EP3323950A1 - Station de lavage et de tampon de mousse - Google Patents

Station de lavage et de tampon de mousse Download PDF

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Publication number
EP3323950A1
EP3323950A1 EP16199907.3A EP16199907A EP3323950A1 EP 3323950 A1 EP3323950 A1 EP 3323950A1 EP 16199907 A EP16199907 A EP 16199907A EP 3323950 A1 EP3323950 A1 EP 3323950A1
Authority
EP
European Patent Office
Prior art keywords
chamber
foam
foam buffer
siphon
buffer
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.)
Withdrawn
Application number
EP16199907.3A
Other languages
German (de)
English (en)
Inventor
Vincent Vaucher
Ismaël Düscher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smixin AG
Original Assignee
Smixin AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Smixin AG filed Critical Smixin AG
Priority to EP16199907.3A priority Critical patent/EP3323950A1/fr
Publication of EP3323950A1 publication Critical patent/EP3323950A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building
    • E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C2001/1206—Pipes with specific features for influencing flow characteristics

Definitions

  • the invention is in the field of water stations and concerns a washing station, in particular a washing station that guarantees an economical use of water, i.e. a so-called low flow rate washing station.
  • a washing station is a low flow rate washing station only if it fulfills demands set by authorities.
  • the flow rate must not exceed 6 liters per minute, for example.
  • there is an increasing demand for reduction of flow rates Said demand is also triggered by recommendations and restrictions that consider the configuration and use of the washing station, too.
  • flow rates of even below 1 liter per minute are envisioned.
  • sink is used for the unit of the washing station that collects liquid dispensed by the washing station or dispensed into the washing station, in the following. This means that - depending on the kind of washing station - the term “sink” may comprise drain pans for example known from showers devices, too.
  • washing station there is no washing station available meeting the demand for a low flow rate and the elimination of foam in the sink.
  • a foam buffer according to the invention is adapted to the needs of a washing station, in particular a low flow rate washing station as mentioned above.
  • the foam buffer is adapted to a hand washing station.
  • Said hand washing station may have a flow rate of below 6 liters per minute, in particular of below 2 liters per minute or of below 2 liter per minute.
  • the flow rate may be around 0.6 liter per minute, for example.
  • the foam buffer comprises an inlet, an outlet and a chamber.
  • the inlet is equipped for connecting the foam buffer to a sink of the washing station in a hydrological manner.
  • Said hydrological connection may be a direct connection between the foam buffer and the sink via the inlet, for example by the inlet comprising an inlet opening with a diameter that is adapted to a diameter of a drain of the sink, or it may be an indirect connection between the foam buffer and the sink via the inlet, for example by the use of an intermediate pipe that leads a liquid from the sink to the inlet.
  • the inlet may comprise a portion that surrounds a portion, e.g. an extension, of the drain circumferentially or that is surrounded by a portion of the drain circumferentially in the case of a foam buffer that is positioned correctly, when in use, relative to the sink.
  • a correct positioning of the foam buffer relative to the sink comprises coincidence of the inlet opening with the drain such that no liquid and no foam leaks when flowing from the sink through the drain into the inlet opening and finally into the chamber.
  • the outlet is equipped for connecting the foam buffer to a siphon of the washing station in a hydrological manner, for example by means as described above.
  • the outlet may comprise an outlet opening with a diameter that is adapted to a diameter of the pipe, for example.
  • the outlet may be arranged to position the foam buffer relative to the siphon and/or to connect the foam buffer with the siphon in a hydrological manner.
  • the outlet may make sure that the outlet opening coincides with an opening of the siphon (the "siphon opening").
  • the outlet may comprise a portion that surrounds a part of the siphon or said pipe circumferentially or that is surrounded by a part of the siphon or pipe circumferentially in the case of a foam buffer that is positioned correctly relative to the siphon.
  • a correct positioning of the foam buffer relative to the siphon comprises coincidence of the outlet opening with the opening of the siphon such that no liquid and no foam leaks when flowing from the chamber through the outlet opening into the siphon.
  • the chamber of the foam buffer may comprise a volume.
  • This volume may be a closed volume except for the inlet and outlet.
  • said volume may be an open volume, in particular by a chamber being partly or completely open at its top.
  • the chamber may be formed such that a surface of the sink forms a top cover of the chamber when the foam buffer is mounted in the washing station.
  • the chamber with a partly or completely open top may be arranged such that a plane comprising the opening at the top of the chamber is at a higher level than a plane comprising the drain of the sink when the foam buffer is mounted in the washing station. By doing so, foam and/or liquid becomes visible in the sink before it flows out from the chamber via the opening at its top.
  • the chamber of a foam buffer according to the invention is arranged between the inlet and the outlet and has a width that is larger than the height.
  • the chamber is arranged between the inlet and the outlet such that a liquid and/or foam can enter the chamber trough the inlet and leave the chamber trough the outlet.
  • the height of the chamber corresponds to the distance between the plane comprising the region in which liquid and/or foam enters the chamber and the plane comprising the region in which the liquid and/or foam leaves the chamber.
  • the width corresponds to a horizontal extension of the foam buffer and the height corresponds to a vertical extension of the foam buffer, generally.
  • the use of a width that is larger than the height has at least the following two positive effects: First, foam entering the chamber through the inlet can spread over a larger area compared to the case of a chamber with a height that is larger than its width. Hence, the foam has a larger surface area and dries faster. Second, the foam buffer can be installed under the sink where there is place for a foam buffer.
  • the width corresponds to the diameter of the cross-section.
  • an average height and/or an average width is to be used instead of the overall height and width.
  • the width of the chamber is larger than its height.
  • the width is at least 1.5 times or twice the height.
  • the width and height may be the absolute width and height, the average width and height, or a combination between an absolute and an averaged value in dependence of the shape of the chamber.
  • the width may be on average at least 1.5 times the absolute height of the chamber.
  • the foam buffer further comprises the siphon.
  • the siphon can be integral with the chamber by being bonded or welded to the chamber, for example. It is also possible that siphon and chamber are fabricated such that they are integral. For example, chamber and siphon may be printed with a 3D-printer, molded or cast.
  • An advantage of an integral realization of chamber and siphon is that the size of the resulting foam buffer can be adapted to requirements given by a washing station.
  • the foam buffer can have a low overall height that corresponds to the siphon that is to be replaced or that corresponds to the space available under the sink of a washing station in use, for example.
  • Siphon and chamber may be one piece. It is also possible that the foam buffer in total is one piece.
  • the siphon may be regarded as a siphon with the specific function of the foam buffer.
  • a foam buffer with a siphon is equivalent to a siphon arranged for foam buffering.
  • the outlet is integral and/or one piece with the chamber and the siphon, too.
  • the outlet may not be recognizable as an independent part of the foam buffer.
  • the siphon can be mounted to the chamber in a detachable way.
  • Such a construction of the foam buffer simplifies installation of the foam buffer and is advantageous in the case when a foam buffer is installed in a washing station in service in order to upgrade it.
  • the volume of the chamber can be larger than a volume of the siphon.
  • the chamber acts as a real buffer compared to a siphon without an upstream chamber.
  • the volume of the chamber is at least 0.4 liter (0.0004 m 3 ).
  • said volume may be adapted to the concrete configuration of the washing station, for example the kind and/or dimensions of the washing station, the used soap, the mixing ratio between soap and water etc., and to the siphon.
  • the volume can be between 0.5 and 4 liters, in particular between 1 and 3 liters.
  • Such volumes are suitable for hand washing stations, in particular.
  • the foam buffer comprises at least a first part and a second part, wherein the first part and the second part being detachable, such that a user can access the inside of the foam buffer, in particular the inside of the chamber and the inlet and outlet, in order to clean the foam buffer.
  • the foam buffer can have a detachable cover.
  • the detachable cover can be rigidly connected to the chamber, e.g. by use of a bayonet joint.
  • the chamber can be fabricated in two parts such that the two parts can be separated and joint reproducibly and such that one part does not change its position between the inlet and the outlet. In other words: the chamber can be opened without removing it.
  • the foam buffer comprises two parts.
  • Residuals are created in the place where foam decomposes, especially if the foam decomposes under dry conditions, i.e. if no or little water is supplied. In the following, these residuals are called "sediments”.
  • the foam buffer further comprises a sediment sensing arrangement that is arranged to determine a level of sediments in the chamber.
  • the level of sediments may be given by a sediment height, a sediment width and/or a sediment volume, for example.
  • the sediment sensing arrangement comprises a sensor.
  • at least this sensor is positioned inside the chamber.
  • the foam buffer may be equipped for at least one of:
  • the sediment sensing arrangement may be equipped to generate an output signal in the case a sediment level has been measured that requires cleaning of the foam buffer.
  • the sediment sensing arrangement generates an output signal if the measured sediment height is larger than 1 cm and/or if the chamber volume is reduced significantly, for example by 15%, 20% or 30%.
  • the foam buffer may comprise a counting unit that counts usage cycles.
  • the counting unit may be equipped to generate an output signal in the case a number of cycles has been counted that requires cleaning of the foam buffer.
  • the foam buffer comprises an aeration element that contributes to foam elimination.
  • the aeration element fastens foam decomposition, e.g. by expose it to fresh air, draught, ventilation and/or an increased, changed or changing air pressure.
  • foam decomposition and foam elimination means that the bubbles constituting the foam are destroyed or reduced in size. The latter leads to bubbles that flow better towards the outlet and through the outlet and siphon.
  • foam can also be eliminated from a portion of the washing station, e.g. from the sink or the chamber, by letting it flow away or by causing it to flow away.
  • the aeration element comprises at least one of:
  • the opening at the top may be the air-inlet opening or part of it.
  • the air-inlet opening is at a horizontal plane that is higher (with respect to the ground) than a horizontal plane comprising the drain or any other part of the sink.
  • foam or liquid becomes visible in the sink before any foam or liquid leaks through the air-inlet opening, e.g. in the event that the siphon is clogged.
  • the aeration element that comprises an air-inlet opening may further comprise an assembly for preventing foam to leak through the air-inlet opening or to leak through the air-inlet opening without being noticed by the user.
  • This assembly is called the "safety assembly" in the following.
  • the safety assembly is needed in the case of an air-inlet opening that is not at a horizontal plane that is higher than a horizontal plane comprising the drain or any other part of the sink.
  • the safety assembly may comprise a venting channel, e.g. a tube, that shifts the air-inlet opening to a horizontal plane that is higher than a horizontal plane comprising the drain or any other part of the sink.
  • a venting channel e.g. a tube
  • the safety assembly may comprise a membrane arranged to let air enter the chamber and to prevent foam and/or liquid to leak out of the chamber.
  • the foam buffer comprises a foam elimination member, in particular an active foam elimination member, i.e. a foam elimination member that comprises a movable part that acts directly or indirectly on the foam.
  • foam elimination means that the bubbles constituting the foam are destroyed or reduced in size. The latter leads to bubbles that flow better towards the outlet and through the outlet and siphon.
  • foam can also be eliminated from a portion of the washing station, e.g. from the sink or the chamber, by letting it flow away or by causing it to flow away.
  • the foam elimination member may comprise at least one of:
  • the foam buffer comprises a hydrophilic surface arranged to promote foam diffusion and/or foam elimination, for example foam elimination that results from foam diffusion.
  • the hydrophilic surface is such that it destabilizes the foam in contact with the hydrophilic surface.
  • a hydrophilic surface promotes spreading of the liquid and bubbles over the surface, and thereby drying and/or destruction of bubbles by reducing the bubble film thickness.
  • the hydrophilic surface of the foam buffer is at least part of the surface defining the inside space of the chamber.
  • the hydrophilic surface may be arranged to spread the foam and fill the foam buffer.
  • the hydrophilic surfaces may be surfaces of the chamber that are vertical or close to vertical and/or overhanging surfaces, e.g. the surfaces forming a top region of the chamber.
  • the foam buffer comprises a hydrophobic surface that promotes flow of sediments such that at least one of flow of the sediments towards the siphon and outflow of the sediments through the siphon is established.
  • the hydrophobic surface is at least part of the surface defining the inside space of the chamber.
  • the hydrophobic surface may be arranged to direct the sediments towards the siphon.
  • any portion of the chamber that tapers towards the siphon may have the hydrophobic surface.
  • the inside of the outlet and/or the inside of a part or of the whole siphon may comprise the hydrophobic surface.
  • the hydrophobic surface may be or may comprise a structure and/or material that promotes the lotus effect.
  • the foam buffer comprises a hydrophilic surface and a hydrophobic surface of the kind describe above.
  • surfaces defining the inside of the chamber that are essentially vertical and/or overhanging may be hydrophilic whereas surfaces tapering towards the siphon and/or surfaces with a low inclination angle may be hydrophobic.
  • said surface may be treated for chamber sterilization.
  • said surface may comprise silver particles
  • the foam buffer comprises a self-cleaning unit.
  • the self-cleaning unit comprises at least one of
  • the brush can be mounted rotatably in the chamber.
  • the foam buffer can be realized as an upgrade unit.
  • the upgrade unit can comprise the foam buffer with or without siphon and/or with or without sink.
  • the upgrade unit comprises the siphon in addition to the foam buffer.
  • any embodiment of the foam buffer may further comprise a distributor that mixes an additive adapted to promote foam elimination into at least one of the water and the foam. Mixing the additive into the foam may be done by spraying it over or into the foam, e.g. when the foam is in the chamber or the inlet.
  • the additive may promote foam elimination, for example by causing the foam wall to thin and collapse.
  • the additive may comprise silicone and/or it may be a silicone based substance.
  • the additives are so-called “defoamers” or “anti-foaming agents”.
  • a foam buffer according to the invention In particular, this concerns the siphon, the multi-part foam buffer, the sediment sensing arrangement, the aeration element, the foam elimination member, the hydrophilic surface, the hydrophobic surface and the self-cleaning unit as well as features related to said components.
  • the invention concerns a washing station that comprises a foam buffer according to the invention, in particular according to any of the above-described embodiments of the foam buffer.
  • the washing station may be a hand washing station.
  • the washing station comprises the sink and the siphon, wherein the foam buffer is placed between the sink and the siphon and wherein the inlet of the foam buffer is connected to the sink in a hydrological manner and the outlet of the foam buffer is connected to the siphon in a hydrological manner.
  • the foam buffer may be placed below the sink, generally. However, the foam buffer or part of the foam buffer may also be placed somewhere else. In the case of a washing station that is used from a well-defined user-side, e.g. given by a tap and/or the presence of a wall to which the washing station is mounted, the foam buffer or part of it may be placed towards the side opposite to the user-side.
  • the position of the drain and/or siphon may be adapted accordingly, for example in order to shorten the length of the inlet.
  • Figure 1 shows a cross-section through a foam buffer 1.
  • the foam buffer 1 comprises a first part 1.1 and a second part 1.2.
  • the first and the second part are detachably mounted to each other, for example by the use of a bayonet joint 8 or a snap lock.
  • the first part 1.1 and the second part 1.2 form a chamber 4.
  • the first part 1.1 is a cover 5 comprising an inlet 2 with an inlet opening 6.
  • the second part 1.2 forms the side-walls and the bottom of the chamber 4 and comprises an outlet 3 with an outlet opening 7.
  • the chamber is connected hydrologically, i.e. direct or indirect by the use of an intermediate pipe for example, through the inlet 2 to a sink 30 as shown in figure 9 and through the outlet 3 to a siphon 32, as shown in figure 6 , for example.
  • liquid and foam can enter the chamber 4 via the inlet opening 6 and leave the chamber 4 via the outlet opening 7.
  • the cover 5 comprises a fixation mechanism 9 in order to fix the cover 5 to the sink 30 or to the intermediate pipe.
  • the fixation mechanism 9 is a screw clamping connection, i.e. a connection in which the inlet 2 (or part of it) and a portion of the sink 30, e.g. an extension 34 of a drain 31, or of the intermediate pipe are pressed against each other in reaction to a rotational movement initiated by the user.
  • the pressure needed to hold the cover 5 and the corresponding portion of the sink 30 or the intermediate pipe together can be generated by a conical element 14, for example.
  • the chamber 4 has a width 4.1 and a height 4.2, wherein the width 4.1 is larger than the height 4.2.
  • the chamber 4 has essentially the basic shape of a cylinder, unless a portion of the chamber 4 that tempers towards the outlet 3.
  • the chamber 4 may have any other basic shape apart from the shape of a cylinder, for example the shape of a cuboid or any shape with a polygonal or elliptical horizontal cross-section.
  • a width 4.1 between 10 and 30 cm and a height 4.2 between 5 and 10 cm yields good results concerning foam buffering at least when using a cylinder-like chamber 4 in combination with siphons 32 typically used with hand washing stations.
  • a width 4.1 between 15 and 25 cm and a height 4.2 between 5 and 7.5 cm, resulting in chamber volume between 0.9 and 3.7 liters is preferred.
  • a chamber volume of around 2 liters for example realized by a cylinder-like chamber 4 with a width 4.1 (diameter) of around 20 cm and a height 4.2 of around 6 cm, is sufficient.
  • FIG. 1 shows the foam buffer 1 with detached cover 5 and before mounting to the sink 30.
  • the sink 30 comprises the drain 31 with an extension 34 at its bottom.
  • the cover 5 For mounting, the cover 5 is moved towards the sink 30 such that the extension 34 engages with the inlet 3 and the inlet 3 surrounds the extension 34 circumferentially.
  • the cover 5 is then fixed to the sink 30 by the use of the fixation mechanism 9.
  • it is the cover 5 that comprises the fixation mechanism 9.
  • the second part 1.2 of the foam buffer 1 forming the side-walls and the bottom of the chamber 4 is fixed to the cover 5 (i.e. to the first part 1.1 of the foam buffer 1) by the use of the bayonet joint 8.
  • the bayonet joint 8 comprises a first element 8.1 being arranged on the first part 1.1 of the foam buffer 1 and a second element 8.2 being arranged on the second part 1.2 of the foam buffer.
  • This way of mounting the foam buffer 1 to the sink 30 leads to a chamber 4 whose interior, i.e. the inside side-walls and the inside bottom but also the inlet 2 and outlet 3, can be made accessible easily.
  • the interior can be made accessible without the use of any tools, without untightening the fixation between the foam buffer 1 and sink 30 and hence without risking to establish a leak during cleaning, for example.
  • the embodiment shown in figure 2 comprises further the optional feature of a hydrophilic surface 27 and of a hydrophobic surface 28.
  • the portion of the inside wall of the chamber 4 that defines the bottom of the chamber 4 comprises the hydrophobic surfaces 28.
  • Any portion of the inside wall of the chamber 4 that defines the side wall of the chamber comprises the hydrophilic surface 27.
  • the shape of the bottom of the chamber 4 is adapted to increase sediment outflow through the outlet 3. This is done by a bottom that tapers towards the outlet 3. Thereby, the bottom may taper towards the outlet 3 under a varying angle, e.g. under an increasing angle as shown in figure 2 .
  • Figure 3 shows the foam buffer 1 from the side, wherein the first part 1.1 (the cover 5 in the embodiment shown) and the second part 1.2 are mounted to each other by the use of the bayonet joint 8.
  • the fixation mechanism 9 comprises a corrugated surface 11 for easier initiation of the rotational movement and for establishing an increased fixation compared to the use of a flat surface.
  • the outside region of the second part 1.2 of the foam buffer 1 comprises holding extensions 10. These extensions 10 are adapted to improve a grip on the foam buffer land to simplify the mounting of the second part 1.2 to the first part 1.1.
  • the siphon 32 (as shown in figure 6 , for example) is connected to the foam buffer 1 via the outlet 3.
  • the outlet 3 of the foam buffer 1 is pushed into a siphon opening such that it is surrounded by the portion of the siphon 32 directed towards the foam buffer 1.
  • the outlet 3 is inserted into the siphon 32 such that a distal end of the outlet 3 is plunged into the stagnant water of the siphon 32.
  • the distal end of the outlet 3 does not reach the stagnant water. This allows easier unmounting of the siphon 32 and/or the foam buffer 1 or its second part 1.2.
  • the foam buffer 1 shown in figure 3 comprises reinforcement protrusions 13.
  • Said reinforcement protrusions 13 reinforce mechanically the region around the outlet 3.
  • the reinforcement protrusions 13 increase the stability of the foam buffer 1 in case of load. In particular, they make sure that the tapering towards the outlet 3 is unchanged when the second part 1.2 is loaded by an internal (for example water) or external (for example loads that apply during mounting or dismounting) load.
  • FIG 4 shows the foam buffer 1 according to figure 3 from the top.
  • the foam buffer 1 comprises the cover 5 that is mounted to the second part 1.2 of the foam buffer 1 by bayonet joints 8.
  • the cover comprises the inlet 2 with the inlet opening 6 and the fixation mechanism 9 comprising the corrugated surface 11.
  • Figure 5 shows the foam buffer 1 according to figure 3 from the bottom.
  • the foam buffer 1 comprises a bottom of the chamber 4 that tapers towards the outlet 3 with the outlet opening 7.
  • the reinforcement protrusions 13 extend radially from the outlet 3 towards the side-walls of the foam buffer 1.
  • Figure 6 shows a cross-section though a foam buffer 1 comprising the siphon 32.
  • the siphon 32 is one piece with the second part 1.2 of the foam buffer 1. Further, the siphon 32 is formed such that it connects horizontally to a drainpipe. This form of the siphon 32 has at least one of the following effects:
  • Figure 7 shows a perspective view of a foam buffer 1 comprising the siphon 32.
  • the foam buffer 1 is shown without first part 1.1 (in the embodiment shown, this means without cover 5) such that portions of the side-walls and of the tapering bottom of the chamber 4 are visible.
  • the second part 1.2 comprises a collar 33 that surrounds circumferentially the portion of the chamber wall directed towards the cover 5, when the foam buffer 1 is in use.
  • the collar 33 extends from the exterior side-wall of the chamber 4 and runs in a direction towards the cover 5 (when the foam buffer 1 is in use) wherein the collar 33 runs in said directions in a manner that it is spaced from the portion of the chamber wall directed towards the cover 5 in the outmost region of said portion, at least.
  • the portion of the second part 1.2 that faces the cover 5 is essentially "U"-shaped.
  • a corresponding, e.g. circumferential, protrusion 35 of the cover 5 can be positioned in said space between chamber wall and collar 33 such that the second part 1.2 and the cover 5 can be connected in a liquid- and foam tight manner.
  • Each bayonet joint 8 comprises a first element 8.1 that is arranged on the cover 5 and a second element 8.2 that is arranged on the second part 1.2 of the foam buffer 1.
  • the second elements 8.2 are arranged equidistantly along the collar 33.
  • the siphon 32 and the second part 1.2 of the foam buffer 1 may be glued, welded or clipped to each other, for example.
  • the aeration tube 40 has the effect that the effective opening of the air-inlet into the chamber 4 is shifted to the aeration opening 41. This is advantageous in the case of too much foam in the chamber 4 because the foam becomes visible in the sink 30 before it leaks out of the chamber 4 via the air-inlet opening 21.
  • the aeration tube 40 may be flexible. This allows for adaptation to any sink shape and/or for sticking the aeration tube 40 on the sink 30. Additionally, the aeration tube 40 may be led through a through bore in the sink 30 such that any foam leaving the aeration opening 41 drops into the sink 30.
  • the fan 22 may be placed inside the chamber 4, as shown in figure 9 , or outside the chamber. In the latter case, the fan 22 effects air swirling in the chamber 4 via openings in the chamber, for example the air-inlet opening 21 (with or without membrane), the aeration opening 41, or an opening at the top of the chamber given by a chamber without cover or by a cover with at least one opening.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP16199907.3A 2016-11-22 2016-11-22 Station de lavage et de tampon de mousse Withdrawn EP3323950A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16199907.3A EP3323950A1 (fr) 2016-11-22 2016-11-22 Station de lavage et de tampon de mousse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16199907.3A EP3323950A1 (fr) 2016-11-22 2016-11-22 Station de lavage et de tampon de mousse

Publications (1)

Publication Number Publication Date
EP3323950A1 true EP3323950A1 (fr) 2018-05-23

Family

ID=57394375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16199907.3A Withdrawn EP3323950A1 (fr) 2016-11-22 2016-11-22 Station de lavage et de tampon de mousse

Country Status (1)

Country Link
EP (1) EP3323950A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002088844A (ja) * 2000-09-21 2002-03-27 Inax Corp 浴槽用排水装置
JP2006063765A (ja) * 2004-08-30 2006-03-09 Maruichi Kk 浴室の排水配管
JP2015040413A (ja) * 2013-08-21 2015-03-02 丸一株式会社 排水配管構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002088844A (ja) * 2000-09-21 2002-03-27 Inax Corp 浴槽用排水装置
JP2006063765A (ja) * 2004-08-30 2006-03-09 Maruichi Kk 浴室の排水配管
JP2015040413A (ja) * 2013-08-21 2015-03-02 丸一株式会社 排水配管構造

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