Laminated ball bat
US6007440A · kind A · utility
Inventors
Key dates
| Filing date | Mar 27, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Mar 27, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2102/182
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A ball bat typically used in playing the game of baseball or softball is constructed of an inner layer bounded by first and second outer layers. The inner layer typically contains four inner lamina bonded together, while the first and second outer layers typically contain a single outer lamina. The inner laminas from the medial portion of the barrel of the bat, as well as the handle portion. The outer laminas form lateral portions of the barrel of the bat, and are gently tapered toward the handle of the bat. The thickness and relative position of each lamina is related to the results of non-destructive testing of the wood forming that lamina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.