EP1234602A2 - Rillenkonfiguration eines Golfschlägers - Google Patents

Rillenkonfiguration eines Golfschlägers Download PDF

Info

Publication number
EP1234602A2
EP1234602A2 EP01130385A EP01130385A EP1234602A2 EP 1234602 A2 EP1234602 A2 EP 1234602A2 EP 01130385 A EP01130385 A EP 01130385A EP 01130385 A EP01130385 A EP 01130385A EP 1234602 A2 EP1234602 A2 EP 1234602A2
Authority
EP
European Patent Office
Prior art keywords
club face
club
degrees
groove
golf club
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.)
Withdrawn
Application number
EP01130385A
Other languages
English (en)
French (fr)
Other versions
EP1234602A3 (de
Inventor
Chris Chappell
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.)
TaylorMade Golf Co Inc
Original Assignee
Dunlop Sport Group Americas Inc
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
Application filed by Dunlop Sport Group Americas Inc filed Critical Dunlop Sport Group Americas Inc
Publication of EP1234602A2 publication Critical patent/EP1234602A2/de
Publication of EP1234602A3 publication Critical patent/EP1234602A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/047—Heads iron-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0408—Heads characterised by specific dimensions, e.g. thickness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0445—Details of grooves or the like on the impact surface
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0466—Heads wood-type

Definitions

  • the present invention relates to the grooves formed across the club face of golf clubs including irons, drivers, woods and particularly wedges, and to a set of modified groove configurations.
  • Golf club wedges are usually designed with varying degrees of loft generally ranging from a minimum of about 48 degrees to a maximum of about 64 degrees. The varying degrees of loft help to control the trajectory and distance a golf ball will travel.
  • control is obtained in part by means of backspin.
  • the golf ball is contacted against the club face with substantial deformation.
  • Control of the ball in flight is partly exercised by backspin, and more control is obtained on the initial bounce (i.e., the ball will "bite” or hold the surface better after the initial bounce) when the ball has the proper backspin.
  • the higher the rate of backspin the greater the control.
  • the present invention achieves the objectives set forth above by providing at least one modified groove, a modified groove in combination with conventional grooves, or preferably a set of modified groove configurations comprising angled slots, angled slots with double chamfers, Y-shaped slots and circular portions.
  • Each configuration is adaptable to all golf clubs including irons, drivers, woods, and particularly wedges.
  • Each groove is cut repetitively and is arranged for taking a better grip on the ball.
  • the grooves are provided with three primary surfaces, which define said grooves. A contact face is at the low side of the groove. Contact with the golf ball is primarily on the club face with the contact face achieving some additional contact so that a better grip is taken at the instant of impact. This enhanced grip induces more backspin on the ball which in turn provides more control over the ball when it lands on the playing surface (i.e., the ball will hold the playing surface better after its initial bounce).
  • the present disclosure applies to wedges, but is adaptable to all other golf clubs including irons, drivers and woods.
  • the groove design of this invention is ideal for extending the life of golf balls through the reduction of damage from the clubs design.
  • the design allows for maximum golf ball performance by increasing spin, while simultaneously reducing cover damage of the golf ball. While manufacturers of golf balls constantly searched for ways of increasing golf ball life, they ignored the main cause of early golf ball failure, the design of the club face, specifically the grooves.
  • a method for preventing the damage to a golf ball from a golf club, while increasing the performance of the club relates to reduction of sharp angled grooves that hit the cover of the golf ball at the point formed.
  • the method requires that the leading edge side of the groove be an effective obtuse angle and the trailing edge side of the groove form no greater than a 90 degree angle with club face 16, though it is preferably an obtuse angle also.
  • a leading edge of a groove is the side of the groove closest to the top ridge 6 of the club.
  • the trailing edge of the groove can be defined as the side of the groove closest to the bottom sole portion 8 of the club.
  • Figure 4 provides an example of the method applied as typified by the edge of the groove formed between second surface 7 and club face 16 , form a leading edge of the groove, which is greater than 90 degrees, more preferably form angles of 110 to 150 degrees to club face 16 .
  • This does not apply to what at first look could be described as the acute edge formed by chamfered edge 60 , which because of the angling of the club face, this trailing edge need not be limited to an obtuse angle, though obtuse angles are preferred for both sides of the groove the contacts club face 16 .
  • chamfered edge 60 is trailing edge groove side it has been chamfered so that it is effectively forms no greater than a 90-degree angle with the club face 16 .
  • the illustrative golf clubhead of one embodiment includes a blade member 2 having a toe portion 4 , a top ridge 6 , a bottom sole portion 8 and a heel portion 10 .
  • a hosel portion 12 Extending from the heel portion region of the clubhead is a hosel portion 12 adapted to receive and be retained on a shaft member (not shown).
  • the club head is provided with preferably a substantially flat surface or club face 16 , but the club face is not limited to being flat, having therein a center of percussion 18 , which is the spot ideally adapted to engage a golf ball at impact, and a rear surface 20 having a perimeter 22 defining an optional cavity 24 .
  • Cut into the club face 16 are a series of grooves 14 that are arranged in parallel and are uniformly spaced in relation to one another in accordance with one embodiment of the invention; however, in a different embodiment, said grooves can be spaced non-uniformly and/or can be arranged in a non-parallel fashion.
  • the number of grooves 14 can vary, but a typical number across the club face ranges from at least one to about twenty grooves.
  • the club face Before a groove is cut into the club face, the club face may be preferably milled perfectly flat, thereby removing any and all variations in face flatness. In addition, the milled club face may be finished or treated. Once the work on the club face is completed, each individual groove is typically engraved into the club face one at time but they may be molded or stamped depending on the process of manufacture chosen.
  • the individual grooves in each configuration may be spaced 0.05 to 0.2 inch apart, more preferably 0.1 to 0.15 inches, most preferably about 0.105 inch apart.
  • FIG. 3 illustrates a conventional square groove configuration with horizontal score lines.
  • the modified groove may be combined with the conventional grooves to tailor the reaction of the golf ball to the point of contact on the club face (not shown).
  • An example would be to surround a central grouping of modified grooves with conventional grooves or the opposite depending on the characteristics that you desire to tailor to the club face.
  • FIG. 4 shows an angled slot groove configuration, more particularly, an "A" version of said angled slot groove configuration in accordance with one embodiment of the present invention.
  • said "A" version of said angled slot groove configuration comprises at least one groove or a series of grooves, each formed by a first surface 3 connected to the club face 16 via a chamfered edge 60 ; a second surface 7 extending between a third surface 5 and the club face 16 wherein third surface 5 connects said first surface 3 to said second surface 7 .
  • Said third surface 5 can be either parallel or non-parallel with respect to the club face 16 .
  • the angle of the first surface 3 and the second surface 7 with respect to the club face 16 is effective for improving backspin (i.e., increasing backspin) on a golf ball in the ranges of: 0 to 180 degrees, 20 to 160 degrees, 40 to 140 degrees, 60 to 120 degrees, 80 to 100 degrees 0 to 90 degrees and 90 to 180 degrees. Most particularly, the effective range is 20 to 50 degrees, the most preferable angle therein being about 35 degrees. Said first surface 3 and said second surface 7 are not both parallel to each other and perpendicular to the club face 16 simultaneously.
  • each individual groove with respect to the club face 16 i.e., the width of the groove or distance between surface 3 and surface 7 at the club face 16
  • the opening of each individual groove with respect to the club face 16 is in the range of 0.015 to 0.055 inch; most particularly said distance is about 0.035 inch.
  • the outer edges of surfaces 3 and 7 interface to form a gripping edge which imparts spin on the ball. As discussed above this can be combined with conventional grooves or with other modified grooves to tailor the reaction of the ball according to its contact point with the face of the club.
  • each individual groove measured from the club face can range from 0.01 to 0.03 inch, with a preferable depth of 0.02 inch.
  • FIG. 5 shows a sectional view of a Y-shaped slot groove configuration, more particularly, a "B" version of said Y-shaped slot groove configuration in accordance with one embodiment of the present invention.
  • Said groove configuration is made up of at least one Y-shaped slot or a series of y-shaped slots wherein each Y-shaped slot is formed by three surfaces 9 , 11 and 13 .
  • First surface 9 and second surface 13 are connected to the club face 16 via a first chamfered edge 62 and a second chamfered edge 64 respectively.
  • First surface 9 and second surface 13 are parallel to each other and perpendicular to the club face simultaneously.
  • a third surface 11 extends between the first surface 9 and the second surface 13 and can be either parallel or non-parallel with respect to the club face 16 .
  • Surfaces 9 , 13 in combination with chamfered edges 62 , 64 and club face 16 form a gripping edge that imparts spin on the ball when contact is made.
  • the location where said first chamfered edge 62 connects to said first surface 9 and where said second chamfered edge 64 connects to said second surface 13 is effective for improving backspin on a golf ball (i.e., increasing backspin) in the ranges of 0.00125 to 0.00875 inch and 0.0025 to 0.0075 inch below the club face 16 .
  • the effective range is 0.00375 to 0.00625 inch below the club face 16 , the most preferable location being about 0.005 inch below the club face 16 .
  • Surfaces 9,11,13 form a rectangular portion of the Y-shaped slot.
  • Said rectangular portion is about 0.01 to 0.026 inch wide, most particularly being about 0.018 inch wide.
  • the width of the Y-shaped slot measured at the club face 16 ranges from 0.015 to 0.055 inch, most particularly, said width is 0.035 inch.
  • the maximum depth of each groove measured from the club face 16 can range from 0.01 inch to 0.03 inch, with a preferable depth of 0.02 inch.
  • One method of determining the configuration of the Y-shaped slot is by the depth of the groove.
  • a good method to determine the shape of Y. groove is where said first chamfered edge 62 connects to said first surface 9 and where said second chamfered edge 64 connects to said second surface 13 , by calculating it to be 10-40% of the depth of the bottom of the groove, more preferably 20-30% of the depth with 25% being a typical selection.
  • This configuration can be cut using a custom ground end mill or stamped or molded depending on the process used.
  • This groove may be used alone or combined with other grooves to tailor the performance of the club.
  • FIG. 6 shows a sectional view of a Y-shaped slot groove configuration, more particularly, a "C" version of said Y-shaped slot groove configuration in accordance with one embodiment of the present invention.
  • Said Y-shaped slot configuration is made up of at least one Y-shaped slot or a series of Y-shaped slots each formed by three surfaces 17 , 19 and 21 .
  • First surface 17 and second surface 21 are connected to the club face 16 via a first chamfered edge 66 and a second chamfered edge 68 respectively thereby forming a gripping surface.
  • First surface 17 and second surface 21 are parallel to each other and perpendicular to the club face simultaneously.
  • a third surface 19 extends between the first surface 17 and the second surface 21 and can be either parallel or non-parallel with respect to the club face 16 .
  • the location where said first chamfered edge 66 connects to said first surface 17 and where said second chamfered edge 68 connects to said second surface 21 is effective for improving backspin on a golf ball (i.e., increasing backspin) in the ranges of 0.005 to 0.015 inch, 0.00625 to 0.01375 inch and 0.0075 to 0.0125 inch below the club face 16 .
  • the effective range is 0.00875 to 0.01125 inch below the club face 16 , the most preferable location being about 0.01 inch below the club face 16.
  • Surfaces 17,19,21 form a rectangular portion of the Y-shaped slot.
  • Said rectangular portion is about 0.01 to 0.026 wide, most particularly being about 0.018 inch wide.
  • the width of the Y-shaped slot measured at the club face 16 ranges from 0.015 to 0.055 inch, most particularly, said width is 0.035 inch.
  • the maximum depth of each groove measured from the club face 16 can range from 0.01 inch to 0.03 inch, with a preferable depth of 0.02 inch.
  • One method for determining the configuration of the groove is to define where the first chamfered edge 66 connects to said first surface 17 and where said second chamfered edge 68 connects to said second surface 21 as a percentage of the depth of the groove.
  • This groove is ideally from 40-70% of the depth, more preferably 45-55%, with a depth of 50% being one common embodiment.
  • This configuration can be cut using a custom ground end mill, stamped or molded depending on the process chosen. Additionally the grooves may be used alone or in combination with other modified grooves or conventional grooves.
  • FIG. 7 shows yet another groove configuration, wherein said configuration comprises a portion of circle or arc shaped groove(circular portion). More specifically, FIG. 7 illustrates a "D" version of said groove configuration, which displays a circle, wherein at least one or a series of grooves formed in the club face 16 comprises a portion of a circle or ellipsoid or arc 25 . A gripping edge or surface is formed where the opposite ends of said circular portion connect to the club face 16 .
  • the radius of the arc may be modified at any portion between its maximum and minimum range throughout the groove modifying a circle into an ellipse or an arc.
  • An effective radius of said circular or arc portion 25 for improving backspin on a golf ball ranges from 0.008 to 0.026 inch. More particularly, the effective range is 0.013 to 0.021 inch, the most preferable radius being 0.017 inch. Additionally, the maximum depth of said portion of a circle or arc 25 measured from the club face 16 ranges from 0.01 to 0.03 inch, with a preferred maximum of 0.02 inch. Furthermore, the maximum width of said portion of a circle/arc groove measured at the club face ranges from 0.015 inch to 0.055 inch, with a preferable maximum width of 0.035 inch. This configuration can be cut using a custom ground ball nose.
  • FIGS. 8-10 illustrate yet another groove configuration, an angled slot with double chamfer configuration, and more particularly, an "E" version of said angled slot with double chamfer configuration for all golf clubs including irons, drivers, woods and particularly wedges (48-64 degrees) according to one embodiment of the present invention.
  • Said configuration comprises at least one angular slot or a series of angular slots cut into the club face 16 .
  • Each angular slot is formed by three surfaces, first surface 27 , second surface 31 and third surface 29 .
  • Said first surface 27 and said second surface 31 connect to the club face 16 via chamfered edges 33 and 35 respectively.
  • Third surface 29 runs either parallel or non-parallel to the club face 16 and connects to surface 31 at a rounded corner 32 having an effective radius between 0.0025 and 0.0075 inch with a preferred radius of 0.005 inch.
  • the outer edges of surfaces 27 and 31 in conjunction with chamfered edges 33 and 35 interface to form a gripping edge which imparts backspin on the ball.
  • the angle of the first chamfered edge 33 with respect to the first surface 27 is effective for improving the backspin (i.e., increasing backspin) imparted to a golf ball in the ranges of: 0 to 180 degrees, 20 to 160 degrees, 40 to 140 degrees, 60 to 120 degrees, 80 to 100 degrees, 0 to 90 degrees and 90 to 180 degrees for all golf clubs including irons, drivers, woods and wedges. More particularly, the effective range is 10 to 30 degrees. Even more particularly, the effective ranges are 19-21 degrees, the most preferable angle therein being about 20 degrees to maximize the performance of a 52-degree wedge (FIG. 8), 16-18 degrees, the most preferable angle therein being about 17 degrees to maximize the performance of a 56-degree wedge (FIG. 9), and 14-16 degrees, the most preferable angle therein being about 15 degrees to maximize the performance of a 60-degree wedge (FIG. 10).
  • the angle of the second chamfered edge 35 with respect to the second surface 31 is effective for improving the backspin (i.e., increasing backspin) imparted to a golf ball in the ranges of: 0 to 180 degrees, 20 to 160 degrees, 40 to 140 degrees, 60 to 120 degrees, 80 to 100 degrees, 0 to 90 degrees and 90 to 180 degrees. More particularly, the effective range is 20 to 110 degrees for all golf clubs including irons, drivers, woods and wedges. Even more particularly, the effective range is 77-87 degrees, the most preferable angle therein being about 82 degrees to maximize the performance of a 52-degree wedge (FIG. 8), 60-70 degrees, the most preferable angle therein being about 65 degrees to maximize the performance of a 56-degree wedge (FIG. 9), and 40-50 degrees, the most preferable angle therein being about 45 degrees to maximize the performance of a 60-degree wedge (FIG. 10).
  • Said first surface 27 and said second surface 31 are not both parallel to each other and perpendicular to the club face 16 simultaneously. Additionally, the distance between surfaces 27 and 31 is between 0.005 and 0.015 inch with a preferred distance of 0.01 inch, while the distance between the chamfered edges 33 and 35 at the club face 16 (i.e., the opening or width of the angled slot) ranges between 0.015 and 0.055 inch; most particularly said distance is at a maximum of 0.035 inch. Furthermore, the depth of each grove in said "E” configuration can range from 0.01 inch to 0.03 inch, with a preferable depth of 0.02 inch. Said "E” configuration can be cut using a custom ground woodruff cutter.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)
EP01130385A 2000-12-27 2001-12-20 Rillenkonfiguration eines Golfschlägers Withdrawn EP1234602A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25844400P 2000-12-27 2000-12-27
US258444P 2000-12-27

Publications (2)

Publication Number Publication Date
EP1234602A2 true EP1234602A2 (de) 2002-08-28
EP1234602A3 EP1234602A3 (de) 2003-12-10

Family

ID=22980568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01130385A Withdrawn EP1234602A3 (de) 2000-12-27 2001-12-20 Rillenkonfiguration eines Golfschlägers

Country Status (3)

Country Link
EP (1) EP1234602A3 (de)
JP (1) JP2002224250A (de)
CA (1) CA2364776A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457745A (en) * 2008-02-20 2009-08-26 Karsten Mfg Corp Golf club grooves having uneven edges
US8602911B2 (en) 2008-02-20 2013-12-10 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
US8814720B2 (en) 2008-02-20 2014-08-26 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7273422B2 (en) * 2003-12-12 2007-09-25 Acushnet Company Spin milled grooves for a golf club
US7846039B2 (en) 2003-08-13 2010-12-07 Acushnet Company Golf club head
US7862450B2 (en) 2003-12-12 2011-01-04 Acushnet Company Golf club head groove configuration
JP5226196B2 (ja) * 2006-08-07 2013-07-03 ブリヂストンスポーツ株式会社 ゴルフクラブヘッド
US7798917B2 (en) 2006-10-31 2010-09-21 Bridgestone Sports Co., Ltd. Golf club head
JP4917415B2 (ja) 2006-11-28 2012-04-18 ブリヂストンスポーツ株式会社 ゴルフクラブヘッド
JP4917414B2 (ja) 2006-11-28 2012-04-18 ブリヂストンスポーツ株式会社 ゴルフクラブヘッド
JP4933232B2 (ja) 2006-11-30 2012-05-16 ブリヂストンスポーツ株式会社 ゴルフクラブヘッド
US7815521B2 (en) * 2006-12-01 2010-10-19 Bridgestone Sports, Co., Ltd. Golf club head
US7691007B2 (en) 2007-01-04 2010-04-06 Bridgestone Sports Co., Ltd. Golf club head
JP2008206984A (ja) * 2007-02-27 2008-09-11 Acushnet Co ゴルフクラブヘッドの溝の形態
JP5380634B2 (ja) * 2007-07-24 2014-01-08 ブリヂストンスポーツ株式会社 ゴルフクラブヘッドの製造方法及びゴルフクラブヘッド
US7905798B2 (en) * 2008-02-15 2011-03-15 Karsten Manufacturing Corporation Golf club head and method of manufacturing
JP4995228B2 (ja) * 2009-05-13 2012-08-08 ダンロップスポーツ株式会社 ゴルフクラブヘッドの製造方法
JP4993629B2 (ja) * 2009-05-28 2012-08-08 ダンロップスポーツ株式会社 ゴルフクラブヘッド
JP4993630B2 (ja) * 2009-06-03 2012-08-08 ダンロップスポーツ株式会社 ゴルフクラブヘッド
JP4993631B2 (ja) * 2009-06-10 2012-08-08 ダンロップスポーツ株式会社 ゴルフクラブヘッド
JP5866969B2 (ja) 2011-10-27 2016-02-24 ブリヂストンスポーツ株式会社 ゴルフクラブヘッド及びその製造方法
JP5981208B2 (ja) 2012-04-24 2016-08-31 ブリヂストンスポーツ株式会社 形成方法及びゴルフクラブヘッド

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754971A (en) * 1985-07-22 1988-07-05 Maruman Golf Co., Ltd. Golf club set
US4858929A (en) * 1987-06-24 1989-08-22 Macgregor Golf Company Golf irons
JPH02228981A (ja) * 1989-03-01 1990-09-11 Shintomi Golf:Kk アイアンクラブセット
EP0742033A1 (de) * 1995-05-09 1996-11-13 Acushnet Company Golfschläger mit Rillenkonfiguration
US5688186A (en) * 1996-04-02 1997-11-18 Michaels; Richard A. Golf club face
US5709616A (en) * 1996-05-31 1998-01-20 Rife; Guerin D. Groove configuration for a putter type golf club head
US5766087A (en) * 1996-01-23 1998-06-16 Sumitomo Rubber Industries, Ltd. Set of golf clubs
WO2001097924A1 (en) * 2000-06-23 2001-12-27 Norman Matheson Lindsay Golf-club heads

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754971A (en) * 1985-07-22 1988-07-05 Maruman Golf Co., Ltd. Golf club set
US4858929A (en) * 1987-06-24 1989-08-22 Macgregor Golf Company Golf irons
JPH02228981A (ja) * 1989-03-01 1990-09-11 Shintomi Golf:Kk アイアンクラブセット
EP0742033A1 (de) * 1995-05-09 1996-11-13 Acushnet Company Golfschläger mit Rillenkonfiguration
US5766087A (en) * 1996-01-23 1998-06-16 Sumitomo Rubber Industries, Ltd. Set of golf clubs
US5688186A (en) * 1996-04-02 1997-11-18 Michaels; Richard A. Golf club face
US5709616A (en) * 1996-05-31 1998-01-20 Rife; Guerin D. Groove configuration for a putter type golf club head
WO2001097924A1 (en) * 2000-06-23 2001-12-27 Norman Matheson Lindsay Golf-club heads

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 543 (C-0783), 30 November 1990 (1990-11-30) & JP 02 228981 A (SHINTOMI GOLF:KK), 11 September 1990 (1990-09-11) *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457745A (en) * 2008-02-20 2009-08-26 Karsten Mfg Corp Golf club grooves having uneven edges
US7780548B2 (en) 2008-02-20 2010-08-24 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
GB2486585A (en) * 2008-02-20 2012-06-20 Karsten Mfg Corp Golf club strike face grooves having edge projections
GB2486574A (en) * 2008-02-20 2012-06-20 Karsten Mfg Corp Golf club strike face grooves having edge projections
GB2457745B (en) * 2008-02-20 2012-08-22 Karsten Mfg Corp Golf club heads with grooves and methods of manufacture
GB2486585B (en) * 2008-02-20 2012-11-14 Karsten Mfg Corp Golf club heads with grooves and methods of manufacture
GB2486574B (en) * 2008-02-20 2012-11-14 Karsten Mfg Corp Golf club heads with grooves and methods of manufacture
US8602911B2 (en) 2008-02-20 2013-12-10 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
US8814720B2 (en) 2008-02-20 2014-08-26 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
US9597557B2 (en) 2008-02-20 2017-03-21 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
US10035052B2 (en) 2008-02-20 2018-07-31 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
US10376753B2 (en) 2008-02-20 2019-08-13 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture
US10716975B2 (en) 2008-02-20 2020-07-21 Karsten Manufacturing Corporation Golf club heads with grooves and methods of manufacture

Also Published As

Publication number Publication date
CA2364776A1 (en) 2002-06-27
JP2002224250A (ja) 2002-08-13
EP1234602A3 (de) 2003-12-10

Similar Documents

Publication Publication Date Title
US6981923B2 (en) High spin golf club groove configuration
EP1234602A2 (de) Rillenkonfiguration eines Golfschlägers
US7285057B2 (en) Variable scoreline golf club groove configuration
US5709616A (en) Groove configuration for a putter type golf club head
US9943735B2 (en) Putter face with variable sized ball contact land areas
US5511786A (en) Wood type aerodynamic golf club head having an air foil member on the upper surface
US9427632B2 (en) Golf club heads with enlarged grooves
US4854580A (en) Golf club
US20050009623A1 (en) Spin controlling golf club impact faceplate
US20040180731A1 (en) Golf club striking face with varied thickness distribution
JPH0639036U (ja) ゴルフクラブヘッド
JPH0824381A (ja) バックキャビティにアンダーカット凹部を設けて周辺重量化したパターヘッド
JPH06233840A (ja) アイアンゴルフクラブおよびそのセット
JPH07185047A (ja) ゴルフクラブのセット
GB2457745A (en) Golf club grooves having uneven edges
US20100279789A1 (en) Crosscut wedge golf club
US7850538B1 (en) Golf club having two angularly divergent impact faces
KR20000071285A (ko) 아이언 타입 골프 클럽 헤드
US5377983A (en) Four-way diamond-cut sole for golf club head
US20030134687A1 (en) Multi-use golf club head
KR200427084Y1 (ko) 골프 퍼터
US6699142B2 (en) Golf putter head
JPH07299164A (ja) ウェッジショット用アイアンクラブヘッド
JP2002306648A (ja) ゴルフ用パター
JP2003275345A (ja) ウッドゴルフクラブヘッドおよびウッドゴルフクラブ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021218

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20050411

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DUNLOP SPORTS GROUP AMERICAS INC.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: TAYLOR MADE GOLF COMPANY, INC.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060419