Synthetic leather covered game ball
US5664774A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S273/09
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A softball has a high end synthetic leather stitched cover formed from a low density non-woven fiber mat impregnated with polyurethane. The softball, which can be formed to meet association specifications, has a circumference of 11 or 12 inches and a cover to core weight ratio significantly less than 0.1, typically in the range of 0.08-0.16, while meeting durability requirements. The cover preferably has a thickness of 0.045-0.065 inches. Because a greater weight concentration is in the core of the ball, the ball has improved playability characteristics over conventional balls having heavier synthetic leather covers, while exhibiting a sound comparable to that of a leather covered softball when struck with a bat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.