High efficiency hydrofoil and swim fin designs
US6050868A · kind A · utility
31Cited by
32References
2Claims
0Family size
Inventor
Key dates
| Filing date | Feb 10, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Feb 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H25/382
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydrofoil and swim fin is provided for increasing lift and decreasing drag. In a preferred embodiment, the hydrofoil has a swept back leading edge and is oriented at a reduced angle of attack substantially transverse to the direction of movement of the hydrofoil. Structural reinforcement may be used to inhibit hydrofoil deformation during use, and a recess may be incorporated into the hydrofoil to direct fluid flow with respect to the hydrofoil surface. Torsional stress that acts on the hydrofoil when in use is also addressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.