Patent ID: 8528882

Claim:
A water carbonator comprising: (i) a tubular body ( 1 ) formed by metal material having two open ends, (ii) a pair of closure elements ( 2 , 4 ) formed by plastic material for said tubular body ( 1 ), wherein at least one ( 4 ) of said closure elements ( 2 , 4 ) comprises inlets ( 5 , 15 ) for fluids to be mixed and at least one outlet ( 22 ) for the mixed fluid, said closure elements ( 2 , 4 ) are each fitted between and supported by a radially rolled free end portion ( 35 ) of said tubular body ( 1 ) and an inwardly bent channel portion ( 34 ) of said tubular body ( 1 ) and rolled onto said closure elements ( 2 , 4 ), each closure element ( 2 , 4 ) partially protruding from said respective open end, and a central portion of one of said closure elements ( 2 , 4 ) comprises said inlets ( 5 , 15 ) and at least one outlet ( 22 ) and protrudes from said respective open end.