US5090705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf ball
Assignee: Dunlop Sports Co Ltd
•
Filing: 1990-08-13
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Granted: 1992-02-25
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Expires: 2010-08-13
Abstract
Abstract A golf ball which comprises a spherical surface having a parting line at its equator and having a plurality of dimples formed thereon, wherein the dimples are formed so that the ratio, y, of the sum total of the flat surface area of the dimples to the surface area of the same sphere having no dimples formed thereon is within the range ((0.046) (X).sup.1/2 -0.172)+0.04≧Y≧((0.046)(X).sup.1/2 -0.172)-0.04 wherein X represents the total number of dimples; and wherein a dimple lying within a region S, which extends from 30° below the parting line to 30° above the parting line, has a value VS, and a dimple of the same diameter only lying within the region P, which comprises the surface of the sphere that is not within region S, has a volume VP, such that the ratio of the volumes of dimples having the same diameters but in different regions is within the range of; 1.02≦VS/VP <1.10, when y<0.70, 1.10≦VS/VP, <1.18, when 0.70≦y<0.80, and 1.18≦VS/VP, when 0.80≦Y.
Inventors
- 👤 Kengo Oka
- 👤 Susumu Yoshida
- 👤 Yoshiyuki Mimoto
- 👤 Tadahiro Ebisuno
- 👤 Yoshikazu Yabuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:08
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/0003; A63B37/0004; A63B37/0017; A63B37/0006; A63B37/00065; A63B37/0018; A63B37/002; A63B37/00215; A63B37/0023; A63B37/0024; A63B37/0026; A63B37/005; A63B37/0051; A63B37/0052; A63B37/007; A63B37/0077; A63B37/008; A63B37/0087
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
162 words
A golf ball which comprises a spherical surface having a parting line at its equator and having a plurality of dimples formed thereon, wherein said dimples are formed so that the ration, y, of the sum total of the flat surface area of the dimples to the surface area of the same sphere having no dimples formed thereon is within the range ((0.046)(X).sup.1/2 -0.172)+0.04≧y≧((0.046)(X).sup.1/2 -0.172)-0.04 wherein X represents the total number of dimples; and wherein a dimple lying within a region S, which extends from 30° below the parting line to 30° above the parting line, has a volume VS, and a dimple of the same diameter only lying within the region P, which comprises the surface of the sphere that is not within region S, has a volume VP, such that the ratio of the volumes of dimples having the same diameters but in different regions is within the range of; 1.02≦VS/VP<1.10, when y<0.70, 1.10≦VS/VP<1.18, when 0.70≦y<0.80, and 1.18≦VS/VP, when 0.80≦y.
Claim 2
Dependent Claim
162 words
A golf ball which comprises a spherical surface having a parting line at its equator and having a plurality of dimples formed thereon, wherein said dimples are formed so that the ration, y, of the sum total of the flat surface area of the dimples to the surface area of the same sphere having no dimples formed thereon is within the range ((0.046)(X).sup.1/2 -0.172)+0.04≧y≧((0.046)(X).sup.1/2 -0.172)-0.04 wherein X represents the total number of dimples; and wherein a dimple lying within a region S, which extends from 30° below the parting line to 30° above the parting line, has a volume VS, and a dimple of the same diameter only lying within the region P, which comprises the surface of the sphere that is not within region S, has a volume VP, such that the ratio of the volumes of dimples having the same diameters but in different regions is within the range of; 1.02≦VS/VP<1.10, when y<0.70, 1.10≦VS/VP<1.18, when 0.70≦y<0.80, and 1.18≦VS/VP, when 0.80≦y.
Claim 3
Dependent Claim
41 words
The golf ball according to claim 1, wherein said dimples consist of 186 dimples having a diameter of 3.95mm, 150 dimples having a diameter of 3.55mm, 60 dimples having a diameter of 3.05mm, and 84 dimples having a diameter of 2.75mm.
Claim 4
Dependent Claim
41 words
The golf ball according to claim 1, wherein said dimples consist of 144 dimples having a diameter of 4.20mm, 96 dimples having a diameter of 3.85mm, 48 dimples having a diameter of 3.45mm, and 144 dimples having a diameter of 3.15mm.
Claim 5
Dependent Claim
41 words
The golf ball according to claim 1, wherein said dimples consist of 216 dimples having a diameter of 4.05mm, 48 dimples having a diameter of 3.90mm, 96 dimples having a diameter of 3.50mm, and 48 dimples having a diameter of 2.80mm.
Claim 6
Dependent Claim
41 words
The golf ball according to claim 1, wherein said dimples consist of 144 dimples having a diameter of 4.15mm, 144 dimples having a diameter of 3.85mm, 48 dimples having a diameter of 3.35mm, and 48 dimples having a diameter of 2.95mm.
Claim 7
Dependent Claim
27 words
The golf ball according to claim 1, wherein said dimples consists of 144 dimples having a diameter of 3.95mm, and 198 dimples having a diameter of 3.70mm.
Claim 8
Dependent Claim
20 words
The golf ball according to claim 1, wherein said dimples include a plurality of kinds of dimples having different diameters.
Claim 9
Dependent Claim
24 words
The golf ball according to claim 1, wherein the total volumes of the dimples are in the range of 290 to 370mm 3 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |