974-09-01), Jakubek
patent: 4082669 (1978-04-01), Bainbridge
patent: 4111806 (1978-09-01), Wright et al.
patent: 4132645 (1979-01-01), Bottomley et al.
patent: 4147629 (1979-04-01), Geurtsen
patent: 4431536 (1984-02-01), Thompson

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