U.S. patent number 3,649,029 [Application Number 04/840,178] was granted by the patent office on 1972-03-14 for golf practice apparatus.
Invention is credited to Eugene N. Worrell.
United States Patent |
3,649,029 |
Worrell |
March 14, 1972 |
GOLF PRACTICE APPARATUS
Abstract
Golf practice apparatus for use in improving the golfing
techniques of a golfer is disclosed. The apparatus includes
luminescent material, preferably disposed on a decal secured to the
head of a golf club, and a practice mat having luminescent material
disposed thereon either in the form of a decal or imprinted
thereon. The luminescent material on the club head permits visual
observation of the movement of the club head during the execution
of a swing of the golf club and the luminescent material on the
base mat provides an indication of the desired path of travel over
which the club head should travel when the golfer executes a
correct swing. The luminescent material, preferably emits radiation
in the visible range of the spectrum when ultra-violet radiation is
impinged thereon and an ultra-violet lamp is provided for producing
ultra-violet radiation for impingement on the material such that
visual observation of the material can be had in an environment
substantially devoid of light whereby a user of the apparatus can
concentrate on the arc of his swing and correct any tendency on his
part to swing the golf club in a path other than the desired path.
The luminescent material may be characterized by a pair of parallel
strips extending longitudinally on opposite sides of a putting
target which lines are spaced apart by the length of a putter head,
parallel cross strips therebetween, as well as by a cross strip as
a heel position marker to improve the golfer's stance. The
luminescent material may also be applied to the toe portions of a
golfer's shoes as well as his glove or gloves. The luminescent
material may be applied as pressure-sensitive adhesive.
Inventors: |
Worrell; Eugene N. (Glenshaw,
PA) |
Family
ID: |
25281640 |
Appl.
No.: |
04/840,178 |
Filed: |
July 9, 1969 |
Current U.S.
Class: |
473/251; 2/245;
273/DIG.24; 434/252 |
Current CPC
Class: |
A63B
69/36 (20130101); Y10S 273/24 (20130101); A63B
2225/76 (20200801); A63B 69/3614 (20130101) |
Current International
Class: |
A63B
69/36 (20060101); A63b 069/36 () |
Field of
Search: |
;273/183,186,195,196,197,198,56,193B,163,194A ;250/71 ;35/29 |
References Cited
[Referenced By]
U.S. Patent Documents
Other References
"Product Engineering," July, 1947, pages 144-149.
|
Primary Examiner: Marlo; George J.
Claims
I claim as my invention:
1. In combination with a golf club having a shaft with a head on
its lower end and a golf practice surface, golf practice apparatus
comprising means on said golf practice surface for defining a
desired luminescent path over which said club head should travel as
the head approaches a ball-hitting point during the execution of a
correct swing of the club, said luminescent means comprising at
least one strip of luminescent material extending backwardly from
the ball-hitting point along the desired path of the club, and
second luminescent means on the top of said club head to permit
visual observation of the movement of the head relative to said
path during said swing.
2. The combination defined in claim 1, in which said second
luminescent means is a luminescent decal provided with
pressure-sensitive adhesive backing securing it to the top of said
club head.
3. The combination defined in claim 1, in which said second
luminescent means is a luminescent decal provided with
pressure-sensitive adhesive backing securing it to the top of said
club head, and the first-mentioned luminescent means is luminescent
decal means provided with pressure-sensitive adhesive backing
securing it to said golf practice surface.
4. The combination defined in claim 1, in which said
first-mentioned and second luminescent means include a
light-emitting substance adapted to emit radiation in the visible
range of the spectrum when ultra-violet radiation is impinged
thereon, said combination including means for producing said
ultra-violet radiation.
5. The combination defined in claim 1, including third luminescent
means adapted to be secured to the shoes of a user of said golf
club to permit visual observation of the position of his feet
during said swing.
6. The combination defined in claim 1, in which said golf practice
surface is the upper surface of a base mat adapted to be laid on a
substantially flat support.
7. The combination defined in claim 6, in which said mat is
provided at a point spaced longitudinally from one end of said
luminescent path with a luminescent marking for use as a target
when said golf club is a putter.
8. The combination defined in claim 6, in which said golf club is a
putter, and said first-mentioned luminescent means include a pair
of parallel strips spaced apart a distance substantially equal to
the length of the club head and a plurality of cross strips
extending transversely between said parallel strips perpendicular
thereto and spaced apart lengthwise thereof.
9. The combination defined in claim 1, in which said golf club is a
putter, said golf practice surface is the upper surface of a base
mat adapted to be laid on a substantially flat support, said
first-mentioned luminescent means include a pair of parallel strips
spaced apart a distance substantially equal to the length of the
club head and a plurality of cross strips extending transversely
between said parallel strips perpendicular thereto and spaced apart
lengthwise thereof, and said mat is provided at a point spaced
longitudinally from one end of said strips with a luminescent
marking for use as a target when the user of the golf club is
practicing putting.
Description
BACKGROUND OF THE INVENTION
This invention relates to golf practice apparatus which will
indicate visually, mainly to the user of the apparatus but also to
an observer or teacher, whether or not his technique or stroke with
any of the various golf clubs used by golfers is correct or
proper.
Various types of swing indicators have been provided in the prior
art to attempt to aid a golfer in correcting or improving his
stroke either in the form of special golf clubs or as attachments
for standard golf clubs. As an example of the latter type swing
indicator, see the U.S. Pat. No. 3,070,373 which describes a lamp
secured to a standard golf club that provides a visual indication
of the nature of the swing of a golfer to him or an instructor.
SUMMARY OF THE INVENTION
Briefly, the present invention provides in combination with a golf
club having a shaft with a head on its lower end, luminescent means
associated with the head of the golf club for permitting visual
observation of the movement of the club head during the execution
of a swing of the golf club. Preferably, the luminescent means
comprises a decal having a pressure-sensitive adhesive backing for
securing it to the club head. While the top surface of the decal
may be of any very bright color which will enhance visual
observation thereof in ordinary lighting, the top surface of the
decal preferably includes a light-emitting substance adapted to
emit radiation in the visible range of the spectrum when
ultraviolet light is impinged thereon. In accordance with the
invention, a means is provided for producing ultraviolet radiation
for impringement upon the top surface of the decal such that visual
observation of the movement of the club during the execution of a
swing of the golf club can be had in an environment substantially
devoid of light.
Also, the invention provides a second luminescent means for use in
association with a golf club, as above described, and the surface
of a golf practice area to substantially define a desired path of
travel over which the head of the golf club should move as the club
head approaches a ball hitting point during the execution of a
correct swing of the golf club.
As will become evident hereinafter, the apparatus provided by the
present invention is useful in improving the techniques of a golfer
with respect to his stance and both his putting and driving.
Other features and advantages of the invention will become apparent
from the following description when taken in conjunction with the
attached drawings which form a part of this specification.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagrammatic view illustrating apparatus in accordance
with the invention; and
FIG. 2 is a partial plan view of the base mat shown in FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, there is partially shown in FIG. 1
the legs of a golfer and the lower portion of a partially shown
golf club 10. It is to be understood that the club 10 is being held
by the golfer by the handle portion adjacent the upper end of the
shaft 12. The golfer is standing on a ground supported, practice
base mat partially shown at 14.
In accordance with the invention, the club head 16 is provided on
its upper surface with luminescent material 18. The material 18 may
be provided on the club head as an inset containing the luminescent
material or may be a coating on the club head 16, however, it is
preferred that the material be disposed on the upper surface of a
vinyl or paper decal provided with an adhesive backing for securing
it to the club head 16. The term luminescent as used herein is to
be taken in its broadest sense as meaning adapted for the
production of luminescence or any emission of light not ascribable
directly to incandescence. Further, it includes light-emitting
substances or materials such as fluorescent or phosphorescent
metallic salts which emit radiation in the visible portion of the
spectrum when ultraviolet radiation is impinged thereon.
The shoes 20 of the golfer are also provided with luminescent
material 22 adjacent the toe portions thereof. The material 22
likewise may be a coating on the shoes 20 but preferably also
comprise vinyl or paper decals similar to the decal on the club
10.
Disposed on the upper surface of the base mat 14 is a diagram or
grid pattern of luminescent material shown generally at 24.
Preferably, the base mat 14 is formed of a longitudinally extending
section of clear plastic material with the luminescent pattern 24
imprinted thereon, however, the illustrated pattern may also be
constructed of a single or a plurality of decals, as described
above, secured to the mat 14 or any other golf practice area aside
from the mat 14, such as a carpet or directly to the ground.
The pattern 24 comprises a pair of parallel longitudinally
extending strips 26 and 28 which are substantially spaced apart the
length of the head of a putter club 29 (FIG. 2). The reason for
this spacing will appear hereinafter. The pattern 24 also includes
a plurality of parallel, spaced-apart strips 30 extending
transversely between the strips 26 and 28. As will appear more
fully hereinafter, the strips 30 are utilized in conjunction with
the strips 26 and 28 when the golfer is practicing his putting
technique.
Also shown in FIG. 1 is a lamp 32. The lamp 32 provides ultraviolet
radiation for impingement upon the luminescent material disposed on
the club 10, the mat 14 and the shoes 20 of the golfer such that
visual observation thereof can be had in an environment
substantially devoid of light, that is, in a dark room or other
environment normally considered to have little, if any, lighting
therein.
The use of a golf ball, either of the standard or practice type, is
optional with the apparatus as thus far described, however, a ball
has been illustrated in the drawing in solid line at 34, which is
where a ball, if used, would be located in practicing driving, and
in broken lines 36 to designate a position located centrally
between the strips 26 and 28, which is the general location that a
ball would be positioned when practicing putting. There is also
indicated in FIG. 1 a marking 38 which serves as a target when the
apparatus is used in practicing putting and a transversely
extending strip 40 which serves as a heel position marker when the
apparatus is used in practicing driving. The marking 38, the strip
40, and the golf ball, when used, are each preferably provided with
luminescent material in the form of a coating or a decal of the
type as above described.
Having thus described the apparatus of the invention, its use and
application in improving the golfing techniques of a golfer will
now be given. As is known to those skilled in the art, in a
properly executed swing of a golf club, the club head must follow a
straight line approach to the ball hitting point. Any deviation
from this straight line approach is the main cause of a hook or
slice in driving, and the main cause of missing putts when
putting.
The luminescent material provided on the golf club 10 permits the
visual observation of the movement of the club head 16 during the
execution of a swing of the golf club both in driving and in
putting.
When practicing driving or putting, the pattern 24 substantially
defines the desired path of travel over which the head of the golf
club should move as the club head approaches the ball hitting point
during the execution of a correct swing of the golf club. A more
definite description of this path, when driving, is defined by the
strip 26. In practicing driving, if the club head is moving in a
path which arcs outwardly or inwardly from the club user as viewed,
for example, by him, and crosses the strip 26, he will be able to
visually observe such a crossing. A crossing of the strip 26 which
arcs inwardly toward the club user generally produces a slice and a
crossing of the strip 26 which arcs outwardly from the club user
generally produces a hook. Accordingly, when the golfer sees a
crossing of the strip 26 by the club head, he can attempt to
correct his driving technique and the tendency on his part to swing
the golf club in a path other than the desired path.
A more definite description of the desired path of travel, when
putting, is defined between the strips 26 and 28. As pointed out
above, the spacing between the strips 26 and 28 is preferably about
the length of the club head 29 of a putter club. In practicing
putting, the golfer would attempt to swing the club such that the
club head would remain between the strips 26 and 28 with the club
face being maintained generally parallel to the strips 30. Any
deviation from this path would generally result in a missed putt.
It will be noted, that the strips 30 will also aid the golfer in
gauging the length of his putting swing.
The luminescent material on the shoes of the golfer and the strip
40 aids him in visually observing the position of his feet. Those
skilled in the art will, of course, recognize the necessity of
proper feet positioning when executing a correct golf swing. If
desired, the glove or gloves normally worn by a golfer may also be
provided with luminescent material to aid the golfer in visually
observing the positioning of his hands on the handle of the golf
club.
It will be apparent from the above description, that the golf
practice apparatus provided by the invention may be used in a well
lighted area, and can be also used in an environment substantially
devoid of light with the use of the lamp 32. When used in a
darkened area, only those portions of the apparatus having
luminescent material, in accordance with the invention, can be
visually observed, thus enabling the golfer to concentrate more
effectively on the arc of his swing and the position of his
feet.
* * * * *