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| Number | Title | Issue Date |
| 7396472 | Filter plate assembly for filter A filter configured to separate the solid components and the liquid components from a slurry. The filter includes a plurality of filter plate assemblies that cooperate to define a plurality of filter chambers, each defining a perimeter having an open section when th... | 07/08/2008 |
| 7299745 | Horizontally positionable vertical wine press A juice press as used in the production of wine for removing liquids from solids, having a horizontally positionable press frame that allows a vertical press mechanism to be rolled to a first position for interference-free loading of a press basket with material to ... | 11/27/2007 |
| 7285217 | Removing odoriferous sulfides from wastewater A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. Th... | 10/23/2007 |
| 7201845 | System for inserting and removing frames of a fluid transfer system A system for moving a filter or a retainer into or out of a fluid pathway without halting the movement of the fluid in the pathway. When acting as a filtering device, the system includes a filter frame and a drive mechanism for slidingly moving the filter frame on s... | 04/10/2007 |
| 7156145 | Apparatus and method for inserting parts into a mold A dispensing arrangement for inserting a part into a cast iron mold includes a dispenser apparatus configured to dispense a predetermined number of parts, a staging apparatus configured to position the parts in a selective orientation and a jig apparatus configured ... | 01/02/2007 |
| 6866777 | Laminated modular water filter A laminated modular water filter includes superposed annular plates. A filter unit is disposed between each adjacent pair of the annular plates. The annular plates include a top plate, a bottom plate, a plurality of intermediate plates, and at least one flow-guiding... | 03/15/2005 |
| 6754927 | Device for detaching filter cakes A device (1) for detaching a filter cake which adheres to a filter cloth (4) of a filter press, comprising at least two deflection bodies (2, 3) around which the filter cloth (4) extends in an S-shaped manner and which can be moved in an ... | 06/29/2004 |
| 6641726 | Filter device, and filtration and cleaning method The present invention relates to a filter device for completely removing residual amounts, after filtration, from the space of the unfiltered product. The filter device comprises a plurality of parallel filtration plates which are separated by filtration ... | 11/04/2003 |
| 6613226 | Laminated modular water filter A laminated modular water filter includes a top plate, a bottom plate and a plurality of superposed intermediate plates disposed between the top and bottom plates. Each adjacent pair of the top, intermediate and bottom plates are interconnected removably,... | 09/02/2003 |
| 6521135 | Filtration apparatus operation features A pressure-filter apparatus includes at least one filtration chamber coupled with a source of slurry. The filtration chamber is also coupled with a source of fluid at an elevated pressure, which may be arranged in series or in parallel with a source of wa... | 02/18/2003 |
| 6461507 | Continuous squeeze-dewatering device A continuous compression-type dewatering apparatus has a filter chamber (3), a drive shaft (17), a vane (15), and a supply path (50). The filter chamber (3) is delineated by an annular plate (2) and two side plates (1, 1). The drive shaft (17) passes thro... | 10/08/2002 |
| 6387282 | Method of drying a filter cake and a press for carrying out the method The filter cake in a filter press is heated by direct contact with a heating plate opposite the pressing membrane so that a vapor phase is generated which moves uniformly in a planar pressure front through the filter cake to dry residual liquid therefrom.... | 05/14/2002 |
| 6071425 | Method and apparatus for washing the filter fabric of a filter press A method and apparatus for washing a filter fabric (3) of a filter press. The method includes filtering a material to be filtered containing a liquid and solids through the filter fabric (3) in a filter cell (20), retaining the solids on a surface of the ... | 06/06/2000 |
| 5855778 | Filter press A filter press having a horizontal stack of filter plate assemblies, in which removal of filter cake is automated by means of a vibration/shifter carriage that can be moved in steps along a stack of filter plates after a press closing head has been retrac... | 01/05/1999 |
| 5846415 | Apparatus for regenerating filter clothes of filter press A vibration rod for simultaneously vibrating upper-portion support bars arranged to be upwards brought into contact with two ends of the upper-portion support bar to simultaneously vibrate the upper-portion support bars is disposed below the bar for suppo... | 12/08/1998 |
| 5843310 | Filter unit for filter press Since a filter unit is formed by causing an upper portion support bar for a filter cloth put on a filtering surface of a filter plate to be engaged to a washing pipe integrally provided for the filter plate, a filtering mechanism portion of a filter press... | 12/01/1998 |
| 5804070 | Filter press for filtering suspensions, especially sewage sludge A filter press for the filtration of suspensions has a frame, a support plate (1), a pressure plate (2) mounted in the frame and a set of vertically arranged filter plates (4) between the support plate (1) and the pressure plate (2). The filter plate (4) ... | 09/08/1998 |
| 5741418 | Filter cloth suspending apparatus in filter press This invention relates to a filter cloth suspending apparatus in which a filter cake is produced by pressing sewage and waste water between filter cloths with filter plates, and the obtained cake is discharged. In the apparatus, an upper edge of the filte... | 04/21/1998 |
| 5728307 | Method of emptying the press chambers of a press filter and an apparatus therefor The present invention relates to a method pertaining to press filters of the kind which include a plurality of press plates that can be brought towards and into mutual abutment and pairs of which form therebetween at least one pressure chamber, wherein th... | 03/17/1998 |
| 5674384 | Filter press with weight-responsive bumping of filter plates A shifter mechanism for a filter press, which shifter mechanism incorporates a vibrating mechanism for effecting bumping of individual filter plates during the separation thereof from the closed stack to assist in dislodgement of filter cake from the indi... | 10/07/1997 |
| 5635061 | Plate shifter mechanism A shifter mechanism for a filter press, which mechanism includes a reciprocal housing supported for movement along the press side rail, and a stop pawl mounted on the housing for stopping shifter movement in one direction, and a drive pawl mounted on the ... | 06/03/1997 |
| 5605621 | Unloading device for filter press The unloading device for filter press has upper means for supporting a series of filtering cloths which are associated with the opposite front surfaces of a corresponding series of plates arranged in a pack, the plates being compressible between a fixed h... | 02/25/1997 |
| 5567327 | Air-assist discharge of filter press cake A filter press plate shifter assembly (21) provided with a shifter housing (22) having a tunnel-like center part which passes over the filter plates and housing parts positioned adjacent opposite side rails (14). Each side housing part mounts a pneumatic ... | 10/22/1996 |
| 5554302 | Core blow nozzle An apparatus for facilitating the removal of slurry, remaining in the feed core of a filter press having central feed filter plates, is disclosed. The apparatus is utilized during the core blow process of directing pressurized air into the feed core, in t... | 09/10/1996 |
| 5505846 | Plate shifter for filter press A filter press plate shifter assembly provided with a shifter housing having a center part which passes over the filter plates and housing parts positioned adjacent opposite side rails. The housing parts are rollingly supported on rods which extend along ... | 04/09/1996 |
| 5476550 | Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor A counterflow single-screw extractor includes a screw conveyor having a helical scroll formed from arcuate flight sections each having a plurality of elongated slots extending away from the direction of screw rotation and permitting the flow of effluent t... | 12/19/1995 |
| 5449468 | Method and apparatus for dislodging a cake of a chamber filter press In a chamber filter press (11), two respective filter cloths (13), which enclose a filter plate (12) located therebetween, are fastened on said plate by means of a connecting part (18) and on the underside (19) thereof by means of lashings (14). The filte... | 09/12/1995 |
| 5395523 | Cake removing apparatus for use in filter press A cake removing apparatus for use in a filter press has mounted on a movable frame of the press a pair of front and rear arms having main and auxiliary fabric beating members, means for pivotally moving the arms, and a a lift mechanism for the arms and th... | 03/07/1995 |
| 5370795 | Plate shifter for filter press A filter press plate shifter assembly provided with a shifter housing having a center part which passes over the filter plates and housing parts positioned adjacent opposite side rails. The housing parts are rollingly supported on rods which extend along ... | 12/06/1994 |
| 5362387 | Beer filtering device A beer filtering device of a filter press type for filtering a beer stock. The beer filter device includes a plurality of filter plates (4) and a plurality of filter frames (6) arranged side by side in alternate relationship to each other. A filter elemen... | 11/08/1994 |
| 5328617 | Air-assist discharge of filter press cake A filter press plate shifter assembly provided with a shifting housing having a tunnel-like center part which passes over the filter plates and housing parts positioned adjacent opposite side rails. The housing parts are rollingly supported on rods which ... | 07/12/1994 |
| 5258119 | Filter assembly with filter media retrieval A compact filter assembly adapted for filter media retrieval comprises an in-line arrangement of a filter stack module, a filter media supply module for introducing filter media to the filter stack module, an extractor and separator module and a rewind mo... | 11/02/1993 |
| 5246578 | Filter press and cleaning means therefor In order that higher demands on the purity of the separated liquid can be satisfied, a cleaning plant (12) having wash chambers (13a,b) for the cleaning of the filter plates (8) is arranged in longitudinal direction alongside of a filter press (1). By mea... | 09/21/1993 |
| 5228467 | Filter media cleaning system A method and apparatus for cleaning filter media in dewatering apparatus in situ includes an applicator which sprays a mixture of water and a cleaning agent onto a filter media as the applicator and media undergo relative movement. The cleaning solution c... | 07/20/1993 |
| 5198123 | Plate filter press A plate filter press for the mechanical separation of solids from a liquid forming a suspension. The plate filter press is made of a plurality of vertical membrane plates and filter plates, the membrane plates and filter plates alternating. The space betw... | 03/30/1993 |
| 5182017 | Filtrate separating device with flexible deformable liquid and gas impermeable wall Filtrate separating device having a pair of walls connected by a frame defining a receiving space for sludge to be filtered. The walls being displaceable away from one another, and made of a flexibly deformable liquid and gas impermeable material.... | 01/26/1993 |
| 5167801 | Filter press with cake removing device A filter press is provided with filter plates supported vertically in a horizontal row in a frame structure and with filter cloth disposed between the filter plates for treating slurries introduced between the filter plates. The filter press includes bars... | 12/01/1992 |
| 5143628 | Method of the dewatering of sludge A sludge volume of difficult to dewater sludge is subdivided in a sludge dewatering press into fractional volumes which are self-draining even at press pressures of 50 bar and more. The partitions are water-permeable and form water channels for conducting... | 09/01/1992 |
| 5143609 | Method for dewatering and drying a liquid/solid slurry and an apparatus for using the method The invention discloses an improved method and apparatus for utilizing the principal of dewatering and drying a liquid/solid slurry. Unlike the prior known method of consecutive material thickening, filtering, crushing and then subsequent drying which is ... | 09/01/1992 |
| 5133884 | Method for pressure filtering and device for carrying out same The present invention relates to a method of and apparatus for pressure filtering, the pressure filter (1) used comprising pressure plates (3,4,5,6), which can be pressed against each other. Pressure chambers (8) are formed between the pressure plates and... | 07/28/1992 |
