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| Number | Title | Issue Date |
| 8052869 | Chamber filter plate and method of producing the same A chamber filter plate for a filter press includes a plate plane having a longitudinal direction and a crosswise direction. A plate body has a surface with a thickness. A plate edge frames the plate body and is thicker than the surface of the plate body. The plate e... | 11/08/2011 |
| 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 |
| 7357866 | Filter module, installation kit for a filter module and a filter device The invention concerns a module for filtering media. More particularly, the invention concerns a module for filtering fluids and including one or more filter cells stacked on top of one another. The invention also relates to an installation set for the installation ... | 04/15/2008 |
| 7326341 | Membrane filter press The invention relates to a membrane filter press. On operation of such a press a secure generation of the necessary pressing pressure can be guaranteed with a membrane filter press that has at least one membrane filter plate, a baseplate with thickened edge region, ... | 02/05/2008 |
| 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 |
| 7279215 | Membrane modules and integrated membrane cassettes The invention features integrated membrane assemblies for selectively transferring a constituent to or from a fluid. The assemblies include two or more flat sheet membrane elements and at least one common manifold connected to the interior regions of the membrane el... | 10/09/2007 |
| 7267761 | Method of reducing sulfur in hydrocarbon feedstock using a membrane separation zone A membrane is used in combination with fractionation and hydrodesulfurization to reduce the sulfur content of hydrocarbon feeds, preferably sulfur-containing naphtha feeds. A membrane separation zone is employed to treat a fraction of effluent from a fractionation z... | 09/11/2007 |
| 7247191 | Crosslinked and crosslinkable hollow fiber membrane and method of making same utility A composition of and a method of making high performance hollow fiber membranes is described. The membranes have a high resistance to plasticization by use of a predetermined amount of crosslinking. The preferred polymer material for the membrane is a polyimide poly... | 07/24/2007 |
| 7244366 | Water filtration and recycling for stone fabrication equipment for exterior and architectural stone A filtered grey water recycling system includes a waste water storage tank for receiving waste water from a stone processing system and a filtered grey water supply loop providing filtered grey water to the stone processing system. The filtered grey water loop inclu... | 07/17/2007 |
| 7176771 | Circuit breaker filter assembly An improved filter assembly for a circuit breaker includes a generally rectilinear filter housing having at least two filter mounting zones for receiving at least two filter assemblies, so as to define, in the aggregate, a filter assembly, and at least two filter as... | 02/13/2007 |
| 7153425 | Process and filter for filtering a slurry The present invention comprises a process for filtering a slurry and a filter cartridge construction for filtering a slurry having a filtration medium formed of a depth filter such as a cylindrical seamless fibrous depth filter comprising a nonwoven fibrous mass, wo... | 12/26/2006 |
| 7101301 | Two-speed transfer case with center differential A simple planetary gear arrangement is provided for a transfer case. The transfer case includes a carrier connected to the transfer case input. The ring gear is connected with a rear axle. The sun gear is connectable with a front axle through a clutching arrangement... | 09/05/2006 |
| 7077968 | Method for continuously filtering raw brine for use in chlor-alkali electrolysis The method of continuously processing raw brine with a solids content to obtain substantially solids-free pure brine (E) for use in chlor-alkali electrolysis. In this method the raw brine (A) is separated, by means of a decanter (1), into a clear brine (B) wi... | 07/18/2006 |
| 7051540 | Methods for fluid separations, and devices capable of separating fluids Wick-Containing apparatus capable of separating fluids and methods of separating fluids using wicks are disclosed. ... | 05/30/2006 |
| 7048846 | Membrane separation for sulfur reduction A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an... | 05/23/2006 |
| 7041212 | Membrane separation for sulfur reduction A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an... | 05/09/2006 |
| 7018527 | Membrane separation for sulfur reduction A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an... | 03/28/2006 |
| 6932859 | Crosslinked and crosslinkable hollow fiber membrane and method of making same A composition of and a method of making high performance hollow fiber membranes is described. The membranes have a high resistance to plasticization by use of a predetermined amount of crosslinking. The preferred polymer material for the membrane is a polyimide poly... | 08/23/2005 |
| 6875352 | Module filter comprising at least one admission for the non-filtrate and at least one discharge for the filtrate and comprising at least one filter module A module filter has a container with an admission for a non-filtrate and a discharge for the filtrate. A filter module is arranged in the container and has several stacked, disc-shaped filter cells of filter material having an inner space. The filter cells have cent... | 04/05/2005 |
| 6669844 | Filtration device with stacked deep-bed filter elements The invention relates to a filtration device for deep-bed filtration which is easier to handle and enables filter modules(s) to be changed and disposed of easily. The filtration device has a casing with at least one filter module inserted in the casing wi... | 12/30/2003 |
| 6592826 | Differential vacuum chamber for directed transport of a substance In a vacuum chamber, which has at least two vacuum regions, substances, especially fluids, are transported in a directed manner from one region into the other region by the application of a suitable vacuum. As a result, it is possibly by the use of filter... | 07/15/2003 |
| 6506300 | Distributor plate for crossflow cassette-type filtration appliances A monodirectional or bi-directional distributor plate for crossflow cassette-type filtration appliances is provided which comprises three parts and is used in the ultrafiltration or microfiltration of liquids. The three-part distributor plate assembly com... | 01/14/2003 |
| 6468810 | Magnetic particle transfer device and method A device for transfer suitable for capturing and releasing microparticles binding an immobilized substance, which includes a magnet as well as either an extendable membrane, shapable membrane or magnet's coating such that the membrane or coating pressing ... | 10/22/2002 |
| 6342156 | Multi-segment continuous filtration system A multi-segment filter system is provided for continuous filtration of high viscosity materials, such as polymer melts. In particular, each segment comprises a filter screen positioned between a bottom breaker plate and a top cover plate. The filter scree... | 01/29/2002 |
| 6030905 | Filter material containing thermoplastic, elastomer copolyether esters, method of producing the same, use thereof, and filter press therefrom A filter material is described containing synthetic yarns based on a thermoplastic, elastomer copolyether ester. The yarns contain at least 70 wt. %, referred to total yarn weight, of a thermoplastic, elastomer copolyether ester containing at least 95 wt.... | 02/29/2000 |
| 6017450 | Filter press frame A filter press frame and method, operable for compressing a stack of filter plates, provides a very light frame as compared to the iron, steel and stainless steel filter press frames that have been used for the last one hundred years. The filter press fra... | 01/25/2000 |
| 5792348 | Steel reinforced filter press plates Steel reinforced filter plates consist of an inner steel sheet and front and back panels composed of thermoplastic resin. The front and back panels of the filter plate are composed of thermoplastic synthetic resin and are bond to each other through a seri... | 08/11/1998 |
| 5658468 | Elastic membrane press filter and filtration method using it An elastic membrane filter, in particular for filtration of mash, has a lower feed pipe and a second or upper feed pipe passing through the filter elements at a location opposite the lower feed pipe, the upper feed pipe being connected of the lower feed p... | 08/19/1997 |
| 5624555 | Fluid fractionating, stacked permeable membrane assembly The invention disclosed is a stacked, permeable membrane assembly, comprising two clamping plates with spaced, permeable membrane assemblies between them on a simplified frame. Each membrane assembly includes a membrane support means, conveniently a rigid... | 04/29/1997 |
| 5573667 | Belt filter medium A belt filter medium with detecting means for a filter apparatus and method is disclosed for separating solid materials from liquid materials in a slurry fluid. The apparatus includes separable plate members (12,14) that are pressed against each other to ... | 11/12/1996 |
| 5474675 | Filter separator for separating a composite fluid A filter separator for decomposing a fluid consisting of a mixture of liquids containing solid components has a filter press combined with a micro- and ultrafiltration apparatus. The filter press separates the solid components from the fluid and the micro... | 12/12/1995 |
| 5449455 | Closer mechanism for compact filter press assembly and method of operation A closer mechanism and method of operation is provided for filter press assemblies and similar applications having a movable plate for opening and closing the assembly. A flexible bladder is arranged adjacent the movable plate and initially pressurized by... | 09/12/1995 |
| 5441651 | Method and apparatus for processing sludge A method and apparatus for processing sludge, which utilizes filter plates and flow regulating means to form condensed sludge of higher concentration, have been developed. The filter plates are disposed within a sludge tank and noncondensed sludge is adde... | 08/15/1995 |
| 5417865 | Method and device for the detection and removal of bulges in continuous strips of material The invention concerns a method of detecting and removing bulges in continuous strips of material before they enter higher-pressure zones in a dewatering filter press. The method is characterized in that, when a bulge occurs, a sensor is deflected and a c... | 05/23/1995 |
| 5411669 | Process and apparatus for treating pre-concentrated solid-liquid mixture streams A process and apparatus for the treatment of pre-concentrated solid-liquid mixture streams, and in particular the dewatering of solid-liquid mixture streams metering the mixture from an intermediate container to a liquid separation device. The process acc... | 05/02/1995 |
| 5366627 | Enclosed thorough wash filter press A thorough wash operation of a process fluid is conducted within the confines of an enclosed housing. The housing includes four ports at one side of the housing for transmission of process fluids through a plurality of press frames so as to (1) separate s... | 11/22/1994 |
| 5296142 | Chamber filter press A chamber filter press for dewatering waste water or product sludges, comprises a press frame with a number of filter plates movably attached at the head bracket and a crosshead that is hydraulically movable for closing the filter plate bundle. The hydrau... | 03/22/1994 |
| 5275740 | Filter press with adaptive automated control arrangement A method for controlling the filling of a filter press with slurry according to a preferred embodiment of the present invention includes the sequentially executed steps of: gradually increasing the pressure of the slurry supplied to thee press until the s... | 01/04/1994 |
| 5240608 | Apparatus for waste free dredging of waterways and the fabrication of building materials This invention relates generally to dredging under harbors and waterways and fabricating building materials and more particularly to an apparatus for dredging that produces no waste and uses the dredged material for useful building products. Furthermore, ... | 08/31/1993 |
| 5185048 | Method of manufacturing a separator frame for a stack in an exchanger device Each separator frame constitutes a single part. It is made by assembling two thermoplastic films having the shape of the seal plane and sandwiched over two different types of thermoplastic expanded structure, e.g. polyethylene grids, a first one of these ... | 02/09/1993 |
