Device for packaging two products separately

Abstract

Device ( 100, 200, 400 ) for packaging two products (A, B) separately and dispensing a resulting mixture (M) on a first use, said device comprising a plug ( 300 ) arranged between a lower container ( 110, 210 ) forming a first product cavity ( 115 ) and an upper container ( 120, 220 ) forming a second product cavity ( 125 ), the plug ( 300 ) having a base ( 310 ) fixedly secured to one of the lower container ( 110, 210 ) or upper container ( 120, 220 ) and presenting a communication passage ( 314 ) opening on both the first and second cavities, and a rotatable head ( 350 ) engaged with the other one of the upper container or lower container, the head being rotatable between a closed position where it covers the passage in the base thus preventing fluid communication between the first and second cavities and an open position where head is rotated away and at least partially uncovers the passage, thus allowing mixing of products contained the first and second cavities.

1 . A device for packaging two products separately and dispensing a resulting mixture on a first use, said device comprising:
 a lower container delimiting a first product cavity containing a first product and an upper container delimiting a second product cavity containing a second product, said containers being capable of rotating one relative to the other without moving axially,   wherein said device comprises a plug arranged between the first product cavity and the second product cavity,   the plug having a base fixedly secured to one of the lower container or upper container and presenting a communication passage opening on both the first and second cavities, and a rotatable head engaged with the other one of the upper container or lower container,   the head being rotatable between a closed position where it covers the passage in the base thus preventing fluid communication between the first and second cavities and an open position where head is rotated away and at least partially uncovers the passage, thus allowing mixing of products contained in the first and second cavities.   
     
     
         2 . The device according to  claim 1 , wherein the head is secured to the base, in its closed position before first use, by a frangible connection. 
     
     
         3 . The device according to  claim 1 , wherein the base is integrally made with the lower container. 
     
     
         4 . The device according to  claim 1 , wherein the base is mounted inside an open end of the container preferably an open neck of said container. 
     
     
         5 . The device according to  claim 4 , wherein the base is mounted on the lower container, said lower container being a vial, preferably integral. 
     
     
         6 . The device according to  claim 1 , wherein the lower container has an open end, located opposite the plug, that is closed by a cover after filing the second product. 
     
     
         7 . The device according to  claim 1 , wherein the upper container is a dispensing container such as a pipette closed by a removable cap or an ampule closed by a breakable top neck. 
     
     
         8 . The device according to  claim 1 , wherein the upper or lower container engaged with the head of the plug, comprises at least one inner lateral grooves configured to cooperate with corresponding laterally projecting tabs of said head of the plug. 
     
     
         9 . The device according to  claim 1 , wherein the head is without rotational symmetry, namely has on oval shape. 
     
     
         10 . A method of using a device according to  claim 1 , comprising:
 a step of rotating the upper container relatively to the lower container in order to force the rotation of the head of the plug relatively to said base of the plug and uncover the passage in the base allowing communication between the first and second cavities.