Class 210/335 - In series for prefilt flow

Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus which are in series.
No. of patents: 239
Last issue date: 08/09/2011

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Number	Title	Issue Date
7993520	Selective partitioning capacity based filter media A method is provided for filtering a fluid. The method includes the step of selecting a first surface filtration medium to include layers of a first mesh material (FMM). The method also includes the step of selecting a second surface filtration medium to include lay...	08/09/2011
7862720	Portable filtration system A portable filter and filter system. The filter has a filter housing defining a liquid channel from an inlet to an outlet. The portable filter includes a liquid filter located in the filter housing, a mouthpiece mechanically associated with the dispensing end of the...	01/04/2011
7582209	Graded particle-size retention filter medium for fluid filtration unit with improved edge seal A fluid filtration unit having two or more filter medium layers and/or zones, at least one of the layers/zones having a different particle retention capability disposed on each side of a non-filtering separator element. The filter medium are presently preferably pos...	09/01/2009
7438811	Water purification apparatus A water purification apparatus includes a main body having an accommodation chamber inside and a plate on a top side thereof, a lid pivotally mounted on the main body and closable on the main body, a holder mounted with the plate of main body and defining with the p...	10/21/2008
7425304	Processing set and methods for processing and treating a biological fluid Apparatus, systems and methods are disclosed for treating a biological fluid with light. A container of biological fluid is introduced into a fluid treatment chamber where it is contacted with light provided by one or more light sources in proximity to the fluid tre...	09/16/2008
7413649	Treatment apparatus with modular chemical containing units having one-way valve assemblies A fluid treatment system that includes at least one treatment module (“pod”) with rigid and impermeable inner and outer surfaces, and an annular center passage which is designed to provide an alternative flow path during the pod backwashing process. At least one...	08/19/2008
7404926	Water treatment system A method and system for treating a fluid containing entrained cementitious particles involves drawing the fluid from a storage location, pre-filtering the fluid, dividing the pre-filtered fluid into a flow of permeate and a flow of bypass by passing said pre-filtere...	07/29/2008
7402239	Water purification apparatus and method of using the same A water purification apparatus, comprising a water pump, wherein the water pump inlet port receives water from an external source, a nonreturn valve in fluid communication with the water pump outlet port, and an ionizer chamber in fluid communication with the nonret...	07/22/2008
7384551	Trapezoid settler apparatus and method for solvent extraction An embodiment of the invention includes a trapezoid settler having a longitudinal axis, a base, a first side wall oriented at an angle to the longitudinal axis, a second side wall opposing the first side wall and oriented at an angle to the longitudinal axis, and a ...	06/10/2008
7332096	Blood filter assembly having multiple filtration regions A filtration medium is sealed within a housing. The filtration medium is sized and configured to define multiple filtration regions within the housing, through which independent, though concurrent, blood filtration can occur. Each filtration region is served by its ...	02/19/2008
7329342	Metallic particle trap bypass filter A metallic particle trap bypass filter is disclosed generally comprising a housing, a filter element disposed therein, an inflow chamber, an outflow chamber, a bypass valve connecting these chambers, and a magnet disposed in the outflow chamber. In some embodiments,...	02/12/2008
7309418	Water contaminant indicators A filtering device for a gravity-flow liquid treatment system includes a first filter component that can be either exposed or adjacent to a substantially transparent region in at least a portion of a filter housing. The first filter component is capable of providing...	12/18/2007
7306735	Process for the removal of contaminants from water The present invention provides a method of removing contaminants from water which includes the steps of first providing a water feed exposed to at least one hydrocarbon or chemical process. This water feed is set in-line with a reverse osmosis system which includes ...	12/11/2007
7287684	Filter cartridge assembly and method of manufacture An apparatus for filtering well fluids and method of manufacture is disclosed. The apparatus comprises an inner support, a filter spirally wrapped around the inner support, and an outer support wrapped around the filter enclosing the filter between the inner and out...	10/30/2007
7282188	Method and device for producing a metal hydroxide The invention concerns a method and an apparatus for producing a metal hydroxide, in particular magnesium hydroxide, from a salt solution, wherein the metal is firstly precipitated from the salt solution and the suspension produced in that way is then filtered. The ...	10/16/2007
7255722	Gas filter A filtration portion 11 constituting a filter element 3 is composed of a first filtration material 9 wound around the outer periphery of an inner tube 8 and a second filtration material 10 wound tightly around the outer peripheral ...	08/14/2007
7247241	Process for treating lipophilic fluid Process for treating lipophilic fluids employing filters, more particularly, multifunctional filters that are capable of removing as well as adding components to lipophilic fluids being filtered are provided by the present invention. ...	07/24/2007
7247245	Filtration cartridge and process for filtering a slurry A depth filter design is disclosed which has little if any open void area upstream of the media. Preferably, it also has little if any open void area downstream of the media as well. A preferred embodiment uses layers of stacked, fibrous media with several of the la...	07/24/2007
7235400	Laminated microarray interface device A device for forming a low volume reaction chamber on a substrate such as a microarray slide and its method of use is disclosed. The reaction chamber forming device has an adhesive laminate design that permits it to be manufactured as a disposable device. A preferre...	06/26/2007
7223363	Method and system for microfluidic interfacing to arrays A method and system for providing a fluidic interface to slides bearing microarrays of biomolecules or other samples immobilized thereon to perform a variety of chemical reactions or processing steps on the slide. An interface device seals against the slide to form ...	05/29/2007
7217520	Microwell biochip Microwell biochips (11) are formed from a thin flat plate (13) of polymeric material having a plurality of regularly spaced holes (15) that extend completely therethrough and create microwells. The lower end of each hole is closed by a microporo...	05/15/2007
7211224	One piece filtration plate Laboratory device design particularly for a multiplate format that includes a plate or tray having a plurality of wells, and a drain in fluid communication with each of the plurality of wells. The plate is a one-piece design having a honeycomb structure that brings ...	05/01/2007
7182858	Multiple barrier filter apparatus A filter apparatus is provided which includes a first filter membrane element (40a), and a second bacterial filter membrane element. The first viral filter element (40a) is capable of treating water at a first second flow rate and is adap...	02/27/2007
7163618	Multi-inlet port manifold for a medical waste receiver having an elevated filter element and tethered inlet port caps A filter system especially useful in the treatment of waste material, in particular liquid waste material which may include particulate matter therein. The filter system includes a series of filters of progressively finer porosity in order to selectively eliminate p...	01/16/2007
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
7144727	Interlinked culture chamber for biologicals The bioreactor system of the present invention has two fluid-filled culture compartments in which cells, tissues and other biologicals are cultured. The two culture compartments are in fluid communication with each other and each culture compartment is transversed b...	12/05/2006
7125490	Porous filter A filter has a longitudinal axis with an inner diameter defined by a hollow longitudinally extending center. The filter has fingers extend radially outwardly arcuately from the longitudinal axis. The fingers have base ends near the longitudinal axis and outer edges ...	10/24/2006
7122119	Sieve separator A sieve separator and a method of slurry separation that uses two or more levels of filtration screens. In some embodiments, the filtration screens on different levels may be used to separate solids of various sizes at each level. ...	10/17/2006
7118673	Filter for oil containing adhesive contaminants The present invention involves a filter element assembly (10), which is useful in removing undissolved adhesive bodies from oil. The assembly includes at least one cylindrical body 11 of principal filter medium for removing particulates from oil. Body ...	10/10/2006
7112281	Underdrain for filtration membrane A device and method for removal of liquid from the downstream side of a membrane or a well, such as a well of a multiwell plate. More specifically, the present invention is directed to a wicking structure, which channels droplets of liquid away from a membrane in co...	09/26/2006
7096627	Rain head A rain head is disclosed having three filters through which water entering an inlet to the rain head must pass before passing out through an outlet from the rain head. The filters remove successively smaller particles from the water. ...	08/29/2006
7025877	Processing set for processing and treating a biological fluid Apparatus, systems and methods are disclosed for treating a biological fluid with light. A container of biological fluid is introduced into a fluid treatment chamber where it is contacted with light provided by one or more light sources in proximity to the fluid tre...	04/11/2006
6984313	Filtration and purification system and method therefor An automatic water filtration and purification system will allow a continuous water flow to downstream fixtures while simultaneously and automatically regularly flushing and cleaning in-path filter media. The automatic water filtration and purification system has at...	01/10/2006
6962660	Fluid filter system with secondary flow path for augmented filtration A filter system for spas and swimming pools is disclosed having a primary filter containing a porous membrane made of multiple plies. A fluid purifying medium in the form of irregularly shaped copper and zinc alloy particles is captured between the plies and placed ...	11/08/2005
6955761	Multifunctional filter Filters, more particularly to multifunctional filters that are capable of removing as well as adding components to a filtered material are provided by the present invention. In addition to a multifunctional filter, the present invention relates to the use of such a ...	10/18/2005
6951614	Method and device for filtering liquids, especially drinks A method for filtering liquids, especially drinks, is by a filtering device having at least two filter lines. Each filter line has at least one filter unit with at least one preliminary filter and one terminal filter which can be connected to or disconnected from th...	10/04/2005
6932850	Pleated filter and a method for making the same A filter may comprise a plurality of pleats, at least one pleat including a pair of pleat legs and pleat tip region. In some embodiments, a thickness of pleat tip region at a point spaced about one to four pleat leg thicknesses from the end of the pleat tip region m...	08/23/2005
6932902	Hydraulic oil filtration apparatus A hydraulic oil filtration apparatus 40 comprises an actuation control valve V, a pump-pressure oil passage 41, a connection oil passage 43, a tank oil passage 51, a return filter 60, a drain oil passage 53, a drain filter	08/23/2005
6929753	Coal bed methane wastewater treatment system A coal bed methane wastewater treatment system for efficiently and cost effectively treating wastewater generated from coal bed methane production. The coal bed methane wastewater treatment system includes collecting wastewater into an ozone diffusion tank where ozo...	08/16/2005
6923909	Disc filter housing and filter disc thereof A variable compression disc filter housing secures a circumferentially welded composite layer of filter disc material for filtering a small amount of liquid for determining the optimum filter media material for specific production applications. ...	08/02/2005

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Class 210/335 - In series for prefilt flow