Mold for a golf ball
First Claim
Patent Images
1. A golf ball having a non-planar parting line on its spherical surface, the golf ball comprising:
- a non-planar parting line resulting from superimposing of a base waveform with at least one shorter wavelength secondary waveform;
the secondary waveform defined by a series of concentric arcs, wherein the arcs have radii determined by corresponding dimples, the dimples having diameters defined by the relationship (1.005)DDIMPLE/2−
rarc−
(1.06)DDIMPLE/2;
adjacent arcs being connected with a straight line that is tangent to the arcs creating an acute angle α
;
the length of the straight line defined by LLINE=(r2+r3)/tan α
;
the sum of the lengths of the straight lines are defined by the lengths of the arcs as
(0.15)Σ
LARCS≦
Σ
LLINES≦
(0.50)Σ
LARCS;
and the length of the shortest line segment in the parting line relates to the corresponding dimple diameters defined by LMIN>
(0.05) DMIN.
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Abstract
A golf ball mold having a non-planar parting surface formed by superimposing a base waveform with a least one shorter secondary waveform. The base waveform is defined by a series of concentric arcs wherein adjacent arcs are connected with a straight line segment that is tangent to the arcs and creates an acute angle. The length of the straight line segment being critical to the accuracy and predictability of the parting line.
34 Citations
29 Claims
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1. A golf ball having a non-planar parting line on its spherical surface, the golf ball comprising:
-
a non-planar parting line resulting from superimposing of a base waveform with at least one shorter wavelength secondary waveform; the secondary waveform defined by a series of concentric arcs, wherein the arcs have radii determined by corresponding dimples, the dimples having diameters defined by the relationship (1.005)DDIMPLE/2−
rarc−
(1.06)DDIMPLE/2;adjacent arcs being connected with a straight line that is tangent to the arcs creating an acute angle α
;the length of the straight line defined by LLINE=(r2+r3)/tan α
;the sum of the lengths of the straight lines are defined by the lengths of the arcs as
(0.15)Σ
LARCS≦
Σ
LLINES≦
(0.50)Σ
LARCS;and the length of the shortest line segment in the parting line relates to the corresponding dimple diameters defined by LMIN>
(0.05) DMIN. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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-
21. A golf ball having a non-planar parting line on its spherical surface, the golf ball comprising:
a non-planar parting line resulting from a superposition of at least two waveforms, a base and secondary, with the secondary having a functional relationship to the base defined as - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
Specification