U.S. patent application number 10/482247 was filed with the patent office on 2004-09-30 for cylindrical golf club.
Invention is credited to Lee, Dong Hwi.
Application Number | 20040192464 10/482247 |
Document ID | / |
Family ID | 32991018 |
Filed Date | 2004-09-30 |
United States Patent
Application |
20040192464 |
Kind Code |
A1 |
Lee, Dong Hwi |
September 30, 2004 |
Cylindrical golf club
Abstract
A golf club having a cylindrical body (12) with a first end
(14), a second end (16) and a centroid-located shaft bore (22).
Into the first end (14) is inserted a putting insert (34) or a
driving insert (74), and into the second end (16) is inserted
respectively a putting-practice insert (42) or a second,
non-striking insert (76). At the centroid of the cylindrical
cylinder (12) is inserted a shaft attachment insert (26) having a
shaft cavity (28) that is in alignment with the shaft bore (22)
located on the cylindrical body (12). Into the shaft bore (22) and
the shaft cavity (28) is inserted and attached a shaft (50) that is
angled outward when using the driving insert (74). The circular
cross-section of the putting insert (32) produces a larger "sweet
spot". Therefore, if the golf ball is struck off-center, the
deviation from a projected staight line is minimized.
Inventors: |
Lee, Dong Hwi; (Whittier,
CA) |
Correspondence
Address: |
ALBERT O COTA
5460 WHITE OAK AVE
SUITE A-331
ENCINO
CA
91316
US
|
Family ID: |
32991018 |
Appl. No.: |
10/482247 |
Filed: |
December 23, 2003 |
PCT Filed: |
April 24, 2002 |
PCT NO: |
PCT/US02/13401 |
Current U.S.
Class: |
473/330 |
Current CPC
Class: |
A63B 69/3685 20130101;
A63B 53/0416 20200801; A63B 53/0466 20130101; A63B 53/0462
20200801; A63B 69/3632 20130101; A63B 53/047 20130101; A63B
2053/0491 20130101; A63B 53/0487 20130101 |
Class at
Publication: |
473/330 |
International
Class: |
A63B 053/04 |
Claims
1. A golf club comprising: a) a cylindrical body having a first end
and a second end, b) a first insert having an outer surface and an
integral inner section, wherein the inner section is dimensioned to
frictionally fit into the first end and to be attached thereto by
an attachment means, c) a second insert having an outer surface and
an integral inner section, wherein the inner section is dimensioned
to frictionally fit into the first end and to be attached thereto
by an attachment means, and d) an upward extending shaft having
means for being attached to the centroid of said cylindrical
body.
2. The golf club as specified in claim 1 wherein said cylindrical
body is constructed of high impact plastic.
3. The golf club as specified in claim 1 wherein said cylindrical
body is constructed of metal.
4. The golf club as specified in claim 2 wherein said first insert
comprises a Putting insert, with the outer surface having a flat
face.
5. The golf club as specified in claim 2 wherein said second insert
comprises a putting-practice insert, with the outer surface having
an inward taper that terminates with a truncated flat tip.
6. The golf club as specified in claim 2 wherein said second insert
comprises a putting-practice insert, with the outer surface having
a flat face wherefrom its center protrudes outward a rod having a
flat terminus.
7. The golf club as specified in claim 2 wherein said second insert
comprises a putting-practice insert, wherein the outer surface is
convex.
8. The golf club as specified in claim 2 wherein said first insert
comprises a driving insert, having an outer surface with a
substantially elliptical shape having a downward extending slope,
and the second insert having an outer surface with a substantially
flat face.
9. The golf club as specified in claim 2 further comprising a shaft
attachment insert that is inserted into and attached to the
substantive center of said cylindrical body.
10. The golf club as specified in claim 9 wherein said cylindrical
body having a centered shaft bore and said shaft attachment insert
having a shaft cavity that is in alignment with the centered shaft
bore, wherein into the bore and the cavity is insert and attached,
by an attachment means, said shaft.
11. The golf club as specified in claim 10 wherein when said golf
club is configured as a golf putter, wherein said shaft extends
upward and is normal to the longitudinal and lateral axes of said
cylindrical body.
12. The golf club as specified in claim 10 wherein when said golf
club is configured as a golf driver, wherein said shaft extends
upward and normal to the longitudinal axis of said cylindrical body
and is angled inward from the lateral axis.
13. The golf club as specified in claim 2 wherein when said
cylindrical body is configured with said golf putting inserts said
cylindrical body has: a) a preferred length of 4.5 inches (11.43
cm), b) a preferred outside diameter of 1.5 inches (3.81 cm), and
c) a wall thickness ranging from 0.16 inches (0.041 cm) to 0.125
inches (0.318 cm).
14. The golf club as specified in claim 1 wherein the upper edges
of the first and second ends of said cylindrical body are
radiused.
15. The golf club as specified in claim 9 wherein said shaft
attachment insert is made of a light weight material.
16. The golf club as specified in claim 15 wherein said shaft
attachment insert is made of wood.
17. The golf club as specified in claim 16 wherein the shaft
attachment insert further comprises an axial bore therethrough to
reduce the weight of said shaft attachment insert.
18. The golf club as specified in claim 2 wherein said first and
second inserts are constructed of metal.
19. The golf club as specified in claim 18 wherein said insert
metal is brass.
20. The golf club as specified in claim 2 wherein said first and
second inserts are constructed of an outer shell that is filled
with a high-density metal.
21. The golf club as specified in claim 14 wherein said means for
attaching said first and second inserts comprises said inserts
having a stepped-down inner edge that interfaces with the
respective first end or second end of said cylindrical body.
22. The golf club as specified in claim 1 wherein said means for
attaching said first and second inserts comprises an adhesive that
is placed around the interfacing surfaces of said inserts and said
cylindrical body.
23. The golf club as specified in claim 1 wherein said means for
attaching said inserts and said shaft to said cylindrical body
comprises cooling the inserts and shaft prior to inserting and
allowing same to return to room temperature.
24. The golf club as specified in claim 10 wherein said means for
attaching said shaft into the centered shaft bore comprises: a) the
shaft cavity on said shaft attachment insert having a set of
internal threads, and b) the lower section of said shaft having a
set of corresponding external threads dimensioned to be threaded
into the threads on the shaft cavity.
25. The golf club as specified in claim 1 wherein said means for
attaching said shaft comprises an adhesive.
26. A golf club designed to function as a golf putter comprising:
a) a cylindrical body having: (1) a first end, (2) a second end,
(3) lower section, (4) upper section, and (5) a longitudinally
centered shaft bore that penetrates the upper section of said
cylindrical body, and wherein the upper Edges of the first and
second ends are radiused, b) a shaft attachment insert having a
shaft cavity, and a diameter dimensioned to frictionally fit into
said cylindrical body, wherein said insert having means for being
attached and located at the centroid of said cylindrical body, with
the shaft cavity in alignment with the centered shaft bore on the
upper section of said cylindrical body, c) a putting insert having
an outer flat face, an inner substantially flat surface, and a
diameter dimensioned to frictionally fit into the first end of said
cylindrical body, wherein said insert having means for being
attached to said cylindrical body with the outer flat face
positioned flush with the first end of said cylindrical body, d) a
putting-practicing insert having an outer section that tapers
inward and terminates with a truncated flat tip, and an inner
section having a substantially flat surface and having a diameter
dimensioned to frictionally fit into the second end of said
cylindrical body, wherein said insert having means for being
attached to said cylindrical body with the beginning of the tapered
outer section positioned flush with the second end of said
cylindrical body, wherein the weight normally included in the
spaces between said putting insert and said putting-practice
inserts is applied respectfully to said inserts, wherein the
weighted said inserts allow said golf putter to have improved
momentum, and, e) an upward extending shaft having an upper
gripping section, a center section, and a lower section, with the
lower section having means for being attached to the centered shaft
bore and the shaft bore cavity, normal to the longitudinal and
lateral axes of said cylindrical body.
27. A golf club designed to function as a golf driver comprising:
a) a cylindrical body having: (1) a first end, (2) a second end,
(3) lower section, (4) upper section, and (5) a longitudinally
centered shaft bore that penetrates the upper section of said
cylindrical body at an angle, and wherein the first and second ends
are radiused, b) a shaft attachment insert having an angled shaft
cavity, and a diameter dimensioned to frictionally fit into said
cylindrical body, wherein said insert having means for being
attached and located at the centroid of said cylindrical body, with
the angled shaft cavity in alignment with the centered and angled
shaft bore on the upper section of said cylindrical body, c) a
first insert configured as a driving insert having an outer surface
and an integral inner section, wherein the outer surface has a
substantially elliptical shape having a downward extending slope,
and the inner section is dimensioned to be inserted and attached,
by an attachment means, into the first end of said cylindrical
body, d) a second non-striking insert having a flat outer surface
and an integral inner section, wherein the inner section is
dimensioned to be inserted and attached, by an attachment means,
into the second end of said cylindrical body, wherein the weight
normally included in the spaces between said first and said second
inserts is applied respectfully to said inserts, wherein the
weighted said inserts allow said golf driver to have improved
momentum, and e) a shaft having an upper gripping section, a
centered section, and a lower section, with the lower section
having means for being attached to the angled shaft bore and the
angled shaft cavity.
28. The golf club as specified in claim 27 wherein said shaft is
placed at an angle that is between 50-degrees and 65-degrees.
Description
TECHNICAL FIELD
[0001] The invention generally pertains to golf clubs and more
particularly, to a cylindrically-shaped golf putter and golf driver
with each designed to improve the club's momentum and to have a
decreased face surface area for both determination and acquisition
of the club's sweet spot.
BACKGROUND ART
[0002] One of the most popular sports throughout the world is golf
with people of all ages and backgrounds enjoying the game. Golf has
always been a competitive sport, but with many new players,
especially professional, the competition has grown.
[0003] While some people may think that golf is an easy sport to
play, merely consisting of hitting a ball with a club into a hole,
it is actually difficult, requiring substantial skill to play the
game. Although it is true that the game does consist of hitting a
ball into a hole, there are many variations of this action. The
three main segments of playing golf are teeing off, which is the
first time the golfer will hit the ball to each hole; driving,
which comprises however many subsequent times the ball must be hit
to arrive at the "green"; and putting, which is actually hitting
the ball into the hole. A driver is used, after teeing off, to
drive the ball onto the green area.
[0004] There are several driver designs which are configured and
angled to best hit the ball onto the green area. The driver design
disclosed herein can be made to accommodate the various driver
angles required to optimize the distance of the drive and to
overcome the surroundings that must be avoided to reach the green,
at which time the putter is utilized.
[0005] A conventional putter consists of a shaft having at its
lower end a flat, wedge-shaped head, with the putting face
comprising the longitudinal, inner surface of the head. Located at
the center of the putting face is the "sweet spot". The single most
difficult aspect of putting is determining and acquiring the sweet
spot. When the ball is struck correctly it will travel in the
desired straight path toward the hole. Any deviation from the sweet
spot, even by a minute amount, will cause the ball to deviate from
its projected trajectory.
[0006] If there was some way of providing better determination and
acquisition of the sweet spot during driving and putting, it could
substantially increase a player's ability to perform well on every
drive and putt, thus improving the entire game.
[0007] A search of the prior art did not disclose any patents that
read directly on the claims of the instant invention, however, the
following U.S. patents are considered related:
1 PATENT NO. INVENTOR ISSUED D367,093 Weir 13 Feb. 1996 3,472,512
Berry 14 Oct. 1969 3,399,898 Burkland 3 Sep. 1968
[0008] The D367,093 patent discloses a design for a croquet mallet
having a circular striking section attached normal to a circular
handle.
[0009] The U.S. Pat. No. 3,472,512 patent discloses a mallet
assembly having a cylindrical section to which is attached, on both
ends, a ball-striking insert each having a central rod-cavity.
Through the upper section of the cylindrical section is located a
handle sleeve having a lower end that terminates against a
bar-stop. The sleeve includes a central rod bore that is in
alignment with a handle bore when a handle is inserted into the
sleeve. To maintain the handle a rod is inserted into the central
rod bore with the ends of the rod inserted into the respective
central rod-cavity.
[0010] The U.S. Pat. No. 3,399,898 patent discloses a golf putter
that is constructed of a solid structure having a putting face. The
putting face is in a true plane that extends normal to the axis of
the putter head and parallel to the axis of the putter head.
DISCLOSURE OF THE INVENTION
[0011] Whenever a person is playing golf, it is very important to
strike the golf ball at the golf club's "sweet spot", which is
located at the exact center of the club head's face. Any deviation
from the center by even a few millimeters can cause the golf ball
to travel in an unwanted direction. This is especially true for
puts, when the golf ball typically remains on the green and travels
a considerably shorter distance than when teeing off or driving.
Most conventional golf putters and golf drivers are designed with a
flat, wedge-shaped head, with the putting face comprising the
longitudinal, inner surface of the head. This design makes it
difficult to aim and to determine and acquire the sweet spot,
especially when using the putter.
[0012] The golf putter and the golf driver of the instant
invention, in its most basic design comprises a cylindrical body
having a first end and a second end. In the golf putter design, a
putting insert is inserted into the first end and into the second
end is inserted a putting-practice insert. In the golf driver
design a driving insert is inserted into the first end and a non
ball-striking insert is inserted into the second end. In both
designs, the momentum of the golf club is significantly improved.
The putting-practice insert, in a preferred design, has a face with
an inward taper that terminates with a truncated tip. The truncated
tip corresponds to the insert's sweet spot, which allows a person
using the putting-practice insert to determine and acquire the
sweet spot for every putt. A shaft extends upward from the centroid
of the cylindrical body. Within the cylindrical body is a shaft
attachment insert, which maintains the shaft securely attached to
the body.
[0013] In view of the above disclosure, the primary object of the
invention is to provide: 1) a golf putter having an improved
momentum, and with the area of the club's face decreased to allow a
person using the club to better determine and acquire the club's
sweet spot, and 2) a golf driver that is designed to have a maximum
momentum.
[0014] It is also an object of the invention to provide a golf club
that:
[0015] the golf putter includes both a putting face and a putting
practicing face on a single structure,
[0016] the golf putter can significantly improve a person's ability
to putt with greater accuracy, by aiming the putter through the
cylinders longitudinal axis,
[0017] can be constructed of a variety of materials to provide a
golf club of different weight and elastic characteristics to
maximize its momentum,
[0018] can be made to be used by either a left handed or a right
handed golfer,
[0019] can be sold individually or as a part of a set of golf
clubs, and
[0020] is cost effective from both a manufacturer's and consumer's
point of view.
[0021] These and other objects and advantages of the present
invention will become apparent from the subsequent detailed
description of the preferred embodiment and the appended claims
taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] FIG. 1 is a side-sectional view of the golf putter showing
the relative locations, within a cylindrical body, of a putting
insert, a putting-practice insert, and a shaft attachment insert
into which is inserted a shaft.
[0023] FIG. 2 is a perspective view showing the golf putter's
cylindrical body with the shaft attachment insert having a shaft
cavity and an axial bore. The putting insert and the
putting-practice insert are not shown.
[0024] FIG. 3 is an exploded perspective view of the golf
putter.
[0025] FIG. 4 is a side elevational view of a putting-practice
insert having a flat face wherefrom its center protrudes outward a
ball-striking rod.
[0026] FIG. 5 is a side elevational view of a putting-practice
insert having a convex striking surface.
[0027] FIG. 6 is a side sectional view showing a golf putter having
a putting insert and a putting-practice insert that each have a
stepped-down inner edge that interfaces with the respective ends of
the cylindrical body.
[0028] FIG. 7 is a partial side elevational view showing an
alternate method for attaching the shaft to the cylindrical body
utilizing a set of complimentary threads.
[0029] FIG. 8 is an illustration showing the angular deviation
.phi. that occurs when the ball is struck by an off-center
distance.
[0030] FIG. 9 is a side elevational-sectional view of a golf driver
showing the relative locations, within a cylindrical body, of a
first insert configured as a driving insert, a second insert and a
shaft attachment insert into which is angularly attached a
shaft.
[0031] FIG. 10 is an end view showing the substantially elliptical
shape of the driving insert.
[0032] FIG. 11 is a top plan view of the driving insert.
BEST MODE FOR CARRYING THE INVENTION
[0033] The best mode for carrying out the invention is presented in
terms of a golf club 10 that is disclosed in further terms of a
preferred embodiment for a golf putter 10A and a golf driver 10B.
The golf putter 10A, which is described first, is shown in FIGS.
1-8 and the golf driver 10B is shown in FIGS. 9-11.
[0034] Conventional golf putters utilize a design that is comprised
of a flat, wedge-shaped putter head with the putting face being the
longitudinal inner surface of the head. When using a golf putter,
or any golf club, it is very important to strike the golf ball at
the "sweet spot", which is located at the centroid of the club
head's face. Any deviation from the center, even by a minute
amount, can cause the golf ball to not travel in a straight
direction, which in turn causes the golf ball to miss its target.
The instant invention discloses a golf putter 10A having a
cylindrically-shaped head, with two putting faces, one located at
each end of the cylinder. BY using this design, the size of the
putter head's face is significantly decreased, thus allowing the
sweet spot to be more easily determined and acquired during a
putt.
[0035] The golf putter 10A, as shown in FIGS. 1-8, is comprised of
the following major elements: a cylindrical body 12, a shaft
attachment insert 26, a putting insert 34, a Putting-practice
insert 42 and a shaft 62.
[0036] The cylindrical body 12, as shown in FIGS. 1-3 and 6 is
comprised of a hollow structure having a first end 14; a second end
16, a lower section 18 and an upper section 20 having a centered
shaft bore 22 located therethrough. The cylindrical body 12 can be
constructed of high impact plastic, or a metal such as titanium,
aluminum or stainless steel. The cylinder has a preferred length of
4.50 inches (11.43 cm), a preferred outside diameter of 1.50 inches
(3.81 cm), and a wall thickness ranging from 0.016 inches (0.041
cm) to 0.125 inches (0.318 cm). The upper edges of the first and
second ends 14,16 of the cylindrical body 12 are radiused 24 or
have a downward angle 24 of between 20-50 degrees, as shown in FIG.
1.
[0037] The shaft attachment insert 26, as shown in FIGS. 1 and 2,
is constructed of a lightweight material such as wood, plastic or a
light metal, and has a shaft cavity 28 and a diameter that is
dimensioned to frictionally fit into the cylindrical body 12. The
insert is located at the centroid of the cylindrical body, with the
shaft cavity 28 in alignment with the centered shaft bore 22 on the
cylindrical body's upper section 20. In order to reduce the weight
of the shaft attachment insert 26, an axial bore 30 can extend
through the insert 26, as shown in FIG. 2.
[0038] The putting insert 34, as shown in FIGS. 1 and 3 is
comprised of an outer flat face 36 and an inner, substantially flat
surface 38. The putting insert 34 has a diameter that is
dimensioned to frictionally fit into the first end 14 of the
cylindrical body 12, with the outer flat face 36 positioned flush
with the first end 14 of the body 12.
[0039] The putting-practicing insert 42 is shown in FIGS. 1, 3, 4
and 5. In FIGS. 1 and 3, the insert 42 is comprised of an outer
face, 44 that tapers inward and terminates with a truncated tip 46.
In FIG. 4 is shown a putting-practice insert 42 that has a flat
face 50 wherefrom its center protrudes outward a ball-striking rod
52. In FIG. 5 is shown a putting-practice insert 42 that has a
convex ball-striking surface 54. In all three designs the
putting-practice inserts 42 have an inner, substantially flat
surface 48. The inner surface 48 has a diameter that is dimensioned
to frictionally fit into the second end 16 of the cylindrical body
12, as shown in FIGS. 1 and 6.
[0040] Both the putting insert 34 and the putting-practice insert
42 can be constructed of solid brass, solid bronze, solid stainless
steel, solid copper, or a brass or bronze outer shell that is
filled with a high-density metal, such as lead. By providing
different materials for the construction of the inserts, the weight
and elastic characteristics of the inserts can be selected and
altered for maximizing the putter's momentum. The momentum is
maximized by adding the weight, that would normally be included in
the spaces between the putting insert 34 and the putting-practice
insert 42, respectfully to the insert 34 and the insert 42.
Further, the material used for the cylindrical body 12, as well as
the inserts 26, 34, 42, the shaft 61 and the upper gripping section
62 are selected to produce a golf putter having a preferred total
weight of 1 pound (453.59 grams).
[0041] The shaft 61, as shown in FIG. 1, is comprised of an upper
gripping section 62, a center section 64, and a lower section 66.
The lower section 66 has means 68 for being securely attached into
the centered shaft bore 22 and the shaft cavity 28 which is located
at the centroid of the cylindrical body 12.
[0042] In order to secure the shaft attachment insert-26 within the
cylindrical body 12, and the putting insert 34 and the
putting-practice insert 42 at each respective end of the
cylindrical body 12, an attachment means is utilized. One type of
attachment means comprises cooling the metal inserts 26,34 and 42
prior to inserting. Once the inserts are in place they will return
to room temperature, which will cause the metal they are
constructed of to expand, thus holding them in place. This
attachment means will also work to attach the shaft 60 to the
cylindrical body 12.
[0043] Another attachment means comprises utilizing an adhesive,
(not shown) such as an epoxy, which is applied in a bead-type
manner around the interfacing surfaces of the inserts 26,34 and 42
and the cylindrical body 12.
[0044] Another attachment means for attaching the putting insert 34
and the putting-practice insert 42 is shown in FIG. 6. In this
means, each insert 34,42 has a stepped-down inner edge 60 that
interfaces with the respective first end 14 or second end 16 of the
cylindrical body 12.
[0045] The attachment means 68 for attaching the shaft 61 to the
cylindrical body 12 comprises the shaft cavity 28 on the shaft
attachment insert 26 having a set of internal threads 70, as shown
in FIG. 7. The lower section 66 of the shaft 61 has a set of
corresponding external threads 72, as also shown in FIG. 7, which
are threaded into the internal threads 70 on the shaft attachment
insert 26. Additionally the attachment means 68 for attaching the
shaft 61 to the cylindrical body 12 can be comprised of an adhesive
(not shown), such as epoxy.
[0046] In order to use the golf putter 10A, a person will approach
and stand near a golf ball in a conventional manner. Once
comfortable, the person aligns his/her shot and then strikes the
golf ball using either the first end 14 of the cylindrical body,
which comprises the putting insert, or he/she will use the second
end 16, which comprises the putting-practice insert 42.
[0047] As the name implies, the putting-practice inserts 42 are
designed to teach a golfer to acquire the "sweet spot". By having
the face of the insert 42 include a relatively small ball striking
zone, the sweet spot becomes the only place possible to strike the
ball. When not practicing, a person will switch to the first end
14, with the putting insert 34. Hopefully, by practicing with one
of the putting-practice inserts 42, a person will be able to
correctly determine the angle at which to hold the golf putter 10
and how/where to strike the golf ball.
[0048] The object of putting is to have the "sweet spot" of the
putter strike the center of the golf ball 50 that the ball is
driven in a projected straight line. Unfortunately, it is difficult
to determine and acquire the sweet spot and more often than not,
the putter strikes the ball at an angle .phi. that deviates from
the sweet spot of the putter, as shown in FIG.8. When this occurs,
the trajectory of the ball will deviate from the projected straight
line. For example, if a conventional putter is used, and the "sweet
spot" of the putter strikes the ball at a distance of 0.25 inches
(0.635 cm) from the ball's center, the ball's trajectory will
deviate from the projected straight line by an approximate angle of
four degrees.
[0049] Conversely, when the inventive putter, which has a larger
sweet spot strikes the ball 0.25 inches (0.635 cm) from the ball's
center, the ball will only deviate from the projected straight line
by an angle of 1.25 degrees. Thus, assuring the player that the
probability of driving the ball at the projected straight line is
enhanced.
[0050] The golf driver 10B as shown in FIGS. 9-11 is comprised of
the following major elements: a cylindrical body 12, a shaft
attachment insert 26, a first insert configured as a driving insert
74, a second insert 76 and a shaft 62.
[0051] The cylindrical body 12 and the shaft 62 are similar to the
elements used in describing the golf putter and therefore are not
described.
[0052] The shaft attachment insert 26 used for the golf driver 74
differs in that the shaft cavity 28 as shown best in FIG. 10 is at
an angle that varies between 50 and 65-degrees depending upon the
driver selected by the golfer which is further dependent upon the
distance and surroundings to the green. The insert angle is in
alignment with the centered shaft bore 22 on the cylindrical body's
upper section 20.
[0053] The golf driver 10B consists of a first insert and a second
insert as shown in FIGS. 9-11. The first insert is configured as a
driving insert 74 having an outer surface 76 and an integral inner
section 82. The outer surface 76 has a substantially elliptical
shape, as shown in FIG. 10, having a downward extending slope 80,
as best shown best in FIG. 9. The inner section 82, as shown in
FIG. 9, is dimensioned to be frictionally inserted and attached, by
an attachment means into the first end 14 of the cylindrical body
12.
[0054] The second insert, which is a non ball-striking insert 94
has a substantially flat outer surface 96 and an integral inner
section 98. The inner section 98 is dimensioned to be frictionally
inserted and attached, by an attachment means, into the second end
16 of the cylindrical body 12. As with the golf putter, the weight
normally included in the space between the driving insert 74 and
the non-ball striking insert 94 is applied respectfully to the
insert 74 and the insert 94. This added weight greatly increases
the momentum of the golf driver 10B. Thus, the area of the sweet
spot is increased to allow a more accurate golf ball
trajectory.
[0055] While the invention has been described in complete detail
and pictorially shown in the accompanying drawings it is not to be
limited to such details, since many changes and modifications may
be made in the invention without departing from the spirit and
scope thereof. For example, the basic design of the invention, in
some cases, is also applicable to a golf iron. Hence, it is
described to cover any and all modifications and forms which may
come within the language and scope of the appended claims.
* * * * *