WO1998020943A1 - Golf club - Google Patents

Golf club

Info

Publication number
WO1998020943A1
WO1998020943A1 PCT/EP1997/006286 EP9706286W WO9820943A1 WO 1998020943 A1 WO1998020943 A1 WO 1998020943A1 EP 9706286 W EP9706286 W EP 9706286W WO 9820943 A1 WO9820943 A1 WO 9820943A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
golf club
light beam
shaft
characterized
head
Prior art date
Application number
PCT/EP1997/006286
Other languages
German (de)
French (fr)
Inventor
Edith Bachor
Original Assignee
Edith Bachor
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/36Training appliances or apparatus for special sports for golf
    • A63B69/3611Training appliances or apparatus for special sports for golf not used, see A63B69/36 and subgroups
    • A63B69/3614Training appliances or apparatus for special sports for golf not used, see A63B69/36 and subgroups using electro-magnetic, magnetic or ultrasonic radiation emitted, reflected or interrupted by the golf club
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/02Joint structures between the head and the shaft
    • A63B2053/022Joint structures between the head and the shaft allowing adjustable positioning of the head with respect to the shaft

Abstract

Disclosed is a golf club (1) comprising a shaft (1) fitted with a head (4) on its lower end and a light beam producing device (8), the light beam of which (9) is oriented downwards substantially parallel to the axis of the shaft (2). Said golf club is intended to help golfers during practice and game sessions by better monitoring both the swing and the striking of the ball. This is done by displacing the head (4) laterally towards the shaft and by directing the light beam (9) bypassing the head (4).

Description

golf club

The invention relates to a golf club having a shaft, a head disposed at the lower end thereof, and a light beam generating means, the light beam is directed substantially parallel to the axis of the shaft downward.

Such a golf club is known from US Patent 4,456,257.

The aim of the golf game is to drive a ball with as few strokes from a starting point in a hole. Here, it is of fundamental importance to convey a desired direction at a stroke the ball. One difficulty lies here is that you can do some target practice in a static state though. There are known a series of devices with which it can be checked whether the striking surface of the racket is as closely as possible aligned perpendicular to the line along which the ball will move to the shock. Examples include US Patents 4,251,077 and 4,997,189 and WO 93/09856. However, these devices have the disadvantage that they require a considerable effort by adding equipment that hinders the practical application in general and especially on a golf course.

WO 96/04966 shows a further golf club with a recess formed as a laser light beam generating means. The laser beam exits slightly from above of the les Golfbal- and is directed perpendicular to the club face. The laser beam may thus serve as target aid.

EP 0499569 Al shows a golf club with a target assist device which also operates with a laser beam. The laser beam exits here but not just above the clubface, but in the midst of the head.

Also, a player who has trained so that it can align his bat as in the idle state in that the striking surface is in the desired movement direction of the ball exactly vertical, but will encounter difficulties if it is to maintain this alignment during a swing. The result is unsatisfactory in many cases.

The invention is therefore based on the object of providing the player a practice or games help, with which he can control during the swing even if his bat attitude or -führung is correct.

This object is achieved with a golf club of the type mentioned, that the head offset laterally disposed to the shaft and the light beam has been directed on the head.

Unlike the well-known golf club, which already has a light beam generating means, it is possible with the new golf clubs to observe the momentum in the course of a larger area. But above all, also creates the possibility to observe the mallet position at rest, ie the response of the ball. This was not possible before because the club has covered the light spot generated by it on the ground. According to the invention of the light beam on the racket head but is now directed over. So he meets in every case for the player visible on the ground even if the head as the gen Schla- is necessary is kept almost immediately above the ground. The player can then either with or without the ball run a sweep and observe what course takes the light spot generated by the light beam on the floor. The inventor has in fact provides fixed that this course of the light spot with very good approximation follows the course of the struck ball on the floor. This is in many cases independent of the exact alignment of the club head to the desired ball movement. Obviously, the dynamic torque plays a not insignificant role in the strike. But this influence can be estimated with either a static device still alone by tracing a swing outside of the impact of the head on the ball. With of the inventive solution to this problem is overcome. Even with short bat movements of the swing curve for monitoring purposes can be observed well. The racket forms a unit with the light beam generating means, so that the normal impact performance is not hindered by dropping or Ansätzteile or falsified. in this case, "parallel" also means that the light beam can lie on the axis. The light beam may have a certain thickness.

Advantageously, the light beam in front of the face of the head is over directed. He then applies for example to the ball so that the players here has a good control option for the moment when the club hits the ball.

Preferably, the light beam crosses a line that is at the ideal point of incidence perpendicular to the striking face. This ideal of impact is also called "Sweet Spot". It is usually the point that is balanced in weight so that it transfers the greatest impact force to the ball. So that the light beam is an additional objective of the aid. When the light beam strikes the ball in the middle, then one can assume that the contact between the ball and head and at the ideal point of impact or at done "sweet spot". In addition, the previously known target can of course tool, such as a line to be perpendicular to the face exists at the ideal point of impact on the top of the head.

It is also advantageous that the light beam 5-50 mm, in particular about 19 to 23 mm from the face corresponds is removed. So that the light beam strikes the golf ball about in the middle when the head touched the ball. This training is particularly important for the preparation of the strike advantage. The player can easily check that the light beam strikes the ball parallel to the face in the middle, even though he is perpendicular to the club face at about the center of the ball.

Preferably, the light beam generating means is arranged in the handle region of the shaft. There, the acceleration forces are lowest in both negative and positive direction. The mechanical stress of the light beam generating means can be kept small.

Advantageously, the light beam generating means is formed by a laser unit, which is arranged in the shaft. A laser unit generates laser beam a, that is a very highly collimated light that still forms in a larger distance a relatively narrowly defined spot of light on the ground, which also is still clearly visible. The laser can be easily accommodated in the grip area of ​​the shaft. It can be formed managemen t, for example, by a laser diode with a suitable therefor Ansteuersc. To the exit of the light from the shaft of the jet is not fanned extent that it stirs the skirt walls loading. The light beam is thus performed largely in sync with the movement of the hand of the player. Also, the alignment of the laser unit is simplified, the further the Lichstrahlerzeugungseinrichtung is removed from the lower end of the shaft. In this case, the "direction lines" increased. When the laser beam emerges from the opening at the lower end of the shaft, that is, it meets this opening, then the beam with a very good approximation, is aligned parallel to the axis of the shaft.

Preferably, the laser unit generates a colored, in particular red light. This has two advantages. For one example, red lasers are relatively inexpensive to buy. On the other hand, a colored spot on the green grass is still clearly visible. The color choice RICH tet after the underground, to be played on.

Preferably, the stem at the lower end of a plug receptacle. In the plug receiving a plug may be disposed. Especially if one wants to prevent the Lichtstrahlerzeugungsein- direction is used as a playing aid, for example, during a tournament, you can simply insert the plug. This is blocked with relatively simple measures that help. You have to make any further intervention in the interior of the racket. Preferably, the bat on a removable plug in the plug receptacle, which protrudes from the shaft in the inserted state. This ensures a visual check whether the plug is inserted in the racket or not.

Advantageously, the light beam generating means to a power switch, which is arranged in the handle area. This way you can ensure that the light beam generator is only switched on when the club is actually held by the handle. This has two advantages. On the one hand, energy is saved. The light beam generating means is thus not accidentally. Secondly, this is a safety aspect. The light beam generator is only switched on when the player actually holds the bat in his hand. so it can not be left unattended generate a beam of light that could disturb or endanger other. Once the player can release the handle, the power switch interrupts the operation of the light beam generating means.

It is particularly preferred that the on-switch is configured as a sensor switch. A sensor switch does not require any moving parts. For example, it reacts to heat or pressure of a hand. The light beam generating means can be put into operation so once the player puts his hand around the handle of the racket. Usually golf clubs are inserted with the handle down during transport in a golf bag. In a sensor switch, the risk of accidental switching is low.

Another safety aspect can be provided in an OF PREFERRED th embodiment that the light beam generating means is provided with a designed as a gravity switch safety switch which only enables a function of the light beam generating means when a predetermined minimum force acts in the direction to the lower end of the shaft. The light beam generating means should only be driven in loading can go when the club is held within striking attitude or the player performs a swing. In the first case the force of gravity on the racket and thus also on the gravity switch, which thus permits an activation of the light beam generating means acts. Thus, when the racket is held so that the head facing downward, then the light beam can exit. Otherwise, the gravity switch can also be activated because a centrifugal force on the bat toward the LAD fes, thus acts during the swing towards the lower end of the shaft, which is also an activation of the light beam - generating device allows. In the first case a nuisance or hazard is excluded by others, because the light beam is directed exclusively to the ground. In the second case, a hazard is also excluded because during the swing movement takes place, each directs the light beam only on very short notice to certain areas.

In a preferred embodiment, the racquet is formed as a putter. In another preferred embodiment it is constructed as a wedge. Both are bats, which require the high precision of the swing, while the strokes executed with these clubs often require only a small swing.

Preferably, the light beam generating means is formed as a module which can be inserted from one end side in the handle portion. Such modules are available commercially in the form of laser pointer, which have approximately the shape of a pen. Their external diameter is slightly smaller than the inner diameter of a shaft of a normal golf club so that you can meet with a few additional measures, such as the formation of an insert in the golf club, a receptacle for such a light beam generating module. When not in use the golf club, the light beam generating device can then be removed from the bat. This has two advantages: firstly, there is no danger that an accidental Falschbe- dienung the golf club a dangerous light beam exits and other persons adversely affected. Secondly, the light beam generating means can be used for other purposes.

It is particularly preferred that the stem in

Handle portion has a slot for receiving a switching element of the module. In one embodiment of known laser pointers, the switching element is formed by a clip, with which the laser pointer can be normally mounted in a pocket.

By gently pressing this clip you can take the laser pointer into operation. If one now provides the golf bat in the region of the handle with a slot, this can pass through the clip or other switching element, then one can also operate such a module conveniently and easily from the outside.

The invention is described below with reference to preferred exemplary embodiments in conjunction with the drawings. The drawings are:

Fig. 1 is a schematic perspective view of a formed as a putter golf club,

Fig. 2 is a schematic front view of a putter

Fig. 3 is a schematic side view of a putter, Fig. 4 is a schematic cross-sectional view of a handle portion of a racket,

Fig. 5 is a front view of a golf club designed as a wedge,

Fig. 6 shows an alternative embodiment to Fig. 4 and

Fig. 7 shows a further alternative embodiment of a handle portion of the racket.

An illustrated in Fig. 1 putter 1 has a shaft 2, a handle 3 is arranged at the upper end, while a head 4 is located at its lower end. The head 4 is shown exaggerated in FIG. 1.

The head 4 has a face. 5 The striking face 5 is offset laterally to the shank 2 in such a manner that a space remains free in extension of the shaft 2, is therefore not blocked by the head. 4

This is achieved in that the head 4 is connected via an angle bracket 6 to the shaft 2 is reached. The angular kelhalter 6 has a seat 7 for the shaft. Represented a rectangular angle holder 6. Of course other shapes are conceivable as long as the head 4 bent relative to the shaft 2 or is laterally offset. One can also use a correspondingly curved shaft with an opening or a suitably shaped head, instead of a separate angular kelhalters. 6

In the shaft 2, more precisely in the area of ​​the handle 3, a light beam generating means 8 shown in detail in Fig. 4 is arranged. The Lichtstrahlerzeu- restriction device 8 produces a highly collimated light beam 9 which emerges from the shaft 2 at the lower end of the shaft. 2 Since the space is freely there, the light beam 9 may propagate unhindered and there meet either the ground or a schematically depicted in FIG. 2, ball 10 has. but he remains in any case visible both during the swing as well as the goals or response before the swing.

In Figs. 1 to 3 on the club face 5 of the head 4 an ideal impact point 11 ( "sweat spot") located. This is the point that is balanced in weight so that the head when he hits the ball at him this ideal of impact 11, gives the greatest acceleration. The light beam 9 is then aligned so that it intersects with a perpendicular to the impact surface 5, and erected at the impact point 11 line 12th So that the light beam 9 is an additional objective of the aid. The player knows that when the light beam 9 hits the ball at a certain point, the ball is in the ideal position relative to the

Head 4 or else the club properly expressed in terms is held to the ball.

Alternatively, the beam can be directed past behind the club face 5 on the head. 4 He is then tracked to the head, so to speak. Optionally, the head can then be formed thinner at its back or have a recess in order not to obstruct the light beam path to the ground. This is particularly a formed as a wedge racket advantageous because thereby the shaft is displaced so at the same time that the risk of a ball contact with the shaft is smaller. Such ball contact points leads to criminal according to the general rules of golf. In order to prevent the leakage of the light beam 9 reliable, which can be necessary for example in tournaments where target aids are prohibited, the lower end of the shaft 2 can be closed by a plug 27th This is then placed in a designated plug receptacle and protrudes from the shaft for control purposes. 2

Fig. 4 shows the detailed structure of the Lichtstrahler- generating means 8 are planned in this case first two batteries 13, 14 which form the sources of energy. Of course, more or fewer batteries can be provided. connected in series with the batteries is a safety switch 15, which in the present example approximately execution is constructed as gravity switches. It has a contact element 16, only upon the occurrence of a predetermined force in a downward direction two contacts 17, 18 to each other. If the force is not available, then the contact element is pressed by a spring 19 from the contacts. The force 16, brings the contact element in connection with the contacts 17 18 can be, for example gravity. but this is only effective when the club is held with its head four down. Another possibly occurring force is the centrifugal force when performing with the bat a swing. Also in this case, the safety switch 15 but can activate the light beam generating means. Of course, such a safety switch may also have a different structure. So that the light beam generating means but is actually only activated when a player handles the bat, a switch 20 is provided in the form of a sensor switch in the handle. He responded examples game, on pressure or temperature and is connected to a control electronics 21st The light beam generating means can be activated only so if acting on the switch 20th

In series with the switch 20 or the electronic control unit 21 is a laser unit 22 is then arranged with associated electronics 23rd The laser unit 22 generates the light beam 9 which emerges as a highly collimated red laser beam from the shaft. 2

however, this, as mentioned above, provided that the racket is held by either his head 4 downward or the player performs a swing and at the same time the switch is operated 20th If the club is transported, what is usually the

Handle 3 downwardly and the head 4 is held upward, the laser unit 22 can not be activated.

One can also provide that the light beam generating means 8 can be removed from the stem 2 completely. Instead, you can use a spare weight, so that the impact or play behavior of the racket does not change. It can also divide the shank 2 in the longitudinal direction in several sections and replaceable customize the portion containing the light beam generating means.

Preferably, however, the entire Lichtstrahlerzeu- is restriction device 8 accommodated in the handle region of the shaft. 2 There, the transverse forces, such as the impact of the head 4 on the ball 10 are the smallest. However, it can also accommodate the electronics of the light beam generating means in the handle area and the laser unit, for example a laser diode with the lens, at the head end of the shank. The laser diode itself is relatively insensitive to external influences.

As is apparent from Fig. 2, the light beam enters 9 from a predetermined distance d in front of the striking face 5. Distance d is selected so that the light beam 9 in the response of the ball 10 on the ball, preferably approximately at the apex of the ball 10 impinges. This makes it easier, as I said, the goals. In an ordinary ball diameter of about 42 mm and the distance is then 5 to 50 mm, preferably about 19 to 23 mm.

Fig. 5 shows a formed as a wedge 24 rackets. This is also known as "9 iron." The head 4 'has a striking surface 5', which is inclined relative to the shaft 2 '. Such a racket, a special iron is suitable for approach shots and shots from bunkers. Again, it depends on a precise the bat in particular.

From Fig. 5 is also seen that the lateral displacement of the head 4 'to the shaft 2' can thereby be caused to the shaft 2 'has a bent lower end 25. In this case, in the range of the angle is an opening 26, from which the light beam can escape. 9

Fig. 6 shows an alternative embodiment of a handle portion of a racquet in which the "inside" in most areas provides only schematic ones shown, is. The shaft 2 is here made of metal. The battery 13 is conductively connected to the shaft 2 is connected. The shaft 2 is in the area of ​​the handle 3 is surrounded by a layer 30, for example of leather. The layer 30 also covers a metal plate 31 which is connected via a rocker joint 32 with the shaft. 2 However, the metal plate 31 has no electrical connection to the shaft 2, but only to the control electronics 21 '. Both sides of the teeter hinge 32 are return springs 33, 34 are provided which return the metal plate 31 with respect to the shaft 2 in the position shown.

When a golf player takes the racket in the hand, then it automatically compresses the handle 3 a little, so that the metal plate 31 comes to bear against the shaft 2, and thus an electrical connection from the battery 13 over the shaft 2 and the metal plate 31 can be made to the control electronics 21 '. This system can also be performed by a bending out of the metal plate 31 provided that the metal plate 31 by itself applying the necessary restoring force. The operation of the light beam generating means 22 thus occurs whenever a golf club on the grip handles, regardless of where the hand actually is created.

Fig. 7 shows an alternative embodiment of a handle 3 'of a golf club. The shaft 2 'is hollow and has in the region of the handle 3' with a slot 35, which is guided from the upper end face a certain distance in the direction of the club head.

The light beam generating means 22 'is formed as a module in the shaft 2' can be used. Shown is the formation of a so-called module as a laser pointer that has the approximate shape of a Kugeisehreibes. Such a laser pointer is operated characterized in that 36 depresses a switching element in the form of a clip. The switching element 36 fits snugly in the slot 35. The slot 35 is arranged at a position where it can be detected by the golfer when executing a shock. So if the golfer puts his hand around the handle 3 ', then he also acted upon the switching element 36 so that a laser beam is directed onto the lawn or on the ball.

Just as the light beam generating means 22 can be used 'in the direction of arrow 37 in the shaft 2', they can again be removed, so that one can ensure on the one hand that it is not accidentally a light beam is generated during transport and other individuals at risk , On the other hand, it is the light beam generating means 22 'also use it for other purposes, such as purposes for training.

Claims

claims
1. golf club having a shaft, a head at its lower end arranged with a light beam generating means, the light beam is directed substantially parallel to the axis of the shaft downwardly, characterized in that the head (4, 4 ') laterally offset from the shaft (2, 2 ') is arranged and the light beam (9) on the head (4, 4') is directed past.
2. Golf club according to claim 1, characterized in that the light beam (9) in front of the striking surface (5, 5 ') of the head (4, 4') is directed past.
3. The golf club of claim 1 or 2, characterized denotes Ge, that the light beam (9) a line
(12) crosses, which is perpendicular in the ideal point of impact (11) on the face (5).
4. The golf club of any one of claims 1 to 3, by DA in that the light beam (9) about
5-50 mm, in particular 19 to 23 mm, area of ​​the impact (5) is removed. _ _
17
5. The golf club of one of claims 1 to 4, characterized in that the light beam generating means (8) in the handle area (3) of the shaft (2) is arranged.
6. The golf club of one of claims 1 to 5, characterized in that the light beam generating means (8) through a laser unit (22) is formed in the shaft (2) is arranged.
7. The golf club of claim 6, characterized in that the laser unit (22) generates a red light.
8. The golf club of any one of claims 1 to 7, characterized in that the shank (2) has a plug receptacle on the lower end.
9. The golf club of claim 8, characterized gekennzeich- net that it comprises a removable plug (27) in the stuffing holder, which protrudes in the inserted state of the shaft (2).
10. A golf club according to any one of claims 1 to 9, data carried in that the light beam generating means (8) comprises a power switch (20) which is arranged in the grip region (3).
11. Golf club according to claim 10, characterized gekennzeich- net, that the on-switch (20) is designed as sensor switches.
12. A golf club according to any one of claims 1 to 11, characterized in that the Lichtstrahlerzeu- restriction device (8) with a constructed as gravity switches the safety switch (15) is provided, which allows a function of Lichtstrahler- generating means (8) only when a predetermined minimum force acts in the direction to the lower end of the shaft (2).
13. A golf club according to any one of claims 1 to 12, characterized in that it is formed as a putter (1).
14. The golf club of any one of claims 1 to 12, by DA in that it is formed as a wedge (24).
15. A golf club according to claim 14, that the light beam
(9) is directed behind the face on the head (4 ') vorbeige-.
16. A golf club according to any one of claims 1 to 15, characterized in that the light beam generating means (22 ') is designed as a module which can be inserted from one end side in the handle portion.
17. Golf club according to claim 16, characterized in that the shaft (2 ') comprises a slot in the grip area (35) for receiving the module (22 of a switching element (36)').
PCT/EP1997/006286 1996-11-13 1997-11-11 Golf club WO1998020943A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19646822.1 1996-11-13
DE1996146822 DE19646822C1 (en) 1996-11-13 1996-11-13 Golf club with shaft and head at lower end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU5321498A AU5321498A (en) 1996-11-13 1997-11-11 Golf club

Publications (1)

Publication Number Publication Date
WO1998020943A1 true true WO1998020943A1 (en) 1998-05-22

Family

ID=7811498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/006286 WO1998020943A1 (en) 1996-11-13 1997-11-11 Golf club

Country Status (2)

Country Link
DE (1) DE19646822C1 (en)
WO (1) WO1998020943A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953034A (en) * 1975-04-07 1976-04-27 Nelson Rodney L Laser beam golf swing training device
US4251077A (en) 1979-03-14 1981-02-17 Preceptor Golf Ltd. Target alignment system for use with a golf club
US4456257A (en) 1982-09-16 1984-06-26 Perkins Sonnie J Golf club swing training device
US4997189A (en) 1990-02-28 1991-03-05 Perkins Sonnie J Putting teaching and learning apparatus and method
EP0499569A1 (en) 1991-02-11 1992-08-19 Juan De Aguilar Villanova-Rattazzi Golf club with aiming means
US5165691A (en) * 1991-10-23 1992-11-24 Cook Jon C Laser golf club putter assembly
WO1993009856A1 (en) 1991-11-21 1993-05-27 Reimers Eric W Putter alignment system
US5377541A (en) * 1992-11-18 1995-01-03 Patten; Richard L. Golf club grip training assembly
WO1996004966A1 (en) 1994-08-15 1996-02-22 Carney William P Golf club putter with laser aiming system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953034A (en) * 1975-04-07 1976-04-27 Nelson Rodney L Laser beam golf swing training device
US4251077A (en) 1979-03-14 1981-02-17 Preceptor Golf Ltd. Target alignment system for use with a golf club
US4456257A (en) 1982-09-16 1984-06-26 Perkins Sonnie J Golf club swing training device
US4997189A (en) 1990-02-28 1991-03-05 Perkins Sonnie J Putting teaching and learning apparatus and method
EP0499569A1 (en) 1991-02-11 1992-08-19 Juan De Aguilar Villanova-Rattazzi Golf club with aiming means
US5165691A (en) * 1991-10-23 1992-11-24 Cook Jon C Laser golf club putter assembly
WO1993009856A1 (en) 1991-11-21 1993-05-27 Reimers Eric W Putter alignment system
US5377541A (en) * 1992-11-18 1995-01-03 Patten; Richard L. Golf club grip training assembly
WO1996004966A1 (en) 1994-08-15 1996-02-22 Carney William P Golf club putter with laser aiming system

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