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 |
| 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 |
| 7427336 | Blade heat exchanger A blade heat exchanger includes blades that extend axially with respect to an axis of rotation and are elongated in the radial direction. The blades are arranged about the axis such that, when they are disposed in a housing, they form composite condensation and evap... | 09/23/2008 |
| 7422663 | Desalination machine A compact array of vertical rising film evaporators is disclosed in an evacuated multi-effect process, for desalination of seawater, using waste heat of thermal machines. Vapor produced in one stage is the heat source for the next. This invention is based on a conce... | 09/09/2008 |
| 7368039 | Distiller employing cyclical evaporation-surface wetting A distillation unit (10) employs a rotary heat exchanger (32) forming a multiplicity of evaporation chambers (56) into which a liquid to be purified is sprayed for evaporation. Spray arms (58) spray at a steady rate into all of the evapor... | 05/06/2008 |
| 7357849 | Method and system for separating solids from liquids A method and system for treating feedwater includes evaporating a portion of the feedwater in a first evaporation chamber so as to separate water vapor from the remaining feedwater. Droplets of the remaining feedwater are dispersed into a stream of hot air produced ... | 04/15/2008 |
| 7300538 | Spinning disk evaporator Liquid organic material is controllably delivered to a receptacle located in the center of a heated surface capable of horizontally rotating about its central axis. As the heated surface rotates, material deposited within the central receptacle is forced outwardly a... | 11/27/2007 |
| 7284599 | Heat exchanger Element for heat exchanging between fluids, where the flowing canals for the fluids are formed of slits on either side of a thin, folded sheet material (1), and that the ratio between the slit width (24) of the canals and depths (25) in the slit... | 10/23/2007 |
| 7267161 | Heat exchanger comprising a supercritical carbon-dioxide circuit The invention relates to a heat exchanger comprising a supercritical carbon-dioxide circuit comprising a plurality of tubes (1). The heat exchanger is original in that at least one section of the tubes (1) have surface irregularities (3) ... | 09/11/2007 |
| 7235183 | Glycerine foots salt separation system The present invention provides a method and apparatus for the recovery of salt from a glycerine process, allowing the salt to be used in a brine solution. A salt settling tank is positioned inline between the foots from a crude still bottom and a foot still. Salt se... | 06/26/2007 |
| 7225627 | Vapor compression system and method for controlling conditions in ambient surroundings A vapor compression system including an evaporator, a compressor, and a condenser interconnected in a closed-loop system and a method of operating such a system. The method includes the conversion of expanded liquid heat transfer fluid from a liquid form to a high q... | 06/05/2007 |
| 7153394 | System to isolate dianhydrides A process to isolate dianhydride from an exchange reaction comprises extracting a bisimide/anhydride exchange reaction aqueous phase with an organic solution comprising an exchange catalyst at a first temperature and pressure to form an extracted aqueous phase compr... | 12/26/2006 |
| 7112262 | Device for downward flow evaporation of a liquid substance and subsequent condensation of the vapour formed A device is disclosed for downward flow evaporation of a liquid substance and subsequent condensation of the vapor formed, which includes a plurality of vertical evaporator tubes housed in a common casing in side-by-side relationship, a distributor tank which is arr... | 09/26/2006 |
| 7008516 | Method and apparatus for desalinating and concentrating sea water, desalinated deep water and concentrated deep water According to a method of desalinating sea water, sea water sampled from deep sea is injected into a decompression chamber of a reduced pressure tank having a steam chamber, steam at an atmospheric pressure superheated to a boiling temperature or higher by high-frequ... | 03/07/2006 |
| 6998026 | Method for producing tertiary C-C-alkyl esters of (meth)acrylic acid A tert-C4–C8-alkyl (meth)acrylate is prepared by reacting (meth)acrylic acid with an olefin of the formula where R1 and R2, which may be i... | 02/14/2006 |
| 6911121 | Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas The present application is directed to a continuous contacting apparatus for separating a liquid component from a liquid mixture. The apparatus comprises: (i) an evaporation chamber (15) having first and second ends, an inlet (50) and an outlet (55 | 06/28/2005 |
| 6860966 | Method for isolating polyphenylene ether polymer resins from solution A method of removing substantially all solvent from a solution containing a polyphenylene ether polymer resin with little by-product formation (less than 250 ppm) is provided. The method employs a wiped thin film evaporator with a cylindrical heating chamber operati... | 03/01/2005 |
| 6802941 | Distiller employing cyclical evaporation-surface wetting A distillation unit (10) employs a rotary heat exchanger (32) forming a multiplicity of evaporation chambers (56) into which a liquid to be purified is sprayed for evaporation. Spray arms (58) spray at a steady rate into all of the evapor... | 10/12/2004 |
| 6695951 | Saline/sewage water reclamation system The present water reclamation system includes a series of concentric thin shells. The shells mount within a housing that can be maintained under vacuum or low pressure. The shells rotate at high velocity. Contaminated liquid from outside the housing is in... | 02/24/2004 |
| 6689251 | Cycled-concentration distiller A distiller (10) that employs a rotary heat exchanger (32) introduces water to be evaporated into evaporation chambers (56). During most of its operation, it collects the water that has passed through the evaporation chamber (56) without evaporating, and ... | 02/10/2004 |
| 6656327 | Method and device for the production of pure steam An evaporation product discharged from a lower end a falling-film evaporator enters a downpipe (7), makes a 180° turn at a bottom of the downpipe, and moves upward through an annular rising channel (9) defined between the downpipe and an intermediate hou... | 12/02/2003 |
| 6635150 | Method for distilling a fluid with horizontal vapor transfer into a condensation zone and modular device for implementing said method A method for distilling a fluid which is useful, for instance, in eliminating salt from brackish and/or sea water includes percolating films on plates with multiple effects having several evaporating zones and condensation zones. The evaporation zones (EV... | 10/21/2003 |
| 6423187 | Heat exchanger mechanism using capillary wipers for a thin film distiller A thin film distiller is provided which applies distilland to an evaporative side by the use of wicks which work by capillary action. The evaporated vapor is transferred to the condensate side after being compressed to a higher pressure where it is conden... | 07/23/2002 |
| 6338774 | Liquid distributor for non-vertical distillation columns, and distillation column including the same A liquid distributor includes a principal container with a perforated bottom, as well as transport members to transmit, by gravity, the liquid from at least one opening in the perforated bottom, to a supply point not in vertical alignment with this openin... | 01/15/2002 |
| 6309508 | Spinning disk evaporator Liquid organic material is controllably delivered to a receptacle located in the center of a heated surface capable of horizontally rotating about its central axis. As the heated surface rotates, material deposited within the central receptacle is forced ... | 10/30/2001 |
| 6294056 | Distillation method and distillation apparatus In a method for distilling (meth)acrylic acid and/or (meth)acrylic ester, the method has the step of uniformly distributing a supply liquid in a distillation tower over an entirety of a horizontal cross sectional area in the distillation tower. A distilla... | 09/25/2001 |
| 6200428 | Wastewater treatment apparatus and method Wastewater treatment apparatus having a fluid receiving vessel for collecting and heating wastewater to a temperature below boiling, a superheated vaporizing chamber and at least one spray head to spray wastewater into the vaporizing chamber for conversio... | 03/13/2001 |
| 6080273 | Method and device for treating liquids by partial evaporation A process and a device for treating a liquid by separating out constituents contained in the liquid. Pollutants are removed or the liquid is sterilized by partial evaporization. The liquid is introduced into a vacuum tank in which a portion thereof is eva... | 06/27/2000 |
| 6066232 | Method and vaporizer for vaporizing oxidation-sensitive compounds The invention relates to a process for evaporating a liquid containing vaporizable oxidation-sensitive compounds in an evaporator in which the liquid is brought into contact with a heated solid surface for evaporation, by a process in which direct contact... | 05/23/2000 |
| 5980694 | Apparatus for the purification of water contaminated with oil An installation for cleaning oil-polluted water, in particular at oil and gas production plants, is provided with a distillation column having a polluted water feed and at least one contact packing above which the outlet of the polluted water feed is loca... | 11/09/1999 |
| 5928469 | Process for storage of materials Materials which are not themselves storage-stable at room temperature are made suitable for storage by mixing them with a carrier substance and spray drying the resulting mixture so as to form particles containing both the material and the carrier substan... | 07/27/1999 |
| 5902457 | Spray generators An apparatus for generating a liquid spray from two jets of fluid which issue from a pair of opposing nozzles and interact, wherein the fluid is supplied to the nozzles under fully turbulent conditions such that random variations in the momentum of the fl... | 05/11/1999 |
| 5820748 | Safe removal of gasses, water and solvents from used lubricating oils with vacuum apparatus under mild temperature conditions Gasses, water and solvents, major contaminants in used lubricating oils, can be removed from used lubricating oils at mild temperature conditions under vacuum. Apparatus in which the removal can take place includes a hollow vacuum separator vessel with a ... | 10/13/1998 |
| 5770020 | Distillation apparatus The invention relates to a distillation apparatus (1) which is suitable in particular for the distillation of sea water into fresh water. The apparatus includes a plurality of flat, bag-like elements (3) formed from a thin film material such as plastic fi... | 06/23/1998 |
| 5755924 | Apparatus for treating liquid products An apparatus, e.g. centrifugal evaporator, has at least one rotary treatment surface, e.g. a heated evaporating surface, which rises outwards from the rotation axis, a liquid feed in the vicinity of the lowest point of the treatment surface close to the r... | 05/26/1998 |
| 5728273 | Method and installation for bringing a gas and a liquid into contact with one another Method for bringing a gas and a liquid into contact with one another, the liquid being passed in the form of a film over an evaporator surface (1) provided with small openings and the gas being fed through the openings in the evaporator surface, which gas... | 03/17/1998 |
| 5684125 | Method and device for purifying liquid polysiloxane material and its use The invention relates to a method for purifying liquid polysiloxane containing impurities as a low-molecular-weight fraction, by evaporating the low-molecular-weight fraction, in which method a liquid stream of impure liquid material in the form of a bund... | 11/04/1997 |
| 5676802 | Apparatus for treating waste water An improved apparatus for treating waste water containing volatile and corrosive substances by steam-stripping to remove the volatile and corrosive substances from the waste water. The apparatus has a liquid pooling zone installed at a part over the waste... | 10/14/1997 |
| 5658433 | System for the purification of vitamin E An integral system and method for the separation and purification in a single operation of a heat or oxygen-sensitive liquid feed, such as a plant derived liquid feed mixture of fatty acids, tocopherol compounds and sterols, into a low boiling point purif... | 08/19/1997 |
| 5653852 | Distilling device A distilling device has an undistilled water tank to contain undistilled water, a cover covering the tank, a water heating area communicating with the tank, a high-frequency oscillator disposed under the water heating area, a heater disposed above the wat... | 08/05/1997 |
| 5628901 | Vessel for treating liquids A single vessel with no moving parts is constructed to perform the functions of coalescing, vacuum dehydration, and thin film evaporation.... | 05/13/1997 |
