Dispensing valve and a container for holding fluid provided with such a dispensing valve

Inactive Publication Date: 2008-10-30
AVESTO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]It is an object of the present invention to provide a dispensing valve of the kind as m

Problems solved by technology

One disadvantage of the known dispensing valve is that it has rather complex connecting

Method used

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  • Dispensing valve and a container for holding fluid provided with such a dispensing valve
  • Dispensing valve and a container for holding fluid provided with such a dispensing valve
  • Dispensing valve and a container for holding fluid provided with such a dispensing valve

Examples

Experimental program
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Example

[0036]FIG. 2A shows cross-sectional view of a first embodiment of a dispensing valve 1 according to the invention in closed position. FIG. 2B shows the dispensing valve 1 in open position.

[0037]Dispensing valve 1 comprises a central member 10 that is provided with a flexible membrane 12 having at least one slit 13. A flange 40 surrounds the central member 10 for securing the valve 1 to a container (see FIGS. 1A and 1B) and is connected to the central member 10 by means of a material hinge 15.

[0038]A support 16 for the flexible membrane 12 forms part of the central member 10. In the secured position of the dispensing valve the support 16 is arranged such that it extends inwardly into the container. In the first embodiment shown the support 16 in the closed position extends substantially parallel to the inner wall of the container. The material hinge 15 directly couples the support 16 to the flange 40.

[0039]On the one side the material hinge 15 is located at the upper part of the flan...

Example

[0048]FIG. 3C shows a variant of the second embodiment of FIG. 3A, wherein the groove 24 is located at the top surface of the central member 20.

[0049]Once the fluid in the container is pressurized the central member 20 deforms to its dispensing position shown in FIG. 3B, respectively 3D. The support 26 is then pushed outward and in both embodiments the groove 24 narrows. Once the break through point is reached, the slit 23 opens automatically.

Example

[0050]FIG. 4A shows a cross-sectional view of a third embodiment of a dispensing valve according to the invention in closed position. FIG. 4B shows the dispensing valve of FIG. 4A in open position.

[0051]Dispensing valve 3 is largely similar to dispensing valve 2 described above. All reference numerals in FIGS. 4A and 4B are incremented with 10 when compared to the reference numerals of FIGS. 3A and 3B denoting equal parts.

[0052]In addition to dispensing valve 2 dispensing valve 3 is provided with a third material hinge 37 arranged on the central member 30 between the second material hinge 34 and the center of the flexible membrane 32. In the embodiment shown the hinge 37 lies on the flexible membrane 32 and runs through the slit 33.

[0053]On the central member 30 a further groove 38 is arranged for forming the third material hinge 37. Typically the shape of the groove 38 will be in conformance with the outer circumference of the central member of the valve. Preferably the groove 38 i...

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PUM

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Abstract

The invention relates to a dispensing valve (2) for dispensing fluid from a container, comprising a central member (20) provided with a flexible membrane (22) having at least one slit (23), a flange (40) surrounding the central member for attaching the valve to the container and connecting means for connecting the central member to the flange, which connecting means comprise a material hinge (25). The valve is deformable from a closed position to a dispensing position upon application of pressure to the fluid in the container. The central member is further provided with a support (26) for the flexible membrane, which support is more rigid than the flexible membrane and extends towards the container in the secured position of the dispensing valve, wherein the material hinge directly couples the support to the flange.

Description

TECHNICAL FIELD[0001]The present invention relates to a dispensing valve. Dispensing valves are commonly used for dispensing fluid from a container. Upon application of pressure to the fluid in the container the valve deforms such that it assumes its open or dispensing position and allows fluid to be dispensed from the container. Once the pressure is lifted, the valve automatically retracts to its closed position sealing the container off.BACKGROUND OF THE INVENTION[0002]Dispensing valves improve the ease of use of fluid containers by allowing small quantities of fluid to be dispensed at a time, while leaving the dispensing opening of the container clean of fluid after use. In the closed position dispensing valves provide a reliable seal under all circumstances.[0003]Generally dispensing valves are suitable for use in a wide variety of containers or packages for dispensing all sorts of fluids. The term fluid is used herein to denote any product or medium capable of flowing. A non-li...

Claims

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Application Information

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IPC IPC(8): B65D35/38
CPCB65D47/2031F16K15/147
Inventor NIJLAND, PETER LODEWIJK JOHANNESSCHOLTEN, NIELS
Owner AVESTO TECH
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