Patent · US Active

Racket with piezoelectric strings

US9358428B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Guillaume Savelli · Grenoble, FR
Philippe Coronel · Barraux, FR

Key dates

Filing date	Apr 21, 2015
Grant date	Jun 7, 2016
Priority date	—
Expiry date	Apr 21, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA63B2225/50
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A racket having a handle, a frame attached to the handle, and strings with two perpendicular strings stretched in the frame, running back and forth in the frame. The system also includes: for each string, a piezoelectric sheath coating said string along most of its length, said sheath being divided along its length into at least three piezoelectric areas capable of each generating an independent voltage according to mechanical stress exerted on the strings; and an electronic circuit connected to the piezoelectric areas of the strings to identify a portion of the strings submitted to the highest mechanical stress according to the voltages generated by the piezoelectric areas of the strings.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.