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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8128787 | Membrane-augmented distillation with pressure change to separate solvents from water Processes for removing water from organic solvents, such as ethanol. The processes include distillation in two columns operated at sequentially higher pressure, followed by treatment of the overhead vapor by one or two membrane separation steps. ... | 03/06/2012 |
| 8114255 | Membrane-augmented distillation with compression to separate solvents from water Processes for removing water from organic solvents, such as ethanol. The processes include distillation in two columns operated at sequentially higher pressure, followed by treatment of the overhead vapor by one or two membrane separation steps. ... | 02/14/2012 |
| 7967955 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by de-oiling the produced water to provide a de-oiled evaporator feedwater that is fed to an evaporator. The pretreated produced water... | 06/28/2011 |
| 7462263 | Method for purifying hydrocyanic acid A process for dewatering hydrocyanic acid by distillation, which includes distilling crude hydrocyanic acid containing from 50 to 99.9% by weight of HCN, from 0.1 to 40% by weight of water, from 0 to 15% by weight of carbon oxides and optionally from 0.01 to 1% by w... | 12/09/2008 |
| 7435317 | Desalination of ocean water An improved distillation of water. involves distilling significant quantities of water at temperatures well below the boiling point. During distillation, a compound is taken from a liquid-phase to a gas-phase and then condensed to the liquid-phase again to get a pur... | 10/14/2008 |
| 7396519 | Preparation of a high purity and high concentration hydroxylamine free base A high purity aqueous solution of hydroxylamine product is prepared by treating an aqueous solution of hydroxylammonium salt with a base like ammonia at low temperatures. A novel process can be carried out by separating the ammonium salt side product from hydroxylam... | 07/08/2008 |
| 7371313 | On-site generation, purification, and distribution of ultra-pure anhydrous ammonia A system and method for generating, purifying, and using ultra-pure ammonia on-site, such as at a semiconductor manufacturing facility. The system includes an ammonia generation system configured to generate ammonia including carbon dioxide, water, and other impurit... | 05/13/2008 |
| 7306654 | Method and apparatus for recovering water from atmospheric air A method of separating water from air is provided comprising the steps of (a) contacting air having water vapor with an hygroscopic liquid mixture to produce a water rich hygroscopic liquid mixture, (b) heating at least a portion of the water rich hygroscopic liquid... | 12/11/2007 |
| 7273071 | Diverter valve for capacity control of a refrigerant absorption cycle driving heat source A control for controlling the amount of heated fluid entering the inlet of the driving heat source for a refrigerant absorption cycle is controlled to vary the relative amount of heated fluid entering the driving heat source inlet, and being dumped to atmosphere. Pr... | 09/25/2007 |
| 7267806 | Sterilization system and method with heat pump operated vaporizer/condenser A chemical vapor sterilization process is enhanced by concentrating a germicide via condensation and re-vaporization thereof, exploiting the difference between the vapor pressures of the germicide and its solvent to extract some of the solvent during the condensatio... | 09/11/2007 |
| 7232504 | Apparatus and method for distilling waste liquids A distilling apparatus and method use a two step distillation and purification process for processing a waste liquid, such as an impure sulfuric acid solution, to form a highly concentrated sulfuric acid solution. First, the waste liquid is stored in a concentrating... | 06/19/2007 |
| 7220502 | Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions The process and system of the invention converts carbonaceous feedstock such as coal, hydrocarbon oil, natural gas, petroleum coke, oil shale, carbonaceous-containing waste oil, carbonaceous-containing medical waste, carbonaceous-containing military waste, carbonace... | 05/22/2007 |
| 7090808 | Apparatus for testing sterilization methods and materials Apparatus and method for testing one or more sterilization indicators (e.g., biological indicators or chemical indicators) or other articles by contacting them under controlled sterilization conditions with a flowing antimicrobial gas containing hydrogen peroxide va... | 08/15/2006 |
| 7048905 | Process for the production of hydrogen peroxide Process for the production of concentrated aqueous solutions of hydrogen peroxide, comprising the following steps: (a) feeding to a reactor containing a catalyst based on palladium and platinum, heterogeneous and maintained in dispersion in a liquid reaction medium:... | 05/23/2006 |
| 7045343 | Sterilization indicator test packs Sterilization indicator test packs for testing the effectiveness of a sterilization procedure are provided. Both non-challenge and challenge-type test packs are disclosed. The non-challenge test packs include generally comprise a tray for holding a sterilization ind... | 05/16/2006 |
| 6998053 | Water desalination process using ion selective membranes The invention is directed to an improved desalination process to produce potable water. The process represents an improvement of hybrid of membrane and desalination technologies. The improvement of the invention comprises the operation of an ion selective membrane a... | 02/14/2006 |
| 6968779 | Apparatus and methods for wire-tying bundles of objects Systems and methods for threading and feeding a length of wire into a wire-tying track, for withdrawing at least some of the wire from the wire-tying track to tension the wire around one or more objects, and for extracting waste wire from the system. The object of t... | 11/29/2005 |
| 6969466 | Purification of ammonia Highly pure aqueous solution of ammonia, typically electronics grade for use in semiconductor manufacturing is prepared by passing a solution of ammonia through at least one cation exchange resin bed to remove substantially all of the cation contaminants; subsequent... | 11/29/2005 |
| 6953518 | Apparatus for concentrating a specific ingredient-dissolved liquid A specific ingredient-dissolved liquid condensing apparatus, comprising an upper tank, a lower tank provided under the upper tank, the upper tank being provided with a liquid-falling opening and a valve for falling a specific ingredient-dissolved liquid in the upper... | 10/11/2005 |
| 6913674 | Process for fractionating water-containing crude amine mixtures from amine synthesis A mixture containing one or more amines, water, low-boilers and high-boilers, is fractioned in a process wherein (i) low-boilers are separated from the mixture by distillation, (ii) high-boilers are separated from the mixture by distillatio... | 07/05/2005 |
| 6780288 | Process for the manufacture of concentrated solutions Process for the manufacture of a concentrated solution, like a concentrated aqueous hydrogen peroxide solution, by distillation and evaporation of a dilute solution, in which the distillation and the evaporation are carried out in two distinct pieces of equipment wh... | 08/24/2004 |
| 6755975 | Separation process using pervaporation and dephlegmation A process for treating liquids containing organic compounds and water. The process includes a pervaporation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporation step. The process yields a membrane res... | 06/29/2004 |
| 6649027 | Water reclamation system A water reclamation system for a closed environment includes a mixer that receives brine. A processor is downstream of the mixer, with the processor distilling substantially salt-free water from the brine in the substantial absence of salt crystallization... | 11/18/2003 |
| 6565753 | Method for purification of deicing fluid for recovery of glycol In the purification of deicing fluid for recovery of glycol, initially solid particles are separated, then dissolved organic compounds and positive and negative ions are separated by an ion exchange in an ion exchanger, and finally water is separated by d... | 05/20/2003 |
| 6508936 | Process for desalination of saline water, especially water, having increased product yield and quality A desalination process is disclosed which combining two or more substantially different water treatment processes in a unique manner to desalinate saline water, especially sea water, to produce a high yield of high quality fresh water, including potable w... | 01/21/2003 |
| 6500310 | Process for the treatment of waste water A process for treating waste water streams containing at least hydrocarbons and salts to yield a clean water product, a concentrated brine product and a hydrocarbon-rich product, which process includes the steps of: (a) feeding the waste water feed into a... | 12/31/2002 |
| 6332949 | Method for upgrading used sulfuric acids A process for concentrating spent sulphuric acids particularly sulphuric acids which arise during the nitration of hydrocarbons with nitric acid in the presence of sulphuric acid, wherein single- or multi-stage concentration is effected under vacuum.... | 12/25/2001 |
| 6086722 | Minimizing evaporator scaling and recovery of salts during gasification A process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged during a partial oxidation gasification, wherein the aqueous effluent contains ammonium chloride (NH4 Cl). The aqueous ef... | 07/11/2000 |
| 6001223 | On-site ammonia purification for semiconductor manufacture Highly purified ammonia for use in semiconductor manufacturing is prepared on-site by drawing ammonia vapor from a liquid ammonia reservoir, passing the vapor through a filter capable of filtering out particles of less than 0.005 micron in size, and scrub... | 12/14/1999 |
| 5904814 | Removal of water and ammonia from benzophenone imine reactor effluents A process for removing water and ammonia from benzophenone imine reactor effluents resulting from the catalytic reaction of benzophenones of the formula I ##STR1## where R1 and R2, have the meaning stated in the specification ... | 05/18/1999 |
| 5837107 | Process for production of aqueous solutions of free hydroxylamine An aqueous solution of free hydroxylamine is prepared by a process in which the solution obtained by treating a hydroxylammonium salt with a base is separated into an aqueous hydroxylamine solution and a salt fraction by treatment with water or steam at à... | 11/17/1998 |
| 5783084 | Process for the reclamation of process water from process wastewater generated in the battery manufacturing industry and other metals related industries A process wastewater treatment plant, and a process relating thereto, which converts process wastewater generated in battery manufacturing and the like into clean process water and sodium sulfate salt by treating the process wastewater to remove impuritie... | 07/21/1998 |
| 5766423 | Dehydration of gases with liquid desiccants A gas drying method is disclosed in which gas streams are dehydrated to low dew points by contacting the wet gas with a dry liquid desiccant, with the liquid desiccant regenerated by heating it in a reboiler containing an internal reboiler vapor condenser... | 06/16/1998 |
| 5762763 | Method and apparatus for separating water from compressed air system condensate A method and apparatus for separating water from a condensate mixture having two or more components drained from a compressed gas system is disclosed. The apparatus has a boiler with an inlet for receiving the condensate mixture and an outlet through whic... | 06/09/1998 |
| 5733417 | Water and organic constituent separator and stripper system and method A regenerating system, for the removal of water and potentially harmful organic constituents from a dehydration fluid used to dehydrate gas. The system includes apparatus for converting all the organic constituents to a gaseous phase; and utilizing the ga... | 03/31/1998 |
| 5714634 | Process for storage and transport of toluenediamine This invention relates to an improved process for storing and transporting toluenediamine, particularly for long term storage or storage in large containers, e.g., shipboard containers. The improvement in the process resides in substantially reducing the ... | 02/03/1998 |
| 5693191 | Process for recovery of anhydrous hydrogen chloride from mixtures with non-condensable gases A process is provided for the recovery of hydrogen chloride in anhydrous form from a dry (containing less than about 500 parts per million by weight of water) mixture of hydrogen chloride with one or more non-condensable gases and which may also contain c... | 12/02/1997 |
| 5676801 | Radial inflow compressor for large volumetric flows A radial-inflow large volume-rate low pressure-differential, single-stage compressor comprising 2 periphiral concentric sets of axial blades spaced circumferentially between two supporting rings and further strengthened against bending by intermediate rin... | 10/14/1997 |
| 5665208 | Method and apparatus for the quantitative enrichment of volatile compounds by capillary distillation A quantitative enrichment of volatile compounds from substances of the macro- to submicro field in a short time is realized by capillary distillation in a system which includes an evaporator vessel, on the bottom of which one or more filter plates are pro... | 09/09/1997 |
| 5643421 | Dehydration of gases with liquid desiccants A gas drying method is disclosed in which gas streams are dehydrated to low dew points by contacting the wet gas with a dry liquid desiccant, with the liquid desiccant regenerated by heating it and stripping it with a stripping agent that is dried with so... | 07/01/1997 |
