Patent ID: 9132329
Filing Date: 2015-09-15
Classification: A63B

Abstract:
1. A training aid for teaching the proper mechanics of throwing a baseball or softball from one player to another, the training aid teaching a player the correct position of the thumb on their throwing hand after the player has drawn back their arm to throw the ball, but before the arm moves forward in the throwing motion, comprising: a ball whose size and shape corresponds to that of a baseball or softball; and, a first projection extending from the side of the ball and a second projection extending from the side of the ball oppositely of the first projection, the projections comprising one of a rod or a bar and with each projection having indicia thereon indicating to the player, when the player has drawn the ball back into a throwing position, whether or not they are gripping the ball properly; and, corresponding halves of the rods or bars being of one color and the other corresponding halves being of a different color whereby if the portions of the rods or bars seen by the player when they have drawn the ball back correctly would be one color; while, if the ball is drawn back incorrectly the color they would see would be the other color.