Liquid active substance dispenser for W.C. bowl

Abstract

The dispenser comprises a bottle ( 11 ) containing in its interior active substance (R) in the liquid state and having an exit mouth ( 12 ), and a support means ( 20 ) for supporting said bottle ( 11 ) in an inverted position, with its mouth ( 12 ) facing downwards, in a position subjected to the action of the flushing water flow. According to the invention, the support means ( 20 ) comprises: a closed transition chamber ( 30 ) positioned below the exit mouth ( 12 ) to contain and retain, for at least part of its volume, the active substance and, for closing the mouth ( 12 ), a member ( 21 ) which connects the mouth to the transition chamber ( 30 ) via a sized hole through which the active substance descends, said transition chamber ( 30 ) having an aperture ( 35 ) for the exit of the active substance from the chamber. There is also provided a substantially horizontal diffuser plate ( 25 ) positioned adjacent to said active substance exit aperture ( 35 ). Said exit aperture ( 35 ) is sized in relation to the physical-chemical characteristics of the active substance such that this occupies and closes the aperture ( 35 ) and also halts the discharge of the substance from the bottle interior, it outflowing therefrom only through a relatively short distance, said diffuser plate ( 25 ) being disposed in a position relative to the W.C. bowl such that the flushing water washes said exit aperture ( 35 ).

1 . A liquid active substance dispenser for a W.C. bowl, to be housed within the W.C. bowl, comprising a bottle ( 11 ) containing in its interior the active substance (R) in the liquid state and provided with an exit mouth ( 12 ) for the active substance (R), and a support means ( 20 ) for supporting said bottle ( 11 ) in an inverted position, with its mouth ( 12 ) facing downwards, in a position subjected to the action of the flushing water flow, characterized in that the support means ( 20 ) comprises: 
 a closed transition chamber ( 30 ) positioned below the exit mouth ( 12 ) to contain and retain, for at least part of its volume, the active substance;    for closing the mouth ( 12 ) of the bottle ( 11 ) a member ( 21 ) which connects the mouth to the transition chamber ( 30 ) via a sized hole through which the active substance descends;    said transition chamber ( 30 ) having an aperture ( 35 ) for the exit of the active substance from the chamber;    a substantially horizontal diffuser plate ( 25 ) positioned adjacent to said active substance exit aperture ( 35 );    said exit aperture ( 35 ) being sized in relation to the physical-chemical characteristics of the active substance such that this occupies and closes the aperture ( 35 ) and also halts the discharge of the substance from the bottle interior, it outflowing therefrom only through a relatively short distance, said diffuser plate ( 25 ) being disposed in a position relative to the W.C. bowl such that the flushing water washes said exit aperture ( 35 ).    
   
   
       2 . A dispenser as claimed in  claim 1 , characterised in that said transition chamber ( 30 ) comprises, in the top of the chamber  30 , in communication with atmospheric pressure, a sized hole ( 34 ) for ventilating the interior of the bottle ( 11 ).  
   
   
       3 . A dispenser as claimed in  claim 1 , characterised by comprising, external to the chamber ( 30 ), an upward projection ( 27 ) on the upper surface of the diffuser plate ( 25 ) to the front of and at a short distance from the exit aperture ( 35 ), to define a wall for halting the exit of the active substance from the aperture ( 35 ).  
   
   
       4 . A dispenser as claimed in  claim 1 , characterised in that said sized hole ( 33 ) for the descent of the active substance is provided in the top of the transition chamber ( 30 ).  
   
   
       5 . A dispenser as claimed in  claim 1 , characterised by comprising, external to the chamber ( 30 ), an upward projection ( 27 A) on the upper surface of the diffuser plate ( 25 ) to the front of the exit aperture ( 35 ), defining an enclosure wall bounding a closed field, for halting the exit of the active substance from the aperture ( 35 ).  
   
   
       6 . A dispenser as claimed in  claim 5 , characterised by comprising, a vertical slot ( 29 ) in the upward projection ( 27 A) particularly for draining the water which mixes with the active substance (R) inside said enclosure.