Bacon & Thomas
Inflatable ball with a digital pressure display
 An inflatable ball with a digital pressure display including a ball body, and a pressure display mechanism disposed in the ball body. The pressure display mechanism includes a pressure sensor and a display. The sensor may detect the pressure of air inside the ball body, and the display indicates the air pressure value, so that the user may know the amount of air pressure in the ball body any time. 
G A A A
G01L A63B A63B A63B
inventional additional inventional inventional
Tien-Tsai
Huang