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| Number | Title | Issue Date |
| 7416670 | Dual-cell mechanical flotation system with intermittent skimming It has been discovered that a mechanical flotation system (10) having only two cells (18, 20) can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operati... | 08/26/2008 |
| 7032834 | Filtering device for an irrigation system A filtering system for filtering particles from a flow of fluid is disclosed, and includes a filter device for removably positioning in a lumen of a pipe carrying the flow of fluid. The filter device has an upstream side for positioning in an upstream direction of f... | 04/25/2006 |
| 6953527 | Fuel tank with water trap A fuel tank for use with small internal combustion engines, the fuel tank having an inlet and an outlet and storing a quantity of fuel therein. A hydrophobic barrier is positioned within the fuel tank in flow communication with the outlet, and permits the passage of... | 10/11/2005 |
| 5207897 | Floating hydrocarbons separator pump with buoyant housing and two-chamber vertically moveable member An automatic pumping system for removal of floating contaminants and oil and gasoline seepage from water wells. A vertically reciprocating cone-shaped member, like an inverted funnel, is moved between positions above and below the water surface. As it sub... | 05/04/1993 |
| 5149423 | Apparatus for the purification of waste water with swivelling mixing container An apparatus for purifying waste water by precipitating out foreign material as solids and separating the solids from the purified water comprising a rotatable semi-cylindrical open container and a band filter beneath the container for receiving the conte... | 09/22/1992 |
| 5114572 | Filter assembly and cartridge therefor An assembly is provided of a filter bowl (10), a cartridge (12) and a head (11) in which the filter bowl (10) can be removed after it has descended from the filter head (11) through a distance corresponding to only a minor part of the length of the filter... | 05/19/1992 |
| 5071546 | Filtering device, particularly a suction filter In the case of a horizontal filter surface, a base plate together with U-shaped bars fixed to the surface thereof form the support for the filter surface. Between the bars, the profile legs form drainage pipes for the filtrate. The passage of the bars is ... | 12/10/1991 |
| 3965006 | Liquid waste disposal A liquid waste disposal unit for use in a hospital to handle potentially contaminated waste materials or the like is disclosed. The disposal unit has a funnel shaped wet bottom chamber connected to a trap section. A rinse means for a container extends up ... | 06/22/1976 |
| 3945921 | Rotary centrifugal machine A rotary centrifugal machine, for example a centrifugal extractor for removing fluids from wet laundry loads, includes a basket rotatable within a casing. A load conveyor deposits material into the basket while the basket rotates at a relatively low speed... | 03/23/1976 |
