Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7521030 | Materials treatment A material contaminated with a solvent is treated with a hydrofluorocarbon to remove the contaminant. A preferred hydrofluorocarbon is tetrafluoroethane. Apparatus for carrying out the process is also described. ... | 04/21/2009 |
| 7439347 | Hepatitis C virus non-structural NS3/4A fusion gene Disclosed herein is the discovery of a novel hepatitis C virus (HCV) isolated from a human patient. Embodiments of the invention include HCV peptides, nucleic acids encoding said HCV peptides, antibodies directed to said peptides, compositions containing said nuclei... | 10/21/2008 |
| 7435378 | Method and apparatus for treating goods The present invention is directed to a method and apparatus for treating goods, such as, for example, fumigating and re-cooling perishable goods, such as fruit, using a tarp and floor seal. The apparatus encloses goods on a surface and includes a canopy that is subs... | 10/14/2008 |
| 7402291 | Dispensing apparatus and method suitable for heterogeneous composition The present invention relates to an apparatus and method suitable for dispensing heterogeneous compositions. ... | 07/22/2008 |
| 7399389 | Corrosion inhibitor dispensing apparatus and methods A corrosion inhibitor dispensing apparatus has a housing with a fluid inlet and a fluid outlet. A first body within the housing comprises a cathodic corrosion inhibitor. A second body within the housing comprises an anodic corrosion inhibitor. ... | 07/15/2008 |
| 7390420 | Method and equipment for compressing a dispersion in liquid-liquid extraction The invention relates to a method for controlling and compressing a dispersion formed in the mixing stage of liquid-liquid extraction. The compression of the dispersion is achieved by reducing the cross-section of the separation section in the direction of flow and ... | 06/24/2008 |
| 7390467 | Dispensing apparatus and method suitable for heterogeneous composition The present invention relates to an apparatus and method suitable for dispensing heterogeneous compositions. ... | 06/24/2008 |
| 7328809 | Solvent extraction method and apparatus A weir assembly for use with a mixer-settler for liquid-liquid extraction includes in one embodiment an organic weir having an inlet opening below the free surface of the organic phase liquid and a vertically-adjustable front wall allowing adjustments in the positio... | 02/12/2008 |
| 7326333 | Apparatus and process for extracting sulfur compounds from a hydrocarbon stream Described is an apparatus and process for extracting sulfur compounds from a hydrocarbon stream. A prewash section for converting hydrogen sulfide to sodium sulfide by reaction with an alkali such as caustic communicates with an extractor section disposed directly a... | 02/05/2008 |
| 7297256 | Pressure gradient dosing system for fluid supply A pressure gradient dosing system is provided for a fluid supply system. A flow passage has first and second pressure zones having a pressure gradient therebetween. An additive reservoir in an additive delivery system responds to the pressure gradient to release add... | 11/20/2007 |
| 7273585 | Biological fluid disposal system A biological fluid disposal system having a water flow line, a biological fluid line in fluid communication with the water flow line, a disinfectant line in fluid communication with the water flow line and the biological fluid line, and a venturi connected to one of... | 09/25/2007 |
| 7270792 | Process for producing para-xylene A process and a system for increasing para-xylene production from a C8 aromatic feedstream by coupling at least one xylene isomerization reactor with at least one pressure swing adsorption unit or temperature swing absorption unit to produce a product hav... | 09/18/2007 |
| 7244354 | Ozone irrigator This portable appliance can be used to clean teeth by liquid (water or solution) containing dissolved ozone, which is a potent oxidizer and germ killer. Preferably, its cleaning action is enhanced by pulsations of the liquid stream. The dissolved ozone can reduce or... | 07/17/2007 |
| 7234692 | Column tray A column tray assembly includes a tray having passages formed therein. The tray is a multifunction tray and is configured to receiving appropriate superstructures which can be selected according to the respective use of the assembly. Superstructures which communicat... | 06/26/2007 |
| 7223332 | Reactor and process for mercaptan oxidation and separation in the same vessel The present invention is an apparatus and process for oxidizing mercaptans in a preferably kerosene stream. By using a catalyst promoter, sufficient separation of hydrocarbon and aqueous alkali occurs in the reactor vessel to obviate the need for a settling tank. He... | 05/29/2007 |
| 7207445 | Device and method for non-dispersive contacting of liquid—liquid reactive system An apparatus for separating impurities from a liquid by a non-dispersive contacting of a liquid—liquid reactive systems, the liquids being immiscible with each other, having a cylindrical column separated into a first stage and a second stage, a plurality of modul... | 04/24/2007 |
| 7175054 | Method and apparatus for disinfecting a refrigerated water cooler reservoir A method and apparatus for providing sanitized water in a cabinet and spigot type bottled water dispenser features an ozone generating system to generate ozone for sanitizing the water. Ozone is generated and collected within an ozone generator housing. A blower tra... | 02/13/2007 |
| 7166223 | Hollow fiber contactor systems for removal of lipids from fluids This invention is directed to systems and methods for removing lipids from a fluid, such as plasma, or from lipid-containing organisms. These systems contact a fluid with an extraction solvent, which causes the lipids in the fluid to separate from the fluid or cause... | 01/23/2007 |
| 7163617 | Chemical proportioning and dispensing systems Chemical proportioning and dispensing systems discussed herein include systems for producing a desired admixture ratio of a first fluid and one or more other fluids. The systems may include one, two, or three eductors with each eductor including one or two suction i... | 01/16/2007 |
| 7160516 | High volume ultrasonic flow cell A flow cell for the ultrasonic treatment of a liquid includes a housing with a wall at least partially defining a flow chamber therein. The housing includes a first liquid passage and a second liquid passage for flowing the liquid into and out of the flow chamber. A... | 01/09/2007 |
| 7156991 | Liquid additive slow-release apparatus driven by a filter pressure gradient The present invention provides a filter assembly containing a filter element and a container as a depot for a liquid additive. The container can include an inlet and an outlet, which are configured to allow a liquid to flow into the container mix with the contained ... | 01/02/2007 |
| 7153422 | Liquid additive slow-release apparatus driven by a filter pressure gradient The present invention provides a filter assembly containing a filter element and a container as a depot for a liquid additive. The container can include an inlet and an outlet, which are configured to allow a liquid to flow into the container mix with the contained ... | 12/26/2006 |
| 7141224 | Vessels and covers Vessels, or housings, and covers therefor are detailed herein. Loads and load-bearing surfaces exist principally at the periphery of the covers, by contrast with centralized loading utilized in other designs. In some versions of the vessels, a cover is sandwiched, a... | 11/28/2006 |
| 7138095 | Liquid—liquid battery mounted extractors This liquid—liquid extractor essentially comprises: individual extractors (1), battery mounted, sliding or set along rails (2) and able to consist of separators of two liquid phases by centrifuging; intermediate parts (3) connecting the indivi... | 11/21/2006 |
| 7132051 | Liquid-liquid extraction of polar organic substances from their aqueous solutions with fluorinated extracting liquids A liquid-liquid extraction process of ketones, alcohols, aldehydes, alkyl esters of carboxylic acids, carboxylic acids, ethers, amines and heterocyclic compounds, from their aqueous solutions, comprising the addition under stirring to said aqueous solutions of a flu... | 11/07/2006 |
| 7112276 | Controlled dosing of chlorine dioxide of other sanitizing agents into pressurized water systems A medium having a support structure configured for circulation of a fluid therein, such as a replaceable filter cartridge, including a sanitizing agent which contains one or more reactants that are chemically configured for delivering chlorine dioxide or other sanit... | 09/26/2006 |
| 6991727 | Hollow fiber contactor systems for removal of lipids from fluids This invention is directed to systems and methods for removing lipids from a fluid, such as plasma, or from lipid-containing organisms. These systems contact a fluid with an extraction solvent, which causes the lipids in the fluid to separate from the fluid or cause... | 01/31/2006 |
| 6967010 | Chlorine dioxide generator A chlorine dioxide generator comprises a water eductor surrounded by a variable volume plenum. The plenum casing is threaded onto the venturi body, permitting the plenum volume and area to be modified depending on the capacity required. Chlorine and sodium chlorite ... | 11/22/2005 |
| 6962661 | Liquid—liquid extraction apparatus and method Method and apparatus for contacting two liquid phases for liquid-liquid extraction in a vertical extraction vessel. A relatively heavier liquid phase, descending the extraction vessel at a relatively low volumetric flow rate, is dispersed into a continuous phase com... | 11/08/2005 |
| 6953523 | Portable, refillable water dispenser serving batches of water purified of organic and inorganic pollutants A portable, refillable water dispenser serving batches of water purified of organic and inorganic pollutants includes a portable, refillable and hand-holdable vessel for holding and pouring water having a spout and, inside the portable, refillable and hand-holdable ... | 10/11/2005 |
| 6913691 | Controlled dosing of chlorine dioxide or other sanitizing agents into pressurized water systems A medium having a support structure configured for circulation of a fluid therein, such as a replaceable filter cartridge, including a sanitizing agent which contains one or more reactants that are chemically configured for delivering chlorine dioxide or other sanit... | 07/05/2005 |
| 6830737 | Apparatus for preparing microparticles using liquid-liquid extraction Method and apparatus for preparing microparticles using liquid-liquid extraction. A first phase and a second phase are combined to form an emulsion. A portion of the second phase is separated from the emulsion (solvent rich), and the solvent is extracted from the se... | 12/14/2004 |
| 6824750 | Vertical extending liquid/liquid contacting column A vertical extending liquid/liquid contacting column is disclosed, which column will, when in use, contain a dispersed and a continuous liquid phase, the column having a first liquid feed inlet in the top, a first liquid outlet in the top, a second liquid feed inlet... | 11/30/2004 |
| 6758964 | Device for separating phases of a diphasic mixture and its application to the determination of the physical and/or chemical parameters of this mixture A device for separating and renewing phases of a diphasic liquid—liquid mixture, in which a first liquid phase and a second liquid phase are circulated in counter current in a liquid—liquid extraction device. The device is in the form of a straight hollow cylind... | 07/06/2004 |
| 6749818 | Solution preparing apparatus A cost effective solution preparing apparatus includes a chamber which is divided into two compartments by a movable partition; a dissolving solution supply line for supplying a dissolving solution to the first compartment of the chamber; a solution tank connected w... | 06/15/2004 |
| 6709595 | Method and installation for setting in adsorbed state on a porous support active compounds contained in a product The invention concerns a method and an installation for setting in adsorbed state, on a porous support, compounds contained in a product comprising a first step which consists in extracting the compounds by contacting the product with at least a solvent at supercrit... | 03/23/2004 |
| 6706186 | Method for extracting copper from an aqueous solution The invention relates to a method for extracting copper in liquid-liquid solvent extraction from aqueous solutions with a high sulphate content, by raising the viscosity of the extraction solution and by dispersing the aqueous solution into drops, achieving a dense ... | 03/16/2004 |
| 6699445 | Integrated column for liquid-liquid contacting The present invention provides a system for, and method of, performing various liquid-liquid contacting operations such as solvent extraction, stripping, scrubbing, washing, re-extraction and reacting in a single, integrated column. The ability of the int... | 03/02/2004 |
| 6632397 | Multi-part anti-microbial concentrate system, activated solution, use-dilution solution, method of making same, and method of sterilizing with the use-dilution solution The present invention relates to a two-part or multi-part concentrate system for preparing an activated solution which can be diluted with water to a use-dilution solution having improved anti-corrosive properties at room temperature. The concentrate syst... | 10/14/2003 |
| 6572831 | Materials treatment A material contaminated with a solvent is treated with a hydrofluorocarbon to remove the contaminant. The hydrofluorocarbon can be tetrafluoroethane.... | 06/03/2003 |
