Patent ID: 6971263

Claim:
A compact, portable, and expedient system for use with fluid and a marking device to precisely test the balance of substantially round balls used in sports and competitive games, said system comprising: a test container with an inside diameter dimension slightly larger than the diameter of the ball being tested, a height dimension sufficient for floating and freely spinning the ball being tested, a closed bottom end, and open top end, and a fluid fill line; a removable cap with a sleeve upwardly depending from said cap that is configured for removably securing a permanently marking device relative to the ball being tested in a position for reproducibly consistent ball marking; and at least one sealed packet of pre-measured ingredients that are selected for a combined ability to dissolve in fluid to create a test solution with a specific gravity able to float the ball being tested with only a very small portion of the ball remaining visible above the surface of said test solution during balance testing, so that when a quantity of fluid is placed into said test container between said closed bottom end and said fluid fill line, and said ingredients are transferred from said packet into said quantity of fluid and mixed therewith to produce said test solution, sports balls one at a time can be rotated in said test solution and those that are imbalanced can be precisely marked when a light side is revealed after rotation.