Football with fins
US5269514A · kind A · utility
54Cited by
10References
15Claims
0Family size
Inventors
Key dates
| Filing date | Jun 18, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Jun 18, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S273/20
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A ball of prolate (football-shaped) configuration having external fins oriented at an angle relative to the longitudinal axis to promote rotation in flight and having leading and trailing edges positioned such that the net center of aerodynamic lift of said fins is located rearwardly of the ball's longitudinal midpoint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.