DISPENSER
A dispenser includes a hollow containment body ( 2 ) able to be inserted in a bottle, having a hole ( 19 ) able to be positioned to face the interior of the bottle, a ring nut ( 14 ) able to be screwed on the neck of the bottle and having an annular shoulder ( 15 ) associated to, and covering, an annular lip ( 16 ) of the containment body ( 2 ) to mutually fasten ring nut ( 14 ) and containment body ( 2 ), at least one meatus ( 18 ) obtained in the containment body ( 2 ) to place selectively in fluid communication an inlet for air from the outside environment with the hole ( 19 ) in the containment body ( 2 ). The dispenser further includes spacer elements ( 20 ) active between the annular shoulder ( 15 ) and the annular lip ( 16 ) to define the air inlet passage.
1 . Dispenser comprising a hollow containment body ( 2 ) able to be inserted in a bottle, comprising a hole ( 19 ) able to be positioned to face the interior of said bottle and an orifice ( 5 ) for drawing liquid from said bottle, a ring nut ( 14 ) able to be screwed on the neck of said bottle, said ring nut ( 14 ) comprising an annular shoulder ( 15 ) associated to, and covering, an annular lip ( 16 ) of said containment body ( 2 ) to mutually fasten ring nut ( 14 ) and containment body ( 2 ), said dispenser further comprising a piston ( 7 ) able to slide within said containment body ( 2 ) between a raised position and a lowered position, a hollow stem ( 8 ) able to slide within said containment body ( 2 ), associated to a dispensing spout ( 9 ) to command the actuation of said piston ( 7 ) and dispense fluid contained in said bottle, at least one meatus ( 18 ) obtained in said containment body ( 2 ) to place selectively in fluid communication an inlet for air from the outside environment with the hold ( 19 ) in said containment body ( 2 ); characterised in that it comprises spacer means ( 20 ) active between said annular shoulder ( 15 ) and said annular lip ( 16 ) to define said air inlet passage.
2 . Dispenser as claimed in claim 1 comprising fluid-tight means active between said ring nut ( 14 ) and said dispensing spout ( 9 ).
3 . Dispenser as claimed in claim 1 wherein said spacer means ( 20 ) are provided on said annular lip ( 16 ) of said containment body ( 2 ).
4 . Dispenser as claimed in claim 3 wherein said spacer means ( 20 ) comprise at least one projection ( 21 ) that develops from said annular lip ( 16 ) of the containment body ( 2 ) towards said annular shoulder ( 15 ).
5 . Dispenser as claimed in claim 4 wherein said spacer means ( 20 ) comprise a plurality of mutually equidistant projections ( 21 ).
6 . Dispenser as claimed in claim 5 wherein said spacer means ( 20 ) further comprise a plurality of projections ( 21 ) positioned on the annular shoulder ( 15 ) of the ring nut ( 14 ).
7 . Dispenser as claimed in claim 1 wherein said spacer means ( 20 ) comprise a plurality of projections ( 21 ) positioned on the annular shoulder ( 15 ) of the ring nut ( 14 ).
8 . Dispenser as claimed in claim 6 wherein said projections ( 21 ) on the shoulder ( 15 ) of the ring nut ( 14 ) and on the lip ( 16 ) of the containment body ( 2 ) are saw-tooth shaped.
9 . Dispenser as claimed in claim 5 wherein each air passage is defined between two consecutive projections ( 21 ), the annular shoulder ( 15 ) of the ring nut ( 14 ) and the lip ( 16 ) of the containment body ( 2 ).
10 . Dispenser as claimed in claim 1 comprising a retaining ring ( 11 ) fastened within the containment body ( 2 ) within which slides said stem ( 8 ); said meatus ( 18 ) being at least partly obtained between said retaining ring ( 11 ) and said stem ( 8 ).
11 . Dispenser as claimed in claim 9 wherein said retaining ring ( 11 ) is positioned between said hole ( 19 ) in the containment body ( 2 ) and said air passage.
12 . Dispenser as claimed in claim 2 wherein said spacer means ( 20 ) are provided on said annular lip ( 16 ) of said containment body ( 2 ).
13 . Dispenser as claimed in claim 12 wherein said spacer means ( 20 ) comprise at least one projection ( 21 ) that develops from said annular lip ( 16 ) of the containment body ( 2 ) towards said annular shoulder ( 15 ).
14 . Dispenser as claimed in claim 6 wherein each air passage is defined between two consecutive projections ( 21 ), the annular shoulder ( 15 ) of the ring nut ( 14 ) and the lip ( 16 ) of the containment body ( 2 ).
15 . Dispenser as claimed in claim 7 wherein each air passage is defined between two consecutive projections ( 21 ), the annular shoulder ( 15 ) of the ring nut ( 14 ) and the lip ( 16 ) of the containment body ( 2 ).
16 . Dispenser as claimed in claim 8 wherein each air passage is defined between two consecutive projections ( 21 ), the annular shoulder ( 15 ) of the ring nut ( 14 ) and the lip ( 16 ) of the containment body ( 2 ).