Golf ball

Details Golf ball Golf ball

1999-06-22

2000-05-23

Young, Lee

Games using tangible projectile

Golf

Ball

473378, A63B 3712, A63B 3714

Patent

active

060660554

ABSTRACT:
A golf ball formed with half metal molds having stable flying ability without dispersion, regardless of hitting point on surface of the ball.
A parting line is latitude 0.degree., two pole portions are latitude 90.degree., an area of which latitude is 0.degree. to 17.degree. is a parting line vicinity, an area of which latitude is more than 17.degree. and less than 62.degree. is a shoulder portion, an area of which latitude is 62.degree. to 90 .degree. is a pole vicinity. And, when X represents total volume of dimples which belong to the parting line vicinity, Y represents total volume of dimples which belong to the pole vicinity, and Z represents total volume of dimples which belong to the shoulder portion, X/Z is set to be 0.58 to 0.72, Y/Z is set to be 0.22 to 0.30, and Y/X is set to be 0.35 to 0.48.

REFERENCES:
patent: 4744564 (1988-05-01), Yamada
patent: 5072945 (1991-12-01), Oka
patent: 5090705 (1992-02-01), Oka
patent: 5156404 (1992-10-01), Oka
patent: 5503397 (1996-04-01), Molitor
patent: 5588924 (1996-12-01), Sullivan
patent: 5766098 (1998-06-01), Molitor
patent: 5902193 (1999-05-01), Shimosaka
patent: 5906551 (1999-05-01), Kasashima
patent: 5908359 (1999-06-01), Shimosaka

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