06-04-2017 дата публикации
Номер: US20170095704A1
Принадлежит:
The present invention relates to an unevenly weighted practice ball for sports (e.g., lacrosse) that, when used in training (e.g., in conjunction with a pitch back or rebounder), delivers the ball unpredictably to a player so that the player can improve their catching and reaction skills. Where the total weight of the practice ball is greater than that of a corresponding regulation ball, the player will also be benefitting from strength training. 1. An unevenly weighted sports ball comprising an elastomeric material and being defined by first and second hemispheres.2. The sports ball of claim 1 , wherein the material in each hemisphere is the same but there is a greater mass of the material in the first hemisphere than in the second hemisphere in at least one orientation of the ball.3. The sports ball of claim 1 , wherein the material in each hemisphere is different claim 1 , with the overall mass and/or density of the material in the first hemisphere being greater than the overall mass and/or density of the material in the second hemisphere in at least one orientation of the ball.4. The sports ball of claim 1 , wherein the ball comprises an outer shell having a cavity therein and an inner body freely disposed within the cavity.5. The sports ball of claim 1 , wherein the ball further comprises a metal claim 1 , ceramic claim 1 , or wood.6. The sports ball of claim 5 , wherein the metal is aluminum claim 5 , copper claim 5 , iron claim 5 , lead claim 5 , nickel claim 5 , tin claim 5 , titanium claim 5 , or an alloy thereof.7. The sports ball of claim 1 , wherein the elastomeric material is natural or synthetic rubber (polyisoprene) claim 1 , polybutadiene claim 1 , chloroprene rubber claim 1 , poly chloroprene claim 1 , butyl rubber claim 1 , styrene-butadine rubber claim 1 , nitrile rubber claim 1 , ethylene propylene rubber claim 1 , epichlorohydrin rubber claim 1 , polyacrylic rubber claim 1 , silicone rubber claim 1 , fluorosilicone rubber claim 1 , ...
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