U.S. patent application number 09/946611 was filed with the patent office on 2003-03-06 for structure of a baseball.
Invention is credited to Yang, Wen Hsiang.
Application Number | 20030045384 09/946611 |
Document ID | / |
Family ID | 25484728 |
Filed Date | 2003-03-06 |
United States Patent
Application |
20030045384 |
Kind Code |
A1 |
Yang, Wen Hsiang |
March 6, 2003 |
Structure of a baseball
Abstract
A base ball includes a central spherical core made of high
density cork, a plurality of highly elastic rubber layers wound
upon said core, a first layer of blended wool yarns with different
diameters wound upon said rubber layers, a second layer of blended
wool yarns with different diameters wound upon said first layer, a
moisture proof layer of soft foam wound upon said second layer, a
layer of yarns wound upon said moisture proof layer and then
sprayed with adhesive agent, and an outer cover encasing said layer
of yarns, whereby the moisture proof layer of soft foam can
effectively prevent the base ball from getting moisture and can
provide stable resiliency thereby enabling the base ball to keep
its weight and resiliency at a stable condition and therefore
warranting fair play even in bad weather.
Inventors: |
Yang, Wen Hsiang; (Taipei
city, TW) |
Correspondence
Address: |
YANG, Wen Hsiang
P.O. Box 82-144
Taipei
TW
|
Family ID: |
25484728 |
Appl. No.: |
09/946611 |
Filed: |
September 4, 2001 |
Current U.S.
Class: |
473/598 |
Current CPC
Class: |
A63B 2102/18 20151001;
A63B 37/12 20130101; A63B 37/02 20130101 |
Class at
Publication: |
473/598 |
International
Class: |
A63B 037/02; A63B
037/12 |
Claims
I claim:
1. A base ball comprising: a central spherical core made of high
density cork; a plurality of highly elastic rubber layers wound
upon said core; a first layer of blended wool yarns with different
diameters wound upon said rubber layers; a second layer of blended
wool yarns with different diameters wound upon said first layer; a
moisture proof layer of soft foam wound upon said second layer; a
layer of yarns wound upon said moisture proof layer and then
sprayed with adhesive agent; and an outer cover encasing said layer
of yarns.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention is related to an improvement in the structure
of a baseball and in particular to one which is moisture proof and
water proof and stable in resiliency.
[0003] 2. Description of the Prior Art
[0004] Referring to FIG. 1, the conventional baseball generally
includes a central spherical core 10 which is made of high density
cork, a plurality of highly elastic rubber layers wound upon the
core 10, a first layer 11 of blended wool yarns or other yarns with
different diameters wound upon the rubber layers, a second layer 12
of blended wool yarns or other yarns with different diameters wound
upon the first layer 11, a layer 13 of yarns wound upon the second
layer 12 and then sprayed with adhesive agent, and an outer cover
14 encasing the layer 13. However, the first and second layers 11
and 12 can absorb water from the air and so when used in bad
weather, the conventional baseball will absorb water thereby
increasing its weight and when the first and second layers 11 and
12 absorb water, their elasticity will decrease obviously. As a
consequence, the pitcher cannot control the base ball as desired
and the route of the base ball hit by the batter will be
unpredictable hence making it unable to warrant a fair play.
[0005] Therefore, it is an object of the present invention to
provide an improvement in the structure of a baseball the weight of
which can keep stable and will hardly be changed by weather.
SUMMARY OF THE INVENTION
[0006] This invention is related to an improvement in the structure
of a base ball.
[0007] It is the primary object of the present invention to provide
an improved base ball having a moisture proof layer of soft foam
which can effectively prevent the base ball from getting moisture
and can provide stable resiliency thereby enabling the base ball to
keep its weight and resiliency at a stable condition and therefore
warranting fair play even in bad weather.
[0008] According to preferred embodiment of the present invention,
a base ball includes a central spherical core made of high density
cork, a plurality of highly elastic rubber layers wound upon said
core, a first layer of blended wool yarns with different diameters
wound upon said rubber layers, a second layer of blended wool yarns
with different diameters wound upon said first layer, a moisture
proof layer of soft foam wound upon said second layer, a layer of
yarns wound upon said moisture proof layer and then sprayed with
adhesive agent, and an outer cover encasing said layer of
yarns.
[0009] The foregoing object and summary provide only a brief
introduction to the present invention. To fully appreciate these
and other objects of the present invention as well as the invention
itself, all of which will become apparent to those skilled in the
art, the following detailed description of the invention and the
claims should be read in conjunction with the accompanying
drawings. Throughout the specification and drawings identical
reference numerals refer to identical or similar parts.
[0010] Many other advantages and features of the present invention
will become manifest to those versed in the art upon making
reference to the detailed description and the accompanying sheets
of drawings in which a preferred structural embodiment
incorporating the principles of the present invention is shown by
way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a sectional view of a conventional base ball;
and
[0012] FIG. 2 is a sectional view of a base ball according to the
present invention.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
[0013] For the purpose of promoting an understanding of the
principles of the invention, reference will now be made to the
embodiment illustrated in the drawings. Specific language will be
used to describe same. It will, nevertheless, be understood that no
limitation of the scope of the invention is thereby intended,
alterations and further modifications in the illustrated device,
and further applications of the principles of the invention as
illustrated herein being contemplated as would normally occur to
one skilled in the art to which the invention relates.
[0014] With reference to FIG. 2, the base ball according to the
present invention generally comprises a central spherical core 20
which is made of high density cork, a plurality of highly elastic
rubber layers wound upon the core 20, a first layer 30 of blended
wool yarns with different diameters wound upon the rubber layers, a
second layer 40 of blended wool yarns with different diameters
wound upon the first layer 30, a moisture proof layer 70 of soft
foam wound upon the second layer, a layer 50 of yarns wound upon
the moisture proof layer 70 and then sprayed with adhesive agent,
and an outer cover 60 encasing the layer 50 of yarns.
[0015] The major characteristic of the baseball according to the
present invention resides in the moisture proof layer 70 of soft
foam between the second layer 40 of blended wool yarns with
different diameters and the layer 50 of yarns. The moisture proof
layer 70 can effectively prevent the passing of moisture and
therefore keeping the first and second layers 30 and 40 in a dried
condition. As a consequence, the weight and resiliency of the
baseball according to the present invention are relatively stable.
Furthermore, since the moisture proof layer 70 of soft foam is
elastic, the contact time between the baseball and the bat (not
shown) will be increased thereby stabilizing the resilient force of
the baseball. Moreover, as the moisture proof layer 70 of the soft
foam has good toughness and elasticity, it can spread the force to
the whole ball evenly and can return to its original shape
rapidly.
[0016] In conclusion, the moisture proof layer 70 of soft foam
between the second layer 40 of blended wool yarns with different
diameters and the layer 50 of yarns can effectively prevent the
base ball from getting moisture and can provide stable resiliency
thereby enabling the base ball to keep its weight and resiliency at
a stable condition and therefore warranting fair play even in bad
weather.
[0017] It will be understood that each of the elements described
above, or two or more together may also find a useful application
in other types of methods differing from the type described
above.
[0018] While certain novel features of this invention have been
shown and described and are pointed out in the annexed claim, it is
not intended to be limited to the details above, since it will be
understood that various omissions, modifications, substitutions and
changes in the forms and details of the device illustrated and in
its operation can be made by those skilled in the art without
departing in any way from the spirit of the present invention.
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