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Class 210/291 - Particular liquid receiving means or foraminous bed retainer


Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus comprising particular means for introducing liquid
No. of patents: 152
Last issue date: 08/10/2010


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NumberTitleIssue Date
7771597Filter system
A filter system for clarifying water or wastewater. The filter system includes at least one filter compartment having at least one layer of filter media and an underdrain. The at least one layer of filter media removes impurities from the influent passing therethrou...
08/10/2010
7520987System and apparatus for purging absorptive materials used in the removal of contaminates from an aqueous medium
Methods, systems and apparatus are provided for purging an adsorptive material of entrapped particulates. Methods, systems and apparatus rely upon a reverse loop for reversing the flow of medium within an adsorption material, allowing particulates caught within the ...
04/21/2009
7390408Shallow bed fluid treatment apparatus
A column apparatus containing a shallow bed of material between fluid transporting fractals of large active surface area results in highly efficient processing with small equipment size. ...
06/24/2008
7374676High rate filtration system
A high rate, upflow filtration system is described in which a compressible, fibrous lump filtration media is compressed to adjust the porosity and collector size of the media in the bed and to provide a porosity gradient within the bed proceeding from more porous to...
05/20/2008
7344644Method and system for purifying water
The disclosed methods and systems of water purification relate to burying an underdrain in situ under a filter media bed such as a particulate material bed, within a natural body of water. A pump is provided for withdrawing water from the underdrain at a sufficient ...
03/18/2008
7335299Dual filter
A dual filter apparatus and a process of making a dual filter apparatus that minimizes disruption to the normal flow pattern through the filter apparatus by forming a porous medium suitable to carry a fluid activator and placing an activator proximate the porous fil...
02/26/2008
7303682Distributing or collecting device
The present invention relates to a fluid distributing device for distributing fluid into a column and to a fluid collecting device for collecting fluid from a column. The invention relates also to methods of using the devices of the present invention. The distributi...
12/04/2007
7288193Apparatus for directing fluids through a filter system
A fluid distribution system for directing fluids through a filter system. The fluid distribution system ensures proper distribution of fluids during the process of filtering as well as the process of washing a filter bed. The fluid distribution system may be used wi...
10/30/2007
7288194Underdrain system
An underdrain system having a bottom formed of concrete. The concrete bottom includes a plurality of depressions formed therein. A porous plate is operably associated with at least one of the depressions. An anchor assembly is provided for anchoring the porous plate...
10/30/2007
7226568Plural conduit replaceable outer support structure for radial flow system
Replaceable outer support structure 38 for a particulate material bed 70 in a radial flow system comprises a plurality of hollow conduits 50, 250, 260, at least some of which have a generally trapezoidal cross-section. The conduits are arranged ...
06/05/2007
7217363Filtration system
A filtration system for cleaning a fluid, typically water, that is contained in a tank having a rounded base and which cleans, during the backwash cycle, the filter media and, in particular, cleans the media in a usually stagnant area found in the rounded base of th...
05/15/2007
7198941Porous vessel bioreactor
The present invention provides a porous vessel bioreactor apparatus for use in reaction with immobilized enzymes and/or microbial cells, said apparatus consisting of a vertically elongated reaction vessel having at least one liquid reactant inlet; at least one produ...
04/03/2007
7195707Apparatus for determining weight and biomass composition of a trickling filter
In one embodiment, a filter media tower assembly is provided comprising a first portion and a second portion, wherein the first portion is suspended within the second portion. The first portion is a removable media tower or cage for holding filter media, whereas the...
03/27/2007
7160444System for removing contaminants from storm water
A system for treating storm water in situ within a storm water drainage system includes a process chamber and treatment material that is contained within the process chamber. Preferably, the treatment material is a material that is effective in removing heavy metals...
01/09/2007
7156982Apparatus for determining weight and biomass composition of a trickling filter
In one embodiment, a filter media tower assembly is provided comprising a first portion and a second portion, wherein the first portion is suspended within the second portion. The first portion is a removable media tower or cage for holding filter media, whereas the...
01/02/2007
7138056Filter underdrain system for backwash flow and method for measuring same
A filter underdrain system and a method for measuring the water flow through the underdrain filter system. The apparatus includes panel members assembled to form a perforate grid on the filter base structure of an underdrain block. The panels are generally rectangul...
11/21/2006
7105084Hybrid flow pond
A passive treatment system for removing metals, especially manganese, from mine drainage and other aqueous solutions. The Hybrid Flow Pond (HFP) is an open, pond-like structure utilizing a horizontal or vertical operational flow path through a bed of treatment media...
09/12/2006
7097766Sand filter with rotating vanes
The present invention is a media-based fluid filtration system that extends the time between backwashing operations and prevents the agglomeration of filtered particles at the top of the media bed through the use of a plurality of rotating vanes and associated tines...
08/29/2006
7094342Water activation device
A water activation device efficiently activates water and maintains its activation performance over a long period of time. The water activation device includes a conductive body having an in-flow opening and an out-flow opening, a cover member that coats the outer p...
08/22/2006
7067055Trickling alter tank with top side load cell assembly
In one embodiment, a filter media tower assembly is provided comprising a first portion and a second portion, wherein the first portion is suspended within the second portion. The first portion is a removable media tower or cage for holding filter media, whereas the...
06/27/2006
7022230Filtration device
The invention relates to a filtering apparatus including, inside a filtering tower (1), a filtering section (r), a liquid collecting section (7) and a liquid feeding section (e). The liquid feeding section (e) includes a diffuser (A) attached to an upw...
04/04/2006
7014762High capacity portable exchange single bed deionizer
A device for the deionization of incoming water is disclosed. The device includes a tank and a generally hollow distributor tube in the tank for ingress into and downward movement of unpurified water through the tank. An opening adjacent the bottom of the generally ...
03/21/2006
7001521Distributing or collecting device
The present invention relates to a fluid distributing device for distributing fluid into a column and to a fluid collecting device for collecting fluid from a column. The invention relates also to methods of using the devices of the present invention. The distributi...
02/21/2006
6998038Stormwater treatment system
A system for removing material from a flowing liquid, where the system includes one or more cartridges, where each cartridge has an outer permeable wall and an inner permeable wall that form a media region between the walls, where a media is disposed within at least...
02/14/2006
6991723Underdrain system
An underdrain system having a bottom formed of concrete. The concrete bottom includes a plurality of depressions formed therein. A porous plate is operably associated with at least one of the depressions. An anchor assembly is provided for anchoring the porous plate...
01/31/2006
6974536Wastewater treatment apparatus including dosing and recirculation chambers within a single tank
An apparatus provides for treatment of primary effluent from residential and commercial establishments to allow subsurface or surface disposable of wastewater. A single tank includes dosing and recirculation chambers 28, 30 having no direct fluid communicatio...
12/13/2005
6972091Ion exchange resin plant
An ion exchange resin plant for the demineralizing or softening water with an arrangement that allows the plant to operate continuously. The plant tank is divided into to two separate compartments that work simultaneously. One compartment effects water demineralizat...
12/06/2005
6919020Distributor/collector system
A distributor/collector system includes a distributor provided with an upper header having upper laterals carrying fluid away from the upper header and a collector provided with a lower header having lower laterals carrying fluid toward the lower header. Flow enters...
07/19/2005
6858139Methods and devices for preparing hemodialysis solutions
A single housing comprising a diluent inlet, a solution outlet, and a plurality of discrete reagent beds comprising at least one reagent in dry form, wherein said reagent is present in the discrete reagent bed in a proportion sufficient for production of a complete ...
02/22/2005
6841067Filtration device for liquids
A filtration device for liquids is provided and includes a filtration beaker filled with a filtration material and a lid. The lid is connected to the filtration beaker in a liquid-tight manner to define an inner volume, and includes at least one liquid inlet and at ...
01/11/2005
6841069High rate filter and high rate filtration method using the filter
The present invention relates to the raw water-filtering technical field, and is to provide a high speed filtering apparatus which can filter a great amount of raw water containing suspended substances (SS) at a high concentration at a high speed. Floating filter me...
01/11/2005
6830684Integrated liquid and gas distribution device for underdrain block laterals
The invention recites a filter comprising a block including an outer wall defining an inner chamber and a block exterior, and a conduit having a conduit wall, a first conduit end, a second conduit end, and an inner flow path providing fluid communication between the...
12/14/2004
6797166Underdrain apparatus
A filter underdrain apparatus and a method for manufacturing such apparatus. The apparatus includes a cover member, a water orifice member and a bottom member, each being individual pieces. The cover is placed over the water orifice member and connected thereto by w...
09/28/2004
6641738Water/oil separator and use thereof
A process for the removal of oil from oil-contaminated water is efficient, inexpensive, and capable of oil removal to a level where the water may be disposed of by conventional sewage treatment or reused. The apparatus which performs the process consists ...
11/04/2003
6616832Multi-layer recirculating filter wastewater treatment apparatus
A wastewater treatment unit (10) including a recirculation chamber (32), a dosing chamber (34) having no direct fluid connection to the recirculation chamber (32), and at least two filter layers (28, 30) in a single tank (12). Each filter layer (28, 30) c...
09/09/2003
6605214Devices for preparing hemodialysis solutions
A single housing includes a diluent inlet, a solution outlet, and a plurality of discrete reagent beds comprising at least one reagent in dry form, wherein the reagent is present in the discrete reagent bed in a proportion sufficient for production of a c...
08/12/2003
6521125Oil/hydrocarbon removal system
A filtration system is provided for removing oil and/or hydrocarbons from blige water that collects in the blige of a marine vessel to ensure discharge of oil-free water into the surrounding waters of the vessel. The filtering medium of the system is comp...
02/18/2003
6488842Filtering device
A filtering device includes a container having an inlet for introducing liquid to be treated, an annular multi-layered prepacked screen assembly provided in the container and having an outlet for treated liquid. The screen assembly includes three or more ...
12/03/2002
6475385Resin trap device for use in ultrapure water systems and method of purifying water using same
The present invention is directed to the use of a resin trap device to remove large resin particles from water in a water purification system to thereby protect downstream ultrafiltration equipment. The present invention includes a resin trap device which...
11/05/2002
6461501Ornamental pond skimmer and filter apparatus
There is provided herein a new skimmer apparatus and a new filter mechanism for use in ornamental ponds and the like. According to a first preferred embodiment there is provided a skimmer apparatus which has an enclosing container with a lower terminus th...
10/08/2002
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