Control valve for a fluid product dispenser and a fluid product dispenser comprising such a valve

Abstract

The inventive control valve for fluid products is mounted on a reservoir containing said fluid products, comprises a valve body ( 10 ) and a metering chamber ( 20 ) and is provided with a first valve element ( 30 ) for dispensing products contained in the metering chamber ( 20 ) and a second valve element ( 40 ) for filling said metering chamber ( 20 ). The invention is characterised in that said first and second valve elements ( 30, 40 ) are actuated separately during the operation of the control valve.

1 . A valve for the dispensing of fluid products, intended to be fitted to a reservoir containing a fluid product, where said valve has a valve body ( 10 ) that includes a metering chamber ( 20 ), characterised in that the valve has a first valve element ( 30 ) intended to dispense the product contained in the metering chamber ( 20 ), and a second valve element ( 40 ) intended to fill said metering chamber ( 20 ), and characterised in that said first and second valve elements ( 30 ,  40 ) are actuated separately during the use of the valve.  
   
   
       2 . A valve according to  claim 1 , in which said first and second valve elements ( 30 ,  40 ) are actuated together to fill the reservoir with the fluid product.  
   
   
       3 . A valve according to  claim 1 , in which said second valve element ( 40 ) is positioned around said first valve element ( 30 ), said first valve element ( 30 ) sliding in a sealed manner in said second valve element ( 40 ).  
   
   
       4 . A valve according to  claim 1 , in which each valve element ( 30 ,  40 ) fits onto an elastic element ( 35 ,  45 ) respectively, such as a spring, which forces it toward its rest position.  
   
   
       5 . A valve according to  claim 1 , in which the actuating means of the first valve element ( 30 ) are different from the actuating means of the second valve element ( 40 ).  
   
   
       6 . A valve according to  claim 1 , in which said second valve element ( 40 ) forms, together with the valve body ( 10 ), an intake valve ( 50 ) for the metering chamber ( 20 ), said second valve element ( 40 ) being movable with respect to the valve body ( 10 ) between a closed position and an open position of said intake valve ( 50 ).  
   
   
       7 . A valve according to  claim 6 , in which said intake valve ( 50 ) is formed by a lateral passage ( 51 ) provided in a wall ( 41 ) of the second valve element ( 40 ), said passage ( 51 ) being closed in the closed position of the intake valve ( 50 ) and open in the open position of the intake valve ( 50 ).  
   
   
       8 . A valve according to  claim 1 , in which said first valve element ( 30 ) forms, together with said second valve element ( 40 ), an outlet valve for the metering chamber ( 20 ), said first valve element ( 30 ) being movable with respect to said second valve element ( 40 ) between a closed position and an open position of said outlet valve ( 60 ).  
   
   
       9 . A valve according to  claim 8 , in which said outlet valve ( 60 ) is formed by a lateral passage ( 61 ) provided in the said first valve element ( 30 ), said passage ( 61 ) being closed in the closed position of the discharge valve ( 60 ) and opening into the metering chamber ( 20 ) in the open position of the discharge valve ( 60 ).  
   
   
       10 . A valve according to  claim 1 , in which the valve body ( 10 ) is made in two parts ( 11 ,  12 ) fixed together, in particular by a snap-fit.  
   
   
       11 . A valve according to  claim 1 , in which, in the rest position of the valve, the metering chamber ( 20 ) is closed hermetically with respect to the reservoir and the exterior.  
   
   
       12 . A device for the dispensing of fluid products, including a reservoir containing a fluid product and a propellant, characterised in that the said device includes a valve according to  claim 1 .  
   
   
       13 . A device according to  claim 12 , in which said reservoir is filled by means of a filling machine which simultaneously actuates the first and second valve elements ( 30 ,  40 ).