Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7754070 | High efficiency ion exchange system for removing nitrate contaminants 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... | 07/13/2010 |
| 7252760 | Waste liquid processing method and waste liquid processing apparatus using the same A waste liquid processing method comprising a solvent separation process for separating a chlorine-based organic solvent contained in a waste liquid; a first vaporization process that includes vaporization of the chlorine-based organic solvent remaining in the waste... | 08/07/2007 |
| 7198718 | Coalescer A two phase liquid media coalescer comprises a chamber such as a pipe (1) which may be fitted into a process system by way of pressure sealable fittings (23, 24). Contained within the chamber is a coalescer media (5) manufactured from fibers of ... | 04/03/2007 |
| 7172177 | Aerator An apparatus for use in fluid agitation which may include a hollow drive shaft having a first end and a second end wherein the first end is coupled to a selectively rotatable power source, a first propeller, a second propeller and an atomizer coupled to the drive sh... | 02/06/2007 |
| 6997213 | Low cost plate assembly for rotary valve A multiport rotary valve is described providing the interconnection of a plurality of conduits with a predetermined cycle. The valve uses a stack of plates defining channels and ports to form the fluid circuits. ... | 02/14/2006 |
| 6814864 | Extra-corporeal blood purification device An extra-corporeal blood purification device includes a blood filter, and elements for measuring at least one parameter affected by filter resistance to liquid flow, elements for determining at least a threshold value of the parameter, elements for comparing the par... | 11/09/2004 |
| 6793827 | Method and device for preparing a medical fluid A method for extracorporeal treatment of blood includes preparing a treatment liquid from a liquid and two concentrated solutions by circulating the liquid in a preparation conduit at a flowrate Q0; injecting a first concentrated solution containing at least ... | 09/21/2004 |
| 6706171 | Systems for treating wastewater in a series of filter-containing tanks This invention relates to systems for treating wastewater and more particularly to removing nutrients from wastewater in a wastewater treatment system. Wastewater tanks, each having membrane filters, are arranged in series. Each tank is equipped with respective inle... | 03/16/2004 |
| 6544413 | Simulated moving bed device This invention provides an ultra-micro simulated moving bed apparatus employing valve devices, each of which is applied to each unit column and comprises an eluent valve that opens or closes a first communication passage connecting an eluent feeding cul-d... | 04/08/2003 |
| 6287457 | Water treatment device having volumeter driven monitoring discs A water treatment device wherein the water during treating is brought into contact with a treatment medium (29), whereby this treatment medium (29), either by means of a regeneration medium (42) or not, is regenerated regularly and whereby, a regulator (5... | 09/11/2001 |
| 6261443 | System for handling drain waters of different degrees of contamination A drain water system includes a plurality of containers (7-9) within a building 1 for receiving respective drain waters differing in degree of contamination. A plurality of building 1 having such containers share a main drain water conduit leads to at lea... | 07/17/2001 |
| 6214214 | Water treatment system with purge valve responsive to fluid signals A water treatment system including a pair of water treatment tanks, each tank defining a flow path extending from a tank inlet to a tank outlet and containing a water treatment material disposed along the flow path for treating water as it travels from th... | 04/10/2001 |
| 6126815 | Sequential air dissolved floatation apparatus and methods Sequential DAF apparatus and methods providing zero pool and nonmechanical waste material removal are disclosed which include a number of floatation tanks each arranged to operate either independently or sequentially, each tank has a conical shaped bottom... | 10/03/2000 |
| 6036866 | Apparatus and method for fluid treatment units connected in parallel An apparatus and method for operating a system of two or more fluid treatment units connected in parallel, which fluid treatment units need to be regenerated as they become depleted, whereby a method is provided for determining when to initiate a regenera... | 03/14/2000 |
| 6004463 | Waste water treatment system and method A waste water system adapted to receive liquid waste from a septic tank or the like and purify the same. There is a primary processing section comprising a first processing tank to receive the waste water. This primary section has air operated valve means ... | 12/21/1999 |
| 5935522 | On-line DNA analysis system with rapid thermal cycling An apparatus particularly suited for subjecting biological samples to any necessary sample preparation tasks, subjecting the sample to rapid thermal cycling, and then subjecting the sample to subsequent on-line analysis using one or more of a number of an... | 08/10/1999 |
| 5876611 | Intraoperative blood salvaging system and method An apparatus is disclosed for salvaging a patient's own blood during intraoperative surgical procedures and reinfusing the blood, washed and filtered, to the patient substantially continuously, on-line and in real-time. The apparatus comprises suction mea... | 03/02/1999 |
| 5833844 | Thermally-driven ion-exchange process for lithium recovery Ions (e.g. lithium) can be removed or recovered from brines containing those ions and optionally one or more other ions (e.g. other alkali metal ions) by the use of a temperature-swing, ion-exchange process and apparatus employing an ion-exchange material... | 11/10/1998 |
| 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 |
| 5683576 | Water ozonation treatment apparatus The object of the present invention is a water treatment apparatus that integrates an ozone generator, CT and storage tanks and a microcontroller to treat water in accordance with proposed EPA test protocol under the Federal Insecticide, Fungicide and Rod... | 11/04/1997 |
| 5639377 | Water treatment system A method and apparatus for regenerating an ion exchange resin utilizing recycled solution or reused regeneration solution. At least one tank containing an ion exchange material is provided having a spaced first and second ports which define a fluid flow p... | 06/17/1997 |
| 5628899 | Control mechanism for controlling regeneration of two water treatment tanks A control mechanism for a liquid treatment system including a first tank having an inlet and an outlet and a second tank having an inlet and an outlet. The control mechanism includes an inlet passage for receiving liquid to be treated and an outlet passag... | 05/13/1997 |
| 5578201 | Apparatus for mixing liquids used in countercurrent multiphase liquid separation A reusable apparatus for multiphase, multistage countercurrent liquid separation is presented. The apparatus is particular useful in progressive multistage separation of target microorganisms from background organisms and materials with precise transfer, ... | 11/26/1996 |
| 5512168 | Programmable solid phase extraction and elution device An automated, integrated system for programmably selectively extracting and purifying one or more particular solutes from a contaminated solution, said purified solutes then being recovered as a concentrated solution suitable for analysis.... | 04/30/1996 |
| 5505846 | Plate shifter for filter press A filter press plate shifter assembly provided with a shifter housing having a center part which passes over the filter plates and housing parts positioned adjacent opposite side rails. The housing parts are rollingly supported on rods which extend along ... | 04/09/1996 |
| 5466367 | Industrial waste water treatment A waste water treatment system is illustrated which can be configured to be portable and which minimizes the addition of solids to be disposed of through the use of ozone for contaminant reduction to basic elements after the pH value of the waste water to... | 11/14/1995 |
| 5464530 | Ion exchange methods and systems incorporating regenerant recycling An ion exchanger of the countercurrent type includes a pressure vessel for supporting a resin bed. The vessel includes a first port through which water to be treated is supplied to the vessel during a production cycle, a second port through which regenera... | 11/07/1995 |
| 5443734 | Programmable solid phase extraction and elution device An automated, integrated system for programmably selectively extracting and purifying one or more particular solutes from a contaminated solution, said purified solutes then being recovered as a concentrated solution suitable for analysis.... | 08/22/1995 |
| 5423977 | Rotary filter with automatic spray cleaning device for cleaning same A continuous filtration device comprising a cylindrical filter rotationally driven around the axis thereof, a filtration tank in which an outer chamber having an inlet for a liquid to be cleaned and an inner chamber having an exit for a liquid filtrate ar... | 06/13/1995 |
| 5415765 | Water treatment system A method and apparatus for regenerating an ion exchange resin utilizing recycled solution or reused regeneration solution. At least one tank containing an ion exchange material is provided having a spaced first and second ports which define a fluid flow p... | 05/16/1995 |
| 5403489 | Solid phase extraction method and apparatus A method and apparatus for performing solid phase extraction (SPE) on a fluid that contains solubles and suspended solids. The method includes: (a) providing a volume of fluid that contains solubles and suspended solids, (b) processing the volume of fluid... | 04/04/1995 |
| 5395516 | Filtration system A filtration system for filtering dope of a solvent-spun fiber manufacturing plant in which dope to be spun flows from a source of supply (10) through a series of filter assemblies (15) (21) (23) to jets (22(b)) of each spinning heads (22). The filtration... | 03/07/1995 |
| 5385668 | Apparatus for separating particulate material from a liquid medium The invention relates to an apparatus in the form of a multi-cell installation, and a method for the recovery of metal values from a liquid medium 16 in the form of a pulp or leach solution in which a continuous supply of a liquid medium 16 is continuousl... | 01/31/1995 |
| 5354471 | Method of treating wastewater Conventional biological processes for treating wastewater include the so-called activated sludge process which is continuous and the sequencing batch reaction (SBR) activated sludge process. The first process requires the use of dedicated, relatively expe... | 10/11/1994 |
| 5320747 | Apparatus for removing solid matter from fluid systems A method and apparatus for removing solid matter from fluid systems which does not require system shutdown and minimizes the loss of system fluids. The invention first isolates the solid matter collection reservoir from the fluid system and then purges th... | 06/14/1994 |
| 5300230 | Comprehensive water treatment system A method is disclosed for the cyclic regeneration of a water softening system having a plurality of parallel water treatment units, N, each containing a water softening treatment bed which requires periodic regeneration. The method entails first calculati... | 04/05/1994 |
| 5288412 | Gray water processing system A modular gray water processing system is provided comprising a filter, an ultraviolet radiation chamber coupled to the filter and a storage tank for receiving and storing irradiated gray water from the ultraviolet radiation chamber. The filter filters gr... | 02/22/1994 |
| 5282978 | Specimen processor method and apparatus A specimen processor, for operation with holder apparatus carrying a viewing screen and a filter device and a container of a biological sample, has a frame with reference structure for aligningly engaging the holder apparatus, and has a transport that car... | 02/01/1994 |
| 5268094 | Wastewater processing apparatus A method is provided in accordance with this invention for treating wastewater in a tank having comminute, mix and settle sections. The method comprises receiving wastewater in the comminute section, comminuting solids in the wastewater, mixing the wastew... | 12/07/1993 |
| 5232584 | Method and apparatus for purifying and compacting solid wastes The present invention relates to a multi-stage, single reactor, purification system for disinfecting, washing, and concentrating solid wastes, which include contaminated soil, highly concentrated biosolids, spent animal bedding, and spent diapers, etc. A ... | 08/03/1993 |
