Golf ball with improved flight performance
First Claim
1. A golf ball with a plurality of dimples having an aerodynamic coefficient magnitude defined by Cmag={square root}(CL2+CD2) and an aerodynamic force angle defined by Angle=tan−
- 1(CL/CD), wherein CL is a lift coefficient and CD is a drag coefficient, wherein the golf ball comprises;
a first aerodynamic coefficient magnitude from about 0.24 to about 0.27 and a first aerodynamic force angle of about 31 degrees to about 35 degrees at a Reynolds Number of about 230000 and a spin ratio of about 0.085; and
a second aerodynamic coefficient magnitude from about 0.25 to about 0.28 and a second aerodynamic force angle of about 34 degrees to about 38 degrees at a Reynolds Number of about 207000 and a spin ratio of about 0.095; and
a third aerodynamic coefficient magnitude from about 0.26 to about 0.29 at a Reynolds Number of about 184000 and a spin ratio of about 0.106.
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Accused Products
Abstract
A golf ball with aerodynamic coefficient magnitude and aerodynamic force angle, resulting in improved flight performance, such as increased carry and flight consistency regardless of ball orientation. In particular, the present invention is directed to a golf ball having increased flight distance as defined by a set of aerodynamic requirements, at particular spin ratios and Reynolds Numbers. The invention is also directed toward golf balls with dimple diameters of greater than 6.5 percent of the ball diameter and dimples with a profile defined by a catenary curve.
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Citations
17 Claims
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1. A golf ball with a plurality of dimples having an aerodynamic coefficient magnitude defined by Cmag={square root}(CL2+CD2) and an aerodynamic force angle defined by Angle=tan−
- 1(CL/CD), wherein CL is a lift coefficient and CD is a drag coefficient, wherein the golf ball comprises;
a first aerodynamic coefficient magnitude from about 0.24 to about 0.27 and a first aerodynamic force angle of about 31 degrees to about 35 degrees at a Reynolds Number of about 230000 and a spin ratio of about 0.085; and
a second aerodynamic coefficient magnitude from about 0.25 to about 0.28 and a second aerodynamic force angle of about 34 degrees to about 38 degrees at a Reynolds Number of about 207000 and a spin ratio of about 0.095; and
a third aerodynamic coefficient magnitude from about 0.26 to about 0.29 at a Reynolds Number of about 184000 and a spin ratio of about 0.106. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- 1(CL/CD), wherein CL is a lift coefficient and CD is a drag coefficient, wherein the golf ball comprises;
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12. A golf ball with a plurality of dimples having an aerodynamic coefficient magnitude defined by Cmag={square root}(CL2+CD2) and an aerodynamic force angle defined by Angle=tan−
- 1(CL/CD), wherein CL is a lift coefficient and CD is a drag coefficient, wherein the golf ball comprises;
a first aerodynamic coefficient magnitude from about 0.24 to about 0.27 at a Reynolds Number of about 230000 and a spin ratio of about 0.085; and
a second aerodynamic coefficient magnitude from about 0.25 to about 0.28 at a Reynolds Number of about 207000 and a spin ratio of about 0.095; and
a third aerodynamic coefficient magnitude from about 0.26 to about 0.29 at a Reynolds Number of about 184000 and a spin ratio of about 0.106. - View Dependent Claims (13, 14, 15, 16, 17)
- 1(CL/CD), wherein CL is a lift coefficient and CD is a drag coefficient, wherein the golf ball comprises;
Specification