Teaching aid
US8864599B2 · kind B2 · utility
1Cited by
34References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jan 7, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/50
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A system for improving a swing has a transmitter coil for creating an electromagnetic field aligned with respect to a desired swing plane of a sporting implement and a plurality of coils for detecting an actual swing plane relative to the desired swing plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.