Abstract: An example vacuum-assisted toilet includes a toilet bowl including an outlet. The outlet of the toilet bowl is fluidly coupled to a first flush valve, for example, using a first pipe. The first flush valve is fluidly coupled to a second flush valve that is positioned downstream from the first flush valve. For example, the first flush valve may be fluidly coupled to the second flush valve using a second pipe. The second flush valve is fluidly coupled to a vacuum source. The vacuum source may include, for example, a holding tank having a vacuum pressure therein, a vacuum pump, or any other suitable vacuum source.

Abstract: A toilet includes first and second flushing outlets, and first and second electro-magnetic valves. The operation time for the first and second electro-magnetic valves is controlled by the controller. Water is dispensed by the first and second electro-magnetic valves and flows to the first and second pipes to respectively flush the waste in the second and first rooms from the first and second flushing outlets.

Abstract: A brace for a wall-mounted toilet, particularly useful for wall-mounted porcelain toilets in hospitals and other health care facilities. The brace a weight receiving structure supported by cantilevered struts that attach the brace to the wall, preferably using the same bolts that attach the toilet to the wall. The weight receiving structure may be seat portion that overlies the rim of the toilet bowl, so that the weight of the user is transmitted from the toilet seat to the seat structure and then to the walls through the struts. Alternately, the weight receiving structure may include an under-bowl support that extends underneath the toilet bowl so that the user's weight is transmitted from the bowl to the wall through the struts. Thus, the cantilevered brace increases the weight-bearing capacity of the wall-mounted toilet. A plastic shroud may be included for enclosing the brace and toilet bowl.

Abstract: A flush toilet apparatus that can reduce the total amount of wash water supplied to a bowl portion, even though a jet-pump water supply mechanism is mounted on a toilet body. A jet pump unit induces a jet pump action for making a flow rate of water flowing inside of a throat pipe higher than a flow rate of water injected from a nozzle to supply water at the increased flow rate to water ejection portions, and the flush toilet apparatus switches a channel state of the jet pump unit to sequentially execute a first step, in which water at a first flow rate is supplied to the water ejection portions, and a second step, in which water at a second flow rate lower than the first flow rate is supplied to the water ejection portions.

Abstract: A flush toilet apparatus that can reduce the total amount of wash water supplied to a bowl portion, even though a jet-pump water supply mechanism is mounted on a wash-down toilet body. A jet pump unit induces a jet pump action for making a flow rate of water flowing inside of a throat pipe higher than a flow rate of water injected from a nozzle to supply water at the increased flow rate to water ejection portions, and the flush toilet apparatus switches a channel state of the jet pump unit to sequentially execute a water flow forming step, in which water at a first flow rate is supplied to the water ejection portions, and a water flow maintaining step, following the water flow forming step and in which water at a second flow rate lower than the first flow rate is supplied to the water ejection portions.

Abstract: A flush toilet apparatus includes a tank and a jet pump unit. The tank includes: a first tank portion; and a second tank portion formed so as to extend part of a bottom wall of the first tank portion downward. The jet pump unit includes a throat pipe provided with a suction port that is an inlet of water, and at least the part of the second tank portion is formed at a position overlapping with the suction port when viewed from the top.

Abstract: A flush toilet apparatus includes a tank and a jet pump unit. A throat pipe of the jet pump unit includes a linear portion formed to linearly extend obliquely upward from a suction port that is an inlet of water. The suction port is formed so that the entire edge is along a horizontal surface.

Abstract: This flush toilet apparatus includes a traveling-direction switching mechanism switching a mode between a toilet washing mode and a tank storage mode. This traveling-direction switching mechanism includes: a shield portion directing jet water to an outside of a throat pipe at a time of the tank storage mode; a moving mechanism moving the shield portion from a position at a time of the toilet washing mode in a first direction to a position at the time of the tank storage mode; and a guide surface switching a traveling direction of the jet water so that after the traveling direction is switched, a flow rate of the jet water is higher in a second direction opposite to the first direction than in the first direction.

Abstract: A flush toilet apparatus includes a tank and a jet pump unit. A throat pipe of the jet pump unit includes: a first linear portion formed to linearly extend obliquely upward from a suction port; and a second linear portion formed to linearly extend toward an inlet of a water conduit on a lower side, and the entire throat pipe is in an inverted U-shape when viewed from the side. The throat pipe is arranged so that an angle between a central axis of the second linear portion and a vertical direction is smaller than an angle between a central axis of the first linear portion and the vertical direction when viewed from the side.

Abstract: A vacuum toilet and a method for operating a vacuum toilet, wherein generating negative pressure to remove solids by suction is also used for generating a desired flushing medium flow. To this effect, if necessary, guiding devices are used which influence a flow upstream of a nozzle outlet and downstream of a nozzle outlet such that flow optimization of the flushing medium can be carried out.

Abstract: A pump assembly for connection with a water source inlet (4), a sewer outlet (5) and a toilet (1), said toilet (1) comprising a toilet flush water inlet (2) and a toilet waste outlet (3), said pump assembly comprising: a pump housing with a pump flush water inlet (27), a pump flush water outlet (28), a pump waste inlet (25) and a pump waste outlet (26), and with means arranged to selectively allow water to flow from said pump flush water inlet (27) to said pump flush water outlet (28), and with means arranged to selectively pump waste from said pump waste inlet (25) to said pump waste outlet (26), characterized in that said pump assembly further comprises a connection system comprising two connection members (6, 7) that can be connected to each other: said first connection member (6) comprising a toilet waste outlet port (21) arranged to be connected to said toilet waste outlet (3), and a sewer outlet port (20) arranged to be connected to said sewer outlet (5), said second connection member (7) comprising sai

Abstract: A flush toilet in which an appropriate amount of water is supplied and that can be installed in an area where water pressure is low.

Abstract: A pump assembly includes a housing and first and second valves. The housing has a fluid inlet port and a fluid outlet port. The first and second valves are substantially identical valves both including a mounting portion, a valve seat and a valve body. The mounting portion has a first end and a second opposite end. The first and second ends are both selectively mountable to a conduit defining a fluid path. The valve seat is interconnected to the mounting portion. The valve body is interconnected to at least one of the mounting portion and the valve seat for movement relative to the valve seat between a seated position and a closed position. The valve body includes a first side and a second side and is operative to seal against back flow from the first side and open to positive pressures on the second side. The first valve is mounted to the fluid inlet port with the first end such that the first valve normally functions to only permit fluid to flow into the housing.

Abstract: A toilet system includes a toilet and a pump assembly. The toilet has a bowl and a base. The base has a hopper for receiving waste from the bowl. The pump assembly is operative for pumping a source of flush water to the bowl and for pumping the waste from the hopper. A first flexible conduit interconnects the pump assembly and the bowl. A second flexible conduit interconnects the pump assembly and the hopper. The pump assembly is flexibly interconnected to the toilet for independent positioning relative to the toilet.

Abstract: A toilet utilizes a pressurized fluid source providing a flush volume of less than 1 gallon. A removable discharge passageway is sealingly coupled at a first end to the toilet waste outlet and at a second end to a floor flange, and defines a trapway for providing a water seal therebetween. In one example, the water seal includes a water column, and the discharge passageway is configured to maintain at least about 80% of the water column therein when the toilet is pivoted about 10 degrees. In another example, an upleg extends vertically upward a distance sufficient to maintain a minimum water column within the upleg necessary to maintain the water seal between the bowl and the floor flange when the toilet is pivoted about 10 degrees. In another example, a support bracket maintains the second end of the discharge passageway generally fixed relative to the first end.

Abstract: An embodiment provides a toilet having a toilet pan 11, an outlet pipe 78 for the contents of the pan, a closeable lid 21 on the pan forming with the pan a waste receptacle chamber, a seal 22 between the lid 21 and the pan 11, means 12 for introducing water into the chamber to wash the internal surface of the pan, and means 2 for subsequently increasing the air pressure in the chamber to force the contents of the pan through the outlet pipe.

Abstract: A flush toilet having two nozzles located within its bowl. The two nozzles being oriented in opposite directions and alternately providing pulses of flush water into and around the bowl.

Abstract: A vacuum toilet system for a vehicle, notably a passenger aircraft, comprising a plurality of toilets (1), a collecting tank (4), a duct system (3) which connects the toilets (1) with the collecting tank (4) via one flush valve (2) per toilet, a vacuum generator (5) which is connected to the collecting tank (4) in a fluidic manner, a flush water tank (8) and a flush water system (9), which connects the toilets (1) via one flush water valve (10) each and/or via a flush water pump with the flush water tank (8). A flush control (11) which acts on the flush valve (2) and the flush water valve (10) or flush water pump of the individual toilets (1) and can be actuated via an actuating means (12) assigned to the toilet. A standard flush program is stored in said control.

Abstract: Apparatus for injecting a reagent into a stream of pressurized rinse fluid delivered to a vacuum toilet. The apparatus is pressure-operated in response to the flow of pressurized rinse fluid, thereby eliminating the need for electric outlets or controls. The apparatus includes an orifice located in a main conduit upstream of a reagent discharge outlet. The orifice reduces the pressure of the rinse fluid thereby to unload a check valve which controls injection of the reagent into the rinse fluid stream. In addition, the volume of a pump chamber for holding reagent is reduced to ensure that the pump maintains its prime. Furthermore, the piping leading into the pump chamber has a relatively uniform inside surface and a tapered insert is used to reduced the cross-sectional area of the reagent extreme, thereby directing air bubbles through the pump chamber.

Abstract: A flush toilet has a housing and a bowl set in the housing, having an upper rim, and having an inner surface extending downward from the rim. A ring atop the bowl has a plurality of nozzles spaced about the rim and each directed at an acute angle against an immediately adjacent portion of the inner bowl surface. Respective conduits have outer ends connected to the nozzles and inner ends. A supply feeds water under pressure to the inner ends and thereby directs streams of water from the nozzles against the inner surface. The conduits are all of substantially the same length between their ends so that pressure at the nozzles is uniform. These conduits are at least partially formed by flexible tubes. In addition each nozzle has an oval-shaped outlet opening and is directed at an acute angle of between 10° and 20° against the respective adjacent bowl portion and also at an angle of between 20° and 40° to vertical.

Abstract: Apparatus for pressurizing rinse fluid to a toilet is provided comprising a reservoir for receiving gravity fed rinse fluid. The reservoir is connected to a source of pressurized air through an air inlet valve mechanically coupled to a controller. A rinse fluid discharge valve is connected to an outlet of the reservoir and is operatively connected to the controller. When triggered, the controller allows pressurized air to enter the reservoir, thereby pressurizing the rinse fluid contained therein. The controller then opens the rinse fluid discharge valve to deliver the pressurized rinse fluid to the toilet. The controller and rinse fluid discharge valves are preferably pneumatically operable so that a separate power source is not required for the pressurized rinse fluid apparatus.

Abstract: A portable and covered toilet which can be easily assembled and used in a variety of remote locations that require proper waste disposal. An inexpensive flushing system maintains sanitary conditions, and, a cover, included to provide privacy, is folded onto the base, and the toilet is taken apart and situated thereon in a convenient, packaged unit.

Abstract: A vacuum toilet system comprises a toilet bowl having an outlet opening, a sewer pipe having an interior space, a discharge valve connecting the outlet opening of the toilet bowl to the sewer pipe, and a source of partial vacuum for establishing a lower pressure in the interior space of the sewer pipe than in the toilet bowl. A nozzle defines a rinse liquid outlet for introducing liquid into the toilet bowl. A container for reagent is in communication with the rinse liquid outlet. Reagent is introduced into the toilet bowl by way of the rinse liquid outlet in timed relationship to introduction of rinse liquid into the toilet bowl.

Abstract: A vacuum toilet system efficient transport of waste material from a toilet bowl to a collection station by means of differential pressure, comprising an actuator button, a discharge valve, a water valve, and a controller valve. The various valves are simple in construction and operate on the basis of pneumatic pressure. The system is compact enough to fit into the cabinet of a conventional toilet fixture.

Abstract: A vacuum tank assembly has a low volume configuration so that it can be used in boats and recreational vehicles where space is at a premium. A stack of components, with a waste tank at the bottom, then a vacuum tank with directly connected vacuum pump, and one or more fresh water tanks, is located remote from a vacuum toilet, with a discharge from the toilet (below a vacuum-tight ball valve) connected to the vacuum tank, which is in turn connected to the vacuum pump, in turn connected to the waste tank. A submersible centrifugal pump may be provided mounted to a cap of the water tank, with an anti-siphon device associated with it. The vacuum tank is of high density polypropylene having flat walls, with no continuous flat surface more than 80 square inches. Lipless duckbill check valves are provided on opposite sides of the vacuum pump, the valves of elastomeric material having a ratio of the wall thickness to thickness of the sealing edges of about 1:1.

Abstract: A vacuum toilet system for a vehicle (such as a boat) has numerous advantages. A single pump with valves on opposite sides of it may be used as both the vacuum source and for discharging sewage from a holding tank. Two sets of multiple heads may be selectively connected to two pumps for emergency purposes. The vacuum toilet includes a sealing element with an integral movable valve engaging element including polytetrylflouroethylene and synthetic rubber, and at the same durometer (55-65). The initial passageway provided by movement of the valve with respect to the seal is disposed directly above the center line of an orifice. An an anti-siphon valve assembly has a simple construction of a housing with parallel legs and anti-siphon air passage in alignment with one of the legs. A spray nozzle extends from the other legs of the anti-siphon valve assembly. The toilet funnel/orifice is universally connected to conduits.

Abstract: A toilet bowl has a discharge opening for flowing waste material into a gas-tight hopper. A waste valve is disposed between the discharge opening and the hopper for controlling the flow of waste material into the hopper. A first air valve selectively allows air to flow into the hopper for pressurizing the hopper and communicating the waste material from the hopper to the inlet of a grinder. The outlet of the grinder is coupled to a one-inch waste conduit which leads to a waste tank which may be disposed in any convenient location. A second air valve selectively allows air to flow into the waste conduit for pressurizing the waste conduit and forcing the waste at high velocity to the waste tank.

Abstract: A low water flush toilet having a bowl with a horizontal ledge extending around the bowl periphery near its open upper end with a flush water nozzle on the ledge for discharging water in a generally horizontal direction onto the ledge. A pulsator is provided for producing pulses of flush water that are discharged onto the ledge with the water of each pulse flowing at varying velocities such that as the water flows around the ledge, some of the water will fall off the ledge around substantially the entire periphery of the bowl resulting in wetting of the entire bowl surface for cleaning the bowl. The pulsator includes a spring biased piston for discharging pulses of water.

Abstract: A drain valve is provided for connection to a water supply line for draining water in a vacuum flush aircraft sanitation system. The valve comprises a housing having a fluid inlet and a fluid outlet. The housing also includes a pressure chamber with a diaphragm that is normally biased to a first position by a spring when the chamber is depressurized. This allows water to flow from the fluid inlet to the drain outlet and ultimately to drain mast of the aircraft. When the chamber is pressurized, however, the diaphragm moves to a second position which operates a linkage mechanism that moves a plug against a seat in the drain outlet to close the drain outlet so that rinse water does not drain from the valve's fluid inlet. A sanitation system also is disclosed, in which grey water from the aircraft lavatory sink is collected and transferred under pressure through a rinse line to flush a toilet bowl when the drain valve is closed.

Abstract: A portable toilet having a battery operated flushing assembly that is powered by batteries carried in the toilet. The batteries provide for a "pulsed" flushing action of the flush water and this is achieved by the use of an axial flow pump which is operable to lift small amounts of water small distances to the bowl in a repeatable fashion. This facilitates flushing of the toilet, makes it easier for the user to flush the toilet, and provides for efficient and complete flushing. A selectively operable closure plate prevents leakage of water from the toilet bowl during transport of the toilet.

Abstract: A vacuum toilet system comprises a waste-receiving bowl defining an interior space for receiving waste material. A sewer pipe defines an interior space that can be placed at a pressure that is lower than that in the interior space of the waste-receiving bowl, and a discharge valve is connected between the outlet of the waste-receiving bowl and the sewer pipe for controlling passage of material between the waste-receiving bowl and the sewer pipe. A rinse liquid valve controls supply of rinse liquid to the waste-receiving bowl. A controller is responsive to a user stimulus to open and close the discharge valve in accordance with a predetermined cycle, and to open the rinse liquid valve during at least the interval during which the discharge valve is being opened.

Abstract: Two flanged sleeves, closed and valved at one end, and a bonnet with two gudgeons act as a cylinder-piston mechanism for pumping. The upper sleeve is movable and spring-loaded, accepts and is filled with liquid. When the bonnet is depressed, through its gudgeons, upper valve is closed, upper sleeve is pushed down, lower valve is constrained open, and the content is pumped into a discharge.

Abstract: This invention discloses an improvement in the flush-toilet at which the water will flush out automatically into the basin at the period of time after somebody uses it. By means of two pumps installed at different levels and a connector to contain a magnet, a lever will be controlled to activate another pump to jet air into a water tank. This action opens a water conduit in the tank and the water is permitted to flush into the basin. Also the compressed air in the water tank presses strongly the water to flow into the conduit. The time in delaying the drainage of water to flush into the basin depends on the speed of the magnet moving in the connector, and the length and the inclination of that connector. The magnet is drawn upward in the connector when the lower pump is activated by the weight of somebody upon the seating circle. After the utilizer leaves the flush-toilet, the magnet moves back to its primary location to attract a lever.

Abstract: A toilet system capable of rendering the effluent innocuous and reducing the solid matter therein to microparticle size comprising a reversible, motor-driven pump and a two-position valve operable, on the one hand, for taking water into the system for flushing effluent from the bowl into a treating chamber and, on the other hand, to empty the treating chamber and discharge the effluent from the system so that both the pump and the valve are self-purging. There is a two-position switch for reversing the motor-driven pump and a valve rod for moving the two-position valve from one position to the other. A motor-driven macerator in the treating chamber provides for effecting maceration of the effluent flushed into the treating chamber. A bacteriacide may be employed to render the effluent innocuous. The macerator is operable independently of the motor-driven pump so that the system can be purged without simultaneous operation of the macerator.