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| Number | Title | Issue Date |
| 4457849 | Method and apparatus for filtering industrial and human waste A filter system for entraining solid matter contained in a fluid wherein a mass of particulate filter material is suspended in a fluid confined within an enclosure and the fluid containing the solid matter to be filtered therefrom is pumped into the mass ... | 07/03/1984 |
| 4404696 | Fluid velocity assist A toilet bowl provided with one or more fountains supported inside the rim so structured as to project solid, fan-shaped sheets of flush water downwardly on the inner surface of the bowl and a flange peripherally of the rim overlying the fountains.... | 09/20/1983 |
| 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 |
| 4347142 | Effluent treatment in a non-polluting toilet system The method of treating human waste in a toilet system for disposal of the waste and recovery of the flushing liquid comprising reducing the solid matter in the effluent by hydraulic attrition in substantially one and a half liters of water containing an e... | 08/31/1982 |
| 4333185 | Water saving toilet system A toilet system comprising a bowl, a valve for supplying flush water to the bowl, an attrition chamber to which the effluent in the bowl is transferred by a motor-driven discharge pump connected to the attrition chamber for inducting the effluent from the... | 06/08/1982 |
| 4246665 | Non-polluting toilet system Apparatus for disposing of human waste comprising in combination a bowl, a treating chamber connected to the bowl for receiving the contents of the bowl together with a predetermined quantity of flush water, a macerator in the treating chamber for effecti... | 01/27/1981 |
| 4131959 | Non-polluting toilet system 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 flu... | 01/02/1979 |
