Angular foot fin
US4025977A · kind A · utility
34Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Sep 12, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2031/115
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The following specification discloses a foot fin for propelling one through the water, having a blade surface that can be oriented within the same axis as the leg of a user. The foot fin enables one to propel oneself through the water and maintain a similar axial orientation of the driving portion of the fin, to the user's leg. In order to provide for walking while the fin is not being used in the water, a hinge point is inserted within the fin to allow it to be placed within the same general plane as the sole of a user's foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.