Quotables
"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7364654 | In-home water treatment system A method and apparatus are provided for a water treatment system that includes both filtration and ultraviolet disinfection elements in a single unit. Various embodiments include a complete treatment system having replaceable filter elements or granular filter media... | 04/29/2008 |
| 7361281 | High efficiency ion exchange system and method for removing chromium from water The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to anothe... | 04/22/2008 |
| 7276160 | Method and apparatus for metal removal by ion exchange The present invention provides a method for selectively removing metal ions of interest from a solution (12), such as the wastewater from a chemical mechanical polishing process. The method comprises contacting a solution (12) containing solid particle... | 10/02/2007 |
| 7270745 | Liquid filtration apparatus embodying super-buoyant filtration particles Presented is a liquid filtering apparatus and method that overcomes the disadvantages encountered with prior bed filtration systems by providing a filtering apparatus that incorporates a super-buoyant filter medium having a specific gravity very substantially lower ... | 09/18/2007 |
| 7204930 | Water purification system and method An oxidation filtration system for cleaning groundwater, the system having an aeration tower and a filtration tank. Within the filtration tank is an upper chamber and a lower chamber. Contained within the lower chamber is a plurality of Styrofoam™ filter media. Se... | 04/17/2007 |
| 7160441 | Urban runoff water treatment methods and systems The apparatus and methods of the present invention enable efficient and appropriate treatment of Urban Water Runoff, so that the treated Urban water Runoff can be can be introduced into public waterways without contaminating such waterways. The system apparatus util... | 01/09/2007 |
| 6706195 | High efficiency ion exchange system for removing arsenic from water The disclosed invention is a fixed bed ion exchange system from removing arsenic from water. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating posi... | 03/16/2004 |
| 6638422 | Liquid filtration apparatus and method embodying filtration particles having specific gravity less than liquid being filtered A liquid filtering apparatus which incorporates a filter bed medium having a specific gravity lower than that of the process liquid being filtered. Process liquid is pumped through one or more filter chambers containing the filter bed medium. A discharge ... | 10/28/2003 |
| 6521126 | Pipe gallery for water filtration systems A pipe gallery includes an exterior peripheral wall containing a gallery upper chamber, a backwash waste chamber, and a gallery lower chamber. A gallery influent line and filter influent pipes are connected to the gallery upper chamber. A backwash drain l... | 02/18/2003 |
| 6238556 | Filtration system including a back washable pre-filtration apparatus A filtration system for filtering particulate matter from a liquid, the filtration system comprises a pre-filtration apparatus and a main filtration apparatus. The pre-filtration apparatus comprises a vessel having a fluid inlet, a fluid outlet, and a bac... | 05/29/2001 |
| 6238560 | Collapsible filter element assembly A filter element assembly (10) has at least two cylindrically-shaped and concentrically-arranged filter media sleeves (11, 12), each connected at one end thereof to an inlet plate (13) and each connected at the other end to a terminal plate (20). Openings... | 05/29/2001 |
| 5932092 | Filtering apparatus having positively buoyant and negatively buoyant particulate An apparatus for filtering contaminated fluids is provided. In a filtering mode, contaminated fluid is introduced into a vessel housing a bed of positively buoyant particulate material and a bed of negatively buoyant particulate material in a spaced apart... | 08/03/1999 |
| 5910244 | Adaptable control valve for fluid treatment system A control valve for a fluid treatment system, such as a water softener or a water filter, includes a manifold which mounts a pair of open-ended, cylindrical valve bodies having ports in fluid communication with passages in the manifold. Interchangeable si... | 06/08/1999 |
| 5833867 | System and method for backwashing multiple filtration vessels A filter media washing system for washing contaminants from filter media of a plurality of filtration vessels. Each filtration vessel has a filtration screen subdividing the filtration vessel into a filter media containing chamber and a filter media-free ... | 11/10/1998 |
| 5759387 | Grey water filter tank recovery system and filter backwashing system A grey water recovery system comprises a filter tank having a filter medium therein. Grey water is delivered to the filter tank by a delivery conduit and filtered grey water is collected in a sump which surrounds the filter tank. A pump removes the filtra... | 06/02/1998 |
| 5591347 | Single cell gas flotation separator with filter media A simplified single cell apparatus and method for removal of suspended impurities in liquids using gas flotation and filtration is provided wherein the method and apparatus are preferably directed to induced gas flotation separation of suspended impuritie... | 01/07/1997 |
| 5516434 | Single cell gas flotation separator with filter media A simplified single cell apparatus and method for removal of suspended impurities in liquids using gas flotation and filtration is provided wherein the method and apparatus are preferably directed to induced gas flotation separation of suspended impuritie... | 05/14/1996 |
| 5449453 | Plastic media filter A filter for removal of biochemical oxygen demand and suspended solids utilizing multi-layer filtration media. The filter media includes plastic particles, sand, and garnet and is operated under an automatic control condition. Fine filtering is accomplish... | 09/12/1995 |
| 5445740 | Floating media biofilter A floating media biofilter is provided, comprising a tank having a bottom and a sidewall, the sidewall having a lower portion inwardly sloping toward the bottom. Floating media are present in the tank for forming a media pack when the tank is filled with ... | 08/29/1995 |
| 5382366 | Retardation installation with compressed air-diaphragm pump and stroke count device In a retardation installation having a container holding the adsorber material capable of accepting acid, in particular adsorber resin, and a feed for a watery acid-salt-solution, for example from an anodizing bath, a further feed for a regenerating solut... | 01/17/1995 |
| 5350505 | Plastic media filter A filter for removal of biochemical oxygen demand and suspended solids utilizing multi-layer filtration media. The filter media includes plastic particles, sand, and garnet and is operated under an automatic control condition. Fine filtering is accomplish... | 09/27/1994 |
| 5252231 | Process and reactor for water treatment using a granular bed adapted to float during cleaning A process for the treatment of water using a granular bed (3) of granular support materials of a volumic mass less than that of the water to be treated. According to this process, each washing cycle comprises interrupting the withdrawal of treated water a... | 10/12/1993 |
| 5147530 | Well water removal and treatment system The well water removal and treatment system of the present invention includes a pumping and well water withdrawl loop consisting of an above ground pump, a pressurized water drive line from the pump outlet to a well water ejector, a water return line from... | 09/15/1992 |
| 5122287 | Filtration system The filtration system provides a long horizontal flow path through buoyant filter media. The filter media is contained in a vessel and the relationship between the water level in the vessel and the amount of filter media is such that the media extends com... | 06/16/1992 |
| 5069796 | System for removing volatile components from water derived from wells A unitized system for the processing of well water that is contaminated with volatile substances, such as organic substances, at a site where the contaminated water exists. This system has the primary components thereof mounted on a skid/frame that can be... | 12/03/1991 |
| 5009776 | Filter system A filter system for achieving continuous filtering by the provision of three filter chambers disposed about a common vertical axis, each containing a filter bed comprised of buoyant particles through which the fluid to be filtered is passed in an upward d... | 04/23/1991 |
| 5006240 | Water-treatment system The invention contemplates a water-treatment system wherein inlet water is subjected to continuous circulation, or at least to a plurality of cycles of circulation, in a loop wherein air under pressure is injected into the water prior to passage through a... | 04/09/1991 |
| 4896435 | Replaceable wear parts for centrifugal pellet dryers Improvements in centrifugal pellet dryers including replacement parts for those areas of a centrifugal pellet dryer that are most subject to wear during normal use when drying pellets. The feed chute, base section and top section with pellet discharge chu... | 01/30/1990 |
| 4885083 | Single chamber filter vessel A single chamber filter module containing a buoyant bed of filter particles through which the fluid to be filtered is passed in an upward direction through the bed so that the solids become trapped within the bed. The filtrate is withdrawn from the upper ... | 12/05/1989 |
| 4780219 | System for filtering suspended solids from a liquid A filtration system and method for the removal of suspended solids from a contaminated liquid in which the contaminated liquid is pumped into the top of a vessel and allowed to flow through a bed of polyethylene particles which acts as a filtering medium.... | 10/25/1988 |
| 4744897 | Sweeper type apparatus for clearing the deposition formed on the bottom of a pond An apparatus for clearing the deposition formed on the bottom of a pond comprises a filter device for filtering the deposition, a suction water tube provided in the filter device with a plurality of suction pipes radially connected to one end thereof and ... | 05/17/1988 |
| 4663033 | Reactivateable adsorption filter assembly A reactivateable adsorption filter assembly comprises an adsorption filter element, a storage vessel in which is stored filtered fluid, a flow restrictor to restrict the flow of fluid between the adsorption filter element and the storage vessel and a purg... | 05/05/1987 |
| 4643836 | Radial flow filter having air fluidizing backwash means A filter for removal of suspended solids from fluids utilizes pressurized air for fluidizing filter media as the latter is exposed to backwashing water. The filter includes a casing having upright walls defining an annular chamber in horizontal cross-sect... | 02/17/1987 |
| 4634528 | Filter for intra-channel clarification A filter for use in conjunction with an intrachannel clarifier is provided comprising an enclosure, positionable within a channel and connectible to an intrachannel clarifier, and having a floor and sides; a filter compartment fixed within the enclosure, ... | 01/06/1987 |
| 4617131 | Method and system of cleansing a filter bed An improved method of cleansing a filter bed is herein provided utilizing a backwash pump (12) having an inlet line (14) and an outlet line (16). The improved method and system includes two cycle operations. Initially, the filter bed is backwashed to remo... | 10/14/1986 |
| 4454033 | Filtering apparatus Apparatus for continuous filtration of a fluid, for example water containing solids, comprising a plurality of filter cells partially filled with mobile filtering material, each cell having an inlet and an outlet, means being provided for continuously sup... | 06/12/1984 |
| 4434051 | Multiple valve apparatus for simulated moving bed adsorption processes An apparatus is disclosed which is useful in simulating the countercurrent flow of several fluid streams through a bed of solid contact material such as a selective adsorbent. The apparatus comprises a plurality of multi-port valves and is used to direct ... | 02/28/1984 |
| 4409033 | Simulated moving bed separation process for high viscosity feed streams An improvement is achieved in the operation of a process for the adsorptive separation of different components of a viscous high density feed stream, such as the separation of fructose from an aqueous mixture containing 50 wt. % fructose and glucose, in w... | 10/11/1983 |
| 4343699 | Convertible dual container storage system A dual tank storage system is provided having a first generally cylindrical upstanding tank adapted to be positioned either adjacent to or within a second tank of larger diameter. The tanks are in fluid connection and are useful in systems requiring the s... | 08/10/1982 |
| 4326956 | Backwashable filter system The sludge water valve for closing the opening communicating with a sludge water discharge channel is disposed in that surface of the side wall of the excess head chamber which is near the solid bed of the filter system and is adapted to open with a hingi... | 04/27/1982 |
