Method and apparatus for collecting pollutants in a body of...

Details Method and apparatus for collecting pollutants in a body of... Method and apparatus for collecting pollutants in a body of...

2002-05-03

2008-11-04

Drodge, Joseph W (Department: 1797)

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

C210S086000, C210S114000, C210S170110, C210S242100, C210S242300, C210S776000, C210S800000

Reexamination Certificate

active

07445719

ABSTRACT:
During collection of pollutants having a density lower than that of water and carried by a surface layer of a body of water, water of the surface layer is caused to flow into and through a collection vessel having a separation compartment with a top wall, pollutants entrained by the inflowing surface layer water are allowed to collect gravimetrically as a supernatant layer carried beneath the top wall of the separation compartment on water in the separation compartment, and changes of the weight of the collection vessel in the body of water are monitored. Intake and discharge phases may be initiated and terminated to in response to the said weight reaching predetermined values.

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patent: WO 97/07292 (1997-02-01), None
patent: WO 99/22078 (1999-05-01), None
patent: WO 01/12905 (2001-02-01), None

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