US2020398115A1PendingUtilityA1
Golf ball dimples defined by superposed curves
Est. expiryDec 22, 2030(~4.4 yrs left)· nominal 20-yr term from priority
A63B 37/0015A63B 37/0016A63B 37/0019A63B 37/0012A63B 37/002
47
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Claims
Abstract
The present invention is a golf ball which comprises cat-witch dimples on the surface thereof. The cat-witch dimples have a cross-sectional shape defined by the superposition of a catenary curve function and a Witch of Agnesi curve function. The cat-witch dimples include a plurality of similarly shaped cat-witch dimples having at least two different dimple diameters.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A golf ball having a surface with a plurality of recessed dimples thereon, including a plurality of similarly shaped cat-witch dimples having a circular plan shape and a profile defined by a cat-witch function resulting from the sum of a catenary function and a Witch of Agnesi function,
the catenary function being defined by the equation:
y
(
x
)
=
d
CAT
(
cosh
(
SF
×
x
)
-
1
)
cosh
(
SF
×
D
D
2
)
-
1
where
d CAT is chord depth (in inches),
D D is dimple diameter (in inches), and
SF is a constant and has the same value for all of the similarly shaped cat-witch dimples; and
the Witch of Agnesi function being defined by the equation:
y
(
x
)
=
-
C
1
a
3
x
2
+
C
2
a
2
+
C
1
a
3
D
D
2
2
+
C
2
a
2
where
D D is dimple diameter (in inches),
C 1 is a constant and has the same value for all of the similarly shaped cat-witch dimples,
C 2 is a constant and has the same value for all of the similarly shaped cat-witch dimples, and
a is a dynamic variable wherein, for any two of the similarly shaped cat-witch dimples, including a first cat-witch dimple having a dimple diameter D D1 and dynamic variable a 1 , and a second cat-witch dimple having a dimple diameter D D2 and dynamic variable a 2 , if D D1 =D D2 , then a 1 =a 2 , and if D D1 ≠D D2 , then a 1 ≠a 2 ;
wherein the similarly shaped cat-witch dimples include dimples having at least two different diameters.
2 . The golf ball of claim 1 , wherein the similarly shaped cat-witch dimples include dimples having at least three different diameters.
3 . The golf ball of claim 1 , wherein the similarly shaped cat-witch dimples include dimples having at least four different diameters.Join the waitlist — get patent alerts
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