Abstract: An automatic dispensing device for volatile fluid operable to apply one or more agent to a local environment for more than 14 days. Preferred devices dispense a first agent for air freshening, and may optionally dispense a second agent, such as a drain cleaner. A workable drain cleaner is structured to permit a slow release of drain cleaning agent. A dispensing device may nonexclusively operate by evaporation of volatile fluid from a carrier material that is infused with the volatile fluid; gravity-induced drip from a bulk supply of volatile fluid through a small orifice onto an emanator; osmotic transfer of volatile fluid from a bulk supply; gas-pump drive of volatile fluid at controlled pressure; or diffusion of volatile fluid through a wall of a container of bulk volatile fluid; and combinations thereof.

Abstract: An automatic dispensing device for volatile fluid operable to apply one or more agent to a local environment for more than 14 days. Preferred devices dispense a first agent for air freshening, and may optionally dispense a second agent, such as a drain cleaner. A workable drain cleaner is structured to permit a slow release of drain cleaning agent. A dispensing device may nonexclusively operate by evaporation of volatile fluid from a polymer or rubber-like carrier material that is infused with the volatile fluid; gravity-induced drip from a bulk supply of volatile fluid through a small orifice onto an emanator; osmotic transfer of volatile fluid from a bulk supply; gas-pump drive of volatile fluid at controlled pressure; or diffusion of volatile fluid through a wall of a container of bulk volatile fluid; and combinations thereof.

Abstract: A urinal capable of constraining the occurrence of uric scale in a discharge horizontal branch pipe even if flush water volume has been reduced by water conservation is disclosed. A urinal includes a control unit with a main flush mode M0; a first equipment flushing mode M1 in which a portion of flush water flushes the upstream side of a connecting portion; and a second equipment flushing mode M2 in which a portion of flush water flushes the upstream side of the connecting portion. At least one of either the first mode M1 or the second mode M2, the value of the discharge volume or the discharge instantaneous flow volume discharged is set to be equal to or greater than the value of the discharge volume or the discharge instantaneous flow volume in the main flush mode.

Abstract: A urinal with a sanitation device capable of preventing the generation of a smell and urine scale with reliability without reducing a water conservation effect. In the urinal US, a liquid agent is ejected in different modes by predetermined timing according to areas on the urinal US.

Abstract: A mat or other object for attenuating reflective spray during use of a urinal comprises a urine impingement region that includes a plurality of upstanding, flexible bristles.

Abstract: A handheld urinal designed to reduce splash and water consumption. In one embodiment, the handheld urinal is integrated into the plumbing of a new toilet through a separate, small, water trap and fitting built into the side of the toilet. In another embodiment, the handheld urinal is retro-fitted to an existing toilet through various clamping means. Both embodiments use a rinsing wand in order to keep the invention clean and odor-free.

Abstract: A urinal with a sanitation device capable of preventing the generation of a smell and urine scale with reliability without reducing a water conservation effect. In the urinal US, a liquid agent is ejected in different modes by predetermined timing according to areas on the urinal US.

Abstract: The invention relates to an insert (3) that can be inserted into a drainage opening (2) of a urinal (1) and that can be designed, for example, as an odor seal. The insert (3) has at least one outlet opening (4) through which a liquid (5), in particular a cleaning and/or disinfecting liquid, is released, in particular injected or sprayed, onto a bowl surface (6) of a urinal (1), in the discharge opening of which the insert (3) is inserted.

Abstract: In a urine cartridge or wastewater trap, equalized pressures and increased flow rate between its inlet and outlet compartments increases the life of the cartridge. The pressure equalizing is effected by placement of a separator between the two compartments to provide them with substantially equal volumes. The increased flow rate is created by a uniquely configured baffle positioned adjacent a pan at the bottom of the cartridge. The baffle configuration is shaped to provide a constriction that increases the flow velocity of the urine so that the fluid flow effects a channel along the bottom pan and through any solids deposited on the bottom pan. A diverter may be placed above the centrally located entry to the inlet compartment to create a circuitous path for preventing a disturbing impingement of the urine onto the sealant contained in the inlet compartment.

Abstract: A urinal screen assembly is provided. The urinal screen assembly includes a base having opposing major surfaces, a plurality of apertures extending therebetween and a rim. The base is configured to seat in a contoured orientation against contours on a surface of a urinal bowl. The base includes one or more deodorizing and cleaning agents. A retention structure extends from one of the major surfaces of the base. A block is positioned within the retention structure. The block includes one or more deodorizing and cleaning agents configured to deodorize and clean the urinal bowl. The deodorizing and cleaning agents in the base and the deodorizing and cleaning agents in the block are configured to combine to form a deodorizing and cleaning zone that extends radially beyond the edges of the block.

Abstract: A urinal block for use in a conventional water-based urinal where the water has been shut off, the block includes a first block portion that makes up about forty percent to sixty percent of the urinal block and has a first portion composition substantially similar to a conventional, non-paradichlorobenzene block used in water-based urinals for deodorizing during each flush, a second block portion that makes up about forty to sixty percent of the urinal block and has a second portion composition of a blended mixture of a non-paradichlorobenzene block portion, an odor counteractant gel, and a bacterial culture gel, and a liquid-pervious and liquid-insoluble layer covering at least the second block portion.

Abstract: A waterless urinal has a fixture including a backsplash and side walls joining a bowl at the bottom. Mounted on the top of the fixture is a fluid reservoir, a valve and a controller. The controller periodically opens the valve to release a quantity of a cleansing sealant from the reservoir onto the non-wetted surfaces of the fixture. The cleansing sealant cleans the non-wetted surfaces and then flows into the bowl where it collects to replenish the trap seal.

Abstract: A self-cleansing portable urine collection device and method of collecting urine in a self-cleansing portable urine collection device. The collection device includes a housing that houses a urine collection receptacle, a cleansing container, a reservoir, and a vacuum suction pump. The receptacle is movable between a stored position and a use position in which the receptacle is configured to collect urine from a user. The cleansing container is configured to supply a cleansing solution to the receptacle. The reservoir is configured to receive the urine and the cleansing solution collected by the receptacle. A vacuum suction pump is disposed within the housing downstream of the reservoir and is configured to transport the urine and the cleansing solution from the receptacle to the reservoir.

Abstract: An object is to provide a urinal which prevents offensive odors, reduces the consumption of urinal cleaning water and prevents clogging of the urinal drain pipe line. The urinal of the present invention includes a human body sensor (7), a control unit (11), a mechanism to generate a gas with high detergency (14), a gas flow line (La) in which generated gas with high detergency flows, and a cleaning water supply line (Lw) in which cleaning water flows, and the gas flow line (La) and the cleaning water supply line (Lw) converge to mix the gas with high detergency with the cleaning water, and a cleaning fluid line (Lc) formed by confluence of the gas flow line (La) and the cleaning water supply line (Lc) is communicated with a cleaning fluid ejection hole (5) on a urinal upper edge (1a).

Abstract: Disclosed herein is an apparatus for advertising a product or service and for sanitizing, deodorizing, and preventing splatter of fluids discharged in a urinal. The apparatus comprises a fluid permeable receptacle herein referred to as “receptacle” suspended along its longitudinal axis for absorbing discharged fluids and releasing the absorbed fluids into a drain of the urinal, an advertisement layer, and fasteners for fastening the receptacle to the urinal. The receptacle comprises particulate material embedded within compartments of the receptacle. The particulate material comprises an anti-splatter material for preventing splatter of fluids, an odor removal material for removing undesired odor from the fluids, and a sanitizing material for cleaning and disinfecting the fluids. Grommets along with the fasteners may be used for fastening the receptacle to the urinal. Advertisements may be printed on the surface of the receptacle or the advertisement layer.

Abstract: The present invention discloses a conductive sensor and a urinal having conductive sensor. Said conductive sensor is installed in the sewer pipe of the urinal or toilet, which comprises an insulating body and a detecting electrode used for detecting the electric conductivity of the liquid in the sewer pipe. Said conductive sensor also comprises a self-cleaning device used for cleaning the end of the detecting electrode. Said self-cleaning device comprises a housing, a piston unit and a brush head unit. A water inlet pipe connected with the tap water pipe and a water outlet pipe connected with the sewer pipe are installed to said housing. Said brush head unit comprises a brush head used for cleaning the end of the detecting electrode. Thus, the detected result of conductive sensor and the urinal having conductive sensor are more reliable and the device is easy to be maintained.

Abstract: A urinal deodorizer set includes a support frame member, which has an upright board, a sloping flow guide board disposed at the top side of the upright board, and first diversion boards perpendicularly extended from the upright board and the sloping flow guide board, a holder frame member, which has an outer upright board, an arched bottom board, two sideboards, and second diversion boards perpendicularly extended from the outer upright boards and respectively abutted against the first diversion boards and defining with the first diversion boards an accommodation space, a deodorizer block accommodated in the accommodation space, and an anchoring member provided at the support frame member for securing the urinal deodorizer set to the vertical wall of a urinal to let flushing water run through the urinal deodorizer in mixing with the deodorizer block to achieve effective cleaning of the vertical and bottom walls of the urinal.

Abstract: A urinal block for use in a conventional water-based urinal where the water has been shut off, the block includes a first block portion that makes up about forty percent to sixty percent of the urinal block and has a first portion composition substantially similar to a conventional, non-paradichlorobenzene block used in water-based urinals for deodorizing during each flush, a second block portion that makes up about forty to sixty percent of the urinal block and has a second portion composition of a blended mixture of a non-paradichlorobenzene block portion, an odor counteractant gel, and a bacterial culture gel, and a liquid-pervious and liquid-insoluble layer covering at least the second block portion.

Abstract: A system for conserving water in a conventional water-based urinal where the water has been shut off, the block includes a first block portion that makes up about forty percent to sixty percent of the urinal block and has a first portion composition substantially similar to a conventional, non-paradichlorobenzene block used in water-based urinals for deodorizing during each flush, and a second block portion that makes up about forty to sixty percent of the urinal block and has a second portion composition of a blended mixture of a non-paradichlorobenzene block portion, an odor counteractant gel, and a bacterial culture gel.

Abstract: An object is to provide a urinal which prevents offensive odors, reduces the consumption of urinal cleaning water and prevents clogging of the urinal drain pipe line. The urinal of the present invention includes a human body sensor (7), a control unit (11), a mechanism to generate a gas with high detergency (14), a gas flow line (La) in which generated gas with high detergency flows, and a cleaning water supply line (Lw) in which cleaning water flows, and the gas flow line (La) and the cleaning water supply line (Lw) converge to mix the gas with high detergency with the cleaning water, and a cleaning fluid line (Lc) formed by confluence of the gas flow line (La) and the cleaning water supply line (Lc) is communicated with a cleaning fluid ejection hole (5) on a urinal upper edge (1a).

Abstract: A diverter (170, 270) atop the upper wall (110) of a cartridge (100) and over the opening (114, 115) therein avoids direct access of urine to the opening and the sealant (105) within the cartridge. The diverter is spaced by standoffs (182, 282) from the upper wall to provide a urine flow passage. A float (274) can be incorporated in the diverter to provide a visible signal of the presence of collected urine on the cartridge upper wall. A pre-treatment chemically-constituted tablet (210) held by a retainer (200) in the diverter provides sanitizing and/or deodorizing means. Post-treatment chemically-constituted tablets (224a) or pellets (224b) placeable at the outlet of the cartridge protect the drain pipe from corrosion and other harm.

Abstract: In a urine cartridge, equalized pressures and increased flow rate between its inlet and outlet compartments increases the life of the cartridge. The pressure equalizing is effected by placement of a separator between the two compartments to provide them with substantially equal volumes. The increased flow rate is created by a uniquely configured baffle positioned adjacent a pan at the bottom of the cartridge. The baffle configuration is shaped to provide a constriction that increases the flow velocity of the urine so that the fluid flow effects a channel along the bottom pan and through any solids deposited on the bottom pan. A diverter may be placed above the centrally located entry to the inlet compartment to create a circuitous path for preventing a disturbing impingement of the urine onto the sealant contained in the inlet compartment.

Abstract: A urinal assembly includes a urinal device and a urinal deodorizer. The urinal device includes a basin and plumbing. The urinal deodorizer includes a housing, a deodorizing agent supply unit, a pipe, and an open-type air-freshening container. The deodorizing agent supply unit is disposed in the housing, and is adapted to hold a deodorizing agent and to dispense a predetermined amount of the same. The pipe has first and second ends. The first end is coupled to the outlet of the deodorizing agent supply unit. The open-type air-freshening container is coupled to the second end to receive and hold the predetermined amount of the deodorizing agent. The air-freshening container is coupled to the plumbing and is operable to supply a portion of the predetermined amount of the deodorizing agent to the urinal device via the plumbing.

Abstract: Disclosed herein is an apparatus for advertising a product or service and for sanitizing, deodorizing, and preventing splatter of fluids discharged in a urinal. The apparatus comprises a fluid permeable receptacle herein referred to as “receptacle” suspended along its longitudinal axis for absorbing discharged fluids and releasing the absorbed fluids into a drain of the urinal, an advertisement layer, and fasteners for fastening the receptacle to the urinal. The receptacle comprises particulate material embedded within compartments of the receptacle. The particulate material comprises an anti-splatter material for preventing splatter of fluids, an odor removal material for removing undesired odor from the fluids, and a sanitizing material for cleaning and disinfecting the fluids. Grommets along with the fasteners may be used for fastening the receptacle to the urinal. Advertisements may be printed on the surface of the receptacle or the advertisement layer.

Abstract: A waterless urinal has a fixture including a backsplash and side walls joining a bowl at the bottom. Mounted on the top of the fixture is a fluid reservoir, a valve and a controller. The controller periodically opens the valve to release a quantity of a cleansing sealant from the reservoir onto the non-wetted surfaces of the fixture. The cleansing sealant cleans the non-wetted surfaces and then flows into the bowl where it collects to replenish the trap seal.

Abstract: An odor absorber with a display device having an odor adsorbent cake, an odor absorbent cake retaining assembly, a portable power source and a cake retainer cover that includes an electronic display. One various embodiment includes the electronic display being enclosed in a water resistant enclosure.

Abstract: A mat or other object for attenuating reflective spray during use of a urinal comprises a urine impingement region that includes a plurality of upstanding, flexible bristles.

Abstract: A disposable, deodorant and splash proof urine dispersing device for placement in a urinal including a framework made of scented plastic material with a horizontal segmented supporting base and a central raised housing. The supporting base includes a plurality of perforated flexible segments and a central bottom frame with a central opening aligned with an outlet or drain in the urinal. The opening is surrounded by the multiple segments such that the device can flex and adapt to urinals of different sizes and designs. The central raised housing includes a horizontal or inclined top member and an upstanding peripheral wall connecting the top member with the central bottom frame in the supporting base. The peripheral wall includes flush relief openings and tapered for easy unit stacking. The top member includes a frame with a plurality of spaced parallel rods having a unique configuration for dispersing urine flow with reduced back splashing toward the user of the urinal.

Abstract: Odor Absorber Device for Urinal with an odor absorbing cake retaining device, the device including a flexible base plate and an integral raised, circular cake retaining wall, a standard odor absorbing cake and a thermochromic graphic display panel mounting on top of the odor absorbing cake. The base plate and the lower portion of the retaining wall have a plurality of apertures to allow the cake to be effective. The circular retaining wall has a non perforated upper portion. The retaining wall has an inwardly facing ledge integrally attached to the top surface of the retaining wall. The base plate has a frame member capable of removably retaining an advertising display panel.

Abstract: Odor Absorber Device for Urinal with an odor absorbing cake retaining device, the device including a flexible base plate and an integral raised, circular cake retaining wall, a standard odor absorbing cake and a thermochromic graphic display panel mounted on top of the odor absorbing cake. The base plate and the lower portion of the retaining wall have a plurality of apertures to allow the cake to be effective. The circular retaining wall has a non perforated upper portion. The retaining wall has an inwardly facing ledge integrally attached to the top surface of the retaining wall. The base plate has a frame member capable of removably retaining an advertising display panel.

Abstract: A protective screen which fits over the opening of a urinal to prevent splashback that commonly occurs when a stream of urine contacts the inside wall of the urinal. The screen functions to allow a stream of urine to pass therethrough but prevents the occurrence of splashback when the urine stream contacts the walls of the urinal or the water at the bottom of the urinal. The screen also provides a filter to prevent foreign articles (paper, gum, cigarette butts, etc.) from being flushed down the urinal. The screen is positioned in the urinal such that flush water flows over the entire surface of the screen thereby cleansing the surface and enhancing sanitary conditions.

Abstract: A toilet flushing method causes high-pressure flush water, provided by a flow pipe, to spray along the baffle in the bottom of the trap of a toilet bowl and causes the flush water used for washing the toilet bowl to spray into the toilet bowl. The high-pressure flush water discharges the egesta with water in order to supply sealing water to the trap. A toilet, which uses components for improving the prior art toilet, carries out the flushing method.

Abstract: A mat for a urinal. The mat includes a base, a disk with indicia thereon, baffles, hooks, and an optional container. The container receives either a urinal cake or an annunciator. The annunciator includes an activity switch, a signal conditioner, a counter conditioner, a sensor transducer that is exposed to the stream of urine, and an annunciator display that is visible and activates, either visibly and/or audibly, when the sensor transducer is impinged upon by the stream of urine.

Abstract: A waterless urinal employs a sealing liquid comprising 4-chloro-3-methylphenol in an amount effective to act as a biocide and a compound selected from the group consisting of (1) branched aliphatic alcohols with C12 to C24 carbon chain lengths, (2) a mix of the branched aliphatic alcohols and linear aliphatic alcohols with C10 to C18 carbon chain lengths, (3) a mix of the branched aliphatic alcohols and linear aliphatic fatty acids with C14 to C18 carbon chain lengths, and (4) a mix of the branched aliphatic alcohols, linear aliphatic alcohols with C10 to C18 carbon chain lengths, and linear aliphatic fatty acids with C14 to C18 carbon chain lengths.

Abstract: A sterilizing and air conditioning electronic urinal includes a power rectifier circuit, a microcomputer control unit, a sensitivity control circuit, time delay circuit, a high voltage generating circuit, an ozone generator, a mixing device, a flushing solenoid valve circuit, an heater, an air pump circuit, and others. By aforesaid components, the electronic urinal can be operated with the internal program of the microcomputer control unit and therefore, the objects of water-saving and foul-removing are achieved.

Abstract: A waste outlet device adapted for use with a urinal and comprising one-way valve means (12).

Abstract: A deodorant and urine dispersing device for placement in a urinal and including a receptacle mounted on a flexible base pad having an opening for alignment with the outlet opening in a urinal and including vertically spaced urine dispersing filters each of which includes a plurality of rod-like members oriented in spaced, parallel relation with the rod-like members in the upper dispersing filter being parallel to the path of urine flow and the rod-like members in the lower dispersing filter being perpendicular to the rod-like members in the upper dispersing filter. Each of the rod-like members have a generally cylindrical upper surface and a lower edge defined by downwardly converging surfaces forming a V-shaped configuration with the lower apex defining a narrow edge to reduce capillary action and reduce splashing of urine when it engages the dispersing filters.

Abstract: An inline sanitary conditioning system for a toilet or urinal system comprises a hollow body plumbed into a flush line between the flush valve and the bowl of the toilet or urinal. A cage is mounted to into a chamber in the body through which the flush water passes. A solid tablet comprised of a soluble sanitary conditioning material is retained in the cage so that actuation of the flush valve causes water to flow through the upper end of the body into the chamber to dissolve a portion of the solid tablet to form a sanitary conditioning solution which is delivered to the bowl of the toilet or urinal. Preferably, electronic sensing apparatus are provided to detect users of the urinal or toilet, count the number of users, and activate a signal to alert maintenance personnel of the need to replace the sanitary conditioning tablet after 2000 or more users (or any other number) have been counted or predetermined number of days have elapsed.

Abstract: An inline sanitary conditioning system for a toilet or urinal system comprises a hollow body plumbed into a flush line between the flush valve and the bowl of the toilet or urinal. A cage is mounted into a chamber in the body through which the flush water passes. A solid tablet comprised of a soluble sanitary conditioning material is retained in the cage so that actuation of the flush valve causes water to flow through the upper end of the body into the chamber to dissolve a portion of the solid tablet to form a sanitary conditioning solution which is delivered to the bowl of the toilet or urinal. Preferably, electronic sensing apparatus are provided to detect users of the urinal or toilet, count the number of users, and activate a signal to alert maintenance personnel of the need to replace the sanitary conditioning tablet after 2000 or more users (or any other number) have been counted or predetermined number of days have elapsed.

Abstract: A urinal screen having a generally triangular planar configuration includes one or more through openings between its top and bottom surfaces. The screen is composed of a liquid soluble material and includes a deodorant which is released as the screen dissolves. Another embodiment of the invention includes contoured top and bottom surfaces tapering away from the center of the screen and downwardly toward its periphery. The soluble material may also include a fragrance and a detergent. A further embodiment includes a raised locating boss on the bottom surface for cooperation with the urinal drain. Still further, the screen may be packaged in a liquid soluble film.

Abstract: A deodorant holding device for a plumbing fixture. The device is comprised generally of a base, having an upper and a bottom surface, and a deodorant receiving cavity. The base has a plurality of upwardly extending pin members positioned on its upper surface. The pin members deflect and limit splashing of liquid directed onto the base. A cover is releasably securable to the bottom of the base in order to releasably retain deodorizing material within the cavity.

Abstract: A urinal flushing control device, including a three-way pipe having a first end connected to a water intake pipe, a second end connected to a water outlet pipe through a mixing cylinder, and a third end in the middle mounted with a spring-supported ball valve and connected to an ozonizer. The spring-supported ball valve is drawn inwards by a vacuum suction force when water is discharged from the water intake pipe to the water outlet pipe, to open the passage between the third end of the three-way pipe and the ozonizer, permitting ozone to flow from the ozonizer into the three-way pipe for mixing with water passing therethrough.

Abstract: A urinal screen assembly for disposition adjacent the drain of a urinal is disclosed. The screen assembly includes feet or risers depending from the lower surface to maintain a spaced relation between at least the marginal edge of the assembly to allow liquid to flow therebetween and simultaneously prohibit the passage of unwanted solid materials. The main body portion of the screen assembly is provided with a plurality of tapered apertures which provide fluid communication therethrough and minimizes splash-back caused by an impinging stream of urine.

Abstract: An automatic detergent dispenser includes an accommodating member mounted on a top of and communicated with a urine bowl, a water guiding member securely mounted in the accommodating member for intercommunicating the accommodating member with a water source and having a plurality of water guiding holes, a solid detergent provided in the accommodating member, and a housing for encasing the accommodating member. Most water from the water source passes through the water guiding member and the accommodating member to the urine bowl while the remaining water passes through the water guiding holes to contact with and thus dissolve part of the solid detergent, and the dissolved detergent merges with the most of the flushing water after passing through the accommodating member and flows into the urine bowl for flushing purpose.

Abstract: A urinal mat provided with upstanding baffles to decelerate a stream of urine impinging thereon. The base of the mat is contoured and flexible to conform generally to the geometry within the urinal. Openings through the base are provided to permit liquids to drain through. Optionally provided are upstanding posts to receive a cake of deodorant thereon. An alternative embodiment provides a depression in the base into which deodorant may be deposited during manufacture. A flexible flange depends from an edge of the mat to engage the urinal sidewall in order to direct flush water over the mat.

Abstract: A non-splashing urinal deodorant block holder is used in a vertical type toilet or urinal. The urinal deodorant block holder can hold a deodorant block to rid the urinal of the unpleasant odor of urine and will not splash back the urine when the urine strikes the non-splashing urinal deodorant block holder.

Abstract: The present invention relates to an improved urinal block composition comprised of fluid-soluble chemical components, and an improved dispenser to be used with that urinal block. Specifically, the present invention is directed to a unique combination of chemicals that when blended together to form a urinal block composition yields a stable product that is effective at deodorizing and cleaning urinals and toilets. The improvement of using an acid stable protease enzyme with the other fluid-soluble chemical components of the urinal block composition provides the advantage of dissolving and otherwise neutralizing odors associated with urinals and toilets. The urinal block is retained in and dispensable from a disposable dispenser assembly 10 for use in urinals and toilets.

Abstract: A urinal mat provided with upstanding baffles to decelerate a stream of urine impinging thereon. The base of the mat is contoured and flexible to conform generally to the geometry within the urinal. Openings through the base are provided to permit liquids to drain through. Optionally provided are upstanding posts to receive a cake of deodorant thereon. An alternative embodiment provides a depression in the base into which deodorant may be deposited during manufacture. A flexible flange depends from an edge of the mat to engage the urinal sidewall in order to direct flush water over the mat.

Abstract: This invention provides a flush toilet with an automatic sterilizing device, which can discharge a small volume of flush water first upon sensing a user having used it, and then discharge a large volume with a given volume of sterilizing liquid so as to wash away any urine sediment in a urinal completely. The device comprises a control circuit to control a solenoid valve for controlling a given volume of flush water, and to control a sterilizing unit; the sterilizing unit includes a sterilizing liquid container which is controlled with a liquid pump to discharge liquid. The liquid pump is controlled with the control circuit. During the large volume discharge of water the liquid pump can pump and discharge a suitable volume of sterilizing liquid to mix with the flush water to wash and sterilize a urinal simultaneously.

Abstract: The chemical setting receptacle comprises a receptacle body loading chemical and a lid covering the top opening of the receptacle body, wherein the lid is formed by connecting more than one vertical plate and a passage connected to a chemical loading section of the receptacle body is installed between the vertical plates. Urine and water hitting the ridge of the vertical plate separate and fall into the chemical loading section and also, urine and water entering the passage hit the side of the vertical plate and fall into the chemical loading section. Therefore, urine and water do not splash outward. The receptacle body and lid are made of decomposable plastic material containing an additive having a decomposition by microorganisms and sunlight characteristic. After the receptacle is used, the additive is naturally decomposed in a short time by activity of microorganisms and irradiation of sunlight, the plastic material collapses into a granular resin, and the receptacle loses its original form.