EP3755466B1 - Dispositif de filtration - Google Patents

Dispositif de filtration Download PDF

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Publication number
EP3755466B1
EP3755466B1 EP18907101.2A EP18907101A EP3755466B1 EP 3755466 B1 EP3755466 B1 EP 3755466B1 EP 18907101 A EP18907101 A EP 18907101A EP 3755466 B1 EP3755466 B1 EP 3755466B1
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EP
European Patent Office
Prior art keywords
filtration device
skirt
filter
fragments
cylinder
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.)
Active
Application number
EP18907101.2A
Other languages
German (de)
English (en)
Other versions
EP3755466A4 (fr
EP3755466A1 (fr
Inventor
Karl MAO
Steven Wang
Future LI
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.)
Silgan Dispensing Systems Wuxi Co Ltd
Original Assignee
Silgan Dispensing Systems Wuxi Co Ltd
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 Silgan Dispensing Systems Wuxi Co Ltd filed Critical Silgan Dispensing Systems Wuxi Co Ltd
Publication of EP3755466A1 publication Critical patent/EP3755466A1/fr
Publication of EP3755466A4 publication Critical patent/EP3755466A4/fr
Application granted granted Critical
Publication of EP3755466B1 publication Critical patent/EP3755466B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/40—Filters located upstream of the spraying outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/30—Dip tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle

Definitions

  • the invention relates to a filtration device for a system for dispensing a fluid product mixed with fragments not intended to be dispensed. This filtration device enables to separate said fragments from the fluid product.
  • the invention also relates to a system for dispensing this fluid product comprising a dip-tube at the end of which is fixed the filtration device.
  • the invention relates to a dispensing container provided with such a filtration device.
  • the container stores the fluid product and the fragments.
  • This container comprises a dispensing system coupled to the filtration device, so as to filter the fragments and to dispense the fluid product.
  • the fluid product is of the lotion, gel, perfume or cream type, for example, for cosmetic use or for pharmaceutical treatments.
  • Existing dispensing container includes a reservoir for holding the fluid product, a collar mounted on the reservoir, a pump received in the collar, and a nozzle connected to the pump for dispensing the fluid product.
  • the pump has a dip-tube dipping into the fluid product.
  • the objective of the invention is to provide a new dispensing container which has a dip-tube and is suitable for fluid product with colorful fragments.
  • the innovated dispensing container effectively prevents the colorful fragments in the fluid product from blocking the dip-tube and from being drawn to damage the pump.
  • the present invention solves the above technical problem with a filtration device adapted for a system for dispensing a fluid product mixed with fragments not intended to be dispensed in order to avoid blocking the dip-tube and damaging the pump of the dispensing system.
  • This filtration device filters the fragments and prevents them from being drawn into the dip-tube.
  • Said filtration device comprises:
  • This filtration device is provided with a hollowed central cylinder defining a channel where flows the fluid product once filtered, said channel being delimited by an inlet orifice and an outlet orifice, said second filter being located into said channel, and consisting in a perforated disc closing the inlet orifice, wherein the first filter consists in an apertured skirt extending radially outwardly from the cylinder and surrounding the second filter, said skirt including a plurality of flared free ends separated by longitudinal slots designed bigger than the perforations of the second filter.
  • the main idea of this invention is to add a filtration device in the dispensing container in order to filter the fragments. There are in fact two successive stages of filtration.
  • the first filter enables to filter the big fragments. More precisely, the petals, flowers, etc, are stopped by the skirt. The big fragments abut against the external wall of the skirt, whereas the fluid product and the little fragments are able to pass through the apertures of the skirt, and reach the second filter.
  • This second filter is designed so as to filter the small fragments. As a result, the small fragments abut against the external wall of the second filter, whereas the fluid product is able to pass through the second filter, enters into the channel inside the cylinder, and is then ready to be dispensed.
  • the second filter is located into the channel. That means that the second filter can be located inside the channel as well as at the inlet or the outlet of the channel. Any position is convenient.
  • the invention also relates to a system for dispensing a fluid product comprising a dip-tube at the end of which is fixed the filtration device as previously described.
  • the invention relates to a dispensing container containing a fluid product mixed with fragments not intended to be dispensed, said container comprising a reservoir where the fluid product and the fragments are stored, and further comprising a dispensing system having a fluid product retrieving path starting from the reservoir and ending in a dispensing orifice, said retrieving path being partially formed by a dip-tube at the end of which is fixed the filtration device as previously described, enabling a filtration of the fragments.
  • the dip-tube comprises a first end connected to a pumping device of the dispensing system, and a second end inserted into the outlet orifice of the cylinder of the filtration device.
  • the external diameter of the dip tube is designed to fit into the outlet orifice of the cylinder.
  • the filtration device rests on the bottom of the reservoir, so as to filtrate the totality of the fluid product stored in the reservoir.
  • Figure 1 illustrates a dispensing container according to the invention.
  • This existing dispensing container classically includes:
  • the pump 6 has a dip-tube 4 dipping into the fluid product 18.
  • the fluid product 18 stored in the reservoir 5 is drawn into the dip-tube 4, and finally pumped out through a dispensing orifice 10 of the nozzle 9 for use.
  • the product 18 stored in the reservoir 5 is thus dispensed for example, in the form of a drop or a continuous stream.
  • the product 18 is a lotion, a gel, a perfume or a cream, for cosmetic use or for pharmaceutical treatments.
  • the reservoir 5 stores not only a fluid product 18, but also colorful fragments 19,20, such as flowers or petals, or any other kind of decorating fragments 19,20.
  • a filtration device 1 is mounted on the lower end of the dip-tube 4. This lower end corresponds to the free end of the dip-tube 4 that is usually located at the bottom of the reservoir 5. This filtration device 1 is thus entirely immersed in the fluid product.
  • This filtration device 1 is more precisely depicted in figures 2 and 3 .
  • the filtration device 1 is provided with a cylinder 2, a skirt 3, and a perforated disc 13 at the bottom of the cylinder 2.
  • the cylinder 2 is hollow, and defines a channel 23 with an upper opening corresponding to an outlet orifice 21, and a lower opening corresponding to an inlet orifice 22 for the filtered fluid product 18 (see figure 11 ). This lower opening is closed by the perforated disc 13.
  • the dip-tube 4 is inserted into the upper opening of this cylinder 2.
  • the cylinder 2 is thus provided with a free end 17 directed towards the bottom of the reservoir 5.
  • the skirt 3 is extending radially outwardly and downwardly from the external wall of the cylinder 2.
  • the skirt 3 surrounds the cylinder 2.
  • the cylinder 2 is axially located in the skirt 3.
  • the skirt 3 is approximately fixed halfway up the cylinder 2. But the skirt 3 could be fixed at the upper end of the cylinder 2, or at any other height of the cylinder 2.
  • the skirt 3 includes a plurality of flared free ends 11 separated by longitudinal slots 12. That means that the slots 12 are directed along the longitudinal direction of the cylinder 2.
  • the skirt 3 includes at least two flared free ends separated by two slots 12.
  • the slots 12 are thin compared to the flared free ends 11.
  • the skirt 3 is divided into four flared free ends 11 separated by four slots 12.
  • the aim is to enable the fluid product 18 to pass through the skirt 3 by means of little inlets, i.e. the slots 12, in order to reach the cylinder 2.
  • the slots 12 are designed so as to let the fluid product 18 pass through, but block the fragments, especially the big fragments 19 like petals or flowers. Each slot 12 is thus dimensioned smaller than the size of these kinds of fragments 19 in a wet state. According to the fragments 19 stored in the reservoir 5, the slots 12 can be designed smaller or bigger.
  • the width of a slot 12 i.e. the distance between two flared free ends 11, is comprised between 3mm and 0.5mm.
  • the width of a slot 12 is comprised between 2.5mm and 1mm. More preferably, the width of a slot 12 is equal to 1.5mm.
  • the big fragments 19 are bigger than 1mm.
  • the slots 12 are not cut along the whole length of the skirt 3, that means that they do not touch the cylinder 2 from where the skirt 3 extends.
  • the slots 12 are cut halfway up the skirt 3. It enables the skirt 3 to keep a rigidity and to avoid any deformation of the flared free ends 11 that could be caused by the overpressure into the reservoir 5 when pumping.
  • the skirt 3 is a revolution piece with a central X axis.
  • the skirt 3 has a dome shape.
  • the skirt 3 can have a general hemispheric shape.
  • the flared free ends 11 are then shaped in arcs to reduce fluid resistance, with which the fluid product 18 could be drawn into the dip-tube 4 smoothly.
  • the skirt 3 could have a spherical shape, with the same slots 12 being homogeneously distributed all over the sphere. In this case, there are free ends having each a petal shape, i.e. with a central flared part. The lower part of the cylinder 2 with the second filter would be hidden into the skirt 3.
  • the perforated disc 13 provided at the bottom of the cylinder 2, i.e. at the lower opening of the cylinder 2, corresponds to a mesh grid in figures 2, 3 and 10 .
  • the perforations 24 of the mesh grid are designed smaller than the slots 12 of the skirt 3, because their role is to stop the little fragments 20 that have not been previously blocked by the slots 12.
  • the skirt 3 with the slots 12 correspond to a first filter for filtering big fragments 19, and the perforated disc 13 corresponds to a second filter for filtering small fragments 20.
  • These small fragments 20 can be particles coming from the flowers, for examples pollen, pistil, stamen, etc.
  • the fluid product 18 that arrives into the channel 23 of the cylinder 2 has passed successively through the first filter and the second filter. These two levels of filter enable to dispense a fluid product 18 of good quality, without any asperity into it.
  • Both sizes of the slots 12 and the perforations 24 can be adjusted per the actual fragment 19,20 size requirements.
  • the first filter prefferably has slots 12 that are designed bigger than the perforations 24 of the second filter to stop bigger fragments 19, otherwise these fragments 19 may block the mesh grid.
  • a petal can cover the mesh grid, and prevent the fluid product 18 to pass through the second filter.
  • the perforated disc 13 is advantageously provided with a boss 14 centrally located.
  • This boss 14 corresponds to a pin extending axially outwardly from the disc 13, with a height H1 comprised between 0.2mm and 0.35mm, and preferably equal to 0.3mm.
  • This height H1 is dimensioned so as to keep the big fragments 19 away from the perforations 24. With such a boss 14, a petal or a flower cannot be stuck onto the perforations 24.
  • the boss 14 enables the perforated disc 13 to have an irregular surface, such that:
  • This boss 14 improves the filtering effect.
  • the cylinder 2, the skirt 3 and the perforated disc 13 are made in one-piece in one process, such as injection, as illustrated in figures 2 and 3 .
  • the perforations 24 consists in an arrangement of openings having each a square profile or a circular profile.
  • each opening has a square profile with a length comprised between 0.2mm and 6mm.
  • the length of the square is between 0.3mm and 0.5mm. More preferably, the length of the square is 0.4mm.
  • each opening has a rectangular profile with a long side having a length between 0.6mm and 0.22mm.
  • a small fragment 20 has a size comprised between 0.5mm and 1mm.
  • the perforated disc 13 consists in intersecting ribs, forming for example a star at the bottom of the cylinder 2.
  • Other shapes can be suitable.
  • the free spaces between adjacent ribs correspond to the perforations 24.
  • the skirt 3 is not depicted for better clarity.
  • the filtration device 1 can be made in two pieces as illustrated in figure 7 .
  • the cylinder 2 and the skirt 3 are made in one-piece in one process, while the perforated disc 13 is another piece which is made from certain materials, such as nylon, such that the perforations 24 of the mesh grid can be sized smaller.
  • the mesh grid is connected to the bottom side of the cylinder 2 by such as ultrasonic welding. Other kinds of well-known type of connection can be used.
  • the perforated disc 13 is made of sintered polypropylene, or sintered polyethylene.
  • the dip-tube 4 is designed to be long enough such that the filtration device 1 can reach the bottom of the reservoir 5. More precisely, the flared free ends 11 of the skirt 3 rest on the bottom of the reservoir 5 or in a corner of the reservoir 5. In this manner, the fluid product 18 has to pass first through the filtration device 1 before reaching the channel 23 and the dip-tube 4.
  • the skirt 3 extends axially beyond the free end 17 of the cylinder 2. That means that the skirt 3 is longer than the cylinder 2, so that the cylinder 2 does not rests on the bottom of the reservoir 5, otherwise the fluid product 18 could not reach the second filter.
  • the skirt 3 acts like a booster seat.
  • the skirt 3 protrudes from the cylinder 2 of a height H2 as depicted in figure 11 .
  • This height H2 is comprised between 0.4mm and 0.6mm.
  • the height H2 is equal to 0.5mm.
  • the skirt 3 is dimensioned so as to create a sufficient annular volume between the skirt 3 (i.e. the first filter) and the perforated disc 13 (i.e. the second filter), in a manner to avoid an accumulation of small particles (i.e. particles that pass through the first filter, but that are blocked by the second filter).
  • This kind of gap is depicted in figure 6a , when the filtration device 1 is located in a corner, as the sucked fluid product will by-pass the first filter.
  • Such a gap can corresponds to the distances d1 and d2 between the circular free end of the skirt 3 and the lateral wall 5a of the reservoir 5, and to the distances d3 and d4 between the circular free end of the skirt 3 and the bottom wall 5b of the reservoir 5,
  • the skirt 3 has a contact point C1 with the lateral wall 5a of the reservoir 5, and a contact point C2 with the bottom wall 5b of the reservoir 5.
  • the radial distance D is comprised between 1.5 and 5 mm, and preferably between 2mm and 4mm. More preferably, the radial distance D is comprised between 2.5mm and 3.5mm.
  • the external diameter of the skirt 3 is comprised between 8mm and 16mm. Preferably, the external diameter of the skirt 3 is comprised between 10mm and 14mm.
  • Figure 6c illustrates a large skirt 3.
  • the dotted line represents the limit allowing the blockage of large objects 19 like petals.
  • the large petals 19 can reach the second filter 13 as they travel along the Z direction between the walls 5a, 5b of the reservoir 5 and the dotted line.
  • the petals 19 in dotted lines are blocked by the skirt 3.
  • Figure 6b illustrates a skirt is of so small dimension that all the big objects 19 like petals are stopped by the first filter (i.e. skirt 3) and none of them can reach the second filter 13. Nevertheless, the volume between the walls 5a, 5b of the reservoir 5 and the dotted line is so narrow that the small particles 20 (that passed the first filter 3) accumulate and finally deteriorate the quality of filtration of the second filter 13. Actually, this zone is too narrow for the small particles 20 to freely move without accumulating in front of the second filter 13.
  • the dip-tube 4 abuts on a shoulder 15 provided into the internal wall of the cylinder 2, as depicted in figure 11 .
  • the internal wall of the cylinder 2 is provided with a narrow part 16 at the vicinity of the outlet orifice 21, enabling to create a seal at the junction between the cylinder 2 and the dip-tube 4.
  • the filtration device 1 is made of a material having a suitable transparency in order to facilitate a desirable low visibility optical effect of the filtration device 1 when immersed in a liquid fragrance.
  • the filtration device 1 is made from a material:

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Claims (15)

  1. Dispositif de filtration (1) pour un système de distribution d'un produit fluide (18) mélangé à des fragments (19,20) non destinés à être distribués, ledit dispositif de filtration (1) comprenant :
    - un premier filtre ;
    - un second filtre ;
    ledit dispositif de filtration (1) est pourvu d'un cylindre central creusé (2) définissant un canal (23) où s'écoule le produit fluide (18) une fois filtré, ledit canal (23) étant délimité par un orifice d'entrée (22) et un orifice de sortie (21), ledit second filtre étant situé dans ledit canal (23) et consistant en un disque perforé (13) fermant l'orifice d'entrée (22), dans lequel le premier filtre consiste en une jupe ajourée (3) s'étendant radialement vers l'extérieur du cylindre (2) et entourant le second filtre, ladite jupe comprenant une pluralité d'extrémités libres évasées (11) séparées par des fentes longitudinales (12) conçues pour être plus grandes que les perforations (24) du second filtre.
  2. Dispositif de filtration (1) selon la revendication 1, dans lequel la jupe (3) a une forme de dôme, le cylindre (2) étant situé axialement dans la forme de dôme.
  3. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel les extrémités libres évasées (11) de la jupe (3) sont en forme d'arcs.
  4. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel la jupe (3) s'étend axialement au-delà d'une extrémité libre (17) du cylindre (2) située à proximité de l'orifice d'entrée (22).
  5. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel le disque perforé (13) est constitué d'une grille de maille.
  6. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel le disque perforé (13) est constitué de nervures entrecroisées.
  7. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel le cylindre (2) et la jupe (3) sont fabriqués en une seule pièce.
  8. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel le cylindre (2) et le disque perforé (13) sont fabriqués en une seule pièce.
  9. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel le disque perforé (13) est pourvu d'un bossage (14) situé au centre du disque (13) et s'étendant vers l'extérieur du canal (23).
  10. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel il fabriqué à partir d'un matériau dont l'indice de réfraction est compris entre 1,36 et 1,44.
  11. Dispositif de filtration (1) selon l'une quelconque des revendications précédentes, dans lequel il est fabriqué à partir d'un matériau contenant du fluor.
  12. Système de distribution d'un produit fluide (18) comprenant un tube plongeur (4) à l'extrémité duquel est fixé le dispositif de filtration (1) selon l'une quelconque des revendications précédentes.
  13. Récipient de distribution contenant un produit fluide (18) mélangé à des fragments (19,20) non destinés à être distribués, ledit récipient comprenant un réservoir (5) où le produit fluide (18) et les fragments (19,20) sont stockés, et comprenant en outre un système de distribution ayant un parcours de récupération de produit fluide partant du réservoir (5) et aboutissant à un orifice de distribution (10), ledit parcours de récupération étant partiellement formé par un tube plongeur (4) à l'extrémité duquel est fixé le dispositif de filtration (1) selon la revendication 1 apte à permettre une filtration des fragments (19,20), ledit dispositif de filtration (1) comprenant :
    - un premier filtre pour filtrer un premier type de fragments (19) ;
    - un second filtre pour filtrer un second type de fragments (20) ayant une dimension inférieure à celle du premier type de fragments (19).
  14. Récipient de distribution selon la revendication 13, dans lequel le tube plongeur (4) comprend une première extrémité reliée à un dispositif de pompage (6) du système de distribution, et une seconde extrémité insérée dans l'orifice de sortie (21) du cylindre (2) du dispositif de filtration (1).
  15. Récipient de distribution selon les revendications 13 à 14, dans lequel le dispositif de filtration (1) repose sur le fond du réservoir (5).
EP18907101.2A 2018-02-24 2018-02-24 Dispositif de filtration Active EP3755466B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/077160 WO2019161556A1 (fr) 2018-02-24 2018-02-24 Dispositif de filtration

Publications (3)

Publication Number Publication Date
EP3755466A1 EP3755466A1 (fr) 2020-12-30
EP3755466A4 EP3755466A4 (fr) 2021-09-08
EP3755466B1 true EP3755466B1 (fr) 2024-05-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18907101.2A Active EP3755466B1 (fr) 2018-02-24 2018-02-24 Dispositif de filtration

Country Status (3)

Country Link
EP (1) EP3755466B1 (fr)
CN (1) CN111886077B (fr)
WO (1) WO2019161556A1 (fr)

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
CN2091184U (zh) * 1991-04-09 1991-12-25 余姚市微型喷雾器厂 间歇式微型喷雾器
CN2104032U (zh) * 1991-10-26 1992-05-13 韩振山 禽病防治雾化器
JP3883167B2 (ja) * 1999-11-30 2007-02-21 株式会社吉野工業所 容器体装着用液体噴出ポンプ
US6227412B1 (en) * 2000-03-03 2001-05-08 Saint-Gobain Calmar Inc. Dip tube filter for manually actuated dispenser
CA2320653A1 (fr) * 2000-09-26 2002-03-26 Design Pierre Tardif Inc. Distributeur en aerosol d'huile de cuisson
JP3531004B2 (ja) * 2001-07-24 2004-05-24 株式会社三谷バルブ 異物詰まり防止機構
KR20060084683A (ko) * 2005-01-20 2006-07-25 구자민 액제(液劑) 흡입효율을 개선시킨 리필형 분무기
JP2009161490A (ja) * 2008-01-08 2009-07-23 Kuroi Electric Co Ltd 銀イオン水スプレー装置
ES1078920Y (es) * 2011-05-13 2013-06-28 Quirky Inc Dispositivo dispensador de rocío
FR2994536B1 (fr) * 2012-08-16 2015-09-18 Capsum Element de delivrance d'une composition fluide, dispositif de distribution et procede associes
EP3134672B1 (fr) * 2014-04-25 2020-05-27 Saint-Gobain Performance Plastics Corporation Puisard d'écoulement de fluide
CN206356163U (zh) * 2016-10-11 2017-07-28 刘浩正 一种防堵塞的喷壶
CN206552583U (zh) * 2016-12-09 2017-10-13 山西林业职业技术学院 杀虫剂喷雾瓶

Also Published As

Publication number Publication date
EP3755466A4 (fr) 2021-09-08
WO2019161556A1 (fr) 2019-08-29
EP3755466A1 (fr) 2020-12-30
CN111886077A (zh) 2020-11-03
CN111886077B (zh) 2022-10-04

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