Capsule For Beverages

Abstract

Capsule for beverages includes a casing with a base and side wall defining a cavity suitable for containing an initial product for combining a fluid to obtain a final product, and a flange rim extending from the side wall. The base wall has an opening bounded by a base rim extending up to the side wall; the capsule includes a cover element, fixed to the flange rim to seal hermetically the cavity which is perforable by an extracting or injecting arrangement of a dispensing machine having a usable capsule, and a closing element fixed to the base rim to seal hermetically the capsule, which is respectively perforable by an injecting or extracting arrangement of the dispensing machine; wherein the closing element has greater dimensions than the base wall and is fixed to the side wall remaining joined to the capsule in the presence of a pressure increase inside the capsule.

1 - 9 . (canceled) 
     
     
         10 . A capsule for beverages comprising a casing in turn comprising: a base wall and a side wall defining a cavity that is suitable for containing an initial product to be combined with a fluid to obtain a final product, and further a flange rim extending from said side wall, said base wall having an opening bounded by a base rim extending up to said side wall; wherein said capsule further comprises a cover element, fixed to said flange rim to seal hermetically said cavity which is perforable by an extracting arrangement or an injecting arrangement of a dispensing machine in which said capsule is usable, and a closing element fixed to said base rim to seal hermetically said opening, which closing element is respectively perforable by an injecting arrangement or an extracting arrangement of said dispensing machine; wherein said closing element is of greater dimensions than said base wall and is also fixed to said side wall to remain joined to said capsule even in the presence of a pressure increase inside said capsule. 
     
     
         11 . The capsule according to  claim 10 , wherein said base rim defines a base edge with said side wall, said closing element extending beyond said base edge and being superimposed on said side wall along the entire said base edge. 
     
     
         12 . The capsule according to  claim 10 , wherein said closing element is superimposed and fixed to said side wall for at least one strip of 2 mm measured from said base edge, in particular for a strip of 2.5 mm. 
     
     
         13 . The capsule according to  claim 10 , wherein said closing element is superimposed and fixed to said side wall for the entire side wall. 
     
     
         14 . The capsule according to  claim 11 , wherein said closing element is disk-shaped and has a diameter that is greater than a diameter of said base wall. 
     
     
         15 . The capsule according to  claim 14 , wherein said side wall comprises a first portion connected to said base edge and a second portion defining with said first portion a side edge, said closing element being fixed to said first portion of said side wall. 
     
     
         16 . The capsule according to  claim 15 , wherein said first portion is of frustoconical shape and has a first tilt that is greater than a second tilt of said second portion, which is also of frustoconical shape, said first and said second tilt being measured with respect to a symmetry axis of said capsule. 
     
     
         17 . The capsule according to  claim 10 , wherein said closing element is fixed to said base rim of said capsule and to said side wall by thermowelding at a joining portion. 
     
     
         18 . The capsule according to  claim 17 , wherein said base rim defines a base edge with said side wall, said closing element extending beyond said base edge and being superimposed on said side wall along the entire said base edge, said side wall comprising a first portion connected to said base edge and a second portion defining with said first portion a side edge, said closing element being fixed to said first portion of said side wall and wherein said joining portion extends in said base rim and in said first portion through said base edge up to said side edge.