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| Number | Title | Issue Date |
| 7572627 | System of processing mixed-phase streams Heat transfer in non-turbulent highly viscous mixed-phase flowing streams can be improved by altering flow characteristics using spiral-shaped elements to eliminate boundary phenomena. The spiral-shaped element promotes helical or spiral flow paths to reduce or elim... | 08/11/2009 |
| 7001516 | Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system A multi-phase process for removing phosphorus from wastewater in a triple ditch or triple basin system where wastewater influent is sequentially directed to each of the three basins or ditches, sometimes referred to as first and second outer basins and an intermedia... | 02/21/2006 |
| 6994785 | Removable grid for filter element screens A fine filter screen assembly comprising a length of filter screen having a relatively fine filtering surface and terminating at opposite ends with opposed end shafts. Generally open connecting means interconnect the opposed end shafts to define a continuous loop st... | 02/07/2006 |
| 6887452 | System and method for precipitating salts A system and method for producing salts using a crystallizer with an integrated column is disclosed. In the column, liquid, containing one reactant, absorbs a second reactant, from the gas stream. The second reactant reacts with the first reactant to produce salt. L... | 05/03/2005 |
| 6830689 | Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system A multi-phase process for removing phosphorus from wastewater in a triple ditch or triple basin system where wastewater influent is sequentially directed to each of the three basins or ditches, sometimes referred to as first and second outer basins and an intermedia... | 12/14/2004 |
| 6800208 | Hydrocyclone bundle A hydrocyclone bundle comprising a plurality of hydrocyclone liners and a plate assembly for use in liquid-liquid separation is disclosed. The hydrocyclone bundle may be used in new or existing separators. The hydrocyclone liners may be oppositely positioned within ... | 10/05/2004 |
| 6776926 | Calcium hypochlorite of reduced reactivity The present invention is drawn to a solid calcium hypochlorite particle having an available chlorine content of at least about 30% by weight and a water content of from about 2% to about 20% by weight; wherein said solid calcium hypochlorite particle is coated with ... | 08/17/2004 |
| 6763846 | Fluid distribution device An apparatus and method for distributing a fluid. A fluid distribution device includes a flow chamber comprising an inlet and an outlet, an equalization chamber; and a diaphragm separating the flow chamber and the equalization chamber, wherein a valve positioned in ... | 07/20/2004 |
| 6736275 | Flocculating energy dissipating well arrangement (FEDWA) The clarifier of the present invention includes a tank, an influent pier, and a FEDWA. The tank that includes a bottom and a wall. The influent pier projects upwardly from the bottom of the tank along an axis. The influent pier includes ports that direct flow of the... | 05/18/2004 |
| 6716359 | Enhanced time-based proportional control The instant invention is a device and method for its use which includes the addition of a deviation compensation function effective to automatically adjust the offset used in time-based proportional control. Inclusion of this improvement finds particular utility in ... | 04/06/2004 |
| 6709578 | Tilt-out frame for a filter screen A filter screen that is used in filtering water and that includes a frame and a grid assembly that is supported by the frame for movement. The grid assembly includes a continuous unbroken drive chain having a guide link, and a screen panel. The screen panel is coupl... | 03/23/2004 |
| 6263900 | Low capacity chlorine gas feed system A gas feed system for supplying a gas such as chlorine to a water system for chlorinating the water. The gas feed system includes multiple containers and provides for automatic switch over from one container to a second container once the first container ... | 07/24/2001 |
