Submersible or semi-submersible structures

Details Submersible or semi-submersible structures Submersible or semi-submersible structures

1981-02-06

1983-03-01

Blix, Trygve M.

Ships

Implements

Hull cleaning

114 67R, B63B 5902

Patent

active

043751997

ABSTRACT:
A submersible or semi-submersible structure, such as a boat, oil rig or pipeline, has an anti-fouling covering secured thereto. The covering comprises a mesh of copper or copper alloy embedded in a carrier, preferably of plastics material. The mesh has knuckles which on one surface are close to or protrude from the carrier so as to be accessible to sea water. The knuckles are spaced from the other surface so as to prevent contact between the structure and the mesh. A sea water permeable coating may be provided on the outer surface.

REFERENCES:
patent: 3497990 (1970-03-01), Jeffries
patent: 3620943 (1971-11-01), White
patent: 3971084 (1976-07-01), Spier
patent: 4170185 (1979-10-01), Murphy et al.

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