Method of forming air layer over immersed surfaces of structure having immersed portions, and structure of coat layer formed over immersed surfaces
US5476056A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1994 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Jul 12, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method of reducing the fluid friction drag of ships and fluid transport channels and prevent contamination and corrosion of a structure having an immersed portion. The method of forming an air layer over an immersed surface of a structure having an immersed portion, comprising the steps of: covering the immersed surface of a structure (hull 1) having an immersed portion with a coating layer 3, which has depressions 6 and projections 7 at the surface thereof and which has at least vertices 7' of the projections 7 formed of a water-repellent material 8; and supplying air a to the surface 10 of the coating layer to form an air film 12 between the coating surface 10 and water 13.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.