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1. (WO1991018130) METHOD AND APPARATUS FOR THE PREVENTION OF FOULING AND/OR CORROSION OF STRUCTURES IN SEAWATER, BRACKISH WATER AND/OR FRESH WATER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/018130 International Application No.: PCT/US1991/001202
Publication Date: 28.11.1991 International Filing Date: 01.03.1991
Chapter 2 Demand Filed: 22.11.1991
IPC:
B08B 17/02 (2006.01) ,B63B 59/04 (2006.01) ,C23F 13/00 (2006.01) ,C23F 15/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
08
CLEANING
B
CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
17
Methods preventing fouling
02
Preventing deposition of fouling or of dust
B PERFORMING OPERATIONS; TRANSPORTING
63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B
SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
59
Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
04
Preventing hull fouling
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
13
Inhibiting corrosion of metals by anodic or cathodic protection
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
15
Other methods of preventing corrosion or incrustation
Applicants:
MARINE ENVIRONMENTAL RESEARCH, INC. [US/US]; 105 North 10th Street Morehead City, NC 28557, US
Inventors:
RIFFE, William, J.; US
CARTER, Jack, D.; US
Agent:
LAVALLEYE, Jean-Paul ; Oblon, Spivak, McClelland, Maier & Neustadt Crystal Square - Fourth Floor 1755 South Jefferson Davis Highway Arlington, VA 22202, US
Priority Data:
523,41815.05.1990US
658,58221.02.1991US
Title (EN) METHOD AND APPARATUS FOR THE PREVENTION OF FOULING AND/OR CORROSION OF STRUCTURES IN SEAWATER, BRACKISH WATER AND/OR FRESH WATER
(FR) PROCEDE ET APPAREIL EMPECHANT L'ENCRASSEMENT ET/OU LA CORROSION DES STRUCTURES EN CONTACT AVEC L'EAU DE MER, L'EAU SAUMATRE ET/OU L'EAU DOUCE
Abstract:
(EN) A device and method for preventing fouling and/or corrosion of the exposed surfaces of a structure which is in contact with seawater, brackish water, fresh water, or a combination of these. The system includes using a structure (10) having an exposed zinc-containing surface (16). At the exposed surface water interface a negative capacitive charge or an asymmetric alternating electrostatic is induced and maintained.
(FR) Procédé et appareil empêchant l'encrassement et/ou la corrosion des surfaces exposées d'une structure qui se trouve en contact avec de l'eau de mer, de l'eau saumâtre, de l'eau douce, ou un mélange de ces dernières. Le procédé comprend l'utilisation d'une structure (10) ayant une surface exposée contenant du zinc (16). Au niveau de l'interface entre la surface exposée et l'eau, une charge capacitive négative ou une charge électrostatique alternée asymétrique est induite et maintenue.
Designated States: AU, BR, CA, FI, HU, JP, KR, MC, NO, RO, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
FI925197NO19924419EP0631637JPH05507116CA2083263KR1019937000698
AU1991074861