System for automatic opening containers provided with sealing elements

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 (41b) a cutting device (43) and a guiding and locking device (46);
• the base element (41b) 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 (39a);
• the external portion of the first sidewall (54) of the base element (41b) 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 (46a) which are connected to a lower edge of the elongated body of the base element (41b), the lowermost region of the guiding and locking device (46) being provided with a locking means (46b) 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 (41b), encircling said throughout orifice (39a), the lower portion of the cutting device (3) being provided with at least one cutting element (3a);
• 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 (41b);
• the internal screw thread (44) comprises lower flanks (44a) and upper flanks (44b), the latter having upper ends (44d) which extend above the upper ends of the lower flanks (44a) 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).

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 (61b), a cutting device (63) and locking device (62);
• the base element (61b) 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 (74a);
• the internal portion of the first sidewall (72) of the base element (61b) 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 (62a) which are connected to the lower edge of the base element (61b), the lowermost region of the locking device (62) being provided with a locking means (62b) 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 (74a), the lower portion of the cutting device (63) being provided with at least one cutting element (63a);
• the spout (65) has a linear extension (L1) between its rim and the edge of the first upper ring (68), and a linear extension (C1) 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 (61b) of the automatic opening device for containers (61) has a linear extension (L2) between the lower part of the annular ring region (73a) and the lower edge of the base element (62), and the locking device (62) has a linear extension (C2) between said lower edge of the base element (61b) and an imaginary plane formed by the upper region of the lower locking means (62b);
• said linear extensions (L1) and (L2) are substantially identical, and the linear extensions (C1) and (C2) 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.

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 (90b), a puncture device (93) and a locking device (96);
• the base element (90b) comprises a sidewall (97) whose edges are joined to a top element (100) provided with a throughout orifice (92a);
• 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 (96a) which are connected to a lower edge of the elongated body of the base element (90b), 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 (92a) is located, the latter being a continuation of the hollow portion of the puncture device (93), the latter being also provided with lateral passages (93b);
• said internal screw thread (95) of the base element (90b) 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 (92a) 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 (92a), thereby enabling the product contained into the container (101) to pass through the lateral passages (93b) of the puncture device (93) and next pass through the throughout orifice (92a) of the base element (90b).