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| Number | Title | Issue Date |
| 7378027 | Multilayer energy dissipating inlet column in center-feed clarifiers The Multilayer Energy Dissipating Inlet Column (MEDIC) in a center-feed clarifier consists of a plurality of perforated and concentric columns and a circular cover, which closes the bottom of the multilayer column. In the wall of each perforated column many flow inl... | 05/27/2008 |
| 7198718 | Coalescer A two phase liquid media coalescer comprises a chamber such as a pipe (1) which may be fitted into a process system by way of pressure sealable fittings (23, 24). Contained within the chamber is a coalescer media (5) manufactured from fibers of ... | 04/03/2007 |
| 6900029 | Method of selection of a population or subpopulation of a sample utilizing particles and gravity sedimentation A separation procedure for separating a selected desired or undesired population from a biological sample utilizing relatively heavy, dense particles and gravity sedimentation. The particles have one or more reactants bound thereto which are specific to and will bin... | 05/31/2005 |
| 6660162 | Separator for liquid suspension There is described a liquid treatment installation including a tank which defines a substantially vertical flow channel of circular cross section. Disposed coaxially in the flow channel there is a spiral separator plate pack 20 which comprises one or more... | 12/09/2003 |
| 6547080 | Collapsible colander for straining and rinsing Colander apparatus for straining and rinsing including a first rim portion and a second rim portion hingedly movable about an axis between a generally coplanar position and a collapsed or folded position wherein the rim portions are generally parallel or ... | 04/15/2003 |
| 6475383 | Rotating chemical distribution cleaning system for weirs A means for controlling/eliminating algae or other biological growth in the weir of a clarifier of waste water.... | 11/05/2002 |
| 6343698 | Seismic protection system for a clarifier feedwell in a wastewater treatment system A clarifier feedwell having a seismic protection system. The clarifier feedwell includes a feedwell frame and at least one pressure relief door which is slidably inserted into the feedwell frame. The pressure relief door includes a supporting frame, the s... | 02/05/2002 |
| 6341667 | Arrangement in a circulation lubrication system An arrangement in a circulation lubrication system includes a lubricating oil tank, pressure pipe lines for supplying oil to parts that are to be lubricated, return pipe lines for returning the oil from the parts that are to be lubricated to the oil tank,... | 01/29/2002 |
| 6334952 | Coagulating sedimentation apparatus A sedimentation apparatus for precipitating and separating suspended solids and coagulated flocs in a liquid to be treated, so as to clarify the liquid. The sedimentation apparatus comprises a mixing chamber secured within a sedimentation tank, for mixing... | 01/01/2002 |
| 6197190 | Tapered flocculation water treatment Described herein is an improved water treatment process for separating particulate contaminants from raw water. The process is performed by introducing, into a single tank, raw water injected with a coagulating agent for neutralizing charges on the partic... | 03/06/2001 |
| 5672268 | Fluid treatment apparatus Fluid treatment apparatus including a vessel having a fluid inlet port, a fluid outlet port and a deflector plate and containing a medium and an inlet having an inlet end in flow communication with the fluid inlet port and a discharge end providing an inc... | 09/30/1997 |
| 5601711 | Selective separation filter device A filter device or apparatus is provided for the separation of materials, especially biomaterials from a fluid sample, under a force such as centrifugation, positive pressure, vacuum, or gravity. The device comprises two or more in-line tubular elements, ... | 02/11/1997 |
| 5478468 | Coagulating sedimentation processing apparatus A coagulating sedimentation processing apparatus comprising a sedimentation tank, a mixing chamber rotatably supported within the sedimentation tank, means for supplying suspension and additive to the mixing chamber, a mixer arranged within the mixing cha... | 12/26/1995 |
| 5421949 | Apparatus for applying signature stripes to identity cards The invention relates to a method and an apparatus for applying flat punched elements in the desired position to the surface of a carrier material, the elements being present in multiple copies on a sheet. The multiple copies are fed to an applying device... | 06/06/1995 |
| 5415771 | High capacity single tank water clarification system Raw feed water is continuously clarified at a large throughput rate in a single, shallow tank using a flotation process carried out simultaneously in multiple sectors of the tank. Raw water feeds into a rotating trough. A fixed manifold system in the trou... | 05/16/1995 |
| 5389249 | Clarifier with rotating sealed cover A clarifier comprising a tank, a feedwell, a cover and a raking structure. The cover is rotatably and sealingly engaged with the tank so as to prevent foul air within the tank from escaping into the atmosphere. The feed well and the raking structure are s... | 02/14/1995 |
| 5362407 | Circular gravity clarifier and method Disclosed is a circular gravity clarifier for and method of clarifying liquids of entrained liquid droplets and solids. The clarifier has an upright cylindrical body, a cylindrical baffle extending substantially the depth of the body forming an annular fl... | 11/08/1994 |
| 5343635 | Increased capacity disc dryer An improved disc dryer for aggregate material which operates by rotating and impacting a tilted pan which holds the material being dried. Increased capacity is attained by transverse stabilizers on the impactor assembly, adjustable pressure air shock moun... | 09/06/1994 |
| 5340485 | Apparatus and method for clarifier sludge collection A sludge removal apparatus for a clarifier/thickener tank includes a central rotatable or stationary sealed sludge collection box submerged in the tank and surrounding a vertical, central influent column or support shaft. The collection box is positioned ... | 08/23/1994 |
| 5271832 | Activation plant with funnel-shaped secondary sedimentation An activation plant for the treatment of waste water by the activated sludge method is disclosed wherein the plant has an outer, annular activation tank, a concentric, inner, funnel shaped secondary sedimentation tank, and a rotating aeration bridge rotat... | 12/21/1993 |
| 5219470 | Apparatus and method for clarifier sludge collection A sludge removal apparatus for a clarifier tank includes a rotatable or stationary sealed sludge collection box submerged in the tank and surrounding a vertical, central influent column. The collection box is positioned at any elevation between the tank b... | 06/15/1993 |
| 5139662 | Apparatus for clarifying water An apparatus for clarifying water. The apparatus includes a mixing chamber for mixing the water to be clarified with pressurized water and air to obtain a mixture in which particles attached to air bubbles are suspended. The mixing chamber is connected to... | 08/18/1992 |
| 5050997 | Mixer-settler for liquid-liquid extraction A mixer-settler for liquid-liquid extraction has a casing having a first partition arranged lengthwise of its longitudinal axis above a discharge weir. A stirring device is connected to at least an arrangement for feeding one of the phases, and is fashion... | 09/24/1991 |
| 5006260 | Coalescer device and method using movable filling The invention relates to a process and an apparatus for the separation of a dispersed phase in emulsion or in suspension in a continuous phase of a different density. The process comprises causing the emulsion to circulate in a coalescing enclosure (1) co... | 04/09/1991 |
| 4975189 | Cleaning sprays for disc filters In rotating disc filters used for example in the pulp and paper industry, one or more spray elements are positioned between adjacent discs to rotate about an axis parallel to the disc axis. This arrangement achieves greater washing coverage of the discs t... | 12/04/1990 |
| 4948518 | Method of separating a suspension of activated sludge and sewage water A sedimentation tank for separating activated sludge from a suspension of activated sludge and sewage water, with an intake (11) for the suspension, an outlet (3) for the activated sludge at the conical bottom, and a discharge (4) at the top for the sewag... | 08/14/1990 |
| 4931175 | Water clarifying apparatus Water clarifying apparatus has a cylindrical tank where particulate contaminants suspended in raw water are separated using flotation techniques. A set of concentric mutually spaced, conical plates are positioned in the flotation tank. The plates rotate a... | 06/05/1990 |
| 4923600 | Water clarification system adapted for removing particulate matter of greater than a predetermined size Apparatus adapted for use in a water clarification system which removes particles of greater than a predetermined size from the clarified water includes a screen or a pair of concentric screens positioned in a clarified water storage area between an inlet... | 05/08/1990 |
| 4816167 | Portable system for dewatering contents of sanitary sewer traps A vehicle for collecting and dewatering the contents of sanitary sewer traps. The vehicle includes a frame and an elongated tank mounted on the frame with the tank having a rearward end and a forward end. The frame includes a mechanism for elevating the f... | 03/28/1989 |
| 4789477 | Arrangement for charging granular or pulp-like material to a container in which the material is processed The invention relates to an arrangement for charging granular or pulp-like material to a container of relatively large cross-sectional area with the aid of a conveyor, in a manner to maintain a constant, smooth level of material in the container. The arra... | 12/06/1988 |
| 4784764 | Arrangement for the flocculation of flocculatable substances in suspensions, particularly for the purification of the backwater of deinking installations for waste paper processing An arrangement for separation by flocculation of flocculable substances contained in a suspension, as such is used particularly for purifying the backwater of deinking installations for waste paper processing, comprises a container supplied by a conduit w... | 11/15/1988 |
| 4759913 | Recovery of liquid phases from three phase emulsions formed in solvent extraction processes A process for the recovery of an organic phase and an aqueous phase from three phase emulsions such as those formed during the extraction of uranium from wet phosphoric acid is described. Such emulsions contain a light-density liquid phase and a heavy-den... | 07/26/1988 |
| 4650582 | Apparatus for consistency control of manufactured tomato pulp This invention provides a rotating drum screening apparatus for continuously and controllably separating a tomato macerate into a reduced insoluble solids pulp fraction and an insoluble solids-enhanced pulp fraction, the rotating drum screening apparatus ... | 03/17/1987 |
| 4640781 | Expandable fibrous bed coalescer An apparatus for treating liquid, such as for coalescing and separating finely dispersed oil droplets from an oil/water emulsion, which includes a cluster of fibers arranged in a housing, wherein the cluster of fibers can be displaced stepwise into and fr... | 02/03/1987 |
| 4490260 | Mechanical conditioning and flocculation of liquids This invention relates to flocculation apparatus for the purification of liquids, particularly water, wherein provision is made for initial vigorous mixing of the coagulants in the liquid followed by a gradually diminishing agitation of the liquid and flo... | 12/25/1984 |
| 4401568 | Apparatus for processing flushing liquor from coke ovens A coke oven flushing liquor decanter apparatus that has a vertically elongated vessel that has a variable cross-sectional dimension so as to separate the flushing liquor into a lower liquid phase and an upper liquid phase. A vertical tube extends downward... | 08/30/1983 |
| 4367141 | Apparatus for the concentration of sludges and suspensions The apparatus is suitably disposed within a circular tank and comprises a stationary bridge, a feeding bell, a scraper, driving means, and an optional foam scraping means. The apparatus is characterized in that it has a centrally suspended rotating scrape... | 01/04/1983 |
| 4311590 | Phase separation apparatus A phase separation apparatus is provided for effecting phase separation of two immiscible liquids. The apparatus comprises an inner rotatable tube the bottom end of which is charged axially with the two liquids, and an outer tube which forms an outer cham... | 01/19/1982 |
| 4303517 | Liquid treatment apparatus The apparatus includes a tank of steel, or concrete, into which the liquid to be treated is introduced vertically through a centrally located inlet at the tank bottom. Disposed inside the tank, above said inlet, are a tubular venturi-type eductor member a... | 12/01/1981 |
| 4279747 | Rapid continuous clarifier Apparatus for clarifying the liquid portion of a slurry such as preflocculated sugar juice is disclosed. A tank is provided, and a downwardly opening conical tray is located within the tank to divide the tank into upper and lower portions. The outer perip... | 07/21/1981 |
