Device for automatically opening a container provided with a sealing element

Abstract

The present invention refers to an automatic opening device for a container provided with a spout having a rim with a sealing element firmly attached thereto, said automatic opening device for a container being provided with 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 . An automatic opening device for containers ( 1 , 61 , 140 ) provided with a sealing element ( 19 , 77 ) in a spout ( 12 , 65 ), an external screw thread ( 14 , 67 ) of at least one entry being provided in the said spout ( 12 , 65 ), the automatic opening device for containers ( 1 , 61 , 140 ) comprising a base element ( 1   b ,  61   b ,  141   b ) and a locking device ( 6 , 62 ), in that:
 the base element ( 1   b ,  61   b ,  141   b ) comprises a first sidewall ( 11 , 72 ) and an upper element ( 10 . 73 ) whose edges are joined to the upper edge of the first sidewall ( 11 , 72 );   the upper element ( 10 , 73 ) is provided with a throughout hole ( 2   a , 74   a );   a screw thread ( 5 , 64 ) of at least one entry is provided in the internal region of the first sidewall ( 11 , 72 ) of the base element ( 1   b , 61   b );   the locking device ( 6 , 62 ) comprises an elongated body provided at its upper edge with a plurality of upper rupture elements ( 6   a , 62   a ), which are connected to the lower edge of the base element ( 1   b , 61   b ); and   the locking device ( 6 , 62 ) is provided in its lower region with a means for locking the automatic opening device for containers ( 1 , 61 ) in the spout ( 12 , 65 );   the automatic opening device for containers ( 1 , 61 ) characterized in that:   the upper element ( 10 , 73 ) is provided with a cutting device ( 3 , 63 ), which comprises a protruding hollow body extending downwardly, whose upper region is connected to the lower region of the upper element ( 10 , 73 ) where the throughout hole ( 2   a , 74   a ) is located, being a continuation of the hollow portion of the cutting device ( 3 , 63 ), the lower region of the cutting device ( 3 , 63 ) being provided with a plurality of cutting elements ( 3   a , 63   a ); and   the external screw thread ( 14 , 67 ) of the spout ( 12 , 65 ) and the internal screw thread ( 5 , 64 ) in the internal region of the first sidewall ( 11 , 72 ) of the base element ( 1   b ,  61   b ) have the same number of entries and comprise screw threads of the same orientation, chosen from the group comprising right-hand orientation and left-hand orientation.   
     
     
         2 - An automatic opening device for containers ( 1 ) according to  claim 1 , characterized in that:
 it is additionally provided with a closing element ( 1   a ) which is connected to the base element ( 1   b ) by means of a connection chosen from the group comprising a connecting pivoting element ( 7 ), a screwed-threaded connection and a pressure connection;   the closing element ( 1   a ) comprises a second sidewall ( 9 ) and an upper element ( 8 ) whose edges are joined to the upper edge of the second sidewall ( 9 ), the upper element ( 8 ) being provided in its internal lower region with a protruding sealing element ( 4 );   a central protruding ring ( 2 ) encircles the throughout hole ( 2   a ) in the central region of the upper element ( 10 ); and   said means for locking the automatic opening device for containers ( 1 ) comprises a plurality of lower locking elements ( 6   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 locking device ( 6 ), and the body of each lug being inclined towards the geometric axis of the locking device ( 6 ).   
     
     
         3 - An automatic opening device for containers ( 1 ) according to  claim 2 , characterized in that:
 the internal screw thread ( 5 ) provided in the internal region of the first sidewall ( 11 ) comprises a screw thread of multiple entries, each screw thread ( 5 ) comprising flanks of internal screw thread;   an upper ring ( 16 ), an intermediate ring ( 18 ) and a lower ring ( 17 ) are provided in the upper, intermediate and lower regions, of the external region of the spout ( 12 ), respectively;   the diameter of the upper ring ( 16 ) is smaller than the diameter of the intermediate ring ( 18 ), and the diameter of the intermediate ring ( 18 ) is smaller than the diameter of the lower ring ( 17 ); and   the external screw thread ( 14 ) of the spout ( 12 ) comprises a multiple entries screw thread, each entry comprising a lower flank ( 14   a ) and an upper flank ( 14   b ), with a root ( 15 ) formed between the lower flank ( 14   a ) and the upper flank ( 14   b ), in that the upper flank ( 14   b ) has an extended upper end ( 21 ), which extends beyond the upper ring ( 16 ), and the lower flank ( 14   a ) has its upper end even with lower region of the upper ring ( 16 ).   
     
     
         4 - An automatic opening device for containers ( 1 ) according to  claim 2 , characterized in that:
 the internal screw thread ( 5 ) provided in the internal region of the first sidewall ( 11 ) comprises a multiple entries screw thread, each comprising bipartite internal screw thread flanks, which comprise an upper section ( 5   s ) and a lower section ( 5   i );   an upper ring ( 16 ), an intermediate ring ( 18 ) and a lower ring ( 17 ) are provided in the upper, intermediate and lower regions, respectively, of the external region of the spout ( 12 );   the diameter of the upper ring ( 16 ) is smaller than the diameter of the intermediate ring ( 18 ), and the diameter of the intermediate ring ( 18 ) is smaller than the diameter of the lower ring ( 17 );
 a guiding element ( 22 ) is provided in the external region of the first sidewall ( 11 ), which extends parallel to the upper edge of the spout ( 12 ); 
   the external screw thread ( 14 ) of the spout ( 12 ) comprises a multiple entry screw thread, each entry comprising a lower flank ( 14   a ) and an upper flank ( 14   b ), with a root ( 15 ) formed between the lower flank ( 14   a ) and the upper flank ( 14   b ), where the upper flank ( 14   b ) has an upper end ( 21 ) that extends to the guiding element ( 22 ) and the lower flank ( 14   a ) has its upper end facing the lower region of the upper ring ( 16 ); and   a limiter of rotation ( 23 ) is formed between the upper end ( 21 ) of the upper flank ( 14   b ) and the guiding element ( 22 ).   
     
     
         5 - An automatic opening device for containers ( 1 ) according to  claim 3 , characterized in that:
 the locking device ( 6 ) is provided in its lower portion with a circular wing ( 6   e ), which extends from the lower end of the locking device ( 6 ) and completely encircles the lower ring ( 17 ); and   a spacing (H) is provided between the upper ends of the locking elements ( 6   b ) of the locking device ( 6 ) regarding the lower face of the intermediate ring ( 18 ).   
     
     
         6 - An automatic opening device for containers ( 1 ) according to  claim 5 , characterized in that each external screw thread flanks ( 5 ) is provided with a rotational locking recess and each internal screw thread flanks ( 14 ) is provided with a rotational locking projection, said locking recess and projection being designed to fit and lock the automatic opening device for containers ( 1 ) at the end of the rotation operation for opening said container. 
     
     
         7 - An automatic opening device for containers ( 1 ) according to  claim 4 , characterized in that each external screw thread flank ( 5 ) is provided with a locking recess and each internal screw thread flank ( 14 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 1 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         8 - An automatic opening device for containers ( 1 ) according to  claim 1 , characterized in that:
 the base element ( 1   b ) be provided with a pouring device ( 53 ) which comprises an integrally hollow body formed by a first curved portion ( 53 ) and a second portion ( 53   b ), which extends over the upper face of the base element ( 1   b ) towards the edge, where the first curved portion ( 53 ) has one end connected to the hollow body of the cutting device ( 3 ), and the other end of the first curved portion ( 53 ) is connected to one end of the second portion ( 53   b ), whose other end is chamfered and forms an edge ( 53   c ), which defines a throughout hole ( 53   d ); and   a closing element ( 1   a ) is additionally provided, which is connected to the base element ( 1   b ) by means of a pivoting connecting element, the closing element ( 1   a ) being provided with a sealing element ( 54 ), which is designed to rest on the edge ( 53   c ) of the second horizontal portion ( 53   b ) when the closing element ( 1   a ) is in the closed position.   
     
     
         9 - An automatic opening device for containers ( 1 ) according to  claim 8 , characterized in that each external screw thread flank ( 5 ) is provided with a locking recess and each internal screw thread flank ( 14 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 1 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         10 - An automatic opening device for containers ( 1 ) according to  claim 1 , characterized in that:
 be provided with a closing element ( 1   a ), which comprises a second sidewall ( 9 ) and an upper element ( 8 ) whose edges are joined to the upper edge of the second sidewall ( 9 ), the upper element ( 8 ) being provided in its internal central region with a protruding sealing element ( 4 );   a suction spout ( 24 ) is provided in the upper region of the base element ( 1   b ), the suction spout ( 24 ) comprising a hollow body that extends above the base element ( 1   b ) and encircles the throughout hole ( 2   a ), a mouth ring ( 24   a ) being provided at the upper end of the suction spout ( 24 );   the internal screw thread ( 5 ) provided in the internal region of the first sidewall ( 11 ) comprises a screw thread of multiple entries, each comprising internal screw threads flanks;   an upper ring ( 16 ), an intermediate ring ( 18 ) and a lower ring ( 17 ) are provided in the upper, intermediate and lower regions, respectively, of the external region of the spout ( 12 );   the diameter of the upper ring ( 16 ) is smaller than the diameter of the intermediate ring ( 18 ), and the diameter of the intermediate ring ( 18 ) is smaller than the diameter of the lower ring ( 17 );   the external screw thread ( 14 ) of the spout ( 12 ) comprises a multiple entries screw thread, each comprising a lower flank ( 14   a ) and an upper flank ( 14   b ), with a root ( 15 ) formed between the lower flank ( 14   a ) and the upper flank ( 14   b ), where the upper flank ( 14   b ) has an extended upper end ( 21 ), which extends beyond the upper ring ( 16 ), and the lower flank ( 14   a ) has its upper end even with the lower region the upper ring ( 16 ); and   said locking means comprises a plurality of lower locking elements ( 6   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 locking device ( 6 ), and the body of each lug being inclined towards the geometric axis of the locking device ( 6 ).   
     
     
         11 - An automatic opening device for containers ( 1 ) according to  claim 10 , characterized in that:
 said internal screw thread flanks ( 5 ) are bipartite, and comprise an upper section ( 5   s ) and a lower section ( 5   i );   a guiding element ( 22 ) is provided in the outer region of the first sidewall ( 11 ), which extends parallel to the upper edge of the spout ( 12 ); and   a limiter of rotation ( 23 ) is formed between the upper end ( 21 ) of the upper flank ( 14   b ) and the guiding element ( 22 ).   
     
     
         12 - An automatic opening device for containers ( 1 ) according to  claim 10 , characterized in that a spacing (H) is provided between the upper ends of the locking elements ( 6   b ) of the locking device ( 6 ) regarding the lower face of the intermediate ring ( 18 ). 
     
     
         13 - Automatic opening device for containers ( 1 ) according to  claim 12 , characterized in that each external screw thread flank ( 5 ) is provided with a locking recess and each internal screw thread flank ( 14 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 1 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         14 - Automatic opening device for containers ( 1 ) according to  claim 11 , characterized in that each external screw thread flank ( 5 ) is provided with a locking recess and each internal screw thread flank ( 14 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 1 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         15 - An automatic opening device for containers ( 1 ) according to  claim 1 , characterized in that:
 the base element ( 1   b ) is additionally provided with a protruding plugging element ( 58 ) formed by an elongated hollow body whose upper portion is closed, and the lower portion is open and firmly connected to the upper element ( 10 ) of the base element ( 1   b ), the hollow portion of the protruding plugging element ( 58 ) being aligned and in communication with the throughout hole ( 2   a ); and   a cap ( 59 ) is connected to the base element ( 1   b ) by means of a flexible connecting element ( 60 ).   
     
     
         16 - An automatic opening device for containers ( 1 ) according to  claim 15 , characterized in that each external screw thread flank ( 5 ) is provided with a locking recess and each internal screw thread flank ( 14 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 1 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         17 - An automatic opening device for containers ( 61 ) according to  claim 1 , characterized in that:
 It is additionally be provided with a closing element ( 61   a ), which is connected to the base element ( 61   b ) by means of a connection chosen from the group comprising a pivoting connection, a screwed-threaded connection and a pressure connection;   the closing element ( 61   a ) comprises a second sidewall ( 71 ) and an upper element ( 75 ) whose edges are joined to the upper edge of the second sidewall ( 71 ), the upper element ( 75 ) being provided in its internal lower region with a protruding sealing element ( 76 );   a central protruding ring ( 74 ) encircles the throughout hole ( 74   a ) in the upper member ( 73 );   said means for the locking of the automatic opening device for containers ( 61 ) comprises a plurality of lower locking elements ( 62   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 locking device ( 62 ), and the body of each lug being inclined towards the geometric axis of the locking device ( 62 );   the spout ( 65 ) is provided with a retaining ring ( 68 ), located below the external screw thread ( 67 ), and a lower ring ( 69 ) located in its lower region;   the spout ( 65 ) has a linear extension (L 1 ) between its edge and the edge of the retaining ring ( 68 ), and a linear extension (C 1 ) between the edge of the retaining ring ( 68 ) and the upper portion of the 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  in the container ( 70 );   the base element ( 61   b ) has a linear extension (L 2 ) between the lower part of the ring-shaped engagement region ( 74   a ) of the element and its lower edge, and a linear extension (C 2 ) between that lower edge of the base element ( 61   b ) and an imaginary plane formed by the upper region of the lower locking elements ( 62   b ); and   said linear extensions (L 1 ) and (L 2 ) are substantially identical, and the linear extensions (C 1 ) and (C 2 ) are also substantially identical.   
     
     
         18 - An automatic opening device for containers ( 61 ) according to  claim 17 , characterized in that each external screw thread flank ( 67 ) is provided with a locking recess and each internal screw thread flank ( 64 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 61 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         19 - An automatic opening device for containers ( 1 ) according to  claim 1 , characterized in that:
 the base element ( 61   b ) is additionally provided with a protruding plugging element ( 58 ) formed by an elongated hollow body whose upper portion is closed, and the lower portion is open and firmly connected to the upper element ( 73 ) of the base element ( 61   b ), the hollow portion of the protruding plugging element ( 58 ) being aligned and in communication with the throughout hole ( 74   a );   a cap ( 59 ) is connected to the base element ( 1   b ) by means of a flexible connecting element ( 60 );   said means for locking the automatic opening device for containers ( 61 ) comprises a plurality of lower locking elements ( 62   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 locking device ( 62 ), and the body of each lug being inclined towards the geometric axis of the locking device ( 62 );
 the spout ( 65 ) is provided with a retaining ring ( 68 ), located below the external screw thread ( 67 ), and a lower ring ( 69 ) located in its lower region; 
   the spout ( 65 ) has a linear extension (L 1 ) between its edge and the edge of the retaining ring ( 68 ), and a linear extension (C 1 ) between the edge of the retaining ring ( 68 ) and the upper portion of the 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  in the container ( 70 );   the base element ( 61   b ) has a linear extension (L 2 ) between the lower part of the ring-shaped engagement region ( 74   a ) of the element and its lower edge, and a linear extension (C 2 ) between that lower edge of the base element ( 61   b ) and an imaginary plane formed by the upper region of the lower locking elements ( 62   b ); and   said linear extensions (L 1 ) and (L 2 ) are substantially identical, and the linear extensions (C 1 ) and (C 2 ) are also substantially identical.   
     
     
         20 - An automatic opening device for containers ( 61 ) according to  claim 17 , characterized in that:
 the base element ( 61   b ) is provided with a pouring device ( 53 ) which comprises an integrally hollow body formed by a first curved portion ( 53   a ) and a second portion ( 53   b ), which extends over the upper face of the base element ( 1   b ) towards the edge, where the first curved portion ( 53 ) has one end connected to the hollow body of the cutting device ( 3 ), and the other end of the first curved portion ( 53 ) is connected to one end of the second portion ( 53   b ), whose other end is chamfered and forms an edge ( 53   c ), which defines a throughout hole ( 53   d ); the   the closing element ( 61   a ) is provided with a sealing element ( 54 ), which is designed to rest on the edge ( 53   c ) of the second horizontal portion ( 53   b ) when the closing element ( 61   a ) is in the closed position;   said means for locking the automatic opening device for containers ( 61 ) comprises a plurality of lower locking elements ( 62   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 locking device ( 62 ), and the body of each lug being inclined towards the geometric axis of the locking device ( 62 );   the spout ( 65 ) is provided with a retaining ring ( 68 ), located below the external screw thread ( 67 ), and a lower ring ( 69 ) located in its lower region;   the spout ( 65 ) has a linear extension (L 1 ) between its edge and the edge of the retaining ring ( 68 ), and a linear extension (C 1 ) between the edge of the retaining ring ( 68 ) and the upper portion of the lower ring ( 69 ) where the bottom edge of the locking device ( 62 ) will touch, at the end of the assembly of the automatic opening device for containers ( 61 ) in the container ( 70 );   the base element ( 61   b ) has a linear extension (L 2 ) between the lower part of the ring-shaped engagement region ( 74   a ) of the element and its lower edge, and a linear extension (C 2 ) between that lower edge of the base element ( 61   b ) and an imaginary plane formed by the upper region of the lower locking elements ( 62   b ); and   said linear extensions (L 1 ) and (L 2 ) are substantially identical, and the linear extensions (C 1 ) and (C 2 ) are also substantially identical.   
     
     
         21 - An automatic opening device for containers ( 61 ) according to  claim 20 , characterized in that each external screw thread flank ( 67 ) is provided with a locking recess and each internal screw thread flank ( 64 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 61 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         22 - An automatic opening device ( 41 ) for containers ( 51 ) provided with a sealing element ( 19 ) in a spout ( 47 ), the automatic opening device ( 41 ) comprising a base element ( 41   b ) and a guiding and locking device ( 46 ), where:
 the spout ( 47 ) comprises an elongated cylindrical body ( 48 ), a first upper ring ( 49 ) and a second lower ring ( 50 ), larger in diameter than the first upper ring ( 49 ), the connection between the spout ( 47 ) and the automatic opening device for containers ( 41 ), one from the group comprising screwed-thread and bayonet;   the base element ( 41   b ) comprises a first sidewall element ( 54 ) and an upper member ( 55 ) whose edges are joined to the upper edge of the first sidewall element ( 54 );   the central region of the upper member ( 55 ) is provided with a throughout hole ( 39   a );   the guiding and locking device ( 46 ) comprises an elongated body provided at the upper edge with a plurality of upper rupture elements ( 46   a ), which are connected to the lower edge of the base element ( 41   b ); and   the internal lower region of the guiding and locking device ( 46 ) is provided with a locking means;   the automatic opening device for containers ( 41 ) characterized in that:   the lower central region of the upper member ( 55 ) of the base member ( 41   b ) is provided with a cutting device ( 43 ), which comprises a hollow protruding body whose upper region is connected to the lower region of the upper member ( 55 ) where the throughout hole ( 39   a ) is located, which is a continuation of the hollow portion of the cutting device ( 43 ), the lower region of the cutting device ( 43 ) being provided with a plurality of cutting elements ( 43   a );   a screw thread ( 45 , 145 ) of at least one entry is provided in the lower external region of the first sidewall element ( 54 ) of the base element ( 41   b );   the upper internal region of the guiding and locking device ( 46 ) is provided with an internal screw thread ( 44 , 144 ) of at least one entry; and   the screw thread ( 45 , 145 ) provided in the external lower region of the first sidewall element ( 54 ) of the base element ( 41   b ) and the internal screw thread ( 44 , 144 ) provided in the upper internal region of the guiding and locking device ( 46 ) comprise screw threads of equal orientation, defined between right and left   
     
     
         23 - An automatic opening device for containers ( 41 ), according to  claim 22 , characterized in that:
 additionally be provided with a closing element ( 41   a ) which is connected to the base element ( 41   b ) by means of a connection chosen from the group comprising a pivoting connection element, a screw-threaded connection, and a pressure connection element, the closing element ( 41   a ) comprising a second sidewall element ( 56 ) and an upper member ( 57 ) whose edges are joined to the upper edge of the second sidewall element ( 56 ), the upper member ( 57 ) being provided in its internal center region of a protruding sealing element ( 40 );   a central protruding ring ( 39 ) encircling the throughout hole ( 39   a ) in the central region of the upper member ( 55 );   the screw thread ( 44 , 144 ) comprises a screw thread of multiple entries, each comprising a lower flank ( 44   a ,  144   a ) and an upper flank ( 44   b ,  144   b ), with a root ( 44   c ,  144   c ) formed between these two flanks, wherein the upper ends ( 44   d ,  144   d ) of the upper flanks ( 44   b ,  144   b ) extend above the upper ends of the lower flanks ( 44   b ,  144   b ); and   said locking means 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 ), and the body of each lug being inclined towards the geometric axis of the guiding and locking device ( 46 ).   
     
     
         24 - An automatic opening device for containers ( 41 ) according to  claim 23 , characterized in that:
 the base element ( 41   b ) is provided with a pouring device ( 53 ) which comprises a hollow body formed by a first curved portion ( 53   a ) and a second portion ( 53   b ), which extends over the upper face of the base element ( 41   b ) towards its edge, where the first curved portion ( 53   a ) has one end connected to the hollow body of the cutting device ( 43 ), and the other end of the first curved portion ( 53   a ) is connected to one end of the second portion ( 53   b ), whose other end is beveled and forms a rim ( 53   c ), which defines a throughout hole ( 53   d ); and   the closing element ( 41   a ) is provided with a sealing element ( 54 ), which is designed to rest on the edge ( 53   c ) of the second horizontal portion ( 53   b ) when the closing element ( 41   a ) is in the closed position.   
     
     
         25 - An automatic opening device for containers ( 41 ) according to  claim 24 , characterized in that reinforcement wings ( 46   d ) are provided on the upper edge of the guiding and locking device ( 46 ), located in the regions where the upper ends ( 44   d ,  144   d ) of the upper flanks ( 44   b ,  144   b ) are extended. 
     
     
         26 - An automatic opening device for containers ( 41 ) according to  claim 25 , characterized in that each external screw thread flank ( 45 , 145 ) is provided with a locking recess and each internal screw thread flank ( 44 , 144 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 41 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         27 - An automatic opening device for containers ( 41 ) according to  claim 23 , characterized in that:
 a plurality of guiding fins ( 46   c ) is provided in the internal lower region of the guiding and locking device ( 46 );   the base element ( 41   b ) is provided with a pouring device ( 53 ) which comprises an integrally hollow body formed by a first curved portion ( 53   a ) and a second portion ( 53   b ), which extends over the upper face of the base element ( 41   b ) towards the edge, where the first curved portion ( 53   a ) has one end connected to the hollow body of the cutting device ( 43 ), and the other end of the first curved portion ( 53   a ) is connected to one end of the second portion ( 53   b ), whose other end is chamfered and forms an edge ( 53   c ), which defines a throughout hole ( 53   d ); and   the closing element ( 41   a ) is provided with a sealing element ( 54 ), which is designed to rest on the edge ( 53   c ) of the second horizontal portion ( 53   b ) when the closing element ( 41   a ) is in the closed position.   
     
     
         28 - An automatic opening device for containers ( 41 ), according to  claim 27 , characterized in that reinforcement wings ( 46   d ) are provided on the upper edge of the guiding and locking device ( 46 ), located in the regions where the upper ends ( 44   d ,  144   d ) of the upper flanks ( 44   b ,  144   b ) are extended. 
     
     
         29 - An automatic opening device for containers ( 41 ) according to  claim 28 , characterized in that each external screw thread flank ( 45 , 145 ) is provided with a locking recess and each internal screw thread flank ( 44 , 144 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 41 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         30 - An automatic opening device for containers ( 41 ) according to  claim 23 , characterized in that:
 an internal screw thread ( 52 ) is provided in the lower internal region of the guiding and locking device ( 46 );   the base element ( 41   b ) is provided with a pouring device ( 53 ) which comprises an integrally hollow body formed by a first curved portion ( 53   a ) and a second portion ( 53   b ), which extends over the upper face of the base element ( 41   b ) towards the edge, where the first curved portion ( 53   a ) has one end connected to the hollow body of the cutting device ( 43 ), and the other end of the first curved portion ( 53   a ) is connected to one end of the second portion ( 53   b ), whose other end is beveled and forms an rim ( 53   c ), which defines a throughout hole ( 53   d ); and   the closing element ( 41   a ) is provided with a sealing element ( 54 ), which is designed to rest on the edge ( 53   c ) of the second horizontal portion ( 53   b ) when the closing element ( 41   a ) is in the closed position.   
     
     
         31 - An automatic opening device for containers ( 41 ) according to  claim 30 , characterized in that reinforcement wings ( 46   d ) are provided on the upper edge of the guiding and locking device ( 46 ), located in the regions where the upper ends ( 44   d ,  144   d ) of the upper flanks ( 44   b ,  144   b ) are extended. 
     
     
         32 - An automatic opening device for containers ( 41 ) according to  claim 31 , characterized in that each external screw thread flank ( 45 , 145 ) is provided with a locking recess and each internal screw thread flank ( 44 , 144 ) is provided with a locking projection, said locking recess and locking projection being designed to fit and lock the automatic opening device for containers ( 41 ) to preclude rotational movements at the end of the operation to open said container. 
     
     
         33 - A spout adapter device ( 25 , 35 ) for application to a spout ( 26 ) of a container ( 20 ), where:
 a sealing element ( 19 ) is firmly adhered to the rim of the spout ( 26 );   the external upper region of the spout ( 26 ) is provided with an external screw thread ( 30 ) with at least one entry, with an orientation chosen from the group comprising right-hand and left-hand;   a retaining ring ( 33 ) is located immediately below the external screw thread ( 30 ); and   the external lower region of the spout ( 26 ) is provided with a base ring ( 28 ), larger in diameter than the retaining ring ( 33 );   the spout adapter device ( 25 , 35 ) characterized in that it comprises an upper portion ( 25   s ,  35   s ) connected to a lower portion ( 25   i ,  35   i ), of larger diameter, in which:   the external upper region of the upper portion ( 25   s ,  35   s ) is provided with a protruding ring ( 25   c ,  35   c ), located near the upper edge of the spout adapter device ( 25 , 35 );   an external screw thread ( 27 , 37 ) of at least one entry, having orientation chosen from the group comprising right-hand and left-hand, is provided in the external region of the upper portion ( 25   s , 35   s ), which comprises a lower flank ( 27   a , 37   a ) and an upper flank ( 27   b , 37   b ), with a root ( 27   c , 37   c ) formed between the lower flank ( 27   a ,  37   a ) and the upper flank ( 27   b , 37   b ), the upper flank ( 27   b , 37   b ) of the external screw thread ( 27 , 37 ) is provided with an upper end ( 31 , 32 ) that extends beyond the protruding ring ( 25   c , 35   c ), while the upper end of the lower flank ( 27   a , 37   a ) faces the lower portion of the protruding ring ( 25   c , 35   c );   an internal screw thread ( 29 . 36 ) is provided in the internal region of the upper portion ( 25   s ,  35   s ) of the spout adapter device ( 25 . 35 ); and   a locking means is provided in the internal lower region of the lower portion ( 25   i ,  35   i ).   
     
     
         34 - A spout adapter device ( 25 ) according to  claim 33 , characterized in that the locking means provided in the internal lower region of the lower portion ( 25   i ) comprises a plurality of lower locking elements ( 35   b ) which comprise spaced apart lugs distributed circularly, the lower portion of each lug being joined to the lower region of the lower portion ( 35   i ) of the spout adapter device ( 35 ), and the body of each lug being inclined towards the geometric axis of the spout adapter device ( 35 ). 
     
     
         35 - A spout adapter device ( 25 ) according to  claim 33 , characterized in that:
 the locking means provided in the internal lower region of the lower portion ( 25   i ) comprises a plurality of lower locking elements ( 35   b ) which comprise spaced apart lugs distributed circularly, the lower portion of each lug being joined to the lower region of the lower portion ( 35   i ) of the spout adapter device ( 35 ), and the body of each lug being inclined towards the geometric axis of the spout adapter device ( 35 ); and   a retaining edge ( 25   r ) is provided in the upper region of the lower portion ( 25   i ).   
     
     
         36 - A spout adapter device ( 35 ) according to  claim 33 , characterized in that:
 it is additionally provided with a medial portion ( 35   m ), the upper region of which is connected to the lower region of an edge ( 34 ) provided in the lower region of the upper portion ( 35   s ), while the lower region of the medial portion ( 35   m ) is connected the upper region of the lower portion ( 35   i );   the medial portion ( 35   m ) is provided with a plurality of spaced apart radial openings ( 35   a ) distributed circumferentially; and   the locking means provided in the internal lower region of the lower portion ( 35   i ) comprises a plurality of lower locking elements ( 35   b ) which comprise spaced apart lugs distributed circularly, the lower portion of each lug being joined to the lower region of the lower portion ( 35   i ) of the spout adapter device ( 35 ), and the body of each lug being inclined towards the geometric axis of the spout adapter device ( 35 ).