BALL BAT
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United States of America Patent
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Issued Date -
Jan 19, 2017
app pub date -
Jul 17, 2015
filing date -
Jul 17, 2015
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A ball bat is revealed. The ball bat includes a bat body made from metal. The bat body consists of a circular wall extended along a central axis thereof, a hollow space formed in the circular wall, and a plurality of ribs disposed axially and projecting from an inner surface of the circular wall toward the central axis of the bat body. Thus the inner surface of the circular wall is uneven. The hollow space is filled with foam to form a foam layer. By the arrangement of the foam layer and the uneven surface of the inner surface tightly connected to the foam layer, both the structural strength and the shock absorption of the ball bat are improved.
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