Exhaust device of boat
US7182659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2006 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Mar 30, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/245
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An open/close valve can decrease the exhaust resistance as much as possible in a usual operation. An open/close valve includes a valve casing and a valve element that is housed in the valve casing in a vertically movable manner. The valve casing includes a cylindrical portion that extends vertically. A through hole is formed in the cylindrical portion. A bottom portion is formed on a bottom of the cylindrical portion. A discharge inlet is formed in an upper portion of the cylindrical portion. The valve element includes a cylindrical body that is arranged along an inner surface of the cylindrical portion and has a height that maintains an opening of the through hole and a seal plate that covers an upper portion of the cylindrical body and has a size capable of closing the exhaust inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.