U.S. patent application number 09/735002 was filed with the patent office on 2002-06-13 for practice putter and head.
Invention is credited to Bullock, Jeffrey G., Bullock, Michael D..
Application Number | 20020072430 09/735002 |
Document ID | / |
Family ID | 24953934 |
Filed Date | 2002-06-13 |
United States Patent
Application |
20020072430 |
Kind Code |
A1 |
Bullock, Michael D. ; et
al. |
June 13, 2002 |
Practice putter and head
Abstract
A putter and putter head for use during putting practice. The
practice putter has a shaft with a grip at an upper end and a
putter head that is designed to improve a golfer's ability to
contact the golf ball on the sweet spot of the putter head. The
putter head has a body having a front surface with a relatively
small, centrally-located, flat ball contact surface that comprises
a sweet spot of the putter head and lateral portions that taper
rearwardly away from the ball contact surface. Striking a golf ball
with the flat ball contact surface propels the ball in a desired
direction, while a mishit propels the ball in an undesirable
direction. This clearly indicates to the golfer whether or not the
ball was stuck on the sweet spot of the putter head and induce the
golfer to properly contact the sweet spot to correctly strike the
golf ball.
Inventors: |
Bullock, Michael D.; (Dove
Canyon, CA) ; Bullock, Jeffrey G.; (Dove Canyon,
CA) |
Correspondence
Address: |
Law Offices of K. W. Float
Box 80790
Rancho Santa Margarita
CA
92688-0790
US
|
Family ID: |
24953934 |
Appl. No.: |
09/735002 |
Filed: |
December 12, 2000 |
Current U.S.
Class: |
473/313 ;
473/340 |
Current CPC
Class: |
A63B 69/3617 20130101;
A63B 69/3685 20130101 |
Class at
Publication: |
473/313 ;
473/340 |
International
Class: |
A63B 053/02; A63B
053/04 |
Claims
What is claimed is:
1. A putter comprising: a shaft having a grip disposed at an upper
end; a putter head disposed at a lower end of the shaft that
comprises: a body having a front surface with a relatively small,
centrally-located, flat ball contact surface that comprises a sweet
spot of the putter head and lateral portions that taper rearwardly
away from the ball contact surface.
2. The putter recited in claim 1 wherein the shaft is straight.
3. The putter recited in claim 1 wherein the shaft has an
offset.
4. The putter recited in claim 1 wherein the body has a trapezoidal
shape.
5. The putter recited in claim 1 wherein the lateral portions of
the front surface are flat surfaces.
6. The putter recited in claim 1 wherein the lateral portions of
the front surface are curved surfaces.
7. The putter recited in claim 1 wherein the putter head has a flat
base with relatively thick lateral ends, one of which has an
opening therein into which the shaft is inserted.
8. The putter recited in claim 7 wherein a rear portion of the
putter head has a cavity formed therein.
9. In a putter having a shaft with a grip disposed at an upper end
and a putter head disposed at a lower end, wherein the putter head
comprises: a body having a front surface with a relatively small,
centrally-located, flat ball contact surface that comprises a sweet
spot of the putter head and lateral portions that taper rearwardly
away from the ball contact surface.
10. The putter head recited in claim 9 wherein the shaft is
straight.
11. The putter head recited in claim 9 wherein the shaft has an
offset.
12. The putter head recited in claim 9 wherein the body has a
trapezoidal shape.
13. The putter head recited in claim 9 wherein the lateral portions
of the front surface are flat surfaces.
14. The putter head recited in claim 9 wherein the lateral portions
of the front surface are curved surfaces.
15. The putter head recited in claim 9 which has a flat base with
relatively thick lateral ends, one of which has an opening therein
into which the shaft is inserted.
16. The putter head recited in claim 15 which further comprises a
cavity formed in a rear portion thereof.
Description
BACKGROUND
[0001] The present invention relates generally to golf clubs and
methods, and more particularly, to a putter and putter head for use
in putting practice that is designed to improve the users ability
to contact the golf ball on the sweet spot of the putter.
[0002] Most conventional golf ball putters are designed for use on
golf courses during play. Such conventional putters have a putter
head that has generally flat hitting surface. The putter head may
have a blade design or a mallet design configured in numerous
shapes.
[0003] A variety of practice putters have also been designed for
use in practicing, some of which may also be used during play. The
US Patent Office patent database was searched for practice putters
as identified in the title of the patent. A number of design and
utility patents were listed in the database search. The design
patents include design Pat. No. D407,452 entitled "Golf putter head
with removable practice mirror", No. D394,291 entitled "Combination
golf putter and golf ball display stand and putt practice device",
No. D367,909 entitled "Golf putting practice aid for use on a golf
putter", and No. D344,563 entitled "Golf practice putter".
[0004] The utility patents revealed in the database search include
U.S. Pat. No. 5,524,895 issued to Nakajima entitled "Practice golf
club putter", U.S. Pat. No. 5,478,078 issued to Lee entitled "Golf
putting practice device for use on a golf putter", U.S. Pat. No.
5,388,832 issued to Hsu entitled "Practice-type golf putter", U.S.
Pat. No. 5,240,253 issued to Cooper entitled "Practice aid golf
club putter", U.S. Pat. No. 4,135,720 issued to Lancellotti
entitled "Golf putter practice device", and U.S. Pat. No. 3,979,125
issued to Lancellotti entitled "Golf putter practice device".
[0005] U.S. Pat. No. 5,524,895 discloses a practice golf club
putter comprising a grip and an elongated shaft extending from the
grip to a putter head. The putter head has a convex striking
surface with three spherical bodies affixed to each other in a
V-position side by side relationship.
[0006] U.S. Pat. No. 5,478,078 discloses a golf putting practice
device including a C-shaped body member having a rear surface with
a pressure sensitive adhesive backing for removably attaching a
guiding device to the striking face of a golf putter. The device
also includes a front surface having a pair of elongated vertical
rails disposed on both inside edges of a pair of vertical legs. Two
pairs of pins are disposed near the ends of the rails, and a marker
pin is disposed on the center of a bridge connected to both legs.
When properly stroked with the golf putter, the rails and pins
allow a golf ball to pass therebetween and strike the sweet spot
through an aperture in the C-shaped body member, which causes the
golf ball to roll straight in the direction of the intended target.
when the golf ball is improperly stroked, it strikes the rails or
pins and is turned away from the target.
[0007] U.S. Pat. No. 5,388,832 discloses a practice-type golf
putter comprising a grip, a shaft, a neck and a head. The grip
contains batteries. The shaft and the neck are hollow structures
for enclosing a pair of wires. A switch is connected between the
batteries and the wires. The head comprises a curved plate
including a wall extending upward from one side thereof for hitting
a golf ball. A socket is mounted on the curved plate and has a body
portion and a U-shaped bracket integrally formed at a top of the
body portion. A receptacle including two beams extending oppositely
and laterally from a periphery thereof provide for pivotal
connection to two upright walls of the U-shaped bracket. A laser
radiator in the receptacle has a first end electrically connected
to the wires that extends from the neck and a second end that
protrudes beyond the receptacle for emitting laser light when the
wires are electrically connected to the batteries. A sleeve cover
including a first end is coupled the receptacle and a second end
defining a hole allowing laser light to emit therefrom.
[0008] U.S. Pat. No. 5,240,253 discloses a golf club putter that
includes an elongated cylindrical extension removably secured to
project forwardly along the club head centerline and providing a
cue stick-like tip for learning to strike a ball squarely during
practice. For play, the extension is either relocated along the
centerline behind the club face, or replaced by an insert, to
maintain the club weight constant for play.
[0009] U.S. Pat. No. 4,135,720 discloses a golf putter practice
device comprising a movable indicator and a plurality of separate
depressions or channels with one of the depressions or channels
defining a path normal to the face of the putter and with the other
depressions or channels defining angular paths with respect to the
putter face. Consequently, upon impact with a golf ball, the
momentum imparted to the indicator causes it to move forwardly into
one or more of the depressions or channels dependent upon the
orientation of the putter in relation to the ball upon impact
therewith. This enables corrections to be made to the putting
stroke if the indicator shows that during the previous putt, the
club face was not properly positioned with respect to the ball upon
impact. The movable indicator may be a steel ball that is retained
in its initial position by a magnet. To avoid distraction, a
pivotable plate or cover may be provided to obscure the indicator
elements from view during the putting stroke.
[0010] U.S. Pat. No. 3,979,125 discloses a golf putter head that
includes a reservoir for receiving a fluid indicator and a
plurality of separate divergent channels in communication therewith
with one of the channels disposed normal to the ball striking face
of the putter head. Upon impact with a golf ball, the momentum
imparted to the indicator fluid causes it to flow forwardly into
one or more of the channels dependent upon the orientation of the
putter in relation to the ball upon impact therewith. The channels
are further constructed so that the liquid indicator entering such
channels is maintained therein so that a positive after-the-fact
indication of the orientation of the putter face in regard to the
ball upon impact is obtained. This enables corrections to be made
to the putting stroke if the liquid indicator shows that during the
previous putt, the club face was not properly positioned with
respect to the ball upon impact.
[0011] It would therefore be desirable to have a practice putter
that may be used to improve the golfers ability to strike the golf
ball on the sweet spot of the head of the putter. Accordingly, it
is an objective of the present invention to provide for an improved
putter and putter head that is designed for use during putting
practice.
SUMMARY OF THE INVENTION
[0012] To accomplish the above and other objectives, the present
invention provides for a putter and putter head for use during
putting practice. The practice putter is used to improve a golfer's
ability to contact the golf ball on the sweet spot of the
putter.
[0013] The practice putter has a grip and a shaft as in
conventional putters. The shaft is connected to a putter head that
is specifically designed to be use during practice and that has a
design the will improve the golfer's ability to contact the golf
ball on the sweet spot of the putter head.
[0014] The putter head has a generally flat base with an upwardly
extending front surface having a relatively small,
centrally-located, flat ball contact surface that comprises the
sweet spot of the putter head. The remainder of the front surface
of the putter head tapers away from the flat ball contact surface
toward the rear of the putter head. The tapered portions of the
front surface of the putter head may be flat or curved, but in any
event are angled with respect to a normal to the flat ball contact
surface.
[0015] The balance of the putter head may be designed in a
conventional manner consistent with overall weight concerns. An
exemplary putter head has lateral portions that are relatively
thick that each have openings formed therein that receive the
shaft. Thus, the practice putter may be made so that it is either
left or right handed. The rear portion of the exemplary putter head
has a cavity formed therein that reduces the overall weight of the
putter head.
[0016] In operation, striking a golf ball with the flat ball
contact surface propels the ball in a desired direction, while a
mishit propels the ball in an undesirable direction. This clearly
indicates to the golfer whether or not the ball was stuck on the
sweet spot (the relatively small, centrally-located, flat ball
contact surface) of the putter head. This induces the golfer to
properly contact the sweet spot to correctly strike the golf
ball.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The various features and advantages of the present invention
may be more readily understood with reference to the following
detailed description taken in conjunction with the accompanying
drawings, wherein like reference numerals designate like structural
elements, and in which:
[0018] FIG. 1 illustrates a front view of an exemplary practice
putter in accordance with the principles of the present
invention;
[0019] FIG. 2 is a side view of the practice putter shown in FIG.
1;
[0020] FIG. 3 is a top view of an exemplary head that may be used
in the practice putter shown in FIGS. 1 and 2;
[0021] FIG. 4 is a front view of the an exemplary head that may be
used in the practice putter shown in FIGS. 1 and 2;
[0022] FIG. 5 is a back view of the an exemplary head that may be
used in the practice putter shown in FIGS. 1 and 2; and
[0023] FIG. 6 is a side view of the an exemplary head that may be
used in the practice putter shown in FIGS. 1 and 2.
DETAILED DESCRIPTION
[0024] Referring to the drawing figures, FIGS. 1 and 2 illustrate
front and side views, respectively, of an exemplary practice putter
10 in accordance with the principles of the present invention.
FIGS. 3-6 are top, front, back and side views, respectively, of an
exemplary head 20 that may be used in the practice putter 10 shown
in FIGS. 1 and 2.
[0025] As is shown in FIGS. 1 and 2, the practice putter 10
comprises a shaft 11 having a grip 12 disposed at its upper end.
The end of the shaft 11 that is distal from the grip 12 is
connected to a putter head 20 in accordance with the principles of
the present invention. The shaft 11 is attached to the putter head
20 at its hosel 26, which is a socket or hole into which the shaft
11 is inserted. It is to be understood that the hosel 26 and the
shaft 11 in the area of the hosel 26 may have any suitable
configuration and is not to be considered as limiting the present
invention. Furthermore, the shaft 11 may be straight or have an
offset, such as is shown in U.S. Pat. Nos. 5,388,832 or 5,240,253,
for example, which also illustrate various hosels 26. The putter
head 20 is optimally designed for use during practice and has a
design the will improve a golfer's ability to contact a golf ball
on the sweet spot of the putter head 20.
[0026] FIGS. 1 and 2 show that the putter head 20 has a body 21,
which may be made of a suitable metal, for example. In plan view,
the body 21 generally has a trapezoidal shape that includes a base
22 having an upwardly extending front surface comprising a
relatively small, centrally-located, flat ball contact surface 23.
This ball contact surface 23 comprises the sweet spot of the putter
head 20. Lateral portions 24 of the front surface of the putter
head 20 tapers away from the flat ball contact surface 23 toward
the rear of the putter head 20.
[0027] In the exemplary putter head 20 illustrated in the drawing
figures, the lateral portions 24 of the front surface are flat
surfaces. However, it is to be understood that the lateral portions
24 of the front surface may have any surface shape, such as curved
(illustrated by the dashed lines in FIG. 3). The shape that is
chosen for the lateral portions 24 of the front surface is selected
so that a golf ball that strikes either of them will not be
propelled in the direction of motion of the putter head 20.
[0028] The balance of the putter head 20 may be designed in a
conventional manner consistent with overall weight concerns. As is
shown more clearly in FIGS. 3-6, the putter head 20 has a generally
flat base 22. The lateral portions 24 of the front surface
terminate at relatively thick ends 25 that each have an opening 26,
26a or hole 26, 26a therein, referred to as the hosel 26, 26a. The
shaft 11 is designed to insert into the openings 26, 26a or holes
26, 26a (hosel 26, 26a) so that the practice putter 10 may be
configured to be either right or left handed.
[0029] A rear portion of the exemplary putter head 20 defined by
the base 22, front surface and ends 25 has a cavity 27 formed
therein that reduces the overall weight of the putter head 20. The
cavity 27 is shown having straight side walls and a curved front
wall located adjacent to the lateral portions 24 and lateral
portions 24 of the front surface.
[0030] In operation, striking a golf ball with the flat ball
contact surface 23 propels the ball in a desired direction that is
normal to the direction of motion of the putter head 20 and contact
surface 23. A mishit of the golf ball (that is, not on the contact
surface 23) propels the ball in an undesirable direction. This
clearly indicates to the golfer whether or not the ball was stuck
on the sweet spot (the relatively small, centrally-located, flat
ball contact surface 23) of the putter head 20. This induces the
golfer to properly contact the sweet spot to correctly strike the
golf ball.
[0031] For the purposes of completeness, dimensions of a typical
putter head 20 are provided below. The rear dimension of the base
22 of the putter head 20 may be about 4.5 inches in length. The
ball contact surface 23 may be on the order of {fraction (5/8)} to
{fraction (1/2)} inches wide. The lateral portions 24 of the front
surface are generally symmetrical and taper to the distal edges of
the ends 25 of putter head 20. The lateral portions 24 may taper
towards the rear of the putter head 20 a distance of about
{fraction (3/8)} inches. The lateral ends 25 of the putter head 20
may be about {fraction (3/4)} inches in depth at the respective
outer edges of the putter head 20 and about 1 inch in width at the
rear surface of the putter head 20. The openings 26, 26a or holes
26, 26a (hosels 26, 26a) have a diameter consistent with the
diameter of the shaft 11. The shaft 11 may be press fit into the
holes 26, 26a (hosels 26, 26a) or may be threaded into
suitably-threaded holes 26, 26a (hosels 26, 26a).
[0032] Thus, an improved putter and putter head that is designed
for practice putting has been disclosed. It is to be understood
that the above-described embodiment is merely illustrative of some
of the many specific embodiments that represent applications of the
principles of the present invention. Clearly, numerous and other
arrangements can be readily devised by those skilled in the art
without departing from the scope of the invention.
* * * * *