Game ball

• US 4,830,370 A
• Filed: 12/21/1987
• Issued: 05/16/1989
• Est. Priority Date: 12/21/1987
• Status: Expired due to Fees

• Current Assignee: Robert M. Schlesinger
• Original Assignee: Robert M. Schlesinger
• Inventors: Schlesinger, Robert M.
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US07/135,822
• Time in Patent Office: 512 Days
• Field of Search: 273/213, 273/186 D, 273/183 C, 273/418, 273/61 R, 273/29 A, 273/58 F, 273/58 H, 273/58 B, 273/58 BA, 273/61 A, 273/61 D
• US Class Current: 473/577
• CPC Class Codes: A63B 2102/06 Squash
• CPC Class Codes: A63B 39/00 Hollow non-inflatable balls , i.e. having no valves rigid balls A63B37/00

Abstract

A game ball of the type having a flexible resilient wall defining a space inside the ball that is fluid tight and contains a compressible fluid is given a break signalling capability by placing a small quantity of very fine particulate material in that space inside the ball.

Claims

1. A game ball comprising a flexible resilient imperforate wall defining a fluid-tight space inside the wall, a compressible fluid in said interior space and a small quantity of very fine particulate material in said interior space which cannot escape from said interior space until after there is a break in the wall of the ball that renders the ball defective.

2. The game ball defined in claim 1 wherein said particulate material is brightly colored.

3. The game ball defined in claim 1 wherein said particulate material comprises talc or Fuller'"'"'s earth.

4. The game ball defined in claim 1 wherein said ball is a squash ball or a tennis ball.