Adjustable Moment of Inertia Bat

摘要

An adjustable moment of inertia ball bat has a hollow outer ball bat shell defining an interior cavity having an open distal end. A central shaft is disposed in the interior cavity and a weight is disposed on the central shaft. The central shaft passes through and operatively engages the weight. An interior support secures an inner end of the central shaft and a bat end cap is adapted to be fitted into the open distal end of the ball bat shell. The weight moves in the ball bat shell on the central shaft to operatively adjust a moment of inertia of the ball bat.

主权项

1. An adjustable moment of inertia ball bat comprising:
a hollow outer ball bat shell defining an interior cavity having an open distal end; a central shaft disposed in said interior cavity; a weight disposed on said central shaft, said central shaft, passing through and operatively engaging said weight; an interior support securing an inner end of said central shaft; a bat end cap adapted to be fitted into said open distal end of said ball bat shell; and means for moving said weight in said ball bat shell on said central shaft to operatively adjust a moment of inertia of said ball bat.