Anti-fouling system for substances in contact with seawater

Details Anti-fouling system for substances in contact with seawater Anti-fouling system for substances in contact with seawater

1989-11-14

1992-02-18

Basinger, Sherman

Ships

Building

Antifriction surfaces

114222, 204148, C23F 1300

Patent

active

050884328

ABSTRACT:
The current invention relates to an anti-fouling system for substances in contact with seawater which is constituted of the first conductive membrane that is coated on the outer side of the electric insulator mounted at the surface of the substance such as ships, marine structures in contact with seawater and is composed of thin sheets of metals having low specific resistance or metal oxide, spray-coated membrane, evaporated membrane or fused membrane, and the second conductive anti-fouling membrane having higher electric resistance than the first conductive membrane which is coated on the outer side of the above first conductive membrane and which is composed of the oxidation-resistant insoluble substance and the organic binder, and the power supply equipment that supplies direct currents flowing from the first conductive membrane through the second conductive membrane toward the electric conductor made of iron, copper or carbon located in seawater and opposite the second conductive membrane, owing to the constitution of which the prevention of rise in resistance because of consumption of the conductive membrane, the uniforming of current distribution and a high anti-fouling performance by using the low-resistant conductive membrane are achieved.

REFERENCES:
patent: 3510094 (1970-05-01), Clark
patent: 3625852 (1971-12-01), Anderson
patent: 3984302 (1976-10-01), Freedman et al.
patent: 4127687 (1978-11-01), Dupont

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