U.S. patent number 3,779,551 [Application Number 05/205,994] was granted by the patent office on 1973-12-18 for indicator element for ball bat.
This patent grant is currently assigned to Aluminum Company of America. Invention is credited to Richard C. Wilson.
United States Patent |
3,779,551 |
Wilson |
December 18, 1973 |
**Please see images for:
( Certificate of Correction ) ** |
INDICATOR ELEMENT FOR BALL BAT
Abstract
A tubular bat body having an apertured end closure covering one
end of the bat body. A cover element secured to the end closure.
The cover element having a head disposed generally adjacent the
outer surface of the end closure and a shank extending into the
closure aperture and in contact with the aperture defining surface.
An anchor section formed as an extension of the shank having
shoulder means in locking engagement with the closure inner
surface. The anchor section may have pilot means for facilitating
insertion of the shank into the closure aperture. The cover element
or indicator has means providing information regarding one or more
bat properties. The shank may have a generally web-like
configuration with substantially parallel opposed marginal edges
and stiffener fins may be provided. The anchor section may be
substantially triangular with the base of the triangle serving to
provide locking shoulders and the other sides providing the pilot
surfaces.
Inventors: |
Wilson; Richard C. (Arcadia,
CA) |
Assignee: |
Aluminum Company of America
(Pittsburgh, PA)
|
Family
ID: |
22764539 |
Appl.
No.: |
05/205,994 |
Filed: |
December 10, 1971 |
Current U.S.
Class: |
473/568; 40/668;
473/285 |
Current CPC
Class: |
A63B
60/16 (20151001); A63B 49/08 (20130101); A63B
60/42 (20151001); A63B 59/50 (20151001) |
Current International
Class: |
A63B
49/08 (20060101); A63B 49/02 (20060101); A63b
059/06 () |
Field of
Search: |
;273/32A,68,70,73J,75,81R,162D ;40/22 ;74/551.8,551.9 ;145/61R |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
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|
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251,612 |
|
May 1964 |
|
AU |
|
999,376 |
|
Oct 1951 |
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FR |
|
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Apley; Richard J.
Claims
I claim:
1. A ball bat comprising
a tubular bat body having a barrel portion, a handle portion and a
connecting transition portion,
an apertured end closure covering one end of said tubular bat
body,
said end closure being a portion of an enlarged generally knob-like
end wall of a generally sleeve-like grip member which is disposed
on the handle portion of said bat body,
said end closure having an outer surface, an inner surface and an
aperture defining surface,
a cover element extending into said end closure aperture and
secured to said end closure,
said cover element having a head disposed adjacent said end closure
outer surface and a shank extending into said aperture and being in
contact with said aperture defining surface,
a unitary anchor section formed as an extention of said shank
having shoulder means in locking engagement with said end closure
inner surface,
said anchor section having a portion provided with a greater
transverse width than the transverse width of said shank,
said anchor section having a portion provided with a transverse
width greater than the transverse width of said end closure
aperture,
said anchor section having a lesser transverse width than the
transverse width of said cover element head, and
said anchor section having generally continuous pilot surface means
for facilitating insertion of said shank into said end closure
aperture.
2. The ball bat of claim 1 including
said cover element head having means indicating the length or
weight of said ball bat,
a portion of said end enclosure outer surface adjacent said
aperture being disposed rearwardly with respect to adjacent
portions of said outer surface and cooperating with a portion of
said aperture defining surface to define an outwardly open recess,
and
said cover element head disposed at least partially within said
outwardly open recess.
3. The ball bat of claim 1 including
said cover element having a generally disk-shaped head portion,
said shank having a web-like portion with opposed marginal edges in
contact with said aperture defining surface of said end
closure,
said anchor section shoulder means having a pair of locking
shoulders disposed closely adjacent said shank, and
said anchor section having a pair of pilot surfaces which extend
angularly convergingly from said locking shoulders to the free end
of said anchor section.
4. The ball bat of claim 1 including
said shank being substantially cylindrical,
said anchor section being substantially conical,
said shank having a diameter less than the diameter of the portion
of said conical anchor section disposed closest to it, and
said anchor section having a substantially continuous annular
locking shoulder.
5. A ball bat comprising
a tubular bat body having a barrel portion, a handle portion and a
connecting transition portion,
an apertured end closure covering one end of said tubular bat
body,
said end closure having an outer surface, an inner surface and an
aperture defining surface,
a cover element extending into said end closure aperture and
secured to said end closure,
said cover element having a head disposed adjacent said end closure
outer surface and a shank extending into said aperture and in
contact with said aperture defining surface,
said cover element head having means indicating the length or
weight of said ball bat,
said cover element shank being web-like,
stiffener means disposed on opposite sides of said web-like
shank,
said stiffener means connected to both said shank and said cover
element head,
an anchor section formed as an extension of said shank having
shoulder means in locking engagement with said end closure inner
surface, and
said anchor section having pilot surface means for facilitating
insertion of said shank into said enclosure aperture.
6. The ball bat of claim 5 including
said stiffener means include a stiffener fin disposed on each side
of said web-like shank,
said stiffener fins originating at said cover element head and
extending rearwardly at least to a position adjacent said anchor
section, and
said fins terminating in pilot surfaces which extend angularly
rearwardly and transversely inwardly into said shank.
7. The ball bat of claim 6 including
a numerical indicator formed within the exterior surface of said
cover element head.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to tubular ball bat constructions wherein
independent indicator elements are employed to provide information
regarding bat properties such as bat length or weight.
2. Description of the Prior Art
In one traditional form of ball bat the ball bat is made out of a
suitable wood, such as hickory or ash, and is provided with an
indentation at the end of the handle portion in order to indicate
the length of the bat. As the wooden bat is of solid cross section,
this provides a convenient means of communicating this important
information. The base of the handle is not only a convenient
location for imprinting such information as it will not interfere
with the functioning of the bat, but also it is the portion of the
bat which is most readily viewed when the bat is in a convention
bat rack.
In recent years bats of hollow construction made from tubular
materials, such as metal or plastic, have received growing
acceptance. In the most common form of bat construction employing a
tubular body, the tubular body is provided with end closures at
both the barrel and handle portions. As a result of the nature of
the materials employed in such bats, manufacturers have not been
able to effectively engrave such information into the bat body.
While it would be possible to mold the information into an end
closure, this would necessitate the expense of providing a separate
closure mold for each length and/or weight of the bat to be
produced.
Some consideration has been given to the possibility of printing
the desired indicia of bat length or weight on the bat surface.
Such an approach has been deemed undesirable, however, as the
exposed surfaces are subject to wear and eventually the legend
would be lost. Another approach which has been considered is that
of engraving the desired indicia on a closure which is generally
made of rubber or plastic. Such an approach has been deemed
undesirable as a result of the difficulty in obtaining a clear
impression without effecting undesired melting of the closure.
Also, in connection with rubber, it has been found that the treated
portion tends to remain tacky and portions of the material, which
is generally black, tends to rub off on the hands of the user.
There remains, therefore, a need for marking tubular ball bats with
durably and clearly legible indicia regarding bat properties, while
effecting the same within the economic limitations which a
manufacturer must adhere to in order to produce a competitive
product.
SUMMARY OF THE INVENTION
The present invention has solved the above-described problems by
providing a cover element or indicator element which is adapted for
use with tubular bat bodies. In the structure of this invention an
end closure having an aperture is employed to cover one end of a
tubular bat body. A cover element is secured to the end closure and
contains indicating means for communicationg certain properties of
the ball bat, such as weight or length. The cover element has a
head which is disposed generally adjacent the end closure outer
surface and a shank extending into the end closure aperture and in
contact with the aperture defining surface thereof. An anchor
section is formed as an extension of the shank and has locking
shoulder means in engagement with the closure inner surface in
order to resist relative separating movement between the cover or
indicator element and the end closure. The anchor section has pilot
surface means for facilitating insertion of the shank into the end
closure aperture.
The indicator element preferably has a generally disk-shaped head
portion and web-like shank and anchor sections. The shank
preferably has opposed substantially parallel marginal edges and
stiffener fins oriented generally perpendicularly to the web-like
shank may be provided. The anchor section may have a generally
triangular configuration with the base portion serving to provide
the locking shoulders and the other two sides providing pilot
surfaces for ease of insertion of the indicator element into the
end closure aperture.
It is an object of this invention to provide an indicator element
adapted to be economically employed in presenting readily visible,
durable indicia of certain ball bat properties, such as length
and/or weight.
It is a further object of this invention to provide such a
construction wherein the indicia bearing element may be fabricated
separately from the bat body and bat end closure and may readily be
inserted to establish an effective mechanical joint.
It is a further object of this invention to provide such a
structure wherein the indicia bearing surface is disposed in
non-interfering relationship with respect to the functional
requirements encountered in ordinary ball bat usage.
It is yet another object of this invention to provide a cover
element which is adapted to close the mold opening provided in
certain molded end closures and ball bat grips in order to resist
undesired entry of dirt and other foreign matter into the interior
of the tubular ball bat body.
These and other objects of the invention will be more fully
understood from the following description of the invention, on
reference to the illustrations appended hereto.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an elevational view of one form of ball bat contemplated
by this invention.
FIG. 2 is a bottom plan view of the bat of FIG. 1 showing an
indicator element of this invention in combination with the bat end
closure.
FIG. 3 is a fragmentary cross sectional illustration taken through
3--3 of FIG. 1.
FIG. 4 is a fragmentary cross sectional illustration taken through
4--4 of FIG. 3 showing the indicator element in position.
FIG. 5 is a cross sectional illustration taken through 5--5 of FIG.
3 showing the indicator element in position as viewed from the bat
interior.
FIG. 6 is an elevational illustration of a form of indicator
element of this invention.
FIG. 7 is an elevational view of the indicator element shown in
FIG. 6 with the element rotated 90.degree. with respect to the
position shown in FIG. 6.
FIG. 8 is a bottom plan view of an indicator element of this
invention.
FIG. 9 is a top plan view of an indicator element of this
invention.
FIG. 10 is a cross sectional illustration of an indicator element
of this invention taken through 10--10 of FIG. 9.
FIG. 11 is a cross-sectional illustration of an indicator element
employed with a modified form of an end closure.
FIG. 12 is a front elevational view of a modified form of an
indicator element of this invention.
FIG. 13 is a cross-sectional illustration of the modified form of
an indicator element of FIG. 12 taken through 13--13.
FIG. 14 is a top plan view of the indicator element of FIG. 12.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now more specifically to FIG. 1, there is shown a ball
bat which has a barrel portion 2, a handle portion 4 and a
connecting tapered transition portion 6. The barrel end of the bat
is provided with an end closure 8 and the handle portion of the bat
is provided with a tubular grip 10 which has an integral end
closure 12. An indicator element 16 is secured to the grip 10 at
the end closure 12. While for purposes of simplicity of description
the following discussion will center around the preferred form of
the invention which involves insertion of the indicator element 16
into the end closure 12, it will be appreciated that, should it be
desired, an indicator element may be provided in end closure 8 in
lieu of or in addition to the indicator element 16 which is shown
in end closure 12.
Referring now to FIG. 2, there is shown the undersurface of the
ball bat with the end closure 12 having a centrally disposed,
generally flat panel portion 18 and an annular curved transition
portion 20. The indicator element 16 is provided with a central
recess 22 within which an integrally formed number 24 is
positioned. (In this instance, the number 8 has been shown for
purposes of illustration.) This form of the indicator element 16
illustrates its use in providing information regarding the length
of the bat. While, if one desired, the length could be set forth in
full by placing the number 28 within indicator element 16 to
indicate a bat length of 28 inches, it may be convenient to
establish a code under which the number 8 would refer to a bat
length of 28 inches.
Referring now to FIGS. 3 and 4, there is shown the lower segment of
the tubular ball bat body 30 over which is secured tubular grip
portion 10 which has its lower end closed by end closure 12. In
this form of structure the end closure has a generally centrally
disposed aperture established by aperture defining surface 34. The
end closure has an outer surface 36 and an inner surface 38. With
the aperture defining surface 34 extending from the outer surface
36 to the inner surface 38, the indicator element 16 is secured in
mechanical engagement with respect to the end closure 12 in a
manner which will be discussed more fully below.
Referring to FIGS. 1 through 7, it is seen that the indicator
element 16 has a head portion 40 which, in the form shown, is of
circular disk-like configuration. Extending rearwardly from the
head portion is the shank 44. An anchor section 46 is formed
integrally with the shank 44 and extends rearwardly therefrom. In
the form shown the head portion 40 of indicator element 16 is in
surface to surface engagement with the outer surface of end closure
12. The shank 44 is in engagement with aperture defining surface 34
of end closure 12. The anchor section 46 is in locking engagement
with inner surface 38 of end closure 12. As a result, effective
mechanical interengagement between the indicator element 16 and the
end closure 12 is provided so that undesired relative separation of
these components will be prevented even under the severe shock
loads encountered during normal ball bat usage. In addition, any
indicia of ball bat properties which are provided on the exposed
surface of head portion 40 will be readily visible and yet the
indicator element 16 does not present any physical obstruction to
normal use of the ball bat. In this form, the head portion 40
projects outwardly beyond the closure outer surface 36 by a
distance approximating the thickness of head portion 40. If
desired, an annular portion of the outer surface 36 adjacent the
closure aperture may be positioned rearwardly with respect to
adjacent portions of the outer surface 36 in order to provide a
counterbore in the closure aperture for receipt of the head portion
40. Such a structure is shown in FIG. 11 wherein end closure 12a
has been provided with such a counterbore. The outwardly open
recess defined by the counterbore and an outer portion of the
aperture defining surface 34 serves to receive all or part of head
portion 40 and thereby reduces or eliminates the projection of the
head portion 40 outwardly beyond the closure outer surface 36.
Depending upon the depth of recess, the outer surface of head
portion 40 may be positioned outwardly of, inwardly of or
substantially coplanar with the remainder of outer surface 36. The
use of the expression "adjacent the end closure outer surface" or
words of similar import in reference to the head portion shall
include structures having such a recess in the outer surface 36, as
well as structures of the type shown in FIG. 3 and other forms of
adjacent positioning of the head portion 40.
Referring now to FIGS. 3, 4 and 6, there is shown the shank portion
44, which is preferably substantially rigid, with its outer
marginal edges 50 in engagement with aperture defining surface 34.
In addition, stiffener elements in the form of fins 52 are disposed
substantially perpendicular with respect to shank 44 and have their
outer marginal edges 54 (FIG. 6) in engagement with aperture
defining surface 34. In a preferred form of the invention the
distance between opposed edges 50 and/or opposed edges 54 will be
slightly greater than the aperture diameter in order to provide the
positive resiliently maintained interengagement between the
aperture defining surface 34 and shank portion 44. This contact
between aperture defining surface 34 and edges 50, 52 not only
serves to add some frictional resistance to axial removal of the
indicator element 16, but also provides stability against lateral
displacement of the indicator element 16 with respect to the
aperture in end closure 12.
Referring now to FIG. 5, there is shown the locking engagement as
viewed from the interior of the metal bat body. It is seen that the
anchor section 46 is in overlying contacting relationship with
respect to end closure 12 and thereby provides mechanical
resistance to relative axial separation of the indicator element 16
from the end closure 12. It is also noted that the stiffener fins
52 provide stability against lateral displacement in a direction
perpendicular to that of the anchor section 46 and underlying shank
44.
Referring now to FIGS. 6 through 8, the detailed structural
configuration of a preferred form of the invention will be
considered. As is shown in these figures, the head portion 40
preferably has a generally circular disk-like configuration which
is provided with an outer surface 60 and an inner surface 62.
Projecting rearwardly from the inner surface 62 of head portion 40
is the shank 44. The anchor section 46 is preferably formed
integrally with the shank 44 as an extension thereof and projects
rearwardly therefrom.
Referring now to FIG. 7, it is seen that the shank 44, in the form
shown, has a generally web-like configuration with opposed marginal
edges 50 oriented substantially parallel to each other. The fins
52, which in the form shown are thinner than shank portion 44, are
disposed substantially perpendicular to the shank 44 and have
substantially parallel opposed marginal edges 54. In the preferred
form of the invention the distance between opposed marginal edges
54 of fins 52 is substantially equal to the width of shank 44 as
determined by the distance between opposed marginal edges 50.
Referring once again to FIGS. 6 through 8, it is noted that, in the
form shown, the fins 52 originate at the inner surface 62 of head
portion 40 and extend rearwardly a distance at least one-half the
rearward projection of said shank 44. Preferably the fins 52 extend
rearwardly of a position closely adjacent the anchor section 46.
The fins 52 are connected to both the inner surface 62 and the
shank 44. It is preferred that the free extremity of the fins 52 be
provided with pilot surfaces 74, 76 which are inclined angularly
rearwardly and transversely inwardly. These surfaces 74, 76
facilitate insertion of the shank portion into the aperture in end
closure 12. As used herein, the reference to "pilot surfaces" and
words of similar import shall be deemed to include not only
surfaces which function as guides in a mechanical sense, but also
include edges which function in the same fashion. It will be noted
that in the preferred form of the invention the pilot surfaces are
in fact edges as these provide sufficient guidance while reducing
the frictional resistance to mechanical insertion of the indicator
element 16 into the end closure 12.
Referring now to FIG. 7, the anchor section 46 will be considered
in greater detail. It is noted that the anchor secion 46, in the
form shown, has a substantially triangular configuration. The base
portion of the triangle serves to define locking shoulders 80, 82
which, as is shown in FIG. 3, establish interlocking engagement
with end closure 12. The other two surfaces of the triangular
anchor section 46 provide pilot surfaces 84, 86, which facilitate
introduction of the anchor section 46 into the aperture in end
closure 12. The pilot surfaces 84, 86 preferably extend
continuously from the locking shoulders 80, 82 to the free end 88
of the anchor section 46.
In effecting insertion of the indicator element 16 into the end
closure 12 to establish the structure shown in FIG. 3, the
indicator element 16 is positioned with the free end 88 adjacent
the aperture in closure 12. Relative closing movement is
establsihed in order to cause pilot surfaces 84, 86 to engage outer
surface 36 and aperture defining surface 34. Contact between pilot
surfaces 84, 86 and surfaces 34, 36 creates a centering action
which with continued closing movement causes the indicator element
16 to be inserted into the end closure with the shank 44 in lateral
restraining contact with the aperture defining surface 34 and the
locking shoulders 80, 82 in locking engagement with inner surface
38 to resist relative separating movement between the end closure
12 and the indicator element 16.
Referring now to FIGS. 9 and 10, a preferred form of indicia of bat
properties will be considered. A is shown in these drawings, the
indicator element has an annular raised protective band 96 which
defines a centrally disposed recess 22 in the outer surface 60 of
the head portion 40. Within the recess 22 is disposed a molded
upstanding numeral 24 (which in the form shown is the number 8). It
will be appreciated that this provides a readily visible indication
of the information sought to be communicated with respect to the
bat characteristic in question, which in this instance is the bat
length. The annular band 96 functions as a protective shield to
resist the mechanical damage to the number 24. It will be
appreciated that, if desired, other forms of upstanding indicia may
be employed to communicate the desired information. Also, engraved
numerals or other indicia may be employed in lieu of or in addition
to the upstanding numeral 24. It will further be appreciated that a
color code may be employed to communicate desired information by
providing the desired color on the outer surface 60 of head portion
40. This may readily be accomplished by either manufacturing the
indicator element out of material of the desired color or applying
one or more colors to surface 60.
In another form of the invention, the shank may be provided with a
substantially cylindrical configuration and the anchor section may
be of substantially conical shape. As is shown in FIGS. 12 through
14, the indicator element has a head portion 110, a cylindrical
shank portion 112 and a conical anchor portion 114. This embodiment
is not as advantageous as the preferred embodiment, however, as the
substitution of a pilot surface of substantial dimension in this
embodiment necessitates application of a greater force in order to
effect insertion of the indicator element into the end closure.
Also, this embodiment requires the use of additional material. An
embodiment intermediate this form and the illustrated preferred
form may be provided by employing a shank which has a
longitudinally segmented or fluted surface and an anchor section
having a segmented conical configuration.
The cover or indicator element of this invention may be made from a
wide range of materials such as plastic, rubber or metal. The
indicator elements are preferably molded as a unit in order to
provide for economic fabrication and a unitary strong element which
will provide permanent mechanical retention characteristics and
durable wearing characteristics for the exposed surface.
As it is frequently necessary in manufacturing grip members for
ball bats and other end closures to provide an opening in the end
closure in order to facilitate molding and removal of the rubber or
plastic grip element, the indicator element of this invention
provides another advantage. It may be employed as a cover element
which closes the preformed opening in the grip portion and thereby
resists entry of potentially corrosive soil, moisture and other
undesired foreign materials into the hollow bat interior.
While the head portion 40 of indicator element 16 has been
illustrated as having a disk-like configuration with a circular
periphery and this is a preferred configuration, it will be
appreciated that other configurations may be employed. The head
portion may be provided with an outwardly projecting hemispherical
or cylindrical profile or a rectangular or diamond shaped
periphery, for example. The form illustrated is the preferred form,
however, as it presents an effective marking indicia surface
disposed in noninterfering, but readily visible, position.
While for convenience of illustration the preferred form of the
invention employing a web-like shank 44, a web-like anchor section
46 and a pair of stiffener fins 52 has been shown, it will be
appreciated that should it be desired other shank, anchor and
stiffener configurations may be employed. Multiple shank and anchor
sections, having substantially unitary or divided web-like bodies,
may be employed, for example, and stiffeners in the form of
individual or mulitple stiffening fins, ribs or other profiles may
be employed, so long as the basic structural and functional
requirements of the indicator element as set forth herein are met.
Also, other shank and anchor section configurations which are not
generally web-like may be employed. The form illustrated is the
preferred form, however, in terms of simplicity of design and
fabrication, economy of manufacture, ease of insertion and
durability.
It will, therefore, be appreciated that the present invention
provides an effective means for economically communicating
significant distinguishing information with regard to bat
properties such as length and weight in a readily visible position.
All of this is accomplished by means of a uniquely configurated
indicator element which is adapted to be inserted into an end
closure of the ball bat and retained therein by effective
mechanical interengagement. The marking indicia are readily exposed
at one end of the bat and preferably at the handle end in order to
facilitate reading of the indicia without removing the bat from a
conventional bat rack. All of this is accomplished without
requiring modification of ball bat fabricating techniques, with
assembly being rapidly effected by mere mechanical insertion of the
indicator element into the end closure. Finally, the individual
indicator elements may be economically provided by molding the same
as a unit from a wide range of materials.
Whereas particular embodiments of the invention have been described
above for purposes of illustration, it will be evident to those
skilled in the art that numerous variations of the details may be
made without departing from the invention as defined in the
appended claims.
* * * * *