Trick ball for throwing
US5033743A · kind A · utility
29Cited by
5References
5Claims
0Family size
Inventor
Key dates
| Filing date | Nov 29, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Nov 29, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S273/20
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A trick ball is provided with a single polar operture in tubular communication with each of a plurality of equatorial apertures which permit the ingress and egress of air when the ball is thrown. The movement of air through the apertures effects both random and predictable erratic ball movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.