The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2016
Filed:
Apr. 21, 2015
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Guillaume Savelli, Grenoble, FR;
Philippe Coronel, Barraux, FR;
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.