Device, provided with a puncher and a dripper, for the hermetic sealing of containers
BACKGROUND OF THE INVENTION 
     The present invention relates to a closure for necked containers, equipped with a puncher and a dripper, hermetically sealing containers. Devices of the said type which are known and dispensers are likewise known which are capable of containing, separately, two diverse substances; of allowing, in a simple and fast manner, the mixing of substances and of dosing or dispensing mixture. 
     SUMMARY OF THE INVENTION 
     In accordance with the invention there is provided a closure device and a dispenser comprising, in combination, a container of glass or other material, apt to contain a substance, e.g. a liquid to be utilized as solvent; a receptacle - shaped or cup-shaped plug of plastic or other technologically suitable material, into which another substance is introduced, e.g. a powder, and which hermetically seals the container; means capable of boring or punching the bottom of the cup-shaped receptacle with subsequent introduction of the substance therein contained to the interior of the container filled with the other substance, and means capable of dosing or dispensing the solution resulting from the mixing of the various substances in such percentages as required by the consumer; and, last, a sealing cap or cover acting as actuating pushbutton. 
     Still according to the invention, these means of boring are formed by a hollow cylindrical sleeve or tubular punching piston made of plastic or other technologically suitable material, which airtightly slides on the internal cylindrical wall of the cup-shaped or plug receptacle. The cylindrical sleeve or tubular punching piston ends with a cutting edge at a short distance from the bottom of the receptacle and is provided, at the opposite end, with a disk connected with an internal dripper or dispensing tube or; this dripper of lesser diameter tube and disk too, are made of plastic or other technologically suitable material and into which dosing holes and the open-ended tube are bored; said holes are closed by a sealing cap made of plastic or other material and which receives airtightly, in a circular groove in the internal wall thereof the disk located at the top end of the sleeve which is equipped with a corresponding ring edge, located on the external wall. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The present invention, so that it may be correctly understood and, accordingly, readily placed in practice, will now be described with reference to the accompanying drawings which illustrate one preferred embodiment of said invention by way of illustration and not of limitation. 
     FIG. 1 is a sectional view showing the individual parts of the device according to the invention; 
     FIG. 2 is a sectional view showing the device in FIG. 1 inserted in a container prior to the mixing; 
     FIG. 3 is a view similar to FIG. 2, which shows the device during mixing action; 
     FIG. 4 is a view similar to FIG. 3, illustrating the device as it appears at the time of the use of the dripper. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     In each figure, identical or corresponding parts of the device forming the object of the invention are indicated with the same reference numbers. 
     Referring to the drawings 1 is a container of glass or other material, in which a substance is contained, for instance a solvent liquid 2. 
     The container 1 is hermetically sealed with a dispenser closure having a receptacle-shaped or cup-shaped plug 3 of plastic or other technologically suitable material, in which another substance 4 has been placed, e.g. a powder, and whose bottom is constituted by a thin diaphragm, 5. 
     A hollow cylindrical sleeve or tubular punching piston 6 is installed within the receptacle - shaped plug 3. This sleeve is made of plastic or other technologically suitable material, and it is cut according to &#34;a flute nib&#34; that is according to an oblique plane, so as to form an inner cutting edge 7 located next to the diaphragm 5. The sleeve or tubular punching piston 6 can airtightly slide along the internal cylindrical wall 8 of the plug 3 and it has, at its top end, a disk 9 connected with an internal dripper portion and dispensing tube 10. 
     The dripper too is made of plastic or other technologically suitable material and into which dosing holes 11 are bored. Said holes are protected by a sealing cap 12 made of plastic or other material, which receives, airtightly, in a circular groove 13 of the internal wall 14, the disk 9 located at the top end of said sleeve 6 and which is provided with a corresponding ring edge 15 located on the external wall 16. 
     The use of the device above described is very simple: the user presses downward, with his finger, the sealing cap or cover 12 which, at the same time, operates as an actuating pushbutton; said pressure frees the sealing cap 12 from the sleeve 6 as soon as said sleeve 6 penetrates into the receptacle - shaped plug 3, which is provided with a circular groove 17 on the internal wall 18 corresponding to the ring edge 15 of the sleeve 6. Said penetration causes the boring or punching of the diaphragm 5 which forms the bottom of the plug 3 and the descent of the substance 4, placed in the plug 3, into the inside of the container 1 in which the substance 2 is contained. 
     Successively, the user mixes the two diverse substances shaking slightly the container equipped with the boring plug with the dripper. Then, the user gets the dose of the solution he requires holding the container inverted.  The present invention has been described with reference to a preferred embodiment, but it is understood that variants in execution may be made in practice without going beyond the scope of the present patent disclosure.