CA1122578A - Valve for batchwise withdrawing liquid from a container - Google Patents
Valve for batchwise withdrawing liquid from a containerInfo
- Publication number
- CA1122578A CA1122578A CA341,048A CA341048A CA1122578A CA 1122578 A CA1122578 A CA 1122578A CA 341048 A CA341048 A CA 341048A CA 1122578 A CA1122578 A CA 1122578A
- Authority
- CA
- Canada
- Prior art keywords
- valve
- valve stem
- cap
- outlet
- container
- 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.)
- Expired
Links
Landscapes
- Closures For Containers (AREA)
Abstract
Title: Improvements in or relating to a valve for batchwise withdrawing liquid from a container.
ABSTRACT OF THE DISCLOSURE
A valve for batchwise discharging a liquid material from a container having an aperture for the passage of the material. The valve com-prises a valve unit (3) which is an assembly of a valve stem 4 having two spaced collars functioning as valves. The collars are fixedly connected to the valve stem at right angles thereto. The valve stem is supported and guided at points on opposite sides of the valve area, ensuring proper centering during movement of the valve stem.
ABSTRACT OF THE DISCLOSURE
A valve for batchwise discharging a liquid material from a container having an aperture for the passage of the material. The valve com-prises a valve unit (3) which is an assembly of a valve stem 4 having two spaced collars functioning as valves. The collars are fixedly connected to the valve stem at right angles thereto. The valve stem is supported and guided at points on opposite sides of the valve area, ensuring proper centering during movement of the valve stem.
Description
- l~Z2~7~
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This invention relates to a valve for batchwise discharging a li~uid - material from a container having an aperture for the passage of said material, in particular a bottle.
In practice there is a wish for the possibility of ~ithdrawnng dosed quantities of a given liquid material fro~ a container, for example a ~ottle, in which the material :s stored. One example of such a practical case concerns containers filled wnth liguid soap in public la~atories.
Another example concerns containers filled with liquid sha~poo. This example, in p~rticular, clearly illustrates the advantage of having a contai~er with the possibility of applying pre-determined equal doses of shampoo at poi~ts spaced o~er the scalp.
- It is an object of the present invention to provide means for realizing the ~ish described in the preceding paragraph. In addition, there is the condition that the liquid material should only be discharæed from the container at com~and, and that, beyond that, therefore, there should not be any loss of material from leakage.
According to the present invention, there is provided a valve for batch~ise discharging a liquid material from a container having an ~perture for the discharse of said material, in particular a bottle, comprising a cap having a~ axial outlet, ar.d a valve ~nit comprising a valve stem with . _ .. .. . . , . , -- , -- -- , 22sq~
a pair o~ spaced collars fixedly connected to said stem at right angles thereto and functioning as valves, and both located between said axial outl-t ~nd a guide member accessible for the passage of the li~uid material, said guide member having a guide aperture for guiding the movement of said valve stem and a flange suitable for use as a valve seat, and being adapted to be louered into the container aperture for the discharge of the material therein with said ~lange acting as a stop, and a spring supported on said guide ~ember and confined between said guide member and the adjacent collar on said valve stem, which collar can provide a seal against the flange of said guide member and the other of which collars can provide a seal against the rim of said axial outlet.
The Yalve unit according to the present invention can be reg~rded as a double valve with the understanding thS~t the two collars functioning as vælves are fixedly connected to the valve stem. As the places where the valve siem is supported and guided against lateral movement during the openin~ and closing of the re~ulator have been selected on opposite sides of the area of the valves, proper centering of the valve stem movement is permanently ensured, so that the valves wi11 be properly seated on the seats, too~
A preferred embodiment of the invention will now be described~ by way of example, with re~erence to the accompanying dra~ings. In said drawings, Fig. 1 shows a part-sectional elevation of the valve according to the present invention~ mounted on a bottle whicn in the condition shown is secu~ed upside down for ex2mple to a w~ll by means of a bracket, the valve being in a position in which the connection to the bottle is closed and the connection to the outside is open; and . - .. . , , . . - , - - .- . --- . - - - : .. . . -I
~lZ~578 j Fig. 2 shows the valve of Fig. 1, also in section, in a position in ¦ which the connection to the bottle is open and that to the outside is closed.
1 Referring to the drawings, there is shown a bottle 16, ~illed for I example with liquid soap, and suspended upside down from a bracket 17 secured to a wall (not shown) with adhesive or by means of screws.
The neck o~ the bottle has external screwthread on which the valve - according to the present invention is screwed. Tne valve comprises a cap 1 , having internal screwthread for it to be secured to the neck of the bottle ¦ 16. As its botto~, in the condition shown~ cap 1 has an outlet 2.
Designated by 3 is a valve unit comprising a valve stem 4, vollars 5 and 6, guide member 7 and compression spring 9. When the valve unit is made from a synthetic plastics material, the generally better flexibility of such a ~ material can be utilized to advantage for manufacturing the unit as a ¦ sub-assembly by providing valve stem ~ with a number of barbs 15, and ~ sliding first spring 9 and then guide member 7 over them, the barbs pre-I venting member 7 from sliding off stem ~- This procedure facilitates the ! subsequent inst~1lation of the combination on a bottle.
As shown, when valve unit 3 is installed, guide member 7 is lowered into the opening of the bottle neck. In this connection the diameter i of member 7 i~ to be so selected as to avoid undue radial clearance between the inner wall of the bottle neck and the outer wall of the guide i member. Guide member 7 is lowered into the bottle until flange 8 of guide member 7 abuts against the rim of the bottle neck. The inner wall of cap 1 ~ is off-set to form a clamping edge 19, which when C2p 1 is screwed home on to the bottle neck clamps do-~n guide member 7 ~ia flange 8 on the rim of container 16. Outlet 2 in the cap and the aperture 11 in guide member 7 each ha~e a diameter matching the external dia~eter of stem ~, the latter . - . . -- - . . ~ ~ , . . .
7~3 being preferably constant throughout its length, so as to provide a good sliding fit for su~porting and guiding the valve stem during its axial movements.
~ ig. 1 shows valve stem 4 (pushed) upwardly against the action of spring 9 through a distance suf~icient for collar 6 to be sealingly pressed mainly against the inner rim of fl m ge 8. Preferably a sealing ring 13 o~
~lexible material, for example, rubber, is provided on the sealing side o*
collar 6. By virtue of such a sealing ring, no leakage results from minor dimensional imperfections between the inner rim of the flange and collar 6, which in the case of synthetic plastics material can easily arise during the manufacturing process or when the cap is screwed on the bottle neck.
The liquid soap present in the cap cavity can flow away to the outside via the slit at the recess 14 formed in the valve stem, When the pressure on the end of the valve stem is released, spring 9 will expand and force away the stem until sealing ring 12, of a flexible material such as subber, abuts against bottom 10 of cap 1. Bottom 10 is preferably made flat to provide for a contacting sur~ace area as large as possible to promote due sealin,g. Collar 6 is cleared ~rom the rim of flange 8, so that a ~resh quantity of soap can flow from bottle 16 into the cap through per*orations 21 formed in the recessed portion of guide member 7. Pressure e~ualization, required for the inf_ux of soap into the cap, is ensured by means of an aperture made in the bottom o* the bottle by pin m,~mber lô.
Naturally, viariations and modifications of the embodLment of the invention as described and showntherein can be made ~ithout departing from the scope of the invention.
.. . .
, .
.
--`. ' , `
This invention relates to a valve for batchwise discharging a li~uid - material from a container having an aperture for the passage of said material, in particular a bottle.
In practice there is a wish for the possibility of ~ithdrawnng dosed quantities of a given liquid material fro~ a container, for example a ~ottle, in which the material :s stored. One example of such a practical case concerns containers filled wnth liguid soap in public la~atories.
Another example concerns containers filled with liquid sha~poo. This example, in p~rticular, clearly illustrates the advantage of having a contai~er with the possibility of applying pre-determined equal doses of shampoo at poi~ts spaced o~er the scalp.
- It is an object of the present invention to provide means for realizing the ~ish described in the preceding paragraph. In addition, there is the condition that the liquid material should only be discharæed from the container at com~and, and that, beyond that, therefore, there should not be any loss of material from leakage.
According to the present invention, there is provided a valve for batch~ise discharging a liquid material from a container having an ~perture for the discharse of said material, in particular a bottle, comprising a cap having a~ axial outlet, ar.d a valve ~nit comprising a valve stem with . _ .. .. . . , . , -- , -- -- , 22sq~
a pair o~ spaced collars fixedly connected to said stem at right angles thereto and functioning as valves, and both located between said axial outl-t ~nd a guide member accessible for the passage of the li~uid material, said guide member having a guide aperture for guiding the movement of said valve stem and a flange suitable for use as a valve seat, and being adapted to be louered into the container aperture for the discharge of the material therein with said ~lange acting as a stop, and a spring supported on said guide ~ember and confined between said guide member and the adjacent collar on said valve stem, which collar can provide a seal against the flange of said guide member and the other of which collars can provide a seal against the rim of said axial outlet.
The Yalve unit according to the present invention can be reg~rded as a double valve with the understanding thS~t the two collars functioning as vælves are fixedly connected to the valve stem. As the places where the valve siem is supported and guided against lateral movement during the openin~ and closing of the re~ulator have been selected on opposite sides of the area of the valves, proper centering of the valve stem movement is permanently ensured, so that the valves wi11 be properly seated on the seats, too~
A preferred embodiment of the invention will now be described~ by way of example, with re~erence to the accompanying dra~ings. In said drawings, Fig. 1 shows a part-sectional elevation of the valve according to the present invention~ mounted on a bottle whicn in the condition shown is secu~ed upside down for ex2mple to a w~ll by means of a bracket, the valve being in a position in which the connection to the bottle is closed and the connection to the outside is open; and . - .. . , , . . - , - - .- . --- . - - - : .. . . -I
~lZ~578 j Fig. 2 shows the valve of Fig. 1, also in section, in a position in ¦ which the connection to the bottle is open and that to the outside is closed.
1 Referring to the drawings, there is shown a bottle 16, ~illed for I example with liquid soap, and suspended upside down from a bracket 17 secured to a wall (not shown) with adhesive or by means of screws.
The neck o~ the bottle has external screwthread on which the valve - according to the present invention is screwed. Tne valve comprises a cap 1 , having internal screwthread for it to be secured to the neck of the bottle ¦ 16. As its botto~, in the condition shown~ cap 1 has an outlet 2.
Designated by 3 is a valve unit comprising a valve stem 4, vollars 5 and 6, guide member 7 and compression spring 9. When the valve unit is made from a synthetic plastics material, the generally better flexibility of such a ~ material can be utilized to advantage for manufacturing the unit as a ¦ sub-assembly by providing valve stem ~ with a number of barbs 15, and ~ sliding first spring 9 and then guide member 7 over them, the barbs pre-I venting member 7 from sliding off stem ~- This procedure facilitates the ! subsequent inst~1lation of the combination on a bottle.
As shown, when valve unit 3 is installed, guide member 7 is lowered into the opening of the bottle neck. In this connection the diameter i of member 7 i~ to be so selected as to avoid undue radial clearance between the inner wall of the bottle neck and the outer wall of the guide i member. Guide member 7 is lowered into the bottle until flange 8 of guide member 7 abuts against the rim of the bottle neck. The inner wall of cap 1 ~ is off-set to form a clamping edge 19, which when C2p 1 is screwed home on to the bottle neck clamps do-~n guide member 7 ~ia flange 8 on the rim of container 16. Outlet 2 in the cap and the aperture 11 in guide member 7 each ha~e a diameter matching the external dia~eter of stem ~, the latter . - . . -- - . . ~ ~ , . . .
7~3 being preferably constant throughout its length, so as to provide a good sliding fit for su~porting and guiding the valve stem during its axial movements.
~ ig. 1 shows valve stem 4 (pushed) upwardly against the action of spring 9 through a distance suf~icient for collar 6 to be sealingly pressed mainly against the inner rim of fl m ge 8. Preferably a sealing ring 13 o~
~lexible material, for example, rubber, is provided on the sealing side o*
collar 6. By virtue of such a sealing ring, no leakage results from minor dimensional imperfections between the inner rim of the flange and collar 6, which in the case of synthetic plastics material can easily arise during the manufacturing process or when the cap is screwed on the bottle neck.
The liquid soap present in the cap cavity can flow away to the outside via the slit at the recess 14 formed in the valve stem, When the pressure on the end of the valve stem is released, spring 9 will expand and force away the stem until sealing ring 12, of a flexible material such as subber, abuts against bottom 10 of cap 1. Bottom 10 is preferably made flat to provide for a contacting sur~ace area as large as possible to promote due sealin,g. Collar 6 is cleared ~rom the rim of flange 8, so that a ~resh quantity of soap can flow from bottle 16 into the cap through per*orations 21 formed in the recessed portion of guide member 7. Pressure e~ualization, required for the inf_ux of soap into the cap, is ensured by means of an aperture made in the bottom o* the bottle by pin m,~mber lô.
Naturally, viariations and modifications of the embodLment of the invention as described and showntherein can be made ~ithout departing from the scope of the invention.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A container having an axial opening in the lower part thereof, and a valve for discharging liquid therefrom comprising:
a cap having an axial outlet at the lower part thereof, an axially movable valve unit comprising a valve stem and a pair of spaced, outwardly extending collars on said valve stem, a guide member having an axial portion in and in engagement with the axial opening of the container and a portion transverse to said valve stem, a central aperture and a perforation in said transverse portion, means for securing said cap and guide member to said container comprising a rim on said container, a flange on said guide member abutting said rim, and a clamping edge on said cap engaging said guide member flange between said clamping edge and said rim, said valve stem passing through said central aperture and through said outlet in said cap, the diameter of said valve stem matching the diameter of the central aperture and said outlet to provide a sliding fit between said valve stem and the guide and cap during axial movement of the valve stem, said flange on said guide member providing a valve seat for engagement by the upper collar of said valve stem, means on the interior of said cap surrounding said outlet providing a valve seat for engagement by the lower collar of said valve stem, said valve stem having an axially extending recess therein juxtaposition with said outlet of said cap, the axial distance between said collars being less than the axial distance between said valve seat means, and means for urging said valve stem downwardly to seat said lower collar against said valve seat means on said cap.
a cap having an axial outlet at the lower part thereof, an axially movable valve unit comprising a valve stem and a pair of spaced, outwardly extending collars on said valve stem, a guide member having an axial portion in and in engagement with the axial opening of the container and a portion transverse to said valve stem, a central aperture and a perforation in said transverse portion, means for securing said cap and guide member to said container comprising a rim on said container, a flange on said guide member abutting said rim, and a clamping edge on said cap engaging said guide member flange between said clamping edge and said rim, said valve stem passing through said central aperture and through said outlet in said cap, the diameter of said valve stem matching the diameter of the central aperture and said outlet to provide a sliding fit between said valve stem and the guide and cap during axial movement of the valve stem, said flange on said guide member providing a valve seat for engagement by the upper collar of said valve stem, means on the interior of said cap surrounding said outlet providing a valve seat for engagement by the lower collar of said valve stem, said valve stem having an axially extending recess therein juxtaposition with said outlet of said cap, the axial distance between said collars being less than the axial distance between said valve seat means, and means for urging said valve stem downwardly to seat said lower collar against said valve seat means on said cap.
2. The combination of claim 1, and flexible sealing rings on the sealing sides of said collars for engaging said valve seat means.
3. The combination of claim 1, wherein said means fox securing said caps on said container comprises external screwthreads on said container.
4. The combination of claim 1, the aperture and outlet having the same diameter.
5. A container having a neck with an axial opening therethrough in the lower part thereof, and a valve for discharging liquid therefrom, said container neck having a lower rim, and having screwthreads thereon, a guide member having a cylindrical portion in and in engagement with the interior of said neck, a trans-verse portion within said neck, and an outwardly extending flange in engagement with said rim, said transverse portion having a central aperture and a perforation, a cap screwthreaded on said neck and having means thereon for clamping the outer portion of said flange against said rim, said cap having a lower outlet in alignment with said central aperture, an axially movable valve unit comprising a valve stem and a pair of spaced, outwardly extending upper and lower collars thereon, said valve stem extending in said central aperture and said outlet, said lower collar engageable with said cap around said outlet to seat thereon, and said upper collar engageable with the inner portion of said flange to seat thereon.
6. A value for discharging liquid therefrom comprising:
a cap having an axial outlet at the lower part thereof, an axially movable valve unit comprising a valve stem and a pair of spaced, outwardly extending collars on said valve stem, a guide member having an axial portion in and adapted to be in engagement with an axial opening of a container and a portion transverse to said valve stem, a central aperture and a perforation in said transverse portion, means for securing said cap and guide member to a container of the type having a rim thereon, a flange on said guide member abutting said rim, and a clamping edge on said cap engaging said guide member flange between said clamping edge and said rim, said valve stem passing through said central aperture and-through said outlet in said cap, the diameter of said valve stem matching the diameter of the central aperture and said outlet to provide a sliding fit between said valve stem and the guide and cap during axial movement of the valve stem, said flange on said guide member providing a valve seat for engagement by the upper collar of said valve stem, means on the interior of said cap surrounding said outlet providing a valve seat for engagement by the lower collar of said valve stem, said valve stem having an axially extending recess therein juxtaposition with said outlet of said cap, the axial distance between said collars being less than the axial distance between said valve seat means, and means for urging said valve stem downwardly to seat said lower collar against said valve seat means on said cap.
a cap having an axial outlet at the lower part thereof, an axially movable valve unit comprising a valve stem and a pair of spaced, outwardly extending collars on said valve stem, a guide member having an axial portion in and adapted to be in engagement with an axial opening of a container and a portion transverse to said valve stem, a central aperture and a perforation in said transverse portion, means for securing said cap and guide member to a container of the type having a rim thereon, a flange on said guide member abutting said rim, and a clamping edge on said cap engaging said guide member flange between said clamping edge and said rim, said valve stem passing through said central aperture and-through said outlet in said cap, the diameter of said valve stem matching the diameter of the central aperture and said outlet to provide a sliding fit between said valve stem and the guide and cap during axial movement of the valve stem, said flange on said guide member providing a valve seat for engagement by the upper collar of said valve stem, means on the interior of said cap surrounding said outlet providing a valve seat for engagement by the lower collar of said valve stem, said valve stem having an axially extending recess therein juxtaposition with said outlet of said cap, the axial distance between said collars being less than the axial distance between said valve seat means, and means for urging said valve stem downwardly to seat said lower collar against said valve seat means on said cap.
7. The valve of claim 6, further comprising flexible sealing rings on the sealing sides of said collars for engaging said valve seat means.
8. The valve of claim 6, wherein said means for securing said cap and guide member to a container comprises cooperating screwthreads.
9. The valve of claim 6, wherein the aperture and outlet have the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA341,048A CA1122578A (en) | 1979-12-03 | 1979-12-03 | Valve for batchwise withdrawing liquid from a container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA341,048A CA1122578A (en) | 1979-12-03 | 1979-12-03 | Valve for batchwise withdrawing liquid from a container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1122578A true CA1122578A (en) | 1982-04-27 |
Family
ID=4115733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA341,048A Expired CA1122578A (en) | 1979-12-03 | 1979-12-03 | Valve for batchwise withdrawing liquid from a container |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1122578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063494A1 (en) * | 2018-09-27 | 2020-04-02 | 青岛海尔洗衣机有限公司 | Liquid storage container, adapter device, and washing machine |
-
1979
- 1979-12-03 CA CA341,048A patent/CA1122578A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063494A1 (en) * | 2018-09-27 | 2020-04-02 | 青岛海尔洗衣机有限公司 | Liquid storage container, adapter device, and washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |