Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Luyu Yang0
Date of Patent
January 7, 2014
0Patent Application Number
128339810
Date Filed
July 10, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The spin improvement string pliers is a pivotally secured together plier device used to manually restructure and roughen the surface of a synthetic string on a strung tennis racquet by means of plastic deformation. The line grids on the pliers depress the string, leaving a series of indentations on the string surface that increases the friction between the string and the ball so that the tennis player can more easily generate top or under spin on a tennis ball or a racket ball.
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