System for automatic opening containers provided with sealing elements

Abstract

The present invention refers to a system for automatic opening device for a container provided with a spout having a rim with a sealing element firmly attached thereto, said system comprising an automatic opening device for a container and a threaded spout that provide means that obviate the need to unscrew the cap of the container and next remove the sealing element from the rim of the spout in order to enable pouring of the product stored in the container.

1 . A system for automatic opening a container ( 20 ) including an automatic opening device ( 1 ) and a spout ( 12 ) affixed to the container ( 20 ), wherein:
 the spout ( 12 ) comprises an elongated body ( 13 ) whose external region is provided with an external lower ring ( 17 ) and an external intermediate ring ( 18 ) located above said external lower ring ( 17 ), the diameter of the external lower ring ( 17 ) being larger than the diameter of the external intermediate ring ( 18 );   an external screw thread ( 14 ) of at least one start is provided in the elongated body ( 13 ) of the spout ( 12 ) above the external intermediate ring ( 18 ), said external screw thread ( 14 ) comprising a lower flank ( 14   a ) and an upper flank ( 14   b ), a root ( 15 ) being formed between these two flanks ( 14   a - 14   b ), the upper flank ( 14   b ) of the external screw thread ( 14 ) having an upper end ( 21 );   a sealing element ( 19 ) is affixed to the rim of the spout ( 12 );   said automatic opening device ( 1 ) comprises at least a base element ( 1   b ) a cutting device ( 3 ) and a locking device ( 6 , 6 ′);   the base element ( 1   b ) comprises an elongate body that forms a first sidewall ( 11 ) whose edges are joined to a top element ( 10 ) provided with a throughout orifice ( 2   a );   the internal portion of the first sidewall ( 11 ) is provided with an internal screw thread ( 5 ) of at least one start which matches said external screw thread ( 14 ) of the spout ( 12 );   the locking device ( 6 , 6 ′) comprises an elongated body provided at its upper edge with a plurality of upper rupture elements ( 6   a,   6   a ′) which are connected to a lower edge of the elongated body of the base element ( 1   b ), the lowermost region of the locking device ( 6 , 6 ′) being provided with a locking means ( 6   b ) for locking the automatic opening device ( 1 ) to the spout ( 12 ) by inserting the locking means between the external lower ring ( 17 ) and the external intermediate ring ( 18 );   the cutting device ( 3 ) comprises a protruding hollow body whose upper portion is connected to the lower region of said top element ( 10 ), encircling said throughout orifice ( 2   a ), the lower portion of the cutting device ( 3 ) being provided with at least one cutting element ( 3   a );   the external region of the spout ( 12 ) is additionally provided with an external upper ring ( 16 ) located above the external intermediate ring ( 18 ), said screw thread ( 14 ) being located between the external intermediate ring ( 18 ) and the external upper ring ( 16 ), the diameter of the external upper ring ( 16 ) being smaller than the diameter of the intermediate external ring ( 18 );   said internal screw thread ( 5 ) of the elongate body of the base element ( 1   b ) and said external screw thread ( 14 ) of the spout ( 12 ) are selected from the group comprising right hand screw thread and left hand screw thread;   the upper end ( 21 ) of the upper flank ( 14   b ) of said external screw thread ( 14 ) extends beyond the external upper ring ( 16 ) of the spout ( 12 ) and the lower flank ( 14   a ) has its upper end even with the lower portion of the external upper ring ( 16 ); and   wherein rotation of the base element ( 1   b ) will cause the upper rupture elements ( 6   a ) of the locking device ( 6 ) to rupture and the base element ( 1   b ) to rotate such that the entry tips ( 5   a ) of the internal screw thread flanks ( 5 ) will run along the upper face of the upper ring ( 16 ) until they meet the upper end ( 21 ) of the upper flank ( 14   b ) of the screw thread ( 14 ).   
     
     
         2 . A system for automatic opening a container ( 20 ) according to any claims  1 - 2 , wherein the flanks of the internal screw thread ( 5 ) are partially threaded into the external screw thread ( 14 ) in factory. 
     
     
         3 . A system for automatic opening a container ( 20 ) according to  claim 1 , wherein:
 the rotation of the automatic opening device ( 1 ) in a wrong sense to open the container is indicated by the use of an arrangement selected from the group formed by a limiter of rotation ( 23 ) and a noise device for alerting wrong sense of rotation, in that:
 the limiter of rotation ( 23 ) is formed by a cooperation between a guiding element ( 22 ), the upper end ( 21 ) of the upper flank ( 14   b ) of the external screw thread ( 14 ) and the flank of the internal screw thread ( 5 ); 
 the guiding element ( 22 ) is formed at an external portion of the elongated body of the spout and extends parallel to the upper edge of the spout;
 the upper end ( 21 ) of the upper flank ( 14   b ) of the external screw thread ( 14 ) extends up to the guiding element ( 22 ), thereby forming said limiter of rotation ( 23 ) between upper end ( 21 ) of the upper flank ( 14   b ) of the external screw thread ( 14 ) and the guiding element ( 22 ), the flank of the internal screw thread ( 5 ) of the automatic opening device ( 1 ) is bipartite, comprising an upper section ( 5   s ) and a lower section ( 5   i ), thereby forming a gap between them; 
 wherein, when the opening device ( 1 ) is rotated in a wrong sense, the guiding element ( 22 ) is able to pass through the gap between the upper section ( 5   s ) and the lower section ( 5   i ) of the flank of the internal screw thread ( 5 ) and the lower section ( 5   i ) of the internal screw thread ( 5 ) will move over the upper face of the upper ring ( 16 ) until they engage the limiter of rotation ( 23 ); 
 
 the noise device for alerting wrong sense of rotation is formed by a cooperation between the upper end ( 21 ) of the upper flank ( 14   b ) of the external screw thread ( 14 ) and the upper ends of the locking elements means ( 6   b ) of the locking device ( 6 ), in that:
 the upper ends of the locking elements ( 6   b ) of the locking device ( 6 ) maintain a gap 
 
 with respect to the lower face of the intermediate ring ( 18 ), whereby, when the automatic opening device ( 1 ) is rotated in a wrong sense, the entry tip ( 5   a ) of the internal screw thread flank ( 5 ) will move past the upper ends ( 21 ) of the upper flanks ( 14   b ) and will return to displace on the upper face of the upper ring ( 16 ), thereby emitting a noise. 
   
     
     
         4 . A system for automatic opening a container ( 20 ) according to any of  claims 1-3 , wherein:
 the automatic opening device ( 1 ) is provided with a closure to close the base element ( 1   b ), said closure selected from the group comprising a closing element ( 1   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 1   a ) comprises an elongated cylindrical body forming a sidewall ( 9 ,) and an upper element ( 8 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 9 ), the closing element ( 1 ) being connected to the base element ( 1   b ) by means of a connection selected from the group comprising a connecting pivoting element ( 7 ), a flexible connecting element, a screw thread connection and a pressure connection; 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 2   a,   39 , 74   a ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 2   a ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 8 ). 
   
     
     
         5 . A system for automatic opening a container ( 51 ) including an automatic opening device ( 41 ) and a spout ( 26 , 47 ) affixed to the container ( 51 ), wherein:
 the spout ( 26 , 47 ) comprises an elongated body ( 48 ) whose external region is provided with a first upper ring ( 49 ) and a second lower ring ( 50 ) larger in diameter than the first upper ring ( 49 ), the second lower ring ( 50 ) located below the first upper ring ( 49 ), the external region of the elongated body ( 48 ) selected from the group comprising a smooth external region and a lower region provided with an external screw thread ( 30 );   a sealing element ( 19 ) is affixed to the rim of the spout ( 26 , 47 );   said automatic opening device ( 41 ) comprises at least a base element ( 41   b ) a cutting device ( 43 ) and a guiding and locking device ( 46 );   the base element ( 41   b ) comprises an elongate body that forms a first sidewall ( 54 ) whose upper edge is joined to a top member ( 55 ) provided with a throughout orifice ( 39   a );   the external portion of the first sidewall ( 54 ) of the base element ( 41   b ) is provided with an external screw thread ( 45 , 145 ) of at least one start and selected from the group comprising right hand screw thread and left hand screw thread;   the guiding and locking device ( 46 ) comprises an elongated body provided at its upper edge with a plurality of upper rupture elements ( 46   a ) which are connected to a lower edge of the elongated body of the base element ( 41   b ), the lowermost region of the guiding and locking device ( 46 ) being provided with a locking means ( 46   b ) for locking the automatic opening device ( 41 ) to the spout ( 26 , 47 ) by inserting the locking means between the first upper ring ( 49 ) and the second lower ring ( 50 );   the cutting device ( 43 ) comprises a protruding hollow body whose upper portion is connected to the lower region of the base element ( 41   b ), encircling said throughout orifice ( 39   a ), the lower portion of the cutting device ( 3 ) being provided with at least one cutting element ( 3   a );   the upper inner portion of the guiding and locking device ( 46 ) is provided with an internal screw thread ( 44 , 144 ) of at least one start and selected from the group comprising right hand screw thread and left hand screw thread, said internal screw thread ( 44 ) being able to engage into said external screw thread ( 45 , 145 ) of the base element ( 41   b );   the internal screw thread ( 44 ) comprises lower flanks ( 44   a ) and upper flanks ( 44   b ), the latter having upper ends ( 44   d ) which extend above the upper ends of the lower flanks ( 44   a ) and above the upper edge of the guiding and locking device ( 46 ) to facilitate the screwing of the external screw thread ( 45 ) of the first sidewall ( 54 ) into the internal screw thread ( 44 ).   
     
     
         6 . A system for automatic opening a container ( 51 ) according  claim 5  wherein:
 the automatic opening device ( 41 ) is provided with a closure to close the base element ( 41   b ), said closure selected from the group comprising a closing element ( 41   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 41   a ) comprises an elongated cylindrical body forming a sidewall ( 56 ) and an upper element ( 57 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 56 ), the closing element ( 41   a ) being connected to the base element ( 41   b ) by means of a connection selected from the group comprising a connecting pivoting element ( 7 ), a flexible connecting element, a screw thread connection and a pressure connection; 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 39 ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 39 ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 57 ). 
 
 
     
     
         7 . A system for automatic opening a container ( 51 ) according to  claim 5 , wherein the external region of the spout ( 47 ) is smooth, and:
 said locking means for locking the base element ( 41   b ) of the automatic opening device ( 41 ) to the spout ( 47 ) comprise a plurality of lower locking elements ( 46   b ) in the form of spaced apart lugs distributed circularly, the lower portion of each lug being joined to the lower region of the lower portion of the guiding and locking device ( 46 ), the body of each lug being inclined towards the geometric axis of the locking device ( 46 );   guiding fins ( 46   c ) are provided at the lower inner portion of the guiding and locking device ( 46 ) to facilitate the insertion and correct positioning of the guiding and locking device ( 46 ) in the spout ( 47 );   reinforcement lugs ( 46   d ) are provided at the upper edge of the guiding and locking device ( 46 ) in the regions where the upper ends ( 44   d ) of the upper flanks ( 44   b ) are extended above the upper edge of the guiding and locking device ( 46 ).   
     
     
         8 . A system for automatic opening a container ( 51 ) according  claim 7  wherein:
 the automatic opening device ( 41 ) is provided with a closure to close the base element ( 41   b ), said closure selected from the group comprising a closing element ( 41   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 41   a ) comprises an elongated cylindrical body forming a sidewall ( 56 ) and an upper element ( 57 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 56 ), the closing element ( 41   a ) being connected to the base element ( 41   b ) by means of a connection selected from the group comprising a connecting pivoting element ( 7 ), a flexible connecting element, a screw thread connection and a pressure connection; 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 39 ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 39 ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 57 ). 
 
 
     
     
         9 . A system for automatic opening a container ( 51 ) according to  claim 5 , in that the external region of the spout is provided with an external screw thread ( 30 ), wherein:
 said locking means for locking the base element ( 41   b ) of the automatic opening device ( 41 ) to the spout ( 47 ) comprise a plurality of lower locking elements ( 46   b ) in the form of spaced apart lugs distributed circularly, the lower portion of each lug being joined to the lower region of the lower portion of the guiding and locking device ( 46 ), the body of each lug being inclined towards the geometric axis of the locking device ( 46 );   an internal screw thread ( 52 ) is provided at the lower region of the guiding and locking device ( 46 ), located above said plurality of lower locking elements ( 46   b ), said internal screw thread ( 52 ) being able to connect the external screw thread ( 30 ) of the spout ( 47 );   reinforcement lugs ( 46   d ) are provided at the upper edge of the guiding and locking device ( 46 ) in the regions where the upper ends ( 44   d ) of the upper flanks ( 44   b ) are extended above the upper edge of the guiding and locking device ( 46 ).   
     
     
         10 . A system for automatic opening a container ( 51 ) according  claim 9  wherein:
 the automatic opening device ( 41 ) is provided with a closure to close the base element ( 41   b ), said closure selected from the group comprising a closing element ( 41   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 41   a ) comprises an elongated cylindrical body forming a sidewall ( 56 ) and an upper element ( 57 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 56 ), the closing element ( 41   a ) being connected to the base element ( 41   b ) by means of a connection selected from the group comprising a connecting pivoting element ( 7 ), a flexible connecting element, a screw thread connection and a pressure connection; 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 39 ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 39 ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 57 ). 
 
     
     
         11 . A system for automatic opening a container ( 70 ) including an automatic opening device ( 61 ) and a spout ( 65 ) affixed to the container ( 70 ), wherein:
 the spout ( 65 ) comprises an elongated body ( 66 ) whose external region is provided with a first upper ring ( 68 ) and a second lower ring ( 69 ), larger in diameter than the first upper ring ( 68 ), and located below the first upper ring ( 68 ), the external region of the elongated body ( 66 ) being provided with an external screw thread ( 67 ) located above the first upper ring ( 68 );   a sealing element ( 77 ) is affixed to the rim of the spout ( 65 );   said automatic opening device ( 61 ) comprises at least a base element ( 61   b ), a cutting device ( 63 ) and locking device ( 62 );   the base element ( 61   b ) comprises an elongate body that forms a first sidewall ( 72 ) whose upper edge is joined to a top element ( 73 ) provided with a throughout orifice ( 74   a );   the internal portion of the first sidewall ( 72 ) of the base element ( 61   b ) is provided with an internal screw thread ( 64 ) of at least one start;   the locking device ( 62 ) comprises an elongated cylindrical body provided at its upper edge with a plurality of upper rupture elements ( 62   a ) which are connected to the lower edge of the base element ( 61   b ), the lowermost region of the locking device ( 62 ) being provided with a locking means ( 62   b ) for locking the automatic opening device ( 61 ) to the spout ( 65 ) by inserting the locking means between the first upper ring ( 68 ) and the second lower ring ( 69 );   the cutting device ( 63 ) comprises a protruding hollow body whose upper portion is connected to the lower region of the top element ( 73 ), encircling said throughout orifice ( 74   a ), the lower portion of the cutting device ( 63 ) being provided with at least one cutting element ( 63   a );   the spout ( 65 ) has a linear extension (L 1 ) between its rim and the edge of the first upper ring ( 68 ), and a linear extension (C 1 ) between the edge of the first upper ring ( 68 ) and the upper portion of the second lower ring ( 69 ) where the lower edge of the locking device ( 62 ) will touch at the end of the assembly of the automatic opening device for containers ( 61 ) on the container ( 70 );   the base element ( 61   b ) of the automatic opening device for containers ( 61 ) has a linear extension (L 2 ) between the lower part of the annular ring region ( 73   a ) and the lower edge of the base element ( 62 ), and the locking device ( 62 ) has a linear extension (C 2 ) between said lower edge of the base element ( 61   b ) and an imaginary plane formed by the upper region of the lower locking means ( 62   b );   said linear extensions (L 1 ) and (L 2 ) are substantially identical, and the linear extensions (C 1 ) and (C 2 ) are also substantially identical;   the internal screw thread ( 64 ) of at least one start is selected from the group comprising right hand screw thread and left hand screw thread.   
     
     
         12 . A system for automatic opening a container ( 70 ) according to  claim 11 , wherein:
 the automatic opening device ( 61 ) is provided with a closure to close the base element ( 61   b ), said closure selected from the group comprising a closing element ( 61   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 61   a ) comprises an elongated cylindrical body forming a sidewall ( 71 ) and an upper element ( 75 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 71 ), the closing element ( 61   a ) being connected to the base element ( 61   b ) by means of a connection selected from the group comprising a connecting pivoting element ( 7 ), a flexible connecting element, a screw thread connection and a pressure connection; 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 74   a ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 74   a ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 8 , 57 , 75 ). 
   
     
     
         13 . A system for automatic opening a container ( 70 ) according to  claim 11 , wherein said locking means for locking the base element ( 61   b ) of the automatic opening device ( 61 ) to the spout ( 65 ) comprises a plurality of lower locking elements ( 62   b ) in the form of spaced apart lugs distributed circularly and being able to pivot towards the geometric axis of the locking device ( 46 ), the lower portion of each lug being joined to the lower region of the lower portion of the locking device ( 62 ), and the body of each lug being inclined towards the geometric axis of the locking device ( 62 ) when the automatic opening device ( 61 ) is assembled on the spout ( 65 ) and the lugs are locked between the second lower ring ( 69 ) and the first upper ring ( 68 ). 
     
     
         14 . A system for automatic opening a container ( 70 ) according to  claim 13 , wherein:
 the automatic opening device ( 61 ) is provided with a closure to close the base element ( 61   b ), said closure selected from the group comprising a closing element ( 61   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 61   a ) comprises an elongated cylindrical body forming a sidewall ( 71 ) and an upper element ( 75 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 71 ), the closing element ( 61   a ) being connected to the base element ( 61   b ) by means of a connection selected from the group comprising a connecting pivoting element ( 7 ), a flexible connecting element, a screw thread connection and a pressure connection; 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 74   a ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 74   a ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 8 , 57 , 75 ). 
   
     
     
         15 . A system for automatic opening a container ( 101 ) including an automatic opening device ( 90 ) and a spout ( 103 ) affixed to the container ( 101 ), wherein:
 the spout ( 103 ) comprises an elongated body whose external region is provided with an external lower ring ( 105 ) and an external upper ring ( 104 ) located above said external lower ring ( 105 ), the diameter of the external lower ring ( 105 ) being larger than the diameter of the external upper ring ( 104 );   an external screw thread ( 94 ) of at least one start is provided to the external region of the spout ( 103 ), located between said external lower ring ( 105 ) and said external upper ring ( 104 ), one of the flanks of the external screw thread ( 94 ) extending above said external upper ring ( 104 );   a sealing element ( 109 ) is affixed to the rim of the spout ( 103 );   said automatic opening device ( 90 ) comprises at least a base element ( 90   b ), a puncture device ( 93 ) and a locking device ( 96 );   the base element ( 90   b ) comprises a sidewall ( 97 ) whose edges are joined to a top element ( 100 ) provided with a throughout orifice ( 92   a );   the internal portion of the sidewall ( 95 ) is provided with an internal screw thread ( 95 ) of at least one start which matches said external screw thread ( 94 ) of the spout ( 103 );   the locking device ( 96 ) comprises an elongated body provided at its upper edge with a plurality of upper rupture elements ( 96   a ) which are connected to a lower edge of the elongated body of the base element ( 90   b ), the lowermost region of the locking device ( 6 , 6 ′) being provided with a locking means for locking the automatic opening device ( 90 ) to the spout ( 103 ) by moving the locking means past the external lower ring ( 105 );   the puncture device ( 93 ) comprises a hollow protruding body in the shape of an inverted cone whose upper portion is connected to the lower portion of the top element ( 100 ), in the region where the throughout orifice ( 92   a ) is located, the latter being a continuation of the hollow portion of the puncture device ( 93 ), the latter being also provided with lateral passages ( 93   b );   said internal screw thread ( 95 ) of the base element ( 90   b ) and said external screw thread ( 94 ) of the spout ( 103 ) are selected from the group comprising right-hand oriented screw thread and left-hand oriented screw thread;   wherein rotation of the automatic opening device ( 90 ) will cause the puncture element ( 92   a ) of the puncture device ( 93 ) to puncture the sealing element ( 109 ) and next to cause the puncture device ( 93 ) to enlarge the area that has been punctured in the sealing element ( 109 ) by the puncture element ( 92   a ), thereby enabling the product contained into the container ( 101 ) to pass through the lateral passages ( 93   b ) of the puncture device ( 93 ) and next pass through the throughout orifice ( 92   a ) of the base element ( 90   b ).   
     
     
         16 . A system for automatic opening a container ( 101 ) according to  claim 15 , wherein:
 said locking means for locking the automatic opening device ( 90 ) to the spout ( 103 ) comprise a plurality of lower locking elements ( 96   b ) provided at the lower internal portion of the locking device ( 96 ).   the automatic opening device ( 90 ) is provided with a closure to close the base element ( 90   b ), said closure selected from the group comprising a closing element ( 90   a ), a suction spout ( 24 ), a pouring device ( 53 ) and a protruding element ( 58 , 84 ), in that:
 the closing element ( 90   a ) comprises an elongated cylindrical body forming a sidewall ( 97 ) and a top element ( 100 ), circular in shape whose edges are joined to the upper edge of the sidewall ( 97 ); 
 the suction spout ( 24 ) comprises a long body extending above the base element and connected to said throughout orifice ( 92   a ); 
 the pouring device ( 53 ) comprises a body formed by a first curved portion ( 53   a ) connected to said throughout orifice ( 74   a ) and a second straight portion ( 53   b ) extending radially from the central region of the top element and having a rim ( 53   c ) defining a pouring orifice ( 53   d ), said first curved portion ( 53   a ) and said second straight portion ( 53   b ) being integral with the top element; and 
 the protruding element comprises a protruding body surrounding the region close to the edge of the top element ( 100 ).