Distilland-level Control Patents (Class 202/196)
  • Patent number: 10711076
    Abstract: A mobile vacuum distillation unit for extracting, condensing, and collecting volatile organic compound vapor emissions from one or more polymer-containing articles includes a shell that defines an enclosed interior space and is mounted to a transportable support platform, a vacuum distillation vessel, a condenser, a condensate storage tank, and a vacuum pump system in fluid communication with a vacuum distillation chamber of the vacuum distillation vessel. The vacuum distillation chamber that includes the one or more polymer-containing articles from which the VOC vapor emissions are extracted may be heated by an exhaust gas heat exchanger if the transportable support platform is connected to and hauled by a tractor unit powered by a diesel engine. A method of using the mobile vacuum distillation unit to extract VOC vapor emissions from one or more polymer-containing article during transportation of the one or more polymer-containing articles between geographically separate destinations is also disclosed.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 14, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Wayne E. Reeder, Thomas J. Chapaton
  • Patent number: 10052945
    Abstract: To provide a fuel supply system in which fuel stored in a fuel storage tank formed in a housing main body can be supplied by a high-pressure pump provided in the housing main body in spite of a rapid acceleration or a rapid deceleration of an engine, two types of connectors, which is a first connector having a low-pressure pump having a connection port for a fuel supply pipe from a fuel tank and a second connector having no pump, can be selectively attached via a common connector mounting part formed on a wall surface of a housing main body, and by using a housing having therein the commonly used high-pressure pump, a fuel supply system using an external pump and a fuel supply system using no external pump can be respectively manufactured in accordance with the purpose of use.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: August 21, 2018
    Assignee: Nikki Co., Ltd.
    Inventors: Kazuki Kimura, Teruyuki Wakabayashi, Yukinori Suematsu
  • Patent number: 8557087
    Abstract: The present invention relates to a process for the separation by distillation of a hydrocarbon-containing feed stream containing olefin monomer, co-monomer and hydrocarbon diluent. The present invention also relates to a distillation system including a distillation column for carrying out the process according to the invention.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: October 15, 2013
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Denis Mignon
  • Patent number: 7857945
    Abstract: A solar still includes a relatively shallow chamber with a pyramid shaped transparent cover and a transparent base. The still also includes a pair of rollers and an endless heat absorbing belt rotatable about the rollers. The still is positioned to receive solar energy passing through the transparent cover and impinging on an upper surface of the heat absorbing belt in order to vaporize seawater within the chamber. The efficiency of the still is increased by one or more mirrors disposed below the still for reflecting sun light up through the transparent base to impinge on a lower outer surface of the belt to enhance the vaporization of the seawater. One or more fans are also provided for cooling the cover to enhance the condensation of water that will then run down the cover and into a pure water receptacle.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: December 28, 2010
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Ahmed Al-Garni, Ayman Kassem, Farooq Saeed
  • Patent number: 7531065
    Abstract: A fluid distillation apparatus includes at least one each of a fluid inlet port Through which the fluid to be distilled is transferred from a container containing the fluid to be distilled to distillation chamber, a fluid outlet port through which the distilled fluid is transferred to a container to hold the distilled fluid, an air supply port to which compressed air supply is to be connected, a power cord through which the electric power is supplied, preferably an outlet through which air pressure for fluid agitation is supplied to said container containing the fluid to be distilled, and preferably art outlet through which air pressure is supplied to a pump means for transferring the distilled fluid from the receiving container to the duty fluid container. The apparatus includes a debris draining system for automatically draining debris from said distillation tank.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: May 12, 2009
    Assignee: Uni-Ram Corporation
    Inventor: Soichiro Yamamoto
  • Patent number: 7232504
    Abstract: 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 column, where it is heated. A condenser, which uses the waste liquid as a cooling medium, condenses the vapor generated by the heater. The condensed vapor is passed through a filter, which separates impurities out of the waste liquid, prior to feeding the waste liquid back into the concentrating column. Water is then removed from the waste liquid via a distilling process. The resulting concentrated liquid is then fed to a purifying column, where it is again heated, to remove residue, and condensed, resulting in a highly pure waste liquid.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: June 19, 2007
    Assignee: Fujitsu Limited
    Inventors: Hiroshi Osuda, Toru Matoba, Daisuke Adachi, Masataka Fukuizumi
  • Patent number: 6846388
    Abstract: A method and an apparatus for heating fluid with a gas heater and distilling fluid with the pilot light of the gas heater are disclosed. The apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a heater, adapted to have a pilot light, for heating the fluid in said main tank and an evaporator tank for vaporizing fluid received therein with heat from the pilot light. The method of heating fluid and distilling fluid includes heating a first volume of fluid with a heater having a pilot light and heating a second volume of fluid with the pilot light.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: January 25, 2005
    Inventor: Freeman Wilks
  • Publication number: 20040011637
    Abstract: 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 below the reaction chamber, and a refrigerating system having pipe lines extended between the reaction chamber and the pure water storage tank. When the actuating pump is actuated, a vacuum is produced in the reaction chamber to suck water in the water-supply tank into the reaction chamber, at where the sucked water is heated and vaporized by heat provided by a compressor of the refrigerating system, so that impurities, organic and inorganic matters, bacteria, and viruses in the water are separated therefrom through vacuum low-temperature distillation. When the actuating pump keeps pumping, the distilled water is sent from the reaction chamber into the pure water storage tank.
    Type: Application
    Filed: February 13, 2002
    Publication date: January 22, 2004
    Inventor: Wen Chao Shen
  • Publication number: 20030079981
    Abstract: 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 column, where it is heated. A condenser, which uses the waste liquid as a cooling medium, condenses the vapor generated by the heater. The condensed vapor is passed through a filter, which separates impurities out of the waste liquid, prior to feeding the waste liquid back into the concentrating column. Water is then removed from the waste liquid via a distilling process. The resulting concentrated liquid is then fed to a purifying column, where it is again heated, to remove residue, and condensed, resulting in a highly pure waste liquid.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 1, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi Osuda, Toru Matoba, Daisuke Adachi, Masataka Fukuizumi
  • Patent number: 5571385
    Abstract: A water purification method and apparatus is described which distills a contaminated water supply having contaminants dissolved therein with electrically powered spaced apart immersion electrodes. When connected to a source of alternating electrical current, the electrode members cooperate to distill water by heating while concurrently removing the contaminants as solid precipitates in the contaminated remaining water.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: November 5, 1996
    Assignee: Cleveland State University
    Inventors: Mircea Faur, Maria Faur, David W. Epperly
  • Patent number: 5565065
    Abstract: A distilled water supply device including a stand, a condensing unit mounted on the stand and separated by a partition wall into an upper chamber, which receives water from an external water source, and a bottom chamber, which condenses steam into distilled water, a heating unit detachably mounted inside the stand below the condensing unit and controlled to heat water from the upper chamber into steam, permitting steam to be guided into the bottom chamber for condensing, a vertical guide pipe for guiding water from the upper chamber to the heating unit, a vertical steam pipe for guiding steam from the heating unit to the bottom chamber for condensing.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: October 15, 1996
    Inventor: Chin-Tu Wang
  • Patent number: 5556539
    Abstract: An apparatus for separating a liquid by pervaporation, which comprises at least one pervaporation membrane module unit for purifying a liquid to be treated, a supply line connected to said pervaporation membrane module unit for supplying the liquid to be treated to the membrane module unit, a withdrawing line for withdrawing the permeated fluid from the membrane module unit and a withdrawing line for withdrawing the non-permeated liquid, wherein said supply line is provided with a pressure pump for transporting the liquid and a heater, and the final withdrawing line for the non-permeated liquid is provided with a pressure regulating valve.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: September 17, 1996
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Kasei Engineering Corporation
    Inventors: Masaaki Mita, Kenji Sugimoto, Seiji Sudoh, Katashi Shioda, Moriyoshi Kudoh
  • Patent number: 5496447
    Abstract: A distilling apparatus for distillation of water, including a condensing chamber divided into an upper holding space for receiving water from a water source and a lower holding chamber for condensing steam into water, a heating chamber controlled to heat water from the upper holding space into steam and having a steam outlet connected to the lower holding space for guiding steam into the lower holding space for condensing, a hot water chamber, which receives condensed water from the lower holding space of the condensing chamber, and a cold water chamber, which receives distilled water from the hot water chamber and cools it down by an electronic cooler.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 5, 1996
    Inventor: Chin-Tu Wang
  • Patent number: 5368698
    Abstract: A water distillation apparatus includes a cylindrical housing with a first cover thereon, a pair of spaced apart funnel-shaped partitions, a second cover on the uppermost partition and a skirt extending downwardly from the periphery of the cover and the uppermost partition to a location above the bottom of the housing, the partitions and skirt dividing the interior of the housing into an inlet reservoir chamber for cold water above the first partition, a lower boiling chamber beneath the second partition and an inclined condensation passage between the partitions. Cold water is introduced through a pipe and solenoid valve into the bottom of the reservoir chamber for overflow through an opening in the second cover into the boiling chamber. A heater in the boiling chamber heats the water to produce steam which rises, passing into the condensation passage and flowing downwardly to a central drain for discharge into a distilled water reservoir beneath the housing.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: November 29, 1994
    Assignee: Big Iron Drilling Ltd.
    Inventors: George R. Field, Wallace B. Bolte, Norman N. Pepin
  • Patent number: 5286351
    Abstract: A water distiller is provided which is used in conjunction with a hot water heater where normally wasted energy is used to preheat the hot water heater inlet. The distiller includes a heat storage tank, an evaporator tank having a water inlet, a heater and a steam outlet, and a first and second heat exchanger located within the heat storage tank. Steam generated in the evaporator tank passes through the first heat exchanger and condenses, forming distilled water. The heat rejected during condensation is absorbed within the heat storage tank. The second heat exchanger is used to preheat the water flowing to the hot water heater inlet by passing the water through the second heat exchanger on an as needed basis where it absorbs heat from the heat storage tank.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: February 15, 1994
    Assignee: Terrill Designs, Inc.
    Inventor: Michael E. Salmon
  • Patent number: 5271810
    Abstract: A distillation device for separating a liquid mixture from contaminants contained therein. The device partially cools, using an air radiator or equivalent passive heat-exchange device, a fluid of that contains at least one component of the mixture to be separated; the temperature of the fluid does not fall the ambient air temperature, thus preventing condensation on the heat exchanger. The partially cooled fluid is introduced into an aspirator and combined therein with a gaseous stream produced by heating the mixture to boiling in a separate chamber. Because of the high surface area of contact between vapor and aspirated liquid, the heat transfer is completely effective to condense the gaseous mixture, which settles into a pool. The components can then be separated mechanically or by gravity.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: December 21, 1993
    Assignee: Environmental Solvents Corporation
    Inventors: Gene E. Keyser, Robert L. Klopfenstein
  • Patent number: 4957200
    Abstract: A water distillation apparatus has an outer chamber and an inner chamber suspended within the outer chamber by support arms. The inner chamber suspends a heating element to create steam. Heat is transferred from the inner chamber to the outer chamber, wherein the heated water in the outer chamber is allowed to degassify. Degassification removes unpleasant tasting chemicals from the water before distillation. Openings are provided for air circulation to remove the gasses. A condenser is also suspended by the support arms. The stem exits the inner chamber and goes into the condenser. A fan provides air circulation through the condenser. The outer chamber is not penetrated by any openings, thereby precluding the possibility of any leaks. The support arms bear on the outer chamber walls; the inner chamber is removed from the outer chamber for cleaning simply by lifting up. In one embodiment the outer and inner chambers are made of a ceramic material to better regulate heat transfer.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: September 18, 1990
    Inventors: William F. Turner, James K. Dews
  • Patent number: 4946558
    Abstract: A water distiller is provided which is used in conjunction with a hot water heater where normally wasted energy is used to preheat the hot water heater inlet. The distiller includes a heat storage tank, an evaporator tank having a water inlet, a heater and a steam outlet, and a first and second heat exchanger located within the heat storage tank. Steam generated in the evaporator tank passes through the first heat exchanger and condenses, forming distilled water. The heat rejected during condensation is absorbed within the heat storage tank. The second heat exchanger is used to preheat the water flowing to the hot water heater inlet by passing the water through the second heat exchanger on an as needed basis where it absorbs heat from the heat storage tank.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: August 7, 1990
    Assignee: Terrill Designs, Inc.
    Inventor: Michael E. Salmon
  • Patent number: 4919257
    Abstract: In a gas dehydration system utilizing glycol a condensate skimming reflux column separates and skims natural gas condensate off glycol by a settling tank-type reservoir having a syphon-type glycol outlet to a reflux section spaced a predetermined distance below a condensate outlet pipe.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: April 24, 1990
    Inventors: Leslie E. Brigham, Sr., Leslie E. Brigham, Jr.
  • Patent number: 4917770
    Abstract: A vertically extending distillation cylinder has a closed top and an open bottom having an electric heating element disposed therein to form a closure. Adjacent to the top of the distillation cylinder is connected a condensing tube. The condensing tube extends down through a condenser having a cooling water inlet at the bottom and a water discharge at the top. A throttle valve regulates the flow of cooling water. From the water discharge, a trough carries the water to impinge on the distillation cylinder causing pollutants to vaporize. The water collects below in a basin surrounding the distillation cylinder. A feed tube carries water from the basin to the bottom of the distillation cylinder. A discharge tube also connected to the bottom of the distillation cylinder carries water up to where it makes a U-turn. This regulates water height in the distillation cylinder. The discharge tube and an over flow tube from the basin discharge into a funnel from which water is conveyed to a sewer.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: April 17, 1990
    Inventors: Charles T. Asbury, Genevieve J. Asbury
  • Patent number: 4861435
    Abstract: A water distillation apparatus having a distilled water storage tank and a water boiling tank. Components associated with the boiling tank control the level of water therein and production of steam from the water contained therein. A steam flow line permits steam flow from the boiling tank into the storage tank. A distilled water cooling coil disposed in the storage tank at a lower region below the distilled water level is connected with a cool water infeed flow line. A steam condensing coil disposed in the storage tank at an upper region thereof above the desired water level and the cooling coil is connected with the cooling coil. Steam which enters the storage tank can directly contact the condensing coil exterior surface for causing the steam to condense into distilled water in the storage tank.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: August 29, 1989
    Inventor: Herbert F. Sweet, Jr.
  • Patent number: 4687550
    Abstract: A water distiller assembly which provides for an efficient distillation process wherein steam generated in a boiling chamber is delivered to a steam condensing chamber where steam condensation is carried out by the combined effect of water cooling and air cooling. The resulting distilled water is stored in the steam condensing chamber where it is kept hot by the incoming steam for hot serving while at the same time helps in condensing the steam it comes into contact with. Water vapor emanating from the surface of the hot coolant water is also condensed and collected. Operating temperature of the coolant water may be adjusted to suit room temperature demands. The distillation process is made automatic, continuous and self-limiting by the use of two simple float controls and a thermostatic water outlet valve.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: August 18, 1987
    Inventor: Man J. Wong
  • Patent number: 4686009
    Abstract: A vacuum distillation system uses a tower having an open bottom submerged within a tank of solution exposed to atmospheric pressure. The solution within the tower is elevated to barometric level by a high vacuum or low absolute pressure on the tower top. As solution flows through the open bottom and upward, the solution is heated and then cooled to cause degasification and precipitation, and then withdrawn from the tower top. The treated solution is flowed to a vaporization chamber that is subjected to a low absolute pressure. A heater maintains the solution at a selected chamber temperature above the boiling point of water at the selected chamber pressure. The chamber pressure and temperature may be selected as desired to yield the purest water distillate for almost any solution of water and impurities. Water vapor is pumped from the vaporization chamber by a vapor pump to a condenser, where condensation results from increased pressure and decreased temperature.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: August 11, 1987
    Assignee: James W. Laney
    Inventor: Derald L. McCabe
  • Patent number: 4640743
    Abstract: A process for the multi-stage condensation of an overhead fraction is disclosed. The process facilitates optimal response to changes in distillation column controls wherein column top reflux condensation is preferentially returned to said distillation column, but auxiliary surge capacity is obtained by connection to a first accumulator section of an accumulating zone, which surge capacity is supplemented by one-way flow of liquid from a cooler, second section in said accumulation zone.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: February 3, 1987
    Assignee: Shell Oil Company
    Inventors: Robert P. Bannon, Stanley Marple
  • Patent number: 4612090
    Abstract: Water degasification and distillation apparatus having a container for water to be degasified and distilled, a relatively small boiler adjoining said container and having a first conduit extending into the container so that a selected water level in the container will fill said boiler to a selected height, a condenser within the container and immersed in the water contained therein, a second conduit extending from the space above the water in said boiler to the inlet of the condenser, an outlet on the condenser extending through a container wall for discharging degasified and distilled water and heating means in said boiler for heating the water therein.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: September 16, 1986
    Inventor: John C. Ellis, Jr.
  • Patent number: 4561940
    Abstract: The overcharge prevention device is installed in a solvent processing plant in a vacuum evaporator of a heat exchanger. It assures that the level of the cleaning solution in the vacuum evaporator cannot randomly rise when a feed valve malfunctions. A float body of an overcharge valve extending into the vacuum evaporator exerts a pressure through a double-arm lever and a valve plunger upon a ball valve and a valve seat in normal operation and holds the overcharge valve in a closed position. As the level of the cleaning solution undesirably rises, the buoyant action of the cleaning solution acts on the float body, causing the pressure on the valve seat to diminish, and the overcharge valve opens. This permits air to enter into the vacuum evaporator through the overcharge valve. The generated vacuum collapses and the suction force employed to ingest the cleaning solution disappears.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: December 31, 1985
    Assignee: Mentec Ag
    Inventor: Rene Meier
  • Patent number: 4415075
    Abstract: A compact, fully automatic water distilling unit is disclosed consisting of a tubular vaporizing tank with an attached condenser preheater disposed alongside which receives incoming feed water, prior to entry into the vaporizing tank via a rim trough extending about the tank. The assembly is adapted to be wall mounted and to discharge distilled water into a reservoir tank. The automatic controls include a float switch in the vaporizing tank controlling the inflow of fill water, a low level safety switch in the reservoir shutting off the heater upon the decline of water level below a minimum. A float switch arrangement is mounted in the reservoir to shut off the heater and water inflow upon filling of the reservoir. Also disclosed is an overflow passage, allowing overflow to be routed to a drain.
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: November 15, 1983
    Assignee: General Molding, Inc.
    Inventors: Guy P. McNesky, E. Dale Rice
  • Patent number: 4394216
    Abstract: An apparatus and method for recovering two immiscible fluids in a vapor generating and recovery apparatus wherein water, an immiscible cleaning solvent, and an emuslifying agent are subjected to sufficient heat in a first chamber to vaporize the water and the immiscible solvent and then condense in a second chamber the water and immiscible solvent, returning in separate streams the water and solvent to the first chamber.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: July 19, 1983
    Inventor: James W. McCord
  • Patent number: 4366030
    Abstract: Method and apparatus for distillation of liquids such as sea water, brackish water, waste water, or the like, which also may be used for cooling purposes, are disclosed. The apparatus includes a vacuum tank, or vessel, into which liquid to be distilled, such as saline water, is fed to partially fill the tank. If desired, heating means may be included for heating the liquid adjacent the surface thereof to promote evaporation thereof. Vapor from the region above the liquid surface is fed to vapor condensing means adjacent the bottom of the tank for condensing the same. A condensate discharge tube extends downwardly from the condensing means for discharge of condensate therefrom. Means including a pressure head of condensate within the condensate discharge tube maintains a subatmospheric pressure within the tank to promote evaporation of liquid contained therein.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: December 28, 1982
    Inventor: Max F. Anderson
  • Patent number: 4366031
    Abstract: Distillation method and apparatus for separation of alcohol from an alcohol-water mixture are disclosed which include use of a fluid-tight vacuum tank within which a surface condenser is located adjacent the tank bottom. The condenser has a vapor inlet above the condenser, and a condenser outlet which communicates with a first pump having a pump discharge outside the tank. A second pump is provided for removal of mixture from the bottom of the tank. In operation, an alcohol-water mixture is fed into the tank to completely fill the same while air is vented therefrom. The vent is closed, and mixture then is pumped from the tank and condenser to empty the condenser and to lower the level of mixture in the tank beneath the vapor inlet to the condenser. With the removal of mixture, a vacuum is created whereupon alcohol rapidly evaporates from the mixture surface to rapidly reduce the temperature of remaining mixture.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: December 28, 1982
    Inventor: Max F. Anderson
  • Patent number: 4364797
    Abstract: An electrically and/or solar heated distillation and fractionation system for separating ethanol-water mixtures comprised with an insulated inclined vaporization chamber divided into an upper solar absorbent vaporization section and a lower pre-heating section by a vaporization floor, float means to automatically control the ethanol-water feed to the lower portion of the preheating section when distillation is taking place, means to evenly distribute the ethanol-water mixture on the vaporization floor, means to heat the ethanol-water mixture in the distillation chamber, a packed fractionation column through which the vapors from the distillation chamber must pass, means to control the temperature at the top of the fractionation column-condensing means to recover and/or recycle distillate exiting to the upper portion of the distillation column and means to remove or recycle residual aqueous liquid from the lower end of the vaporization section.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: December 21, 1982
    Assignee: Stil Sun Oil, Inc.
    Inventors: Boyd R. Beck, Lamar H. Stewart, Steven Tapp, Don L. Anderson, Jr., Daniel E. Nuffer
  • Patent number: 4342625
    Abstract: Water distillation apparatus including separable evaporator storage reservoir and condensing modules coupled to each other in vertical succession. A fluid coil is suspended within the condensing module and is coupled to feed water from a source such as a domestic tap to the evaporator module. A vapor column including a spiral baffle extends through the storage reservoir module to direct steam generated in the evaporator module to the vicinity of the fluid coil, such that the coil affects heat exchange between inlet water and the surrounding steam to preheat the water prior to entry into the evaporator module and to condense the steam for flow by gravity into the storage reservoir module.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: August 3, 1982
    Inventor: Clifford C. Dennison
  • Patent number: 4339307
    Abstract: The apparatus includes a housing enclosing a boiler in the lower portion and a water-filled condenser in the upper portion with an insulated partition between them. The entry of boiler feed water is controlled by a float valve in the boiler, and steam from the boiler is conveyed through the partition and thus through a condenser coil substantially immersed in the water in the condenser.
    Type: Grant
    Filed: March 20, 1979
    Date of Patent: July 13, 1982
    Inventor: John C. Ellis, Jr.
  • Patent number: 4331514
    Abstract: A still for the distillation of water or other liquids, the still having a boiling chamber with a heater, a vapor condenser chamber, and a vapor separator chamber all supported by a frame having a catch basin below the chambers and a distilled liquid sump below the catch basin into which the condenser discharges. The chambers telescopically plug together in position on the frame and are easily separated and knocked-down for cleaning without requiring tools. The chambers are tubes having their ends removably plugged, and one of the plugs in the boiling chamber carries the heater with it, the heater coils supporting a convection sleeve which is easily separated therefrom for cleaning. The water level in the boiling chamber is controlled by connection with a separate tank having a float valve setting its own level, and the unit has automatic electrical shut-off switches operative when the sump is full or in case of overheating.
    Type: Grant
    Filed: August 12, 1980
    Date of Patent: May 25, 1982
    Inventor: Martin G. Bauer
  • Patent number: 4261796
    Abstract: There is disclosed a water distiller, primarily for producing water for human consumption which includes a boiler with an electric heater, a fractional distillation tower extending about two or more feet above the boiler, a gas trap at the top of the tower, and a steam conduit exiting from the tower below the gas trap and leading into a condensation tube with a water-cooled jacket. The boiler and tower are of uniform cross-section to facilitate cleaning by running a swab through this tube. An unprocessed water inlet is located in the bottom of the water jacket, and at the top of the water jacket is an exit orifice for preheated input water. A conduit for preheated input water leads to the bottom-most part of the boiler of the distiller. An overflow conduit is provided which is directly opposite the preheated water inlet; the highest point of the overflow conduit serves to automatically regulate the depth and volume of water in the boiler.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: April 14, 1981
    Inventor: Kenneth D. Lemoine
  • Patent number: 4239601
    Abstract: There is disclosed a water distiller, primarily for producing water for human consumption which includes a boiler, a distillation tower extending about two or more feet above the boiler, and a steam conduit exiting from near the top of the tower leading into a helically grooved condensation tube with a water-cooled jacket. The boiler and tower are of uniform cross-section to facilitate cleaning. The water jacket has a water inlet located in the bottom and an exit orifice for preheated input water at the top. A conduit from the orifice leads to an evaporator for volatile impurities on top of the tower, and a conduit for preheated input water leads to the bottommost part of the boiler from the evaporator. An overflow conduit with an intermittent siphon is provided connected to the bottom of the boiler; the highest and lowest points of the siphon serve to automatically regulate the maximum and minimum depths of water in the boiler.
    Type: Grant
    Filed: November 27, 1979
    Date of Patent: December 16, 1980
    Inventor: Kenneth D. Lemoine
  • Patent number: 4135984
    Abstract: A water distiller assembly comprising a bottom boiler unit and a top condensing unit incorporates heat exchange passage means for supply water and steam arranged in the condensing unit in such a way in combination with tubular flow connections between the condensing unit and boiler unit that cool, incoming supply water is preheated by steam rising from the boiler unit and flows by gravity down into the boiler unit, with the steam thereby being cooled and condensed to distilled water. Mineral laden residue water in the boiler unit is discharged therefrom continuously by means of a discharge passage providing a predetermined flow restriction against the flow pressure generated by the vapor pressure in the boiler unit. A supply water vessel forming a portion of the condensing unit is removably secured to the top of a boiler vessel by spring clips, which also serve to tightly seat lids covering the supply water vessel and the boiler vessel.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: January 23, 1979
    Inventor: John D. Kirschmann
  • Patent number: 4081331
    Abstract: A distillation apparatus having an evaporator for vaporizing liquid to be distilled, a substantially vertically disposed up-and-down flowing condenser in communication with the evaporator for condensing vaporized liquid received from the evaporator, and a heater associated with the evaporator for applying heat to and vaporizing fluid in the evaporator. The condenser feeds liquid into the evaporator so as to maintain a constant level of liquid in the evaporator at the highest normal point of flow of liquid in the condenser. The vapor travels downwardly through the condenser so as to become condensed at the bottom of the condenser where a distilled water output is provided for discharge of the distillate.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: March 28, 1978
    Inventor: Gunther Weiss