...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7416642 | System for cooling a heated juice by partial low-pressure evaporation A system for cooling a heated juice by partial low-pressure evaporation, the system includes a vat with at least two compartments that are connected to each other through a variably positioned shutter element, where the juice is subjected to decreasing pressure redu... | 08/26/2008 |
| 7413634 | Distillation system A multiple effect distillation chamber includes a plurality of separate distilling chambers and a drain chamber at a downstream end of the distilling chambers. The drain chamber functions to create a vacuum to draw volatile gases and impurities collected at the end ... | 08/19/2008 |
| 7381310 | Installation used to obtain salt-free sea water at a low temperature with continuous operation and enthalpy recovery A sea water desalination installation that employs an evaporation-condensation system which operates continuously at a low temperature and which enables the recovery of energy released. The installation includes a cylindrical evaporator having a large evaporation su... | 06/03/2008 |
| 7261765 | Electrostatic precipitator An electrostatic precipitator having a plurality of electrostatic precipitation units positioned within the electrostatic precipitator. Each of the electrostatic precipitation units includes a plurality of negative wire electrodes and a plurality of positive electro... | 08/28/2007 |
| 7258765 | Vaporization chamber, and distillation system comprising same, providing improved temperature sensing of liquid contained in the chamber Vaporization chambers (distillation “pots”) are disclosed in which the liquid contained in such a pot is heated and circulated to establish thermal uniformity of the liquid and to route the circulated liquid past a thermally conductive member that contacts the l... | 08/21/2007 |
| 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 |
| 7159957 | Actuator for a movable portion of an article of furniture A movable portion of an article of furniture, in particular a drawer, flap or door, includes at least one preferably electrical drive unit and a triggering device for actuation of the drive unit. The triggering device is at least partially arranged at the movable po... | 01/09/2007 |
| 7118654 | Riser base A chimney tray for a column for thermal treatment of a liquid. The chimney tray includes a total take-off of liquid by a drain connection arranged at an edge of the chimney tray, and having one or more drain channels having a gradient in a direction of the drain con... | 10/10/2006 |
| 7067044 | Multi-unit, distributive, regenerable, in situ desalination method Cultivated field water is desalinated by a series of independent units that float on the water surface, taking up the saline water with a wick, evaporating the water from the wick in desalinating relation by concentrating incident solar radiation with a combination ... | 06/27/2006 |
| 7018483 | Machine and method for thermal cleaning and separation of metal parts Thermal cleaning and separation of metal parts is performed by a stator from an electric motor. Windings embedded in an organic, insulating material are placed and heated to 250°–500° C. under controlled conditions in a heating chamber, evaporating organic mater... | 03/28/2006 |
| 7001490 | Purification of ammonia by distillation Crude ammonia is separated into a low boiler fraction, a high boiler fraction and an intermediate-boiling pure fraction by continuous fractional distillation in a distillation apparatus configured either as a dividing wall column or as a system of thermally coupled ... | 02/21/2006 |
| 6958111 | Dividing wall column In a dividing wall column comprising as segments a) an upper column region (6), b) an inflow section (7), c) an offtake section (8) and d) a lower column regio... | 10/25/2005 |
| 6951762 | Apparatus comprising a disposable device and reusable instrument for synthesizing chemical compounds, and for testing chemical compounds for solubility An apparatus and method for mixing a solvent with a solute to form a solution, and for separating said solution from excess solute so that a sample of solution less excess solute can be obtained, and for synthesizing drug compounds. ... | 10/04/2005 |
| 6932889 | Water treatment device and method A point of use water purification unit for continuously and completely purifying water at all point of use for removing all chemicals, killing all microorganisms; the device having a computer monitored and controlled system for degassing, super heating and exploding... | 08/23/2005 |
| 6926808 | Vacuum low-temperature distilled pure water dispenser A vacuum low-temperature distilled pure water dispenser includes a water-supply tank communicating with a reaction chamber via a water supply line, a pure water storage tank communicably located above the reaction chamber, an actuating pump communicably located belo... | 08/09/2005 |
| 6682633 | Apparatus for cocurrent fractional distillation A modular apparatus for fractional distillation and other forms of vapor-liquid contacting is presented. The apparatus performs cocurrent contacting of vapor and liquid in a number of identical structural units which are placed in horizontal layers in a c... | 01/27/2004 |
| 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 |
| 6623546 | Method and installation for chemical purification of vapor in a dehydrator with mechanical vapor compression According to the invention, the vapor is taken from the condensation chamber of the dehydrator and, prior to being compressed and at a temperature substantially equal to 100° C., it is caused to pass in succession through a series of purifiers, and in ea... | 09/23/2003 |
| 6454907 | Method and apparatus for concentrating slurried solids Method and apparatus for concentrating slurries by removing liquid in a single effect unit maintained under vacuum to effect low temperature flashing of the liquid. The single effect unit is a single flash column with separate recirculation loops, one to ... | 09/24/2002 |
| 6428656 | Water-cooled distilling apparatus A water-cooled distilling apparatus for purifying or distilling raw water. The apparatus includes a boiler, cooling tray assembly, and collection vessel. In use, raw water is initially poured into the boiler which has a self-regulating screen in it. As th... | 08/06/2002 |
| 6406597 | Water distilling device A distilling device for converting unprocessed water into pure water including a fill tank, a base having a removable water tray with a boiling chamber therein for holding the unprocessed water, a removable mist chamber disposed above the base and having ... | 06/18/2002 |
| 6365006 | Method for distilling a mixture of substances and device for realizing the same The present invention pertains to the alcohol processing industry and relates to a method that includes feeding a mixture into a distillation column which is fitted with contact devices for discharging the vapors through the top of said column. This metho... | 04/02/2002 |
| 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 |
| 6258215 | System and a rotary vacuum distiller for water recovery from aqueous solutions, preferably from urine aboard spacecraft The system for the recovery of water from urine aboard spacecraft includes a urine intake and pretreatment unit, a unit for water reclamation from urine and a condensate purification unit. The unit for water reclamation from urine is made on the basis of ... | 07/10/2001 |
| 6193849 | Fractionator with liquid-vapor separation means A fractionator has a fractionation vessel, a reactor effluent vapors inlet, a vapor feed contacting zone, a baffled contacting section above the vapor feed contacting zone, a tops section above the baffled contacting section, a heavy bottoms liquid hold-u... | 02/27/2001 |
| 6113744 | Water distillation apparatus A water distillation apparatus includes a degasification chamber having a top and a bottom. A liquid inlet is positioned adjacent to the bottom. A gas outlet is positioned adjacent to the top. A liquid outlet is positioned intermediate the top and the bot... | 09/05/2000 |
| 6086721 | Facility for distilling a liquid product A vacuum-creating apparatus of the unit is provided with a pump and a separator, wherein the pump is connected at its inlet to the separator, a jet device is made as a liquid-gas device and is connected at its outlet, by means of a pressure main, to the s... | 07/11/2000 |
| 6066239 | Water distiller with improved solids-removing baffle device A new baffle device for a distiller has a tubular body and a baffle member fixed with respect to such body. The baffle member has a plurality of apertures for stripping dissolved solids from steam passing through the member. The distiller raw water vessel... | 05/23/2000 |
| 5980698 | Method for vacuum distillation of a liquid product and an equipment for performing thereof A method for vacuum distillation includes separation of a liquid product delivered to a reservoir under vacuum into a vapour-gaseous phase and at least one liquid fraction, withdrawal of the vapour-gaseous phase from the reservoir using a vacuum-creating ... | 11/09/1999 |
| 5972171 | De-entrainment tray and method of operation De-entrainment devices are provided for separating an entrained liquid from a vapor stream exiting a flash zone in a separation column. Methods for utilizing the de-entrainment devices are also provided. In one embodiment, the de-entrainment device of the... | 10/26/1999 |
| 5837105 | Co-current contacting separation tray design and methods for using same A tray design for use in a separation column for distilling or fractionating a feed stream is provided that incorporates co-current contact of the liquid and vapor streams and their subsequent separation on each tray. Located on the trays are a plurality ... | 11/17/1998 |
| 5833812 | Low maintenance water distiller The water distiller 10 includes a plurality of housings 12, 14, 16 each mounted below a support plate 32. A voltage regulator 144 maintains a desired voltage potential between heating probes 34 and 36 within a heating bowl 46. An operator selector 142 aut... | 11/10/1998 |
| 5827404 | Method and apparatus for solvent recovery from waste wash liquid of printing machine A solvent recovery method and apparatus recover waste wash liquid generated in automatic washing of a printing machine so as to enable a printing machine washing of high productivity, excellent safety and health effect, and low cost. The solvent recovery ... | 10/27/1998 |
| 5810975 | Apparatus for extracting solid residue from a fluid by evaporation An apparatus for extracting solid residues from an aqueous slurry. The slurry is applied to the upper surfaces of disks that rotate in a hollow cylindrical vessel so that an evaporation enclosure is defined by the vessel and at least in part by the upper ... | 09/22/1998 |
| 5785819 | Distillation column for separating a liquid mixture into a plurality of pure fractions In a distillation column for separating a liquid mixture into a plurality of pure fractions, the distillation column being divided into 2 parts, a feed part and a take-off part, in its middle region by a separation effective in the longitudinal direction,... | 07/28/1998 |
| 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 |
| 5643418 | Method of and arrangement for separating fluid mixtures A device for intercepting liquid obtained from a stream of mixed fluids contains an enclosure having an upper opening and a lower opening. The upper opening is connectible to a source of suction while the lower opening is connectible to a source of the mi... | 07/01/1997 |
| 5632864 | Splash shield for distillation unit A splash shield for the boiler of a distillation type water purification apparatus includes at least two grades of porous media which cooperatively inhibit bubble formation and splashing, thereby preventing transfer of contaminants from the boiler water t... | 05/27/1997 |
| 5630913 | Water distillation system A water distillation system (10) includes a boiling chamber (11) and a condensation chamber (12). Water is fed via an inlet pipe (13) to a degassing chamber (15) where volatile gases are removed from the water. The water is evaporated in the boiling chamb... | 05/20/1997 |
| 5614066 | Water distillation apparatus An apparatus for converting seawater or other contaminated water into pure water for reuse including: a source of the contaminated water; a first horizontal housing connected to the source of contaminated water and having a heat exchanger therein for vapo... | 03/25/1997 |