US2660436A - Indicating disk for golf club heads - Google Patents
Indicating disk for golf club heads Download PDFInfo
- Publication number
- US2660436A US2660436A US170180A US17018050A US2660436A US 2660436 A US2660436 A US 2660436A US 170180 A US170180 A US 170180A US 17018050 A US17018050 A US 17018050A US 2660436 A US2660436 A US 2660436A
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- United States
- Prior art keywords
- face
- club
- golf club
- disc
- ball
- 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.)
- Expired - Lifetime
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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
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/36—Training appliances or apparatus for special sports for golf
- A63B69/3617—Striking surfaces with impact indicating means, e.g. markers
Definitions
- This invention relates to improvements in golf clubs for permitting the location of impact between the club and a golf ball, and this invention also relates to a golf playing aid or member which can be applied to the face of the golf club for recording the location of impact between the club and ball.
- a main object of the present invention is to provide an improved golf club which is provided with a member superimposed on the face of the club for recording the location of impact between the club and a golf ball.
- Another object of the present invention is to provide a member which can be applied to the face of the golf club for recording the location of impact between the club and ball.
- Another object of the present invention is to provide a member as set out above provided with means for removably securing the member to the face of the club.
- Another object of the present invention is to provide a member as above described marked and constructed to enable the location of the impact between the club and the ball to be more readily and quickly observed.
- Another object of the present invention is to provide a member as above described, which is provided with means to enable it to be centered on the face of the golf club.
- Figure 1 is a three-dimensional view of a golf club embodying the concepts of the present invention shown in position for striking a golf ball;
- Fig. 2 is a front view in elevation of the golf club shown in Fig. 1;
- Fig. 3 is an enlarged fragmentary sectional view along lines 3-3 of Fig. 2, showing the location recording member and its manner of application to the face of the club;
- Fig. 4 shows a modified form of the location recording member
- Fig. 5 is an enlarged fragmentary section view along lines 55 of Fig. 4;
- Fig. 6 is another modified form of the invention shown in three dimensions.
- Fig. 7 is an enlarged fragmentary sectional view along lines l'! of Fig. 6.
- Figure 1 shows a golf club generally indicated at IU which happens to be a driver but could as well be an iron.
- the golf club In has a face II and on this face there is removably secured a location recording member l3 in centered relation with respect to the face H.
- Member [3 has a central aperture l4 adapted to be aligned with a centering mark or indentation It on the face of the club.
- the member l3 comprises a laminated structure including a layer 20 of colored sheet material and may conveniently take the form of colored cellophane, this layer 20 having a tacky adhesive 2
- the outer side of layer 20 has a thin coating of wax 24 provided thereon.
- the member 13 is preferably marked with radial lines 30 which assist the user of the club in more definitely locating the point of impact between the ball and the face of the club.
- the layer 20 of colored material preferably comprises three concentric rings of different colors. For instance, an outer ring of green 3
- the wax 24, on the face of layer 20 does notcompletely obscure the lines 30 or the concentric rings 3
- a modified form of the invention is disclosed in Figs. 4 and 5 wherein there is a laminated member generally indicated at 40 comprising a sheet 4
- a sheet of translucent material 45 will be applied to the outer face of the carbon sheet 4
- Figs. 5 and 6 show still another modified form of the invention which comprises a laminated structure generally indicated by the reference numeral 50 which includes an intermediate layer 5
- the entire member 50 may be removed from the face of the golf club and the outer sheet 51 removed to view the imprint made on the member 51 upon contact of the ball therewith, or, the member 50 may be left on the face of the golf club and the sheet 51 peeled off and either member 5'! replaced by another member or the marked sheet being merely pressed back into place.
- the present invention provides a member which records the location of impact between the club and the ball and which member is readily applicable to the face of a golf club and readily removable therefrom.
- the representations in the drawing have been of necessity enlarged for a clearer presentation but it will be realized that the location recording members are very thin and therefore do not interfere with the usual contact between the golf 4 ball and the face of the club. There will be unavcidably a slight shock-absorbing feature provided by the location recording member, but this will be very slight and will not in any way materially interfere with the normal effective use of a golf club.
- a golf playing aid comprising a disc of colored material, a tacky adhesive on one face of said disc for attaching the disc to the striking face of a golf club, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.
- a golf playing aid comprising a disc of colored material, a tacky adhesive on one face of said disc for attaching the disc to the striking face of a golf club, an aperture in said disc for aligning the latter with the center of said club, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.
- a golf playing aid comprising a disc of colcred material, a tacky adhesive in one face of said disc for attaching the disc to the striking face of a golf club, radial lines and concentric circles imprinted on said disc in opposed relationship to said one face for dividing the disc into areas, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
Description
Nov. 24, 1953 E. F. GROSSMAN 60,436
INDICATING DISK FOR GOLF CLUB HEAD Filed June 24, 1950 EUGENE r: GkQS'SMflM INVENTOR.
BY i yad-fwb Patented Nov. 24, 1953 UNITED STATES PATENT OFFICE INDICATING DISK FOR GOLF CLUB HEADS Eugene F. Grossman, Santa Monica, Calif.
Application June 24, 1950, Serial No. 170,180-
3 Claims.
This invention relates to improvements in golf clubs for permitting the location of impact between the club and a golf ball, and this invention also relates to a golf playing aid or member which can be applied to the face of the golf club for recording the location of impact between the club and ball.
A main object of the present invention is to provide an improved golf club which is provided with a member superimposed on the face of the club for recording the location of impact between the club and a golf ball.
Another object of the present invention is to provide a member which can be applied to the face of the golf club for recording the location of impact between the club and ball.
Another object of the present invention is to provide a member as set out above provided with means for removably securing the member to the face of the club.
Another object of the present invention is to provide a member as above described marked and constructed to enable the location of the impact between the club and the ball to be more readily and quickly observed.
Another object of the present invention is to provide a member as above described, which is provided with means to enable it to be centered on the face of the golf club.
With the foregoing and other objects in view, which will be made manifest in the following detailed description and specifically pointed out in the appended claims, reference is had to the accompanying drawing for an illustrative embodiment of the invention, wherein:
Figure 1 is a three-dimensional view of a golf club embodying the concepts of the present invention shown in position for striking a golf ball;
Fig. 2 is a front view in elevation of the golf club shown in Fig. 1;
Fig. 3 is an enlarged fragmentary sectional view along lines 3-3 of Fig. 2, showing the location recording member and its manner of application to the face of the club;
Fig. 4 shows a modified form of the location recording member;
Fig. 5 is an enlarged fragmentary section view along lines 55 of Fig. 4;
Fig. 6 is another modified form of the invention shown in three dimensions; and
Fig. 7 is an enlarged fragmentary sectional view along lines l'! of Fig. 6.
Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout, Figure 1 shows a golf club generally indicated at IU which happens to be a driver but could as well be an iron. The golf club In has a face II and on this face there is removably secured a location recording member l3 in centered relation with respect to the face H. Member [3 has a central aperture l4 adapted to be aligned with a centering mark or indentation It on the face of the club.
The member l3 comprises a laminated structure including a layer 20 of colored sheet material and may conveniently take the form of colored cellophane, this layer 20 having a tacky adhesive 2| on the back thereof to enable the member 13 to be readily secured to the face of the golf club and yet be readily removed from the face of the golf club without coating the face. The outer side of layer 20 has a thin coating of wax 24 provided thereon. When the ball 26 contacts the member I3 a portion of the wax at 28 which may be considered the point of impact, is removed by the ball thereby exposing the colored surface of layer 20. This action clearly locates with reference to the center [4 of the member l3 the point of impact of the ball 26 on the face of the club.
The member 13 is preferably marked with radial lines 30 which assist the user of the club in more definitely locating the point of impact between the ball and the face of the club. The layer 20 of colored material preferably comprises three concentric rings of different colors. For instance, an outer ring of green 3|, an intermediate ring 32 of blue, and a central ring 33 of red. The wax 24, on the face of layer 20 does notcompletely obscure the lines 30 or the concentric rings 3|; 32, and 33, the wax giving a sort of translucent but not transparent effect. It is contemplated, however, that the layer 24 could be of material to completely obscure the markings on the member I3 and also completely obscure the fact that the member 13 was made of concentric different colored rings. The only difference would be that the user of the club would not be aware of the location of the rings and lines until after he had struck the ball but this difference would be rather immaterial. By providing the concentric different colored rings and the radial lines 30, an automatic indication of the degree of accuracy is recorded by the member l3 so that after the member 13 has been struck the user of the club merely peels off the member l3 and views where the member [3 has recorded the point of impact between the club and the ball. In Fig. 3, the user would observe a blue spot on the member l3 and therefore realize that the ball had not struck the face of the club centrally thereof whereas, if a spot of red was exposed, then the user would be apprised of the fact that the ball had struck the face of the club substantially centrally thereof. It will be appreciated that between the concentric rings 3|, 32, and 33 and radial lines 30 that information is also given with regard to hooks and slices thereby enabling the user to improve his game.
A modified form of the invention is disclosed in Figs. 4 and 5 wherein there is a laminated member generally indicated at 40 comprising a sheet 4| of carbon paper having the marking face 42 facing outwardly and the rear surface thereof having tacky adhesive 44 applied thereto to enable the member 40 to be readily applied to and re moved from the face of a golf club. In this modification of the invention it is contemplated that a sheet of translucent material 45 will be applied to the outer face of the carbon sheet 4|. When the ball strikes the member 40 an imprint will be recorded by the sheet 45. The user will be able to observe the location of the imprint with regard to the center of the member 40 and therefore be ap prised of the accuracy of contact of the golf ball with the face of the club.
Figs. 5 and 6 show still another modified form of the invention which comprises a laminated structure generally indicated by the reference numeral 50 which includes an intermediate layer 5| of carbon paper or the like having the marking face 52 facing outwardly and having the rear face thereof coated with a tacky adhesive 54. There is an annular ring of adhesive 56 around the peripheral outer face of sheet 5| to enable an opaque sheet 51 to be temporarily applied thereto. In this form of the invention it is contemplated that the entire member 50 may be removed from the face of the golf club and the outer sheet 51 removed to view the imprint made on the member 51 upon contact of the ball therewith, or, the member 50 may be left on the face of the golf club and the sheet 51 peeled off and either member 5'! replaced by another member or the marked sheet being merely pressed back into place.
It will be appreciated that the present invention provides a member which records the location of impact between the club and the ball and which member is readily applicable to the face of a golf club and readily removable therefrom. The representations in the drawing have been of necessity enlarged for a clearer presentation but it will be realized that the location recording members are very thin and therefore do not interfere with the usual contact between the golf 4 ball and the face of the club. There will be unavcidably a slight shock-absorbing feature provided by the location recording member, but this will be very slight and will not in any way materially interfere with the normal effective use of a golf club.
Various changes" may be made in the details of construction without departing from the spirit and scope of the invention as defined by the appended claims.
I claim:
1. A golf playing aid comprising a disc of colored material, a tacky adhesive on one face of said disc for attaching the disc to the striking face of a golf club, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.
2. A golf playing aid comprising a disc of colored material, a tacky adhesive on one face of said disc for attaching the disc to the striking face of a golf club, an aperture in said disc for aligning the latter with the center of said club, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.
3. A golf playing aid comprising a disc of colcred material, a tacky adhesive in one face of said disc for attaching the disc to the striking face of a golf club, radial lines and concentric circles imprinted on said disc in opposed relationship to said one face for dividing the disc into areas, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.
EUGENE F. GROSSMAN.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 566,101 Sweny Aug. 18, 1896 1,464,029 Coughtrie Aug. '7, 1923 1,485,089 Musselman Feb. 26, 1924 2,030,135 Carpenter Feb. 11, 1936 2,495,679 Abrecht et al Jan. 31, 1950
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US170180A US2660436A (en) | 1950-06-24 | 1950-06-24 | Indicating disk for golf club heads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US170180A US2660436A (en) | 1950-06-24 | 1950-06-24 | Indicating disk for golf club heads |
Publications (1)
Publication Number | Publication Date |
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US2660436A true US2660436A (en) | 1953-11-24 |
Family
ID=22618884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US170180A Expired - Lifetime US2660436A (en) | 1950-06-24 | 1950-06-24 | Indicating disk for golf club heads |
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US (1) | US2660436A (en) |
Cited By (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3071379A (en) * | 1959-07-20 | 1963-01-01 | Joseph A Canfield | Device for checking golf swing |
US3081091A (en) * | 1962-03-08 | 1963-03-12 | Craig H Grow | Practice ball |
US3088321A (en) * | 1960-05-12 | 1963-05-07 | Lathrop John Douglas | Head speed indicator for golf clubs |
US3137507A (en) * | 1961-09-14 | 1964-06-16 | David A Pickler | Golf practice device and method |
US3437341A (en) * | 1967-01-04 | 1969-04-08 | Gen Standard Co | Practice golf club |
US3516675A (en) * | 1966-05-13 | 1970-06-23 | Brunswick Corp | Golf game apparatus |
US3754764A (en) * | 1972-04-27 | 1973-08-28 | F Manheck | Golf club impact marker |
US4079935A (en) * | 1973-11-09 | 1978-03-21 | Zimm-Zamm Aktiengesellschaft | Sports equipment |
US4323246A (en) * | 1979-09-28 | 1982-04-06 | Nehrbas Jr George M | Golf practice putting aid |
US4432551A (en) * | 1981-07-10 | 1984-02-21 | Chen Richard M | Golfer's training aid |
US4603862A (en) * | 1981-11-16 | 1986-08-05 | Chen Richard M | Golf ball with alignment marker |
WO1990002586A1 (en) * | 1988-09-05 | 1990-03-22 | Robert Mackean Agnew | Impact recorder |
US4974851A (en) * | 1990-01-16 | 1990-12-04 | Closser Daniel P | Golf club impact making device and method |
US4989876A (en) * | 1987-12-03 | 1991-02-05 | Hawkins Sr Arnold R | Practice golf club and system |
US5033746A (en) * | 1990-07-09 | 1991-07-23 | Jones Michael D | Golf club ball-impact marker |
US5083778A (en) * | 1988-02-18 | 1992-01-28 | Douglass Michael B | Golf club putter head |
US5120358A (en) * | 1989-08-24 | 1992-06-09 | Pippett Robert J | Golf practice aid |
US5142309A (en) * | 1988-06-09 | 1992-08-25 | Consumer Advantage Marketing Group, Inc. | Golf club impact recording system |
US5337670A (en) * | 1994-01-06 | 1994-08-16 | Chung Ming Huang | Process for the transfer printing of a gulf club head |
US5445386A (en) * | 1994-09-21 | 1995-08-29 | Marshall; Perry C. | Device for changing hardness of putter striking face |
US5467538A (en) * | 1994-09-30 | 1995-11-21 | Acushnet Company | Method and apparatus of determining golfer's effective putter loft |
US5609530A (en) * | 1995-08-31 | 1997-03-11 | Emhart Inc. | Dynamic lie determination device and method |
US5688190A (en) * | 1996-02-07 | 1997-11-18 | The Spin Doctor, Ltd. | Removable adhesive backed pads for golf club striking surfaces |
US5690561A (en) * | 1996-02-07 | 1997-11-25 | The Spin Doctor, Ltd. | Removable adhesive backed pads for golf club striking surfaces |
US5779556A (en) * | 1996-07-16 | 1998-07-14 | Cervantes; Eduardo | Golf club point of impact and relative club velocity indicator |
US5830077A (en) * | 1997-06-13 | 1998-11-03 | Yavitz; Edward Q. | Impact detector for use with a golf club |
US5893806A (en) * | 1994-10-12 | 1999-04-13 | Martinez; Rodolfo | Batting instruction method and apparatus |
US6015353A (en) * | 1998-09-02 | 2000-01-18 | Romano; Edward A | Golf swing stroke-error-signalling sensor |
US6045465A (en) * | 1997-04-03 | 2000-04-04 | Alfano; Robert R. | Baseball training bat with colored transferable bands |
US6224496B1 (en) | 1998-03-05 | 2001-05-01 | The Spin Doctor, Ltd. | Golf club head with removable insert |
US6309315B1 (en) * | 1999-07-13 | 2001-10-30 | Thomas H. Adams | Golf tee marking system and method of use |
WO2003031000A1 (en) * | 2001-10-05 | 2003-04-17 | Alpha Art Materials Co.Ltd. | Sticker for recording location of impact of ball on golf club head |
US20030087708A1 (en) * | 2001-11-07 | 2003-05-08 | Richard Tiffin | Divot practice mat |
US20030134686A1 (en) * | 2002-01-11 | 2003-07-17 | Steven Arkley | Golf putting trainer |
US20030216189A1 (en) * | 2001-11-07 | 2003-11-20 | Tiffin Richard Edward | Divot practice mat |
US20040074125A1 (en) * | 2002-10-17 | 2004-04-22 | Johnson Patrick G. | Iron-wood golf club head accessory |
WO2004052467A2 (en) * | 2002-12-06 | 2004-06-24 | Matthews John P | Apparatus and method for recording the impact location between a golf ball and a golf club |
US20040254026A1 (en) * | 2003-06-10 | 2004-12-16 | Tom David, Inc. | Self-sticking pad for a golf club |
US20050026713A1 (en) * | 2001-07-27 | 2005-02-03 | Spencer David P. | Golf head and shaft with flex neutralization and method for manufacturing same |
US20050153790A1 (en) * | 2004-01-13 | 2005-07-14 | Lester David B. | Training aid that generates an impression on a hitting instrument |
US20070155521A1 (en) * | 2005-09-16 | 2007-07-05 | Hauk Thomas D | Golf Swing Practice System |
US20070184912A1 (en) * | 2006-02-09 | 2007-08-09 | Delucia Victor E | Golf club head with bi-polar magnetic impact detectors |
US20080176669A1 (en) * | 2007-01-23 | 2008-07-24 | David Patrick Spencer | Golf Shaft and Club Flex Neutralization/Matching and Method for Manufacturing Same |
US20080254907A1 (en) * | 2007-04-13 | 2008-10-16 | Karsten Manufacturing Corporation | Methods and Apparatus to Indicate Impact of an Object |
US20090005191A1 (en) * | 2007-06-27 | 2009-01-01 | Taylor Made Golf Company, Inc. | Golf club head and face insert |
US20120115625A1 (en) * | 2010-11-08 | 2012-05-10 | Todd Comi | System, device, and method for improving sports swing striking accuracy |
US20140274438A1 (en) * | 2013-03-15 | 2014-09-18 | Nike, Inc. | Fitting A Golf Ball Using A Strike Characteristics Detector |
US20140274439A1 (en) * | 2013-03-15 | 2014-09-18 | Sanwood Llc | Impact Indication and Data Tracking Devices and Methods |
US20140371008A1 (en) * | 2013-06-12 | 2014-12-18 | Steven P. Geotsalitis | Baseball bat swing training device |
US20160038795A1 (en) * | 2014-08-08 | 2016-02-11 | Dunlop Sports Company Limited | Branded weighting system |
US10780335B1 (en) * | 2018-01-25 | 2020-09-22 | Troy James Smith | Contact location identification apparatus and method |
CN116157185A (en) * | 2020-07-14 | 2023-05-23 | 金志勋 | Golf club indicator assembly capable of checking swing track |
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US1464029A (en) * | 1923-08-07 | Oliver coughtrie | ||
US1485089A (en) * | 1922-12-23 | 1924-02-26 | Alvin J Musselman | Golf target |
US2030135A (en) * | 1932-11-01 | 1936-02-11 | Ad Here Paper Company | Adhesive unit |
US2495679A (en) * | 1948-04-05 | 1950-01-31 | Abrecht Rudy | Marking attachment for golf clubs |
-
1950
- 1950-06-24 US US170180A patent/US2660436A/en not_active Expired - Lifetime
Patent Citations (5)
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---|---|---|---|---|
US566101A (en) * | 1896-08-18 | Golf-stick | ||
US1464029A (en) * | 1923-08-07 | Oliver coughtrie | ||
US1485089A (en) * | 1922-12-23 | 1924-02-26 | Alvin J Musselman | Golf target |
US2030135A (en) * | 1932-11-01 | 1936-02-11 | Ad Here Paper Company | Adhesive unit |
US2495679A (en) * | 1948-04-05 | 1950-01-31 | Abrecht Rudy | Marking attachment for golf clubs |
Cited By (83)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3071379A (en) * | 1959-07-20 | 1963-01-01 | Joseph A Canfield | Device for checking golf swing |
US3088321A (en) * | 1960-05-12 | 1963-05-07 | Lathrop John Douglas | Head speed indicator for golf clubs |
US3137507A (en) * | 1961-09-14 | 1964-06-16 | David A Pickler | Golf practice device and method |
US3081091A (en) * | 1962-03-08 | 1963-03-12 | Craig H Grow | Practice ball |
US3516675A (en) * | 1966-05-13 | 1970-06-23 | Brunswick Corp | Golf game apparatus |
US3437341A (en) * | 1967-01-04 | 1969-04-08 | Gen Standard Co | Practice golf club |
US3754764A (en) * | 1972-04-27 | 1973-08-28 | F Manheck | Golf club impact marker |
US4079935A (en) * | 1973-11-09 | 1978-03-21 | Zimm-Zamm Aktiengesellschaft | Sports equipment |
US4323246A (en) * | 1979-09-28 | 1982-04-06 | Nehrbas Jr George M | Golf practice putting aid |
US4432551A (en) * | 1981-07-10 | 1984-02-21 | Chen Richard M | Golfer's training aid |
US4603862A (en) * | 1981-11-16 | 1986-08-05 | Chen Richard M | Golf ball with alignment marker |
US4989876A (en) * | 1987-12-03 | 1991-02-05 | Hawkins Sr Arnold R | Practice golf club and system |
US5083778A (en) * | 1988-02-18 | 1992-01-28 | Douglass Michael B | Golf club putter head |
US5142309A (en) * | 1988-06-09 | 1992-08-25 | Consumer Advantage Marketing Group, Inc. | Golf club impact recording system |
WO1990002586A1 (en) * | 1988-09-05 | 1990-03-22 | Robert Mackean Agnew | Impact recorder |
US5120358A (en) * | 1989-08-24 | 1992-06-09 | Pippett Robert J | Golf practice aid |
US4974851A (en) * | 1990-01-16 | 1990-12-04 | Closser Daniel P | Golf club impact making device and method |
US5033746A (en) * | 1990-07-09 | 1991-07-23 | Jones Michael D | Golf club ball-impact marker |
WO1992000783A1 (en) * | 1990-07-09 | 1992-01-23 | Jones Michael D | Golf club ball-impact marker |
US5337670A (en) * | 1994-01-06 | 1994-08-16 | Chung Ming Huang | Process for the transfer printing of a gulf club head |
US5445386A (en) * | 1994-09-21 | 1995-08-29 | Marshall; Perry C. | Device for changing hardness of putter striking face |
US5467538A (en) * | 1994-09-30 | 1995-11-21 | Acushnet Company | Method and apparatus of determining golfer's effective putter loft |
US5893806A (en) * | 1994-10-12 | 1999-04-13 | Martinez; Rodolfo | Batting instruction method and apparatus |
US5609530A (en) * | 1995-08-31 | 1997-03-11 | Emhart Inc. | Dynamic lie determination device and method |
US5690561A (en) * | 1996-02-07 | 1997-11-25 | The Spin Doctor, Ltd. | Removable adhesive backed pads for golf club striking surfaces |
US5688190A (en) * | 1996-02-07 | 1997-11-18 | The Spin Doctor, Ltd. | Removable adhesive backed pads for golf club striking surfaces |
US5779556A (en) * | 1996-07-16 | 1998-07-14 | Cervantes; Eduardo | Golf club point of impact and relative club velocity indicator |
US6045465A (en) * | 1997-04-03 | 2000-04-04 | Alfano; Robert R. | Baseball training bat with colored transferable bands |
US5830077A (en) * | 1997-06-13 | 1998-11-03 | Yavitz; Edward Q. | Impact detector for use with a golf club |
US6224496B1 (en) | 1998-03-05 | 2001-05-01 | The Spin Doctor, Ltd. | Golf club head with removable insert |
US6015353A (en) * | 1998-09-02 | 2000-01-18 | Romano; Edward A | Golf swing stroke-error-signalling sensor |
US6692382B2 (en) | 1999-07-13 | 2004-02-17 | Thomas H. Adams | Golf tee marking system and method of use |
US20080015043A1 (en) * | 1999-07-13 | 2008-01-17 | Adams Thomas H | Swing Teaching System and Method |
US20060128506A1 (en) * | 1999-07-13 | 2006-06-15 | Adams Thomas H | Golf teaching system and method |
US7238124B2 (en) | 1999-07-13 | 2007-07-03 | Adams Thomas H | Golf teaching system and method |
US20050101413A1 (en) * | 1999-07-13 | 2005-05-12 | Adams Thomas H. | Golf teaching system and method |
US6506131B2 (en) * | 1999-07-13 | 2003-01-14 | Thomas H. Adams | Golf tee marking system and method of use |
US6309315B1 (en) * | 1999-07-13 | 2001-10-30 | Thomas H. Adams | Golf tee marking system and method of use |
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