Coffee capsule

Abstract

The object of the invention concerns a coffee capsule, in particular a Nespresso™-compatible capsule that improves the yield of the product obtained through the use of a depression or concavity on the side where the water and/or steam enters the capsule, using a radial diversion of the flow of the water and/or steam that otherwise would enter along a axis parallel to the axis of the capsule.

1 ) Nespresso™ compatible capsule for making coffee and/or brews with a body in the shape of a truncated cone ( 2 ), characterised by the fact that on the side where the water and/or steam goes in there is a concavity or a depression ( 6 ) that stretches out and penetrates the interior of the body ( 2 ) of the capsule, in which depression ( 6 ) there is a series of radial holes ( 9 ) through which the inflow of water and/or steam that comes into said depression ( 6 ), with an axis parallel to the main axis of said capsule ( 1 ), is deviated to pass through the inside body ( 2 ) of the capsule ( 1 ) itself. 
     
     
         2 ) Nespresso™ compatible capsule for making coffee and/or brews with a tubular body, characterised by the fact that on the side where the water and/or steam goes in there is a concavity or a depression ( 6 ) that stretches out and penetrates the interior of the body ( 2 ) of the capsule, in which depression ( 6 ) there is a series of radial holes ( 9 ) through which the inflow of water and/or steam that comes into said depression ( 6 ), with an axis parallel to the main axis of said capsule ( 1 ), is deviated to pass through the inside body ( 2 ) of the capsule ( 1 ) itself. 
     
     
         3 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that said depression ( 6 ) has a tubular or truncated cone shape with said series of radial holes ( 9 ) on the side wall ( 8 ), varying the incidence of the flow of water and/or steam going in from parallel to the main axis of the capsule ( 1 ) to practically radial. 
     
     
         4 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that said depression ( 6 ), with the volume included in it a transition chamber defined by a side wall ( 8 ) closed on a depression base ( 9 ), blocks the flow of water and/or steam going in a straight line towards the outlet of the capsule ( 1 ) obstructed by said depression base ( 7 ), and avoiding the presence of preferential channels of the rectilinear flow towards the outlet, diverging the radial flow of the water and/or steam in order to make full, use of all the content in the body ( 2 ) of the capsule ( 1 ). 
     
     
         5 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that inside the volume of this depression ( 6 ) there is a peg, whose profile that is tapered towards the flow coming in, facilitates the divergence of the flow in the change of direction from parallel to the main axis of the capsule ( 1 ) to radial. 
     
     
         6 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that within the volume of this depression ( 6 ) there is a pointed peg against the direction of the flow of the water and/or steam coming in, which facilitates the breaking of a protective closure on the entrance to the depression ( 6 ), with said protective closure, or cover, solidly joined to the outer edge of the depression ( 6 ). 
     
     
         7 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that said radial holes have hole sizes such that it could be called a filter with respect to the product contained in the capsule, avoiding the need to put a further filter element at the entrance. 
     
     
         8 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that said radial holes ( 9 ) are arranged adjacent to the inside wall, or bottom ( 11 ) of the side where the water enters ( 5 ), with the clear advantage of deviating the radial flow towards the bottom ( 11 ) of the capsule ( 1 ), thereby affecting all the content in it. 
     
     
         9 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that said depression ( 6 ) is protected by a cover thereby creating a self-protected capsule ( 1 ), avoiding further packaging protection. 
     
     
         10 ) Nespresso™ compatible capsule according to the previous claim, characterised by the fact that said cover can be removed with a plain flap or another zone that can be easily gripped by the user in order to remove it. 
     
     
         11 ) Nespresso™ compatible capsule according to  claim 1  or a capsule according to  claim 2 , characterised by the fact that said depression ( 6 ) is put on a raise part of the flat side where the water enters the capsule ( 1 ), therefore partly protruding from the body of the capsule ( 1 ). 
     
     
         12 ) Nespresso™ compatible capsule according to  claim 9 , characterised by the fact that said cover, which renders said capsule  1  auto-protected, can be broken or cracked by the pressure of the water and/or the steam coming in. 
     
     
         13 ) Nespresso™ compatible capsule according to  claim 9 , characterised by the fact that said cover, which renders said capsule  1  auto-protected, can be penetrated by an injection needle in order to adapt to coffee machines that use this type of injection needle.