Toilet bowl assembly with air aspiration and filtration

Abstract

A toilet bowl assembly comprising a base fixed to a bowl, provided with a toilet seat and a device for aspirating air from the bowl. The base comprises an extension that has its upper part provided with a presence detection window directed to above the seat and forming an aspiration channel opening into the bowl. A circuit for controlling the function of the aspirating device with an infrared detector situated in the detection window to detect a presence on the seat and with an electric power supply for the circuit and the aspirating device.

1 . A toilet bowl assembly comprising a base fixed to a bowl, provided with a toilet seat and a device for aspirating air from the bowl, the underside of the seat being provided with a seal by which the seat is supported on the rim of the bowl, said seal being open to the front and to the rear to allow air to pass towards the aspirator through aspiration opening formed in the base, the aspirating device comprising a rotor driven by an electric motor to aspirate air and circulate it through a filter that discharges from the housing, characterized by
 a base comprising an extension that has its upper part provided with a presence detection window directed to above the seat and forming, beneath the detection window, an aspiration channel with the upper side of the rear of the bowl and opening into the bowl, and   a circuit for controlling the function of the aspirating device with an infrared detector situated in the detection window to detect a presence on the seat and with an electric power supply for the circuit and the aspirating device, said circuit managing the functioning of the aspirating device, its timing and the display of the functional state such as its availability, its orderly functioning and the supply condition as well as the necessity to recharge the supply.   
   
   
       2 . The toilet bowl assembly of  claim 1 , wherein
 the air aspiration channel is in the shape of a V open towards the bowl and its outlet towards the aspirating device is offset in the direction of circulation of the air aspirated by the rotor of the aspirating device, and   the seat is supported on the bowl by a seal formed by two symmetrical branches which at the rear ends extend to either side of the inlet of the aspiration channel, and, in prolongation by the sides of the same, abut against the front side of the extension on either side of the entry of aspiration channel.   
   
   
       3 . The toilet bowl assembly of  claim 2 , wherein
 one branch of the seal is formed by a support provided with projections to be clipped into clip openings provided in the underside of the seat in order to fix the support in a releasable manner, said support having a front end and a rear end of the seal section, and a soft material is molded on the support portion between the ends, forming the covering of the seal.   
   
   
       4 . The toilet bowl assembly of  claim 1 , wherein
 the base has a thickness at least equal to the height of the seal of the seat, and a front edge,   the seat is connected to the base by an articulation formed by two hinges whose axis is displaced on the upper side of the base beyond the front edge of the base,   when the seat rests on the bowl, the rear edge of the seat and the front edge of the base show practically no gap.   
   
   
       5 . The toilet bowl assembly of  claim 4 , wherein
 two passages extend through the base on either side of the extension and terminate in the underside,   each hinge has a fastening bracket of a section and position corresponding to one of said passages and being provided with a threaded opening to engage into said passage and to be blocked there by a screw passing into the passage from the lower face of the base.   
   
   
       6 . The toilet bowl assembly of  claim 4 , wherein the rear end of each branch of the seat seal is truncated at the rear edge of the seat so as to abut against the front edge of the base on either side of the inlet of the aspiration channel. 
   
   
       7 . The toilet bowl assembly of  claim 1 , wherein it comprises a lid articulated on each hinge of the seat and having a rear edge provided with a cutout facing the base in order to ride over the extension of the base when the lid is lifted. 
   
   
       8 . The toilet bowl assembly of  claim 1 , wherein the underside of the base is formed by a plate at the rear end of the bowl and provided with mounting slots adjustable from the base, the plate being covered by a soft coating that forms a seal. 
   
   
       9 . The toilet bowl assembly of  claim 1 , wherein
 the housing ( 4 ) is divided into compartments and comprises
 in the middle, a compartment forming a passage for air flowing therethrough from the bottom to the top, the compartment being situated above the end of the aspiration channel occupied by the rotor of the aspirating device, 
 a removable filter being mounted above said compartment, said filter being formed by a rigid casing containing a filtering mass, 
 wherein said compartment is bordered on either side by a compartment, at least one of which accommodates a battery supplying the aspirating device and the control circuit, 
 a cover ( 8 ) covering the compartments while separating them in a relatively tight manner, said cover being perforated in the zone above the outlet of the filter. 
   
   
   
       10 . The toilet bowl assembly of  claim 9 , wherein
 the housing has a circumferential wall provided with a beading, and   the cover has a transversely bulged upper side, descending from the centre occupied by its perforated part, and a circumferential wall descending to join the beading of the housing.   
   
   
       11 . The toilet bowl assembly of  claim 9 , wherein the cover is provided with a cap covering the perforated part while leaving a gap with respect to the top of the cover so as to form a circumferential air outlet slot. 
   
   
       12 . The toilet bowl assembly of  claim 4 , wherein
 the connection between the edge of the upper side of the cover and its circumferential wall, and   the connection between the housing and the base are established by transition surfaces with a large radius of curvature.   
   
   
       13 . The toilet bowl assembly of  claim 1 , wherein the detection window is provided with an infrared detector.