# US 5,704,858 A · Safety baseball

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- Number: US 5,704,858 A
- Document ID: US5704858A
- Status: Granted
- Kind: A
- Application number: 08/805,930
- Filed: 1997-02-25
- Granted: 1998-01-06
- Earliest claimed: 1997-02-25
- Inventors: Wen Hsiang Yang
- Web page: https://patentgrep.com/patent/US5704858A

## CPC

- A63B 37/12: Special coverings {, i.e. outer layer material (balls with finger holes A63B37/0001, golf ball covers A63B37/0023)}
- A63B 2208/12: specially adapted for children
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

A baseball includes a spherical core of foamable material and three layers of foamable material engaged on the spherical core and a cover layer engaged on the three layers. The intermediate layer of the three layers includes a hardness and a density greater than that of the other two layers and less than that of the spherical core, for allowing the other two layers to form a cushioning device and for preventing the players from being hurt by the baseball.

## Claims

### Claim 1

A baseball comprising:
a body including a spherical core of foamable material, and three layers of foamable material engaged on said spherical core, a first of said layers being engaged on said spherical core, a second of said layers being engaged on said first layer, and a third of said layers being engaged on said second layer, and
a cover layer engaged on the body,
said second layer of said body including a hardness and a density greater than that of said first layer and that of said third layer and less than that of said spherical core, for allowing said first layer and said third layer to form a cushioning device.