Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7976713 | Secondary filtering and discharging of wastewater Treating wastewater by receiving wastewater having a reduced concentration of waste solids into a secondary containment space and allowing the waste solids to distribute into a lower horizontal sludge layer, an upper horizontal scum layer, and a relatively clear hor... | 07/12/2011 |
| 7799236 | Gathering method and apparatus of powder separated soluble component An apparatus for collecting soluble component-removed powder that collects soluble component-removed and poorly soluble component-containing powder to recycle by removing the soluble component from the powder through filtering using a vacuum pump after mixing solubl... | 09/21/2010 |
| 7438821 | Liquid filtering method and filtering system A filtering method which prevents adhesion between an outlet vessel and a filter element and which uses a flexible filter which allows smooth flow of liquid and is superior in filtering performance; and a filtering system. A filtering method which uses a flexible ve... | 10/21/2008 |
| 7431846 | Method for concentrating solids from drilling slurry An apparatus to separate solids from drilling slurry, having an inlet positioned over an outlet of a concentration tank to displace water that would otherwise enter the down-stream centrifuges. Baffles are provided to direct solids to the outlet and minimize the tim... | 10/07/2008 |
| 7431851 | Fat separator The present invention provides a fat separator device having a container with a spout portion and a cover portion releasably attached to the container. The cover portion including a surface having at least one aperture to allow for passage of a liquid through the co... | 10/07/2008 |
| 7429332 | Separating constituents of a fluid mixture A device for separating constituents of a fluid mixture includes an elongate vessel oriented at an acute angle to horizontal. The vessel is operable to receive the fluid mixture and direct the fluid mixture to flow in a convection cell spanning substantially a lengt... | 09/30/2008 |
| 7402246 | Systems and methods using multiple solvents for the removal of lipids from fluids This invention is directed to systems and methods for removing lipids from a fluid or from lipid-containing organisms from a fluid, such as plasma. These systems combine a fluid with at least one extraction solvent, which causes the lipids to separate from the fluid... | 07/22/2008 |
| 7364663 | Filter system A filter system for receiving an oil-in-water emulsion contaminated with an emulsified contaminant oil, and separating the emulsified contaminant oil from the oil-in-water emulsion includes a filter media for receiving the oil-in-water emulsion and emulsified contam... | 04/29/2008 |
| 7354511 | Hydraulic unit for industrial trucks A hydraulic unit for industrial trucks, comprising a motor pump unit which is directly attached to a tank, a reflux filter which has an elongate filter casing for a filtering element adapted to be introduced into the tank through an opening, a hose coupling, and an ... | 04/08/2008 |
| 7338602 | Grease trap waste treatment and fat, oil, and grease (FOG) recovery system A method to process grease trap waste or refuse and remove organic matter, and reclaim fats, oils, and grease (FOG) found in it. The process is initiated after dewatering the grease trap material to increase its concentration; the resulting sludge is then mixed with... | 03/04/2008 |
| 7311837 | Process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate In a process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate, the same are mixed with water and the potassium hydrogentartrate is dissolved. The process is improved in that the suspension is decanted, the cl... | 12/25/2007 |
| 7309445 | Transferring slurry from a vessel Apparatus for transferring slurry from a vessel having a plurality of slurry collection points. The apparatus includes a manifold having a plurality of inlets in flow communication with one or more outlets and a plurality of pressure-reducing cyclones. Each cyclone ... | 12/18/2007 |
| 7300575 | Portable filter system A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-base... | 11/27/2007 |
| 7297279 | Method for removing oil from water coalescing in a polymer particle/fiber media Apparatus in fluid communication with a water leg portion of a hydrocarbon-contaminated water, e.g., a water leg portion of a produced water stream or an offshore drilling or production platform sump tank for conveying water, separated from oil, into contact with no... | 11/20/2007 |
| 7291277 | Method and device for cleaning the fountain solution of a printing press A method for cleaning the fountain solution of a printing press with an automatically emptying separator (16), separates the dirt particles and oil residues from fountain solution and supplies them, as a mixture of dirt and fountain solution, to a dirt and fo... | 11/06/2007 |
| 7258800 | Electrocoagulation waste water batch tank treatment system A waste water treatment system and process for treating waste water received in a batch tank. The waste water is discharged in a headwork screen for removing large solids in the water. The solids are into a sludge drying bin. The screened water is transferred into a... | 08/21/2007 |
| 7232525 | Automatic tank cleaning system An automatic tank cleaning system includes a water recycling unit having a weir therein and a conically-shaped bottom, a cutting box having a portable weir therein, a hydrocyclonic separator, and a mud tank. Tank slop is pumped from the mud tank to the water recycli... | 06/19/2007 |
| 7195710 | Systems and methods using multiple solvents for the removal of lipids from fluids This invention is directed to systems and methods for removing lipids from a fluid or from lipid-containing organisms from a fluid, such as plasma. These systems combine a fluid with at least one extraction solvent, which causes the lipids to separate from the fluid... | 03/27/2007 |
| 7192524 | Method for processing sugar cane filter cake mud and extracting component products A process for the continuous treatment of sugar cane filter cane mud separates and extracts components including fiber which can be used as an animal feed or a source of energy generation, lignin, beta-carotene, oil containing a high content of phytosterol, refined ... | 03/20/2007 |
| 7175768 | Method and device for clarification of liquids, particularly water, loaded with material in suspension A method is disclosed for clarifying, by flotation, waters contaminated with suspended matter, wherein the clarification treatment takes place in two successive steps implemented in a single installation. The method principally involves flowing contaminated water th... | 02/13/2007 |
| 7163636 | Multi-phase separation system A multi-phase separation system utilized to remove contaminants from fluids includes a pre-filtering module for filtering a contaminated fluid to provide a filtered contaminated fluid. A condenser module receives the filtered contaminated fluid and a contaminated ga... | 01/16/2007 |
| 7160474 | Method and apparatus for removing cuttings from drilling fluids The present invention is concerned with a method and apparatus for recycling drilling fluids used in the drilling of wells. The apparatus comprises a tank with a plurality of compartments. Used drilling fluid containing well cuttings or “solids” is pumped into a... | 01/09/2007 |
| 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 |
| 7156999 | Methods and apparatus for treating animal manure A method of treating animal manure yielding a final liquid fraction and solid fractions whereby the final liquid fraction has a suspended solids (SS) content of about 3 g/L or lower comprising subjecting at least a part of said manure to a first biological passive f... | 01/02/2007 |
| 7131370 | Centrifugal separating device and method of clarifying must during the production of wine The invention relates to a centrifugal separating device and method for clarifying must during wine production, especially with a separator (7). Gas and/or gelatine and/or other additives are added to the must that is clarified in the separating device after ... | 11/07/2006 |
| 7105094 | Method for the removal of heavy metals from acidic wastewater and chemical solutions A method which uses a process reactor having three separate reaction stages to remove high concentrations of heavy metals from acidic wastewater and chemical solutions. During each of three stages the pH level of the wastewater is increased and sludge and flocculate... | 09/12/2006 |
| 7077968 | Method for continuously filtering raw brine for use in chlor-alkali electrolysis The method of continuously processing raw brine with a solids content to obtain substantially solids-free pure brine (E) for use in chlor-alkali electrolysis. In this method the raw brine (A) is separated, by means of a decanter (1), into a clear brine (B) wi... | 07/18/2006 |
| 7048854 | Apparatus for the removal of heavy metals from acidic wastewater and chemical solutions An apparatus which uses a process reactor having three separate reaction stages to remove high concentrations of 3000 mg/l heavy metals from acidic wastewater and chemical solutions. During each of three stages the pH level of the wastewater is increased and sludge ... | 05/23/2006 |
| 7037436 | Method of cleaning water pollution trap A chamber having an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber are a screen, one or more baffles, a collection reservoir, and a pivotal filter. The screen is elevated for separating and suspendin... | 05/02/2006 |
| 7037642 | Removing compounds from blood products with porous particles immobilized in a matrix Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition containing cells while substantially maintaining a desired biological activity of the biological composition. The device comprises highly po... | 05/02/2006 |
| 7033500 | Systems and methods using multiple solvents for the removal of lipids from fluids This invention is directed to systems and methods for removing lipids from a fluid or from lipid-containing organisms from a fluid, such as plasma. These systems combine a fluid with at least one extraction solvent, which causes the lipids to separate from the fluid... | 04/25/2006 |
| 7022240 | Method for on-site treatment of oil and gas well waste fluids An apparatus and method for on-site treatment and reclamation of oil and gas well waste water or fracturing fluids. The mobile treatment process and apparatus provide both chemical precipitation and filtration to treat the drilling fluid waste to a technically and e... | 04/04/2006 |
| 7022243 | Apparatus for treating storm water A separation tank having an inlet and an outlet and forming a low flow path and a high flow path, both conveying water from the inlet to the outlet. At normal, low flows, the water enters the inlet and passes through the low flow path having treatment chambers to re... | 04/04/2006 |
| 7014779 | Vacuum separation, transport and collection system for immiscible liquids A vacuum separation, transport and collection system for immiscible liquids includes a separator (12) for separating two immiscible liquids such as oil and a water-based coolant, and for directing the separated immiscible liquid into a holder (16). A c... | 03/21/2006 |
| 6989103 | Method for separating fluids Methods of treatment of fluids produced by an oil or gas well following a stimulation operation, allowing separation from the fluids and re-injection of oil and gas hydrocarbons in a production pipeline under pressure, and allowing achievement of suitable quality fo... | 01/24/2006 |
| 6951615 | Grease removal system A grease removal system includes a solid interceptor fluidly coupled to a grease trap tank, which is fluidly coupled to a secondary tank. The secondary tank contains an enzyme solution which biodegrades the grease. The grease removal system may also include a solid ... | 10/04/2005 |
| 6946069 | Apparatus for removing metallic particles from effluent liquid waste An apparatus for separating solid particles from the suction effluent of, for example, a dental office, preferably driven by a dental office vacuum pump, includes a surge tank for accommodating effluent overfill connected to a sedimentary deposit tank for sedimentat... | 09/20/2005 |
| 6852239 | Energy-efficient duct, head cell with duct and methods A duct for conveying influent to a head cell having multiple, vertically aligned trays has an inlet end and an outlet end. The inlet end can be connected to an influent channel positioned at a level above the head cell apparatus. The outlet end is positioned downstr... | 02/08/2005 |
| 6852229 | Method for preparing high-purity ionic liquids A method for preparing a high-purity ionic liquid having a pH value of 7 and an elemental analysis deviation of less than 0.5 wt % between a calculated elemental analysis and a found elemental analysis for each of carbon, hydrogen and nitrogen, wherein the method co... | 02/08/2005 |
| 6814878 | Process for carrying out a hydrogenation reaction and removing pyrophoric catalyst A batch process for carrying out a hydrogenation reaction comprises mixing a pyrophoric catalyst with reactants and solvents to form a reaction mixture in a reaction vessel. Hydrogen is added to the reaction vessel. After hydrogenation, the desired hydrogenation pro... | 11/09/2004 |
