Hillerich Bradsby Company

Kaye K MacKay

Jack W MacKay, Jr

A tubular metal ball bat includes a tubular barrel having a hitting zone and an end cap at a distal end thereof, a handle at a proximal end thereof and a pressurized bladder positioned in the bat barrel and in the area of the hitting zone. A method is also disclosed for inserting and anchoring the pressurized bladder in the hitting zone. A variety of pressurized bladder configurations are disclosed with valves for pressurizing the bladders in the bat barrel. The bladder can include one or more separate bladders or compartments which are designed to occupy a predetermined length of the hitting zone.

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Mt. Pleasant, TX, United States of America

Kaye K MacKay