Baseball bat swing measuring device
US4583733A · kind A · utility
15Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1985 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Aug 12, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B69/0002
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A batting practice trainer includes a laser oscillator placed in a sensor unit configured to resemble a home plate. Three beams are emitted from the sensor unit in a predetermined pattern, so that the height, speed, and angle of elevation of a swinging bat may be calculated from the passage of the bat across the beams. This is accomplished without interferring with the batters' swing or substantially modifying the bat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.