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| Number | Title | Issue Date |
| 7614503 | Apparatus for separating liquid and solid material from a mixture The present invention relates to a device for separating liquid and solid material from a mixture which includes a filter cloth for allowing through the liquid and holding back the solid material; a carrier belt for supporting the filter cloth with the mixture there... | 11/10/2009 |
| 7381329 | Belt press apparatus and method for high solids capture and high solids content A belt press solid/liquid separation apparatus is provided for separating organic mixtures with substantial amounts of moisture to produce separated solids with solids content of 50-90% while retaining 99% of the incoming solids in the filter cake. Specifically, the... | 06/03/2008 |
| 7334688 | Filtration system and seal assembly A filtration system includes a filter medium that has two side edges. The filter medium is moveable in a longitudinal direction, and at least a segment of the filter medium is used to filter a fluid. Seals are used to seal the filter medium segment's side edges, and... | 02/26/2008 |
| 7326336 | Water intake rotary screen The water intake rotary screen comprises a mobile filter designed as an endless loop formed of a succession of flexible and articulated filter panels. It is associated with a suction system adapted to generate a local contraflow through the filter to take up success... | 02/05/2008 |
| 7314141 | Folding belt filter A belt filter for effecting separation of liquid from solids where, at the collection zone, a filter belt or belts is changed shape so as to provide a supporting shape to bold liquid, which is then fed into a nipping zone. In an embodiment there is a single belt use... | 01/01/2008 |
| 7303685 | Polymer control system A feedback control for a polymer dispensing system, which otherwise continuously adjusts the polymer feedrate so as to keep the measured streaming current of filtrate from a sludge dewatering process at one predetermined setpoint. The feedback control includes a vid... | 12/04/2007 |
| 7252739 | Method for distributing cellulose pulp of low and medium consistency in order to form a uniform pulp web The method is for distributing cellulose pulp that has a 2-12% consistency. A manifoid housing is in fluid communication with distributor housing. The distributor housing has holes that are distributed along a generatrix of the distribution housing. The cellulose pu... | 08/07/2007 |
| 7152745 | Filter bypass monitoring system A method and apparatus for sealing the opposed side edges of a fluid treating belt filter (3) by employing an inflatable elastic tube (18). Opposed sealing surfaces are spaced apart from each other defining a gap there between which can be brought into... | 12/26/2006 |
| 7051882 | Twin-wire belt press A twin-wire belt press is disclosed for dewatering a fiber suspension and forming a continuous web of the fiber suspension. The twin wire belt includes a plurality of upper and lower rolls, a perforated roll and endless upper and lower wire belts. Dewatering tables ... | 05/30/2006 |
| 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 |
| 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 |
| 6612445 | Industrial filter with arrangement for removing machining chips from coolant prior to filtering An arrangement for removing chips from a machining coolant prior to filtering out the finer solids in a main filter. A coarse weave belt is frictionally driven along a strainer bottom wall of an auxiliary tank suspended above the main filter tank, the per... | 09/02/2003 |
| 6561361 | Belt filter press with improved wedge section A belt filter press for deliquifying a material comprises two endless filter belts disposed adjacent each other so that a portion of the belts travel together and converge towards one another in a curved wedge section through which a material is progressi... | 05/13/2003 |
| 6543623 | Belt filter press with winged primary roller A belt filter press for deliquifying a material comprises two endless filter belts disposed adjacent each other so that a portion of the belts travel together and converge towards one another and between which a material is progressively compressed, and a... | 04/08/2003 |
| 6521094 | Device for the treatment of a fibrous suspension Device for the washing and dewatering a fibrous suspension, which device incorporates two hollow, circular cylindrical filter drums (1), which filter drums incorporate evacuation chambers inside the filter drums for evacuation of fluid. The filter drums r... | 02/18/2003 |
| 6514381 | Method and apparatus for continuous mechanical thickening of slurry Methods and corresponding devices are set forth for the continuous mechanical dewatering of aqueous suspensions or elutriations, particularly of waste-paper suspensions or slurries, between an endless mesh band and an endless compression surface having a ... | 02/04/2003 |
| 6475377 | Media vacuum filter An apparatus for removing solids from a liquid/solid mixture disposed in a tank and rising to a mixture level, the apparatus including a suction assembly defining a suction opening, the suction assembly linked to a vacuum that causes suction at the openin... | 11/05/2002 |
| 6368463 | Arrangement for adjusting width of fibre web An arrangement for adjusting the width of a fibre web in an apparatus comprising two filter wires permeable to water, the filter wires having the same direction of travel, and a conduit for placing pulp suspension between the wires. The arrangement compri... | 04/09/2002 |
| 6358406 | Vacuum fluid filter A vacuum filter includes a cylindrical filter drum 12 having both a perforate section 14 and an imperforate section 16. The drum is positioned in a tank 20 so that the imperforate section is oriented upwardly therein. A level controller is provided to mai... | 03/19/2002 |
| 6338773 | Device for dewatering solid/liquid suspensions, especially pulp suspensions A device for dewatering solid/liquid suspensions, especially pulp suspensions, where the suspension is dewatered between two belts, with one dewatering zone being a wedge zone. A pair of rolls downstream of the wedge zone impart both area pressure and lin... | 01/15/2002 |
| 6306259 | Device for the treatment of a fibrous suspension Device for the washing and dewatering a fibrous suspension, which device incorporates two hollow, circular cylindrical filter drums (1), which filter drums incorporate evacuation chambers inside the-filter drums for evacuation of fluid. The filter drums r... | 10/23/2001 |
| 6267880 | Mechanical screen, in particular filter apron of a chain filter A mechanical screen employs at least one filter chamber which includes a chassis in the form of a frame and a filter panel disposed transversely in the opening of the chassis and appropriately attached to it. Clipping elements between the filter panel and... | 07/31/2001 |
| 6260714 | Sludge filtration apparatus having chain-type belt press with fine fibers of synthetic resin joined thereon A sludge filtration apparatus having chain type belt press with fine fibers of synthetic resin joined thereon wherein a pressing belt (50) for pressing the sludge on and with the filtering belt makes the sludge into the sludge cake, said filtering belt in... | 07/17/2001 |
| 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 |
| 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 |
| 6174446 | Vacuum filter apparatus and method for recovering contaminated liquid A filter system employs a pressure differential to draw liquid from a first liquid vessel through a filter media to a filtered liquid chamber. A pressure assembly generates a reduced pressure in the chamber. One embodiment of the filtration apparatus incl... | 01/16/2001 |
| 6159359 | Modular filter apparatus A modular filter apparatus is formed from stacked filter modules. Slurry to be filtered flows into the apparatus through a flowmeter and check valve into a header. The flow of slurry then branches off through feeders to each of the filter modules. Connect... | 12/12/2000 |
| 6149807 | Self-locking filter-screen feeding device A self-locking filter-screen feeding device for plastic material; the device comprises a carriage which may be reciprocated on guide rods parallelly extending to a filter band movable across a flow-path for the plastic material to be filtered in a filter ... | 11/21/2000 |
| 6106669 | Process for thickening a fibrous pulp suspension A process for thickening a fibrous pulp suspension by guiding the suspension between a rigid first face and a flexible second face that move in relation to each other and form a converging draining gap, where the first face and/or the second face is/are w... | 08/22/2000 |
| 6095343 | Gravity liquid filtration apparatus A gravity liquid filtration apparatus includes a housing with a pool forming assembly mounted between a pair of side walls in the housing. The pool forming assembly includes a central shaft with a pair of spaced-apart discs rotatably mounted on the shaft ... | 08/01/2000 |
| 6093315 | Sealing arrangement for filter belt An apparatus and method for filtering particulate materials from a fluid stream wherein a dirty fluid stream is passed through a moveable filter media and the cleaned fluid stream is recirculated in part to form filter media by-pass preventing liquid curt... | 07/25/2000 |
| 6003684 | Device for dewatering solid-liquid suspensions A device for dewatering solid-liquid suspensions, in particular pulp suspensions, in which the suspension is dewatered between two belts and a dewatering zone is formed in the shape of a wedge between the two belts. The wedge height at its end closest to ... | 12/21/1999 |
| 5965020 | Endless belt filter An endless belt filter for separating liquids and solids from a mixture comprises a liquid-permeable filter belt below the upper run of which is positioned at least one suction tray moveable in the direction of the upper run of the belt, at least one holl... | 10/12/1999 |
| 5961847 | Filter apparatus with dual drive loops An improved filter apparatus includes an upper tank for holding dirty liquid and has a perforated plate. A lower compartment is beneath the plate for receiving liquid from the upper tank. A permanent filter belt for filtering particulate from the dirty li... | 10/05/1999 |
| 5914038 | Separating device A separating device comprises an endless carrier belt which supports a filter belt. Suction boxes for drawing off filtrate are placed on the side of the carrier belt. The carrier belt protrudes laterally into the continuous slot of the vacuum box. In a la... | 06/22/1999 |
| 5879551 | Device for dewatering suspensions A device for dewatering suspensions such as sludge or similar dewaterable goods contains several rollers and filtering webs that follow a sinuous path around the rollers. The width of at least one pressure gap, as well as the force which is applied on the... | 03/09/1999 |
| 5868903 | Device for dewatering and/or washing suspensions, in particular suspensions of fibrous materials The invention refers to a device for dewatering and/or washing suspensions, especially fibre stock suspensions, with two dewatering rolls rotating in opposite directions, where at least a further two guide rolls, especially press rolls, are provided and a... | 02/09/1999 |
| 5866017 | Tracking arrangement for a moving belt A tracking system for a flexible moving belt wherein an adjustable protuberance arrangement on the belt support structure having a preselected removable and replacable frictional surface which serves to engage against an adjacent face of the belt to align... | 02/02/1999 |
| 5865997 | Scraper blade assembly A scraper blade assembly utilizes an over-center spring to bias the scraper blade assembly both into engagement and out of engagement with a conveyor, such as a moving belt, on a device for separating solids from liquids. The over-center spring extends be... | 02/02/1999 |
| 5863429 | Method and apparatus for removing water from sludge and similar substances In a method and apparatus for removing water from sludge the sludge is introduced into an intermediate chamber from which it is fed into at least one sludge chamber having a filter surface. A hydrostatic pressure is built up in the sludge chamber to remov... | 01/26/1999 |
