U.S. patent number 3,649,028 [Application Number 05/026,328] was granted by the patent office on 1972-03-14 for luminescent golf swing training device.
Invention is credited to Eugene N. Worrell.
United States Patent |
3,649,028 |
Worrell |
March 14, 1972 |
LUMINESCENT GOLF SWING TRAINING DEVICE
Abstract
Golf practicing apparatus characterized in the use of adjacent
strips of luminescent or light-emitting material on the upper
surface of a golf club in a manner such that when the club is swung
through an arc, a visible trace pattern is emitted by the
luminescent or light-emitting material which enables an observer to
make a rapid and accurate determination as to the disposition of
the golf club head throughout its arcuate path of travel. The
pattern comprises three adjacent stripes of outer black stripes and
an intermediate stripe of red. Luminescent reference guide stripes
in the path of travel of the club are also provided one of which
stripes is tangential to the path of travel of the club and the
other of which guide stripes is perpendicular thereto and at a
point of impact of a golf ball. Another form of the invention
includes stripes of a luminescent chemical that are covered with a
cover that is ruptured prior to use so that airborne oxygen reacts
with the chemical to yield a distinctively colored light pattern
when the club is swung through an arc.
Inventors: |
Worrell; Eugene N. (Glenshaw,
PA) |
Family
ID: |
21831201 |
Appl.
No.: |
05/026,328 |
Filed: |
April 7, 1970 |
Current U.S.
Class: |
473/220;
273/DIG.24 |
Current CPC
Class: |
A63B
69/3614 (20130101); Y10S 273/24 (20130101); A63B
2225/76 (20200801) |
Current International
Class: |
A63B
69/36 (20060101); A63b 069/36 () |
Field of
Search: |
;273/183,186,195,196,197,198,56,193,194,163,164 ;250/71 ;35/29 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Marlo; George J.
Claims
I claim as my invention:
1. In the combination of a golf club having a shaft with a head at
the lower end thereof, a striking surface at the forward end of
said shaft and luminescent means associated with said head of said
golf club for permitting visual observation of the movement of said
club head during the execution of a swing of said golf club, the
improvement comprising:
said luminescent means including a plurality of nonspaced adjacent
stripes of luminescent material disposed on the uppermost surface
of said club head with the forwardmost ends of said stripes being
substantially perpendicular to a vertical plane containing at least
the uppermost edge of said striking surface, whereby when the golf
club is swung at an improper angle the nonspaced adjacent stripes
merge and form visible diagonal lines across the movement of travel
of the club head.
2. The combination as specified in claim 1 wherein said luminescent
material includes a light-emitting substance adapted to emit
radiation in the visible range of the spectrum when ultraviolet
radiation is impinged thereon and at least two of said adjacent
stripes emit radiation resulting in at least visibly discernible
hues when said ultraviolet radiation is impinged thereon.
3. The combination as specified in claim 2 wherein said stripes
extend rearwardly from said forwardmost ends in a substantially
straight line.
4. The combination as specified in claim 2 wherein said luminescent
means further includes luminescent material disposed on the
uppermost surface of said club head adjacent said stripes.
5. The combination as specified in claim 1 wherein said luminescent
means comprises a decal secured to said uppermost surface of said
head.
6. The combination of claim 1 wherein said stripes of luminescent
material comprise a gauzelike material impregnated with a substance
which will emit light when exposed to air, said material being
carried within an air-tight transparent enclosure which can be
punctured to admit air such that said substance will emit
light.
7. The combination of claim 6 wherein one surface of said enclosure
is provided with a pressure-sensitive adhesive adapted for
connection to said club head.
8. In combination with a golf club having a shaft with a head at
its lower end, luminescent means associated with said head of the
golf club for permitting visual observation of the movement of said
club head during the execution of a swing of said golf club, said
luminescent means comprising an air-tight transparent enclosure
incorporating means for securing it to said club head, and
gauzelike material carried within said enclosure and impregnated
with a substance which will emit light when exposed to air, said
enclosure being puncturable to admit air and cause said substance
to emit light.
Description
BACKGROUND OF THE INVENTION
Heretofore a variety of swing indicators have been provided for the
purpose of aiding a golfer in correcting his swing, such indicators
commonly being in a form of specially adapted golf clubs or
attachments for standard golf clubs. As an example of the latter
type, reference is made to my copending U.S. application Ser. No.
840,178, filed July 9, 1969 wherein a luminescent material is
disposed on the upper surface of a golf club such that when the
club is swung through a field of ultraviolet radiation, a visible
trace pattern of its arcuate path of travel is produced.
While the above-mentioned application is entirely satisfactory for
the purpose of providing means for visibly observing whether the
club is arcing inwardly or outwardly with respect to a ball, it
does not provide means for rapidly and accurately determining
whether or not the striking face of the club head is square
throughout the swing of the golf club. As will be understood, it is
of vital importance to strike the ball squarely, or otherwise the
ball will slice or hook.
SUMMARY OF THE INVENTION
By use of the present invention which includes a plurality of
adjacent light-emitting stripes disposed on the upper surface of
the golf club, a readily discernible trace pattern is emitted by
such stripes when the golf club is passed through an arc in a
darkened environment. The configuration of the trace pattern will
vary depending on the particular orientation of the club head
during the swing of the golf club and, as such, an observer or the
golfer can readily discern the orientation of the club head merely
by viewing the differing trace patterns.
These and other objects and advantages of this invention will
become readily apparent upon a viewing of the following details and
drawings in which:
FIG. 1 is a diagrammatic view of a golf practice apparatus
embodying the principles of this invention;
FIG. 2 is a partial plan view of the upper surface of the golf club
head shown in FIG. 1 and having thereon luminescent means of this
invention;
FIG. 3 is a schematic illustration of a plan view of a visible
trace pattern emitted by the luminescent means shown in FIG. 2 when
a golf club is swung through an ultraviolet field and the face of
such club is square with respect to the arc of the swing throughout
such swing;
FIG. 4 is a schematic illustration of a plan view of a visible
trace pattern emitted by the luminescent means shown in FIG. 2 when
a golf club is swung through an ultraviolet field and the face of
such club is closed inwardly with respect to the arc of the swing
throughout such swing; and
FIG. 5 is a schematic illustration of a plan view of a visible
trace pattern emitted by the luminescent means shown in FIG. 2 when
a golf club is swung through an ultraviolet field and the face of
such club is open outwardly with respect to the arc of the swing
throughout such swing; and
FIG. 6 is an illustration of an alternative embodiment of the
invention utilizing a light-emitting chemical.
A golf practice apparatus in accordance with one embodiment of the
invention is generally indicated at 10 and comprises: a golf club
12 having a shaft 14 and a club head 16 secured to shaft 14 at the
lower end thereof; luminescent material 18 disposed on the upper
surface of the club head 16 in a manner hereinafter described; and
a lamp 20 which emits ultraviolet radiation for impingement upon
the luminescent material 18 such that when material 18 passes
through an ultraviolet field emitted from lamp 20, a visible trace
pattern is observable which indicates the manner in which the club
head is controlled by the golfer throughout the swing through the
ultraviolet field. It is to be noted that the term "luminescent" as
used herein is to be taken in the broadest sense as meaning adapted
for the production of luminescence, or any emission of light not
ascribable directly to incandescence and as such will include
light-emitting substances, an example of which is described
hereinafter, or materials such as fluorescent or phosphorescent
metallic salts which emit radiation in the visible portion of the
spectrum when radiation is impinged thereon.
The material 18 is disposed on the upper surface of club head 16 in
any suitable manner, for example, an inset containing the
luminescent material or a coating applied directly to club head 16.
However, it is preferred that the material be disposed on the upper
surface of a vinyl or paper decal adapted to be secured to the
upper surface of club head 16. In any event, the material 18 will
be arranged in a pattern of stripes 22 which is adapted to visually
indicate the particular orientation of club head 16 when club 12 is
swung through an ultraviolet field radiated by lamp 20.
Pattern 22 comprises three adjacent stripes 24, 26 and 28,
respectively, having their forwardmost ends positioned
perpendicular to a vertical plane containing at least the upper
edge of the striking surface or face 31 of club head 16, and which
stripes extend axially rearwardly from the face 31. As shown, the
two outer stripes 24 and 26 are black and the interior stripe 28,
which has the longitudinal sides thereof adjacent the respective
inner longitudinal sides of stripes 24 and 26, is red. The balance
of the luminescent material 18 not covered by stripes 24, 26 and 28
is shown as being yellow.
When a pattern 22 as described above is disposed on a golf club 12
and the club 12 swung through the ultraviolet field emitted by lamp
20, a visibly observable trace pattern 30 is emitted by material 18
which enables the golfer or an observer to make an accurate and
efficient analysis of the golf swing. It is to be noted that in
order for the trace pattern 30 to be clearly visible, it is
preferable to use the golf apparatus 10 in a dark room or any other
environment normally considered to have little, if any, lighting
therein. In such an atmosphere, impingement of the ultraviolet
light on the luminescent material will cause it to fluoresce as it
is moved through the ultraviolet field, thereby producing a visible
arcuate trace. Because of the striped pattern on the club head, a
correct swing of the club with the face 31 hitting the ball
correctly will cause an arcuate trace of adjacent arcuate lines
corresponding to the stripes shown in FIG. 2. An incorrect swing
produces a blurred pattern as will be hereinafter explained.
FIG. 3 represents the visible trace pattern 30 emitted by the
luminescent material pattern 22 when a golf club 12 is swung in an
arc and at all times during such swing the stripes 24, 26 and 28
are perpendicular to a transverse plane passing through such arc at
any point therealong. As can be seen when the club head 16 is
positioned throughout the golf swing such that stripes 24, 26 and
28 are perpendicular to the transverse plane as indicated above,
such stripes will produce in the eye of the observer arcuate lines
24', 26' and 28', respectively, and as such one can readily observe
when the club head 16 is held in proper orientation throughout the
golf swing.
FIG. 4 represents a visible trace pattern 30' emitted by the
luminescent material pattern 22 when a golf club 12 is swung in an
arc and at all times during such swing the club head 16 is
improperly turned inwardly toward the body of the golfer and as
such the stripes 24, 26 and 28 are not perpendicular to a
transverse plane passing through such arc. Hence, such stripes are
not represented by independent arcuate lines in trace pattern 30'
but rather the stripes merge and form barely visible diagonal lines
34 across the trace pattern 30'.
FIG. 5 represents a visible trace pattern 30 emitted by the
luminescent material pattern 22 when a golf club 12 is swung in an
arc and at all times during such swing the club head 16 is
improperly turned away from the body of the golfer and as such the
stripes 24, 26 and 28 merge and form barely visible diagonal lines
36 across the trace pattern 30. It is to be noted that the diagonal
extent of line 36 is opposite from the diagonal extend of line 34
and as such one can readily determine not only whether a golfer is
swinging correctly but also whether the club head 16' is turned
inwardly or outwardly.
Additionally shown in the aforedescribed figures are luminescent
guide stripes 40 and 42. Inasmuch as the use of guide stripes such
as stripes 40 and 42 is fully explained in my hereinbefore
mentioned copending application Ser. No. 840,178, it will suffice
to say that stripe 40 extends tangentially to the arc of a swing at
the proposed point of impact with a golf ball and that stripe 42 is
approximately perpendicular to stripe 40 at such point of impact.
The use of such stripes provides accurate referencing means for
observation of the trace pattern emitted by means of this
invention.
In the embodiment of the invention shown in FIG. 2, for example,
the luminescent stripes are provided on a backing having a
pressure-sensitive adhesive for securing it to the club head; and
luminescent material requires the use of an ultraviolet lamp or
other source of radiation. In FIG. 6 an alternative embodiment of
the invention is shown wherein the stripes, such as stripes 24, 26
and 28 are formed from a material which does not require a source
of external radiation, but will give off light due to a chemical
reaction. In this case, each stripe, such as stripe 26 is formed
from a gauze pad 46, impregnated with a chemical which will combine
with oxygen when exposed to air and give off light of a distinctive
color. Such a chemical, for instance is tetrakis
dimethylaminoethylene sold by Remington Arms, Inc. of Bridgeport,
Conn. The gauze pad 46, impregnated with the aforesaid chemical, is
sealed within a plastic enclosure 48 having a pressure-sensitive
adhesive on the lower surface 50 thereof such that it may be
secured to the top of the club head 16. The gauze pad 46 is
normally sealed within the enclosure 48 and will not be exposed to
air. Hence, the chemical it contains will not give off light.
However, when the enclosure 48 is punctured or torn, as with a
sharp instrument or the fingernail, air will enter, a chemical
action will occur, and light will be emitted.
In the use of the device of FIG. 6, it is necessary only to secure
the plastic enclosures 48 containing the chemically impregnated
gauze to the club head by means of the pressure-sensitive adhesive.
Thereafter, the enclosures 48 are punctured to admit air; whereupon
light is emitted from each stripe and the club is ready to use in a
darkened area.
Although a preferred embodiment of this invention has been
described and illustrated herein one can readily apply the
principles of this invention in other forms to obtain the same
operation and advantages without departing from the scope of this
invention, for example; although the embodiment described
hereinabove shows a material 18 having a pattern 22 thereon of a
configuration to be used with a golf club of the wood variety it is
to be understood that a similar material and pattern can be adapted
to be disposed on the upper surface of a golf club of the iron
variety.
The description herein does not limit the structure of this
invention and the invention is defined by the scope of the claims
set forth hereinafter.
* * * * *