Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7556158 | Drainage management systems and methods A flow limiting inlet structure is designed to collect water or other fluids in a pool above grade, and to provide improved capture of sediments and surface pollutants such as oils and greases in the pool, while regulating the flow of water or other fluids during di... | 07/07/2009 |
| 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 |
| 7431851 | Fat separator The present invention provides a fat separator device having a container with a spout portion and a cover portion releasably attached to the container. The cover portion including a surface having at least one aperture to allow for passage of a liquid through the co... | 10/07/2008 |
| 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 |
| 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 |
| 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 |
| 7364664 | Foreign matter removing mechanism, fluid flow processing equipment, and foreign matter removing method The present processing apparatus blocks off such a portion of a flow of a plating solution (17) that is other than a vicinity of a liquid surface, by using a first partition plate (15) whose lower end is in close contact with a bottom of a plating tank... | 04/29/2008 |
| 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 |
| 7340717 | Method for providing enhanced dynamic system simulation capability outside the original modeling environment A method for generating a software model of a dynamic system takes as input a preliminary software model of the system. Normally, the preliminary software model is based on a system model that is generated by a system designer within a modeling environment. Generall... | 03/04/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7278543 | Device for separating multi-phase fluids A device in connection with a separator for separation of a multiphase fluid, including a preferably cylindrical container (1) with an inlet (2), a first outlet (3) for liquid with a higher gravity (for example water), a second outlet (4)... | 10/09/2007 |
| 7273548 | Fluid filter A fluid filter, which is adapted for separating a less dense fluid floating on a high dense fluid, includes at least a fluid filtering arrangement including a floating wing adapted for floating on the less dense fluid and at least a fluid outlet formed on the floati... | 09/25/2007 |
| 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 |
| 7223332 | Reactor and process for mercaptan oxidation and separation in the same vessel The present invention is an apparatus and process for oxidizing mercaptans in a preferably kerosene stream. By using a catalyst promoter, sufficient separation of hydrocarbon and aqueous alkali occurs in the reactor vessel to obviate the need for a settling tank. He... | 05/29/2007 |
| 7186346 | Low cost indoor grease trap An oil/grease removal assembly includes a container having an inlet to receive effluent from a kitchen sink. A drain connection spaced above the container bottom defines a static water level for contained liquid and connects to a sewer. A baffle extends downwardly b... | 03/06/2007 |
| 7182874 | Storm water treatment apparatus employing dual vortex separators A stormwater treatment device for removing floatables, solids and suspended particles and the like from stormwater run off, whereby a removable assembly is provided for installation into a manhole basin, the assembly including a pass-through member which receives st... | 02/27/2007 |
| 7172688 | Mixed immiscible liquids vacuum, separation, and disposal method and system (Mod 1) A system to collect by vacuum conveyance, separate, and discharge two mixed immiscible liquids with different specific gravities comprising a prefilter vessel 200, a vacuum tank 100, an optional heavy phase intermediate separation stage 40, and ... | 02/06/2007 |
| 7163107 | Oil/water separator with enhanced in-situ cleaning In-situ cleaning of the bilgewater processing plates of stacks within a treatment tank chamber of a 50-gpm oil/water separator is performed by an injected chemical cleaning agent dispersed by diverted flow of pressurized air introduced into the tank chamber below th... | 01/16/2007 |
| 7163624 | Electrostatic separator An electrostatic separator intended for separation of liquid phase systems, made up of mixtures of liquids of various electrical permittivity. In particular, the separator is intended for separation of an oil-and-water emulsion. The electrostatic separator contains ... | 01/16/2007 |
| 7105086 | Storm drain capture and containment device A storm drain system (10) contained in the ground (36) contains a standpipe (12) having a bottom section (18) having perforations (20) where a porous pavement (22) surrounds the top portion of the standpipe (12), wher... | 09/12/2006 |
| 7067064 | Decanting device for use on vessels with spill rails A device for separating water immiscible hydrocarbons from water contained on vessel decks by spill rails with at least one scupper comprises a rigid liquid impermeable body adapted to be attached on the inside of a spill rail at a scupper and which defines with the... | 06/27/2006 |
| 7060179 | Sanitation barrier for oil/grease separator in a kitchen An apparatus for enhancing sanitation in a kitchen equipped with an oil/grease separator includes a barrier made of two vertical portions connected by a horizontal portion to bound a volume between the oil/grease separator and a kitchen wall and prevent the ingress ... | 06/13/2006 |
| 7044308 | Apparatus for the removal of suspended solids and entrained oil from an aqueous solution An apparatus for the removal of suspended solids and entrained oil from an aqueous solution is disclosed. The apparatus comprises a vessel having a top, bottom, side walls and end walls, with a flow inlet aperture at an upstream end and a flow outlet aperture at a d... | 05/16/2006 |
| 7033496 | Water clarification system with weir A casing surrounds a horizontal axis to define a cavity. The cavity has a top, a bottom, and axially front and rear ends. The casing is configured to conduct a mixture of a liquid and debris through the cavity from the front end to the rear end. Front and rear walls... | 04/25/2006 |
| 7029585 | Grease trap The grease trap is a device that may be attached to the drainpipe of a sink and the outlet pipe of a plumbing system to remove grease from wastewater before it enters the plumbing system. The device uses simple principles of gravity and separation of immiscible liqu... | 04/18/2006 |
| 7022243 | Apparatus for treating storm water A separation tank having an inlet and an outlet and forming a low flow path and a high flow path, both conveying water from the inlet to the outlet. At normal, low flows, the water enters the inlet and passes through the low flow path having treatment chambers to re... | 04/04/2006 |
| 7021471 | Diffuser for an oil water separator system An oil-water separator system diffusing chamber having a diffuser and a baffle with uptake control means. The diffuser includes an attachment portion and a lower portion, with the attachment portion being secured to inlet conduit of the separator system, and with th... | 04/04/2006 |
| 7018528 | Portable purifying system A portable purifying system for improved filtering and/or separating of cleaning solutions such as solvents, particularly those used in parts washers. The purifying system utilizes a removable reservoir to provide a smaller reservoir within a larger reservoir such a... | 03/28/2006 |
| 7014779 | Vacuum separation, transport and collection system for immiscible liquids A vacuum separation, transport and collection system for immiscible liquids includes a separator (12) for separating two immiscible liquids such as oil and a water-based coolant, and for directing the separated immiscible liquid into a holder (16). A c... | 03/21/2006 |
| 7011752 | Wastewater separator and method of using same A wastewater separator to separate waste from a mixed wastewater stream including one or more of heavy waste, light waste and water. The wastewater separator comprises a separation container, a inlet and an outlet. The separation container comprises (1) a wastewater... | 03/14/2006 |
| 7001514 | Septic tank A septic tank includes a chamber, an inlet through which waste water enters the chamber, an outlet located below the inlet, and an outlet pipe including an outlet section extending through the outlet. The outlet pipe further includes an inclined section in the chamb... | 02/21/2006 |
