Patent ID: 8715118

Claim:
A ball bat extending along a longitudinal axis, the bat comprising: a handle portion; and a barrel portion having an outer surface and including a proximal member and a distal member, the proximal member having first and second end regions and the distal member having third and fourth end regions, the first end region being coupled to the handle portion, the second end region of the proximal member being coupled to the third end region of the distal member, and the fourth end region of the distal member coupled to an end cap, at least a portion of each of the proximal and distal members defining at least 30 percent of the outer surface of the barrel portion, the second end region overlapping the third end region to form an overlap region, and the overlap region being the only overlap region within the barrel portion, the single overlap region forming a single inner barrel wall underlying a single outer barrel wall, the single inner barrel wall being not axially segmented from the remaining regions of the barrel portion outside of the single overlap region, the overlap region extending over a minority of the total length of the barrel portion.