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
  • E03C1/02—Plumbing installations for fresh water
  • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
  • E03C1/084—Jet regulators with aerating means
• • 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
  • E03C1/02—Plumbing installations for fresh water
  • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
• • 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
  • E03C1/02—Plumbing installations for fresh water
  • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
  • E03C1/086—Jet regulators or jet guides, easily mountable on the outlet of taps

Definitions

• the invention relates to an aerator with an aerator housing that can be inserted into a water outlet of a sanitary outlet fitting and encloses a housing interior in which a jet breaker with breaker openings is provided, which divide the flowing water into a plurality of individual jets, and with a flow straightener forming the outlet front face of the aerator, which has a plurality of outlet openings, wherein a jet regulating device is provided in the housing interior in the flow path between the jet breaker and the flow straightener, which has regulating ribs oriented transversely to the flow direction of the flowing water.
• a flow regulator is known that can be mounted on the water outlet of a sanitary fitting to shape the outflowing water into a homogeneous, non-splashing, and optionally gently aerated stream.
• the cartridge-shaped flow regulator housing manufactured as an injection-molded plastic part, can be inserted into a sleeve-shaped outlet nozzle.
• This outlet nozzle has an external or internal thread that can be screwed onto a mating thread on the water outlet of the sanitary fitting.
• the screw connection between the outlet nozzle and the water outlet necessitates a round cross-section for both the outlet nozzle and the flow regulator housing.
• a flow breaker with multiple spaced-apart breaker openings is provided, in which The water flowing into the water pipe is divided into a corresponding number of individual jets by the jet separator openings.
• a flow straightener is provided at the outlet face of the known aerator. This flow straightener has a multitude of outlet openings to form the individual jets, which are swirled inside the housing and may be mixed with ambient air, into a homogeneous outgoing water jet.
• a jet regulating device is provided in the flow path between the jet separator and the flow straightener. This device has regulating ribs oriented transversely to the flow direction of the water.
• both the flow straightener forming the outlet face and the jet regulating device are formed by sieve plates made of a metal mesh. While the sieve openings of the sieve elements forming the flow straightener create the outlet openings, the interwoven metal wires of the sieve elements forming the jet regulating device create its regulating ribs. These sieve elements are inserted into the interior of the aerator housing from the outlet end face, before the outlet-side rim of the aerator housing is then bent inwards by thermal action on the plastic material used for the aerator housing, thus permanently holding these sieve elements in place within the aerator housing.
• a flow regulator is already known that has an inflow-side jet breakup device and an outflow-side flow straightener in its flow regulator housing, wherein a [missing element] is located in the flow path between the jet breakup device and the flow straightener.
• a jet regulating device is provided.
• the jet regulating device of this previously known aerator also features pin- or rib-shaped impact elements, wherein the pins or ribs serving as impact elements either project from the inside of at least one circumferential segment of the aerator housing and are integrally connected to it, or project at right angles over a flat side of a retaining part, which can be inserted into the sleeve-shaped aerator housing by bending it.
• this previously known aerator involves considerable effort in its design and manufacture.
• the task is therefore to create an aerator of the type mentioned at the beginning, whose components can be manufactured as simply as possible, even with a comparatively complex design of the aerator.
• the solution to this problem according to the invention in the case of the aerator of the type mentioned at the outset, consists in particular in the fact that the flow straightener and the jet regulating device can be inserted into the aerator housing from the downstream side of the aerator, that the jet regulating device has at least one inner wall to which the regulating ribs are formed on a flat side, and that the flow straightener and/or the jet regulating device can be fixed in the aerator housing by means of a positive or frictional fit.
• the aerator according to the invention has an aerator housing that can be inserted into the water outlet of a sanitary fitting to shape the emerging water into a homogeneous, non-splashing, and optionally also gently aerated water jet.
• the aerator housing of the aerator according to the invention encloses an interior space in which a jet splitter with splitter openings is provided. In these splitter openings The flowing water is split into a multitude of individual jets. Inside the aerator housing, these individual jets are further slowed and divided in a subsequent jet regulator before the water is recombined into a soft, homogeneous jet in a subsequent flow straightener.
• the flow straightener which has a multitude of outlet openings, forms the outlet end face of the aerator.
• the jet regulator is located, featuring regulating ribs oriented transversely to the flow direction of the water.
• the flow straightener and the jet regulator can be inserted into the aerator housing from the downstream side.
• the jet regulator has at least one inner wall to which the regulating ribs are integrally formed on a flat surface.
• the jet regulating vanes with their at least one inner wall and the regulating vanes molded onto them, can, like the jet regulator housing and the other components of the jet regulator according to the invention, be easily manufactured as injection-molded parts, without the need for complex injection molds.
• the flow straightener and/or the jet regulating device is fixed in the jet regulator housing by means of a positive or frictional fit.
• the flow straightener and/or the jet regulating device can be fixed in the jet regulator housing by means of a snap-fit or detent connection.
• the resulting snap-fit or snap connection formed by the positive locking between the flow straightener and/or the jet regulating device on the one hand and the jet regulator housing on the other hand ensures a secure and durable connection of these components of the jet regulator according to the invention.
• the aerator according to the invention can have a housing with a round cross-section and a similarly round jet outlet.
• a preferred embodiment is one in which the aerator is designed as a rectangular or flat aerator and/or has a non-round jet outlet with a greater longitudinal extent than its transverse extent.
• At least one guide groove open towards the outlet end face of the jet regulator is provided on the inner circumference of the jet regulator housing, into which guide groove the at least one inner wall can be inserted with one of its narrow edges oriented in the insertion direction.
• the simple installation of the aerator according to the invention is further facilitated if the aerator housing has a guide groove on opposite sides of an inner circumference, each open towards the outlet end face, and if the at least one inner wall, with its narrow edges oriented in the insertion direction, can be inserted into the guide grooves.
• correct positioning of the inner wall with the regulating ribs molded onto it is ensured in a simple manner.
• the regulating ribs can be molded onto one of the two flat sides of at least one inner wall.
• a particularly simple design in terms of construction and manufacture according to the However, the invention provides that the regulating webs are molded flat on both sides of at least one inner wall.
• the regulating ribs are formed on at least one flat side of the at least one inner wall in planes oriented transversely to the flow direction and preferably spaced apart from each other.
• the flowing water can be shaped particularly well in the successive rib planes of the jet regulating device if the regulating ribs arranged in a downstream plane are arranged 'with gaps' in line with the flow space provided between adjacent regulating ribs of a rib plane provided on the upstream side.
• the regulating ribs of the first rib plane in the direction of flow each have an upstream-side impact surface and/or if these regulating ribs are rounded on their downstream side.
• the regulating ribs of the rib plane provided on the downstream side in the direction of flow have a greater longitudinal extent oriented in the direction of flow compared to the rib width and/or if these regulating ribs are rounded on their inflow and/or outflow side.
• the aerator according to the invention is designed as a rectangular or flat aerator, it can be advantageous if the regulating ribs of the rib plane provided on the downstream side in the flow direction have a longitudinal extension curved towards an adjacent transverse wall of the aerator housing.
• the flat jet formed in such a rectangular or flat aerator retains its shape even over a longer distance of the outflowing water if the water flowing through the aerator housing is also effectively directed into the edge regions of the flat jet flowing along the transverse walls of the aerator housing in the area of the jet regulating device.
• the curvature of adjacent regulating ribs is greater in the case of the outer regulating rib located closer to the adjacent transverse wall compared to the inner regulating rib.
• a preferred embodiment according to the invention in which the regulating webs of the jet regulating device are arranged in at least three web planes, provides that the regulating webs of a web plane arranged between the first web plane and the web plane located downstream in the flow direction have a rounded and preferably a circular web cross-section. In this web plane, the flowing water is further slowed down and divided without causing excessive turbulence of the water flow.
• the flow straightener In order for the flow straightener provided at the outlet face to equalize and combine the outflowing water into a homogeneous overall jet without the flow straightener offering excessive flow resistance to the inflowing water, it is advantageous if the flow straightener has a grid structure of sets of intersecting straightener struts that define the outlet openings between them.
• the water flowing through the flow straightener can be shaped particularly well if the straightener struts of the grid structure have a greater longitudinal extent oriented in the direction of flow compared to the strut width.
• a particularly simple embodiment in which the jet separator can either be inserted into the jet regulator housing from the inflow side of the jet regulator up to a ring shoulder provided on the inner circumference of the housing or be integrally formed on the inner circumference of the jet regulator housing, provides that the jet separator is designed as a perforated plate which has the separator openings oriented in the direction of flow.
• the jet breaker in the jet regulator housing is positioned relative to the regulating ribs of the The first web plane on the upstream side is arranged such that these regulating webs are aligned with the disassembly openings in the direction of flow.
• rib-shaped spacers project from the inlet-side narrow edge of the inner wall or from the outlet side of the jet separator, keeping this inlet-side narrow edge at a distance from the jet separator.
• Preferred embodiments according to the invention provide that the flow straightener and the jet control device are integrally connected or form separate components of the jet control.
• the flow straighteners and aerator designed as separate parts are connectable to each other, and if, for this purpose, at least one plug-in pin, preferably at least two spaced-apart plug-in pins, protrudes/protrudes from one part, which can/can be inserted into an associated insertion opening on the other part.
• the plug(s) protrude on the downstream narrow edge of the inner wall and can be inserted into a corresponding insertion opening on the flow straightener.
• the jet regulator can be permanently and, if necessary, irremovably mounted to the flow straightener by means of its inner wall, provided that the plug(s) can be inserted into the corresponding insertion opening until a cross-sectional expansion provided at the free end of the plug(s) protrudes beyond the flow straightener.
• This cross-sectional expansion which, when the jet regulator is mounted, protrudes like a harpoon over the downstream side of the jet regulator, securely and firmly holds the flow straightener to the inner wall of the jet regulator.
• the inner wall is divided into at least two wall sections with flat-sided molded ribs. These at least two sections are then inserted one after the other into the guide grooves on the inner circumference of the aerator housing until the inner wall formed by these wall sections is complete.
• the inner wall is divided into wall sections, each of which has at least one plane of regulating webs molded on it.
• the regulating webs arranged in the individual web planes can be easily formed in different web cross-sections despite the comparatively small spacing.
• At least one inner wall in the aerator housing is arranged in such a way that the distance of the inner wall to a first longitudinal wall of the aerator housing is greater than the distance to the second longitudinal wall.
• the flow straightener and/or the jet regulating device is designed as a two-component or multi-component injection-molded part and/or is made of an elastomer plastic.
• a preferred embodiment according to the invention provides that at least a partial area of the rectifier bridges is made of an elastomeric plastic or has at least one surface made of an elastomeric plastic.
• the flow straightener has a grid structure consisting of a set of spaced-apart parallel first webs which intersect with at least one second web arranged perpendicular to the first webs, and that the first and second webs define the outlet openings of the flow straightener.
• At least one of the first webs and preferably at least a plurality of the first webs of the flow straightener have free web ends on both sides and that the first webs with their free web ends can preferably be detachably locked in a locking groove on the inner circumference of the aerator housing.
• At least one retaining fork and at least two spaced-apart retaining forks project from the side of the flow straightener facing the interior of the housing, in the fork opening of which the at least one inner wall of the aerator regulating device can be inserted.
• the forks limiting the fork opening of the at least one retaining fork are adapted to the wall thickness of the inner wall associated with the at least one retaining fork and are dimensioned in such a way that the inner wall is preferably held at right angles to the grid plane of the flow straightener defined by the grid structure, in particular in a tilt-proof manner.
• Figures 101, 106, 110, 115, 118, 121, and 124 depict various versions of an aerator.
• Aerators 101, 106, 110, 115, 118, 121, and 124 have an aerator housing 1 that can be inserted into the water outlet of a sanitary fitting (not shown here) to shape the emerging water into a homogeneous, non-splashing, and optionally also gently aerated water jet.
• the aerator housing 1 encloses an interior space in which a jet splitter 2 with splitter openings 3 is provided.
• the plate-shaped jet splitter 2 with its splitter openings 3 is integrally formed on the inner circumference of the aerator housing 1.
• the flowing water is divided into a multitude of individual jets. These individual jets are further slowed and dispersed inside the aerator housing 1 in a subsequent jet regulating device 4 before the water flowing through is recombined into a soft, homogeneous jet in a subsequent flow straightener 5.
• the jet regulating device 4 is provided inside the housing.
• This device has regulating ribs 7 oriented transversely to the flow direction of the water.
• the flow straightener 5 and the jet regulating device 4 can be inserted into the aerator housing 1 from the outlet face A of the aerator.
• the jet regulating device 4 has at least one inner wall 8 to which the regulating ribs 7 are integrally formed on a flat surface.
• the jet control device 4 with its at least one inner wall 8 and the regulating ribs 7 molded onto it, can, like the jet control housing 1 and the other components of the jet controls 101, 106, 110, 115, 118, 121, 124 shown here, be easily manufactured as injection-molded parts, and in particular as plastic injection-molded parts, without the need for complex injection molds.
• the flow straightener 5 and the jet control device 4 are fixed to the inner circumference of the jet control housing 1 by means of a positive or frictional fit such that These components 4, 5 will not unintentionally fall out of the aerator housing 1 even under the pressure of the oncoming water.
• the aerators shown here have a pre-filter 9 on the inlet side of their aerator housing 1, which is designed to filter out any limescale and dirt particles that may be carried in the incoming water before they can impair the function of the aerator inside the housing.
• a flow regulator 10 can be arranged between the pre-filter 9 and the jet separator 2, which regulates the flow rate of the water flowing from the inlet side to the opposite outlet end face A of the aerator housing 1 to a defined maximum value, independent of the pressure.
• the aerator is designed as a rectangular or flat aerator and has a non-circular jet outlet that has a greater longitudinal extent than its transverse extent.
• the jet control device 4 In order to position the jet control device 4 correctly inside the jet control housing 1, the following is required on the inner circumference of the jet control housing: Figures 1 to 23
• the aerators 101, 106, 110, 115, 118 and 121 shown are each provided with at least one guide groove 11 open towards the outlet end face A of the aerator, into which at least one inner wall 8 of the aerator regulating device 4 can be inserted with one of its narrow edges oriented in the insertion direction.
• the aerator housing 1 of aerator versions 101, 106, 110, 115, 118 and 121 has a guide groove on opposite sides of the inner circumference of the housing, open towards the outlet end face A. 11, wherein at least one inner wall 8, with its narrow edges oriented in the insertion direction, can be inserted into the guide grooves 11. In this way, correct positioning of the inner wall 8 with the molded-on adjusting ribs 7 is easily ensured.
• the regulating ribs 7 are integrally formed on both sides of at least one inner wall 8. To shape the water flowing along the jet regulating device 4 and its regulating ribs 7 as desired, the regulating ribs 7 are integrally formed on at least one flat side of the at least one inner wall 8 in planes oriented transversely to the flow direction and preferably spaced apart from one another.
• the regulating ribs 7 arranged in a downstream plane are staggered in the extension of the flow space provided between adjacent regulating ribs of a rib plane provided on the upstream side.
• the regulating webs 7 of the first web plane in the direction of flow each have an upstream impact surface 12 and are rounded on their downstream side.
• the regulating webs 7 of the web plane provided on the downstream side in the direction of flow have a greater longitudinal extent compared to the web width, oriented in the direction of flow, and are both on their The inflow and outflow sides are both rounded.
• the regulating webs 7 of a middle web plane arranged between the first web plane and the web plane located downstream in the flow direction have a rounded and preferably a circular web cross-section.
• this middle web plane the flowing water is further slowed down and divided without causing excessive turbulence in the water flow.
• the flow straightener 5 of the jet regulators 101, 106, 110, 115, 118, 121 and 124 shown here has a grid structure consisting of sets of intersecting straightener struts 13, which define the outlet openings 6 of the flow straightener 5.
• the straightener struts 13 of the grid structure have a greater longitudinal extent, oriented in the direction of flow, compared to the strut width.
• the jet breaker 2 in the jet regulator housing 1 is arranged relative to the regulating ribs 7 of the first rib plane on the upstream side such that these regulating ribs 7 are arranged in the direction of flow in the alignment of the breaker openings 3.
• At least two rib-shaped spacers 14 are provided on the downstream side of the jet splitter or – as in this case – on the upstream narrow edge of the inner wall 8. These spacers keep this upstream narrow edge at a distance from the jet splitter 2. These rib-shaped spacers 14 ensure sufficient distance between the downstream side of the jet splitter 2 and the inner wall 8, so that a mixing zone can form in this area within the interior of the jet regulator housing 1.
• the flow straightener 5 and the jet regulating device 4 are integrally connected, while in the other aerator designs 106, 110, 115, 118, 121 and 124, the flow straightener 5 and the jet regulating device 4 form separate structural components or parts of these aerators.
• the flow straighteners 5 and the aeration regulating device 4 which are manufactured as separate components, can be connected to one another.
• at least two connections are made to one component, specifically to the inner wall 8 of the aeration regulating device 4.
• Spacing between plug pins 15 are provided, each of which can be inserted into a corresponding insertion opening 16 on the other component, in this case, the flow straightener 5.
• the plug pins 15 protrude from the downstream narrow edge of the inner wall 8 and can each be inserted into a corresponding insertion opening 16 on the flow straightener 5 until a cross-sectional extension provided at the free end of the plug pins 15 projects beyond the flow straightener 5.
• This cross-sectional extension which projects harpoon-like over the downstream side of the aerator 115 when the aerator is mounted, securely and firmly holds the flow straightener 5 to the inner wall 8 of the aeration device 4.
• the inner wall 8 is divided into at least two, and here into three, wall sections 17, to which the regulating ribs 7 are integrally formed.
• the wall sections 17 are successively inserted into the guide grooves 11 on the inner circumference of the aerator housing 1 until the inner wall 8 formed by these wall sections 17 is created.
• a plane of regulating ribs 7 is integrally formed onto each of the wall sections 17.
• the regulating webs 7 arranged in the individual web planes can be well formed even in different web cross-sections despite the comparatively small distances.
• the plate-shaped flow straightener 5 with the inner wall 8 of the jet regulating device 4 formed at a right angle to it is inserted into the interior of the aerator housing 1 from the outflow side A of the aerator 101 until a detent provided on the outer circumference of the flow straightener 5 engages in a
• the complementary locking groove on the inner circumference of the aerator housing snaps into place.
• This positive-locking connection of the flow straightener 5 to the inner circumference of the aerator housing 1 also secures the aeration regulating device 4, which is molded onto the flow straightener 5, inside the housing.
• the jet regulating device 4 of the [unclear text] can also be [unclear text] in a similar way.
• Figures 15 to 17 The illustrated aerator design 115 is fixed in the interior of the aerator housing 1. If the aerator regulating device 4 is connected to the flow straightener 5, these components 4, 5 can be held securely and firmly in the aerator housing 1 if, additionally or instead, a latching or snap connection cooperating with the inner circumference of the aerator housing 1 is provided on the inner wall 8 of the aerator regulating device 4 and, in particular, on the narrow sides of this inner wall 8.
• the aerator regulating device 4 is first inserted into the aerator housing 1 from the outflow side, before the plate-shaped flow straightener 5 is then inserted into the aerator housing 1 and snapped or latched onto the inner circumference of the aerator housing 1 in such a way that the aerator regulating device 4 is also held securely and firmly in the interior of the aerator housing 1.
• the regulating webs 7 of the web plane provided on the downstream side in the direction of flow are directed towards an adjacent
• the transverse wall 18 of the aerator housing 1 has a curved longitudinal extension, wherein this curvature of adjacent regulating webs 7 is greater for the outer regulating web 7 which is located closer to the transverse wall 18 compared to the inner regulating web 7.
• the aerators shown here, and in particular aerator design 101 have at least one slot-shaped ventilation opening 21 on only one of their longitudinal walls 19, and specifically only on the longitudinal wall 19 facing away from the user in the operating position.
• This opening leads into the mixing zone located below the jet breaker 2 in the direction of flow, allowing ambient air to flow into the interior of the aerator housing 1.
• the aerator housing 1 has a molded recess 20 on its outer circumference on the longitudinal wall 19 facing away from the user in the operating position. This recess extends from the outlet side A of the aerator housing to the ventilation opening 21.
• the regulating webs 7, which extend with their free web ends to the adjacent longitudinal wall 19, have different web lengths on the two sides of the inner wall 8, the flowing water is distributed evenly over the The cross-section of the aerator housing 1 is distributed because the longitudinal axes of the separating openings 3 of the aerator separator 2 are each aligned approximately with the center of the adjacent regulating web 7.
• the flow straightener 5 and/or the jet regulating device 4 can be designed as a two-component or multi-component injection-molded part and, in particular, made of an elastomeric plastic 22.
• the flow straightener 5 is designed as a two-component injection-molded part, wherein a rigid, elastic plastic component 23, shown in the figures with fine dashed lines, forms a frame stiffening the flow straightener, while the water-wetted grid structure and/or the outer circumference of the flow straightener 5, which rests against the inner circumference of the housing, is made, at least superficially, of an elastomeric plastic 22, shown here with cross-hatching and appearing significantly lighter.
• a preferred embodiment is one in which at least a portion of the straightener webs 13 is made of an elastomeric plastic 22 or at least has a surface made of an elastomeric plastic 22.
• FIG. 24 and 25 is a modified further version 124 of a rectangular aerator in a longitudinal section (cf. Fig. 24 ) and in a perspective top view of its flow straightener 5 forming the outlet end face of this jet regulator 124 (cf. Fig. 25 ) shown.
• the flow straightener 5 of this jet regulator 124 has a grid structure consisting of a set of spaced-apart parallel first straightener webs 13, which are connected to at least one second rectifier bridge 13' and here intersect with two spaced-apart second rectifier bridges 13' at crossing nodes. At least a majority of the first rectifier bridges 13 have free bridge ends 24 on both sides, which bridge ends 24 are each formed as locking lugs.
• the flow straightener 5 of the aerator 124 can be detachably locked in a locking groove 25 arranged on the inner circumference of the aerator housing 1, preferably also of the aerator 124, with its free web ends 24.
• the first and second straightener webs 13, 13' define the outlet openings 6 of the downstream flow straightener 5 between themselves and, if applicable, also between themselves and the inner circumference wall of the aerator housing 1.
• At least one retaining fork 26 and preferably at least two spaced-apart retaining forks 26 protrude from the side of the flow straightener 5 facing the interior of the aerator housing 1, in the fork opening 27 of which at least one inner wall 8 or at least one of the inner walls 8 of the aerator 4 can be inserted.
• the spacing of the forks 28, 29 defining the fork opening 27 of the at least one retaining fork 26 is adapted to the wall thickness of the inner wall 8 associated with the at least one retaining fork 26 and is dimensioned such that the inner wall 8 is preferably held at right angles to the grid plane defined by the grid structure of the flow straightener, and in particular is held securely against tilting on this flow straightener 5. While the grid structure of the flow straightener is defined in the Figures 1 to 23
• the aerators 101, 106, 110, 115, 118 and 121 shown are enclosed by a circumferential retaining ring.

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• 2020
  • 2020-06-19 DE DE202020103566.5U patent/DE202020103566U1/de active Active
• 2021
  • 2021-01-08 CN CN202110027941.4A patent/CN113818525B/zh active Active
  • 2021-01-08 CN CN202120062148.3U patent/CN215829546U/zh not_active Withdrawn - After Issue
  • 2021-06-07 WO PCT/EP2021/065101 patent/WO2021254801A1/fr not_active Ceased
  • 2021-06-07 CN CN202180043360.8A patent/CN115803499A/zh active Pending
  • 2021-06-07 EP EP24181856.6A patent/EP4421255A3/fr active Pending
  • 2021-06-07 EP EP21731445.9A patent/EP4127338B1/fr active Active
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