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| Number | Title | Issue Date |
| 7360655 | Material handling system having a scoop wheel A material handling system is provided. The material handling system includes a tank defining a reservoir for receiving a solid material, and a wheel including a plurality of circumferentially spaced apart scoops for scooping solid material from the tank and subsequ... | 04/22/2008 |
| 7347933 | Self-cleaning intake screen A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability is accomplished by using a fixed brush on the exterior surface of the... | 03/25/2008 |
| 7288186 | Filtrate immersed activation assembly for disk filters A self cleaning filtration device wherein an activation piston, laterally supported within an activation cylinder is immersed in filtrate within the confines of an immersion chamber. The immersion chamber receives filtrate from a disk filtration stack via orifices a... | 10/30/2007 |
| 7186281 | Dust-removing device for the dust-collecting tank of a dust-collecting machine A dust-removing device for the dust-collecting tank of a dust-collecting machine includes a guide frame installed inside the dust collecting tank and having a central guide rod for a brush base to move up and down thereon. The brush base has its outer circumferentia... | 03/06/2007 |
| 7083735 | High debris content strainer A high debris content strainer that utilizes a cylindrically-shaped screen having four removal assemblies positioned evenly around the screen periphery. Each removal assembly includes a backwash spray bar on the downstream side of the screen and a scraper/brush and ... | 08/01/2006 |
| 7083729 | Device and method for cleaning a fluid, such as water A device for cleaning a fluid comprises at least one set of a first membrane cloth and a second membrane cloth, each being permeable to water over substantially their entire length. The membrane cloths are held taut, substantially parallel to one another in a frame ... | 08/01/2006 |
| 7055699 | Self-cleaning mechanical filter A self-cleaning mechanical filter comprises a mechanism for simultaneously cleaning the internal surface and the external surface of a filter element. The filter is provided with structure for performing suction scanning of solid materials accumulated on the interna... | 06/06/2006 |
| 7037437 | Dual filter system for filtering of injector fluids A filtering system used on a meat injection machine that injects pickling into meat products. The filter consists of a tank and a first and second rotary filter. The first rotary filter uses a wedge wire wound cylinder and augers having flutes that rotate to catch a... | 05/02/2006 |
| 7029579 | System for solid-liquid separation A system for use in filtering a slurry using air pressure to squeeze the slurry material and dewatering it. The system including a source of slurry, a chamber, a filter belt that passes through the chamber, a manifold inlet supplying the slurry to a first side of th... | 04/18/2006 |
| 7014764 | Device for receiving and separating chips created by machine-tools and coolant (sealant) A device for receiving and separating chips and coolant collecting on machine tools, having a filter drum (12) that has an internal bearing ring (13) on each of its two ends, which each engage in an external bearing ring (16) so that they rotate... | 03/21/2006 |
| 7001506 | Self-cleaning circulatin system and method The present invention provides a system and method for providing a self-cleaning water circulation system which may be utilized for a fish pond, fountain, or the like. Means for automatically cleaning the pump intake to avoid pump failure due to leaves and debris is... | 02/21/2006 |
| 7001515 | Dual filter system for filtering of injector fluids A filtering system used on a meat injection machine that injects pickling into meat products. The filter consists of a tank and a first and second rotary filter. The first rotary filter uses a wedge wire wound cylinder and augers having flutes that rotate to catch a... | 02/21/2006 |
| 7001505 | Slurry monitoring system A slurry monitoring system is provided. A filter encompasses a filter chamber containing a purge piston. During a monitor operation, the purge piston is retracted, and slurry enters the filter chamber through the filter, then passes into an outlet pipe, where a char... | 02/21/2006 |
| 6991738 | Flow-through drum centrifuge A process includes coating a cylinder having an inner wall and a cylinder axis with a gel coating on the inner wall. Then a specimen mixture including solvent is made to flow through the cylinder while the cylinder is being continuously rotated. The specimen mixture... | 01/31/2006 |
| 6942786 | Cleaning device for waste water Cleaning device having an endless filtering belt (31) guided through a waste water container (33) for filtering of waste water. The filtering belt is guided over a series turn rollers (32, 34, 36, 37) so that the belt in a certain region runs su... | 09/13/2005 |
| 6808076 | Self-cleaning drum filter Self-cleaning drum filter comprising a pressure vessel (11) containing a cylindrical filtering drum (15) to whose outside curved surface a filtering mat (57) is juxtaposed, provided with means for removal of the cake collected on the outside of ... | 10/26/2004 |
| 6739458 | Device for dehydrating sludge The invention is relative to a device for dehydrating sludge such as occurs in sewage treatment plants in the form of dilute sludge. The receptacle for the sludge contains a sieve surface comprising openings for the passage of liquid. The sieve surface, for its part... | 05/25/2004 |
| 6730219 | Filter for liquid products The filter has a framework with an inlet end, a solids outlet end and an outlet for a separated product between the ends. A fabric filter extends in the framework from end to end and is supported by movable rings, resilient members and dampers enabling axial extensi... | 05/04/2004 |
| 6666976 | Self cleaning water filter A self-cleaning water filter, coupled to a water flow having particulates therein, that includes a pair of canisters, each having a cylindrical wedge wire water filter screen. An elongated brush running the length of the screen is disposed between two con... | 12/23/2003 |
| 6581783 | Fine solids separator A fine solids separator 10 including a hollow housing 12 having a generally cylindrical wall 11. Located within the housing 12 is a cylindrical screen member 15 that is preferably formed of expanded metal mesh. The screen member 15 encloses a chamber 22 t... | 06/24/2003 |
| 6543624 | Back-washable filter for liquids The aim of the invention is to improve the backwashing action of a backwashable filter for liquids comprising the following: a filter body which is located in a housing and which separates an incoming flow chamber from an outgoing flow chamber and a backw... | 04/08/2003 |
| 6488849 | Rotating device for continuously filtering a liquid such as a solution containing a precipitate The present invention relates to a rotating device for continuously filtering a liquid such as a solution containing a precipitate. According to this invention, the device comprises a cylindrical, horizontal-axis drum of revolution, rotated by a drive system, ... | 12/03/2002 |
| 6419094 | Fixed sequential sprayer for a cylindrical wastewater screen An apparatus for cleaning a rotating cylindrical wastewater screen of the type formed of tubular perforate wedgewire. The apparatus includes a frame, a rotatable cylindrical screen carried by the frame and having an axis of rotation and which is defined b... | 07/16/2002 |
| 6398038 | Filtration system utilizing a vortex mechanical power filter A vortex mechanical power filter includes a filter unit 12 arranged within a vortex tank 10 such that water to be filtered, e.g. flowing from a from a fish pond via gravity supply line 22, impinges upon a side of the filter unit at an angle to cause rotat... | 06/04/2002 |
| 6354442 | Filter with counter flow clearing A filter system (10) comprising a filter medium (11) for filtering contaminants from a process fluid, having a filtration side on which contaminants collect and a filtrate side from which filtrate flows; a counter-flow generator (20) located on the filtra... | 03/12/2002 |
| 6241879 | Filtering machine and filter cloth therefor A filter cloth comprising at least a base layer and a filtering layer, characterized in that the ratio T/L of the thickness (T) of the filtering layer to the length (L) of fibers of fiber bundles constituting the filtering layer is 0.02 to 0.7 and the sum... | 06/05/2001 |
| 6231764 | Septic tank pump arrangement including a self-cleaning rotary strainer A system for pumping effluent out of a septic tank contains an electric pump unit disposed coaxially within a tube. A rotary self-cleaning strainer has a cylindrical filter screen that filters certain solid material from the effluent flow through the tube... | 05/15/2001 |
| 6227379 | Rotary separator apparatus and method A method and apparatus for efficiently separating solids from liquid/solid slurries are disclosed. The slurry to be separated is retainably placed within a container having one or more lift paddles secured within its inner cavity. The container is support... | 05/08/2001 |
| 6189703 | Endless media filtration system An endless media filtration system includes a housing with a pool forming assembly mounted between a pair of side walls. The pool forming assembly includes a central shaft with two spaced-apart containment discs rotatably mounted on the shaft between the ... | 02/20/2001 |
| 6187177 | Industrial filter A filter unit for filtering pressurized liquid carrying solid contaminants, comprising a housing having a cavity, an unfiltered liquid inlet port, and a filtered liquid outlet port. The filter unit also has a filter element having a generally cylindrical ... | 02/13/2001 |
| 6186340 | Cylindrical drum filter having two parallel circular circumferentially spaced support rods A drum filter comprises a pair of circular disks connected in coaxial relation by a plurality of axially extending disc support rods. A cylindrical filter media is disposed between the disc support rods. Unfiltered liquid is admitted to the interior of th... | 02/13/2001 |
| 6182833 | Reciprocating sprayer for a cylindrical wastewater screen A reciprocating power sprayer for cleaning a rotating cylindrical wastewater screen of the type formed of tubular perforate wedgewire. The spray is reciprocated on an elongated pneumatic cylinder which is arranged in parallelism along the cylinder wastewa... | 02/06/2001 |
| 6177022 | Self-cleaning fuel oil strainer A self-cleaning fuel oil strainer, coupled to a continuous fuel flow, that includes a pair of canisters, each having a cylindrical wedge wire fuel oil filter screen. An elongated brush running the length of the screen is disposed between two confining wal... | 01/23/2001 |
| 6042726 | Apparatus for filtering industrial liquids A filtration apparatus designed to remove solid contaminants from a liquid includes an endless filtration belt located in a liquid tank, so that liquid flows through minute openings in the belt into a liquid collection box located within the belt envelope... | 03/28/2000 |
| 6015490 | Carrier-separating and water-collecting mechanism of wastewater treatment equipment A carrier-separating and liquid-collecting mechanism in a liquid-waste treatment apparatus having a treatment tank in which carriers having microorganisms immobilized thereon are suspended. The carrier-separating and liquid-collecting mechanism includes a... | 01/18/2000 |
| 5993652 | Self-cleaning strainer having rotating strainer frame assembly journaled on central core by sets of wheels A novel all-wheel journaling of the rotary portion of a rotary self-cleaning strainer on a stationary central core. Respective sets of circumferentially spaced wheels are provided on respective end closures of the rotary portion that close opposite axial ... | 11/30/1999 |
| 5993651 | Water influent particle removing apparatus An endless screen lifts fecal matter and sewer influent debris from an influent channel. The endless screen is powered by an externally positioned air cylinder driving a pawl and rachet to move the screen in an elliptical path. A tank positioned below a t... | 11/30/1999 |
| 5975311 | Filter to be inserted into a pipe and heat exchanger equipped with a filter of this kind A filter includes, in a filter body, a filter unit in the general form of a wheel with, for local contraflow circulation of a cleaning fluid through its filter element, a circulation unit to which a pipe is connected. The pipe is an inlet pipe of the clea... | 11/02/1999 |
| 5928508 | Method and apparatus for separating a medium into a solids-containing component and a liquid component A medium is separated into a solids-containing component and a liquid component. The latter flows through a filter. Clogging of the filter is avoided in that the latter is moved relative to the medium perpendicularly to the flow direction of the liquid th... | 07/27/1999 |
| 5910249 | Method and apparatus for recovering water from a sewer main A process and apparaus for recovery water from raw sewage extracted directly from the sewer including a screen(2) operable to obtain from raw sewage a screened effluent having a maximum particle size of no more than 900 microns. The apparatus also compris... | 06/08/1999 |