US 12,246,230 B2
Composite ball bats with transverse interlaminar interfaces
Frederic St-Laurent, Oak Park, CA (US); and Dewey Chauvin, Simi Valley, CA (US)
Assigned to EASTON DIAMOND SPORTS, LLC, Thousand Oaks, CA (US)
Filed by EASTON DIAMOND SPORTS, LLC, Thousand Oaks, CA (US)
Filed on Aug. 20, 2021, as Appl. No. 17/408,189.
Prior Publication US 2023/0057457 A1, Feb. 23, 2023
Int. Cl. A63B 59/54 (2015.01); B29C 70/30 (2006.01); B29C 70/54 (2006.01); B29K 105/08 (2006.01); B29L 31/52 (2006.01)
CPC A63B 59/54 (2015.10) [B29C 70/30 (2013.01); B29C 70/545 (2013.01); A63B 2209/02 (2013.01); B29K 2105/0881 (2013.01); B29L 2031/52 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A ball bat comprising a handle portion and a barrel portion attached to or continuous with the handle portion along a longitudinal axis of the ball bat, wherein the handle portion comprises a proximal end of the ball bat and the barrel portion comprises a distal end of the ball bat, the ball bat further comprising:
a flared surface positioned toward the distal end, the flared surface diverging away from the longitudinal axis as the flared surface extends toward the distal end; and
a tape of fiber material wrapped around the longitudinal axis in a helix extending along the longitudinal axis, wherein an end of the tape is positioned on, or attached to, the flared surface;
wherein interlaminar interfaces between adjacent turns of the tape are oriented obliquely relative to the longitudinal axis.