Packaging and dispensing device, in particular for a reservoir of limited capacity

Abstract

The invention concerns a dispensing head including a housing that includes a seating into which emerges at least one product inlet orifice. The dispensing head also includes a dispensing element that is configured to rotate substantially about a lengthwise axis of the seating, that is disposed at least partially in the seating, includes an admission orifice communicating with a dispensing orifice via a delivery channel, and is configured to assume a first position and a second position. The at least one product inlet orifice is surrounded by a sealing relief projecting into the seating. Additionally, the admission orifice communicates with the inlet orifice when the dispensing element is in the first position, and the admission orifice is isolated from the inlet orifice when the dispensing element is in the second position.

1 . A dispensing head, comprising: 
 a housing including a seating into which emerges at least one product inlet orifice;    a dispensing element that is configured to rotate substantially about a lengthwise axis of the seating, is disposed at least partially in the seating, includes an admission orifice communicating with a dispensing orifice via a delivery channel, and is configured to assume a first position and a second position,    wherein the at least one product inlet orifice is surrounded by a sealing relief projecting into the seating,    wherein the admission orifice communicates with the inlet orifice when the dispensing element is in the first position, and    wherein the admission orifice is isolated from the inlet orifice when the dispensing element is in the second position.    
   
   
       2 . The dispensing head according to  claim 1 , wherein the seating is of elongated shape substantially along the lengthwise axis.  
   
   
       3 . The dispensing head according to  claim 1 , wherein an axis of the dispensing orifice retains an invariant orientation when the dispensing element is rotated relative to the housing.  
   
   
       4 . The dispensing head according to  claim 1 , further comprising: 
 means for rotatably guiding the dispensing element; and    means for aligning at least one portion of the dispensing element adjacent to the at least one product inlet orifice, enabling the dispensing element to be held in bearing contact on the sealing relief around the entire product inlet orifice in the first position and the second position.    
   
   
       5 . The dispensing head according to  claim 1 , wherein the housing includes an extension projecting into the seating and engaged in the dispensing element.  
   
   
       6 . The dispensing head according to  claim 5 , wherein the extension includes a tubular skirt of an axis coincident with an axis of rotation of the dispensing element.  
   
   
       7 . The dispensing head according to  claim 6 , 
 wherein the dispensing element includes a recess at an end opposite the dispensing orifice, and    wherein the extension is engaged in this recess.    
   
   
       8 . The dispensing head according to  claim 7 , wherein the recess communicates with the delivery channel.  
   
   
       9 . The dispensing head according to  claim 1 , wherein at least one of the dispensing element and the housing includes at least one bearing relief tending to maintain the dispensing element in bearing contact on the sealing relief projecting into the seating.  
   
   
       10 . The dispensing head according to  claim 9 , wherein the at least one bearing relief is formed on the housing.  
   
   
       11 . The dispensing head according to  claim 10 , wherein the housing includes at least two bearing reliefs disposed on either side of a plane containing an axis of the product inlet orifice in the seating.  
   
   
       12 . The dispensing head according to  claim 11 , wherein the at least two bearing reliefs are each disposed symmetrically relative to said plane.  
   
   
       13 . The dispensing head according to  claim 12 , wherein the at least two bearing reliefs are each disposed at an 120° angle relative to each other about the lengthwise axis of the seating.  
   
   
       14 . The dispensing head according to  claim 11 , wherein the at least one bearing relief includes at least one flat surface.  
   
   
       15 . The dispensing head according to  claim 1 , wherein at least one of the seating and the dispensing element include an annular ring and the other a groove into which the annular ring snaps.  
   
   
       16 . The dispensing head according to  claim 1 , 
 wherein at least one of the seating and the dispensing element includes a rear groove and the other includes a rear ring configured to snap into the rear groove,    wherein the rear groove and the rear ring are disposed between a bottom of the seating and the product inlet orifice,    wherein at least one of the seating and the dispensing element includes a front groove and the other includes a front ring configured to snap into the front groove, and    wherein the front ring and the front groove are disposed axially between the opening of the seating and the product inlet orifice.    
   
   
       17 . The dispensing head according  claim 1 , wherein the dispensing element includes at least one operating member extending out of the seating.  
   
   
       18 . The dispensing head according to  claim 17 , wherein the operating member connects to a wall traversed by the dispensing orifice.  
   
   
       19 . The dispensing head according to  claim 17 , wherein the operating member is molded in one piece with a wall traversed by the dispensing orifice.  
   
   
       20 . The dispensing head according to  claim 17 , wherein the operating member includes a rearwardly-directed lug.  
   
   
       21 . The dispensing head according to  claim 1 , wherein the first and second positions are angularly spaced by more than 90°.  
   
   
       22 . The dispensing head according to  claim 1 , wherein the first and second positions are angularly spaced by about 120°.  
   
   
       23 . The dispensing head according to  claim 1 , wherein the housing incorporates indications associated with the first and second positions that are formed by molding.  
   
   
       24 . The dispensing head according to  claim 1 , further comprising means for mounting on a reservoir containing a product to be dispensed.  
   
   
       25 . The dispensing head according to  claim 24 , wherein the means for mounting include fixing tabs configured to snap onto a neck of the reservoir.  
   
   
       26 . The dispensing head according to  claim 1 , further comprising a sealing lip configured to engage in a neck of a reservoir.  
   
   
       27 . The dispensing head according to  claim 1 , wherein the dispensing orifice includes a diameter between 0.1 and 1 mm.  
   
   
       28 . The dispensing head according to  claim 27 , wherein the dispensing orifice includes a diameter of about 0.3 mm  
   
   
       29 . The dispensing head according to  claim 1 , further comprising a covering skirt including a free edge not fully contained in one plane.  
   
   
       30 . A dispensing head, comprising: 
 a housing including a seating into which emerges at least one product inlet orifice;    a dispensing element that is configured to rotate in the seating, and is disposed at least partially therein, that includes an admission orifice communicating with a dispensing orifice via a delivery channel, the dispensing element configured to assume a first position and a second position;    means for rotatably guiding the dispensing element; and    means for aligning at least one portion of the dispensing element adjacent to the product inlet orifice,    wherein the at least one product inlet orifice is surrounded by a sealing relief projecting into the seating,    wherein the admission orifice communicates with the product inlet orifice when the dispensing element is in the first position,    wherein the admission orifice is isolated from the product inlet orifice when the dispensing element is in the second position, and    wherein the alignment means are distinct from the rotation guiding means and the alignment means are arranged to hold the dispensing element in bearing contact on the sealing relief around the entire inlet orifice in the first position and the second position of the dispensing element.    
   
   
       31 . A packaging and dispensing device, comprising: 
 a reservoir containing a product to be dispensed; and    a dispensing head including 
 a housing including a seating into which emerges at least one product inlet orifice,  
 a dispensing element that is configured to rotate substantially about a lengthwise axis of the seating, is disposed at least partially in the seating, includes an admission orifice communicating with a dispensing orifice via a delivery channel, and is configured to assume a first position and a second position,  
   wherein the at least one product inlet orifice is surrounded by a sealing relief projecting into the seating,    wherein the admission orifice communicates with the inlet orifice when the dispensing element is in the first position, and    wherein the admission orifice is isolated from the inlet orifice when the dispensing element is in the second position.    
   
   
       32 . The device according to  claim 31 , further comprising a dip tube attached to the dispensing head.  
   
   
       33 . The device according to claims  31 , wherein the reservoir includes at least one deformable wall.  
   
   
       34 . The device according to  claim 33 , wherein the reservoir includes, on the side opposite the at least one deformable wall, a wall that is stiffer than the at least one deformable wall.  
   
   
       35 . The device according to  claim 31 , wherein the capacity of the reservoir is between 1 and 15 ml.  
   
   
       36 . A dispensing head, comprising: 
 a housing including a seating of elongated shape along an axis;    a product inlet orifice emerging from the seating; and    a dispensing element configured to be mobile in the seating between a first dispensing position and a second closed position,    wherein the dispensing element includes a product dispensing orifice and a delivery channel enabling the product delivered via the inlet orifice to reach the dispensing orifice when the dispensing element is in the first position,    wherein the delivery channel extends lengthwise in the first position on a radially outer surface of the dispensing element between the product inlet orifice and the product dispensing orifice.    
   
   
       37 . A dispensing head, comprising: 
 a housing including a seating of elongated shape along an axis;    a product inlet orifice emerging from the seating; and    a dispensing element configured to be mobile in the seating about the lengthwise axis of the dispensing element between a first dispensing position and a second closed position,    wherein the dispensing element includes an operating member including a lug at least partially covering a wall of the housing at least partially defining the seating.    
   
   
       38 . The dispensing head according to  claim 37 , wherein the housing includes at least one indication formed by molding to indicate to the user one of the dispensing and closed positions.