Patent ID: 8435143
Filing Date: 2013-05-07
Classification: A63B

Abstract:
1. A ball bat comprising: a bat frame having a handle portion and a barrel portion; and a performance adjusting annular member positioned within the barrel portion, the annular member having an outer diameter, a weight within the range of 0.4 to 1.85 ounces and a radial cross-sectional area, the radial cross sectional area having a maximum height and a maximum width, the maximum height over the maximum width defining a first aspect ratio, the outer diameter over the maximum width defining a second aspect ratio, the first aspect ratio being at least 0.5 and the second aspect ratio being greater than 1.5, the annular member having at least first and second annular portions, the first annular portion extending over no more than 50 percent of the width of the body and including over sixty percent of the mass of the body.