| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210266000 | With spaced non-particulate separating means | 25 |
| 20080245722 | WASTEWATER FILTERING APPARATUS - A filtration apparatus including a tubular element ( | 10-09-2008 |
| 20080277331 | Multisectional Filtering Device - This invention relates to systems for division of the materials mixed in the fluid medium being filtered, for example, for purification of water at power stations. | 11-13-2008 |
| 20080302714 | WATER TREATMENT APPARATUS - A water treatment apparatus includes a housing comprising multiple housing portions and a plurality of treatment sections disposed within the housing, each treatment section comprising at least one distinct particulate layer. The apparatus is designed so that no water pressure need be applied to force the water through the apparatus, as gravity pulls the water down through the filtering layers. Water may also be force fed through the treatment apparatus; when the water is force fed, the housing portions need not be vertically stacked, but may be configured in any suitable arrangement. The treatment sections are distributed through the various housing portions in logical groups to perform various kinds of filtering. The housing portions are detachable and sealably stackable in multiple configurations, thus passing water through more or fewer treatment layers, depending on the quality of the incoming water. | 12-11-2008 |
| 20090001011 | GRAVITY FLOW FILTER - A gravity-fed carbon block water filter in one embodiment includes a filter block comprising multiple sub-blocks each comprising filter media walls surrounding and defining a cavity for receiving fluid. Each of the sub-blocks is connected to at least one other of the sub-blocks by filter media of which the filter block is made. In one approach, the filter media includes about 20-90 wt % activated carbon, and about 5-50 wt % binder. In another approach, a lead concentration in a final liter of effluent water filtered by the filter is less than about 10 μg/liter after about 151 liters (40 gallons) of source water filtration, the source water having a pH of 8.5 and containing 135-165 ppb total lead with 30-60 ppb being colloidal lead greater than 0.1 μm in diameter. A gravity-fed water filter in other embodiments has no specified shape but achieves a FRAP factor of about 350 or less. | 01-01-2009 |
| 20090020471 | DIALYSATE REGENERATION SYSTEM FOR PORTABLE DIALYSIS - A dialysate regeneration chamber is provided. In one embodiment, the dialysate regeneration chamber may include a toxin trap configured to selectively trap toxins and repel select cations. | 01-22-2009 |
| 20090294348 | CONTAMINANT ADSORPTION FILTRATION MEDIA, ELEMENTS, SYSTEMS AND METHODS EMPLOYING WIRE OR OTHER LATTICE SUPPORT - A contaminant adsorption is provided that includes a self-assembled monolayers on mesoporous supports (SAMMS) on a lattice support structure such as sintered metal wire mesh. Individual wire fibers of the sintered wire mesh may have a film coating of mesoporous material that is functionalized for a target metal. The mesh material is formed into filtration elements with or without particulate filtration media. Systems employing such filtration elements in one or multiple stages are also disclosed with an optional acid was stripping system for regenerating SAMMS and to facilitate reclamation of contaminants that can be refined into usable commercial materials. | 12-03-2009 |
| 20100000931 | POTABLE LIQUID DISPENSER - A potable liquid dispensing apparatus includes a housing configured to be coupled to a source of potable liquid. A filter is disposed within the housing for the passage of the potable liquid. | 01-07-2010 |
| 20100230343 | WATER TREATMENT APPARATUS - A water treatment apparatus includes a first treatment tank forming thereon a first, fixed bed includes a powdery phosphorus adsorbent includes an inorganic layered compound, wherein the first bed separates phosphorus and solid matter from the water, and recovers the phosphorus in a state adsorbed on the phosphorus adsorbent in the first bed, a second treatment tank forming a second, fluidized or fixed bed includes the phosphorus adsorbent, wherein the second bed separates phosphorus from the water received from the first treatment tank, and recovers the phosphorus in a state adsorbed on the phosphorus adsorbent in the second bed, and a transferring line configured to transfer the phosphorus adsorbent, having phosphorus adsorbed thereon in the second treatment tank, from the second treatment tank to the first treatment tank. | 09-16-2010 |
| 20100258494 | Packing Material for a Micro-Adsorption Column for Drying and/or Purification of Dissolved Organic or Biological Analytes and Micro-Adsorption Column and use thereof - The invention relates to a packing material for a micro-adsorption column for drying and/or purification of dissolved organic or biological analytes, such as toxins, antibiotics, vitamins, hormones, pesticides and similar, containing at least one drying agent which contains magnesium sulphate and at least one further drying agent selected from the group comprising aluminium oxide, calcium chloride, calcium hydride, calcium oxide, calcium sulphate, potassium hydride, silica gel, copper sulphate, magnesium oxide, magnesium perchlorate, molecular sieves, sodium hydroxide, phosphorus pentoxide, sulphuric acid on silica, phosphorus pentoxide on silica and 0.5 to 90 wt. % of a naturally-occurring or synthetic support with large internal surface such as zeolite, diatomic earths, bentonite, silicon dioxide or similar. The invention further relates to a micro-adsorption column packed with the above and use thereof. | 10-14-2010 |
| 20100282662 | APPARATUS FOR PURIFYING BLOOD - The present invention relates to an apparatus for, after separating plasma from blood using a plasma separation filter, purifying the blood by discharging various kinds of toxic substances from the separated plasma using an anion exchange resin filter and a charcoal filter, and more particularly, to an apparatus for purifying blood configured to be capable of miniaturization and be conveniently used by installing the plasma separation filter, the anion exchange resin filter, and the charcoal filter in a housing. | 11-11-2010 |
| 20110253615 | Filter cartidge, in particular for purifying dental waste waters - A filter cartridge, which is suitable in particular for purifying dental waste waters, has a housing with three different spatial regions which receive three different filter materials having different filter properties. The first filter material is preceded by a sedimentation space. | 10-20-2011 |
| 20120145624 | WATER FILTER CARTRIDGE - A water filter cartridge includes a hollow cylindrical first filter for removing particulates and other foreign matter from the water and comprising an axial space, an open outlet at one end, and a closing cap at the other end; a second filter for filtering chlorine, odor, color, and organic contaminants from the water and disposed in a lower portion of the space, the second filter being a hollow cylinder and comprising an open bottom, an open top, and an axial space; and a cylindrical filtering block for removing microorganisms from the water and disposed between the outlet and the second filter, the filtering block comprising a waterproof layer on an outer surface and a sponge member filled in a space defined by the waterproof layer. | 06-14-2012 |
| 20130284659 | ADSORBENT FOR THE REMOVAL OF BLOOD CELLS - A blood cells removal module including a casing having an inlet into which a blood flow before blood cells removal flows, and an outlet in which a blood flow after blood cells removal is discharged, an adsorbent for blood cells removal of short fiber shape accommodated in the casing, a mesh being provided inside the inlet and the outlet, respectively, and holding the adsorbent for blood cells removal in the casing, wherein a length of the adsorbent for blood cells removal is within a range from 1 to 60% of the internal diameter of the casing. | 10-31-2013 |
| 20130292317 | Stormwater Catch Basin Filter for Capturing Heavy Metal Contaminants - A catch basin filter having a bag member with a plurality of compartments, the compartments containing heavy metal recovery material, whereby heavy metals in liquid passing through the compartments are filtered from the liquid stream or neutralized. | 11-07-2013 |
| 20130299410 | SPIRAL WOUND TYPE FILTER CARTRIDGE - Disclosed herein is a spiral wound type filter cartridge and more specifically, a spiral wound type filter cartridge in which activated carbon fiber is provided. The inside of spiral wound type filter cartridge is capable of serving as a carbon filter in a water purifier, thus eliminating the necessity of the use of any carbon filter for pre- or post-treatment in the process of purifying raw water, reducing an overall size of the water purifier and considerably reducing costs associated therewith. | 11-14-2013 |
| 20140014566 | GRAVITY FILTER - Embodiments of a gravity filter for potable water comprise a loose filter bed comprising ion exchange resin particles and activated carbon particles, and a porous non-woven filter substrate disposed downstream of the loose filter bed, wherein the porous non-woven filter substrate comprises an impregnated heavy metal scavenger. | 01-16-2014 |
| 20140027368 | WATER FILTER HOUSING SIEVE - A gravity flow water filtration cartridge with a novel sieve system. The sieve system comprises an air vent and a shroud. The sieve system is attached or welded onto a housing bottom or barrel. An air permeable material covers the opening of the air vent. | 01-30-2014 |
| 20140124428 | UNIHOUSING PORTABLE WATER FILTRATION SYSTEM - A water improvement/purification container has: a) an elongated housing; b) a water entry; c) two water exit ports adjacent one distal end of the housing; d) the water port providing supply water first to a macrofilter within the housing; e) the intermediate water source exiting the macrofilter flowing into a reverse osmosis membrane; f) the intermediate water being separated into two streams, g) the first stream being vented through the second of the two water exit ports; and h) the second stream being vented out of the housing as waste water through the first of the two water exit ports. | 05-08-2014 |
| 20140202949 | Composite Filter Apparatus - A composite filter apparatus includes a container with a receiving space, and top and bottom openings communicated with the receiving space. A filter member includes a filter core in the receiving space, a blocking member on a top end of the filter core, and a retainer plate on a bottom end of the filter core. The receiving space is divided by the blocking member into an upper receiving space that communicates the top opening of the container, and a lower receiving space that surrounds the filter core and that communicates the bottom opening. Activated carbon particles are filled in the upper and lower receiving spaces. | 07-24-2014 |
| 20140217005 | WATER PURIFICATION CARTRIDGE AND WATER PURIFIER - The objective of the present invention is to provide a water purification cartridge with excellent water permeability and processing capability. The present invention relates to a water purification cartridge positioned between a raw water reservoir and a purified water reservoir of a water purifier and having a container to accommodate an adsorbent and a hollow-fiber membrane for filtering raw water. Such a water purification cartridge includes an adsorber section in which the adsorbent is positioned and which has a water collector section through which the water filtered by the adsorbent flows; a hollow-fiber membrane section in which the hollow-fiber membrane is positioned and which is located on the downstream side of the adsorber section and the water collector section; and an air outlet positioned on the upper side of the container and connected to the space in the water collector section. | 08-07-2014 |
| 20140263022 | OIL DETERIORATION PREVENTION DEVICE - An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit including a filter element that filters oil, and a deterioration prevention unit including a powdery deterioration prevention agent that prevents deterioration of oil, wherein the deterioration prevention unit includes a passage wall that retains the deterioration prevention agent and forms an oil passage. | 09-18-2014 |
| 20150083655 | OIL DEGRADATION PREVENTION DEVICE - Provided is an oil deterioration prevention device with which the trapping effect with respect to oil deteriorated components can be improved and with which the oil passage resistance can be reduced, thereby suppressing a rise in pressure loss. This oil deterioration prevention device is equipped with a filter unit equipped with a filter material that filters oil; and a deterioration prevention unit equipped with a powdery deterioration suppressing agent that suppresses oil deterioration. The deterioration prevention unit contains a mesoporous inorganic material, and of the oil fed from an oil storage unit, the oil filtered by the filter unit is fed to parts which are to be lubricated, and the oil in which deterioration has been suppressed by the deterioration prevention unit is returned to the oil storage unit or is fed to the parts to be lubricated. | 03-26-2015 |
| 20160017589 | LIQUID WASTE TREATMENT APPARATUS - A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system. | 01-21-2016 |
| 20160376162 | FILTER ASSEMBLY FOR FILTER AS YOU POUR FILTRATION - A filter housing can be configured to receive a filter media to form a filter assembly. Water filter media assemblies can be adapted for filter-as-you-pour filtration in the context of container (e.g., pitcher) systems where filtering is achieved as the user pours water from the container. The filter housing can have a frame and an optional casing securable about the frame. The filter assembly can include a filter media within, connected to, or associated with a filter housing. The filter media can be securable in an at least partially curved configuration and/or within, connected to, or associated with the filter housing. | 12-29-2016 |
| 20190144298 | HIGH-STRENGTH INTEGRATED WATER CHANNEL PACK | 05-16-2019 |
