Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8083952 | Filter bowl supports and filter systems comprising the same A support for supporting and positioning a filter bowl of a filter system may include a bracket body, a rod, an extension arm threadably connected to the rod and a support band connected to and rotatable with respect to the extension arm. The bracket body may includ... | 12/27/2011 |
| 8052879 | Apparatus and method for increasing filter capacity using ultrasonic regeneration A filter system and associated methods of filtering utilize a combination of ultrasonically enhanced backwashing and a modified filter media configurations for increasing the specific loading on a portion of the filter media, thereby tending to increase the total pa... | 11/08/2011 |
| 8002996 | Self cleaning pump vault for a septic tank A self-cleaning discharge system used with a wastewater treatment system. The wastewater treatment system includes a tank for collecting wastewater while the wastewater typically includes solid particles. The discharge system comprises a housing, a filter positioned... | 08/23/2011 |
| 7993532 | Method of filtration using cloth media and self-aligning backwash assembly The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth f... | 08/09/2011 |
| 7871527 | Processes for water and wastewater treatment, including stationary cloth media filtration The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing. ... | 01/18/2011 |
| 7833424 | Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media The present invention relates to a method for cleaning cloth filter media supported on a plurality of opposingly-spaced filter plate frames. A backwash assembly (23) moves linearly and includes at least one cylindrical backwash arm (200) that rotates t... | 11/16/2010 |
| 7820062 | Tertiary filter A filter cloth of long pile fiber bundles is used as a tertiary filter in a wastewater processing method. The filter may be backwashed by a rotating suction head which does not touch the filter cloth. A combination of countercurrent and horizontal flow dislodges ent... | 10/26/2010 |
| 7815811 | Trash rake system for clearing intake racks and the like A powered trash rake system for clearing debris from intake racks used for screening debris from water intakes and other similar structures. The trash rake system includes a telescoping boom mounted to a movable carriage support structure. Electric motors are provid... | 10/19/2010 |
| 7678284 | Tertiary filter A filter cloth of long pile fiber bundles is used as a tertiary filter in a wastewater processing method. The filter may be backwashed by a rotating suction head which does not touch the filter cloth. A combination of countercurrent and horizontal flow dislodges ent... | 03/16/2010 |
| 7473375 | Method and device for removal of residual products The residual material in a filter-dryer (1) is removed from the screen (15) by careful scraping with a lasso like belt (20). The scraped material will be removed through a side opening (16). To gain this remaining material adds to the yie... | 01/06/2009 |
| 7455784 | Liquid/solid separator and method A liquid/solid separator system mounted on a mobile cart and connected to a process tank for reducing the rate at which fluids are consumed in manufacturing processes. The system may include automation and also may include a shear-stepped screen including tilted wir... | 11/25/2008 |
| 7429324 | Device for in-line preparation of liquid for an extracorporeal blood treatment apparatus A method for in-line preparation of liquid for an extracorporeal blood treatment apparatus that makes provision for placing a filter in correspondence with each of two successive filtration stations, for carrying out a liquid preparation cycle, for removing the filt... | 09/30/2008 |
| 7413656 | Aerobic sewage system An aerobic system provided to treat sewage generated by a modern larger home which does not have access to a municipal sewage connection The features of this system are adaptable to upgrade and/or replace existing systems. In a preferred embodiment the system uses t... | 08/19/2008 |
| 7404904 | Method and apparatus to clean particulate matter from a toxic fluid There is a method of capturing, removing or collecting the particulate matter from a fluid containing a toxic liquid reaction and particulate matter produced from the reaction. The method includes partly or completely disposing a screen into the toxic fluid. Mixing ... | 07/29/2008 |
| 7399419 | Modular filtration system A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid commun... | 07/15/2008 |
| 7381335 | Method and arrangement for continuous filtering of particles out of a liquid Method and arrangement for continuous filtering of particles out of a contaminated liquid by means of a number of separate filtering units (14) in order continuously to feed purified liquid to a consumer. Each filtering unit (14) comprises a rotatable,... | 06/03/2008 |
| 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 gelatinous filter apparatus. In the filtration apparatus, filtration characte... | 06/03/2008 |
| 7364662 | Scraper adjustment mechanism and method A scraper adjustment mechanism and method for a filter that permits an operator to adjust the distance between the scraper and a filter surface without the need to have access to the filter/scraper interface, or fasteners within the filter. ... | 04/29/2008 |
| 7361282 | Separator of floating components A buoyant component separator is disclosed for removing at least some floating contaminants from fluids. The component separator may be used with a marine engine exhaust system to reduce particulate matter and unburned fuel contained in liquid coolant before it is j... | 04/22/2008 |
| 7357694 | Jet singulation Techniques for singulating a substrate into a plurality of component parts is disclosed. The singulation techniques include generating a jet stream in order to cut through large components so as to produce smaller components. The techniques are particularly suitable... | 04/15/2008 |
| 7356865 | Apparatus and method for removing contaminants from dry cleaning solvent The present invention relates to a method and apparatus for removing contaminants from a solvent based cleaning fluid. An article cleaning apparatus comprises an ultrafiltration filter having a pore size of about 0.01 microns to about 0.2 microns. A method for perfo... | 04/15/2008 |
| 7354513 | Countertop water treatment unit An improved residential countertop water treatment unit for producing potable water suitable for human ingestion such as by drinking or cooking that comprises a vertical arrangement of a base, a cartridge, and a spigot at the top. The base includes an elongated thre... | 04/08/2008 |
| 7347933 | Self-cleaning intake screen A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability is accomplished by using a fixed brush on the exterior surface of the... | 03/25/2008 |
| 7332007 | Dusting device with multiple stream nozzles A dedusting device 1 with a demister 15 advantageously arranged standing obliquely has a very compact construction because sufficient moistening or wetting of dust-containing crude air 24 is possible through the use of intensively acting multipl... | 02/19/2008 |
| 7326265 | Method for cleaning the upstream surface of a particulate filter The invention concerns a method for cleaning the upstream surface (14) of a particulate filter (10) of a heat engine exhaust line, the filter (20) being arranged in a casing (12) having an outlet (22) for exhaust gases. The method ... | 02/05/2008 |
| 7326338 | Low cost oil/grease separator A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional c... | 02/05/2008 |
| 7323110 | Wastewater treatment process using core-shell particles The present invention relates to a method of treating inorganic and organic compounds in wastewater, such as leachate. The treatment method involves the use of a amphiphilic particles that consist of hydrophobic cores and amine-containing polymer shells. The method ... | 01/29/2008 |
| 7320760 | Cleaning efficiency testing method and apparatus for a filter in a filtering system A method and an apparatus are provided for testing the efficiency of a cleaning procedure for a filter in a filtering system. After the cleaning procedure of the filter, the filter pores contain a fluid. The system is pressurized, and a decay in pressure over a pred... | 01/22/2008 |
| 7311823 | Pool filter cleaning device A pool filter cleaning device (1) which allows a person to thoroughly clean a filter cartridge (15) quickly and easily with minimal amount of splash back. The pool filter cleaning device (1) is comprised of a handle (2), an angled head se... | 12/25/2007 |
| 7309366 | Bag cleaning compressed air nozzle A process and apparatus for cleaning filter cake from the interior of a baghouse bag. A nozzle through which compressed gas flows is positioned on the interior of a bag such that gas is directed to, and thereby disrupts, the filter cake. The compressed gas flows in ... | 12/18/2007 |
| 7303672 | Liquid/solid separator and method A liquid/solid separator system mounted on a mobile cart and connected to a process tank for reducing the rate at which fluids are consumed in manufacturing processes. The system may include automation and also may include a shear-stepped screen including tilted wir... | 12/04/2007 |
| 7300585 | Method of treatment of effluent stream A method for treating an effluent stream containing material which it is desired to remove from the effluent stream comprises treating the effluent stream with a solution of an acid and a first polymer to reduce the pH of the thus-treated stream to a range of about ... | 11/27/2007 |
| 7282155 | Device and a method for filtering a fluid A device for filtering a fluid includes a fiber housing having an inlet end with at least one inlet and an outlet end with at least one outlet. The fiber housing surrounds and defines an outer bound for a plurality of fibers extending longitudinally in the fiber hou... | 10/16/2007 |
| 7282086 | Fluid filter cleaning apparatus A filter cleaning apparatus for cleaning a filter using cleaning fluid comprises a housing, a filter holder for holding the filter, wherein the filter holder is mountable in the housing, a rotating means for rotating the filter holder, wherein the filter holder hold... | 10/16/2007 |
| 7276154 | Settling grid separator A settling grid separator apparatus and method of use which provides deep dehydration of high flow rate sludge in an environmentally friendly and energy efficient manner. The apparatus and method comprise and utilize an efficient mixing of the sludge with a floccula... | 10/02/2007 |
| 7275400 | Washing apparatus The present invention relates to an apparatus for treating, refreshing or cleaning fabric articles, especially articles of clothing, linen and drapery. ... | 10/02/2007 |
| 7276171 | Method for cleaning separation membrane When an out-of-basin type separation membrane, which is connected to a biological treatment tank through a circulation passageway for filtering tank water, is cleaned, a part or all of the backwash drainage containing the sludge peeled from the membrane surface is r... | 10/02/2007 |
| 7276223 | Method and device for chemical reaction between a gas and at least one compound in solution carried out in the presence of a solid catalyst A gas/liquid reaction with a liquid containing at least one chemical compound in solution which can react with a gas in the presence of a solid catalyst maintained in suspension in the liquid, the reaction being carried out with separation (recovery) of said solid c... | 10/02/2007 |
| 7273554 | Crossflow-filtration method for beverages The invention relates to a crossflow-filtration method for beverages, in particular beer, which comprises the following steps: a) the feed liquid is introduced into a filter module by means of a tangential flow through a filter membrane (6) in a first directi... | 09/25/2007 |
| 7264645 | Plate-shaped filter element A plate-shaped filter element made from several wire cloth layers and having at least one layer in the form of a filter cloth is designed to allow particles of a certain size can be filtered out from a filterable material, whereby, in particular, particles can be fi... | 09/04/2007 |
