US20080051213A1 - Acoustically tunable golf club head - Google Patents
Acoustically tunable golf club head Download PDFInfo
- Publication number
- US20080051213A1 US20080051213A1 US11/390,821 US39082106A US2008051213A1 US 20080051213 A1 US20080051213 A1 US 20080051213A1 US 39082106 A US39082106 A US 39082106A US 2008051213 A1 US2008051213 A1 US 2008051213A1
- Authority
- US
- United States
- Prior art keywords
- face member
- end wall
- cantilever
- club head
- 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.)
- Abandoned
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Classifications
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- 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
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- 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
- A63B53/0433—Heads with special sole configurations
-
- 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
- A63B53/0487—Heads for putters
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/52—Details or accessories of golf clubs, bats, rackets or the like with slits
-
- 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
- A63B2053/0491—Heads with added weights, e.g. changeable, replaceable
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
- A63B2071/0625—Emitting sound, noise or music
- A63B2071/0633—Emitting sound, noise or music without electronic means
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- 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
- A63B53/06—Heads adjustable
- A63B53/065—Heads adjustable for putters
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/50—Details or accessories of golf clubs, bats, rackets or the like with through-holes
Definitions
- This invention relates generally to golf clubs and, in particular, to an acoustically tunable golf club head.
- golf involves utilization of a golfer's senses of sight, sound and touch. This is particularly true in the case of golf putter design.
- a well designed golf putter will provide a pleasing audible sound as well as pleasant tactile feedback when a golf ball is properly struck.
- U.S. Pat. No. 5,803,825 to Hamilton discloses a golf putter head incorporating a resonating cavity that provides acoustic indicia of an optimum contact between the putter head and golf ball.
- the putter comprises a club head body with a recess in the face.
- a striking plate having a corresponding recess is attached to the club head body to form a fully-enclosed cavity. According to the patent, the cavity will resonate with greater energy when the ball is properly struck than when the ball is mis-hit.
- U.S. Pat. No. 5,908,356 to Nagamoto discloses a golf club head having a metallic acoustic adjustment member installed on the inside surface of the sole of the club.
- the insert is not in contact with the either the face of the club or the rear portion of the shell.
- the acoustic adjustment member suppresses the vibration of the sole of the club but not the face, crown or shell which, according to the patent results in a superior ball-striking sound.
- U.S. Pat. No. 6,059,669 to Pearce discloses a golf club head including a plurality of cavities that open to the upper surface of the crown. Inserts are placed within the cavities for aerodynamic, acoustic, and other purposes.
- the present invention provides a golf club head including a body having a front face, a heel end, a toe end, a first end wall, a second end wall opposite the first end wall, and a back wall extending between the first and second end walls.
- the front face includes a cantilever face member having a front surface for impacting a golf ball and a back surface facing the back wall.
- the cantilever face member has a fixed end and a free end. The fixed end of the cantilever face member is attached to the first end wall, and the free end of the cantilever face member is adjacent but spaced from the second end wall.
- the front face, the first and second end walls, and the back wall together define a resonating cavity behind the cantilever face member so that, when the front surface of the cantilever face member impacts a golf ball, the cantilever face member oscillates in a bending mode and generates an acoustic response in the resonating cavity.
- the free end of the cantilever face member includes an end surface facing the second side wall, and the second end wall has an inner surface facing the first side wall.
- the end surface on the free end of the cantilever face member and the inner surface of the second side wall are spaced apart to define a gap therebetween.
- the second end wall comprises an end surface facing the cantilever face member, and the end surface of the second end wall is spaced from the back surface of the cantilever face member to define a gap therebetween.
- the golf club head may also include first and second tines in the resonating cavity.
- the first tine is a cantilevered member disposed substantially parallel to the cantilever face member extending from the first end wall toward the second end wall.
- the second tine is a cantilevered member disposed substantially parallel to the cantilever face member extending from the second end wall toward the first end wall.
- FIG. 1 is a perspective view of a golf club head according to one embodiment of the present invention
- FIG. 2 is a top view of the golf club head shown in FIG. 1 ;
- FIG. 3 is a bottom view of the golf club head shown in FIG. 1 ;
- FIG. 4 is a top view of a golf club head according to an alternative embodiment of the present invention.
- FIG. 5 is a bottom view of the golf club head shown in FIG. 4 ;
- FIG. 6 is a perspective view of an optional part used in the golf club heads shown in FIGS. 1 and 4 ;
- FIG. 7A-7C are side views of different configurations of tines which may be used in the golf club heads of FIGS. 1 and 4 .
- a golf club head 10 preferably a golf putter head, comprises a body 12 and a hosel 14 with a boss 16 counterbored for receiving one end of a golf club shaft (not shown).
- the body 12 has a front face 18 , a heel end 20 , a toe end 22 , a first end wall 32 , a second end wall 34 and a back wall 30 .
- the front face 18 includes a cantilever face member 24 having a fixed end 26 that is attached to the first end wall 32 and a free end 28 that is adjacent but spaced from the second end wall 34 .
- the cantilever face member 24 has a front surface 24 a for impacting a golf ball and a back surface 24 b facing the back wall 30 .
- body 12 including cantilever face member 24 is cast or machined from a single piece of metallic material such as stainless steel or bronze.
- the free end 28 of the cantilever face member 24 has an end surface 28 a that faces the second end wall 34
- the second end wall 34 has an inner surface 34 a that faces the first side wall 32 .
- the end surface 28 a on the free end 28 of the cantilever face member 24 is spaced from the inner surface 34 a of the second end wall 34 to define a gap 29 therebetween.
- First end wall 32 and second end wall 34 each include a plurality of T-slots 38 that are open toward the top 36 of the body 12 .
- One or more thin cantilevered members or tines 40 a - f are pressed into the T-slots 38 so that a root portion 42 of each tine 40 a - f has a close fit with a corresponding T-slot 38 .
- cantilever face member 24 oscillates in a bending mode and generates an acoustic response in the resonating cavity 44 .
- the cantilever face member 24 thus acts as a primary resonator to cause vibrations within the resonating cavity 44 .
- the resonance within cavity 44 causes sympathetic resonances in the tines 40 a - f .
- the natural frequency of tines 40 a - f is between 20 Hz and 40,000 Hz.
- the oscillations of tines 40 a - f together with the oscillation of cantilever face member 24 produce an audible sound which will be different depending on the primary natural frequency of each of the tines 40 a - f.
- the front face 18 includes a cantilever face member 56 that extends to the toe end 22 of the body 12 .
- the second end wall 34 has an end surface 34 b that faces, but is spaced from, the back surface 56 b of the cantilever face member 56 to define a gap 58 therebetween.
- the gap 58 will not be visible in a front view of the club head 10 .
- tines 40 a - f are pressed into corresponding T-slots 38 formed in the end walls 32 , 34 and may be removed, adjusted and/or replaced with tines of different size and shape to provide the desire acoustic response.
- a fret member 60 may be inserted so as to contact one or more of the tines 40 a - f .
- Fret member 60 comprises a flange 62 with one or more web portions 64 sized to create an interference fit between adjacent tines 40 a - f and/or between tines 40 a - f and back wall 30 of body 12 .
- fret member 60 reduces the free length of tines 40 a - f and/or changes their bending mode from primary to secondary or higher frequencies.
- Use of the fret member 60 in conjunction with tines 40 a - f permits even further variation in resonant frequencies than altering the size and shape of tines 40 a - f alone.
- tines 40 a - f may be in other configurations such as a tapered beam 40 a shown in FIG. 7A , a tuning fork beam 40 b shown in FIG. 7B or a racquet shaped beam 40 c shown in FIG. 7C .
- the cavity 44 is closed off at the bottom 37 of the body 12 by a plate or sole 46 .
- cavity 44 is not fully closed off but, instead, is partially closed off by a plate or sole 50 that includes apertures 52 and 54 which assist in amplification of the resonance in the cavity 44 .
Abstract
A golf club head includes a cantilever face member having a front surface, a fixed end and a free end. A resonating cavity is defined behind the cantilever face member so that, when the front surface of the cantilever face member impacts a golf ball , the cantilever face member oscillates in a bending mode and generates an acoustic response in the resonating cavity. One or more tines may be disposed in the resonating cavity to alter the acoustic response. The tines may be selected from a plurality of tines having different length dimensions and frequencies.
Description
- This invention relates generally to golf clubs and, in particular, to an acoustically tunable golf club head.
- It is well known that golf involves utilization of a golfer's senses of sight, sound and touch. This is particularly true in the case of golf putter design. A well designed golf putter will provide a pleasing audible sound as well as pleasant tactile feedback when a golf ball is properly struck.
- U.S. Pat. No. 5,803,825 to Hamilton discloses a golf putter head incorporating a resonating cavity that provides acoustic indicia of an optimum contact between the putter head and golf ball. The putter comprises a club head body with a recess in the face. A striking plate having a corresponding recess is attached to the club head body to form a fully-enclosed cavity. According to the patent, the cavity will resonate with greater energy when the ball is properly struck than when the ball is mis-hit.
- U.S. Pat. No. 5,908,356 to Nagamoto discloses a golf club head having a metallic acoustic adjustment member installed on the inside surface of the sole of the club. The insert is not in contact with the either the face of the club or the rear portion of the shell. The acoustic adjustment member suppresses the vibration of the sole of the club but not the face, crown or shell which, according to the patent results in a superior ball-striking sound.
- U.S. Pat. No. 6,059,669 to Pearce discloses a golf club head including a plurality of cavities that open to the upper surface of the crown. Inserts are placed within the cavities for aerodynamic, acoustic, and other purposes.
- The present invention provides a golf club head including a body having a front face, a heel end, a toe end, a first end wall, a second end wall opposite the first end wall, and a back wall extending between the first and second end walls. The front face includes a cantilever face member having a front surface for impacting a golf ball and a back surface facing the back wall. The cantilever face member has a fixed end and a free end. The fixed end of the cantilever face member is attached to the first end wall, and the free end of the cantilever face member is adjacent but spaced from the second end wall. The front face, the first and second end walls, and the back wall together define a resonating cavity behind the cantilever face member so that, when the front surface of the cantilever face member impacts a golf ball, the cantilever face member oscillates in a bending mode and generates an acoustic response in the resonating cavity.
- In one embodiment of the golf club head, the free end of the cantilever face member includes an end surface facing the second side wall, and the second end wall has an inner surface facing the first side wall. The end surface on the free end of the cantilever face member and the inner surface of the second side wall are spaced apart to define a gap therebetween. In alternative embodiment of the golf club head, the second end wall comprises an end surface facing the cantilever face member, and the end surface of the second end wall is spaced from the back surface of the cantilever face member to define a gap therebetween.
- The golf club head may also include first and second tines in the resonating cavity. The first tine is a cantilevered member disposed substantially parallel to the cantilever face member extending from the first end wall toward the second end wall. The second tine is a cantilevered member disposed substantially parallel to the cantilever face member extending from the second end wall toward the first end wall.
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FIG. 1 is a perspective view of a golf club head according to one embodiment of the present invention; -
FIG. 2 is a top view of the golf club head shown inFIG. 1 ; -
FIG. 3 is a bottom view of the golf club head shown inFIG. 1 ; -
FIG. 4 is a top view of a golf club head according to an alternative embodiment of the present invention; -
FIG. 5 is a bottom view of the golf club head shown inFIG. 4 ; -
FIG. 6 is a perspective view of an optional part used in the golf club heads shown inFIGS. 1 and 4 ; and -
FIG. 7A-7C are side views of different configurations of tines which may be used in the golf club heads ofFIGS. 1 and 4 . - With reference to
FIGS. 1 and 2 , agolf club head 10, preferably a golf putter head, comprises abody 12 and ahosel 14 with aboss 16 counterbored for receiving one end of a golf club shaft (not shown). Thebody 12 has afront face 18, aheel end 20, atoe end 22, afirst end wall 32, asecond end wall 34 and aback wall 30. Thefront face 18 includes acantilever face member 24 having a fixedend 26 that is attached to thefirst end wall 32 and afree end 28 that is adjacent but spaced from thesecond end wall 34. Thecantilever face member 24 has afront surface 24 a for impacting a golf ball and aback surface 24 b facing theback wall 30. Preferably,body 12 includingcantilever face member 24 is cast or machined from a single piece of metallic material such as stainless steel or bronze. - In the embodiment shown in
FIGS. 1 and 2 , thefree end 28 of thecantilever face member 24 has an end surface 28 a that faces thesecond end wall 34, and thesecond end wall 34 has aninner surface 34 a that faces thefirst side wall 32. The end surface 28 a on thefree end 28 of thecantilever face member 24 is spaced from theinner surface 34 a of thesecond end wall 34 to define agap 29 therebetween. - The
front face 18, the first andsecond end walls back wall 30 together define aresonating cavity 44 behind thecantilever face member 24.First end wall 32 andsecond end wall 34 each include a plurality of T-slots 38 that are open toward thetop 36 of thebody 12. One or more thin cantilevered members or tines 40 a-f are pressed into the T-slots 38 so that aroot portion 42 of each tine 40 a-f has a close fit with a corresponding T-slot 38. - When a golf ball is struck on the
front surface 24 a of thecantilever face member 24,cantilever face member 24 oscillates in a bending mode and generates an acoustic response in theresonating cavity 44. Thecantilever face member 24 thus acts as a primary resonator to cause vibrations within theresonating cavity 44. The resonance withincavity 44 causes sympathetic resonances in the tines 40 a-f. Preferably, the natural frequency of tines 40 a-f is between 20 Hz and 40,000 Hz. The oscillations of tines 40 a-f together with the oscillation ofcantilever face member 24 produce an audible sound which will be different depending on the primary natural frequency of each of the tines 40 a-f. - In the alternative embodiment of
FIG. 4 , thefront face 18 includes acantilever face member 56 that extends to thetoe end 22 of thebody 12. Thesecond end wall 34 has anend surface 34 b that faces, but is spaced from, theback surface 56 b of thecantilever face member 56 to define agap 58 therebetween. Thegap 58 will not be visible in a front view of theclub head 10. As in the embodiment ofFIG. 2 , tines 40 a-f are pressed into corresponding T-slots 38 formed in theend walls - Additionally, a fret member 60 (shown also in
FIG. 6 ) may be inserted so as to contact one or more of the tines 40 a-f. Fretmember 60 comprises aflange 62 with one ormore web portions 64 sized to create an interference fit between adjacent tines 40 a-f and/or between tines 40 a-f andback wall 30 ofbody 12. Similar to the operation of a fret on a guitar string,fret member 60 reduces the free length of tines 40 a-f and/or changes their bending mode from primary to secondary or higher frequencies. Use of thefret member 60 in conjunction with tines 40 a-f permits even further variation in resonant frequencies than altering the size and shape of tines 40 a-f alone. - As shown in
FIGS. 7A-7C , tines 40 a-f may be in other configurations such as a tapered beam 40 a shown inFIG. 7A , atuning fork beam 40 b shown inFIG. 7B or a racquet shapedbeam 40 c shown inFIG. 7C . - In the embodiment of
FIG. 1 , thecavity 44 is closed off at the bottom 37 of thebody 12 by a plate or sole 46. In the alternative embodiment shown inFIG. 4 ,cavity 44 is not fully closed off but, instead, is partially closed off by a plate or sole 50 that includesapertures cavity 44.
Claims (18)
1. A golf club head comprising:
a body having a front face, a heel end, a toe end, a first end wall, a second end wall opposite said first end wall, and a back wall extending between said first and second end walls;
said front face including a cantilever face member having a front surface for impacting a golf ball and a back surface facing said back wall;
said cantilever face member having a fixed end and a free end;
said fixed end of said cantilever face member being attached to said first end wall;
said free end of said cantilever face member being adjacent but spaced from said second end wall; and
said front face, said first and second end walls, and said back wall together defining a resonating cavity behind said cantilever face member so that, when said front surface of said cantilever face member impacts a golf ball, said cantilever face member oscillates in a bending mode and generates an acoustic response in said resonating cavity.
2. The golf club head of claim 1 , wherein:
said free end of said cantilever face member includes an end surface facing said second side wall;
said second end wall has an inner surface facing said first side wall; and
said end surface on said free end of said cantilever face member and said inner surface of said second side wall are spaced apart to define a gap therebetween.
3. The golf club head of claim 1 , wherein:
said second end wall comprises an end surface facing said cantilever face member; and
said end surface of said second end wall is spaced from said back surface of said cantilever face member to define a gap therebetween.
4. The golf club head of claim 1 , wherein said cantilever face member is substantially parallel to and spaced from said back wall.
5. The golf club head of claim 1 , further comprising:
at least one tine in said resonating cavity; and
said at least one tine being a cantilevered member having a length dimension, said at least one tine disposed substantially parallel to said cantilever face member and extending from said first side wall toward said second side wall
6. The golf club head of claim 5 , wherein said at least one tine is selected from a plurality of tines having different length dimensions.
7. The golf club head of claim 6 , wherein the tines of said plurality of tines have resonant frequencies between 20 Hz and 40,000 Hz.
8. The golf club head of claim 1 , further comprising:
at least one tine in said resonating cavity; and
said at least one tine being a cantilevered member having a length dimension, said at least one tine disposed substantially parallel to said cantilever beam member extending from said second end wall toward said first end wall.
9. The golf club head of claim 8 , wherein said at least one tine is selected from a plurality of tines having different length dimensions.
10. The golf club head of claim 9 , wherein the tines of said plurality of tines have resonant frequencies between 20 Hz and 40,000 Hz.
11. The golf club head of claim 1 , further comprising:
first and second tines in said resonating cavity;
said first tine being a cantilevered member disposed substantially parallel to said cantilever face member extending from said first end wall toward said second end wall; and
said second tine being a cantilevered member disposed substantially parallel to said cantilever face member extending from said second end wall toward said first end wall.
12. The golf club head of claim 11 , wherein said first and second tines are removably mounted in said body.
13. The golf club head of claim 12 , wherein said first and second tines are attached to said first and second end walls by having root portions of said first and second tines mounted in T- slots formed in said first and second end walls.
14. The golf club head of claim 11 , further comprising a fret member disposed between and contacting said first and second tines.
15. The golf club head of claim 1 , wherein said body includes a plate which at least partially closes off said cavity at its bottom.
16. The golf club head of claim 15 , wherein said plate includes apertures opening into said cavity.
17. A golf club head comprising:
a body having a front face, a heel end, a toe end, a first end wall, a second end wall opposite said first end wall, and a back wall extending between said first and second end walls;
said front face including a cantilever face member having a front surface for impacting a golf ball and a back surface facing said back wall;
said cantilever face member having a fixed end and a free end;
said fixed end of said cantilever face member being attached to said first end wall;
said free end of said cantilever face member having an end surface spaced from an inner surface of said second end wall to define a gap therebetween;
said front face, said first and second end walls, and said back wall together defining a resonating cavity behind said cantilever face member so that, when said front surface of said cantilever face member impacts a golf ball, said cantilever face member oscillates in a bending mode and generates an acoustic response in said resonating cavity;
first and second tines in said resonating cavity;
said first tine being a cantilevered member extending from said first end wall toward said second end wall; and
said second tine being a cantilevered member extending from said second end wall toward said first end wall.
18. A golf club head comprising:
a body having a front face, a heel end, a toe end, a first end wall, a second end wall opposite said first end wall, and a back wall extending between said first and second end walls;
said front face including a cantilever face member having a front surface for impacting a golf ball and a back surface facing said back wall;
said cantilever face member having a fixed end and a free end;
said fixed end of said cantilever face member being attached to said first end wall;
said back surface of said cantilever face member being spaced from an end surface of said second end wall to define a gap therebetween;
said front face, said first and second end walls, and said back wall together defining a resonating cavity behind said cantilever face member so that, when said front surface of said cantilever face member impacts a golf ball, said cantilever face member oscillates in a bending mode and generates an acoustic response in said resonating cavity;
first and second tines in said resonating cavity;
said first tine being a cantilevered member extending from said first end wall toward said second end wall; and
said second tine being a cantilevered member extending from said second end wall toward said first end wall.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/390,821 US20080051213A1 (en) | 2006-03-28 | 2006-03-28 | Acoustically tunable golf club head |
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US11/390,821 US20080051213A1 (en) | 2006-03-28 | 2006-03-28 | Acoustically tunable golf club head |
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US20080051213A1 true US20080051213A1 (en) | 2008-02-28 |
Family
ID=39197350
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US11/390,821 Abandoned US20080051213A1 (en) | 2006-03-28 | 2006-03-28 | Acoustically tunable golf club head |
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US20070258329A1 (en) * | 2005-01-27 | 2007-11-08 | Timothy Winey | Method and apparatus for the exploitation of piezoelectric and other effects in carbon-based life forms |
US20080293513A1 (en) * | 2007-05-22 | 2008-11-27 | Bitko David M | Direction and distance correcting golf putter |
US20090176591A1 (en) * | 2008-01-03 | 2009-07-09 | Kershaw Thomas R | Golf putting practice target |
US20180272199A1 (en) * | 2013-11-12 | 2018-09-27 | Taylor Made Golf Company, Inc. | Golf club |
US10130852B2 (en) | 2016-05-12 | 2018-11-20 | Karsten Manufacturing Corporation | Golf club head having a detached faceplate |
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US5551694A (en) * | 1995-06-16 | 1996-09-03 | Grim, Jr.; J. Lawrence | Sounding golf putter |
US5759115A (en) * | 1997-01-13 | 1998-06-02 | Spoerl; Frederick H. | Inertia golf club |
US20030216191A1 (en) * | 2002-05-20 | 2003-11-20 | Wright David E | Methods and apparatus for using a frequency-selectable insert in a golf club head |
US7354355B2 (en) * | 2004-10-01 | 2008-04-08 | Nike, Inc. | Golf club head or other ball striking device with modifiable feel characteristics |
-
2006
- 2006-03-28 US US11/390,821 patent/US20080051213A1/en not_active Abandoned
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US4123056A (en) * | 1976-06-26 | 1978-10-31 | Yoshiro Nakamatsu | Golfclub |
US5067715A (en) * | 1990-10-16 | 1991-11-26 | Callaway Golf Company | Hollow, metallic golf club head with dendritic structure |
US5551694A (en) * | 1995-06-16 | 1996-09-03 | Grim, Jr.; J. Lawrence | Sounding golf putter |
US5759115A (en) * | 1997-01-13 | 1998-06-02 | Spoerl; Frederick H. | Inertia golf club |
US20030216191A1 (en) * | 2002-05-20 | 2003-11-20 | Wright David E | Methods and apparatus for using a frequency-selectable insert in a golf club head |
US7354355B2 (en) * | 2004-10-01 | 2008-04-08 | Nike, Inc. | Golf club head or other ball striking device with modifiable feel characteristics |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070258329A1 (en) * | 2005-01-27 | 2007-11-08 | Timothy Winey | Method and apparatus for the exploitation of piezoelectric and other effects in carbon-based life forms |
US20080293513A1 (en) * | 2007-05-22 | 2008-11-27 | Bitko David M | Direction and distance correcting golf putter |
US7674186B2 (en) * | 2007-05-22 | 2010-03-09 | Bitko David M | Direction and distance correcting golf putter |
US20090176591A1 (en) * | 2008-01-03 | 2009-07-09 | Kershaw Thomas R | Golf putting practice target |
US20180272199A1 (en) * | 2013-11-12 | 2018-09-27 | Taylor Made Golf Company, Inc. | Golf club |
US10792543B2 (en) * | 2013-11-12 | 2020-10-06 | Taylor Made Golf Company, Inc. | Golf club |
US10130852B2 (en) | 2016-05-12 | 2018-11-20 | Karsten Manufacturing Corporation | Golf club head having a detached faceplate |
US10716976B2 (en) | 2016-05-12 | 2020-07-21 | Karsten Manufacturing Corporation | Golf club head having a detached faceplate |
US11331549B2 (en) | 2016-05-12 | 2022-05-17 | Karsten Manufacturing Corporation | Golf club head having a detached faceplate |
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Owner name: KARSTEN MANUFACTURING CORPORATION, ARIZONA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BLANKENSHIP, JEFFREY A.;MORALES, ERIC J.;REEL/FRAME:017689/0761 Effective date: 20060328 |
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