US20020068649A1 - Golf ball having a dimple combination pattern - Google Patents

Golf ball having a dimple combination pattern Download PDF

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Publication number
US20020068649A1
US20020068649A1 US09730868 US73086800A US2002068649A1 US 20020068649 A1 US20020068649 A1 US 20020068649A1 US 09730868 US09730868 US 09730868 US 73086800 A US73086800 A US 73086800A US 2002068649 A1 US2002068649 A1 US 2002068649A1
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US
Grant status
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Patent type
Prior art keywords
dimples
circular
golf ball
ball
dimple
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09730868
Inventor
Thomas Kennedy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Callaway Golf Co
Original Assignee
Top-Flite Golf Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/0006Arrangement or layout of dimples
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/0012Dimple profile, i.e. cross-sectional view
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/0012Dimple profile, i.e. cross-sectional view
    • A63B37/0015Dimple profile, i.e. cross-sectional view with sub-dimples formed within main dimples
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/0018Specified number of dimples
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/0019Specified dimple depth
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/002Specified dimple diameter
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/007Characteristics of the ball as a whole
    • A63B37/0077Physical properties
    • A63B37/0089Coefficient of drag

Abstract

A combination dimple pattern on the surface of a golf ball is characterized by both circular and compound dimples. The compound dimples include a first circular dimple portion and a second circular dimple portion arranged in a bottom surface of the first circular portion, with the second circular dimple portion having a diameter less than the diameter of the first circular portion. The combination of compound and circular dimples on the surface of the ball improves the aerodynamic efficiency of the ball and increases the distance the ball will travel.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to a new dimple combination pattern on a golf ball surface which improves the flight characteristics of the ball. [0001]
  • According to the United States Golf Association (U.S.G.A.) rules, a golf ball may not have a weight in excess of 1.620 ounces or a diameter smaller than 1.680 inches. The initial velocity of balls conforming to U.S.G.A. regulations may not exceed 250 feet per second with a maximum tolerance of 2%. Initial velocity is measured on a standard machine kept by the U.S.G.A. A projection on a wheel rotating at a defined speed hits the test ball, and the length of time it takes the ball to traverse a set distance after impact is measured. U.S.G.A. regulations also require that a ball not travel a distance greater than 280 yards when hit by the U.S.G.A. outdoor driving machine under specified conditions. In addition to this specification, there is a tolerance of plus 4% and a 2% tolerance for test error. [0002]
  • These specifications limit how far a struck golf ball will travel in several ways. Increasing the weight of a golf ball tends to increase the distance it will travel and lower the trajectory. A ball having greater momentum is better able to overcome drag. Reducing the diameter of the ball also has the effect of increasing the distance it will travel when hit. This is believed to occur primarily because a smaller ball has a smaller projected area and, thus, a lower drag when traveling through the air. Increasing initial velocity increases the distance the ball will travel. [0003]
  • Drag on a golf ball is also reduced by forming a plurality of dimples, often circular, in the outer surface of the ball. The dimples serve to reduce the pressure differential between the front and rear of the ball as it travels through the air. [0004]
  • BRIEF DESCRIPTION OF THE PRIOR ART
  • Numerous dimple configurations for use on golf balls are well-known in the patented prior art, including contoured dimples. For example, the White U.S. Pat. No. 1,418,220 discloses a golf ball having rectangular dimples formed in the surface thereof. Each rectangular dimple includes in its bottom surface a small circular recess. Such a dimple configuration prolongs the life of the golf ball as well as improves the flight of the ball when struck. Golf balls having dimples with different configurations are also known in the patented prior art as shown by the U.S. patents to Nomura et al No. 4,869,512 and Oka et al No. 5,143,377, No. 5,174,578, and No. 5,338,039. Patent No. 5,174,578 for example discloses a golf ball having both circular and polygonal dimples. While the dimple combinations of the prior art increase the turbulence of the air flow across the surface of the golf ball during flight, there is still room for improvement in this regard as a function of dimple designs. [0005]
  • The present invention was developed in order to improve the aerodynamic efficiency of the dimples on a golf ball so that the ball will travel a straighter and a greater distance than conventional golf balls having circular dimples and golf balls with combinations of dimples as shown in the prior art. [0006]
  • SUMMARY OF THE INVENTION
  • Accordingly, it is a primary object of the present invention to provide a golf ball having a spherical surface including a plurality of dimples arranged in the surface. A first group of dimples in the ball surface has a circular configuration and a second group of dimples has a compound configuration including a first circular dimple portion and a second circular dimple portion arranged in a bottom surface of the first circular dimple portion. The second circular dimple portion has a diameter less than that of the first circular dimple portion, whereby the circular and compound dimples increase the turbulence of the air flow across the golf ball surface to improve the flight characteristics of the ball. [0007]
  • According to another object of the invention, there are a greater number of compound dimples than circular dimples, and the compound dimples are arranged around a circular dimple. [0008]
  • According to a further object of the invention, the diameter of the circular dimples and the diameter of the first circular portion of the compound dimples is equal.[0009]
  • BRIEF DESCRIPTION OF THE FIGURES
  • These and other objects according to the invention will become apparent from a study of the following specification when viewed in the light of the accompanying drawing, in which: [0010]
  • FIG. 1 is plan view of a golf ball including a plurality of compound and circular dimples according to the invention; [0011]
  • FIG. 2 is a sectional view of a circular dimple according to the invention; and [0012]
  • FIG. 3 is a sectional view of a compound dimple according to the invention.[0013]
  • DETAILED DESCRIPTION
  • In FIG. 1, there is shown a golf ball [0014] 2 having a spherical surface which contains a plurality of circular dimples 4, the circle being defined where the dimple intersects with the surface of the ball. The dimples may all be of the same diameter, or different diameter dimples may be provided. Each dimple includes an outer edge 6 having a circular geometric configuration and a concave bottom surface 8 in the golf ball as shown in FIG. 2. The circular dimples 4 have a depth d extending from the surface of the golf ball to the lowermost portion of the bottom surface.
  • The golf ball [0015] 2 further contains a second plurality or group of compound dimples 10. As used herein, a compound dimple is essentially a dimple within a dimple. As best shown in FIG. 3, the compound dimple includes a first circular portion defined by the intersection of the outer edge 12 of the dimple with the golf ball surface. The first portion has a bottom surface 14 in which is arranged a second circular dimple portion 16 similar to the dimple 10 but having a lesser diameter. The diameter is defined as the distance across the dimple portion between its outer edge. Preferably, the second dimple portion 16 is concentrically arranged within the first dimple portion. The compound dimple has a depth d2 extending between the ball surface and the bottom surface of the second dimple portion 16.
  • Preferably, the diameters of the circular dimples [0016] 4 and the compound dimples 10 are equal, although they need not be. According to the preferred embodiment shown in FIG. 1, there are a greater number of compound dimples 10 than there are circular dimples 4, with the compound dimples surrounding the circular dimples. The dimples can be arranged in a geometric pattern on the ball to maximize the dimple coverage on the ball surface. Depending on the geometric pattern, a total of 336, 410, 422 or 428 dimples (both circular and compound) are provided on the ball surface. Other numbers of dimples are possible.
  • In an alternate embodiment, the circular and compound dimples are randomly arranged on the ball surface. In either embodiment, the combination of circular and compound dimples significantly alters the air flow across the surface of the ball as it travels through the air when struck by a golf club. The altered air flow has increased turbulence and serves to decrease the drag on the ball, thereby increasing the distance that it will travel. [0017]
  • While in accordance with the provisions of the patent statutes the preferred forms and embodiments of the invention have been illustrated and described, it will be apparent to those of ordinary skill in the art that various changes and modifications may be made without deviating from the inventive concepts set forth above. [0018]

Claims (6)

    What is claimed is:
  1. 1. A golf ball having a spherical surface containing a plurality of dimples, a first group of said dimples having a circular configuration and a second group of said dimples having a compound configuration including a first circular dimple portion and a second circular dimple portion arranged in a bottom surface of said first circular dimple portion, said second circular dimple portion having a diameter less than that of said first circular dimple portion, whereby the circular and compound dimples increase the turbulence of the air flow at the golf ball surface to improve the flight characteristics of the ball.
  2. 2. A golf ball as defined in claim 1, wherein the number of dimples in said second group of dimples is greater than the number of dimples in said first group of dimples.
  3. 3. A golf ball as defined in claim 2, wherein the diameter of said dimples of said first group of dimples is equal to the diameter of said first circular dimple portion of said second group of dimples.
  4. 4. A golf ball as defined in claim 1, wherein dimples of said second group of dimples are arranged around a dimple of said first group of dimples.
  5. 5. A golf ball as defined in claim 1, wherein said first and second groups of dimples are randomly arranged about the surface of the golf ball.
  6. 6. A golf ball as defined in claim 1, wherein said first and second groups of dimples are arranged in a geometric pattern on the surface of the golf ball.
US09730868 2000-12-06 2000-12-06 Golf ball having a dimple combination pattern Abandoned US20020068649A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09730868 US20020068649A1 (en) 2000-12-06 2000-12-06 Golf ball having a dimple combination pattern

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09730868 US20020068649A1 (en) 2000-12-06 2000-12-06 Golf ball having a dimple combination pattern
PCT/US2001/046959 WO2002045805A1 (en) 2000-12-06 2001-12-06 Golf ball having a dimple combination pattern
AU2597402A AU2597402A (en) 2000-12-06 2001-12-06 Golf ball having a dimple combination pattern
CA 2430958 CA2430958A1 (en) 2000-12-06 2001-12-06 Golf ball having a dimple combination pattern
GB0312994A GB0312994D0 (en) 2000-12-06 2001-12-06 Golf ball having a dimple combination pattern

Publications (1)

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US20020068649A1 true true US20020068649A1 (en) 2002-06-06

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US09730868 Abandoned US20020068649A1 (en) 2000-12-06 2000-12-06 Golf ball having a dimple combination pattern

Country Status (4)

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US (1) US20020068649A1 (en)
CA (1) CA2430958A1 (en)
GB (1) GB0312994D0 (en)
WO (1) WO2002045805A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005027698A (en) * 2003-07-07 2005-02-03 Bridgestone Sports Co Ltd Golf ball
US20100261556A1 (en) * 2009-04-09 2010-10-14 Aero-X Golf Inc. Low lift golf ball
US9211442B2 (en) 2011-03-16 2015-12-15 Aero-X Golf, Inc. Anti-slice golf ball construction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0429398B2 (en) * 1984-02-07 1992-05-18
JP4509231B2 (en) * 1997-08-15 2010-07-21 ブリヂストンスポーツ株式会社 Golf ball
US5842937A (en) * 1997-10-22 1998-12-01 Acushnet Company Golf ball with surface texture defined by fractal geometry
JP3244490B2 (en) * 1998-07-22 2002-01-07 住友ゴム工業株式会社 Golf ball

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005027698A (en) * 2003-07-07 2005-02-03 Bridgestone Sports Co Ltd Golf ball
JP4506935B2 (en) * 2003-07-07 2010-07-21 ブリヂストンスポーツ株式会社 Golf ball
US20100267478A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. low lift golf ball
US20100261551A1 (en) * 2009-04-09 2010-10-14 Aero-X Golf Inc. Low lift golf ball
US20100261555A1 (en) * 2009-04-09 2010-10-14 Aero-X Golf Inc. Low lift golf ball
US20100267476A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267475A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267487A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100261556A1 (en) * 2009-04-09 2010-10-14 Aero-X Golf Inc. Low lift golf ball
US20100267482A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. low lift golf ball
US20100267477A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267472A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267473A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267479A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267470A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267490A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267469A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267488A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267474A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267485A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267483A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267486A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267489A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267480A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267471A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267491A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267481A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100267484A1 (en) * 2009-04-09 2010-10-21 Aero-X Golf Inc. Low lift golf ball
US20100273580A1 (en) * 2009-04-09 2010-10-28 Aero-X Golf Inc. Low lift golf ball
US20100273578A1 (en) * 2009-04-09 2010-10-28 Aero-X Golf Inc. Low lift golf ball
US20100273581A1 (en) * 2009-04-09 2010-10-28 Aero-X Golf Inc. Low lift golf ball
US20100273579A1 (en) * 2009-04-09 2010-10-28 Aero-X Golf Inc. Low lift golf ball
US20100273582A1 (en) * 2009-04-09 2010-10-28 Aero-X Golf Inc. Low lift golf ball
US20100323822A1 (en) * 2009-04-09 2010-12-23 Aero-X Golf Inc. Low lift golf ball
WO2010118393A3 (en) * 2009-04-09 2011-01-13 Aero-X Golf Inc. A low lift golf ball
US20110081992A1 (en) * 2009-04-09 2011-04-07 Aero-X Golf Inc. Low lift golf ball
US8038548B2 (en) 2009-04-09 2011-10-18 Aero-X Golf, Inc. Low lift golf ball
CN102458589A (en) * 2009-04-09 2012-05-16 艾尔罗-X高尔夫股份有限公司 A low lift golf ball
US8192307B2 (en) 2009-04-09 2012-06-05 Aero-X Golf, Inc. Low lift golf ball
US8192306B2 (en) 2009-04-09 2012-06-05 Aero-X Golf, Inc. Low lift golf ball
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Also Published As

Publication number Publication date Type
GB2389056A (en) 2003-12-03 application
CA2430958A1 (en) 2002-06-13 application
WO2002045805A1 (en) 2002-06-13 application
GB0312994D0 (en) 2003-07-09 grant

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Owner name: SPALDING SPORTS WORLDWIDE, INC., MASSACHUSETTS

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Effective date: 20030528

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Owner name: CALLAWAY GOLF COMPANY, CALIFORNIA

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Effective date: 20030915