EP3352912B1 - Rückschlagventil - Google Patents

Rückschlagventil Download PDF

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Publication number
EP3352912B1
EP3352912B1 EP16785208.6A EP16785208A EP3352912B1 EP 3352912 B1 EP3352912 B1 EP 3352912B1 EP 16785208 A EP16785208 A EP 16785208A EP 3352912 B1 EP3352912 B1 EP 3352912B1
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EP
European Patent Office
Prior art keywords
valve
rigid wall
flap
flexible
orifice
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
EP16785208.6A
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English (en)
French (fr)
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EP3352912A1 (de
Inventor
Géry DAMBRICOURT
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CEP TUBES
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CEP TUBES
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Publication date
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Publication of EP3352912A1 publication Critical patent/EP3352912A1/de
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Publication of EP3352912B1 publication Critical patent/EP3352912B1/de
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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
    • 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0075—Two outlet valves being placed in a delivery conduit, one downstream the other
    • 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
    • B05B11/1001—Piston pumps
    • 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
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure

Definitions

  • the present invention relates to a valve equipping the non-return pump with an airless distribution system also called "airless”, that is to say without air intake so that the product dispensed is never in contact with air before distribution.
  • airless distribution system also called "airless”, that is to say without air intake so that the product dispensed is never in contact with air before distribution.
  • This type of airless distribution system is used for the distribution of products which are liable to deteriorate on contact with air. It can be, for example, pharmaceutical products, cosmetic products such as care creams of fluid consistency, that is to say liquid or pasty. As we want to remove the preservatives in creams, it is necessary to protect them from the air.
  • the fluid product is therefore packaged in a shrinkable container so that the volume of the container corresponds precisely at all times of use to the residual quantity of the product that it contains, the product never being in contact with the air at inside the container.
  • the dispenser comprises a pump equipped with an inlet valve and an outlet valve. It is tightly connected to the container and it has at the outlet of the pump an evacuation channel leading to an orifice, the pump being actuated by a push button.
  • the tightness of the valves fitted to the pump is essential to allow the pump to function properly and to guarantee the airtightness of the distribution system.
  • the pump valves usually consist of complex elements integrating balls or valves, both of which are movable, guides, spring-type support means, opening stops. and closing, etc. These complex systems guarantee the tightness of the valve when it is in the closed position and more particularly when the distribution system is at rest.
  • the distribution system is at rest when the pressures inside the container and inside the pump as well as the atmospheric pressure are identical.
  • the inlet and outlet valves of the pump are then closed and airtight.
  • valves Certainly there are fixed valves, simpler to implement than mobile valves, but these valves are never used in airless distribution systems because they do not guarantee air tightness when the system is at rest , mainly due to the lack of support or poor support one on the other of the component parts of the valve ensuring its closure. This critical defect is further amplified due to the overpressure at the interior of the container relative to atmospheric pressure.
  • the object of the invention is to provide a valve for a non-return pump which is both reliable, simple and inexpensive to manufacture, this valve being perfectly airtight in the closed position.
  • the valve is connected to the rigid wall by a fixed non-deformable connection
  • a fixed non-deformable connection means that only part of the valve ensuring the connection to the rigid wall is fixed and not deformable.
  • This fixed part made of flexible polymer, is located in the center of the valve.
  • the flexible peripheral zone extends radially outwards from this fixing zone.
  • the fixing zone could, for example, consist of a flexible chimney part of the valve fitted on a rigid rod connected to the rigid wall.
  • the assembly of the flexible chimney and the rigid rod constitutes a fixed, non-deformable and sealed connection.
  • the assembly thus produced can withstand an upstream overpressure greater than 6 bars.
  • the fixing zone cannot carry out any movement in translation, rotation or deformation of any type with respect to the rigid wall.
  • the valve constitutes the only product passage zone between the container and the pump or between the pump and the outside.
  • the combination of the perforated rigid wall with the flexible wall closing the orifice of the rigid wall by elastic deformation of the flexible wall makes it possible to have a precise, resistant and flexible tight closure. Indeed, the flexible wall is in support, that is to say compressed on the rigid wall.
  • the distribution system and the container delimit three spaces, the container, the pump and the exterior. These three spaces are isolated from each other by the watertight barriers which constitute the inlet valve and the outlet valve of the pump.
  • the container is a space located upstream of the pump
  • the pump is a space located upstream from the outside, relative to the direction of flow of the product.
  • the valve according to the invention is perfectly closed and sealed when the pressures in the container, in the pump and outside are approximately identical. Furthermore, one or other of the valves of the invention remains closed and sealed as long as the overpressure in an upstream space relative to the downstream space which is contiguous to it, is below a threshold previously set at the choice of the user industry.
  • the valve remains closed and sealed when the overpressure in the upstream space is less than 40 millibars, preferably less than 100 to 200 millibars, than that of the downstream space which is contiguous to it. Beyond this minimum overpressure, the flexible wall of the valve deforms. The valve is then in the open position and frees the passage from the upstream space to the downstream space.
  • the value of the overpressure in the upstream space to open the valve can be modulated according to the nature of the polymer, the thickness of the wall of the peripheral zone, and the diameter of the valve.
  • the rigid wall may include several orifices.
  • the system is waterproof after 60 days in an oven at 55 ° C.
  • the peripheral zone of the valve has a substantially conical shape before mounting, with a large base and a small base, and an inner face on the inner side of the cone.
  • said peripheral zone has a deformation of the flattening type and inducing an elongation consecutive to the bearing of the inner face of the large base on the rigid wall.
  • the flexible wall has a flattened area on the side of said large base, constituting the contact area with the rigid wall. Before deformation, the peripheral zone therefore has a substantially truncated cone shape.
  • the small base has a diameter of 3.34 mm
  • the large base has a diameter of 5.67 mm
  • the wall making an angle of 45 ° with the axis of revolution of said truncated cone and having a thickness of 0.50 mm.
  • the peripheral zone is compressed in the form of a "crushed" truncated cone, the external diameter of the ring passing from 5.67 mm to approximately 6.20 mm, ie an elongation of the material of the order of 9 %.
  • This elongation results from the support of the flexible wall on its large base on the side of its internal face.
  • This elongation induces a considerable bearing force, much greater than a non-elastic deformation, which guarantees the tightness "at rest" and at the overpressure of the upstream space.
  • the valve is made in one piece of elastic polymer with shape memory.
  • the deformation of the polymer causes a prestress in the peripheral zone of the valve which keeps it in abutment on the rigid wall when it is in the closed position.
  • the valve is connected to the rigid wall by a fixing means arranged inside the peripheral zone.
  • the fixed connection between the rigid wall and the valve being located in the central part of the valve, the surface of the deformable zone is strictly homogeneous, which guarantees the homogeneity of the support at all points equidistant from the center of the valve.
  • the valve is circular and the peripheral zone annular. This form is the easiest to achieve.
  • the valve may have a different shape.
  • the fixing means consists of a rod or a hollow cylinder fixedly connected to the rigid wall and a chimney disposed in the center of the valve, the chimney being fitted on the rod or the hollow cylinder.
  • the material of the chimney and the assembly system used guarantee the tightness of the fixing means.
  • the assembly thus produced can withstand an upstream overpressure greater than 6 bars.
  • the hollow rod or cylinder and the rigid wall are part of a single piece. The number of parts required to make the pump is thus reduced.
  • the invention also relates to a pump type device comprising an inlet valve and an outlet valve, at least one of which is a first valve with at least one of the previous characteristics is arranged at an input and / or an output of the device.
  • the pump is thus simple and all the easier to manufacture since the rigid walls are each part of a single piece constituting the structure of the pump.
  • the device comprises two valves having an identical valve. This standardization allows a reduction in manufacturing costs.
  • the invention also relates to a device of the airless flexible tube type having a nozzle, characterized in that said nozzle comprises a valve with at least one of the preceding characteristics and housed in the orifice of said flexible tube.
  • the flexible tube is another type of container whose volume is likely to correspond at any time of its use to the residual volume of the product that it contains.
  • the orifice of the tube is open and when the user releases the pressure on the wall of the tube, the air enters the tube in total or partial substitution of the evacuated cream.
  • there is therefore a large amount of air in the tube all the more when the wall of the tube has a large shape memory, which is often the case of the tubes used to condition care creams.
  • the end of the flexible tube comprises a valve of the invention closing the orifice of said flexible tube.
  • the overpressure created in the tube opens the valve and frees the passage of the orifice of the tube.
  • the valve closes preventing the penetration of air into the tube.
  • said endpiece is capped with a second flexible valve for closing the orifice, said second valve being fixed on the internal face of a chimney bearing on the free end of a rod, the rod and the chimney. being in one piece with a support piece.
  • the flexible tube thus has two barriers to the entry of air into the tube, the two barriers being arranged "in series" with respect to each other: the flexible valve for closing the orifice and the check valve valve simultaneously open and close the passage depending on whether the user exerts pressure on the wall of the tube or interrupts this pressure.
  • the support piece forms a one-piece assembly with the end piece.
  • This embodiment is particularly economical since the rigid support walls and the fixing means of each valve are produced in the monobloc end piece.
  • the waterproof non-return valve of the invention adapts to a first pump-type device fitted to an airless distribution system (airless distributor).
  • the airless distributor of the figure 1 comprises a push button 2 and a pump 1, consisting of a first element 6a and a second element 3, movable relative to each other, the combination of these two elements making it possible to constitute a closed space of volume variable constituting a distribution chamber 11.
  • the distributor is fixed on a container (not shown) arranged on the side opposite to the push button 2.
  • the pump 1 is equipped with an inlet valve consisting of a valve 7 bearing on the rigid wall 63 belonging to the first element 6a of the pump 1 and an outlet valve consisting of a valve 8 bearing on the rigid wall 35 belonging to the second element 3 of the pump 1.
  • the inlet valve provides the barrier between the container and the pump 1
  • the outlet valve provides the barrier between the pump 1 and the outside, thus delimiting three sealed spaces with respect to the other of the container, of the pump and the outside atmosphere.
  • the valve 7 comprises a flexible peripheral wall 70 and a central fixing means consisting of a chimney 71.
  • the flexible wall 70 describes a cone of revolution of axis XX, the generatrix of which is approximately a straight line making an angle A with the axis XX of the chimney 71, for example 45 ° ( figure 4 ).
  • the value of the angle A can vary depending on the polymer and the valve diameter 7.
  • the preferable angle A combines the largest bearing surface and the greatest bearing force after assembly.
  • the assembly consists in resting the valve 7 on the wall 63, by fitting the chimney 71 onto a rod 62 also belonging to the first element 6a of the pump and substantially perpendicular to the wall 63.
  • the cone of revolution has a large base 72 and a small base 73, and an inner face 720 on the inner side of the cone.
  • the rigid wall 63 is perforated with at least one orifice 64 disposed under the valve 7 and allowing the product to be removed from the container.
  • the flexible peripheral zone 70 provides a seal until an overpressure of the upstream zone between 120 and 160 millibars beyond which the zone 70 will deform to open the valve and allow the product to pass. This value is both sufficient to guarantee the tightness of the valve and sufficiently low to give a pleasant feeling to the user.
  • the pump outlet valve 8 has the same characteristics before and after assembly as the valve 7. It has a flexible wall 80 and a chimney 81.
  • the cone of revolution has a large base 82 and a small base 83, and an inner face 820 on the inner side of the cone. In a preferred solution, it is strictly identical to the valve 7.
  • the flexible wall 80 is supported on a rigid wall 35 belonging to the second component 3 constituting the pump, according to characteristics identical to the support of the wall.
  • the chimney 81 is fitted on a hollow rod 21 substantially perpendicular to the wall 35 which is perforated with at least one orifice 36 disposed under the valve 8.
  • the outlet valve therefore has properties identical to the inlet valve.
  • the push button 2 is pierced with a conduit 22 which allows the distribution of the product.
  • the push button 2 is mobile. The back and forth movement of the push button 2 causes the volume of the distribution chamber 11 with variable volume to vary.
  • the overpressure causes the valve 8 of the outlet valve to open, reducing the volume of the distribution chamber and product discharge outside.
  • the user releases the push button 2 it rises under the effect of a return means 5 and creates a depression in the distribution chamber 11.
  • the depression causes the valve 8 of the outlet valve to close, l opening of the valve 7 of the inlet valve and filling the distribution chamber 11 from the container (not shown).
  • the waterproof non-return valve of the invention fits on a second device of the flexible tube type.
  • the flexible tubes are generally composed of three constituents: a flexible body or skirt 101, a tube head 102 and a capsule.
  • the head of the tube is a rigid element having a fixing means 102-1 for the capsule, said capsule being able to be fixed, in the case of the so-called “service” capsule 103 ( figure 6C ), or removable in the case of the so-called “screw” capsule 105 ( figure 6B ).
  • the head of the tube 102 constitutes a one-piece assembly integrating the fixing means 102-1 of the removable capsule 105 and the end piece 102-3, which delimits the orifice 104 of evacuation of the product contained in the tube.
  • the orifice 104 is closed by screwing the capsule 105 onto the fixing means 102-1.
  • the nozzle 103-3 delimiting the orifice 104 of the tube is in one piece with the base of the capsule.
  • the cap has freedom of pivoting relative to the base. In the open position, it releases the orifice 104, in the closed position it closes the orifice 104.
  • the flexible tube according to the invention comprises a valve housed in the orifice 104.
  • the support part 6b is a one-piece assembly which joins the rod 62, the chimney 106, and the rigid wall 63 (cf. figure 7 and 8 ). Said support part 6b can be assembled with the end piece 102-3, 103-3.
  • the support part 6b can be an element of the monobloc end piece 102-3, 103-3.
  • the endpiece is topped with a reducer 105 to protect the valve 7 and give the outlet orifice 104 the required diameter.
  • the reducer 105 is fixed to the support part 6a in the chimney 106.
  • the endpiece is capped with a second flexible valve 107 for closing the orifice 104 in substitution for the reducer 105 of the figure 7 .
  • the second valve 107 is fixed on the internal face of the chimney 106 bearing on the free end 621 of the rod 62.
  • the valve constituting the obturator endpiece and the non-return valve open and close simultaneously depending on whether the user exerts pressure on the tube wall or interrupts this pressure.
  • the free end of the rod 62 and the wall 106 respectively act as a rigid support wall and as a means of fixing the valve 107.
  • This embodiment is particularly economical since the means for fixing the valves 7 and 107, as well as the rigid support walls of these valves are produced in the one-piece part 6a.
  • the valve 7 or 8 can be made of an elastomer of the SEBS, TPP or TEV type.
  • the rigid wall 63, 35 can be made of high density polyethylene (HDPE), polycarbonate (PC), polypropylene (PP) or acrylonitrile styrene (SAN) and any type of rigid polymer compatible with the packaged product.
  • HDPE high density polyethylene
  • PC polycarbonate
  • PP polypropylene
  • SAN acrylonitrile styrene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Check Valves (AREA)
  • Closures For Containers (AREA)
  • Safety Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Claims (10)

  1. Ventil, das aus einer starren Wand (63, 35) und einer Klappe (7, 8) besteht, dadurch gekennzeichnet, dass:
    - die Klappe über einen nicht durchbrochenen, weichen und verformbaren Umfangsbereich (70, 80) verfügt, der der starren Wand (63, 35) gegenüberliegt;
    - die starre Wand von mindestens einer Öffnung (64, 36) durchbrochen ist, die dem Umfangsbereich (70, 80) gegenüberliegt,
    - die Klappe (7, 8) über eine nicht verformbare feste Verbindung mit der starren Wand (63, 35) verbunden ist,
    - der Umfangsbereich (70, 80) vor Anbringung eine im Wesentlichen kegelige Form mit einer großen Basis (72, 82) und einer kleinen Basis (73, 83) und einer Innenfläche (720, 820) auf der Innenseite des Kegels aufweist,
    - der Umfangsbereich infolge des Abstützens der Innenfläche (720, 820) der großen Basis auf der starren Wand (63, 35) in zusammengebauter Stellung eine Verformung aufweist.
  2. Ventil nach Anspruch 1, dadurch gekennzeichnet, dass die Klappe (7, 8) einstückig aus elastischem Formgedächtnispolymer ist.
  3. Ventil nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Klappe (7, 8) über ein Befestigungsmittel, das im Inneren des Umfangsbereichs (70, 80) angeordnet ist, mit der starren Wand (63, 35) verbunden ist.
  4. Ventil nach Anspruch 3, dadurch gekennzeichnet, dass das Befestigungsmittel aus einem Schaft oder einem Hohlzylinder (62, 21), der fest mit der starren Wand (63, 35) verbunden ist, und einem Schacht (71, 81) besteht, der in der Mitte der Klappe (7, 8) angeordnet ist, wobei der Schacht (71, 81) auf den Schaft oder den Hohlzylinder (62, 21) aufgesteckt ist.
  5. Ventil nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der Schaft oder der Hohlzylinder (62, 21) und die starre Wand (63) Bestandteil eines einstückigen Teils sind.
  6. Vorrichtung vom Typ einer Pumpe, die ein Einlassventil und ein Auslassventil umfasst, von denen mindestens ein erstes Ventil (7, 8) nach einem der vorstehenden Ansprüche an einem Einlass und/oder an einem Auslass der Vorrichtung angeordnet ist.
  7. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die zwei Ventile über eine identische Klappe (7, 8) verfügen.
  8. Vorrichtung vom Typ eines luftfreien weichen Rohrs, die über ein Endstück (102-3, 103-3) mit einer Öffnung (104) verfügt, dadurch gekennzeichnet, dass das Endstück ein Ventil nach einem der Ansprüche 1 bis 5 umfasst.
  9. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das Endstück (102-3, 103-3) mit einer zweiten weichen Klappe (107) zum Verschließen der Öffnung (104) bedeckt ist, wobei die zweite Klappe an der Innenfläche eines Schachts (106) in Abstützung auf dem freien Ende (621) eines Schafts (62) befestigt ist, wobei der Schaft (62) und der Schacht (106) mit einem Trägerteil (6b) einstückig sind.
  10. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das Trägerteil (6b) mit dem Endstück (102-3, 103-3) eine einstückige Baugruppe bildet.
EP16785208.6A 2015-09-22 2016-09-22 Rückschlagventil Active EP3352912B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1558944A FR3041409A1 (fr) 2015-09-22 2015-09-22 Valve anti-retour etanche
FR1560099A FR3041412B1 (fr) 2015-09-22 2015-10-22 Valve anti-retour etanche
PCT/FR2016/052406 WO2017051125A1 (fr) 2015-09-22 2016-09-22 Valve anti-retour étanche

Publications (2)

Publication Number Publication Date
EP3352912A1 EP3352912A1 (de) 2018-08-01
EP3352912B1 true EP3352912B1 (de) 2020-05-13

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EP16795111.0A Active EP3352915B1 (de) 2015-09-22 2016-09-22 Rückschlagventil
EP16785208.6A Active EP3352912B1 (de) 2015-09-22 2016-09-22 Rückschlagventil

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EP16795111.0A Active EP3352915B1 (de) 2015-09-22 2016-09-22 Rückschlagventil

Country Status (5)

Country Link
US (1) US10569285B2 (de)
EP (2) EP3352915B1 (de)
CN (1) CN109070115B (de)
FR (2) FR3041409A1 (de)
WO (2) WO2017051086A1 (de)

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KR102134989B1 (ko) * 2019-01-24 2020-07-16 강성일 일체형 체크밸브
CN110056535B (zh) * 2019-05-27 2020-09-11 新乡市中机工业有限公司 一种水泵耐磨耐腐蚀口环装置
US20230173518A1 (en) * 2020-04-07 2023-06-08 Samhwa Co., Ltd Pump cap
KR20210124871A (ko) * 2020-04-07 2021-10-15 주식회사 삼화 화장품 용기
US11679403B1 (en) 2022-02-02 2023-06-20 Ries Ries Inc Travel dispenser for dispensing a fluid

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FR3041409A1 (fr) 2017-03-24
CN109070115A (zh) 2018-12-21
EP3352912A1 (de) 2018-08-01
EP3352915B1 (de) 2020-05-20
US10569285B2 (en) 2020-02-25
US20190076862A1 (en) 2019-03-14
FR3041412B1 (fr) 2018-04-20
WO2017051125A1 (fr) 2017-03-30
CN109070115B (zh) 2021-10-29
EP3352915A1 (de) 2018-08-01
FR3041412A1 (fr) 2017-03-24
WO2017051086A1 (fr) 2017-03-30

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