Method and training device to assure sportsmen a proper grip with membrane switch
US5439217A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jul 13, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2220/833
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The training device, to assure a proper grip, utilizes a thin sheet wrap sized to wrap around an outside grip surface of a racket handle, or a golf club handle or a hand grip surface. A non-domed membrane switch, is retained by the thin sheet wrap. A releasable element, such as a glue, strap or attachment mechanism, is utilized to secure the wrap on the handle. A portable power source is electrically coupled to an audible alarm, both of which are in turn electrically connected to the switch. When the switch closes, the alarm sounds. Piezoelectric pressure sensors can also be utilized. The method includes removably mounting at least one membrane switch with a wrap about a handle, mounting a portable power supply and an audible alarm on the racket, club or near the grip surface, electrically connecting together the power supply, alarm and switch, compressibly closing the switch with a proper hand grip over a distance which does not exceed the thickness of the wrap, and audibly announcing the closure of the switch by activation of the alarm. By audibly indicating unnecessary or excessive hand gripping force, the user is audibly prompted to release his or her grip, thereby reducing str…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.