Patent ID: 8968125
Filing Date: 2015-03-03
Classification: A63B

Abstract:
1. A tennis racket, comprising: a handle with a butt end; a head configured to support strings; and a throat connecting the handle and the head; wherein the racket has a Power Maneuverability Ratio greater than about 4500, the Power Maneuverability Ratio governed by the equation: where SW=the moment of inertia in kilogram-centimeters squared of the tennis racket about a swingweight axis that is perpendicular to a longitudinal axis of the tennis racket, parallel to a tennis ball hitting surface contained by the head, and intersecting a point on the handle that is four inches from the butt end along the longitudinal axis, Wt=the weight of the racket in grams, b=the distance in millimeters between a center of gravity of the racket to the butt end, TW=the moment of inertia of the tennis racket about the longitudinal axis, and PUW=(Wt)(b).