CA2519416A1 - A sports ball valve - Google Patents
A sports ball valve Download PDFInfo
- Publication number
- CA2519416A1 CA2519416A1 CA002519416A CA2519416A CA2519416A1 CA 2519416 A1 CA2519416 A1 CA 2519416A1 CA 002519416 A CA002519416 A CA 002519416A CA 2519416 A CA2519416 A CA 2519416A CA 2519416 A1 CA2519416 A1 CA 2519416A1
- Authority
- CA
- Canada
- Prior art keywords
- valve
- mounting member
- valve element
- collapsible aperture
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000002955 isolation Methods 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 238000010276 construction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 239000012858 resilient material Substances 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001116389 Aloe Species 0.000 description 1
- 241001674048 Phthiraptera Species 0.000 description 1
- 235000011399 aloe vera Nutrition 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B41/00—Hollow inflatable balls
- A63B41/12—Tools or devices for blowing up or closing balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
- F16K15/202—Check valves specially designed for inflatable bodies, e.g. tyres and with flexible valve member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Check Valves (AREA)
Abstract
The present invention provides a valve (10) comprising a mounting member (12) for mounting of the valve. The valve includes a collapsible aperture (20) which in an open condition allows for flow of a fluid in a forward direction through the valve whilst in a closed condition prevents flow of fluid in a reverse direction. In one form of the valve, the valve element is connected to the mounting member (12) via an isolation zone (22) that reduces likelihood of the collapsible aperture moving to an open condition under impact. In another form of the valve, the valve element is configured to provide opening of the collapsible aperture on application of a predetermined force to the mounting member. In a final form of the valve, the valve comprises a sports ball valve having a collapsible aperture which is opened by fluid pressure alone.
Description
A SPORTS BALL VALVE
FIELD OF THE INVENTION
The present invention relates broadly to a valve and relates particularly, though not exclusively, to a sports ball valve.
BACKGROUND TO THE INVENTION
Figures 1 and 2 show cross-sectional representations of a sports-ball valve 1.
The valve 1 is encased in a casing 2 that is glued or otherwise fixed to an inflatable bladder 3.
The valve 1 includes an axially disposed and throughgoing passageway 4 having an expandable but otherwise normally closed valve port 5.
In operation the inflatable bladder 3 is inflated by a manual pump (not shown) to which an injector 6 is threadably connected 4. The injector 6 is, as best shown in figure 2, pushed through the passageway 4 of the valve 1 so that it penetrates the expandable port 5.
The valve 1 forms a seal about the injector 5 to limit the escape of air during inflation of the bladder 3.
This conventional sports ball valve 1 suffers from at least the following drawbacks:
forcing the injector 6 into the valve passageway 4 and penetration through the expandable port 5 damages the material of the valve 1 resulting in leakage;
FIELD OF THE INVENTION
The present invention relates broadly to a valve and relates particularly, though not exclusively, to a sports ball valve.
BACKGROUND TO THE INVENTION
Figures 1 and 2 show cross-sectional representations of a sports-ball valve 1.
The valve 1 is encased in a casing 2 that is glued or otherwise fixed to an inflatable bladder 3.
The valve 1 includes an axially disposed and throughgoing passageway 4 having an expandable but otherwise normally closed valve port 5.
In operation the inflatable bladder 3 is inflated by a manual pump (not shown) to which an injector 6 is threadably connected 4. The injector 6 is, as best shown in figure 2, pushed through the passageway 4 of the valve 1 so that it penetrates the expandable port 5.
The valve 1 forms a seal about the injector 5 to limit the escape of air during inflation of the bladder 3.
This conventional sports ball valve 1 suffers from at least the following drawbacks:
forcing the injector 6 into the valve passageway 4 and penetration through the expandable port 5 damages the material of the valve 1 resulting in leakage;
2. f~rcing the injector 6 through the valve 1 when the bladder is deflated is known to puncture the opposing side of the bladder rendering it useless;
3. the injector 6 may during this relatively forceful insertion process or during inflation of the bladder 3 be snapped off within the valve 1; and 4. the sports ball cannot be inflated without an injector which may not always be readily available.
PGTIAUZUU~/~uu~~~
Rectived 7 duly 2005 SUMMARY OF THt' INVENTION
In a first aspect, the present invention provides a sports ball valve compri~:
a mounting meu~ber being adapted to provide for c~osmting of the valve; and a valve element coauiected to the mounting member and being of a c~ic~al or frs~sto-conical shape having its reduced diameter portion directed in a forward flow direckion, the valve e>ement including a cotlapa~le aperture located at or adjaaertt the reduced diameter portiorv and which in an open coatditl~ a>lowa for flow of a fluid in the forward direction through the valve whilst in a closed condition the mllaps~ble aperture prevents flow of the fluid irt a reverse direct;on, the mltapsble aperture being opened by the fluid pressure aloe:
wherein the valve is arranged for inflation without penetrating the valve eleaurnt or eollaps~le apertu:e with an injector. .
Advantageotrsrp, the asst avoids damage to the valve el~nt and adjoining components.
Suitably, lice spans ball valve includes an isolation zoo disposed intermediate the mounting member and the valve element and being configured to reduce the likelihood of inadvertent opening of the collaps~ls aperture on application of operational forces to the mounting member. in a prr#erred form of the first aspect of the present invention, the isolation zone a~cludes a peripheral recess at which the cross-sectional area of the valve is reduced. Suitably, the isolation zone is apprv~amately 30 to 80% of the maximum aoss-~ sectional area of the cortical or fmsto-conical-shaped valve element.
In a second aspect, the present invention provides a valve comprising:
a mounting member being adapted to provide Eor mounting of the valve; and a valve element connecfied to the mpunting and being of a conical or frnsto-conical shape having its reduced diameter portion directed in a forward flow direction. the valve element inchidixtg a ~apsible aperture located at or adjactnt the reduced dianneter portion arid which in an open condition allows for flow of a fluid in the forward directioat through the valve whilst ~ a closed condition the collapsz'bble aperture prevents flow of the fluid in a reverse direction, the valve element being connected to the mounding member via an .
isolation zone defined by an annular recess of the valve whid~ is figured to reduce 1125T!?59 IrEAIAU
PC'1'IAU2004/000329 2a ' R«xived 30 June 2005 likelihood of the collaps~le aperture opening under application of external operational forces to the moiatting member.
Suitably, the collapsible aperture of the second aspect of the present invention is arranged to open under fluid pressure alone.
imp Amended Sheet p~~rlnt12oo4loao3x9 Itcccivcd 11 November 2004 . 3 The valve of the second aspect of the present invention may comprise another mounting member, the other mounting member being connected to the mounting member via or<e or more of the isolation zones or additional isolation zones which allow the mounting member and the other mounting member to move substantially independently of each other.
The valve element is preferably at least in part formed from a resilient material.
Suitably, the isolation.zone is more flexible than the valve element. The annular recess may be defined or farmed by a reduction in the cross-sectional area of the valve.
In a preferred form the isolation zone comprises a narrowed neck portion of the valve which joins the rnaunting member and valve element. The cross-sectional area of the valve at the isolation zone is preferably approomately 30 to 8096 of the maximum cross-sectional area of the valve element The isolation zone may be one of two or more isolation zones.
~~ J
The mounting member and other mounting member may be connected m, or arranged for connection to, a mounting surface. lane of the mounting surfaces may be ~nnected to or form part of a first vessel. Arwther of the mounting surfaces may be connected to or form part of a second vessel.
The one or more additional isolation zones may comprise a flexible sleeve that surrounds at least in part the isolation zone of the valve element. The flexible sleeve may comprise a sleeve which is extendable and contracfble in an axial direction.
Yn a third aspect, the present invention provides a valve comprising.
a mounting member being adapted to provide for mounting of the valve; and a valve element connected td the mounting member and including a collapsible aperture which in an open condition allows for Sow of a fluid in a forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the valve element being configured to provide opening of the collapsible aperture on application of a predetermined axial form to the mounting member, Suitably, the valve element of the second and third aspects of the present invention is of a conical or frusto-conical shape having its reduced diameter portion directed in the forward flow direction and the collapsible aperture is located at or adjacent the reduced diameter portion.
The coIIapsi'ble aperture of the second and third aspects of the present invention may be arranged to receive an injector.
nzsrnsg ~~m ~t~
PCTlAU2004lQ80329 Rtceived 1 S duly 2005 The a~wunting mzmber of the second and tlvrd aspects of the present Invention may be connected to. or arranged far connection to, an inflatable bladder.
Suitably. the mounting is either disc-shaped or is the form of a cylinder connected to and coaxial with die dal or Ixu.Sto-a~ni~l shaped valve eleanent.
! 5 Suitably, application of said predetermined axial fos~ee promotes opening of the collapsible apedzue for inflation of the bait. Applkcation of said predetermined axial force to the r~tt~ting rn~atber may promote deflation of the ball.
The a~o~mting is prehrably formed integral with the valve element so that the valve is of s one-piece corsstructiort.
IQ The valve an~aybe farmed predoarinantly of a poly~aneric or ratter material BRIEF DESCRIFi'IOH GE THE FIGURES
In order to achie~re a better tnsderstanding of the nature of the~present inventiar< a preferred ambodfnv:nt of a valve wilt tyow be ilescr~ed, by way of example azlly, with reference to the accompanying drawings which:
15 Figures 1 and 2 8re ctnss-sec~al views of a CotlventionaI sports ball valve;
Figure 3 is a side eIevational, sectional and bottom view of a valve according to one rmbodaa~ent of the invention;
Figure 4 is a ~sectianat view of another etnbodirnent of a valve according to the itiventiari;
20 Figure 5 is an elevationaI, sectional and inverted plan view a~f a furttcer valve according to the invention; .
Figure 6 is art elevational and sectional view of yet another embodiment of a valve of the invention:
1125r1759 Amended Chrrr Figure 7 are schematic cross-sectional and plan views of yet further embodiments of valves according to the invention; and Figure 8 is a sectional, plan and photographic representation of yet another embodiment of a valve according to the invention.
PGTIAUZUU~/~uu~~~
Rectived 7 duly 2005 SUMMARY OF THt' INVENTION
In a first aspect, the present invention provides a sports ball valve compri~:
a mounting meu~ber being adapted to provide for c~osmting of the valve; and a valve element coauiected to the mounting member and being of a c~ic~al or frs~sto-conical shape having its reduced diameter portion directed in a forward flow direckion, the valve e>ement including a cotlapa~le aperture located at or adjaaertt the reduced diameter portiorv and which in an open coatditl~ a>lowa for flow of a fluid in the forward direction through the valve whilst in a closed condition the mllaps~ble aperture prevents flow of the fluid irt a reverse direct;on, the mltapsble aperture being opened by the fluid pressure aloe:
wherein the valve is arranged for inflation without penetrating the valve eleaurnt or eollaps~le apertu:e with an injector. .
Advantageotrsrp, the asst avoids damage to the valve el~nt and adjoining components.
Suitably, lice spans ball valve includes an isolation zoo disposed intermediate the mounting member and the valve element and being configured to reduce the likelihood of inadvertent opening of the collaps~ls aperture on application of operational forces to the mounting member. in a prr#erred form of the first aspect of the present invention, the isolation zone a~cludes a peripheral recess at which the cross-sectional area of the valve is reduced. Suitably, the isolation zone is apprv~amately 30 to 80% of the maximum aoss-~ sectional area of the cortical or fmsto-conical-shaped valve element.
In a second aspect, the present invention provides a valve comprising:
a mounting member being adapted to provide Eor mounting of the valve; and a valve element connecfied to the mpunting and being of a conical or frnsto-conical shape having its reduced diameter portion directed in a forward flow direction. the valve element inchidixtg a ~apsible aperture located at or adjactnt the reduced dianneter portion arid which in an open condition allows for flow of a fluid in the forward directioat through the valve whilst ~ a closed condition the collapsz'bble aperture prevents flow of the fluid in a reverse direction, the valve element being connected to the mounding member via an .
isolation zone defined by an annular recess of the valve whid~ is figured to reduce 1125T!?59 IrEAIAU
PC'1'IAU2004/000329 2a ' R«xived 30 June 2005 likelihood of the collaps~le aperture opening under application of external operational forces to the moiatting member.
Suitably, the collapsible aperture of the second aspect of the present invention is arranged to open under fluid pressure alone.
imp Amended Sheet p~~rlnt12oo4loao3x9 Itcccivcd 11 November 2004 . 3 The valve of the second aspect of the present invention may comprise another mounting member, the other mounting member being connected to the mounting member via or<e or more of the isolation zones or additional isolation zones which allow the mounting member and the other mounting member to move substantially independently of each other.
The valve element is preferably at least in part formed from a resilient material.
Suitably, the isolation.zone is more flexible than the valve element. The annular recess may be defined or farmed by a reduction in the cross-sectional area of the valve.
In a preferred form the isolation zone comprises a narrowed neck portion of the valve which joins the rnaunting member and valve element. The cross-sectional area of the valve at the isolation zone is preferably approomately 30 to 8096 of the maximum cross-sectional area of the valve element The isolation zone may be one of two or more isolation zones.
~~ J
The mounting member and other mounting member may be connected m, or arranged for connection to, a mounting surface. lane of the mounting surfaces may be ~nnected to or form part of a first vessel. Arwther of the mounting surfaces may be connected to or form part of a second vessel.
The one or more additional isolation zones may comprise a flexible sleeve that surrounds at least in part the isolation zone of the valve element. The flexible sleeve may comprise a sleeve which is extendable and contracfble in an axial direction.
Yn a third aspect, the present invention provides a valve comprising.
a mounting member being adapted to provide for mounting of the valve; and a valve element connected td the mounting member and including a collapsible aperture which in an open condition allows for Sow of a fluid in a forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the valve element being configured to provide opening of the collapsible aperture on application of a predetermined axial form to the mounting member, Suitably, the valve element of the second and third aspects of the present invention is of a conical or frusto-conical shape having its reduced diameter portion directed in the forward flow direction and the collapsible aperture is located at or adjacent the reduced diameter portion.
The coIIapsi'ble aperture of the second and third aspects of the present invention may be arranged to receive an injector.
nzsrnsg ~~m ~t~
PCTlAU2004lQ80329 Rtceived 1 S duly 2005 The a~wunting mzmber of the second and tlvrd aspects of the present Invention may be connected to. or arranged far connection to, an inflatable bladder.
Suitably. the mounting is either disc-shaped or is the form of a cylinder connected to and coaxial with die dal or Ixu.Sto-a~ni~l shaped valve eleanent.
! 5 Suitably, application of said predetermined axial fos~ee promotes opening of the collapsible apedzue for inflation of the bait. Applkcation of said predetermined axial force to the r~tt~ting rn~atber may promote deflation of the ball.
The a~o~mting is prehrably formed integral with the valve element so that the valve is of s one-piece corsstructiort.
IQ The valve an~aybe farmed predoarinantly of a poly~aneric or ratter material BRIEF DESCRIFi'IOH GE THE FIGURES
In order to achie~re a better tnsderstanding of the nature of the~present inventiar< a preferred ambodfnv:nt of a valve wilt tyow be ilescr~ed, by way of example azlly, with reference to the accompanying drawings which:
15 Figures 1 and 2 8re ctnss-sec~al views of a CotlventionaI sports ball valve;
Figure 3 is a side eIevational, sectional and bottom view of a valve according to one rmbodaa~ent of the invention;
Figure 4 is a ~sectianat view of another etnbodirnent of a valve according to the itiventiari;
20 Figure 5 is an elevationaI, sectional and inverted plan view a~f a furttcer valve according to the invention; .
Figure 6 is art elevational and sectional view of yet another embodiment of a valve of the invention:
1125r1759 Amended Chrrr Figure 7 are schematic cross-sectional and plan views of yet further embodiments of valves according to the invention; and Figure 8 is a sectional, plan and photographic representation of yet another embodiment of a valve according to the invention.
As shown in figure 3 there is a valve 10 of one embodiment of the invention which according to this particular aspect is designed to be installed in a sports ball (not shown).
This sports ball valve 10 comprises a mounting member designated generally as 12 and a valve element 14.
The mounting member 12 includes a relatively thin disc having an increased wall thickness toward its axis. The mounting member 12 is connected or in this example formed integral with the valve element 14 which is frusto-conical in shape. The valve 10 includes an axially disposed passageway 16 which is throughgoing. The passageway 16 is shaped generally cylindrical at the mounting member 12 and tapers inwardly to form a wedge-shaped portion 18 within the valve element 14. The wedge-shaped portion 18 is then formed continuous with a collapsible and generally rectangular-shaped aperture 20 which extends through the valve element 14 and exits the reduced diameter portion of the cone.
The sports ball valve 10 of this embodiment includes an isolation zone located intermediate the mounting meunber 12 a~.zd the valve element 14. In this particular embodiment the isolation zone comprises a peripheral recess 22 The peripheral recess 22 is generally circular in cross-section and has a cross-sectional area approximately 50%~ of that of the maximum cross-sectional area of the valve element 14. The sports ball valve is as such of a bulbous configuration.
In use, the isolation zone reduces the sensitivity of the collapsible aperture 20 to external operational forces applied to the ball, for example from bouncing, kicking or passing of the sports ball. The collapsible aperture 20 is thus less likely to inadvertently open as a result of these operational forces which result in pressure loss from the sports ball.
The sports ball valve 10 of this embodiment is constructed of a rubber-like material.
The valve 10 is of a one-piece construction and the rubber-like material serves to bias the collapsible aperture 20 into a closed condition.
This sports ball valve 10 comprises a mounting member designated generally as 12 and a valve element 14.
The mounting member 12 includes a relatively thin disc having an increased wall thickness toward its axis. The mounting member 12 is connected or in this example formed integral with the valve element 14 which is frusto-conical in shape. The valve 10 includes an axially disposed passageway 16 which is throughgoing. The passageway 16 is shaped generally cylindrical at the mounting member 12 and tapers inwardly to form a wedge-shaped portion 18 within the valve element 14. The wedge-shaped portion 18 is then formed continuous with a collapsible and generally rectangular-shaped aperture 20 which extends through the valve element 14 and exits the reduced diameter portion of the cone.
The sports ball valve 10 of this embodiment includes an isolation zone located intermediate the mounting meunber 12 a~.zd the valve element 14. In this particular embodiment the isolation zone comprises a peripheral recess 22 The peripheral recess 22 is generally circular in cross-section and has a cross-sectional area approximately 50%~ of that of the maximum cross-sectional area of the valve element 14. The sports ball valve is as such of a bulbous configuration.
In use, the isolation zone reduces the sensitivity of the collapsible aperture 20 to external operational forces applied to the ball, for example from bouncing, kicking or passing of the sports ball. The collapsible aperture 20 is thus less likely to inadvertently open as a result of these operational forces which result in pressure loss from the sports ball.
The sports ball valve 10 of this embodiment is constructed of a rubber-like material.
The valve 10 is of a one-piece construction and the rubber-like material serves to bias the collapsible aperture 20 into a closed condition.
The sports ball valve 10 is fitted to a sports ball or sports ball bladder in a traditional manner where for example it is glued or otherwise adhered to an inner surface of the ball or bladder. The sports ball valve 10 is designed to be used without an injector whereupon the inflating pressure alone of the inflation fluid, most typically air, serves to open the collapsible aperture 20 into its open condition. Otherwise, the collapsible aperture 20 is biased in a normally closed condition. In one example a manual air pump (without an injector) is pressed against the inlet of the passageway 16 and on inflation the inflating fluid which is forced into the passageway 16 expands the collapsible 20 aperture and inflates the sports ball.
Figure 4 shows another embodiment of a sports ball valve 30 of the present invention which is identical to the valve 10 except that it has two isolation zones in form of recesses 32 rather than the recess 22. The valve 30 is therefore less sensitive to external operational forces than the valve 10.
Figure 5 illustrates another embodiment of a valve 36 which is described by reference to the sports ball valve 10 of Figure 3. Likes features of valves 10 and 36 are referred to by common reference numerals. The valve 36 comprises a valve element 14 which is attached to a mounting member 12 via an isolation zone having a peripheral recess 22. The valve 36 also includes another mounting member generally designated as 38 which is connected to the mounting member 12 via additional isolation zones designated generally as 40.
The mounting members 12 and 38 form part of respective inner and outer vessels (not shown).
The isolation zones 40 allow the mounting members 12 and 38 to move a small amount independently of each other to minimise transferral of operational forces between the outer and inner vessels.
Figure 6 shows another embodiment of a valve 46 which is also described by reference to the sports ball valve 10 of Figure 3. Like features of the valve 10 and 46 are referred to by common reference numerals. The valve 46 includes a valve element 14 and mounting member 12 connected via an isolation zone having a peripheral recess 22, as described above in relation to valves 10 and 36. The valve 46 also includes another mounting member generally designated as 48 which is connected to the mounting member 12 via a flexible sleeve in the form of a flexible tube 50. The mounting members 48 and 12 may form part of respective inner and outer vessels as described above in relation to the valve 36. The inner vessel of the valve 46 may for example be a water or fuel tank and the flexible tube 50 may provide access to the tank via an associated outer vessel which may for example comprise a housing of the inner vessel.
Figure 4 shows another embodiment of a sports ball valve 30 of the present invention which is identical to the valve 10 except that it has two isolation zones in form of recesses 32 rather than the recess 22. The valve 30 is therefore less sensitive to external operational forces than the valve 10.
Figure 5 illustrates another embodiment of a valve 36 which is described by reference to the sports ball valve 10 of Figure 3. Likes features of valves 10 and 36 are referred to by common reference numerals. The valve 36 comprises a valve element 14 which is attached to a mounting member 12 via an isolation zone having a peripheral recess 22. The valve 36 also includes another mounting member generally designated as 38 which is connected to the mounting member 12 via additional isolation zones designated generally as 40.
The mounting members 12 and 38 form part of respective inner and outer vessels (not shown).
The isolation zones 40 allow the mounting members 12 and 38 to move a small amount independently of each other to minimise transferral of operational forces between the outer and inner vessels.
Figure 6 shows another embodiment of a valve 46 which is also described by reference to the sports ball valve 10 of Figure 3. Like features of the valve 10 and 46 are referred to by common reference numerals. The valve 46 includes a valve element 14 and mounting member 12 connected via an isolation zone having a peripheral recess 22, as described above in relation to valves 10 and 36. The valve 46 also includes another mounting member generally designated as 48 which is connected to the mounting member 12 via a flexible sleeve in the form of a flexible tube 50. The mounting members 48 and 12 may form part of respective inner and outer vessels as described above in relation to the valve 36. The inner vessel of the valve 46 may for example be a water or fuel tank and the flexible tube 50 may provide access to the tank via an associated outer vessel which may for example comprise a housing of the inner vessel.
As shown in figure 7 there are further examples of a valve such as 70 which are preferably in the form of sports ball valves. These are essentially variants of the sports ball valve 10 of figure 3 but without the isolation zone or periphery recess 22.
The alternate sports ball valves 70 each include a mounting member designated generally as 72 connected to and in this example formed integral with a valve element 74. The mounting member 72 is a disc-shaped member and is connected coaxially with the valve element 74 which is conical in shape. The valves 70 each include a throughgoing and axially located passageway 76.
The passageway 76 includes a cylindrical portion located at the disc-shaped mounting member 72 and extending into the valve element 74 whilst being formed continuous with a collapsible aperture 78. The collapsible aperture 78 exits the conical-shaped valve element 74 at its apex. The collapsible aperture 78 eomprises a single slit. However, the collapsible aperture 78 may comprise multiple slits that intersect at a line which is coaxial with the valve element 74 and exits the valve element 74 at its apex.
The valves ~0 of figure 7 are similarly designed to be inflated relying on the inflating fluid pressure alone without the need for an injector. In a similar manner to the described inflation of the sports ball valve of figure 3, these alternate sports ball valves 20 are inflated by applying the manual inflation pump (or other inflation means) to the sports ball so as to apply sufficient fluid pressure to the passageway ~6 to expand the collapsible aperture 78.
These ball valves ~0 are also designed so that application of a predetermined and axially directed force to the mounting member 72 within a circular region 80 promotes opening of the collapsible aperture ~8. The predetermined force is relatively high and exceeds that which may under normal working conditions be applied to the sports ball when it is bounced, kicked or passed. This application of the predetermined force to the mounting member 72 promotes opening of the collapsible aperture 78 either during°inflation of the sports ball or so as to partly or fully deflate the sports ball.
Figure 8 illustrates another embodiment of a valve 90 which according to this aspect of the invention is designed to be fitted to an inflatable tyre (either tubed or tubeless). The tyre valve 90 is in this example designed to replace a conventional Schrader valve design.
The tyre valve 90 is fitted to a screw-threaded adapter 92 which allows it to be fitted to an existing tyre installation.
The tyre valve 90 is of a one-piece construction and fabricated from a polymer material. The valve 90 includes a mounting member 94 formed integral with a valve element 96. The mounting member 94 is generally cylindrical in shape and includes an inwardly directed flange 98 which engages a complementary-shaped recess 100 within the adapter 92.
The alternate sports ball valves 70 each include a mounting member designated generally as 72 connected to and in this example formed integral with a valve element 74. The mounting member 72 is a disc-shaped member and is connected coaxially with the valve element 74 which is conical in shape. The valves 70 each include a throughgoing and axially located passageway 76.
The passageway 76 includes a cylindrical portion located at the disc-shaped mounting member 72 and extending into the valve element 74 whilst being formed continuous with a collapsible aperture 78. The collapsible aperture 78 exits the conical-shaped valve element 74 at its apex. The collapsible aperture 78 eomprises a single slit. However, the collapsible aperture 78 may comprise multiple slits that intersect at a line which is coaxial with the valve element 74 and exits the valve element 74 at its apex.
The valves ~0 of figure 7 are similarly designed to be inflated relying on the inflating fluid pressure alone without the need for an injector. In a similar manner to the described inflation of the sports ball valve of figure 3, these alternate sports ball valves 20 are inflated by applying the manual inflation pump (or other inflation means) to the sports ball so as to apply sufficient fluid pressure to the passageway ~6 to expand the collapsible aperture 78.
These ball valves ~0 are also designed so that application of a predetermined and axially directed force to the mounting member 72 within a circular region 80 promotes opening of the collapsible aperture ~8. The predetermined force is relatively high and exceeds that which may under normal working conditions be applied to the sports ball when it is bounced, kicked or passed. This application of the predetermined force to the mounting member 72 promotes opening of the collapsible aperture 78 either during°inflation of the sports ball or so as to partly or fully deflate the sports ball.
Figure 8 illustrates another embodiment of a valve 90 which according to this aspect of the invention is designed to be fitted to an inflatable tyre (either tubed or tubeless). The tyre valve 90 is in this example designed to replace a conventional Schrader valve design.
The tyre valve 90 is fitted to a screw-threaded adapter 92 which allows it to be fitted to an existing tyre installation.
The tyre valve 90 is of a one-piece construction and fabricated from a polymer material. The valve 90 includes a mounting member 94 formed integral with a valve element 96. The mounting member 94 is generally cylindrical in shape and includes an inwardly directed flange 98 which engages a complementary-shaped recess 100 within the adapter 92.
The valve element 96 is a relatively thick walled and conically-shaped member having a collapsible and coaxially located aperture 102.
A bike tyre (not illustrated) containing a tube having a threaded valve stem to which the tyre valve 90 is fitted. The tyre is inflated by the introduction of pressurised fluid into the collapsible aperture 102 so as to expand it and inflate the tyre. The adapter 92 includes an inlet port 104 to which inflating fluid pressure is applied for opening of the collapsible aperture 102. The adapter 92 is designed for connection to a standard inflation coupling (not shown) to which a pneumatic air supply is connected. The tyre valve 90 is thus actuated by the inflating fluid pressure alone without the need for an injector.
Now that a preferred embodiment of the present invention has been described in some detail, it will be apparent to those skilled in the art that the valve has at least the following advantages over the admitted prior art:
1. The valve can be actuated or opened relying on the inflating fluid pressure alone and as such an injector is not required;
2. The valve is relatively simply in construction;
3. The valve is designed and configured to reduce leakage or flow in the reverse direction; and 4. The valve can in an alternate construction be deflated or opened by application of a predetermined force to its mounting member.
Those skilled in the art will appreciate that the invention described herein is susceptible to variations and modifications other than those specifically described. For example, the valve need not be of a one-piece construction as described and it may be fabricated from any suitable material depending on the application and working parameters.
The specific shape and configuration of the valve need not be limited to that described and illustrated but rather extends to other configurations which are within the scope of the broadest aspects of the invention.
All such variations and modifications are to be considered within the scope of the present invention the nature of which is to be determined from the foregoing description.
A bike tyre (not illustrated) containing a tube having a threaded valve stem to which the tyre valve 90 is fitted. The tyre is inflated by the introduction of pressurised fluid into the collapsible aperture 102 so as to expand it and inflate the tyre. The adapter 92 includes an inlet port 104 to which inflating fluid pressure is applied for opening of the collapsible aperture 102. The adapter 92 is designed for connection to a standard inflation coupling (not shown) to which a pneumatic air supply is connected. The tyre valve 90 is thus actuated by the inflating fluid pressure alone without the need for an injector.
Now that a preferred embodiment of the present invention has been described in some detail, it will be apparent to those skilled in the art that the valve has at least the following advantages over the admitted prior art:
1. The valve can be actuated or opened relying on the inflating fluid pressure alone and as such an injector is not required;
2. The valve is relatively simply in construction;
3. The valve is designed and configured to reduce leakage or flow in the reverse direction; and 4. The valve can in an alternate construction be deflated or opened by application of a predetermined force to its mounting member.
Those skilled in the art will appreciate that the invention described herein is susceptible to variations and modifications other than those specifically described. For example, the valve need not be of a one-piece construction as described and it may be fabricated from any suitable material depending on the application and working parameters.
The specific shape and configuration of the valve need not be limited to that described and illustrated but rather extends to other configurations which are within the scope of the broadest aspects of the invention.
All such variations and modifications are to be considered within the scope of the present invention the nature of which is to be determined from the foregoing description.
Claims (25)
1. A sports ball valve comprising:
a mounting member being adapted to provide for mounting of the valve; and a valve element connected to the mounting member and being of a conical1 or frusto-conical shape having its reduced diameter portion directed in a forward flow direction, the valve element including a collapsible aperture located at or adjacent the reduced diameter potion and which in an open condition allows for flow of a fluid in the forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the collapsible aperture being opened by the fluid pressure alone wherein the valve is arranged the inflation without penetrating the valve element or collapsible aperture with an injector.
a mounting member being adapted to provide for mounting of the valve; and a valve element connected to the mounting member and being of a conical1 or frusto-conical shape having its reduced diameter portion directed in a forward flow direction, the valve element including a collapsible aperture located at or adjacent the reduced diameter potion and which in an open condition allows for flow of a fluid in the forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the collapsible aperture being opened by the fluid pressure alone wherein the valve is arranged the inflation without penetrating the valve element or collapsible aperture with an injector.
2. A sports ball valve as claimed in claim 1 wherein the valve includes as isolation zone disposed intermediate the mounting member and the valve element and being configured to reduce the likelihood of inadvertent opening of the collapsible aperture on application of operational forces to the mounting member.
3. A sports ball valve as claimed in claim 2 wherein the isolation zone includes a peripheral recess at which the cross-sectional area of the valve is reduced.
4. A sports ball valve as claimed in either claims of 2 or 3 wherein the isolation zone is approximately 30 to 80% of the maximum cross-sectional area of the conical or frusto-conical-shaped valve element.
5. A sports ball valve as claimed in any one of the preceding claims wherein the mounting member is either disc-shaped or in the form of a cylinder connected to and coaxial with the conical or frusto-conical shaped valve element.
6. A valve comprising:
a mounting member being adapted to provide for mounting of the valve; and a valve element connected to the mounting and being of a conical or frusto-conical shape having its reduced diameter portion directed in a forward flow direction, the valve element including a collapsible aperture located at or adjacent the reduced diameter portion and which in an open condition allows for flow of a fluid in the forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the valve element being connected to the mounting member via an isolation zone defined by an annular recess of the valve which is configured to reduce the likelihood of the collapsible aperture opening under application of external operational forces to the mounting member.
a mounting member being adapted to provide for mounting of the valve; and a valve element connected to the mounting and being of a conical or frusto-conical shape having its reduced diameter portion directed in a forward flow direction, the valve element including a collapsible aperture located at or adjacent the reduced diameter portion and which in an open condition allows for flow of a fluid in the forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the valve element being connected to the mounting member via an isolation zone defined by an annular recess of the valve which is configured to reduce the likelihood of the collapsible aperture opening under application of external operational forces to the mounting member.
7. A valve as claimed in claim 6 wherein the collapsible aperture is arranged to open under fluid pressure alone.
8. A valve as claimed in claim 6 when the collapsible aperture is arranged to receive an injector.
9. A valve as claimed in any one of clans 6 to 8 wherein the valve element is at least in part formed from a resilient material.
10. A valve as claimed in claim 9 wherein the isolation zone is more flexible than the valve element.
11. A valve as claimed in any one of claims 6 to 10 wherein the annular recess is defined or formed by a reduction in the cross-sectional area of the valve.
12. A valve as claimed in any one of claims 6 to 11 wherein the isolation zone comprises a narrowed neck portion of the valve which joins the mounting member and the valve element.
13. A valve as claimed in either of claims 11 or 12 wherein the cross-sectional area of the valve at the isolation zone is approximately 30 to 80% of the maximum cross-sectional area of the valve element.
14. A valve as claimed in any one of claims 6 to 13 wherein the isolation zone is one of two or more isolation zones.
15. A valve as claimed in any one of claims 6 to 14 comprising another mounting member, the other mounting member being connected to the mounting member via one ar more of the isolation zones or additional isolation zones which allow the mounting member and other mounting member to move substantially independently of each other.
16. A valve as claimed in claim 15 wherein the mounting member and other mounting member are connected to, or arranged for connection to, a mounting surface.
17. A valve as claimed in claim 16 wherein one of the mounting surfaces is connected to or forms part of a first vessel.
18. A valve as claimed in claim 17 wherein another of the mounting surfaces is connected to or forms past of a second vessel.
19. A valve as claimed in any ore of claim 15 to 18 wherein the one or more additional isolation zones comprise a flexible sleeve that surrounds at least in part the isolation zone of the valve element.
20. A valve as claimed in claim 19 wherein the flexible sleeve comprises a sleeve which is expendable and contractible it an axial direction.
21. A valve comprising:
a mounting member being adapted to provide for mounting of the valve; and a valve element connected to the mounting member and including a collapsible aperture which in an open condition allows for flow of a forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the valve element being configured to provide opening of the collapsible aperture on application of a predetermined axial force to the mounting member.
a mounting member being adapted to provide for mounting of the valve; and a valve element connected to the mounting member and including a collapsible aperture which in an open condition allows for flow of a forward direction through the valve whilst in a closed condition the collapsible aperture prevents flow of the fluid in a reverse direction, the valve element being configured to provide opening of the collapsible aperture on application of a predetermined axial force to the mounting member.
22. A valve as claimed in claim 21 wherein application of the predetermined axial force to the mounting member promotes opening of the collapsible aperture.
23. A valve as claimed in any one of the preceding claims wherein the mounting member is formed integral with the valve element so that the valve is of a one-piece construction.
24. A valve as claimed in any one of claims 21 bo 23 wherein valve element is of a conical or frusto-conical shape having its reduced diameter portion directed is the forward flow direction and the collapsible aperture is located at or adjacent the reduced diameter portion.
25. A valve as claimed in any one of the preceding claims formed predominantly of a polymeric or rubber material.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003901224A AU2003901224A0 (en) | 2003-03-17 | 2003-03-17 | A valve |
| AU2003901224 | 2003-03-17 | ||
| AU2003903713 | 2003-07-18 | ||
| AU2003903713A AU2003903713A0 (en) | 2003-07-18 | 2003-07-18 | A valve |
| PK1113/2003 | 2003-12-22 | ||
| PK111303 | 2003-12-22 | ||
| PCT/AU2004/000329 WO2004083697A1 (en) | 2003-03-17 | 2004-03-17 | A sports ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2519416A1 true CA2519416A1 (en) | 2004-09-30 |
Family
ID=37052557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002519416A Abandoned CA2519416A1 (en) | 2003-03-17 | 2004-03-17 | A sports ball valve |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20060264278A1 (en) |
| EP (1) | EP1611381A4 (en) |
| JP (1) | JP2006520446A (en) |
| KR (1) | KR20050120765A (en) |
| AU (1) | AU2004221791A1 (en) |
| BR (1) | BRPI0408512A (en) |
| CA (1) | CA2519416A1 (en) |
| NZ (1) | NZ542785A (en) |
| WO (1) | WO2004083697A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007012121A1 (en) * | 2005-07-26 | 2007-02-01 | Global Valve Technology Limited | Stressed valve manufacturing method |
| KR100926824B1 (en) * | 2008-10-22 | 2009-11-12 | (주)삼진창호글라스텍 | Coupling for pair glass |
| DE102008058821B4 (en) | 2008-11-25 | 2016-01-21 | Adidas International Marketing B.V. | Ball valve and method of making a ball valve |
| US8672784B2 (en) | 2011-05-04 | 2014-03-18 | Nike, Inc. | Sport ball with an inflation-retention bladder |
| US8771115B2 (en) | 2011-05-04 | 2014-07-08 | Nike, Inc. | Sport ball with an inflation-retention bladder |
Family Cites Families (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US274447A (en) * | 1883-03-20 | William-kentish | ||
| US996588A (en) * | 1909-09-02 | 1911-06-27 | Nat Carbonated Liquid Co | Combined union and check valve. |
| US1756056A (en) * | 1923-07-09 | 1930-04-29 | Joseph E Dorward | Inflatable sport ball |
| US1641382A (en) * | 1925-12-05 | 1927-09-06 | P Goldsmith Sons Company | Valve for playing balls |
| US1630040A (en) * | 1926-01-22 | 1927-05-24 | P Goldsmith Sons Company | Valve |
| US1672905A (en) * | 1927-02-07 | 1928-06-12 | John T Riddell | Fluid-seal air valve |
| GB426786A (en) * | 1934-08-23 | 1935-04-10 | James Benson | Improvements in valves or closures for pneumatic vessels |
| US2071213A (en) * | 1935-02-02 | 1937-02-16 | Ira D Perry | Bladder attachment to valves of inflated articles and the like |
| US2065121A (en) * | 1935-04-19 | 1936-12-22 | Seamless Rubber Company Inc | Valve for inflatable balls |
| US2064695A (en) * | 1935-06-11 | 1936-12-15 | Nathaniel L Foster | Air valve |
| US2183900A (en) * | 1938-01-10 | 1939-12-19 | William J Voit | Inflation valve |
| US2219604A (en) * | 1939-11-20 | 1940-10-29 | George C Trotter | Dispensing device |
| US2295804A (en) * | 1940-11-12 | 1942-09-15 | C B Webb Company | Valve for inflatable articles |
| US2595211A (en) * | 1946-02-20 | 1952-04-29 | Tecalemit Ltd | Valved lubrication nozzle |
| US2521069A (en) * | 1946-04-26 | 1950-09-05 | Tecalemit Ltd | Coupling for lubrication systems |
| US2600862A (en) * | 1947-06-11 | 1952-06-17 | Sun Rubber Co | Inflation valve |
| US2671633A (en) * | 1950-08-15 | 1954-03-09 | William G Corson | Valve for inflatable articles |
| GB713319A (en) * | 1951-07-09 | 1954-08-11 | Tuck & Company Ltd | Improvements in and relating to football bladders, and valve sealing means therein |
| US2644663A (en) * | 1952-04-15 | 1953-07-07 | Roth Rubber Company | One-piece check valve of molded resilient material |
| US2737969A (en) * | 1952-04-16 | 1956-03-13 | Us Rubber Co | Resilient self-sealing and self-lubricating valve for inflatable articles |
| US2731028A (en) * | 1952-08-20 | 1956-01-17 | Us Rubber Co | Valve |
| US2830610A (en) * | 1955-03-09 | 1958-04-15 | Barr Rubber Products Company | Valve for play balls |
| US2841166A (en) * | 1955-12-30 | 1958-07-01 | John M Auzin | Combination valve and plug |
| US3159176A (en) * | 1962-12-07 | 1964-12-01 | Vernay Laboratories | Check-relief valve |
| US3621876A (en) * | 1970-01-19 | 1971-11-23 | Robert K Campbell | Self-sealing chalk valve |
| US3822720A (en) * | 1971-03-04 | 1974-07-09 | Noyce R | Flow control assembly |
| USRE29050E (en) * | 1971-10-29 | 1976-11-30 | Toy with sound producing means | |
| CS159428B1 (en) * | 1972-02-01 | 1975-01-31 | ||
| US3902517A (en) * | 1973-11-27 | 1975-09-02 | Richard Hastwell | Pump and valve assembly for pressurizing fuel tanks for portable stoves, lanterns and the like |
| US3905387A (en) * | 1974-10-03 | 1975-09-16 | Munro M Grant | Needle type inflation valve |
| JPS5165063U (en) * | 1974-11-16 | 1976-05-22 | ||
| US4012041A (en) * | 1975-10-20 | 1977-03-15 | Hoffman Allan C | Game ball repressurizing method |
| US4077429A (en) * | 1976-12-23 | 1978-03-07 | Ronson Corporation | Push-fit inlet valve assembly |
| US4240630A (en) * | 1978-04-10 | 1980-12-23 | Hoffman Allan C | Game ball check valve |
| JPS55101156U (en) * | 1978-12-29 | 1980-07-14 | ||
| US4320776A (en) * | 1979-12-20 | 1982-03-23 | Yang Wen H | Construction of the ball bladder orifice |
| US4340630A (en) * | 1980-04-04 | 1982-07-20 | Doty Francis D | Low conductivity gas sealed building insulation |
| GB2094443B (en) * | 1981-02-11 | 1984-12-19 | Black & Decker | Improvements in or relating to fluid flow control valves |
| US5033498A (en) * | 1990-06-08 | 1991-07-23 | The Schlueter Company | Valve for inflated article |
| US5169241A (en) * | 1991-10-04 | 1992-12-08 | General Electric Company | Squeeze film shaft damper oil system |
| US5261459A (en) * | 1992-12-07 | 1993-11-16 | Vernay Laboratories, Inc. | Miniature duckbill valve having a low cracking pressure and high flow rate |
| USD421791S (en) * | 1997-07-10 | 2000-03-21 | Yamatake-Honeywell Co., Ltd. | Double-seated control valve plug |
| US6200261B1 (en) * | 1998-03-04 | 2001-03-13 | American Medical Systems, Inc. | Valve and methods for urinary control |
| BR0011698A (en) * | 1999-06-15 | 2002-03-05 | Ip One Pty Ltd | Retention valve |
-
2004
- 2004-03-17 US US10/549,806 patent/US20060264278A1/en not_active Abandoned
- 2004-03-17 JP JP2006503966A patent/JP2006520446A/en active Pending
- 2004-03-17 BR BRPI0408512-4A patent/BRPI0408512A/en not_active IP Right Cessation
- 2004-03-17 EP EP04721092A patent/EP1611381A4/en not_active Withdrawn
- 2004-03-17 KR KR1020057017596A patent/KR20050120765A/en not_active Application Discontinuation
- 2004-03-17 NZ NZ542785A patent/NZ542785A/en unknown
- 2004-03-17 WO PCT/AU2004/000329 patent/WO2004083697A1/en active Application Filing
- 2004-03-17 AU AU2004221791A patent/AU2004221791A1/en not_active Abandoned
- 2004-03-17 CA CA002519416A patent/CA2519416A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006520446A (en) | 2006-09-07 |
| US20060264278A1 (en) | 2006-11-23 |
| BRPI0408512A (en) | 2006-03-07 |
| NZ542785A (en) | 2008-04-30 |
| AU2004221791A1 (en) | 2004-09-30 |
| EP1611381A1 (en) | 2006-01-04 |
| EP1611381A4 (en) | 2006-09-20 |
| KR20050120765A (en) | 2005-12-23 |
| WO2004083697A1 (en) | 2004-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |