TW201708062A - Assembly for storing and pouring a liquid and liquid treatment system - Google Patents

Abstract

An assembly includes a container (1) for storing and pouring a liquid, having a base (4) and a closure part (2). The closure part (2) includes a section (11) forming an upper section when the closure part (2) is supported by the container (1) and the container base (4) is placed on a supporting surface. The closure part (2) further includes a section depending from the upper section (11). The closure part (2) is pivotable from a first position to a second position whilst supported by the container (1) by pressing a section (17) of the upper section (11) towards the container (1). The depending section includes a part (20) sealing against an interior side of a wall (6) of the container (1) along at least part of a circumference of the depending part in the first position, so as to allow liquid to be poured from the container (1) on a side of the container (1) opposite a side on which the section (17) of the upper section (11) is arranged only in the second of the first and second positions. The depending section and the interior side of the container wall (6) are provided with a respective member of each of at least one pair of a protrusion (10a, b) and an edge, along which edge the protrusion (10a, b) is movable as the closure part (2) pivots between the first and second positions.

Description

Assembly and liquid handling system for storing and pouring liquid

The present invention relates to an assembly comprising: a container having a base for storing and pouring liquid; and a closure member including a portion forming an upper section when the closure member is supported by the container and the base of the container is placed on the support surface The above-described closure member further includes a section depending from the upper section; wherein the closure member is pivotable from the first position to the second position while pressing a section of the upper section toward the container; and wherein the suspension The section includes a portion that seals against the inner side of the container wall along at least a portion of the perimeter of the overhanging member in the first position to permit only liquid in the second position of the first and second positions in the container It is poured out of the container on the side opposite to the side on which the above section of the upper section is disposed.

The invention also relates to a liquid handling system.

At http://www.tupperware.com/Tupperware-Impressions-2-Qt-Pitcher/dp/B00XD58GPU, which was accessed on June 26, 2015? Class=quickView&field_availability=-1&field_browse=9221895011&i d=Tupperware+Impressions+2-Qt+Pitcher&ie=UTF8&refinementHistory=subjectbin%2Cprice%2Ccolor_map&searchNodeID=9221895011&searchPage=1&searchRank=-product_site_launch_date&searchSize=12 A water tank sold under the name Tupperware Impressions is disclosed. It has a relatively rigid cover and a relatively flexible body. When in the closed position, the sealing rim at the lower end of the lid closes the water tank just below the level of the nozzle.

One problem with known tank structures is that it is difficult to ensure that the lid remains stuck on the tank during use. There is therefore a risk of the closure member popping up from the container when causing the closure member to pivot, particularly when pressed upwards to return it to the first position.

It is an object of the present invention to provide an assembly of the above type that is relatively easy to use.

According to a first aspect of the invention, the object is achieved by an assembly according to the invention, characterized in that the overhanging section and the inner side of the container wall are provided with at least one pair of projections and corresponding members of each of the edges, when closed The protrusion is movable along the edge as the member pivots between the first and second positions.

One or more protrusions do not need to touch the edge as they move along the edge. Thus, while the closure member is pivoting, the edge prevents the closure member from moving away from the base away from the mouth of the container opposite the base. In particular, if the section that is pressed such that the closure member is pivoted to the second position is then pressed away from the container to cause the closure member to pivot back to the first position, the closure member cannot be resisted due to engagement of the sealing member with the container wall Retract by the inside of the container wall. edge Interact with the protrusions to limit this movement.

It is worth noting that USD 445,293 S discloses a water tank with a lid. The cover has a structure depending from the edge that is provided with a projection that is directed toward the container. These protrusions are trapped behind the relatively thick edges of the container. It is not entirely clear whether the cover has an overhanging section that includes an inner side sealing member that abuts against the container wall along at least a portion of the perimeter of the overhanging member in the position shown. Regardless of the above, the cover will be difficult to remove. Typically, the container will be relatively flexible so that it can be squeezed in a direction perpendicular to the direction in which the protrusions are oriented. In known water tanks this will result in the lid being held even more tightly. In contrast, since the overhanging section of the closure member and the inner side of the container wall are provided with respective members of each pair of projections and edges, when the container is squeezed, the projections will move out of the structure defining the edge. This allows the assembly to be used relatively comfortably, in the sense that it is easy to separate the closure member from the container. An additional benefit is that the closure member is relatively easy to make in a single piece, such as by injection molding. Furthermore, the elastic force generated from the engagement between the inner side of the container wall and the sealing member will tend to force the container wall to move toward the overhanging member. It will therefore also tend to keep the base protrusion between the base and the edge, ie caught behind the edge.

One embodiment of the element includes two pairs of protrusions and edges disposed on opposite sides of the interior of the container.

Thus, when the closure member is pivoted, the closure member may not take a skewed position. The closure member remains in place on the opposite side. The pair of protrusions and associated edges are aligned to specifically place the pair of protrusions on a line substantially parallel to the pivot axis of the closure member.

In one embodiment, the container includes a circumference opposite the base The rim of the mouth and the edges of each pair of protrusions and edges are oriented at an angle relative to at least one section of the rim at a corresponding position around the circumference of the container in the first position.

If the upper section of the closure member pivots on the rim, the pair of members provided by the closure member will not move on a line parallel to the level edge. The angled orientation of the edges allows the protrusion to move relatively close to the edge without obstructing the pivotal movement of the closure member.

In one embodiment, the edges of each pair of protrusions and edges are edges of respective grooves for receiving the aforementioned protrusions (e.g., grooves in the curved section of the container wall).

As a way of defining the edge, the groove has an effect that the wall on which the protrusion is provided and the wall in which the groove is provided may be relatively close together. This enhances the function of the sealing member. When the container wall is squeezed in a direction transverse to the pivot axis, the curved section of the container wall that is defined as being convex when viewed from the outside allows the protrusion to exit the groove.

In one embodiment of the assembly, the overhanging sections are provided with protrusions in each pair, and the inner side of the container wall is provided with an edge in each pair.

It is relatively easy to provide a protrusion on the surface of the protrusion compared to the case where the overhanging section is provided with an edge and the inside of the container wall is provided with a protrusion, and the surface of the protrusion will be the outer surface of the side wall of the hanging part.

In one embodiment, the container has an elongated cross section perpendicular to the upright axis, and each pair of protrusions and edges are disposed on the long side of the container.

There is more space for the overhanging section to move in the longitudinal direction when the closure member is pivoted, while the closure component or container does not need to be large Deformation to accommodate changes in position. Thus there can be a large range of motion between the first and second positions so that more liquid can be poured out when the closure member is in the second position.

In one embodiment, each protrusion has a circular outer contour when viewed in a direction opposite to the direction in which it protrudes.

This reduces any resistance to the pivotal movement of the closure member. For example, the protrusions may be cylindrical in shape.

In one embodiment, the sealing member is sealed against at least a majority of the perimeter of the overhanging member against the inner side of the container wall in at least the first position.

Thus the container can be tipped over in many directions without liquid spilling. Furthermore, the closure member is held relatively tightly.

In one embodiment, the container includes a rim surrounding the mouth opposite the base, and at least another section of the upper section includes at least one edge section, the at least one edge section being at least in the first position Placed on at least one section of the rim to support the closure member.

The lower edge thus supports the closure member through the edge section at at least the first position. One protrusion or a plurality of protrusions and associated edges only limit movement away from the base. It is not necessary to provide a separate frame-like projection or other support structure on the container. Furthermore, the pivoting movement can be relatively easily combined with the displacement of the closure member along the edge of the container. The edge section will generally form an overhanging section relative to the overhanging section described above. The overhanging section has a rim facing surface to support the closure member. The overhanging section can thus be inserted through the mouth of the container, wherein the edge section forms a stop in the direction towards the base.

In a variant of this embodiment, the upper section is for orientation The section in which the container is pressed is inclined relative to the other section.

This variant allows the use of containers having edges that lie substantially in one plane. The rim does not necessarily include a downwardly sloping section located below the section to be pressed towards the container. The section for pressing against the container may comprise at least one other section of the edge section, wherein the further one or more sections may contact the rim in the second position to support the closure member. The other one or more sections thus also define the limits of the pivoting movement.

In a variation of the assembly, wherein the container includes a rim that surrounds the mouth opposite the base, and at least another segment of the upper portion includes at least one edge that can be placed over at least one of the rims a segment to support the closure member at least in the first position, the transition portion between the other section and the upper section of the upper section for pressing against the container extending across the mouth of the container when the closure member is supported by the container unit.

Because the transition portion extends across the mouth of the container, the pivot axis also extends across the mouth of the container. It is assumed that the user presses the above-mentioned section of the upper section toward the container at the edge of the container, for example by grasping the thumb of the hand of the container, there is a relative to the steering arm formed by the section to be pressed towards the container. Long working arm. This makes it easier to pour liquid from the container even if the closure member is subjected to relatively large weight.

In a variation of this embodiment, the transition portion comprises a section of the edge section of the upper section, such as a curved section of the edge section of the upper section.

The closure member thus remains supported by the edge segments described above while pivoting. If the section is curved, the pivot axis can move more easily along the edge. It is also easier to displace the closure member along the edge, except when the closure member Movement between the first and second positions also causes it to pivot out.

In an embodiment of the assembly wherein the container comprises a rim surrounding the mouth opposite the base, the upper section includes an edge section, the edge section along the perimeter of the upper section when the closure member is supported by the container At least a majority, for example the entire perimeter, extends above the rim.

The edge section needs to touch the rim along only one or more portions of its length at any one of the discrete components. Regardless of its orientation, the closure will not fall into the container. In addition, the edge sections can help prevent contaminants from entering the container between the closure member and the side walls of the container.

In one embodiment of the assembly, the container includes a nozzle, and the sealing member is positioned at a level between the base and the nozzle in at least a first position.

Since the sealing member is positioned at at least the level between the base and the nozzle in at least the first position, it can close the liquid path to the nozzle. It is not necessary to adapt the shape of the sealing member such that it blocks the nozzle at the level between the nozzle tip and the level at which the nozzle engages the side wall of the container.

In one embodiment of the assembly, the container includes a nozzle and a rim surrounding the mouth of the container opposite the base, and the rim borders the mouth of the nozzle.

The above-described nozzle is placed relatively close to the main portion of the container as compared to a container having a nozzle protruding from the side in the teapot. In the usual case, the nozzle can also be positioned closer to the rim so that the sealing member of the closure member can be placed at a level relatively close to the rim.

In a variation of this embodiment, the nozzle is in the shape of a container lip And the edge section of the above lip is included in the rim.

This places the nozzle closer to the rest of the container described above. The lip is only a section of the upper edge section of the side wall of the container that has a folded or curved shape to allow for pouring. The mouth of the nozzle abuts the mouth of the container.

In one embodiment of the assembly, the container includes a nozzle, and the closure member includes a structure that extends into the nozzle in at least a first position, such as at least one of a post and a web.

The container will typically have only one nozzle. The structure extending into the nozzle described above ensures that the closure member is properly assembled with the container such that the section of the upper section to be pressed against the container is located on the side of the container opposite the side on which the nozzle is positioned.

In one embodiment of the assembly, the container includes a nozzle, and in the first position the upper section of the closure member extends to cover the mouth of the nozzle.

Therefore, it is not necessary to provide a separate cover to prevent contaminants from entering the nozzle and to prevent mixing with the liquid when the liquid is poured out of the container. This makes the assembly suitable for use outdoors and for example associated with drinking liquids. The pivoting movement of the closure member from the first position to the second position both causes the sealing member to move out of engagement with the container wall and cause the extension portion to lift away from the edge of the nozzle.

In embodiments in which the container includes a nozzle, the closure member includes a structure that extends into the nozzle in at least a first position, such as at least one of a post and a web, and the upper portion of the closure member extends in the first position. Covering the mouth of the nozzle, the structure extends from the side wall of the overhanging section to an extension of the mouth of the nozzle.

In this embodiment, the structure enhances the extension, thereby It can be relatively thin in terms of the area it covers. The extension may in particular be a section of the overhanging edge section of the closure member.

In one embodiment of the assembly, the overhanging section is provided with a ridge extending around at least a portion of the perimeter of the overhanging section, wherein at least one section of the ridge forms a sealing member.

The ridge contacts the inner surface of the container wall to form a seal along at least a portion of its length, particularly below any of the nozzles. The closure member is otherwise spaced from the inner surface of the container sidewall to provide a space for the closure member to move between the first and second positions and to allow liquid poured from the container to be in the second position at the container side wall and closed Flow between parts. Typically, the ridge will extend around the entire perimeter of the overhanging section even if it does not contact the inner surface of the container wall to form a seal along its entire length.

In a variant of this embodiment, the ridge is spaced apart from the inner surface of the container wall on one side of the container in at least said second position, the section of the upper section for pressing against the container being located in said container On the side.

This provides ventilation for the container during the pouring process to achieve a smooth flow of liquid. Since the above position is opposite to the nozzle, that is, opposite to the side from which the liquid is poured, the vent hole is not easily filled with liquid.

In one embodiment of the assembly, wherein the overhanging section is provided with a ridge extending around at least a portion of the perimeter of the overhanging section, wherein at least one section of the ridge forms a sealing member, the container is provided At least one protruding portion on the inner surface of the container wall, each protruding portion being associated with a respective section of the ridge on the overhanging section and arranged to pivot from the second position to the first position When inside, snap to the position between the protruding portion and the base Set it down.

The section of the ridge takes position between the base and the associated protruding portion only in the first of the first and second positions. The at least one protruding portion protrudes far enough to engage the ridge on the closure member when the closure member pivots between the first and second positions. It can be specifically held in the engaged position in the first position. Thus, at least one of the projections holds the closure member in the first position to close on at least the side from which the liquid is poured. This will be the side opposite the side of the upper section of the closure member to be pressed against the container, on the side on which it is positioned in use. It will be the same side as the container nozzle (if present). The protruding portion can be positioned below the nozzle and/or adjacent to the nozzle, such as at the level of the lower end of the nozzle or at a level between the nozzle and the base. If there are a plurality of protruding portions, they are arranged symmetrically with respect to a plane passing through the center of the container and perpendicular to the pivot axis. The at least one projection provides a user with a perceptible feedback to signal that the first position has been reached. It should be noted that the pair of protrusions and edges help prevent the engagement between the ridge and the at least one projection from pushing the closure member upwardly from the container.

In an embodiment of the assembly, wherein the overhanging section is provided with a ridge extending around at least a portion of the perimeter of the overhanging section, wherein at least one section forms a sealing member and the container is disposed within the container wall At least one protruding portion on the surface, each protruding portion being associated with a respective section of the ridge on the overhanging section and arranged to snap when the closure member is pivoted from the first position into the second position To the position between the protruding part and the base.

The section of the ridge takes a position between the base and the associated protruding portion only in the second of the first and second positions. When the closure is in The at least one protruding portion protrudes far enough to engage the ridge on the closure member when pivoting between the first and second positions. It can be specifically held in the engaged position in the second position. Thus, at least one of the projections holds the closure member in the second position. The at least one projection will generally be positioned on the same side of the closure member as the section of the upper section of the closure member to be pressed against the container. If there are a plurality of protruding portions, they are arranged symmetrically with respect to a plane passing through the center of the container and perpendicular to the pivot axis. The at least one projection provides a user with a perceptible feedback to signal that the second position has been reached. Likewise, the pair of protrusions and edges help prevent the engagement between the ridge and the at least one projection from pushing the closure member upwardly from the container.

In an embodiment of the assembly, at least one of the container and at least one of the sealing members of the closure member is made of an elastically deformable material.

Thus, at least one of the sealing member and the container more closely resembles the other. The seal is improved. Furthermore, the change in relative position can be accommodated as the closure member moves between the first and second positions. In addition, the closure member is relatively easily removed and placed on the container with one or more protrusions in a suitable position relative to their associated edges.

In a variant, the closure member is stiffer than the container.

Typically, the closure member will have other functions that need to be performed, and the other functions described above require it to maintain the shape and size of the closure member relatively accurately. This requirement can be more easily met if the container is deformed to accommodate changes in the position of the closure member, rather than in other ways. The overhanging section of the closure member will in any case be relatively rigid due to its (closed) shape, which resists compression. In addition, the container surrounds the closure member. In order to make it easy to remove the seal Closed parts should be able to squeeze the container gently.

In one embodiment of the assembly, the closure member and the container are made of the same material. This reduces wear when the two elements are joined to each other.

In one embodiment of the assembly, the closure member is made in one piece, for example as a molded portion.

This allows the closure to be manufactured at a lower cost. In particular, if the closure member is made of a relatively inelastic material, the fact that it is made in one piece does not impair its functionality.

In one embodiment of the assembly, the side wall of the overhanging section is provided with a lug on one side of the closure member on which the section of the upper section for pressing against the container is located.

The lug is used to hold the closure member in the second position. The user does not need to use such a large force to keep it pressed down while pouring the liquid out of the container. At least one of the closure member and the container is deformed to provide an elastic force against a force applied to the closure member via the lug. The closure member is thus held in position between the opposite sides of the container sidewall.

In one embodiment of the assembly, the closure member is configured as a separate member for forming a reservoir of liquid to be treated and maintaining a liquid handling device for processing liquid through the reservoir outlet.

When the separating member is supported by the container in at least the first position, the separating member provides a path for liquid to flow from the reservoir through the liquid handling device and into the container.

A variation of this embodiment also includes a cover for closing the mouth of the reservoir of the separate component described above.

The lid can be used to prevent contaminants from entering the reservoir and/or to prevent liquid from escaping from the reservoir if the container is inverted or only tilted to pour liquid from it.

In a variant, the cover is placed directly onto the separate component. This allows it to pivot with the separate components.

In a variant of this embodiment, wherein the closure member is configured as a separate component, the separation component is used to form a reservoir of liquid to be treated, and to maintain a liquid handling device for treating the liquid passing through the reservoir outlet, and which also Including a cover, the cover can be separated from the separation member.

This allows the hinge to be omitted.

In a variant of this embodiment, wherein the closure member is configured as a separate component, the separation component is used to form a reservoir of liquid to be treated, and to maintain a liquid handling device for treating the liquid passing through the reservoir outlet, and which also A cover is included that includes a lip that extends past and past the edge of the separate component.

Thereby the cover can have a relatively low profile. It does not require a recessed handle and a recessed handle to reduce the volume of the reservoir. It also does not need to have a protruding handle, with a protruding handle that will increase the height of the assembly without increasing its ability to retain liquid.

In a variant of this embodiment, wherein the closure member is configured as a separate component, the separation component is used to form a reservoir of liquid to be treated, and to maintain a liquid handling device for treating the liquid passing through the reservoir outlet, and which also A cover is included, the cover including an overhanging section having an outer surface for engaging the inner surface of the reservoir at the mouth of the reservoir.

This is a relatively simple and effective way of holding the lid to the separate part, for example during the separation of the part to pivot or to pour the liquid out of the container. Do not drop.

In a variation of this embodiment, the assembly comprises at least one of: at least one groove passing through at least one section of the depending section; and at least one groove on one of the following sections, the section That is, the overhanging section, the section of the inner surface of the reservoir at the mouth of the reservoir facing the other overhanging section and the section of the inner surface of the reservoir at the mouth of the reservoir.

This provides ventilation of the reservoir to allow the liquid to be treated to be replaced by air. It should be noted that a combination of slots and adjacent grooves can be used. The slot may further allow for a degree of compression of the overhanging section of the cover.

In an embodiment of the assembly comprising a cover for closing the mouth of the reservoir of the separate component, the cover comprising the overhanging section has an outer surface for engaging the inner surface of the reservoir at the mouth of the reservoir, said cover A cover section from which the overhanging section depends, and the cover section includes a laterally overhanging edge section for placement adjacent the mouth of the reservoir on the edge section of the separation member.

The overhanging section defines how far the overhanging section can or should be pressed into the mouth of the reservoir.

In a variation of this embodiment, the laterally overhanging section further protrudes relative to the overhanging section along a section along the perimeter of the cover and along the remainder of the perimeter of the cover, at a portion along the perimeter of the cover In the segment it extends only to the outer edge of the edge section of the separating member, while in the remainder along the perimeter of the cover it extends only to the edge section of the separating part (for example, in the above section with the upper section) The outer edge of the edge portion of the section on the opposite side on one side thereof.

This allows the lid to be "stripped" to remove it, but with a reduced risk of erecting it in the reservoir during the process. The fulcrum for the stripping action is located at an edge that is suitably remote from the mouth of the reservoir, ie where the overhanging section protrudes further. However, the assembly is not widened anywhere. Where the cover is shaped to the shape of the upper section of the separating member, the most distally projecting section of the laterally extending section will be positioned relative to the highest section of the cover, the highest section of the cover being the user will be able to grasp Hold the cover to remove it from the separation member.

In a variation of the assembly comprising a cover for closing the mouth of the reservoir of the separate component, the cover including the overhanging section has an outer surface for engaging the inner surface of the reservoir at the mouth of the reservoir, The cover includes a cover section from which the overhanging section depends, and the cover section includes a laterally overhanging edge section for placement adjacent the mouth of the reservoir on the edge section of the separate component, said laterally extending section Receiving a recessed portion in the concave portion of the edge portion of the separating member, such as the outer periphery of the edge portion having an asymmetrical shape.

The recessed portion of the edge section has the effect that the cover section of the cover sinks into the separate component in at least some manner, providing a smoother finish and reducing the risk of inadvertent disengagement. Even if the periphery of the reservoir mouth has a symmetrical shape, if the concave portion of the edge portion has an outer periphery of an asymmetrical shape and the outer portion has a correspondingly shaped outer periphery, the cover can only be placed in one orientation to separate On the part.

In a variation of the assembly embodiment, wherein the closure member is configured as a separate member for forming a liquid reservoir to be treated and maintaining a liquid handling device for treating the liquid passing through the reservoir outlet, the separation The component includes a seat for receiving a replaceable liquid handling device.

This allows the use of a liquid treatment medium or device in which the above processing capabilities are exhausted over time or with use.

In a variation of this embodiment, the separating member includes a core seat for receiving a replaceable liquid handling device in the form of a replaceable liquid handling core having a mouth, at least one portion of the liquid handling core The segment can be inserted through the mouth and the core seat includes a sealing surface for engaging a peripheral sealing rim of the liquid handling core described above.

The mouth will generally correspond to the outlet of the reservoir, thereby forcing liquid to exit the reservoir through the replaceable liquid handling core.

In a specific variation thereof, the core seat mouth portion corresponds to the mouth of the core seat chamber for receiving the above-described section of the liquid handling core, the core seat chamber being opposite the at least one side wall and the mouth of the core seat chamber The end wall is defined and the core chamber is provided with at least one liquid permeable outlet.

The outlet can be used to regulate the flow through the liquid handling core. This is useful in the case where the time taken to treat the liquid in the core by the liquid is a degree of liquid treatment. One example is where the core described above includes a liquid treatment medium for treating a liquid in a diffusion process such as adsorption (including ion exchange), and the contact time with the liquid treatment medium determines the degree of treatment.

In a particular variation thereof, the outlet may be defined by a hollow portion of the core seat that projects into the core seat chamber relative to the peripheral portion of the end wall.

The passage is formed in the hollow member and opens to an outlet of the core chamber corresponding to the discharge outlet of the separation member. The level of liquid in the core chamber is maintained as high as providing a hole from the core chamber to the passage. This makes it possible in the above embodiments to use at least the lower section of the core even in the reservoir Keep immersed in the liquid after being emptied. This may be useful where it is desirable to prevent the liquid treatment medium in the core from drying out. This may also be useful where trace amounts of material are provided in the submerged section.

In a specific variation thereof, the side walls of the hollow projection define a passage and are provided with at least one ridge projecting into the passage around the central opening.

The one or more ridges define a cross-sectional area that limits the rate of flow of liquid from the reservoir to the outlet of the core chamber. It or they may also function in terms of the fixed core by engaging a protruding portion that can be inserted into the core in the hollow protruding portion.

In a particular variation thereof, at least two ridge ends are spaced apart in a tangential direction relative to an axis corresponding to the flow direction to allow liquid to pass between them in use.

Thus, even if a central opening around which one or more ridges are disposed is blocked by a portion of the liquid handling core, a portion of the central opening of the liquid handling core remains in place by the liquid handling core, there is also a passage for the liquid, the passage The cross-sectional area is determined by the spacing between the ends of the ridges.

According to another aspect, a liquid handling system in accordance with the present invention includes an assembly and a liquid handling apparatus in accordance with the present invention.

In one embodiment of the liquid handling system, the liquid handling device is a replaceable liquid handling device for placement within a seat that is included in the separate component.

The replaceable liquid handling device remains in a sealed relationship within the core, ensuring that the liquid to be treated is forced to flow through the liquid handling device. Liquid The device can have limited processing power and/or longevity and can be replaced when the liquid handling device is exhausted or when it reaches the end of its life.

In a variation of this embodiment, the replaceable liquid handling device is a replaceable liquid handling core comprising a housing, the housing comprising: at least one liquid permeable window forming a liquid inlet; at least one forming a liquid outlet a liquid permeable window; at least one processing chamber, for example comprising a liquid treatment medium, between the liquid permeable window forming the liquid inlet and the liquid outlet and in fluid communication with the window.

This is a more general embodiment in which, for example, a core can be provided, the core having a processing chamber, the processing chambers having respective different contents. In addition, the chamber is adapted to hold a bed of granular liquid processing media presenting a relatively large effective area for contacting the liquid.

In a specific variation thereof, the housing includes a peripheral sealing rim for engaging a sealing surface of the core seat to fluidly permeable the liquid permeable window forming the liquid inlet to the liquid outlet forming the liquid outlet The window is separated.

The action of placing the core in the core seat causes the sealing rim to engage the sealing surface of the core seat, thereby preventing any flow of liquid through the liquid handling core.

In an embodiment of the liquid handling system, the liquid handling device includes a liquid processing medium for treating the liquid during the diffusion process, such as by adsorption.

For the purposes of the present invention, liquid treatment by adsorption involves treatment of the liquid by ion exchange.

In one embodiment, the liquid handling device comprises a porous liquid pervious A sexual body made of a binding substance, such as a particulate matter.

The body can be included in a replaceable liquid handling core having a housing of the type described above. It can be a major part or even only a part of a self-supporting replaceable liquid handling device. In this case, a housing made of an impermeable material can be dispensed with. One example is a replaceable liquid handling apparatus comprising a porous body made of thermally bonded activated carbon, optionally covered by one or more layers of liquid permeable mesh.

Accordingly, in a variation wherein the liquid handling apparatus comprises a liquid processing medium for treating the liquid during the diffusion process, such as by adsorption, the binding material comprises at least some of the liquid processing medium for treating the liquid during, for example, the diffusion of the adsorption.

1‧‧‧ container

2‧‧‧Separate parts

3‧‧‧ Cover

4‧‧‧ base

5‧‧‧Edge

6‧‧‧ container side wall

7‧‧‧ nozzle

8a, 8b‧‧‧ sidewall sections forming notches

9a, 9b‧‧

10a, 10b‧‧‧ prominence

11‧‧‧Edge section

12‧‧‧ Sidewalls of separate parts

13‧‧‧Axis of the separation component

14‧‧‧ Covering the edge section of the nozzle

15a, 15b‧‧‧ adjacent to the edge section of the nozzle

16a, 16b‧‧‧ transitional section

17‧‧‧Sloping edge section

18‧‧‧ lugs

19‧‧‧ web

20‧‧‧ Sealing parts

21‧‧‧Section of sealing parts

22a, 22b‧‧‧ first ridge

23‧‧‧second ridge

24‧‧‧Liquid treatment core

25‧‧‧Container-shaped core housing parts

26‧‧‧Cap-shaped cartridge housing parts

27‧‧‧ core sealing edge

28‧‧‧ sealing surface

29a-29d‧‧‧Liquid-permeable window forming a liquid inlet

30a, 30b‧‧‧ Liquid permeable windows forming a liquid outlet

31‧‧‧ core shell end wall

32‧‧‧ recess

33‧‧‧core protrusion

34‧‧‧beads

35‧‧‧ core compartment side wall

36‧‧‧ core chamber end wall

37‧‧‧ hollow protruding parts

38‧‧‧The ridge on the protruding part

39‧‧‧ Covered section of the cover

40‧‧‧Overhanging section of the cover

41‧‧‧ interrupt section

42‧‧‧ Covered lips

43‧‧‧ Covering the first section of the section

44‧‧‧Bend transition section

45‧‧‧inclined section of the covered section

46‧‧‧ recessed parts

47‧‧‧Ventilation groove

The invention will now be explained in more detail with reference to the accompanying drawings in which: Figure 1 is a front plan view of an assembly for forming a liquid handling system comprising a container in which a separate component covered by a lid is suspended, Wherein the container is made transparent to show the separate part; Figure 2 is a perspective view of the container; Figure 3 is a cross-sectional view of the container showing the container nozzle when viewed from the inside of the container; Figure 4 is another cross section of the container a view showing a wall section opposite the nozzle when viewed from the inside of the container; FIG. 5 is a perspective view of the separating member; FIG. 6 is a detailed view of the lug on the separating member; Figure 7 is a plan view of the separating member; Figure 8 is a perspective view of the bottom side of the separating member; Figure 9 is a bottom view of the separating member; Figure 10 is a perspective cross-sectional view of the separating member, for receiving a replaceable liquid The core of the core is treated; Figure 11 is a plan cross-sectional view of the separate component; Figure 12 is a cross-sectional view of a suitable replaceable liquid handling core; Figure 13 is a perspective view of the cover; and Figure 14 is a perspective view of the bottom side of the cover Figure.

The liquid handling system includes a vessel 1 (Figs. 1-4) for receiving and pouring the treated liquid, a separation component 2 and a lid 3 (Figs. 13, 14). Here, it will be assumed that the liquid handling system is a system for treating an aqueous liquid such as water. The liquid handling system shown is a gravity driven liquid handling system.

The container 1 (Figs. 1-4) has a base 4 for placing the container onto the support surface. It has a mouth surrounded by a rim 5 at the end opposite the base 4. The rim 5 lies substantially in a plane such that it is substantially straight when viewed from the side in plan view. The side wall 6 extends from the base 4 to the rim 5. The container 1 is formed with a nozzle 7. The mouth of the nozzle 7 abuts the mouth of the container 1 and is bordered by a section of the rim 5. The nozzle 7 takes the form of a lip integral with the side wall 6. The upper edge of the lip is included in the rim 5.

The container 1 has an elongated cross section transverse to a central upright axis extending from the base to the mouth. The nozzle 7 is located at one longitudinal end. The container 1 is symmetrical with respect to a plane passing through the upright axis and the longitudinal axis.

The container 1 can be made of plastic, such as polypropylene or styrene acrylonitrile (SAN). It is relatively flexible because it can be squeezed by the user, at least without the separation member 2. In contrast, the separation member 2, which may also be made of polypropylene or styrene acrylonitrile, is relatively hard. This is useful because it includes parts that need to be manufactured within relatively tight tolerances and should retain their shape. In general, in order to prevent wear when the container 1 and the separating member 2 are joined to each other, they should be made of the same material.

In the illustrated embodiment, the container 1 does not have a separate handle. This ensures that the user's hand is relatively close to the body of the container 1 when held in the hand. In order to provide more grip on the container 1, the container side wall 6 is provided with sections 8a, 8b which form a notch on both sides. Therefore, a separate handle is not necessary.

The guide grooves 9a, 9b (Figs. 2, 4) are disposed on the inner side of the side wall 6, at a level between the base portion 4 and the rim 5. The guide grooves 9a, 9b extend mainly in the longitudinal direction, but at least their upper edges are at a small angle with respect to at least one section of the rim 5 at a corresponding position around the circumference of the container 1. These edges are used to hold the projections 10a, 10b (Figs. 5-8) provided on the outer surface of the separating member 2, and the above-mentioned projections 10a, 10b can be received in the guide grooves 9a, 9b. The relatively flexible nature of the container sidewall 6 allows the protrusions 10a, 10b to be inserted and removed when the separation members 2 are placed within and removed from the mouth of the container 1, respectively.

The separating member 2 comprises an upper section and an overhanging section. It can be supported by the container 1 through the upper section. In the illustrated embodiment, the upper section includes an overhanging edge section 11 that extends beyond the rim 5. In the illustrated embodiment, the edge section 11 extends along the periphery of the separating member 2. The edge section 11 can be placed on the edge 5 to support the separation member 2. The overhanging section includes a side wall 12 that projects relative to the side wall 12 and that engages the side wall 12.

It can define the axis 13 of the separating member 2 (Fig. 7). Similar to the container 1, the separating member 2 has a substantially elongated cross section perpendicular to the axis 13. The edge section 11 has a section 14 for covering the mouth of the nozzle 7 for the opposite sections 15a, 15b placed on the rim 5 in the first position of the separating part 2, opposite the transition sections 16a, 16b And a section 17 which is inclined in the first position relative to the aforementioned edge sections 15a, 15b for placement on the rim 5. The inclined section 17 has a surface facing the rim 5 which lies substantially in one plane in use. The inclined section 17 is inclined such that the axial distance between the rim 5 and the surface of the inclined section 17 facing the rim 5 increases in the first position away from the sections 15a, 15b resting on the rim 5. The inclined section 17 can thus be pressed down towards the rim 5 towards the container 1 such that the separating part 2 is pivoted under the second position, wherein in the second position the separating part is also supported by the container 1. The edge section 11 is displaced along the rim 5 during the process such that the contact point corresponding to the aforementioned pivot axis moves along the rim 5 during the process. These contact points also move along the curved transition sections 16a, 16b. In both the first and second positions, the section of the upper section of the separating part 2 that extends between the transition sections 16a, 16b extends across the mouth of the container 1. Thus, the pivot axis also extends across the mouth, as opposed to being positioned at the rim 5. The edges of the guide grooves 9a, 9b allow the projections 10a, 10b to move while preventing the separation member 2 from being unintentionally ejected from the container 1 during pivoting.

Since the separating member 2 is relatively rigid compared to the container 1, the container 1 (especially the side wall 6 of the container) is elastically deformable to accommodate the separating member 2 in the second position.

When the separating member 2 is pivoted under the second position, the lug 18 (Fig. 6) on the side wall 12 presses the separating member 2 toward the nozzle 7. The lug 18 also overcomes the relative spring force exerted by the side wall 6 of the container while holding the separating member 2 in place under the second position.

The web 19 (Figs. 7, 8) extends from the side wall 12 to a section 14 of the edge section 11 that covers the mouth of the nozzle 7 in a first position. The web 19 ensures that the separating member 2 can only be placed such that the lugs 18 are located on opposite sides of the container 1 opposite the side on which the nozzles 7 are located. It also enhances the section 14 of the edge section 11 that covers the mouth of the nozzle 7 in the first position.

The inclined section 17 of the edge section 11 extends above the rim 5 and beyond the rim 5 so that it can also be pressed away from the container 1 in order to release the separating part 2 from the second position. Also, the edges of the guide grooves 9a, 9b allow the projections 10a, 10b to move while preventing the separation member 2 from being unintentionally ejected from the container 1.

The sealing member 20 in the form of a peripheral ridge on the side wall 12 is arranged to seal against the inner side of the container side wall 6 along at least a majority of its perimeter in the first position. This includes at least one section of the sealing member 20 at the level between the base 4 and the end of the nozzle 7 closest to the base 4. In the illustrated embodiment, the sealing member 20 is integral with the separating member 2. In an alternate embodiment, it can be co-molded with the remainder of the separation member 2 and made of a more flexible material. In the illustrated embodiment, the ridges are generally flat in shape. In an alternative embodiment, it may have a more round cross section, for example shaped like a bead.

The outer edge of the ridge forming the sealing member 20 is shaped to conform to the inner side of the container side wall 6, except for the section 21 (Fig. 9), the above section 21 is located on the same side as the inclined section 17 of the upper section. The section 21 is separated from the inner surface of the container side wall 6 in at least the second position described above to allow air to pass therethrough. This ventilation causes the liquid to flow relatively smoothly when dumped from the container 1. Depending on the flexibility of the container side wall 6 and the sealing member 20, the section 21 can be effectively sealed against the inner surface of the container side wall 6 in the first position, such that between the base 4 and the end of the nozzle 7 closest to the base 4. The level provides a seal along the entire length of the sealing member 20.

In the second position, at least one section of the sealing member 20 on the opposite side of the inclined section 17 of the edge section 11 is situated at a level between the edge 5 and the end of the nozzle 7 closest to the base 4. Allow liquid to pour out of the container. In view of the fact that the container side wall 6 is inclined outward toward the rim 5, even in the absence of the nozzle 7, the sealing member 20 is spaced apart from the inner surface of the container side wall 6.

In the illustrated embodiment, the sealing member 20 also mates with first and second ridges 22a, 22b, 23 (Figs. 3, 4) disposed on the inner surface of the container sidewall 6. The first ridges 22a, 22b (Fig. 3) are disposed adjacent to the nozzle 7 at a level corresponding to the end of the nozzle 7 closest to the base 4. The first ridges 22a, 22b are arranged symmetrically with respect to the nozzle 7 such that they are also arranged symmetrically with respect to the symmetrical upright plane of the container 1. When the separating member 2 is pivoted down to the first position, the sealing member 20 snaps behind the first ridges 22a, 22b. This gives the user a signal that the container 1 has been properly closed. The signal does not have to be audible, but it will be felt by the user.

The second ridge 23 (Fig. 4) is located on the opposite side of the interior of the container 1 opposite the nozzle 7. When the separating member 2 is moved to the second position, the dense The sealing member 20 is snapped to the rear of the second ridge 23. This is a clear signal that liquid can be poured out of the container 1.

The separating member 2 defines a core seat (Figs. 10, 11) and includes an end section forming a core seat chamber for receiving a liquid in the form of a replaceable liquid handling core 24 (Fig. 9) Processing device. The core seat includes a mouth formed at the bottom of one section of the separation member 2 to form a reservoir of liquid to be treated. The housing of the core 24 includes a container-shaped portion 25 that is coupled to the hat-shaped member 26, which together define a chamber for holding a liquid treatment medium. The peripheral core sealing rim 27 has an outer contour that conforms to the periphery of the core seat mouth and is arranged to mate with the sealing surface 28 when the core 24 is properly placed within the core seat. The sealing edge 27 of the core separates the liquid permeable window 29a-d forming the liquid inlet from the liquid permeable window 30a, 30b forming the liquid outlet when sealingly engaged with the mating sealing surface. Therefore, the liquid is forced to exit the reservoir through the core 24. It enters through a liquid permeable window 29a-d, which in this example is formed as a hat member 26. The liquid exits through the liquid permeable windows 30a, 30b, in which case the liquid permeable windows 30a, 30b are formed in the end wall 31 forming the base of the core 24. On its path through the core 24, the liquid contacts the liquid treatment medium disposed in the chamber formed by the cap member 26 and the container member 25 described above.

The liquid treatment medium can include a liquid treatment medium for treating the liquid during the diffusion process, such as a medium that removes or adds components to the liquid. In particular, the medium can include a liquid treatment medium for treating the liquid by adsorption, which includes ion exchange, adsorption, and absorption for the purposes of the present invention. The above medium may include activated carbon. They may include ion exchange resins such as cation exchange trees fat. The cation exchange resin may include a hydrogen type cation exchange resin. In a specific embodiment, most of the ion exchange resin is hydrogen type. A few may be initially loaded with an alkali metal counterion such as potassium or sodium. In order to utilize the available volume more efficiently, the above cation exchange resin may be a weakly acidic cation exchange resin. The liquid treatment medium will typically be at least partially in particulate form. Core 24 may comprise a thermally bonded liquid treatment medium, such as a thermally bonded particulate liquid treatment medium. Suitable binders include polyethylene, especially ultra high density polyethylene.

The core end wall 31 includes a recess 32 (visible from the outside) with a hollow core protrusion 33 disposed in the recess. The core protrusion 33 protrudes from the wall section at the end of the recess 32 opposite to the mouth of the recess 32. The core protrusion is completely housed in the recess 32. The core protrusion 33 has a substantially cylindrical shape, but is provided with a bead portion 34 which forms a fixing means on the outer surface. The core protrusion is also interrupted at its free end to allow it to be slightly compressed.

The core housing chamber (Figs. 10, 11) is formed by the core housing chamber side wall 35 and the core seat chamber end wall 36. Both are integral parts of the separating part 2. The liquid outlet extends through the core seat chamber end wall 36. In the illustrated embodiment, it is defined by a hollow portion 37 that projects into the core housing chamber relative to the peripheral portion of the core seat chamber end wall 36. In this embodiment, the hollow projection 37 is integral with the core chamber end wall 36.

When the core 24 is placed within the core seat, the hollow projection 37 is open at the free end to receive the core protrusion 33. The hollow projection 37 defines a passage and is provided with a ridge 38 that projects into a passage around the central opening, wherein the ridge surrounds the central opening. The ends of the ridges are spaced apart in a tangential direction with respect to the axis 13 of the separating member, which in this example is in the direction of flow alignment. Even when the protrusion 33 of the core 24 occupies a central opening surrounded by the ridge 38, the separation allows liquid to pass between the ends of the ridge 38.

The bead 34 snaps behind the ridge 38 to axially retain the core 24 in place and counteracts the forces acting on the sealing rim 27 of the core 24 when the core 24 is in place.

During use, the reservoir of liquid to be treated is above the core seat, which is closed by the lid 3. The cover 3 only cooperates with the separating part 2, the cover 3 only enclosing the reservoir, so that the cover 3 can pivot with the separating part 2. The lid 3 will relatively close the reservoir formed by the separating member 2. When the separation member 2 is pivoted or liquid is poured out of the container 1, while still untreated liquid is still in the reservoir, this will generally prevent liquid from sloshing beyond the edge portion 11. However, as a further precaution to prevent overflow of the reservoir, the separating member 2 is made of a translucent material and fills the indicator (one indicating the level corresponding to the capacity of one cup and the other corresponding to the level of the capacity of the two cups) ) is embossed or otherwise disposed on the side wall 12 of the separating member 2 where it forms a reservoir (see Figures 1, 5 and 7).

The cover 3 (Figs. 13, 14) is a single component, which can be obtained, for example, by injection molding. It can for example be made of polypropylene. It is more flexible than the separating member 2, for example made of a material having a lower modulus of elasticity. The cover 3 comprises a cover section 39 and a depending section 40. The overhanging section 40 has an outer contour that conforms to the inner contour of the side wall 12 of the separating member 12 at the mouth of the reservoir. The overhanging section 40 is interrupted at at least one (in the example, only one) position along its perimeter. The interruption portion 41 extends towards the edge of the overhanging section 40 remote from the cover section 39. The interruption portion 41 allows the overhanging section 40 to be compressed, otherwise it is in the form of a depending wall that is closed on itself. The elastic return force abuts the overhanging section 40 against the separation section The inner surface of the side wall 12 of the piece 2 is pressed. Frictional engagement holds the cover 3 to the separate component.

The cover section 39 forms an overhanging portion with respect to the overhanging section 40 described above. The lip 42 extends even further through the outer edge of the edge section 11 of the separating member 2. The cover 3 can thus be removed relatively easily. In the illustrated embodiment, the lip 42 is at a position offset from the plane of symmetry of the container 1 when the lid 3 is in place. In an alternate embodiment, the cover 3 may be symmetrical or the lip 42 may be offset relative to the other side.

It is worth noting that the covering section 39 is contoured to the edge section 11 of the separating part 2. Thus, it comprises a first substantially planar cover section 43, a curved transition section 44 and a section 45 inclined relative to the first section 43.

Furthermore, the overhanging section of the covering section 39 is received in the recessed part 46 (Figs. 5, 10) of the edge section of the separating part 2. In view of the fact that the recessed part must also accommodate the lip 42, where it extends beyond the edge section of the separating part 2, the recessed part 46 has an outer periphery that is asymmetrical in shape.

A venting recess 47 (Figs. 5, 10, 11) is provided at the bottom of the recessed member 46, which also extends along the inner surface of the separating member 2, wherein the inner surface engages the overhanging section 40. The interruption portion 41 forms a continuation of the ventilation groove 47, so that the liquid treated by the core 24 is replaced by air.

On the side of the separating part 2 closest to the nozzle 7, the recessed portion extends further outwards than the rest of the circumference of the separating part 2, possibly except that the recessed portion extends all the way to the edge to accommodate the lip outer. The laterally extending section of the cover section 39 projects further relative to the overhanging section 40 than the remainder along the periphery of the cover 3 except that it extends beyond the edge of the separating member 2 The outer edge of the segment, which is outside the lip 45. Therefore, when the cover 3 is detached from the separation member 2 by grasping the lip 42, the fulcrum is relatively distant from the edge of the reservoir mouth in the separation member 2. The cover 3 is therefore less likely to fall into the reservoir. It can be easily removed.

Since the pivot axis is relatively close to the center upright axis of the container 1, the separating member 2 can be pivoted relatively easily. The user simply presses on the inclined section 17 of the edge section 11 with the thumb of the hand grasping the container 1. For example, the other hand does not need to hold the glass. Once in the second pivotal position, the separating member 2 is held there by the lugs 18. The section 14 of the edge section 11 covering the mouth of the nozzle 7 in the first position is lifted from the rim 5. The section of the sealing member 20 that prevents liquid from entering the nozzle 7 in the first position is disengaged from the container side wall 6 in the second position. This allows the treated liquid to be poured out of the container 1. In order to return the separating member 2 to the first position, it is only necessary to press the inclined section 17 of the edge section away from the rim 5 with the thumb of the hand grasping the container 1. The guide grooves 9a, 9b and the projections 10a, 10b held therein ensure that the sections 14, 15a, 15b supporting the separating member 2 and closing the edge section 11 of the mouth of the nozzle 7 return to the contact edge 5 in the first position .

The present invention is not limited to the above embodiments, and can be varied within the scope of the appended claims. For example, although the liquid handling system shown is purely gravity driven, alternative embodiments may include means for reducing the pressure in the vessel 1, or means for increasing the pressure in the reservoir formed by the separating member 2. A replaceable liquid handling core 24 having a housing that houses a granular liquid processing medium has been described by way of example. A different embodiment may include an assembly for sealingly receiving a replaceable liquid handling device in the form of a disk of thermally bonded liquid processing medium, optionally at least in part A liquid permeable sheet, such as a pile fabric or mesh, is covered.

1‧‧‧ container

2‧‧‧Separate parts

4‧‧‧ base

6‧‧‧ container side wall

8a‧‧‧Side wall section forming a notch

Claims (20)

An assembly comprising: a container (1) having a base (4) for storing and pouring liquid; and a closure member (2) comprising when the closure member (2) is supported by the container (1) and the base of the container (4) forming a section (11) of the upper section when placed on the support surface; wherein said closure member (2) further comprises a section depending from the upper section (11); wherein the closure member (2) is passed a section (17) of the upper section (11) is pivotable from the first position to the second position while being pressed against the container (1) via the container (1); and wherein the overhanging section comprises a portion (20) The portion is sealed under the first position along at least a portion of the perimeter of the overhanging member against the inner side of the wall (6) of the container (1) to permit only liquid in a second position in the first position and the second position Pour out from the container (1) on the side of the container (1) opposite the side on which the above-mentioned section (17) of the upper section (11) is arranged; characterized in that: the overhanging section and the container The inner side of the wall (6) is provided with at least one pair of protrusions (10a, 10b) and respective members of each of the edges, when the closure member (2) is in the first position and Is pivoted between the two positions, the projections (10a, 10b) movable along said edge. The assembly of claim 1, comprising two pairs of protrusions and edges disposed on opposite sides of the interior of the container (1). The assembly of claim 1 or 2, wherein the edges of each pair of protrusions and edges are edges for receiving corresponding recesses (9a, 9b) of said protrusions, said grooves (9a, 9b) For example a groove (9a, 9b) in the curved section of the container wall (6). The assembly of any one of claims 1 to 3, wherein the container (1) has an elongated cross section perpendicular to the upright axis; and wherein each pair of protrusions and edges are disposed in the container (1) On the long side. The assembly of any of claims 1 to 4, wherein the sealing member (20) abuts against the inner side of the container wall (6) along at least a majority of the periphery of the overhang member in at least the first position. seal. The assembly according to any one of claims 1 to 5, wherein the container (1) comprises a rim (5) surrounding a mouth opposite to the base (4) and an upper portion (11) thereof At least another section (14, 15a, 15b) includes at least one edge section, the at least one edge section being positionable on at least one section of the rim (5) at least in the first position to support the closure component (2). The assembly according to claim 6 wherein the section (17) of the upper section (11) for pressing towards the container (1) is inclined relative to the other section (14, 15a, 15b) of. The assembly of any one of claims 1 to 7 wherein the container comprises a rim surrounding a mouth opposite the base; and wherein the upper section comprises an edge section when the closure member is supported by the container Time, The edge section extends above the rim along at least a majority of the perimeter of the upper section, such as the entire perimeter. The assembly according to any one of claims 1 to 8, wherein the container (1) comprises a nozzle (7); and wherein the sealing member (20) is positioned at the base (4) in at least a first position The level between the nozzle and the nozzle (7). The assembly of any of claims 1 to 9 wherein the overhanging section is provided with a ridge extending around at least a portion of the periphery of the overhanging section, wherein at least one of the ridges The section forms a sealing member (20). The assembly of claim 10, wherein the ridge (20) is spaced from the inner surface of the container wall (6) on one side of the container (1) in at least the second position, the upper portion The section (17) of the section (11) for pressing towards the container (1) is located on the side of the container (1). The assembly according to claim 10, wherein the container (1) is provided with at least one protruding member (22a, 22b) on the inner surface of the container wall (6); each protruding member (22a, 22b) Associated with a respective section of the ridge (20) on the overhanging section and arranged to snap to the protruding part (22a) when the closure member (2) is pivoted from the second position to the first position , 22b) and the position between the base (4). The assembly according to any one of claims 10 to 12, wherein the container (1) is provided with at least one protruding member (23) on the inner surface of the container wall (6); Each protruding member (23) is associated with a respective section of the ridge (20) on the overhanging section and is arranged to snap when the closure member (2) is pivoted from the first position to the second position To the position between the protruding member (23) and the base (4). The assembly according to any one of claims 1 to 13, wherein at least one of the container (1) and at least the sealing member (20) of the closure member (2) is made of an elastically deformable material. The assembly of claim 14, wherein the closure member (2) is stiffer than the container (1). The assembly of any of claims 1 to 15 wherein the side wall of the overhanging section is provided with a lug on one side of the closure member (2), the upper section (11) The section (17) for pressing towards the container (1) is located on this side. The assembly according to any one of claims 1 to 16, wherein the edge is arranged to prevent the closure member (2) from moving away from the base (4) from the container (1) while the closure member (2) is pivoted The mouth opposite to the base (4) moves out. The assembly according to any one of claims 1 to 17, wherein at least one pair of protrusions (10a, 10b) and edges of each of the edges are used to hold the protrusions (10a, 10b) at the edges and Between the bases (4). The assembly of any one of claims 1 to 18, wherein the closure member (2) is configured as a separate member for forming a reservoir of liquid to be treated and maintained for disposal A liquid handling device for liquid passing through the outlet of the reservoir. A liquid treatment system comprising the assembly and liquid treatment device (24) according to claim 19 of the patent application.