Marine propeller
US7637722B1 · kind B1 · utility
23Cited by
21References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H1/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A marine propeller is provided with three blades, a skew angle of approximately 33 degrees, a rake angle of approximately 28.5 degrees, and a blade area ratio (BAR) of approximately 60 degrees. The rake is preferably progressive. Each of the blades is preferably tail loaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.