Catamaran having a submerged airfoil
US5295453A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jan 31, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B1/248
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A catamaran includes a pair of floats, a deck extending in the air between the pair of floats as fixedly attached thereto and a connecting member extending in the water between the pair of floats as fixedly attached thereto. The connecting member has an airfoil-shaped section so that a lift is provided to the bow of the catamaran while it is cruising. Preferably, the airfoil-shaped section is inclined to define an attack angle in a range between 15 degrees and 25 degrees and most preferably approximately at 20 degrees. When applied to a working catamaran having a rotating impeller for collecting floats, a tail section is provided as extending downstream from a downstream edge of the air-foiled section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.