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| Number | Title | Issue Date |
| 4516281 | Sewage treatment device A sewage treatment device [10] is disclosed for use with a toilet [12] having a water flush input [16] and a sewage output [22]. The invention incorporates a treatment tank [56] connected for receiving the sewage from the sewage output [22] of the toilet.... | 05/14/1985 |
| 4377874 | Bypass valve for a toilet system In a toilet system wherein the bowl is evacuated by a pump, the intake side of which is connected by a first conductor to the bowl and the discharge side of which is connected by a second conductor to a waste pipe, a bypass conductor connecting the first ... | 03/29/1983 |
| 4357719 | Non recirculating method of disposing of waste products for aircrafts A method of flushing a toilet for aircraft or the line using vacuum and pressure, in which there is a toilet or other waste receiving bowl, a waste the holding tank, and a valve means for opening or closing the drain line. A vacuum is created in the waste... | 11/09/1982 |
| 4332041 | Pressurized drain for toilet waste tank A drainage apparatus for an aircraft lavatory system includes a waste holding tank that receives waste from the individual toilet units. The waste holding tank has a pressurization port and a waste drain opening formed in an upper portion thereof. A blowe... | 06/01/1982 |
| 4324007 | Sanitation system particularly for marine craft A macerator/ejector pump within a waste material holding tank on a boat liquefies solid waste material in the tank and pumps the liquefied waste material through a discharge line adapted for connection to an on-shore waste collection system. The macerator... | 04/13/1982 |
| 4319366 | Waste storage apparatus Apparatus for disposing of the waste from a boat head, the apparatus consisting of a flexible container which may be readily connected and disconnected from the discharge of the head, thus allowing selective discharge to storage or to the sea.... | 03/16/1982 |
| 4310934 | Water-conserving toilet A water-conserving toilet is disclosed and includes a bowl for receiving waste and a waste outlet extending laterally from the bowl and defining a first, shallow trap arranged so that a relatively shallow body of liquid is normally retained in the bottom ... | 01/19/1982 |
| 4223702 | Drain line for recreational vehicles A telescoping drain line for connecting recreational vehicles to a sewage system has telescoping rigid wall drain pipes having a plurality of pipe sections telescoping one within the other. A flexible hose extends through the telescoping pipes and out eac... | 09/23/1980 |
| 4217668 | Portable toilet A portable toilet of the type having two vertically stacked sections, the lower section (12) being a holding tank, and the upper section (14) including a toilet bowl (22), a water tank (26) for storage of water for flush purposes, and flush apparatus (32)... | 08/19/1980 |
| 4216554 | Automatic freeze-proof drain system A system to protect piping and containers from damage by freezing of contained aqueous liquid includes a temperature-actuated SPDT switch connected at its movable contact to a rechargable battery. The fixed contacts of the switch are connected to two inpu... | 08/12/1980 |
| 4215445 | Portable toilets A portable toilet of the type having two vertically stacked sections, the lower section (12) being a holding tank, and the upper section (14) including a toilet bowl (22), a water tank (26) for storage of water for flush purposes, and a pump (30) for flus... | 08/05/1980 |
| 4199828 | Vacuum toilet apparatus for mobile units The disclosure relates to a vacuum toilet apparatus for mobile units, for example trains or buses, having at least one toilet stool from which faeces etc. are conveyed by means of a vacuum to a storage container by the intermediary of a conduit system. A ... | 04/29/1980 |
| 4180876 | Portable toilets A portable toilet that has a lower holding tank with an inlet port in the top wall, and removably supported thereon an upper unit that contains a toilet bowl with an oulet port in registry with said inlet port, a flush water storage tank and flush means f... | 01/01/1980 |
| 4133347 | Waste evacuation attachment for recreational vehicles A waste evacuation attachment for a recreational vehicle comprises a rigid cylindrical housing readily mountable to the existing fittings of a sewage discharge outlet of the recreational vehicle, there being a telescoping hose contained within the housing... | 01/09/1979 |
| 4115879 | Water recirculation system A system to be incorporated in new or in existing buildings where the waste lines of lavatory sinks, showers and clothes washing machines are connected to a storage reservoir for accumulation of water therein. This accumulated water is filtered and treate... | 09/26/1978 |
| 4114203 | Water closet tank drain valve A self-contained, recirculating flush liquid, type of water closet for passenger aircraft; wherein, the means for periodically draining the contents of the waste holding tank, comprises an inverted U-shaped tube which is separated at the bend of the U-sha... | 09/19/1978 |
| 4083067 | Recirculating toilet and method A recirculating toilet having a bowl and a storage chamber, and recirculating means for recirculating liquid from the storage chamber through the bowl and back into the storage chamber. Filter means is interposed between the storage chamber and the recirc... | 04/11/1978 |
| 4069952 | Containers for noxious substances A container for noxious substances provided with a discharge orifice in its lower wall with a plunger extending through the upper wall of the container and adapted to move from a first position sealing the discharge orifice to a second position retracted ... | 01/24/1978 |
| 4032995 | System and method for treating human waste A toilet system for use on vehicles, such as railroad trains and boats, wherein the toilet contents are chlorinated and ground into a slurry of a predetermined size prior to pumping out. The system includes a grinder which recirculates the toilet contents... | 07/05/1977 |
| 4028746 | Portable toilet A portable toilet comprising: a housing at least a portion of which defines a reservoir for holding clean flushing fluid; a toilet bowl connected to said housing for upward pivoting movement from a normal horizontal position, in which flushing fluid and b... | 06/14/1977 |
| 3992727 | Portable toilet A portable urinal includes a base, a housing surrounding the base and a waste material receptacle in said housing. The housing is formed of a pair of molded one-piece portions, the forward of the two portions including a urine receiving basin which is con... | 11/23/1976 |
| 3975256 | Apparatus for treatment of aqueous sewage composition There is provided an improved apparatus and method for relatively low volume batch treatment and disposition of sewage or toilet wastes especially from passenger vehicles such as railway cabooses, motor houses, or other passenger-carrying vehicles. The ap... | 08/17/1976 |
| 3974528 | Sewage system with reusable flush medium A sewage system in which the transport medium or flush medium is a liquid having a specific gravity less than that of water. The flush medium after transporting sewage waste to a tank or the like thereafter separates from the sewage and floats on top of i... | 08/17/1976 |
| 3963040 | Waste disposal system A waste disposal system for a boat equipped with a head and a waste-holding tank for receiving sewage therefrom. A dual deck fitting and associated equipment permits conventional dockside pumpout of the holding tank and also permits overboard dump of the ... | 06/15/1976 |
| 3939501 | Toilet A self-contained portable toilet that has a bowl which is mounted on a support bucket or holding tank. The bowl has an outlet port for discharging the contents of the bowl into the bucket, and a closure means for the outlet port is provided which comprise... | 02/24/1976 |
