Urinal cartridge with improved performance

Abstract

A cartridge for placement in a urinal includes a chamber having an entry for receiving wastewater (e.g., urine), a quantity of sealant floatable on the wastewater in the chamber for functioning as a barrier to odors that may otherwise emanate from the wastewater in the chamber, a sealant reservoir coupled to the chamber for containing a supply of the sealant, and a closed path sealant dispenser for dispensing the sealant from the sealant reservoir to the chamber for maintaining the sealant modicum atop the wastewater. The sealant dispenser includes a cap having a U-shaped channel, and opening, and an orifice entering into a throat in which the sealant floats. An air vent avoids the buildup of suction in the primary reservoir. A secondary reservoir may be coupled to the sealant reservoir primarily for retaining additional sealant, in addition to any wastewater that might accompany the sealant for conserving sealant, and is particularly useful to avoid the deleterious effects of water being dumped into cartridge, particularly, sealant that is flushed out and into drain through the outlet-to-drain compartment, which flushing has a minimal effect on the sealant in the secondary reservoir. If desired, a water reservoir may be housed within the cartridge.

1 . A cartridge for placement in a urinal comprising: 
 a chamber having an opening for receiving wastewater;    a quantity of sealant floatable on the wastewater in said chamber functioning as a barrier to odors from the wastewater in said chamber;    a reservoir coupled to said chamber containing a supply of the sealant; and    a dispenser for dispensing the sealant from said reservoir to said chamber for maintaining the quantity of the sealant floating on the wastewater.    
   
   
       2 . The cartridge according to  claim 1 , further comprising a wastewater outlet-to-drain compartment coupled to said opening, wherein said wastewater outlet-to-drain compartment is sufficiently large as to prevent siphoning of liquid within the cartridge should a negative pressure differential exist across a cartridge trap or should there be any excessive amount of fluid dumped into the cartridge.  
   
   
       3 . The cartridge according to  claim 1 , further comprising: 
 a secondary chamber coupled to said sealant reservoir;    an entry having an access to said chamber, having an opening for receiving wastewater, for insertion of fluids therein and at least one vent adjacent to said opening;    a sealant protection recovery channel having openings coupled between said entry and said secondary chamber; and    an antisiphoning aid positioned adjacent to the at least one vent at one of the openings of said sealant protection recovery channel, said aid minimizing the loss of sealant that may occur when excessive fluid is dumped into said chamber.    
   
   
       4 . The cartridge according to  claim 1 , further comprising an intermediate portion, top and bottom portions fittable respectively on opposed ends of said intermediate portion, and a divider positioned adjacent to and secured to said top portion for defining said reservoir.  
   
   
       5 . The cartridge according to  claim 4 , wherein: 
 said top portion includes an opening for receiving and directing the wastewater into said chamber; and    said sealant dispenser includes a passageway for conducting the sealant from said reservoir into said chamber, and a flow-limiting orifice positioned between said passageway and said reservoir for metering the amount of sealant to be supplied from said reservoir to said chamber and for supplying additional sealant for any sealant lost from said chamber.    
   
   
       6 . The cartridge according to  claim 5 , further comprising a sealant reservoir release seal for sealing said sealant passageway from said chamber, and a sealant reservoir release seal removal device secured to said sealant reservoir seal for enabling removal of said sealant reservoir seal.  
   
   
       7 . The cartridge according to  claim 6 , wherein said seal removal device extends through said opening for enabling said device to be grasped by an operator for removal of said sealant reservoir seal.  
   
   
       8 . The cartridge according to  claim 5 , wherein an entry opening opens into said chamber and further comprising a secondary chamber, an orifice between said entry having an access to said chamber and said secondary chamber whereby said secondary chamber collects excess of the sealant and supplies additional sealant atop the wastewater in said entry for maintaining a desired amount of sealant.  
   
   
       9 . The cartridge according to  claim 1 , wherein: 
 said chamber includes an inlet through which said wastewater passes into said chamber, said inlet establishes a fluid level defining a position of where said wastewater with sealant floating thereon exists; and    said dispenser comprises an orifice, a filter and a flow path exiting above said wastewater and said fluid level for providing a source of the sealant.    
   
   
       10 . The cartridge according to  claim 9 , wherein said inlet has a diameter which is small with respect to said chamber as to enable said chamber to limit the escape of wastewater vapor.  
   
   
       11 . The cartridge according to  claim 1 , further comprising: 
 an intermediate portion and top and bottom portions fittable respectively on opposed ends of said intermediate portion, wherein said intermediate and bottom portions form said wastewater-receiving chamber and said bottom portion forms an undersurface for said wastewater-receiving chamber;    a wastewater outlet chamber coupled to said wastewater-receiving chamber;    a first baffle disposed in said wastewater-receiving chamber for separation thereof into a primary section coupled to said chamber opening and an exit section coupled to said wastewater outlet chamber, wherein said first baffle is sloped away from said wastewater outlet chamber for directing the wastewater and any sealant therein in a direction away from said exit section and said outlet chamber for enabling the conservation of the sealant; and    a second baffle disposed between said exit section and said wastewater outlet chamber for conveyance of the wastewater to an external drain.    
   
   
       12 . The cartridge according to  claim 11 , wherein said second baffle has a rounded end to militate against hair and other debris from sticking thereto.  
   
   
       13 . The cartridge according to  claim 1 , further comprising: 
 an intermediate portion and top and bottom portions fittable respectively on opposed ends of said intermediate portion, wherein said intermediate and bottom portions form said wastewater-receiving chamber and said bottom portion forms an undersurface for said wastewater-receiving chamber;    a wastewater outlet chamber coupled to said wastewater-receiving chamber; and    a baffle disposed between said exit section and said wastewater outlet chamber for conveyance of the wastewater to an external drain.    
   
   
       14 . The cartridge according to  claim 13 , wherein said baffle has a rounded end to militate against hair and other debris from sticking thereto.  
   
   
       15 . The cartridge according to  claim 14 , wherein: 
 said wastewater outlet chamber comprises an enclosure enclosed by walls; and    said baffle is secured to said walls and is provided with a terminal overhang that extends into said wastewater outlet chamber to provide a waterfall effect that directs the wastewater generally away from said walls.    
   
   
       16 . The cartridge according to  claim 15 , wherein said terminal overhang slopes downwardly from said walls to direct the wastewater away from said walls.  
   
   
       17 . The cartridge according to  claim 16 , wherein said terminal overhang slopes inwardly from said walls further to direct the wastewater away from said walls.  
   
   
       18 . The cartridge according to  claim 13 , further comprising a compartment containing post-treatment chemicals for treating wastewater exiting from said wastewater outlet chamber.  
   
   
       19 . A cartridge ( 50 ) for placement in a urinal comprising: 
 (A-1) top ( 52 ), intermediate ( 54 ) and bottom ( 56 ) portions;    (B-1) a compartment ( 58 ) containing wastewater treatment tablets ( 60 ), and having an opening ( 62 ) for receipt of wastewater ( 64 ) and an outlet ( 66 ) couplable to an external drain;    (C-1) said intermediate portion ( 54 ) comprising a platform ( 68 ) having upper ( 70 ) and lower ( 72 ) surfaces with openings ( 76 ,  74 ) therethrough, and upper ( 78 ) and lower ( 80 ) parts joined respectively to said upper ( 70 ) and lower ( 72 ) surfaces, 
 (C-1a) said upper part ( 78 ) including an upstanding enclosure ( 82 ),  
 (C-1b) said intermediate portion lower part ( 80 ) including a compartmentalizing wall structure, in which 
 (C-1b-I) a plurality of wall segments ( 84 ,  85 ,  86 ,  88 ) divide said compartmentalizing wall structure into a wastewater-receiving compartment ( 96 ), and a wastewater outlet-to-drain compartment ( 98 ),  
 (C-1b-II) a first weir ( 90 ) divides said wastewater-receiving compartment ( 96 ) into a (primary) wastewater inlet chamber ( 106 ) and a wastewater inlet-to-outlet chamber ( 108 ) and forms a separation therebetween, wherein said first weir ( 90 ) slopes downwardly to a terminal end ( 110 ) in said (primary) wastewater inlet chamber ( 106 ) and away from said wastewater inlet-to-outlet chamber ( 108 ) for directing the wastewater ( 64 ) away from said wastewater inlet-to-outlet chamber,  
 (C-1b-III) a second weir ( 92 ) is secured to and between a parallel pair ( 86   a,    88   a ) of said wall segments ( 86 ,  88 ) and forms another one of said wall segments between said wastewater inlet-to-outlet chamber ( 108 ) and said wastewater outlet-to-drain compartment ( 98 ), 
 (C-1b-IIIa) wherein said second weir ( 92 ) has an inwardly sloped ridged and hook-shaped rounded end ( 112 ) which is sloped downwardly from said parallel pair ( 86   a,    86   b ) of said wall segments ( 86 ,  88 ) and which extends into said wastewater outlet-to-drain compartment ( 98 ) for providing a terminal overhang ( 90 ) that effects a waterfall-like effect whereby the wastewater is directed generally away from said parallel pair ( 86   a,    86   b ) of said wall segments ( 86 ,  88 ) and said second weir ( 92 ) (as defining said wastewater outlet-to-drain compartment ( 98 )), thus further militating against the adherence of hair and other debris to said hook-shaped rounded end ( 112 ),  
 
 
 (C-1c) wherein said (primary) wastewater inlet chamber ( 106 ) communicates with a first ( 74 ) of said upper and lower surface openings, and both said wastewater inlet-to-outlet chamber ( 108 ) and said wastewater outlet-to-drain compartment ( 98 ) communicates with a second ( 76 ) of said upper and lower surface openings, 
 (C-1c-I) a seat ( 114 ) positioned on said intermediate portion platform lower surface ( 72 ) adjacent said compartmentalizing wall structure for enabling the seating and attachment of said treatment tablet compartment ( 58 ) to said intermediate portion platform ( 68 ), and  
 (C-1c-II) a passageway ( 116 ) positioned in said intermediate portion platform ( 68 ) at a height above said second weir hook-shaped rounded end ( 112 ) for coupling said wastewater inlet-to-outlet chamber ( 108 ) to said seat ( 114 ) and to said treatment tablet compartment ( 58 ) for supply of some of the wastewater ( 64 ) to said treatment tablets ( 60 );  
 
   (D-1) said top portion ( 52 ) secured to said intermediate portion ( 54 ) and having upper ( 118 ) and lower ( 120 ) surfaces with openings ( 122 ,  124 ) therethrough, in which 
 (D-1a) a first ( 122 ) of said openings comprises a wastewater opening for passage of the wastewater into said (primary) wastewater inlet chamber ( 106 ) of said intermediate portion wastewater-receiving compartment ( 96 ),  
 (D-1b) a second ( 124 ) of said openings comprises a plurality of air vent openings and passageways ( 130 ) extending downwardly from said top portion lower surface and being spaced from said wastewater opening ( 122 ), and  
 (D-1c) an air vent-assisting guiding structure ( 132 ) and a tubular extension ( 916 ) positioned adjacent to said wastewater entry opening and extending downwardly from said top portion lower surface ( 120 );  
   (E-1) a chamber divider ( 140 ) including a platform ( 142 ) having upper ( 144 ) and lower ( 146 ) surfaces, and upper and lower parts joined respectively to said upper and lower surfaces, and further including 
 (E-1a) a wastewater entry passageway ( 152 ) which comprises (1) a first part ( 154 ) extending upwardly from said upper surface ( 144 ) of said chamber divider into sealing securement to said lower surface ( 120 ) of said top portion, (2) a second part extending downwardly and flaring out from said lower surface ( 146 ) of said chamber divider into said intermediate portion (primary) wastewater inlet chamber ( 106 ), and (3) a narrowed throat ( 158 ) whose location is defined substantially at where it is attached to said chamber divider platform ( 142 ), which narrowed throat normally functions as the wastewater surface site,  
 (E-1b) said wastewater entry passageway ( 152 ) further including first ( 160 ) and second ( 162 ) normally placed orifices adjacent said chamber divider platform ( 142 ) surfaces and in said narrowed throat ( 158 ),  
 (E-1c) a first cover portion ( 164 ) which is configured as a dome which covers both said wastewater inlet-to-outlet chamber ( 108 ) and said wastewater outlet-to-drain compartment ( 98 ) and which is sealed to said second ( 76 ) of said upper and lower surface openings, and  
 (E-1d) a second cover portion ( 166 ) which covers said (primary) wastewater inlet chamber ( 106 ) and has openings. ( 168 ,  170 ) therein, wherein (1) a first ( 168 ) of said second cover portion openings communicates with said first ( 74 ) of said intermediate portion upper and lower surface openings, and (2) a second ( 170 ) of said second cover portion openings forms a sealant flow limiting orifice ( 172 ) and a seat ( 174 ) for a sealant filter pad ( 176 ), and said second cover portion includes a vent tube ( 178 ) extending upwardly therefrom and from said first ( 168 ) of said second cover portion openings, said vent tube ( 178 ) and said second ( 170 ) of said second cover portion openings sealingly interfit with said air vent-assisting guiding structure ( 132 ) and said tubular extension ( 916 ) of said top portion to form a vent tube-opening path,  
 (E-1e) whereby, a generally donut-shaped sealant reservoir ( 190 ) sealable by a seal ( 232 ) is formed when said chamber divider ( 140 ) is secured to said top portion ( 52 ) and to said intermediate portion ( 54 ), said platform upper surface ( 70 ) thereof, said circumscribing intermediate portion upper part upstanding enclosure ( 82 ), and said wastewater entry passageway first part ( 154 ) of said chamber divider ( 140 ),  
 (E-1f) a cap ( 180 ) on said lower surface ( 146 ) of said chamber divider ( 140 ) covering said first openings ( 168 ,  170 ) in said second cover portion ( 166 ) for forming a conduit from said divider first openings ( 168 ,  170 ) to said first wastewater entry passageway orifice ( 160 ) whereby, because of said vent tube-opening path, pressure is equalized between said throat ( 158 ) and said air vent-assisting guiding structure ( 132 ) to permit air to pass from said throat through said air vent-assisting guiding structure so as not to unduly impede flow of the sealant from said sealant reservoir ( 190 ) into said throat,  
   (F-1) said bottom portion ( 56 ) comprising 
 (F-1a) a cap part ( 196 ) secured to and forming a fluid-tight closure both with said intermediate portion ( 54 ) at an end ( 83   b ) thereof opposite to where ( 83   a ) said top portion is secured thereto and to said second weir ( 92 ), and  
 (F-1b) an extension part ( 198 ) secured to said wastewater outlet-to-drain compartment ( 98 ) for coupling to the external drain;  
   (G-1) a secondary chamber ( 220 ) which is positioned adjacent to said (primary) wastewater inlet chamber ( 106 ) and communicates therewith through said wastewater entry passageway ( 152 ) whereby, when sealant ( 238 ) is supplied from said sealant reservoir ( 190 ) through said first wastewater entry passageway ( 160 ) into said narrowed throat ( 158 ) of said wastewater entry passageway, both a modicum ( 242 ) of the sealant is caused to float on the surface of any fluid (such as water and wastewater) in said primary chamber ( 106 ) for functioning as a barrier to odors that may otherwise emanate from the wastewater in said chamber and a further provision of the sealant is caused to flow into said secondary chamber ( 220 ) through said second wastewater entry passageway ( 162 ), whereupon, should said modicum of the sealant be lost by passage into said wastewater outlet-to-drain compartment ( 98 ), the further sealant in said secondary chamber refurnishes the lost sealant modicum, thereby limiting excessive loss of the sealant;    (H-1) a plurality of air vent passageways ( 192 ), equal in number to said top portion air vent openings and passageways ( 130 ), extending upwardly from said chamber divider platform ( 142 ) and coupled to said top portion passageways ( 130 ) for providing air vents from said secondary chamber ( 220 ) to said top portion air vent openings ( 124 ) and the exterior thereof; and    (I-1) a pull tape ( 234 ) secured to said sealant reservoir seal ( 232 ) and extending out of said top portion entry ( 122 ) for manipulation by an operator for removal of said seal when said cartridge is readied for use in the urinal.    
   
   
       20 . The cartridge according to  claim 19 , wherein said outlet-to-drain compartment is sufficiently large so as to militate against any siphoning of the wastewater and the sealant from said primary chamber.  
   
   
       21 . A cartridge ( 50 ) for placement in a urinal comprising: 
 (A-1) top ( 52 ), intermediate ( 54 ) and bottom ( 56 ) portions;    (B-1) a compartment ( 58 ) containing wastewater treatment tablets ( 60 ), and having an entry ( 62 ) for receipt of wastewater ( 64 ) and an outlet ( 66 ) couplable to an external drain;    (C-1) said intermediate portion ( 54 ) comprising a platform ( 68 ) having upper ( 70 ) and lower ( 72 ) surfaces with openings ( 76 ,  74 ) therethrough, and upper ( 78 ) and lower ( 80 ) parts joined respectively to said upper ( 70 ) and lower ( 72 ) surfaces, 
 (C-1a) said upper part ( 78 ) including an upstanding enclosure ( 82 ),  
 (C-1b) said intermediate portion lower part ( 80 ) including a compartmentalizing wall structure, in which 
 (C-1b-I) a plurality of wall segments ( 84 ,  85 ,  86 ,  88 ) divide said compartmentalizing wall structure into a wastewater-receiving compartment ( 96 ), and a wastewater outlet-to-drain compartment ( 98 ),  
 (C-1b-II) a first weir ( 90 ) divides said wastewater-receiving compartment ( 96 ) into a (primary) wastewater inlet chamber ( 106 ) and a wastewater inlet-to-outlet chamber ( 108 ) and forms a separation therebetween, wherein said first weir ( 90 ) slopes downwardly to a terminal end ( 110 ) in said (primary) wastewater inlet chamber ( 106 ) and away from said wastewater inlet-to-outlet chamber ( 108 ) for directing the wastewater ( 64 ) away from said wastewater inlet-to-outlet chamber,  
 (C-1b-III) a second weir ( 92 ) is secured to and between a parallel pair ( 86   a,    88   a ) of said wall segments ( 86 ,  88 ) and forms another one of said wall segments between said wastewater inlet-to-outlet chamber ( 108 ) and said wastewater outlet-to-drain compartment ( 98 ), 
 (C-1b-IIIa) wherein said second weir ( 92 ) has an inwardly sloped ridged and hook-shaped rounded end ( 112 ) which is sloped downwardly from said parallel pair ( 86   a,    86   b ) of said wall segments ( 86 ,  88 ) and which extends into said wastewater outlet-to-drain compartment ( 98 ) for providing a terminal overhang ( 90 ) that effects a waterfall-like effect whereby the wastewater is directed generally away from said parallel pair ( 86   a,    86   b ) of said wall segments ( 86 ,  88 ) and said second weir ( 92 ) (as defining said wastewater outlet-to-drain compartment ( 98 )), thus further militating against the adherence of hair and other debris to said hook-shaped rounded end ( 112 ),  
 
 
 (C-1c) wherein said (primary) wastewater inlet chamber ( 106 ) communicates with a first ( 74 ) of said upper and lower surface openings, and both said wastewater inlet-to-outlet chamber ( 108 ) and said wastewater outlet-to-drain compartment ( 98 ) communicates with a second ( 76 ) of said upper and lower surface openings, 
 (C-1c-I) a seat ( 114 ) positioned on said intermediate portion platform lower surface ( 72 ) adjacent said compartmentalizing wall structure for enabling the seating and attachment of said treatment tablet compartment ( 58 ) to said intermediate portion platform ( 68 ), and  
 (C-1c-II) a passageway ( 116 ) positioned in said intermediate portion platform ( 68 ) at a height above said second weir hook-shaped rounded end ( 112 ) for coupling said wastewater inlet-to-outlet chamber ( 108 ) to said seat ( 114 ) and to said treatment tablet compartment ( 58 ) for supply of some of the wastewater ( 64 ) to said treatment tablets ( 60 );  
 
   (D-1) said top portion ( 52 ) secured to said intermediate portion ( 54 ) and having upper ( 118 ) and lower ( 120 ) surfaces with openings ( 122 ,  124 ) therethrough, in which 
 (D-1a) a first ( 122 ) of said openings comprises a wastewater entry for passage of the wastewater into said (primary) wastewater inlet chamber ( 106 ) of said intermediate portion wastewater-receiving compartment ( 96 ),  
 (D-1b) a second ( 124 ) of said openings comprises a plurality of air vent openings and passageways ( 130 ) extending downwardly from said top portion lower surface and being spaced from said wastewater entry opening ( 122 ), and  
 (D-1c) an air vent-assisting guiding structure ( 132 ) and a tubular extension ( 916 ) positioned adjacent to said wastewater entry opening and extending downwardly from said top portion lower surface ( 120 );  
   (E-1) a chamber divider ( 140 ) including a platform ( 142 ) having upper ( 144 ) and lower ( 146 ) surfaces, and upper and lower parts joined respectively to said upper and lower surfaces, and further including 
 (E-1a) a wastewater entry passageway ( 152 ) which comprises (1) a first part ( 154 ) extending upwardly from said upper surface ( 144 ) of said chamber divider into sealing securement to said lower surface ( 120 ) of said top portion, (2) a second part extending downwardly and flaring out from said lower surface ( 146 ) of said chamber divider into said intermediate portion (primary) wastewater inlet chamber ( 106 ), and (3) a narrowed throat ( 158 ) whose location is defined substantially at where it is attached to said chamber divider platform ( 142 ), which narrowed throat normally functions as the wastewater surface site,  
 (E-1b) said wastewater entry passageway ( 152 ) further including an orifice ( 160 ) adjacent said chamber divider platform ( 142 ) surfaces and in said narrowed throat ( 158 ),  
 (E-1c) a first cover portion ( 164 ) which is configured as a dome which covers both said wastewater inlet-to-outlet chamber ( 108 ) and said wastewater outlet-to-drain compartment ( 98 ) and which is sealed to said second ( 76 ) of said upper and lower surface openings, and  
 (E-1d) a second cover portion ( 166 ) which covers said (primary) wastewater inlet chamber ( 106 ) and has openings ( 168 ,  170 ) therein, wherein (1) a first ( 168 ) of said second cover portion openings communicates with said first ( 74 ) of said intermediate portion upper and lower surface openings, and (2) a second ( 170 ) of said second cover portion openings forms a sealant flow limiting orifice ( 172 ) and a seat ( 174 ) for a sealant filter pad ( 176 ), and said second cover portion includes a vent tube ( 178 ) extending upwardly therefrom and from said first ( 168 ) of said second cover portion openings, said vent tube ( 178 ) and said second ( 170 ) of said second cover portion openings interfit with said air vent-assisting guiding structure ( 132 ) and said tubular extension ( 916 ) of said top portion to form a vent tube-opening path,  
 (E-1e) whereby, a generally donut-shaped sealant reservoir ( 190 ) sealable by a seal ( 232 ) is formed when said chamber divider ( 140 ) is secured to said top portion ( 52 ) and to said intermediate portion ( 54 ), said platform upper surface ( 70 ) thereof, said circumscribing intermediate portion upper part upstanding enclosure ( 82 ), and said wastewater entry passageway first part ( 154 ) of said chamber divider ( 140 ),  
 (E-1f) a cap ( 180 ) on said lower surface ( 146 ) of said chamber divider ( 140 ) covering said first openings ( 168 ,  170 ) in said second cover portion ( 166 ) for forming a conduit from said divider first openings ( 168 ,  170 ) to said first wastewater entry passageway orifice ( 160 ) whereby, because of said vent tube-opening path, pressure is equalized between said throat ( 158 ) and said air vent-assisting guiding structure ( 132 ) to permit air to pass from said throat through said air vent-assisting guiding structure so as not to unduly impede flow of the sealant from said sealant reservoir ( 190 ) into said throat,  
   (F-1) said bottom portion ( 56 ) comprising 
 (F-1a) a cap part ( 196 ) secured to and forming a fluid-tight closure both with said intermediate portion ( 54 ) at an end ( 83   b ) thereof opposite to where ( 83   a ) said top portion is secured thereto and to said second weir ( 92 ), and  
 (F-1b) an extension part ( 198 ) secured to said wastewater outlet-to-drain compartment ( 98 ) for coupling to the external drain;  
   (G-1) a pull tape ( 234 ) secured to said sealant reservoir seal ( 232 ) and extending out of said top portion entry ( 122 ) for manipulation by an operator for removal of said seal when said cartridge is readied for use in the urinal.    
   
   
       22 . A cartridge for placement in a urinal comprising: 
 a chamber having an opening for receiving wastewater;    sealant operable to float on the wastewater in said chamber for functioning as a barrier to odors from the wastewater in said chamber; and    a reservoir having a coupling to said chamber for establishing a sealant communication path therebetween.    
   
   
       23 . The cartridge according to  claim 22 , wherein said chamber includes a throat at its ingress, the breadth of the throat is narrower than that of said chamber to provide a minimum area for the sealant residing therein.  
   
   
       24 . The cartridge according to  claim 23 , wherein said coupling has an orifice in said throat for defining an end to said communication path.  
   
   
       25 . The cartridge according to  claim 24 , wherein said reservoir, further comprising a source for supplying the sealant within said throat when the sealant therein is diminished.  
   
   
       26 . The cartridge according to  claim 22 , wherein said reservoir is capable of receiving sealant obtained from said chamber, and of redispensing and resupplying the sealant into said chamber.  
   
   
       27 . The cartridge according to  claim 22 , wherein said reservoir further comprises a supply of the sealant for operating as a primary sealant dispensing source, and a secondary reservoir for receiving the sealant as overflow from said primary reservoir.  
   
   
       28 . The cartridge according to  claim 27 , further comprising a water reservoir for dispensing water into said cartridge.  
   
   
       29 . The cartridge according to  claim 22 , further comprising a water reservoir for dispensing water into said cartridge.  
   
   
       30 . A cartridge for placement in a urinal including: 
 a chamber having an entry for receiving wastewater;    a quantity of sealant floatable on the wastewater in said chamber, for containing a supply of water for supply thereof to said chamber; and    a closure, having a blocked position for preventing the supply of the water to said chamber and an open position for permitting the supply of water.    
   
   
       31 . The cartridge according to  claim 3 , wherein said antisiphoning aid comprises at least one fin.  
   
   
       32 . The cartridge according to  claim 1 , wherein 
 said dispenser includes a passageway for conducting the sealant from said reservoir into said chamber, and a flow-limiting orifice positioned between said passageway and said reservoir to said chamber and for supplying additional sealant for any sealant lost from said chamber.