Patent ID: 6398675
Filing Date: 2002-06-04
Classification: A63B

Abstract:
A bat comprising:an elongate tubular metal member having a circular cross-section with a striking portion of a defined length, said striking portion of the member having an interior surface defining an interior cavity, an elongate tubular insert located within said interior cavity, said insert having a length which is a majority of said defined length, and an exterior surface complementary to and throughout a majority of its length spaced radially inwardly from said interior surface a distance in a range of 0.002 to 0.012 inch, elastomeric material interposed between and substantially filling the space between said interior surface and said exterior surface, said elastomeric material having a durometer hardness in a range of between 20 and 120 Shore A and a resiliency in a range between 30% and 70%, and the interior of said striking portion of the member has a reduced internal diameter at one end thereof against which one end portion of the insert bears to inhibit movement of said insert in the direction of said one end.