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7410605 |
Solution film-forming method
The solution film-forming method is provided in which the absolute filtration accuracy for a cellulose acylat solution can be improved and filtration throughput can be increased without reducing...
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7381323 |
Filtration apparatus
A filtration apparatus is provided which is easy to maintain, manage and which enables preservation of filtration characteristics due to the fact that filtration is carried out by use of a...
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7147728 |
Magnesium alloy producing negative potential
A type of magnesium alloy that is capable of producing negative potential, characterized in that it contains 8 wt %˜9.1 wt % of aluminum (Al), 0.1 wt %˜1.0 wt % of zinc (Zn), 0.1 wt %˜1.0 wt %...
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7074338 |
Filtering method and filtering device
Using the filter auxiliary agent separated by backwashing from a filter element repeatedly and effectively, the consumption amount of a filter auxiliary agent and the generation of industrial waste...
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7029579 |
System for solid-liquid separation
A system for use in filtering a slurry using air pressure to squeeze the slurry material and dewatering it. The system including a source of slurry, a chamber, a filter belt that passes through the...
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7018547 |
Filtration covering apparatus
A filtration covering apparatus for use covering diatomaceous earth filter grids for swimming pools. The filtration covering apparatus has a replaceable cover having two closed sides, a bottom...
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7001528 |
Use of aqueous binders in producing filter materials
The use of an aqueous polymer dispersion comprising dispersed particles of at least one polymer A1 obtainable by free-radical emulsion polymerization in the presence of a polymer A2 synthesized...
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6929754 |
Solid/liquid separation system for multiphase converters
Methods and apparatus for removing wax products from a slurry used in a Fischer-Tropsch reactor. The preferred embodiments of the present invention are characterized by a solid/liquid separation...
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6833077 |
Sequential swinging precoat removal and renewal system, filter so equipped and method
A precoat renewal system for a filter, such as a disc filter. The renewal system includes a plurality of nozzles coupled to spray piping and valving with each nozzle being positioned for spraying...
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6830679 |
Filtration device
A filtration device is provided in which wastewater, in the form of a colloidal solution containing microparticles, is guided to tank, circulated, and filtrated using a second filter. The device...
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6800197 |
Continuously operable rotating drum pressure differential filter, method and systems
A rotating drum pressure differential filter is provided whereby a layer of filter medium is continuously refreshed by a spray applicator device after the layer is utilized to filter components...
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6733680 |
Use of particulate polymers as filter aids for aqueous liquids
The description is given of the use of particulate water-insoluble polymer preparations comprising at least one polymer P that is essentially made up of hydrophilic polymer segments and hydrophobic...
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6673447 |
Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist
A hydrophobic polymer fiber having a cationically charged coating thereon, in which the coating includes a functionalized cationic polymer, such as an epichlorohydrin-functionalized polyamine or an...
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6589430 |
Controlling the supply of bodyfeed to a filter
The invention features a control system for controlling the supply of bodyfeed to a filter for removing solids from a beer stream is described. By applying the bodyfeed at an appropriate rate and...
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6585901 |
Method of draining water from low-consistency water-fiber suspensions
A method of draining water from low-consistency water-fiber suspensions, in which the water-fiber suspension is fed to a filtering surface comprising holes. The rougher fibers are first separated...
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6562245 |
Crushed foam glass filter aid and method of use
Disclosed is filter aid formed of a crushed foam glass utilized as a filtering aid for removing suspended materials in a fluid stream by first providing a permeable support with the crushed foam...
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6555014 |
Method for filtering a liquid by the addition of a filtering aid
A method for filtering a liquid and an apparatus for carrying out the method in which at least one container is provided from which a filtering aid is fed to a dosing device by a delivery device,...
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6537449 |
Liquid filter using filtration aid
A liquid filter is provided of the type having a filter container with an inlet through the side of the container towards the lower end thereof, an outlet from the container, and a filter medium...
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6511604 |
Method of treating a liquid material and treatment facilities
The present invention relates to the techniques of treating a liquid material to be treated, which enables efficient fractional removal of toxic materials such as PCB in a liquid mixture. The...
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6406622 |
Apparatus for filtering a fluid
According to the apparatus, removables 12 trapped by a first filter film 10 are used as a second filter film 13 , and clogging of the first filter film 10 is prevented, and an external force...
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6383377 |
Filtering apparatus and open/close valve for the filtering apparatus
A filtering apparatus including a filtering vessel, wherein a precoat filtering layer is formed with a filter aid on a filtering bed between a nonfiltered liquid chamber where a nonfiltered liquid...
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6332977 |
Apparatus for steam sterilizing and recycling leaf-filter aids
Steaming filter aid cakes in-place in a pressure leaf filter is a simple, inexpensive, and reliable technique for insuring that all collected pathogens are destroyed and never released back into...
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6244929 |
Chemical-mechanical-polishing system with continuous filtration
A chemical-mechanical-polishing system having a slurry distribution system, a polisher, a deionized water supply, and a drain, includes a slurry filtration system. The filtration system has two...
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6238575 |
Antimicrobial treatment of enclosed systems having continuous or intermittent fluid flow
An enclosed fluid system that is resistant to the formation of biofilm at any and all points of contact between system components and the fluid stored or transported therethrough. The enclosed...
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6149802 |
Solvent recovery apparatus and method
A solvent recovery apparatus for recovering low volatility solvent from a washing fluid slop includes a settling system and a filtering system. The settling system includes one or more settling...
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6117459 |
Filtration adjuvants, filtration supports, filtration process using them and process for regenerating said adjuvants
The invention relates to new regenerable filtration adjuvants which are usable for the filtration of liquids, particularly beer at the end of the secondary fermentation storage, characterized in...
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5908561 |
Purified natural glass product
This invention relates to purified natural glass products having low concentrations of soluble substances. More particularly, this invention relates to purified natural glass products having low...
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5902482 |
Back-flushable filter cartridge and method of back-flushing same
A back-flushable filter cartridge includes a cylindrical exterior fluid-permeable filter media cage, a cylindrical interior fluid-permeable core element coaxially disposed within the filter media...
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5882528 |
Method for extending useful life of filter aid in a filter with hydraulically deformable system
A device for filtering fluid includes a hollow housing having a fluid inlet and a fluid outlet. A filter element formed of fluid permeable material is disposed within the housing for filtering...
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5871641 |
Fluid filter with pleated septum
A device for filtering fluid includes a hollow housing (10) having a fluid inlet (26) and a fluid outlet (28). A filter element (50) formed of fluid permeable material is disposed within the...
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5772867 |
Fluid filtering machine with filtering membrane controlled by PLC
A fluid filtering machine is provided with a filtering membrane made up of filtering substance that collects on a filtering core in a filtering tank and is controlled by a programmable logic...
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5653889 |
Process for filtering polyamide oligomers from aqueous streams containing the same
A filter element surface is coated with particulate polyamide which serves as a filter aid to trap polyamide oligomers suspended in water. The particulate polyamide is preferably coated onto a...
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5632891 |
Self venting septums for use in a liquid filtration system
A septum adapted to be pre-coated with a filter and/or chemical treatment composition is formed of a tubular core member having a top and a bottom end. A plurality of top openings is provided in...
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5589076 |
Method and apparatus for optimizing operation of a filter system
A method and apparatus for optimizing operation of a filter system supplying filtered fluid to a process system characterized by varying demands for filtered fluid, a pump being operable at a...
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5552056 |
Filter element having an ion exchange yarn winding layer
The present invention provides a filter element that comprises a center core and at least one layer of ion exchange yarn wound about the center core. In a preferred embodiment, more than one...
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5534144 |
Tubular filter arrangement with liquid distributing casing
A unit for treating liquid comprises a cylindrical container (1) which, in an upper chamber (6), has a set of slender tubes (8) which the liquid is forced to pass on its way from an inlet (10) to...
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5498332 |
Precoating head
The present invention relates to precoating head for forming a filter cake in a filter carrier, with the precoating head comprising an inlet nozzle for the filter aid and a deflection element...
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5453184 |
Filter carrier
The present invention relates to a filter carrier 1 for the construction of a filter tower 9. To simplify the construction on the whole, the invention provides for a seal which is arranged on the...
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5445745 |
Filtering method for filtering liquids
The present invention refers to filtering method and a filter device for filtering liquids, especially beverages. The filtering method and the filter device are to be reliable and simple without...
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5399260 |
Field portable water purification system
A mobile water filtration and chlorination system in modular form provides a universal water treatment, pump and distribution system.
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5397465 |
Diatomaceous swimming pool filter with regenerative plates
A filter including one or more regenerative plates which can be moved along the surfaces of filter grids to simultaneously create turbulence and physically dislodge a filter media cake within the...
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5389268 |
Filter aid including specific silica gel
The present invention provides a novel filter aid which has excellent filtration properties and forms a stable cake layer on a filter member. The filter aid includes a flake-like, scale-like, or...
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5389243 |
Self-regenerating pressurized filtering system for liquids
A filter system includes a fluid-tight housing with filter elements supported in said housing and dividing the interior of the housing into first and second chambers. A pump pumps a liquid under...
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5385678 |
Filter material
A granular filter aid composition for filtering liquids composed of a major amount of phosphorylated starch and minor amounts of silica gel and cellulosic fibers.
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5384034 |
Candle precoated filter for residual volume filtration
A candle type precoated filter for residual volume filtration has a pressure vessel having a cylindrical upper part and a conical base, a plurality of filter elements arranged substantially...
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5376278 |
Filter and a method for separating charged particles from a liquid stream
The invention provides a method for separating metallic corrosion products from a water stream. A filter conditioned with a relatively small amount of ion exchange material exhibits comparatively...
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5368693 |
Apparatus for treating white water
White water from a paper machine is treated in an improved fiber recovery process, i.e., the "save-all" process. Prior to the mixing of sweetener stock into the white water the sweetener stock is...
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5366632 |
Glass microbead filter and method of filtering
A layered filter composite comprises a filter medium, and on the upstream surface thereof a homogeneous or graded layer of nonporous spherical glass microbeads as a filter aid. A method for...
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5346624 |
Method and apparatus for treatment of aqueous solutions
A method and apparatus for removing ionic and suspended particulate impurities from a liquid by directing the liquid through a bed including a mixture of ion exchange fibers and inert fibers. The...
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5342514 |
Electrical filter
A filter (10) comprises a stack of flat rectangular filtrate-collecting chambers (12) defined by sheets (26) of stainless steel filter medium, and connected via respective thyristors (54, 58) to a...
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