Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7971732 | Grit trap for waste water system A grit removal unit for a waste water system, including a round grit removal chamber with an input for waste water and an output, a grit storage chamber beneath the grit removal chamber, and an opening between the grit storage chamber and the grit removal chamber. A... | 07/05/2011 |
| 7951294 | Oil and debris separator A hood for mounting over an outlet in a wall of a catch basin is disclosed. The hood includes a hood wall that forms a prow in a horizontal plane. The prow extends along an axis of the hood thereby achieving optimal flow conditions in the catch basin. In some embodi... | 05/31/2011 |
| 7896170 | Flow divider and separation system The present invention relates to a flow divider promoting separation, the flow divider comprising an inlet, at least one dividing fin, and two or more outlets. According to the present invention a pipeline leading to the inlet is sufficiently long to promote at leas... | 03/01/2011 |
| 7731037 | Separating sand from fluids produced by a well A settling system may be used to separate and/or remove solid particles, such as sand, from fluids produced by wells. The container of the settling system may be cleaned without need for manned-entry. ... | 06/08/2010 |
| 7476318 | Drilling mud tank A mud tank for processing drilling mud during drilling operations wherein the interior of the mud tank has sloping walls to guide sinking aggregate toward a sand trap disposed at the point of convergence thereof. The sand trap is comprised of the convergences area o... | 01/13/2009 |
| 7438803 | Disposable weir liner A garnet settling/filtration system for use with a plurality of machine tools such as a water jet cutting machine is described. The garnet settling/filtration system comprises a settling tank, which utilizes a removable, disposable settling weir, which is received t... | 10/21/2008 |
| 7438808 | Sand catcher The invention relates to a sand catcher comprising a deposition chamber (1) that is configured as a steel container with a cylindrical cross-section, traversed in a longitudinal direction. Said deposition chamber comprises air-supply nozzles (4) on one... | 10/21/2008 |
| 7431852 | Oil/grease separator with interchangeable inlet and outlet A separator separates water and oil. An outer housing has an inner volume and an inner housing. One port in the inner housing receives influent mixed liquids. Another port from the inner housing discharges water outside the outer housing and defines a static liquid ... | 10/07/2008 |
| 7429332 | Separating constituents of a fluid mixture A device for separating constituents of a fluid mixture includes an elongate vessel oriented at an acute angle to horizontal. The vessel is operable to receive the fluid mixture and direct the fluid mixture to flow in a convection cell spanning substantially a lengt... | 09/30/2008 |
| 7427356 | Fats, oil and grease interceptor The present invention comprises a gravity draining automatic FOG interceptor with solids removal capability used as a first stage in the treatment of gray water. A preferred embodiment comprises a multi compartment container, the compartments separated by baffles, h... | 09/23/2008 |
| 7422683 | Vortex separator for separating floating and settling substances from centrally inflowing storm-water Disclosed herein is a vortex separator for separating floating and settling substances from storm-water. The vortex separator of the present invention can separate fine settling substances as well as coarse settling substances, floating substances and oil from storm... | 09/09/2008 |
| 7410584 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a stream comprising mixed liquor suspended solids and fixed growth solids to a high rate clarification stage, forming a clarifier effluent, a first wast... | 08/12/2008 |
| 7401704 | Conveyor apparatus A conveyor apparatus for conveying solid material in a process vessel includes, a first baffle set comprising a plurality of inclined baffles located above the eductors and arranged to restrict upward flow of solids in the direction of movement of the solids. A seco... | 07/22/2008 |
| 7390420 | Method and equipment for compressing a dispersion in liquid-liquid extraction The invention relates to a method for controlling and compressing a dispersion formed in the mixing stage of liquid-liquid extraction. The compression of the dispersion is achieved by reducing the cross-section of the separation section in the direction of flow and ... | 06/24/2008 |
| 7384551 | Trapezoid settler apparatus and method for solvent extraction An embodiment of the invention includes a trapezoid settler having a longitudinal axis, a base, a first side wall oriented at an angle to the longitudinal axis, a second side wall opposing the first side wall and oriented at an angle to the longitudinal axis, and a ... | 06/10/2008 |
| 7383958 | Desanding apparatus and system A desanding vessel is inserted in a high velocity fluid stream containing entrained particulates. The vessel comprises an upper freeboard portion having a large cross-sectional wherein the fluid stream velocity drops and particulates fall from suspension. Preferably... | 06/10/2008 |
| 7367459 | Passive grease trap using separator technology A grease trap for separating grease and solid waste from waste water. The grease trap includes a tank having a downwardly shaped bottom. An upwardly shaped divider divides the tank into an upper chamber and a lower chamber. A hole near an upper part of the divider a... | 05/06/2008 |
| 7357860 | Skimmer system A skimmer system composed of a base and a slidable float assembly. The base has a base chamber defined by a sidewall, an endwall, and a conduit having an intake communicating with the base chamber. The float assembly has a float chamber defined by an outer float wal... | 04/15/2008 |
| 7334689 | Overflow launder An overflow launder for a separation cell where particles are fluidiZEd and rise to the top of the cell, has a primary trough (1) surrounding the rim of the cell (2), and an array of secondary troughs (4) extending across the fluid surface from ... | 02/26/2008 |
| 7331472 | Method and apparatus for separation of a mixture of non-miscible liquids A tank has an inlet opening mounted at an end wall at the beginning of an elongated horizontal path for supplying a mixture to be separated, and two outlet openings mounted at the end of the elongated horizontal path for separately draining the separated liquids. An... | 02/19/2008 |
| 7328809 | Solvent extraction method and apparatus A weir assembly for use with a mixer-settler for liquid-liquid extraction includes in one embodiment an organic weir having an inlet opening below the free surface of the organic phase liquid and a vertically-adjustable front wall allowing adjustments in the positio... | 02/12/2008 |
| 7314549 | Storm water interceptor A storm water interceptor comprises an input conduit connected to a first treatment tank for delivering storm water to the first treatment tank and having an obvert elevation. Also, the interceptor comprises a lower conduit having an invert elevation, a substantiall... | 01/01/2008 |
| 7311818 | Water separation unit A water separation unit having an inner housing for storm water collection, separation of oils and debris from the storm water, and discharge of clean water. The inner housing is suspended inside an outer housing. The inner housing has a translatable floor with a pl... | 12/25/2007 |
| 7303085 | Method and apparatus for purifying mixtures of oil and water An apparatus and method for separating oil and particulate contaminants from pump-driven aqueous fluid contaminated with emulsified oils, free oils, particulate matter, suspended solids, and other contaminants in which the contaminated fluids are introduced into a c... | 12/04/2007 |
| 7300575 | Portable filter system A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-base... | 11/27/2007 |
| 7296693 | Anaerobic sludge digester A method is provided for introducing a fresh sludge flux whose concentration in terms of dry material is less than 40 g/l into the upstream part of digester, maintaining a thin sludge layer in the digester, circulating substantially horizontally effluents above and ... | 11/20/2007 |
| 7297266 | Apparatus for separating particulates from a fluid stream A screen apparatus for improved separation of particulates from a fluid stream. The screen is configured and arranged to filter relatively large particulates from the fluid stream as the fluid stream passes from a storage chamber of the tank to a tank outlet. The sc... | 11/20/2007 |
| 7294256 | Storm water filter system A storm water filter system for filtering storm water being fed into an in-ground well includes a housing having an inlet and an outlet, with the outlet being connected to an in-ground recharge well. A plurality of open chambers are formed in the housing. An inlet f... | 11/13/2007 |
| 7291262 | Road surface waste water treatment device and tubular water treatment unit The invention provides a runoff water purification system for removing pollutants which accumulate on road surfaces, thereby reducing the workload of the sewage water treatment plants and preventing environmental water pollution. The system 1 is installed und... | 11/06/2007 |
| 7291277 | Method and device for cleaning the fountain solution of a printing press A method for cleaning the fountain solution of a printing press with an automatically emptying separator (16), separates the dirt particles and oil residues from fountain solution and supplies them, as a mixture of dirt and fountain solution, to a dirt and fo... | 11/06/2007 |
| 7288188 | Ground water collection system A storm water collection system including a below ground basin and a grate covering the basin. The system also includes a removable water impermeable receptacle disposed within the basin and an inner housing for directing ground water passing through the grate and t... | 10/30/2007 |
| 7287651 | Fuel and water separator A fuel-water separator for diesel engines has a coalescing media and baffle plates through which diesel fuel and water pass upwardly, separation thereof being effected by reducing emulsification of water with fuel, and by passing of heavy particulates to the bottom ... | 10/30/2007 |
| 7285211 | Process and system for separating solids from combined sewer overflows A retention treatment basin system and method 10 that handles an influent of combined wastewater and sewer overflows. The influent includes floatable 12 and settlable solids 14. The basin includes a ceiling 16. The retention treatment bas... | 10/23/2007 |
| 7284670 | Sedimentation removal assembly for flow-through sedimentary tank Solids removal assemblies (14) adapted for use in flow-through or batch-type sedimentation tanks (12) are provided which increase the efficiency of solids removal and eliminate physical scraping devices common with such sedimentation tanks. The preferr... | 10/23/2007 |
| 7285216 | Treatment of water A process for treating sulphide-containing water includes maintaining a steep redox potential gradient in an interface zone of the sulphide-containing water. The water is exposed to an oxygen-containing environment, and the interface zone is located immediately belo... | 10/23/2007 |
| 7282143 | Septic tank A septic tank includes a chamber, an inlet through which waste water enters the chamber, an outlet, and an outlet pipe mounted to the outlet. At least one partitioning member is mounted in the chamber and separates the chamber into at least a first subchamber adjace... | 10/16/2007 |
| 7279100 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a mixed liquor suspended solids to a high rate clarification stage, forming a clarifier effluent, a first waste activated sludge stream, and a return wa... | 10/09/2007 |
| 7276155 | Waste treatment apparatus with integral membrane apparatus A wastewater treatment method and apparatus including a denitrification (anoxic) chamber for denitrifying wastewater, an aeration basin with Bio-Wheel for aerating the wastewater, and a membrane device in which sludge particles are separated out of the wastewater, l... | 10/02/2007 |
| 7267133 | Large scale tubular line kiting system A large scale cleaning plug (L) adaptable to be placed within an interior passageway (10) of a tubular system (14) includes a generally conically shaped element (C) having a first end (18) and an opposite second end (20). The width of the... | 09/11/2007 |
| 7258800 | Electrocoagulation waste water batch tank treatment system A waste water treatment system and process for treating waste water received in a batch tank. The waste water is discharged in a headwork screen for removing large solids in the water. The solids are into a sludge drying bin. The screened water is transferred into a... | 08/21/2007 |
