U.S. patent application number 11/344271 was filed with the patent office on 2007-08-02 for bladder structure of a football.
Invention is credited to Yen-Li Chang.
Application Number | 20070178997 11/344271 |
Document ID | / |
Family ID | 38322804 |
Filed Date | 2007-08-02 |
United States Patent
Application |
20070178997 |
Kind Code |
A1 |
Chang; Yen-Li |
August 2, 2007 |
Bladder structure of a football
Abstract
A football bladder includes an oval body and multiple ribs
formed on an outer periphery of the oval body. After a skin is
attached to the outer periphery of the oval body, protruding strips
are formed on an outer periphery of the skin.
Inventors: |
Chang; Yen-Li; (Taipei,
TW) |
Correspondence
Address: |
APEX JURIS, PLLC;TRACY M HEIMS
LAKE CITY CENTER, SUITE 410
12360 LAKE CITY WAY NORTHEAST
SEATTLE
WA
98125
US
|
Family ID: |
38322804 |
Appl. No.: |
11/344271 |
Filed: |
January 31, 2006 |
Current U.S.
Class: |
473/603 ;
473/609 |
Current CPC
Class: |
A63B 2243/007 20130101;
A63B 41/02 20130101; A63B 43/002 20130101 |
Class at
Publication: |
473/603 ;
473/609 |
International
Class: |
A63B 41/00 20060101
A63B041/00; A63B 39/00 20060101 A63B039/00 |
Claims
1. A football bladder comprising: an oval body; and multiple ribs
formed on an outer periphery of the oval body, whereby after a skin
is attached to the outer periphery of the oval body to enclose the
ribs, multiple protruding strips are formed on an outer periphery
of the skin.
2. The football bladder as claimed in claim 1, wherein the ribs on
two ends of the oval body are annular so as to surround the outer
periphery of the oval body.
3. The football bladder as claimed in claim 2, wherein a void is
defined in a central mediate portion of the oval body so that a
seam is able to be formed on the void after the skin is attached to
the outer periphery of the oval body.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a bladder structure, and
more particularly to a bladder structure of a football.
[0003] 2. Description of the Prior Art
[0004] In order to have a firm grip to a football, beside the
provision of the seam on an outer periphery of the football,
protruding ribs are also formed on the outer periphery of the
football. However, due to frequent friction with the ground
surface, a height of the protruding ribs is gradually reduced,
which results in that the football is ended up in the landfill.
[0005] To overcome the shortcomings, the present invention tends to
provide an improved bladder structure to mitigate the
aforementioned problems.
SUMMARY OF THE INVENTION
[0006] The primary objective of the present invention is to provide
an improved bladder having thereon protruding ribs on an outer
periphery of the bladder such that after the skins are firmly
attached to the bladder, protruding strips are formed on an outer
periphery of the football.
[0007] Another objective of the present invention is that a void is
defined in a mediate portion of the bladder so that after the skins
are attached to the bladder, the seam is able to be formed on the
void.
[0008] Other objects, advantages and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view of the bladder of the present
invention;
[0010] FIG. 2 is a plan view of a football constructed in
accordance with the present invention; and
[0011] FIG. 3 is a schematic cross sectional view of a portion of
the football of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0012] With reference to FIG. 1, it is noted that the bladder in
accordance with the present invention includes an oval body (10)
and a plurality of ribs (11) formed on an outer periphery of the
body (10).
[0013] The ribs (11) on two opposite ends of the body (10) are
annular in shape so that each of the ribs (11) on two ends of the
body (10) surrounds the outer periphery of the body (10). A void
(12) is defined in a central mediate portion of the body (10),
which terminates the continuity of the ribs (11).
[0014] With reference to FIG. 2, it is noted that each rib (11) is
under the skin of the football so that multiple protruding strips
(14) are formed on the football and a seam (not numbered) is formed
on the area where the void (12) is defined.
[0015] With reference to FIG. 3, from the cross sectional view of a
portion of the football, it is seen that after the skin (13) is
attached to the outer periphery of the bladder body, protruding
strips (14) are formed and extended upward from an outer periphery
of the skin (13). Therefore, the football player is able to have a
firm grip to the football by using the protruding strips (14).
Furthermore, because the protruding strips (14) are formed due to
the ribs (11) under the skin (13), friction between the football
and the ground surface does not reduce the height of the ribs (11),
but only the skin (13). Therefore, the life span of the football
lasts a long period of time.
[0016] It is to be understood, however, that even though numerous
characteristics and advantages of the present invention have been
set forth in the foregoing description, together with details of
the structure and function of the invention, the disclosure is
illustrative only, and changes may be made in detail, especially in
matters of shape, size, and arrangement of parts within the
principles of the invention to the full extent indicated by the
broad general meaning of the terms in which the appended claims are
expressed.
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