Golf ball
First Claim
1. A golf ball which comprises a spherical surface circumscribing a cubic octahedron, eight spherical triangles and six spherical squares divided by imaginary lines obtained by projecting edge lines of said cubic octahedron onto said spherical surface, and dimples arranged within said spherical triangles and said spherical squares approximately equally and in point or line symmetry without intersecting said imaginary lines, with the total number of said dimples being set in a range of from 340 to 355 and from 395 to 415 pieces, wherein four great circle zones are defined by connecting said imaginary lines and one zone of said four great circle zones is adapted to coincide with a parting line of a split metallic mold used for the manufacture of said golf ball.
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Accused Products
Abstract
A golf ball which includes a spherical surface circumscribing a cubic octahedron, eight spherical triangles (4) and six sperical squares (5) divided by imaginary lines obtained by projecting edge lines (3) of the cubic octahedron (2) onto the spherical surface, and dimples (D) arranged within the spherical triangles (4) and the spherical squares (5) approximately equally and in point or line symmetry without intersecting the imaginary lines, with the total number of the dimples (D) being set in a range of 300 to 600 pieces, and one zone (6A) of great circle zones (6) obtained by connecting the imaginary lines being adapted to coincide with a parting line of a split metallic mold.
51 Citations
10 Claims
- 1. A golf ball which comprises a spherical surface circumscribing a cubic octahedron, eight spherical triangles and six spherical squares divided by imaginary lines obtained by projecting edge lines of said cubic octahedron onto said spherical surface, and dimples arranged within said spherical triangles and said spherical squares approximately equally and in point or line symmetry without intersecting said imaginary lines, with the total number of said dimples being set in a range of from 340 to 355 and from 395 to 415 pieces, wherein four great circle zones are defined by connecting said imaginary lines and one zone of said four great circle zones is adapted to coincide with a parting line of a split metallic mold used for the manufacture of said golf ball.
Specification
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- Resources
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Current AssigneeSRI Sports Limited (Sumitomo Rubber Industries Limited)
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Original AssigneeSumitomo Rubber Industries Limited
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InventorsOka, Kengo
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Primary Examiner(s)Marlo, George J.
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Application NumberUS07/541,072Time in Patent Office567 DaysField of Search273/232, 273/213US Class Current473/380CPC Class CodesA63B 37/0004 Surface depressions or prot...A63B 37/0006 Arrangement or layout of di...A63B 37/0018 Specified number of dimples
