US20220354236A1 - Wiper for a liquid or pasty product applicator - Google Patents
Wiper for a liquid or pasty product applicator Download PDFInfo
- Publication number
- US20220354236A1 US20220354236A1 US17/621,686 US202017621686A US2022354236A1 US 20220354236 A1 US20220354236 A1 US 20220354236A1 US 202017621686 A US202017621686 A US 202017621686A US 2022354236 A1 US2022354236 A1 US 2022354236A1
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- US
- United States
- Prior art keywords
- wiper
- lip
- wiping sleeve
- applicator
- attaching part
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
- A45D34/042—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like
- A45D34/045—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like connected to the cap of the container
- A45D34/046—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like connected to the cap of the container comprising a wiper
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
- A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
- A45D40/262—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like
- A45D40/265—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like connected to the cap of the container
- A45D40/267—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like connected to the cap of the container comprising a wiper
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2200/00—Details not otherwise provided for in A45D
- A45D2200/10—Details of applicators
- A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
Definitions
- This disclosure relates to an assembly for applying a liquid or pasty product, and more particularly a wiper for an applicator of a liquid or pasty product.
- a wiper can be used in particular in the field of cosmetics.
- wiper may be more suitable for other products or other applicators.
- a droplet may remain at the end of the applying member despite the action of the wiper.
- Such a droplet may cause an esthetically displeasing clump on the part of the body to be made up, or even fall from the applicator before it can be deposited, which is dirtying. There is therefore a need for a new type of wiper.
- this disclosure relates to a wiper for an applicator of a liquid or pasty product, comprising an attaching part configured to attach the wiper to the opening of a container able to contain said product, and a tubular wiping sleeve connected to the attaching part, in which the wiping sleeve is more flexible than the attaching part, and the end of the wiping sleeve opposite the attaching part forms an annular lip, chamfered with respect to a direction of withdrawal of the applicator through the wiper.
- the attaching part is configured to attach the wiper at the opening of a container. It will be understood that this is the opening through which the applicator can be inserted into and withdrawn from the container to impregnate it with the product contained in the container.
- the wiper can be attached to the container such that any withdrawal of the applicator through the opening makes the applicator also pass through the wiper.
- the shape of the wiper constricts the way in which the applicator passes through the wiper. Consequently, the shape of the wiper intrinsically defines a direction of insertion and withdrawal of the applicator through the wiper, especially given the conventional shapes and dimensions of applicators.
- the direction of insertion and the direction of withdrawal being generally colinear, the terms will subsequently be used interchangeably, unless otherwise specified explicitly or in view of the context.
- the direction of withdrawal may substantially correspond to the axis of the wiper, or even the axis of the wiping sleeve, the geometry of the wiper and the conventional configuration of an applicator allowing at most a limited travel about this axis.
- sleeve is understood to mean a tubular element.
- a sleeve has its dimension along the axis of the tube greater than its thickness transverse to said axis.
- the dimension of the wiping sleeve along its axis may be between 5 mm (millimeters) and 20 mm.
- the thickness of the wiping sleeve transverse to its axis may be between 0.3 mm and 2 mm.
- the lip formed at one end of the wiping sleeve, defines an orifice for the passing of the applicator though the wiper.
- the orifice being a chamfer, it is inclined with respect to a plane orthogonal to the direction of withdrawal, and/or with respect to a plane orthogonal to the axis of the wiper, or even the axis of the sleeve.
- the term “chamfered lip” will subsequently be used.
- the flexibility of the wiping sleeve and the lip provided with a chamfer interact to improve the wiping of the applicator: owing to the chamfered shape of the lip, during the passing of the applicator through the wiping sleeve along the direction of withdrawal, the distal part of the lip, in response to the deformation of the whole wiping sleeve, is displaced to scrape the end of the applicator and remove any droplet of product that might otherwise remain on the applicator. Furthermore, owing to its flexibility, the wiping sleeve can deform or adapt as well as possible to the shape of the applicator to be wiped.
- the wiping sleeve may deform by curving back into itself, which makes it possible to follow the shape of the applicator as close as possible and to reject the excess product toward the inside of the container; this particular type of deformation is sometimes known as the “sock effect”.
- the attaching part has less flexibility than the wiping sleeve, the attachment of the wiper on the container can be effectively maintained upon the passing of the applicator through the wiper.
- the wiping sleeve comprises a frustoconical part tapering in the direction of the lip, the lip being defined by the end of the frustoconical part.
- the frustoconical part can be defined by a cone having an angle at the tip between 40° and 140°, or even 45° and 120°.
- the axis of the cone may be inclined with respect to the axis of the wiper, which makes it possible to precisely define the position and orientation of the orifice.
- the presence of a frustoconical part increases the capacity of the wiping sleeve to deform on itself to obtain the sock effect.
- the inclined wall of the wiping sleeve favors the draining of the excess product, wiped off by the wiper, toward the container.
- the lip defines, in cross-section, a convex orifice.
- a convex orifice is such that for any two points belonging to the orifice, the straight-line segment linking these two points is entirely contained in the orifice. This facilitates the deformation of the lip and allows it to better scrape the applicator.
- the orifice can be of circular or elliptical shape.
- the wiping sleeve comprises a wall adjacent to the lip, the thickness of the wall being less than 0.7 mm, preferably less than 0.5 mm.
- the thickness of the wall may be greater than 0.1 mm, preferably 0.3 mm.
- said wall independently of its thickness, has a hardness between 30 and 60 Shore A.
- the lip is contained in a plane forming an angle between 10° and 80°, preferably between 20° and 70°, preferably between 30° and 60°, preferably approximately 45° with the direction of withdrawal.
- the attaching part is made of a first material and the wiping sleeve is made of a second material having a lesser hardness and/or stiffness than that of the first material. This further facilitates the deformation of the wiping sleeve and prevents damage to the applicator.
- the hardness can be measured on the Shore or Vickers scale.
- the stiffness can be measured using the Young modulus.
- the greatest length of the wiping sleeve (more particularly the length of the aforementioned frustoconical part, excluding an portion fastening the wiping sleeve to the attaching part) in the direction of withdrawal is greater than the widest inner radius of the wiping sleeve transverse to said direction. Owing to these features, by deforming, the wiping sleeve can reach all the way to the most central parts of the applicator, which increases the effectiveness of the wiping.
- the orifice defined by the lip has a diameter between 2 and 8 mm, preferably between 3 and 7 mm, still preferably between 4 and 6 mm, preferably approximately 5 mm. This dimension is preferably measured in the plane of the orifice, the orifice being flat or essentially flat.
- the diameter of the orifice denotes any dimension of the orifice, for example its greatest dimension and/or its smallest dimension, or any dimension of the orifice.
- This disclosure also relates to an assembly for applying a liquid or pasty product comprising a container having an opening, an applicator having a stem provided with an applying member and a wiper as defined previously, attached to the opening of the container.
- the wiper is attached to the container such that the wiping sleeve is more inside the container than the attaching part. This makes it possible to better conserve the product inside the container.
- the smallest inner diameter of the wiping sleeve transverse to the direction of withdrawal is less than a diameter of a cross-section of the stem.
- the wiping sleeve has at least one part tightened onto the stem, able to scrape the product along the stem.
- the smallest inner diameter of the wiping sleeve transverse to the direction of withdrawal can be reached at the level of the lip or of a part of the wiping sleeve distant from the lip, according to the shape of the wiping sleeve.
- the applying member is off-center with respect to an axis of the stem, or the orifice is off-center with respect to the direction of withdrawal.
- the axis of the stem generally corresponds to the direction of withdrawal.
- the applying member has a concave part in its cross-section.
- Said concave part can serve as a reserve of product. Specifically, the lip of the wiper, deformed and taut about the applying member, does not enter into the concave part forming the reserve, which can therefore conserve surplus product.
- the surplus of product can be delivered to the applying member gradually as the applicator is used, which avoids recharging the applicator too often.
- the applicator has at least one dimension greater than the stem transverse to the stem.
- the wiping of the applying member is therefore done even more closely than the wiping of the stem.
- the applying member is liable to cause a deformation by sock effect of the wiping sleeve even if the stem does not cause such a deformation. This results in better wiping.
- FIG. 1 is a perspective view of a wiper according to an embodiment.
- FIG. 2 is a bottom view of the wiper of FIG. 1 .
- FIG. 3 is a section view along the plane III-III of FIG. 2 .
- FIG. 4 is an exploded perspective view of the wiper of FIG. 1 .
- FIG. 5 illustrates the wiper of FIG. 3 mounted on a container and cooperating with an applicator according to an embodiment.
- FIG. 6 is a side view of the applicator of FIG. 5 .
- FIG. 7 is a view of the applicator in perspective and in section along the plane VII-VII of FIG. 6 .
- a wiper according to an embodiment will be described with reference to FIGS. 1 to 4 .
- the wiper 10 is described at rest, i.e. in the absence of any forces incurring deformations perceptible to the naked eye.
- FIG. 1 shows, in perspective, a wiper 10 configured to wipe an applicator of a liquid or pasty product.
- the wiper 10 has a generally tubular, or even annular, shape about an axis X.
- the axis X of the wiper 10 defines an axial direction, which is also a direction of withdrawal of the applicator through the wiper 10 .
- a radial direction is a direction perpendicular to this axis X and cutting this axis X.
- an axial plane is a plane containing the axis X of the wiper and a radial plane is a plane perpendicular to this axis X.
- a circumference extends as a circle belonging to a radial plane and the center of which belongs to the axis X of the wiper.
- a tangential or circumferential direction is a direction tangent to a circumference; it is perpendicular to the axis X of the wiper but does not pass through the axis X.
- the adjectives “inner” and “outer” are used with reference to a radial direction such that the inner part of an element is, along a radial direction, closer to the axis X of the wiper than the outer part of the same element.
- the wiper 10 comprises an attaching part 20 and a wiping sleeve 30 .
- the attaching part comprises a body 28 .
- the body 28 is annular about the axis X, substantially cylindrical, here, with revolution symmetry.
- the attaching part 20 comprises a flange 22 , here radially protruding outwards, typically at the axial end of the body 28 opposite the wiping sleeve 30 .
- the flange 22 forms an axial stop for the engagement of the attaching part 20 in the opening 56 of the container 50 .
- the flange 22 can be annular.
- the attaching part 20 also comprises, in this embodiment, a seam 24 radially projecting outside the body 28 , in a portion of the body 28 located between the wiping sleeve 30 and the flange 22 .
- the seam 24 is intended to cooperate with the neck 54 of the container 50 , for example by tightening or latching, in order to hold the attaching part 20 in the neck 54 of the container 50 .
- the attaching part 20 is configured to attach the wiper 10 to the opening 56 of the container 50 .
- the attaching part cooperates with the edges of the opening 56 , here the neck 54 , to keep the wiper 10 housed inside the opening 56 , here in the neck 54 , at least over most of it or, as illustrated, all of it. By doing this, when the applicator 60 is inserted or withdrawn through the opening 56 , it also passes through the wiper 10 .
- the attaching part 20 could take another form than that previously described, for example it may take the form of one or more attaching lugs.
- the wiping sleeve 30 is connected to the attaching part 20 , here at the axial end of the attaching part 20 opposite the flange 22 .
- the wiping sleeve 30 comprises a fastening portion 32 .
- the fastening portion 32 is annular about the axis X, substantially with revolution symmetry.
- the fastening portion 32 is extended by a substantially frustoconical wall 34 , here about the axis X.
- the wall 34 may be solid, in the sense that it does not comprise any radial opening.
- the wall 34 may be tapered in the axial direction, from the fastening portion 32 all the way to the end opposite the wall 34 forming a lip 38 .
- the lip 38 is therefore located at the end of the wiping sleeve 30 opposite the attaching part 20 .
- the lip 38 is annular and extends continuously about the axis X.
- the lip 38 thus defines an orifice 40 for the passing of the applicator.
- the wiping sleeve 30 is tubular.
- the axis of the wiping sleeve 30 is colinear with the axis X of the wiper 10 .
- the orifice 40 is chamfered with respect to a direction of withdrawal of the applicator through the wiper 10 .
- the direction of withdrawal being colinear with the axis X of the wiper 10
- the lip 38 and the orifice 40 are inclined with respect to a plane orthogonal to the axis X of the wiper, as is clearly obvious from FIG. 3 .
- the lip 38 may be contained in a plane, as in this embodiment, or substantially contained in a plane, then called the median plane.
- the direction of withdrawal C and the plane of the lip 38 or, where applicable, its median plane form between them an angle A different from 90°, preferably also different from 0°, for example between 10° and 80°, for example, as illustrated, approximately 45°.
- the lip 38 being chamfered, it has a proximal end 38 a , which is the part of the lip 38 the closest to the attaching part 20 , and a distal end 38 b , which is the part of the lip 38 the furthest from the attaching part 20 .
- the orifice 40 may be circular in the plane to which it belongs.
- the orifice may be a disk of 5 mm in diameter. Due to its inclination, in a view transverse to the axis X, it then appears elliptical, as shown in FIG. 2 .
- the orifice 40 could be elliptical in its plane such that its orthogonal projection along the axis X is circular or not; in this embodiment, one would then see a circle from a similar view to that of FIG. 2 .
- the wall 34 can be dimensioned such that the greatest length L of the wiping sleeve 30 , or even of the wall 34 , in the direction of withdrawal X, is greater than the greatest inner radius R of the wiping sleeve 30 transversely to said direction X, as illustrated in FIG. 3 .
- the distal end 38 b of the lip 38 can, by deforming inward, reach a relatively close part of the axis X, as will be described below.
- the wall 34 is thinned with respect to the fastening portion 32 , which confers on the wall 34 a relatively high degree of flexibility to perform the wiping, and to the fastening portion 32 a relatively high stiffness to make a successful connection with the attaching part 20 .
- the wall 34 can be at least twice as thin, or even at least three times as thin, as the fastening portion 32 .
- the wall 34 here has a substantially constant thickness.
- the fastening portion 32 and the wall 34 meet at a join 33 .
- the join 33 effects a continuous transition between the fastening portion 32 and the wall 34 .
- the join 33 may define at least one of the following changes: change of shape of the wiping sleeve 30 (going from an overall cylindrical shape—of the fastening portion 32 —to an overall frustoconical shape—of the wall 34 ); change of thickness of the wiping sleeve 30 (reduction by a factor of at least two of the thickness between the fastening portion 32 and the wall 34 ); change of flexibility of the wiping sleeve 30 (here essentially linked to the change of thickness).
- the attaching part 20 is, in this embodiment, a separate part from the wiping sleeve 30 .
- the attaching part 20 is made of a first material and the wiping sleeve 30 is made of a second material having a lesser hardness and/or a stiffness than that of the first material.
- the wiping sleeve 30 is more flexible than the attaching part 20 .
- the attaching part 20 can be made of at least one of the following materials: low-density polyethylene, high-density polyethylene.
- the wiping sleeve 30 can be made of an elastomer, typically a thermoplastic elastomer. The material of the wiping sleeve 30 can be chosen such that its hardness is between 30 and 60 Shore A.
- the attaching part 20 and the wiping sleeve 30 may be connected to one another by any known suitable means, for example by assembly. Furthermore, the wiping sleeve 30 can be found in the extension of the attaching part 20 . In this embodiment, the wiping sleeve 30 is first manufactured, then the attaching part 20 is overmolded on the wiping sleeve 30 . The overmolding, known per se, makes a chemical bond between the attaching part 20 and the wiping sleeve 30 . To further limit the risks of separation of the attaching part 20 of the wiping sleeve 30 , provision may be made, independently of the preceding, for one or more mechanical engagements between the attaching part 20 and the wiping sleeve 30 .
- the axial engagement is allowed here, by additional annular radial ribs, while the circumferential engagement is allowed, here, by the cooperation of dogs 36 of the wiping sleeve and apertures 26 corresponding to the attaching part 20 .
- the dogs 36 and the apertures 26 have a radial component and a circumferential component.
- provision should be made for the systems for engaging the wiping sleeve 30 namely the rib and the dogs 36 , to be provided rather on the fastening portion 32 .
- the attaching part 20 and the wiping sleeve 30 could form two portions of one and the same part.
- the difference in flexibility between the attaching part 20 and the wiping sleeve 30 can then be obtained by differences in thickness or any other method identified as suitable by those skilled in the art.
- FIG. 5 schematically illustrates, in section, an assembly for applying a liquid or pasty product comprising a container 50 , an applicator 60 and the wiper 10 described previously.
- the container is a bottle and comprises a body 52 and a neck 54 defining an opening 56 . More generally, any container having an opening can be used.
- the wiper 10 is attached to the opening 56 of the container 50 . More precisely, in this case, the wiper 10 is mounted inside the neck 54 , the neck 54 then being housed at the stop in the shoulder formed between the body 28 of the attaching part 20 and the flange 22 .
- the applicator 60 comprises a stem 62 equipped with an applying member 64 , here provided at one end of the stem 62 .
- the applying member 64 is, in side view, of the general shape of a drop of water, the tip of the drop being opposite the stem 62 .
- the applying member 64 is furthermore off-center with respect to an axis Y of the stem.
- the composition of the applying member 64 can be provided to absorb the liquid or pasty product contained in the container 50 ; for example, the applying member 64 may comprise, at least in part, a porous material. Alternatively or additionally, the applying member 64 may be flocked.
- the applicator 60 In the initial position, the applicator 60 is inserted into the container 50 , such that the wiper 10 cooperates with the stem 62 .
- the smallest inner diameter D of the wiping sleeve 30 transversely to the direction of withdrawal X is less than a diameter of a cross-section of the stem 62 .
- the smallest inner diameter D here corresponds to the smallest diameter of the orifice 40 , in projection parallel to the direction of withdrawal X.
- the deformation of the wiping sleeve 30 about the stem 62 has the effect of centering the stem 62 with respect to the wiper 10 , so that the direction of withdrawal X is colinear with the axis Y of the stem.
- the lip 38 of the wiper 10 comes into contact with the applying member 64 .
- the applying member 64 has a transversal dimension greater than that of the stem 62 , so of necessity greater than the smallest inner diameter D of the wiping sleeve.
- the lip 38 can suitably scrape the applying member 64 .
- the proximal end 38 a of the lip 38 can turn about itself toward the inside of the wiping sleeve 30
- the distal end 38 b of the lip 38 can turn about itself toward the inside of the wiping sleeve 30 .
- the inner parts of the lip 38 between the proximal end 38 a and the distal end 38 b , take up a position in which they are more or less turned about themselves, as a function of the positions of the proximal end 38 a and of the distal end 38 b .
- FIG. 5 An example of deformation of the lip 38 and of the wiping sleeve 30 is schematically illustrated in FIG. 5 .
- the lip 38 being chamfered, it is the proximal end 38 a which is mainly in contact with the applying member 64 .
- the deformation of the lip 38 at its proximal end 38 a drags, by distribution of the efforts along the lip 38 , the distal end 38 b toward the proximal end 38 a .
- the distal end 38 b taut, approaches the axis X of the wiper 10 , which makes it capable of scraping the drop of product that may form at the end of the applying member 64 .
- the applying member 64 is correctly wiped.
- FIG. 7 shows that, as indicated previously, the applying member 64 may comprise, in cross-section, a concave part 68 , here fashioned by the very shape of the applying member 64 .
- the lip 38 deforms about the applicator.
- the lip 38 a section of which is schematically depicted by dotted lines on FIG. 7 , is taut and therefore does not enter into the concave part 68 .
- a reserve of product can be conserved within the applying member 64 itself.
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Abstract
A wiper for an applicator of a liquid or pasty product, including an attaching part configured to attach the wiper to the opening of a container able to contain the product, and a tubular wiping sleeve connected to the attaching part, in which the wiping sleeve is more flexible than the attaching part, and the end of the wiping sleeve opposite the attaching part forms an annular lip, the lip defining an orifice chamfered with respect to a direction of withdrawal (X) of the applicator through the wiper.
Description
- This disclosure relates to an assembly for applying a liquid or pasty product, and more particularly a wiper for an applicator of a liquid or pasty product. Such a wiper can be used in particular in the field of cosmetics.
- To apply a liquid or pasty product, for example in the field of make-up or cosmetics, it is known to use various applicators, suitable for products to be applied to the body or face. Conventionally, most of these applicators comprise an applying member mounted on the end of a stem. The applying member is inserted into a container containing the cosmetic to impregnate it therewith, then withdrawn from the container to continue to the application in the strict sense. To remove from the applying member any excess product sticking thereto, provision is generally made for a wiper on the neck of the container. For example, the international application WO 2016/156742 A1 of the Applicant describes a wiping device particularly suitable for a mascara brush, which makes it possible to distribute the mascara on the brush and push back the excess mascara on the brush toward the container.
- Although such a device is satisfactory, other categories of wiper may be more suitable for other products or other applicators. Specifically, according to the type and viscosity of the product to be applied and the shape of the applying member, a droplet may remain at the end of the applying member despite the action of the wiper. Such a droplet may cause an esthetically displeasing clump on the part of the body to be made up, or even fall from the applicator before it can be deposited, which is dirtying. There is therefore a need for a new type of wiper.
- For this purpose, this disclosure relates to a wiper for an applicator of a liquid or pasty product, comprising an attaching part configured to attach the wiper to the opening of a container able to contain said product, and a tubular wiping sleeve connected to the attaching part, in which the wiping sleeve is more flexible than the attaching part, and the end of the wiping sleeve opposite the attaching part forms an annular lip, chamfered with respect to a direction of withdrawal of the applicator through the wiper.
- The attaching part is configured to attach the wiper at the opening of a container. It will be understood that this is the opening through which the applicator can be inserted into and withdrawn from the container to impregnate it with the product contained in the container. The wiper can be attached to the container such that any withdrawal of the applicator through the opening makes the applicator also pass through the wiper.
- Furthermore, the shape of the wiper, particularly the tubular shape of the wiping sleeve, constricts the way in which the applicator passes through the wiper. Consequently, the shape of the wiper intrinsically defines a direction of insertion and withdrawal of the applicator through the wiper, especially given the conventional shapes and dimensions of applicators. The direction of insertion and the direction of withdrawal being generally colinear, the terms will subsequently be used interchangeably, unless otherwise specified explicitly or in view of the context. For example, the direction of withdrawal may substantially correspond to the axis of the wiper, or even the axis of the wiping sleeve, the geometry of the wiper and the conventional configuration of an applicator allowing at most a limited travel about this axis.
- The term “sleeve” is understood to mean a tubular element. By opposition to a washer, a sleeve has its dimension along the axis of the tube greater than its thickness transverse to said axis. For example, the dimension of the wiping sleeve along its axis may be between 5 mm (millimeters) and 20 mm. For example, the thickness of the wiping sleeve transverse to its axis may be between 0.3 mm and 2 mm.
- The lip, formed at one end of the wiping sleeve, defines an orifice for the passing of the applicator though the wiper. The orifice being a chamfer, it is inclined with respect to a plane orthogonal to the direction of withdrawal, and/or with respect to a plane orthogonal to the axis of the wiper, or even the axis of the sleeve. For the sake of simplification, the term “chamfered lip” will subsequently be used.
- In the wiper described above, the flexibility of the wiping sleeve and the lip provided with a chamfer interact to improve the wiping of the applicator: owing to the chamfered shape of the lip, during the passing of the applicator through the wiping sleeve along the direction of withdrawal, the distal part of the lip, in response to the deformation of the whole wiping sleeve, is displaced to scrape the end of the applicator and remove any droplet of product that might otherwise remain on the applicator. Furthermore, owing to its flexibility, the wiping sleeve can deform or adapt as well as possible to the shape of the applicator to be wiped. According to one possible operation, on the passing of the applicator, the wiping sleeve may deform by curving back into itself, which makes it possible to follow the shape of the applicator as close as possible and to reject the excess product toward the inside of the container; this particular type of deformation is sometimes known as the “sock effect”.
- At the same time, owing to the fact that the attaching part has less flexibility than the wiping sleeve, the attachment of the wiper on the container can be effectively maintained upon the passing of the applicator through the wiper.
- In some embodiments, the wiping sleeve comprises a frustoconical part tapering in the direction of the lip, the lip being defined by the end of the frustoconical part. For example, the frustoconical part can be defined by a cone having an angle at the tip between 40° and 140°, or even 45° and 120°. The axis of the cone may be inclined with respect to the axis of the wiper, which makes it possible to precisely define the position and orientation of the orifice. The presence of a frustoconical part increases the capacity of the wiping sleeve to deform on itself to obtain the sock effect. Furthermore, the inclined wall of the wiping sleeve favors the draining of the excess product, wiped off by the wiper, toward the container.
- In some embodiments, the lip defines, in cross-section, a convex orifice. A convex orifice is such that for any two points belonging to the orifice, the straight-line segment linking these two points is entirely contained in the orifice. This facilitates the deformation of the lip and allows it to better scrape the applicator. For example the orifice can be of circular or elliptical shape.
- In some embodiments, the wiping sleeve comprises a wall adjacent to the lip, the thickness of the wall being less than 0.7 mm, preferably less than 0.5 mm. Optionally, the thickness of the wall may be greater than 0.1 mm, preferably 0.3 mm. Thus, the wall and the lip can deform easily.
- In some embodiments, said wall, independently of its thickness, has a hardness between 30 and 60 Shore A.
- In some embodiments, the lip is contained in a plane forming an angle between 10° and 80°, preferably between 20° and 70°, preferably between 30° and 60°, preferably approximately 45° with the direction of withdrawal.
- In some embodiments, the attaching part is made of a first material and the wiping sleeve is made of a second material having a lesser hardness and/or stiffness than that of the first material. This further facilitates the deformation of the wiping sleeve and prevents damage to the applicator. The hardness can be measured on the Shore or Vickers scale. The stiffness can be measured using the Young modulus.
- In some embodiments, the greatest length of the wiping sleeve (more particularly the length of the aforementioned frustoconical part, excluding an portion fastening the wiping sleeve to the attaching part) in the direction of withdrawal is greater than the widest inner radius of the wiping sleeve transverse to said direction. Owing to these features, by deforming, the wiping sleeve can reach all the way to the most central parts of the applicator, which increases the effectiveness of the wiping.
- In some embodiments, the orifice defined by the lip has a diameter between 2 and 8 mm, preferably between 3 and 7 mm, still preferably between 4 and 6 mm, preferably approximately 5 mm. This dimension is preferably measured in the plane of the orifice, the orifice being flat or essentially flat. When the orifice is not circular but of any shape, for example elliptical or oval, the diameter of the orifice denotes any dimension of the orifice, for example its greatest dimension and/or its smallest dimension, or any dimension of the orifice.
- This disclosure also relates to an assembly for applying a liquid or pasty product comprising a container having an opening, an applicator having a stem provided with an applying member and a wiper as defined previously, attached to the opening of the container. Preferably, the wiper is attached to the container such that the wiping sleeve is more inside the container than the attaching part. This makes it possible to better conserve the product inside the container.
- In some embodiments, the smallest inner diameter of the wiping sleeve transverse to the direction of withdrawal is less than a diameter of a cross-section of the stem. Thus, when the stem is in the orifice, the wiping sleeve has at least one part tightened onto the stem, able to scrape the product along the stem. The smallest inner diameter of the wiping sleeve transverse to the direction of withdrawal can be reached at the level of the lip or of a part of the wiping sleeve distant from the lip, according to the shape of the wiping sleeve.
- In some embodiments, the applying member is off-center with respect to an axis of the stem, or the orifice is off-center with respect to the direction of withdrawal. The axis of the stem generally corresponds to the direction of withdrawal. When the orifice of the wiper is centered with respect to the direction of withdrawal, the fact that the applying member is off-center makes it possible to make the applying member cooperate more closely with one side of the wiping sleeve and in particular the lip. This cases a greater deformation of the wiping sleeve upon the passing of the applicator and, consequently, increases the effectiveness of the wiper. This cooperation can also be obtained when the orifice of the wiper is off-center with respect to the direction of withdrawal, in which case the applying member may be along the axis of the stem.
- In some embodiments, the applying member has a concave part in its cross-section. Said concave part can serve as a reserve of product. Specifically, the lip of the wiper, deformed and taut about the applying member, does not enter into the concave part forming the reserve, which can therefore conserve surplus product. The surplus of product can be delivered to the applying member gradually as the applicator is used, which avoids recharging the applicator too often.
- In some embodiments, the applicator has at least one dimension greater than the stem transverse to the stem. The wiping of the applying member is therefore done even more closely than the wiping of the stem. Furthermore, the applying member is liable to cause a deformation by sock effect of the wiping sleeve even if the stem does not cause such a deformation. This results in better wiping.
- The invention and its advantages will be better understood on reading the following detailed description, of embodiments given by way of non-limiting example. This description refers to the appended drawings, wherein:
-
FIG. 1 is a perspective view of a wiper according to an embodiment. -
FIG. 2 is a bottom view of the wiper ofFIG. 1 . -
FIG. 3 is a section view along the plane III-III ofFIG. 2 . -
FIG. 4 is an exploded perspective view of the wiper ofFIG. 1 . -
FIG. 5 illustrates the wiper ofFIG. 3 mounted on a container and cooperating with an applicator according to an embodiment. -
FIG. 6 is a side view of the applicator ofFIG. 5 . -
FIG. 7 is a view of the applicator in perspective and in section along the plane VII-VII ofFIG. 6 . - A wiper according to an embodiment will be described with reference to
FIGS. 1 to 4 . Unless explicitly stated otherwise explicitly or in view of the context, in the assembly of this disclosure, thewiper 10 is described at rest, i.e. in the absence of any forces incurring deformations perceptible to the naked eye. -
FIG. 1 shows, in perspective, awiper 10 configured to wipe an applicator of a liquid or pasty product. As illustrated, thewiper 10 has a generally tubular, or even annular, shape about an axis X. The axis X of thewiper 10 defines an axial direction, which is also a direction of withdrawal of the applicator through thewiper 10. A radial direction is a direction perpendicular to this axis X and cutting this axis X. Similarly, an axial plane is a plane containing the axis X of the wiper and a radial plane is a plane perpendicular to this axis X. A circumference extends as a circle belonging to a radial plane and the center of which belongs to the axis X of the wiper. A tangential or circumferential direction is a direction tangent to a circumference; it is perpendicular to the axis X of the wiper but does not pass through the axis X. - Unless explicitly specified otherwise or departing from the scope, the adjectives “inner” and “outer” are used with reference to a radial direction such that the inner part of an element is, along a radial direction, closer to the axis X of the wiper than the outer part of the same element.
- As indicated previously, the
wiper 10 comprises an attachingpart 20 and a wipingsleeve 30. - In this embodiment, the attaching part comprises a
body 28. Thebody 28 is annular about the axis X, substantially cylindrical, here, with revolution symmetry. - In this embodiment, the attaching
part 20 comprises aflange 22, here radially protruding outwards, typically at the axial end of thebody 28 opposite the wipingsleeve 30. As illustrated inFIG. 5 , theflange 22 forms an axial stop for the engagement of the attachingpart 20 in theopening 56 of thecontainer 50. Theflange 22 can be annular. - The attaching
part 20 also comprises, in this embodiment, aseam 24 radially projecting outside thebody 28, in a portion of thebody 28 located between the wipingsleeve 30 and theflange 22. As illustrated inFIG. 5 , theseam 24 is intended to cooperate with theneck 54 of thecontainer 50, for example by tightening or latching, in order to hold the attachingpart 20 in theneck 54 of thecontainer 50. - Thus, it will be more generally understood that the attaching
part 20 is configured to attach thewiper 10 to theopening 56 of thecontainer 50. In this case, the attaching part cooperates with the edges of theopening 56, here theneck 54, to keep thewiper 10 housed inside theopening 56, here in theneck 54, at least over most of it or, as illustrated, all of it. By doing this, when theapplicator 60 is inserted or withdrawn through theopening 56, it also passes through thewiper 10. - The attaching
part 20 could take another form than that previously described, for example it may take the form of one or more attaching lugs. - The wiping
sleeve 30 is connected to the attachingpart 20, here at the axial end of the attachingpart 20 opposite theflange 22. - In this embodiment, the wiping
sleeve 30 comprises afastening portion 32. Thefastening portion 32 is annular about the axis X, substantially with revolution symmetry. - In this embodiment, the
fastening portion 32 is extended by a substantiallyfrustoconical wall 34, here about the axis X. Thewall 34 may be solid, in the sense that it does not comprise any radial opening. Thewall 34 may be tapered in the axial direction, from thefastening portion 32 all the way to the end opposite thewall 34 forming alip 38. Thelip 38 is therefore located at the end of the wipingsleeve 30 opposite the attachingpart 20. Thelip 38 is annular and extends continuously about the axis X. Thelip 38 thus defines anorifice 40 for the passing of the applicator. Thus, as previously indicated, the wipingsleeve 30 is tubular. In this case, the axis of the wipingsleeve 30 is colinear with the axis X of thewiper 10. - As previously indicated, the
orifice 40 is chamfered with respect to a direction of withdrawal of the applicator through thewiper 10. In this case, the direction of withdrawal being colinear with the axis X of thewiper 10, thelip 38 and theorifice 40 are inclined with respect to a plane orthogonal to the axis X of the wiper, as is clearly obvious fromFIG. 3 . Thelip 38 may be contained in a plane, as in this embodiment, or substantially contained in a plane, then called the median plane. Typically, the direction of withdrawal C and the plane of thelip 38 or, where applicable, its median plane, form between them an angle A different from 90°, preferably also different from 0°, for example between 10° and 80°, for example, as illustrated, approximately 45°. - The
lip 38 being chamfered, it has aproximal end 38 a, which is the part of thelip 38 the closest to the attachingpart 20, and adistal end 38 b, which is the part of thelip 38 the furthest from the attachingpart 20. - The
orifice 40 may be circular in the plane to which it belongs. For example, the orifice may be a disk of 5 mm in diameter. Due to its inclination, in a view transverse to the axis X, it then appears elliptical, as shown inFIG. 2 . Conversely, theorifice 40 could be elliptical in its plane such that its orthogonal projection along the axis X is circular or not; in this embodiment, one would then see a circle from a similar view to that ofFIG. 2 . More generally, provision can be made for theorifice 40 to be convex. It is recalled that a convex shape is such that when any two points belong to this shape, the straight line segment connecting these two points also belongs to this shape. - The
wall 34 can be dimensioned such that the greatest length L of the wipingsleeve 30, or even of thewall 34, in the direction of withdrawal X, is greater than the greatest inner radius R of the wipingsleeve 30 transversely to said direction X, as illustrated inFIG. 3 . Thus, thedistal end 38 b of thelip 38 can, by deforming inward, reach a relatively close part of the axis X, as will be described below. - It should moreover be noted that the
wall 34 is thinned with respect to thefastening portion 32, which confers on the wall 34 a relatively high degree of flexibility to perform the wiping, and to the fastening portion 32 a relatively high stiffness to make a successful connection with the attachingpart 20. For example, thewall 34 can be at least twice as thin, or even at least three times as thin, as thefastening portion 32. Moreover, thewall 34 here has a substantially constant thickness. - The
fastening portion 32 and thewall 34 meet at ajoin 33. In this embodiment, thejoin 33 effects a continuous transition between thefastening portion 32 and thewall 34. Thejoin 33 may define at least one of the following changes: change of shape of the wiping sleeve 30 (going from an overall cylindrical shape—of thefastening portion 32—to an overall frustoconical shape—of the wall 34); change of thickness of the wiping sleeve 30 (reduction by a factor of at least two of the thickness between thefastening portion 32 and the wall 34); change of flexibility of the wiping sleeve 30 (here essentially linked to the change of thickness). - As shown in
FIG. 4 , the attachingpart 20 is, in this embodiment, a separate part from the wipingsleeve 30. In this case, the attachingpart 20 is made of a first material and the wipingsleeve 30 is made of a second material having a lesser hardness and/or a stiffness than that of the first material. Thus, the wipingsleeve 30 is more flexible than the attachingpart 20. For example, the attachingpart 20 can be made of at least one of the following materials: low-density polyethylene, high-density polyethylene. Moreover, the wipingsleeve 30 can be made of an elastomer, typically a thermoplastic elastomer. The material of the wipingsleeve 30 can be chosen such that its hardness is between 30 and 60 Shore A. - The attaching
part 20 and the wipingsleeve 30 may be connected to one another by any known suitable means, for example by assembly. Furthermore, the wipingsleeve 30 can be found in the extension of the attachingpart 20. In this embodiment, the wipingsleeve 30 is first manufactured, then the attachingpart 20 is overmolded on the wipingsleeve 30. The overmolding, known per se, makes a chemical bond between the attachingpart 20 and the wipingsleeve 30. To further limit the risks of separation of the attachingpart 20 of the wipingsleeve 30, provision may be made, independently of the preceding, for one or more mechanical engagements between the attachingpart 20 and the wipingsleeve 30. As illustrated inFIGS. 3 and 4 , the axial engagement is allowed here, by additional annular radial ribs, while the circumferential engagement is allowed, here, by the cooperation ofdogs 36 of the wiping sleeve andapertures 26 corresponding to the attachingpart 20. Note that thedogs 36 and theapertures 26 have a radial component and a circumferential component. However, it would be possible to make provision solely for one or the other. In order not to impede the function of wiping of thewall 34, provision should be made for the systems for engaging the wipingsleeve 30, namely the rib and thedogs 36, to be provided rather on thefastening portion 32. - However, according to another embodiment, the attaching
part 20 and the wipingsleeve 30 could form two portions of one and the same part. The difference in flexibility between the attachingpart 20 and the wipingsleeve 30 can then be obtained by differences in thickness or any other method identified as suitable by those skilled in the art. -
FIG. 5 schematically illustrates, in section, an assembly for applying a liquid or pasty product comprising acontainer 50, anapplicator 60 and thewiper 10 described previously. Here the container is a bottle and comprises abody 52 and aneck 54 defining anopening 56. More generally, any container having an opening can be used. As previously indicated, thewiper 10 is attached to theopening 56 of thecontainer 50. More precisely, in this case, thewiper 10 is mounted inside theneck 54, theneck 54 then being housed at the stop in the shoulder formed between thebody 28 of the attachingpart 20 and theflange 22. - The
applicator 60 comprises astem 62 equipped with an applyingmember 64, here provided at one end of thestem 62. In this embodiment, the applyingmember 64 is, in side view, of the general shape of a drop of water, the tip of the drop being opposite thestem 62. However, other shapes can be selected by those skilled in the art. As can be seen inFIG. 6 , the applyingmember 64 is furthermore off-center with respect to an axis Y of the stem. The composition of the applyingmember 64 can be provided to absorb the liquid or pasty product contained in thecontainer 50; for example, the applyingmember 64 may comprise, at least in part, a porous material. Alternatively or additionally, the applyingmember 64 may be flocked. - The cooperation of the
applicator 60 and thewiper 10 during a movement of withdrawal of theapplicator 60 from thecontainer 50 will now be described with reference toFIGS. 5 and 7 . - In the initial position, the
applicator 60 is inserted into thecontainer 50, such that thewiper 10 cooperates with thestem 62. Particularly, provision can be made for the smallest inner diameter D of the wipingsleeve 30 transversely to the direction of withdrawal X to be less than a diameter of a cross-section of thestem 62. As illustrated inFIG. 2 , the smallest inner diameter D here corresponds to the smallest diameter of theorifice 40, in projection parallel to the direction of withdrawal X. In this way, not only is the wipingsleeve 30 able to scrape the product remaining on thestem 62, but, in addition, the deformation of the wipingsleeve 30 about thestem 62 has the effect of centering thestem 62 with respect to thewiper 10, so that the direction of withdrawal X is colinear with the axis Y of the stem. - Gradually as the
applicator 60 is withdrawn in the direction of withdrawal X, thelip 38 of thewiper 10 comes into contact with the applyingmember 64. In this embodiment, the applyingmember 64 has a transversal dimension greater than that of thestem 62, so of necessity greater than the smallest inner diameter D of the wiping sleeve. Thus thelip 38 can suitably scrape the applyingmember 64. - According to the relative orientation between the applying
member 64 and thelip 38, theproximal end 38 a of thelip 38 can turn about itself toward the inside of the wipingsleeve 30, and/or thedistal end 38 b of thelip 38 can turn about itself toward the inside of the wipingsleeve 30. The inner parts of thelip 38, between theproximal end 38 a and thedistal end 38 b, take up a position in which they are more or less turned about themselves, as a function of the positions of theproximal end 38 a and of thedistal end 38 b. Thus, different degrees of sock effect can be obtained. An example of deformation of thelip 38 and of the wipingsleeve 30 is schematically illustrated inFIG. 5 . - When the distal end 66, or tip, of the applying
member 64 arrives at theorifice 40, the cooperation between the wipingsleeve 30 and the applying member changes: thelip 38 being chamfered, it is theproximal end 38 a which is mainly in contact with the applyingmember 64. The deformation of thelip 38 at itsproximal end 38 a drags, by distribution of the efforts along thelip 38, thedistal end 38 b toward theproximal end 38 a. Thus, thedistal end 38 b, taut, approaches the axis X of thewiper 10, which makes it capable of scraping the drop of product that may form at the end of the applyingmember 64. Thus, the applyingmember 64 is correctly wiped. -
FIG. 7 shows that, as indicated previously, the applyingmember 64 may comprise, in cross-section, aconcave part 68, here fashioned by the very shape of the applyingmember 64. As illustrated inFIG. 7 , when the applyingmember 64 passes through theopening 40, thelip 38 deforms about the applicator. Thelip 38, a section of which is schematically depicted by dotted lines onFIG. 7 , is taut and therefore does not enter into theconcave part 68. Thus, a reserve of product can be conserved within the applyingmember 64 itself. - Although this description refers to specific exemplary embodiments, modifications can be made to these examples without departing from the general scope of the invention as defined by the claims. In particular, individual features of the different embodiments illustrated/mentioned may be combined in additional embodiments. Consequently, the description and drawings must be considered in an illustrative sense rather than a restrictive one.
Claims (14)
1. A wiper for an applicator of a liquid or pasty product, comprising an attaching part configured to attach the wiper to an opening of a container able to contain said product, and a tubular wiping sleeve connected to the attaching part, in which the wiping sleeve is more flexible than the attaching part, and an end of the wiping sleeve opposite the attaching part forms an annular lip, the lip defining an orifice chamfered with respect to a direction of withdrawal of the applicator through the wiper.
2. The wiper as claimed in claim 1 , wherein the wiping sleeve comprises a frustoconical part tapering towards the lip, the lip being defined by the an end of the frustoconical part.
3. The wiper as claimed in claim 1 , wherein the wiping sleeve comprises a wall adjacent to the lip, a thickness of the wall being less than 0.7 mm.
4. The wiper as claimed in claim 1 , wherein the wiping sleeve comprises a wall adjacent to the lip said wall having a hardness between 30 and 60 Shore A.
5. The wiper as claimed in claim 1 , wherein the lip defines, in cross-section, a convex orifice.
6. The wiper as claimed in claim 1 , wherein the lip is contained in a plane forming an angle between 10° and 80° with the direction of withdrawal.
7. The wiper as claimed in claim 1 , wherein the attaching part is made of a first material and the wiping sleeve is made of a second material having a lesser hardness than that of the first material.
8. The wiper as claimed in claim 2 , wherein the greatest length of the frustoconical part of the wiping sleeve in the direction of withdrawal is greater than the widest inner radius of the wiping sleeve transversely to said direction.
9. The wiper as claimed in claim 1 , wherein the orifice defined by the lip has a diameter between 2 and 8 millimeters.
10. An assembly for applying a liquid or pasty product comprising a container having an opening, an applicator having a stem provided with an applying member and a wiper as claimed in claim 1 , attached to the opening of the container.
11. The applying assembly as claimed in claim 10 , wherein the smallest inner diameter of the wiping sleeve transverse to the direction of withdrawal is less than a diameter of a cross-section of the stem.
12. The applying assembly as claimed in claim 10 , wherein the applying member is off-center with respect to an axis of the stem, or the orifice is off-center with respect to the direction of withdrawal.
13. The wiper as claimed in claim 3 , wherein the thickness of the wall is between 0.3 and 0.5 mm.
14. The applying assembly as claimed in claim 10 , wherein the applying member has a concave part in its cross-section.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FRFR1907052 | 2019-06-27 | ||
FR1907052A FR3097726B1 (en) | 2019-06-27 | 2019-06-27 | Wringer for an applicator of liquid or pasty product |
PCT/FR2020/051109 WO2020260830A1 (en) | 2019-06-27 | 2020-06-25 | Wiper for a liquid or pasty product applicator |
Publications (1)
Publication Number | Publication Date |
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US20220354236A1 true US20220354236A1 (en) | 2022-11-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US17/621,686 Pending US20220354236A1 (en) | 2019-06-27 | 2020-06-25 | Wiper for a liquid or pasty product applicator |
Country Status (8)
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US (1) | US20220354236A1 (en) |
EP (1) | EP3989771B1 (en) |
JP (1) | JP2022538424A (en) |
KR (1) | KR20220024898A (en) |
CN (1) | CN114040691A (en) |
ES (1) | ES2964311T3 (en) |
FR (1) | FR3097726B1 (en) |
WO (1) | WO2020260830A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US6149334A (en) * | 1996-11-25 | 2000-11-21 | The Gillette Company | Containers |
FR2826246A1 (en) * | 2001-06-26 | 2002-12-27 | Oreal | SIMPLIFIED MOUNTING SPINNER |
JP2003319823A (en) * | 2002-04-30 | 2003-11-11 | Yoshino Kogyosho Co Ltd | Container provided with applicator such as brush |
US8721210B2 (en) * | 2010-11-18 | 2014-05-13 | Hct Asia Ltd | Cosmetic multi-layered wiper |
ITMI20111735A1 (en) * | 2011-09-27 | 2013-03-28 | Brivaplast Srl | SCRAPER DEVICE FOR COSMETIC PRODUCTS |
JP6173890B2 (en) * | 2013-11-28 | 2017-08-02 | 株式会社吉野工業所 | Container with applicator |
FR3034296B1 (en) | 2015-04-01 | 2018-09-28 | Parfums Christian Dior | SPINNING DEVICE FOR A LIQUID OR PASTY PRODUCT APPLICATOR |
JPWO2017134791A1 (en) * | 2016-02-04 | 2018-11-29 | 株式会社新和製作所 | Cosmetic container wiper |
-
2019
- 2019-06-27 FR FR1907052A patent/FR3097726B1/en active Active
-
2020
- 2020-06-25 JP JP2021576810A patent/JP2022538424A/en active Pending
- 2020-06-25 US US17/621,686 patent/US20220354236A1/en active Pending
- 2020-06-25 ES ES20747039T patent/ES2964311T3/en active Active
- 2020-06-25 WO PCT/FR2020/051109 patent/WO2020260830A1/en active Application Filing
- 2020-06-25 KR KR1020227002380A patent/KR20220024898A/en active Search and Examination
- 2020-06-25 EP EP20747039.4A patent/EP3989771B1/en active Active
- 2020-06-25 CN CN202080046739.XA patent/CN114040691A/en active Pending
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EP3989771A1 (en) | 2022-05-04 |
JP2022538424A (en) | 2022-09-02 |
CN114040691A (en) | 2022-02-11 |
FR3097726B1 (en) | 2021-07-02 |
WO2020260830A1 (en) | 2020-12-30 |
EP3989771B1 (en) | 2023-09-13 |
ES2964311T3 (en) | 2024-04-05 |
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