Airtight applicator dispenser for a product in powder form

Abstract

An applicator dispenser ( 1 ) comprises a) a container ( 2 ) forming a reservoir ( 25 ) for powder product, the container ( 2 ) comprising a side wall ( 20 ), an upper wall ( 22 ) perforated like a sifter with at least one orifice ( 220 ) or a plurality of orifices ( 221 ) so as to allow the powder to pass through it so that it can be used, and typically a base ( 21 ), b) a lid or cover ( 3 ) comprising a head ( 30 ) and a lateral skirt ( 31 ) co-operating with the container ( 2 ), when the applicator dispenser ( 1 ) is closed, so as to seal the container ( 2 ), and c) an application means ( 4 ) of the powder housed between the head ( 30 ) and the wall ( 22 ), characterised in that: 1) the application means ( 4 ) is attached to the lid ( 3 ) to form an applicator ( 9 ), by means of an attachment means, so that the lid ( 3 ) acts as a manual way of gripping the application means ( 4 ), without the risk of getting product on the hands, 2) the container ( 2 ) comprises a closure means ( 8 ) that is typically airtight for the orifice ( 220 ) or the plurality of orifices ( 221 ). Advantages include an airtight dispenser and no risk of getting product on the hands.

1 . Applicator dispenser ( 1 ) of a product in powder form, typically of a cosmetic product forming a powder, disposing of an axial direction ( 10 ) and comprising a) a container ( 2 ) forming a reservoir ( 25 ) designed to contain the product in powder form, the container ( 2 ) comprising a side wall ( 20 ), an upper wall ( 22 ) perforated like a sifter with at least one orifice ( 220 ) or a plurality of orifices ( 221 ) so as to allow the powder to pass through it so that it can be used, and typically a base ( 21 ), b) a lid or cover ( 3 ) comprising a head ( 30 ) and a lateral skirt ( 31 ) co-operating with the container ( 2 ), when the applicator dispenser ( 1 ) is closed, so as to seal the container ( 2 ), and c) an application means ( 4 ) of the powder housed between the head ( 30 ) and the wall ( 22 ), characterised in that: 
 1) the application means ( 4 ) is attached to the lid ( 3 ) to form an applicator ( 9 ), by means of an attachment means, so that the lid ( 3 ) acts as a manual means of gripping the application means ( 4 ), without the risk of getting product on the hands    2) the container ( 2 ) comprises a closure means ( 8 ) that is typically air tight for the orifice ( 220 ) or the plurality of orifices ( 221 )    and in which the container ( 2 ) comprises a) an external body ( 4 ) comprising an external wall ( 41 ), b) an inner body ( 5 ) comprising an upper wall ( 50 ) equipped with at least one orifice ( 500 ) or a plurality of orifices ( 501 ) and a so-called internal wall ( 51 ), and c) an upper part ( 6 ) comprising a base ( 60 ) equipped with at least one orifice ( 600 ) or a plurality of orifices ( 601 ), the upper part ( 6 ) co-operating with the external body ( 4 ) or the inner body ( 5 ) so that it can turn in the axial direction ( 10 ) with respect to the external body ( 4 ) or to the inner body ( 5 ) in order to align/offset angularly the orifice ( 500 ) or the plurality of orifices ( 501 ) of the inner body ( 5 ) with respect to the orifice ( 600 ) or to the plurality of orifices ( 601 ) of the upper part ( 6 ).    
   
   
       2 . Applicator dispenser according to  claim 1  with a H/D shape factor at least equal to 1.5, for example at least equal to 2, and preferably at least equal to 3, in order to obtain a longitudinal applicator dispenser ( 1 ,  1 ′) with an axial direction ( 10 ), H designating the height of the applicator dispenser ( 1 ′) along the axial direction ( 10 ), and D designating its maximum transversal dimension or its diameter in the case of an applicator dispenser ( 1 ′) with a constant circular section on the entire said height H.  
   
   
       3 . Applicator dispenser according to  claim 1 , in which the external body ( 4 ) comprises the external wall ( 41 ) and a base ( 40 ), and in which the upper part ( 6 ) comprises the base ( 60 ) a side wall ( 61 ).  
   
   
       4 . Applicator dispenser according to  claim 3 , in which the internal wall ( 51 ) of the inner body ( 5 ) comprises a lower part ( 52 ) forming a lower skirt attaching, typically by axially clipping, the inner body ( 5 ) to the external body ( 4 ), so that in particular, a rotation of the external body ( 4 ) causes a corresponding rotation of the inner body ( 5 ).  
   
   
       5 . Applicator dispenser according to  claim 4 , in which the lower part ( 52 ) forms a long skirt co-operating by its lower end ( 520 ) with an internal crown ( 400 ) attached to the base ( 40 ), so that the lower end ( 520 ) enters into an annular cavity ( 42 ) formed between the internal crown ( 400 ) and the external wall ( 41 ) at its lower end ( 410 ).  
   
   
       6 . Applicator dispenser according to  claim 3  in which the internal wall ( 51 ) of the inner body ( 5 ) comprises a upper part ( 53 ) forming an upper skirt surrounding, at its base, the side wall ( 61 ) of the upper part ( 6 ).  
   
   
       7 . Applicator dispenser according to  claim 6  in which the upper part ( 53 ) comprises an external radial projection or radial shoulder ( 54 ), forming an axial stop for the external wall ( 41 ) and/or the side wall ( 31 ), and which has an external diameter typically equal to that of the external wall ( 41 ) at its upper end ( 410 ) and/or to that of the side wall ( 31 ) at its lower end ( 310 ).  
   
   
       8 . Applicator dispenser according to  claim 1 , in which the application means ( 32 ) is attached to the head ( 30 ) of the lid ( 3 ) to form the applicator ( 9 ), and, in which preferably, the application means ( 32 ) may have a section in a transversal plane selected so as to form an annular space ( 33 ) between the lateral skirt ( 31 ) of the lid ( 3 ) and the application means ( 32 ).  
   
   
       9 . Applicator dispenser according to  claim 1 , in which the application means ( 32 ) forms a longitudinal application block ( 320 ) of height H A  ranging from 10 mm to 60 mm, and preferably from 20 mm to 50 mm.  
   
   
       10 . Applicator dispenser according to  claim 1 , in which the lid ( 3 ) comprises an axial projection ( 34 ) attached, by its upper end, to the head ( 30 ) of the lid ( 3 ), or possibly an insert assembled onto the lid ( 3 ), the axial projection ( 34 ) forming the attachment means.  
   
   
       11 . Applicator dispenser according to  claim 10 , in which the axial projection ( 34 ) typically forms a portion of tube ( 35 ) forming a sheath gripping an upper part ( 321 ) of the application means ( 32 ), so as to attach the application means ( 32 ) to the lid ( 3 ).  
   
   
       12 . Applicator dispenser according to  claim 10  in which the axial projection has an axial length ranging from 0.8. H JC  to 1.1. H JC , where H JC  is the axial length of the lateral skirt ( 31 ) of the lid ( 3 ).  
   
   
       13 . Applicator dispenser according to  claim 1 , in which the application means ( 32 ) or the application block ( 320 ) comprises or is formed by an application material in a divided or fibrous or alveolar condition, for example alveolar foam or felt, capable of retaining a fraction of the powder so that it may subsequently be applied typically to the face.  
   
   
       14 . Applicator dispenser according to  claim 1  in which the application means ( 32 ) has a lower surface ( 323 ) typically in contact with the base ( 60 ) of the upper part ( 6 ) equipped with the orifice ( 600 ) or the plurality of orifices ( 601 ), so that a fraction S O /S of the lower surface ( 323 ) aligned with the orifice (s) is in contact with the powder, the fraction S O /S ranging typically from 0.05 to 0.4, where S O  corresponds to the zone of the orifice (s) and S corresponds to the total zone of the base ( 60 ).  
   
   
       15 . Applicator dispenser according to  claim 14  in which all or part of the application means ( 32 ) are resilient or axially elastic, so that they are in a state of slight axial compression between the head ( 30 ) and the base ( 60 ), when the applicator dispenser ( 1 ,  1 ′) is closed, the slight axial compression corresponding to a reduction in height of the application means typically ranging from 2% to 20%.  
   
   
       16 . Applicator dispenser according to  claim 10  in which the side wall ( 61 ) of the upper part ( 6 ) is coaxial to the axial projection ( 34 ), typically to the portion of tube ( 35 ), the side wall ( 61 ) comprising an upper portion ( 610 ) externally covering a lower portion ( 340 ) of the axial projection ( 34 ) on an axial distance ΔH ranging up to 0.8. H S , where H S  is the height of the side wall ( 61 ).  
   
   
       17 . Applicator dispenser according to  claim 1  in which the side wall ( 61 ) of the upper part ( 6 ), or the upper part ( 53 ) of the inner body ( 5 ), co-operates with the lateral skirt ( 31 ) of the lid ( 3 ) by screwing by means of a screw thread ( 11 ) when the container ( 2 ) is closed, the thread comprising at least one helicoidal groove ( 111 ), either total or partial, co-operating with at least one helicoidal rib ( 110 ), either total or partial.  
   
   
       18 . Applicator dispenser according to  claim 17  in which the lateral skirt ( 31 ) of the lid comprises on its inner surface a plurality of helicoidal grooves ( 111 ′) designed to co-operate when the dispenser ( 1 ,  1 ′) is closed, with a plurality of helicoidal ribs ( 110 ′) located on the side wall ( 61 ) or on the upper part ( 53 ), on its external surface, so that the lid ( 3 ) is capable of closing off the container ( 2 ) by screwing.  
   
   
       19 . Applicator dispenser according to  claim 18  in which the plurality of ribs comprises 3 ribs orientated at 120° with respect to one another and running at an angle α ranging from 40° to 120°, and preferably from 50° to 80°, so as to close/open the dispenser by a relative rotation of low amplitude.  
   
   
       20 . Applicator dispenser according to  claim 3  in which the inner body ( 5 ) is an inner body ( 5 ′) equipped with an internal wall ( 51 ′) that only comprises one lower wall ( 52 ), and in which the inner body ( 5 ′) is attached to the upper part ( 6 ) by a means of axial co-operation permitting a relative rotation of the upper part ( 6 ) with respect to the inner body ( 5 ) or with respect to the external body ( 4 ) attached in rotation to the inner body ( 5 ).  
   
   
       21 . Applicator dispenser according to  claim 20  in which the external body ( 4 ) is an external body ( 4 ′) equipped with an external wall ( 41 ′) comprising the internal wall ( 51 ′) and in which the base ( 40 ) of the external body ( 4 ) comprises a lower orifice ( 401 ) for filling it and a stopper ( 44 ) to close off the lower orifice ( 401 ).  
   
   
       22 . Applicator dispenser according to  claim 20  in which the external body ( 4 ) is an external body ( 4 ″) forming a tube that may be filled by the base and equipped with an external wall ( 41 ″) with a lower end ( 410 ″) capable of being fixed by forming a lower edge that is typically heat sealed.  
   
   
       23 . Applicator dispenser according to  claim 20  in which the means of co-operation axial ( 12 ) is selected from a central clipping means ( 120 ) or a peripheral clipping means ( 121 ).  
   
   
       24 . Applicator dispenser according to  claim 1  in which, the orifice ( 220 ) is formed by the alignment of the orifices ( 500 ) and ( 600 ) or by the alignment of the plurality of orifices ( 501 ) and ( 601 ) by relative rotation of the upper part ( 6 ) with respect to the inner body ( 5 ,  5 ′) or to the external body ( 4 ,  4 ′), the closure means ( 8 ) comprises a co-operation of convex elements ( 80 ) and concave elements ( 81 ), between the upper part ( 6 ) and the inner body ( 5 ,  5 ′) or the external body ( 4 ,  4 ′,  4 ″) or the peripheral clipping means ( 121 ), so as to have two extreme angular positions “F” and “O” obtained by the relative rotation along an angular path β, an extreme angular position marked “F” corresponding to a closure of the applicator dispenser, the other extreme angular position marked “O” corresponding to an opening of the applicator dispenser.  
   
   
       25 . Applicator dispenser according to  claim 24  in which the side wall ( 61 ) of the upper part ( 6 ) comprises an external radial projection ( 611 ) forming the convex element ( 80 ) typically co-operating with a internal radial groove ( 530 ) of the upper part ( 53 ) forming the concave element ( 81 ), so as to form the closure means ( 8 ).  
   
   
       26 . Applicator dispenser according to  claim 25  in which the internal radial groove ( 530 ) comprises a relief ( 531 ) providing the separation between the positions “O” and “F” so that the passage from a position “O” or “F” to the other position “F” or “O” requires a manual rotational effort.  
   
   
       27 . Applicator dispenser according to  claim 24  in which the base ( 60 ) of the upper part ( 6 ) comprises an axial projection ( 62 ) forming the convex element ( 80 ), co-operating with a cavity axial ( 450 ,  502 ) formed in the wall ( 45 ,  50 ) forming the concave element ( 81 ).  
   
   
       28 . Applicator dispenser according to  claim 18  in which the screwing of the lid on the container ( 2 ) automatically causes the relative rotation of the upper part ( 6 ) with respect to the inner body ( 5 ,  5 ′) or to the external body ( 4 ,  4 ′), so as to obtain the extreme angular position marked “F” corresponding to a closure of the applicator dispenser, due in particular to a driving effect of the longitudinal block ( 320 ) on the base ( 60 ).  
   
   
       29 . Applicator dispenser according to  claim 1  having a symmetry of revolution.  
   
   
       30 . Applicator dispenser according to  claim 1  in which the reservoir ( 25 ) has an internal capacity or volume typically ranging from 5 to 200 cm 3  and preferably from 10 cm 3  to 100 cm 3 .