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 of an airless distribution system also called "airless”, that is to say without air intake so that the product distributed is never in contact with the air before its distribution.
• airless distribution system is used for the distribution of products that are likely to deteriorate in contact with the air. It may 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 preservatives in creams, it is necessary to protect them from the air.
• the fluid product is therefore packaged in a retractable container so that the volume of the container corresponds precisely at any moment of use to the residual amount of the product it contains, the product never being in contact with the air at the inside of the container.
• the dispenser comprises a pump equipped with an inlet valve and an outlet valve. It is sealingly connected to the container and it has at the outlet of the pump a discharge channel opening on 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 ensure the airtightness of the distribution system.
• the valves of the pumps usually consist of complex elements incorporating balls or valves, both mobile, 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 the closed position. rest.
• the dispensing system is at rest when the pressures inside the container and inside the pump and the atmospheric pressure are identical.
• the inlet and outlet valves of the pump are then closed and airtight.
• 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 according to the invention consists of a rigid wall and a valve, it is characterized in that:
• said valve has a non-perforated flexible and deformable peripheral zone situated opposite the rigid wall
• the rigid wall is pierced by at least one orifice situated opposite the peripheral zone,
• valve is in the closed position when the peripheral zone of the valve is in contact with the rigid wall over its entire perimeter and in the open position when the peripheral zone of the valve is distant from the rigid wall over at least part of its perimeter .
• the valve, and the rigid wall constitute a sealed assembly when the peripheral zone is in contact on the whole of its perimeter with the rigid wall,
• valve is connected to the rigid wall by a non-deformable fixed connection
• valve moves from the closed position to the open position by deformation of the peripheral zone of the valve
• the valve is connected to the rigid wall by a fixed non-deformable connection
• a fixed non-deformable connection means that only a portion 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 outwardly from this attachment zone.
• the attachment zone may, 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 is a fixed connection, non-deformable and sealed. The assembly thus produced can withstand an upstream pressure higher than 6 bars.
• the fixing zone can not perform any movement in translation, rotation or deformation of any type with respect to the rigid wall.
• the valve is the only area of passage of the product 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 sealing. Indeed, the flexible wall is supported, that is to say compressed on the rigid wall.
• the dispensing system and the container delimit three spaces, the container, the pump and the outside. These three spaces are isolated from each other by the impervious barriers that 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, with respect 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.
• one or the other of the valves of the invention remains closed and sealed as long as the overpressure in an upstream space with respect to the downstream space which is contiguous thereto, is less than 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, that of the downstream space which is contiguous thereto. Beyond this minimum overpressure, the flexible wall of the valve is deformed. The valve is then in the open position and releases the passage from the upstream space to the downstream space.
• the value of the overpressure in the upstream space to open the valve may be modulated depending on the nature of the polymer, the thickness of the wall of the peripheral zone, and the diameter of the valve.
• the rigid wall may have several orifices. The system is sealed after 60 days in an oven at 55 ° C.
• the peripheral zone of the valve has a substantially conical shape before assembly, with a large base and a small base, and an inner face of the inner side of the cone.
• said peripheral zone In the assembled position, said peripheral zone has a deformation of the flattening type and induces elongation subsequent 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 area of contact 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 forming 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 outer diameter of the ring going from 5.67 mm to about 6.20 mm, 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 support force, much greater than a non-elastic deformation, which ensures the seal "at rest" and the overpressure of the upstream space.
• the valve is monobloc elastic polymer shape memory.
• the deformation of the polymer causes a prestressing in the peripheral zone of the valve which keeps it resting on the rigid wall when it is in the closed position.
• the valve is connected to the rigid wall by a fixing means disposed within the peripheral zone.
• the fixed connection between the rigid wall and the valve being located in the central portion of the valve, the surface of the deformable zone is strictly homogeneous, which ensures the homogeneity of the support at any point equidistant from the center of the valve.
• the valve is circular and the annular peripheral zone. This form is the easiest to achieve.
• the valve may have a different shape.
• the fastening 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 retained guarantee the sealing of the fastening means.
• the assembly thus produced can withstand an upstream pressure higher than 6 bars.
• the rod or the hollow cylinder and the rigid wall are part of a single piece.
• the number of parts necessary for the realization of the pump is thus reduced.
• the invention also relates to a pump-type device comprising an inlet valve and an outlet valve, of which at least a first valve with at least one of the previous features is disposed at an input and / or an output of the device.
• the pump is thus simple and all the easier to manufacture that the rigid walls are each part of a monobloc component 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 an airless flexible tube device 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 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 as a total or partial substitution of the cream removed.
• there is therefore a large amount of air in the tube especially when the tube wall has a large memory shape, which is often the case for the tubes used to package care creams.
• the tip of the flexible tube comprises a valve of the invention closing the orifice of said flexible tube.
• the pressure created in the tube opens the valve and releases the passage of the orifice of the tube.
• the valve closes prohibiting the penetration of air into the tube.
• said tip is capped with a second flexible shutter valve orifice, said second valve being fixed on the inner face of a chimney bearing on the free end of a rod, the rod and the chimney being monobloc 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 shutter valve of the orifice and the Valve of the check valve simultaneously open and close the passage as the user exerts a 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 made in the one-piece nozzle.
• FIG. 1 is a section of an airless distribution system whose pump is equipped with an inlet valve and an outlet valve according to the invention
• FIG. 2 is a section of the valve according to the invention in a first arrangement
• FIG. 3 is a section of the valve according to the invention in a second arrangement
• - Figure 4 is a sectional view of the valve according to the invention before assembly
• - Figure 5 is a sectional view of the valve of Figure 4 compressed after assembly
• FIGS. 6A, 6B, 6C are cross-sectional views of a flexible tube of the state of the art, respectively open, equipped with a removable plug called “screw”, equipped with a fixed plug called “capsule service,
• FIG. 7 is a section of the valve according to the invention capped with a reduction gear and arranged on a flexible tube,
• FIG. 8 is a section of the valve according to the invention capped a second flexible shutter valve, arranged on a flexible tube,
• the sealed non-return valve of the invention adapts to a first pump-type device equipping an airless distribution system (airless distributor).
• the airless dispenser of FIG. 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 allowing to constitute a closed space of variable volume constituting a distribution chamber 11.
• the dispenser is fixed on a container (not shown) disposed on the opposite side to the push button 2.
• the pump 1 is equipped with an inlet valve consisting of a valve 7 resting on the rigid wall 63 belonging to the first element 6a of the pump 1 and an outlet valve consisting of a valve 8 resting 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 ensures the barrier between the pump 1 and the outside, thus defining three sealed spaces relative to each other of the container, 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, whose generator is approximately a straight line at an angle A with the axis XX of the chimney 71, for example 45 ° ( Figure 4).
• the value of the angle A may vary depending on the polymer and the valve diameter 7.
• the preferable angle A combines the largest bearing surface and the greatest support force after assembly.
• the assembly consists of pressing the valve 7 on the wall 63, by fitting the chimney 71 on 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 for removing the product from the container.
• the flexible peripheral zone 70 seals up to 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 ensure the tightness of the valve and low enough to give a pleasant feeling to the user.
• the outlet valve 8 of the pump 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 of the inner side of the cone. In a preferred solution, it is strictly identical to the valve 7.
• the flexible wall 80 is placed in abutment on a rigid wall 35 belonging to the second element 3 constituting the pump, with characteristics identical to the bearing of the wall flexible 70 on the rigid wall 63.
• 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 identical properties to the inlet valve.
• the push button 2 is pierced with a conduit 22 which allows the dispensing of the product.
• the push button 2 is mobile. The movement of the pushbutton 2 back and forth causes a variation in volume of the variable volume distribution chamber 11.
• the overpressure causes the opening of the valve 8 of the outlet valve, the volume reduction of the distribution chamber and evacuation of the product outside.
• the depression causes the closing of the valve 8 of the outlet valve, opening the valve 7 of the inlet valve and filling the dispensing chamber 11 from the container (not shown).
• the sealed anti-return valve of the invention fits on a second device of the flexible tube type.
• the flexible tubes are generally composed of three components: 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 of the capsule, said capsule being fixed, in the case of the capsule called “service” 103 (FIG. 6C), or removable in the case of the capsule called “screw” 105 ( Figure 6B).
• the head of the tube 102 constitutes a one-piece assembly incorporating the attachment means 102-1 of the removable capsule 105 and the tip 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 fixed capsules 103 consist of two parts:
• a first part said base 103-1 is fixed permanently on the tube by the fixing means 102-1 and;
• a second part called cap 103-2 is fixed by means of a hinge on the base 103-1.
• the tip 103-3 delimiting the orifice 104 of the tube is integral with the base of the capsule.
• the cap has a 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 piece 6b is a one-piece assembly which joins the rod 62, the chimney 106, and the rigid wall 63 (see FIGS. 7 and 8). Said support piece 6b can be assembled with the tip 102-3, 103-3.
• the support piece 6b may be an element of the one-piece nozzle 102-3, 103-3.
• the tip is capped with a reducer 105 to protect the valve 7 and give the outlet port 104 the required diameter.
• the reducer 105 is fixed on the support part 6a in the chimney 106.
• the end piece is capped with a second flexible valve 107 for closing the orifice 104 in substitution for the gear unit 105 of FIG. 7.
• the second valve 107 is fixed on the internal face of FIG. the chimney 106 bears on the free end 621 of the rod 62.
• the valve constituting the shutter end and the non-return valve open and close simultaneously depending on whether the user exerts pressure on the wall of the tube or interrupts this pressure.
• the free end of the rod 62 and the wall 106 respectively serve as a rigid support wall and a means for 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 formed in the one-piece piece 6a.
• the valve 7 or 8 may be elastomeric type SEBS, TPP or TEV.
• the rigid wall 63, 35 may be high density polyethylene (HDPE), polycarbonate (PC), polypropylene (PP) or styrene acrylonitrile (SAN) and any type of rigid polymer compatible with the packaged product.
• HDPE high density polyethylene
• PC polycarbonate
• PP polypropylene
• SAN styrene acrylonitrile

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)

Applications Claiming Priority (3)

Publications (2)

Family

ID=55486767

Family Applications (2)

Family Applications Before (1)

Country Status (5)

Families Citing this family (7)

Family Cites Families (10)

• 2015
  • 2015-09-22 FR FR1558944A patent/FR3041409A1/fr active Pending
  • 2015-10-22 FR FR1560099A patent/FR3041412B1/fr active Active
• 2016
  • 2016-09-22 WO PCT/FR2016/000147 patent/WO2017051086A1/fr active Application Filing
  • 2016-09-22 EP EP16795111.0A patent/EP3352915B1/de active Active
  • 2016-09-22 EP EP16785208.6A patent/EP3352912B1/de active Active
  • 2016-09-22 US US15/762,549 patent/US10569285B2/en active Active
  • 2016-09-22 WO PCT/FR2016/052406 patent/WO2017051125A1/fr active Application Filing
  • 2016-09-22 CN CN201680067765.4A patent/CN109070115B/zh active Active

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