Measuring and testing – Center of gravity; turning moment; metacentric height – Spherical specimen
Reexamination Certificate
2005-12-06
2005-12-06
Raevis, Robert (Department: 2856)
Measuring and testing
Center of gravity; turning moment; metacentric height
Spherical specimen
Reexamination Certificate
active
06971263
ABSTRACT:
A compact, portable, and expedient system for precisely testing the balance of balls used in sports and competitive games, which includes a test container slightly larger than the ball being tested. Preferably, the test container has several spaced-apart ball-centering guides, a fluid fill line, a removable cap, a sleeve attached to the cap and adapted for positioning a permanent ink marker relative to the golf ball being tested for consistent ball marking, and at least one associated packet of pre-measured ingredients for raising the specific gravity of the fluid used in the test container for balance testing. Optionally, a ball lifter can be used for removing a ball from the test container subsequent to balance testing. It is contemplated that an operator will be able to test multiple balls with a single packet of pre-mixed and pre-measured specific gravity increasing chemicals.
REFERENCES:
patent: 4111038 (1978-09-01), Olson et al.
patent: 4928516 (1990-05-01), Movick
www.wilsontrue.com—Test it Yourself-p. 1, no date.
Morse Dorothy S.
Raevis Robert
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