Rotary And/or Tiltable Patents (Class 202/238)
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Patent number: 9005403Abstract: A rotary evaporator comprising a motor, a rotary joint movably inserted to a motor rotor of the motor by a sleeve in an axial direction, a collection flask attached to the rotary joint at one end of the joint, with a condenser attached to the other end of the joint. The condenser is adapted to receive a cooling coil from an immersion cooler. The cooling coil is attached to the base unit of the immersion cooler via an insulated hose. The rotary evaporator is adapted to provide various ways to remove heat from the flask in the water bath, whether by mechanically lowering the water bath, dropping fluid from the bath into an underlying reservoir, or raising and lowering the rotary evaporator out of the bath. Where the rotary evaporator is raised and lowered, the immersion cooler can remain in place if the hose connecting the base unit to the cooling coil is sufficiently long, or the condenser includes a flexible portion that accommodates the upward and downward movement.Type: GrantFiled: September 22, 2010Date of Patent: April 14, 2015Assignee: Ecodyst, Inc.Inventor: George M. Adjabeng
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Patent number: 8956506Abstract: The invention relates to a rotary evaporator comprising a rotary drive having a hub and a clamping insert with a sleeve-like basic shape, in particular a clamping sleeve, for the clamping of a steam leadthrough formed as a hollow glass shaft in the hub of the rotary drive, wherein the clamping insert has a longitudinal axis and a first and a second axial end, wherein the clamping insert has two clamping sections which are arranged spaced apart from one another in the longitudinal direction and which each have an outer cross-section tapering toward the first end and of which the clamping arrangement arranged closer to the second end has a larger maximum outer cross-section.Type: GrantFiled: January 28, 2010Date of Patent: February 17, 2015Assignee: Hans Heidolph GmbH & Co. KGInventor: Joachim Carl
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Patent number: 8894822Abstract: A rotary evaporator (1) having a cooler (6), wherein temperature sensors (15, 17) are disposed in the inlet (14) and outlet (16) of the coolant into or out of the cooler (6), and a volume flow rate of the coolant through the cooler (6) is determined. The initiation or termination of condensation in the cooler (6) is derived from an increase or decrease in the difference of the temperatures (X) at the temperature sensors (15, 17). The volume of the condensed distillate (10) is determined from the difference in temperatures (X), and a distillation volume control is performed. By regulating the heating power of the heater (11) and/or the pressure in the system, the loading of the cooler (6) is controlled as a function of the difference in temperatures (X).Type: GrantFiled: August 29, 2009Date of Patent: November 25, 2014Assignee: Ika-Werke GmbH & Co. KGInventors: Hubert Pinhack, Martin Spath
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Patent number: 8864949Abstract: A system and method for decontaminating water and generating water vapor includes introducing contaminated water in to a vessel. The water is moved through a series of rotating trays alternately separated by stationary baffles so as to swirl and heat the water to effect the vaporization thereof to produce a vapor having at least some of the contaminants separated therefrom. The vapor is removed from the vessel for condensing apart from the separated contaminants and the remaining water. The vapor may be passed through a turbine connected to an electric generator. Sensors in a controller may be employed to adjust the speed of rotation of the trays or water input into the vessel in response to the sensed conditions. The treated water may be recirculated and reprocessed through the vessel to increase the purification thereof.Type: GrantFiled: January 18, 2013Date of Patent: October 21, 2014Assignee: Verno Holdings, LLCInventors: John D. Riley, Dana L. Johnson
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Patent number: 8608911Abstract: A device for desalination of water having an inlet for saltwater, a first inner container arranged rotatable around an axis, a second container having an evaporation surface, a heater for heating of the second container and thereby also the evaporation surface, and a motor arranged to rotate the containers around the axis of rotation. The second container encloses the first inner container and is connected fixed to the first inner container. A mechanism for distributing water on the evaporation surface is constituted by holes arranged in the container wall of the first inner container so that water may pass out to the second container. Holes are also arranged in the container wall of the second container so that steam may pass out from the second container. A condensation surface is arranged for condensation of steam which passes out through the holes in the container of the second container.Type: GrantFiled: April 6, 2011Date of Patent: December 17, 2013Inventor: Rolf Ingeson
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Publication number: 20130327631Abstract: A rotary evaporator (1), having an equipment stand (2) with a protruding guide tower (3), a glass structure (4) which has an evaporation tank (5) and can be displaced on the guide tower (3) for lifting and lowering the evaporation tank (5) thereof, and at least one fluid line that is connected to the glass structure (4). In one embodiment, the guide tower (3) has a channel (17) that is oriented in the longitudinal extension of the tower (3) and in which a line section is provided of at least one fluid line that is connected to the glass structure (4) and opens out into or ends in a flexible tube connection. This flexible tube connection is arranged on a bottom-side region of the rotary evaporator, which faces away from the free end of the guide tower (3), and the glass structure (4) is retained on a carriage (21) that can be displaced laterally on the guide tower (3).Type: ApplicationFiled: July 25, 2012Publication date: December 12, 2013Applicant: KNF Neuberger GmbHInventors: Erwin Hauser, Erich Becker
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Patent number: 8591705Abstract: A multi-effect evaporator, having an upstream and a downstream end, adapted for distillation of water. It includes a plurality of effects connected in a series manner and arranged into groups. Each group has a common parallel water feed inlet adapted to supply all effects in the group with feed water. The evaporator further includes a main feed water line in fluid communication with the most upstream group. An array of heaters is disposed along the line, adapted for heating the feed water before its entry into the effects of the latter group. Each effect includes means for forwarding the second outlet vapor into one of the heaters for heating the feed water. Each group includes a pump adapted to extract the concentrate from the effects of the group and pump it into the common parallel water feed of an adjacent downstream group.Type: GrantFiled: March 3, 2011Date of Patent: November 26, 2013Assignee: I.D.E. Technologies Ltd.Inventors: Joseph Weinberg, Avraham Ophir
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Patent number: 8551295Abstract: A reactive distillation apparatus for multistage counter-current rotating bed includes a closed shell, in the center of which a revolving shaft linking each shell section is set, the shaft is provided with two or more rotors in series connection, a feeding inlet, a reflux inlet and an outlet of the gas phase are mounted on the top end face of the shell while a waste liquid outlet and an inlet of the gas phase are set on the bottom end face of the shell, a group of concentric dynamic filler rings with different diameters are installed at intervals along the radial direction, wherein the wall of the dynamic filler rings is holed, and the ring clearance between the dynamic filler rings is configured with static rings fastened on the static disc; a feeding inlet is arranged on the top cover of the shell corresponding to the spray nozzle of raw material liquid; a rotating liquid distributor is arranged on the inner side of the innermost dynamic filler ring of the said lower rotor.Type: GrantFiled: June 12, 2010Date of Patent: October 8, 2013Assignee: Beijing University of Chemical TechnologyInventors: Jian-Feng Chen, Peng-Yuan Zhang, Guang-Wen Chu, Hai-Kui Zou, Wei Wu, Qin Shi
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Patent number: 8524859Abstract: In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.Type: GrantFiled: March 23, 2011Date of Patent: September 3, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yu Feng Wang, Richard C-M Yeh
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Patent number: 8506762Abstract: Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, and a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product. Other embodiments of the invention are directed toward heat management, and other process enhancements for making the system especially efficient.Type: GrantFiled: October 30, 2007Date of Patent: August 13, 2013Assignee: DEKA Products Limited PartnershipInventors: David F. Bednarek, Jason A. Demers, Timothy P. Duggan, James L. Jackson, Scott A. Leonard, David W. McGill, Kingston Owens
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Publication number: 20130056345Abstract: A device for desalination of water having an inlet for saltwater, a first inner container arranged rotatable around an axis, a second container having an evaporation surface, a heater for heating of the second container and thereby also the evaporation surface, and a motor arranged to rotate the containers around the axis of rotation. The second container encloses the first inner container and is connected fixed to the first inner container. A mechanism for distributing water on the evaporation surface is constituted by holes arranged in the container wall of the first inner container so that water may pass out to the second container. Holes are also arranged in the container wall of the second container so that steam may pass out from the second container. A condensation surface is arranged for condensation of steam which passes out through the holes in the container of the second container.Type: ApplicationFiled: April 6, 2011Publication date: March 7, 2013Inventor: Rolf Ingeson
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Patent number: 8377257Abstract: A total evaporator for fluids, including a cold chamber to prevent pre-evaporation, an evaporation region connected thereto having narrow flow cross-section for fast evaporation of the fluid, and a subsequent vapor chamber for pulsation damping and the controlled superheating of the vapor, the evaporation region being formed by a gap between concentrically nested cylindrical and/or conical tube sections and heat required for the evaporation and superheating processes is supplied by electric heating and/or by hot fluid and/or by catalytic or homogeneous combustion via the wall of the concentric tubes.Type: GrantFiled: May 19, 2006Date of Patent: February 19, 2013Assignee: Universitat StuttgartInventors: Gerhart Eigenberger, Andreas Freund, Grigorios Kolios, Clemens Merten, Jens Bernnat, Gudrun Friedrich
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Patent number: 8361277Abstract: An evaporator is provided for evaporation of liquid from a solution or liquid mixtures, together with methods of operation of the evaporator. The evaporator comprises a chamber (1); a liquid reservoir (3) for holding a heat transfer liquid exposed to the interior of the chamber; a support (6) for supporting a container (8) in the chamber, such that the liquid sample in the container is exposed to a fluid path (15) for connection to a condenser (16), the fluid path being separated from the chamber interior, and at least a portion of the container is closely thermally coupled to the chamber interior; and means (4) for heating the heat transfer liquid in the reservoir to create heat transfer liquid vapor, which in use condenses and releases latent heat of vaporization to the liquid sample in the container. As the temperature of the sample is dependent on the saturated vapor temperature of the liquid in the reservoir, the temperature of the samples is reliably limited, thereby avoiding overheating.Type: GrantFiled: March 14, 2007Date of Patent: January 29, 2013Assignee: Genevac LimitedInventor: Donald Roger Lee-Smith
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Publication number: 20120228119Abstract: A distiller is provided. The distiller includes a liquid-tight enclosure and an input source connected thereto for inputting a quantity of water into the liquid-tight enclosure. A plurality of substantially vertical rotatable plates is aligned along a substantially horizontal axis within the liquid-tight enclosure. At least a portion of each of the substantially vertical rotatable plates is submerged within the quantity of water inside the liquid-tight enclosure, and each of the substantially vertical rotatable plates has an opening. At least one manifold, having one or more exit ports, extends through a plurality of the openings of the substantially vertical rotatable plates, wherein a portion of the quantity of water is transferred via the substantially vertical rotatable plates to the manifold during a rotation of the plurality of substantially vertical plates. An output opening is formed in the liquid-tight enclosure, the output opening arranged in fluid communication with the manifold.Type: ApplicationFiled: May 8, 2012Publication date: September 13, 2012Inventor: Samuel T. Kjellman
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Patent number: 8246788Abstract: A biomass torrefaction system is provided which enables a continuous torrefaction process that involves the introduction of biomass particles into a rotating reactor drum having a low oxygen environment. The particles are conveyed through the drum by a heated gas stream and simultaneously torrefied thereby. Gas exiting the drum is recirculated back to a heat source for reheating the gas prior to reentering the drum. A method of biomass torrefaction is also provided.Type: GrantFiled: August 25, 2011Date of Patent: August 21, 2012Assignee: Teal Sales IncorporatedInventors: William B. Teal, Richard J. Gobel, Andrew Johnson
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Patent number: 8034214Abstract: A reciprocating film type evaporator for solvents and other chemicals which eliminates the need for a large powerful motor, and other associated equipment such as rotary gaskets, by using reciprocation, versus 360 degree rotation.Type: GrantFiled: April 12, 2007Date of Patent: October 11, 2011Assignee: Tracera LLCInventors: Collin McKinney, Rob Musser
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Publication number: 20110214979Abstract: The present invention discloses a reactive distillation apparatus for multistage counter-current rotating bed and its application, the apparatus comprises a closed shell, in the center of which a revolving shaft linking each shell section is set, the said shaft is provided with two or more rotors in series connection, a feeding inlet, a reflux inlet and an outlet of the gas phase are mounted on the top end face of the shell while a waste liquid outlet and an inlet of the gas phase are set on the bottom end face of the shell, the said shell consists of an upper section of the shell and a lower section of the shell along the axial direction, the said rotor consists of a rotating disc firmly connecting with the revolving shaft and a static disc mounted to the shell, a group of concentric dynamic filler rings but with different diameters are installed at intervals along the radial direction, wherein the wall of the dynamic filler rings is holed, and the ring clearance between the dynamic filler rings is configureType: ApplicationFiled: June 12, 2010Publication date: September 8, 2011Applicant: Beijing University of Chemical TechnologyInventors: Jian-Feng Chen, Peng-Yuan Zhang, Guang-Wen Chu, Hai-Kui Zou, Wei Wu, Qin Shi
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Patent number: 7955476Abstract: A multiple application recycling and purification device has a coaxial core that is horizontally oriented, non-rotating, cylindrical distillation chamber. The enhanced, completely coaxial configuration continuously cleans the entire distillation chamber and spreads a thin film of liquid to enhance distillation and positively aid in the removal of remaining contaminants. Through a timed and positioned valve, the device removes and purges lower-temperature contaminants. Timed valves and sensors control all phases of the distillation to provide a coaxially integrated, stand-alone, adaptable, scalable and maintenance free distillation unit that self-monitors, self-cleans and economically functions to produce the pure distilled liquid, e.g., water. This device can be modified to purify any numerous array of liquids and can be scaled to produce any amount of purified liquids for either household, commercial, or industrial applications.Type: GrantFiled: January 18, 2007Date of Patent: June 7, 2011Assignee: Mansur CorporationInventor: Pierre G. Mansur
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Publication number: 20100243425Abstract: The system contains a liquid-tight enclosure. An input source is connected to the liquid-tight enclosure for inputting water into the liquid-tight enclosure. A heating element is in thermal communication with at least a portion of the water within the liquid-tight enclosure. A plurality of substantially vertical plates are aligned along a substantially horizontal axis within the liquid-tight enclosure. Each of the substantially vertical plates has an opening. A groove is formed along each of the substantially vertical plates. A first end of the groove on each of the substantially vertical plates is proximate to the opening. At least one manifold extends through a plurality of the openings of the substantially vertical plates. The manifold is in fluid communication with a plurality of the first ends of the grooves. An output opening is formed in the liquid-tight enclosure. The output opening is arranged in fluid communication with the manifold.Type: ApplicationFiled: October 2, 2009Publication date: September 30, 2010Inventor: Samuel T. Kjellman
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Publication number: 20100193345Abstract: The invention relates to a rotary evaporator comprising a rotary drive having a hub and a clamping insert with a sleeve-like basic shape, in particular a clamping sleeve, for the clamping of a steam leadthrough formed as a hollow glass shaft in the hub of the rotary drive, wherein the clamping insert has a longitudinal axis and a first and a second axial end, wherein the clamping insert has two clamping sections which are arranged spaced apart from one another in the longitudinal direction and which each have an outer cross-section tapering toward the first end and of which the clamping arrangement arranged closer to the second end has a larger maximum outer cross-section.Type: ApplicationFiled: January 28, 2010Publication date: August 5, 2010Applicant: HANS HEIDOLPH GmbH & Co. KGInventor: Joachim Carl
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Patent number: 7749360Abstract: A vapor based liquid purification system and process utilizes an evaporator for evaporating a liquid into a vapor and a vapor condenser for condensing the vapor into the processed liquid. The vapor condenser has a stator and a rotor, with the rotor disposed for rotation about the stator. The stator and the rotor each have protrusions proximate to an inlet of the vapor condenser. These protrusions cooperate to draw vapor from the evaporator into the vapor condenser. The stator and the rotor each further have at least one axially extending ridge. These ridges cooperate to move a mixture of the vapor and the processed liquid towards at least one drain in the rotor where the processed liquid is communicated to an outlet of the vapor condenser. A multi-level vapor based purification system may also be utilized.Type: GrantFiled: April 5, 2006Date of Patent: July 6, 2010Inventor: Wesley K. Waldron
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Patent number: 7718033Abstract: A one step method and system for producing nanofluids by a particle-source evaporation and deposition of the evaporant into a base fluid. The base fluid such (i.e. ethylene glycol) is placed in a rotating cylindrical drum having an adjustable heater-boat-evaporator and heat exchanger-cooler apparatus. As the drum rotates, a thin liquid layer is formed on the inside surface of the drum. A heater-boat-evaporator having an evaporant material (particle-source) placed within its boat evaporator is adjustably positioned near a portion of the rotating thin liquid layer, the evaporant material being heated thereby evaporating a portion of the evaporant material, the evaporated material absorbed by the liquid film to form nanofluid.Type: GrantFiled: July 12, 2006Date of Patent: May 18, 2010Assignee: The United States of America as represented by the United States Department of EnergyInventors: Milivoje Kostic, Mihajlo Golubovic, John R. Hull, Stephen U. S. Choi
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Patent number: 7610768Abstract: A rotary multi-stage distiller for recovery of water from wastewater is provided. The rotary multi-stage distiller of the present invention can recover water from a wide variety of aqueous wastewaters such as, but not limited to, urine, condensate from air conditioning systems, wash water containing foaming soaps, seawater or polluted water. The multi-stage distiller can operate under vacuum conditions permitting the distillation to occur at low temperatures. The multi-stage distiller uses centrifugal forces for fluid pumping and for vapor/liquid separation. The multi-stage distiller comprises hydraulic seals for each stage which eliminate contamination of clean, recovered water by condensed waste water during the regeneration process. The multi-stage distiller also comprises a stationary shaft of stacked segments where each segment is associated with an individual stage of the multi-stage distiller.Type: GrantFiled: November 9, 2005Date of Patent: November 3, 2009Assignee: Honeywell International Inc.Inventors: Alex M. Lubman, Allen K. MacKnight, Volodimir G. Rifert, Ivan V. Zolotukhin, Vladimir I. Usenko, Petr A. Barabash, Aleksandr P. Strikun
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Patent number: 7611604Abstract: The invention relates to a method and a device for the production of pure steam. A falling-film evaporator is used. Of the water-steam mixture leaving the evaporator unit, part of the water is collected at the bottom of the device, and a fraction mainly consisting of steam enters a rising spiral channel for the separation of impurities. In the periphery of the spiral channel apertures are provided for separating impurity-containing droplets, which condense on a surface outside the apertures. The liquid formed is removed from the device. The water phase collected at the bottom enters a recycle line connected to the feed end of the evaporator unit. Feed water is supplied to the recycle line to compensate for pure steam consumption.Type: GrantFiled: August 28, 2003Date of Patent: November 3, 2009Assignee: STERIS Europe Inc.Inventors: Mauri Salmisuo, Ilkka Olavi Laitinen
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Patent number: 7597784Abstract: Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, and a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product. Other embodiments of the invention are directed toward heat management, and other process enhancements for making the system especially efficient.Type: GrantFiled: November 13, 2003Date of Patent: October 6, 2009Assignee: DEKA Products Limited PartnershipInventors: David F. Bednarek, Jason A. Demers, Timothy P. Duggan, James L. Jackson, Scott A. Leonard, David W. McGill, Kingston Owens
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Patent number: 7591930Abstract: A thin-film evaporator with a vertical drum (1), a supply line (4) that is arranged in the upper region of the drum (1) and is used to supply a medium to be evaporated, a heating jacket (3) arranged on the periphery of the drum and forming vapors, a discharge line (20) for discharging the residue left in the lower end of the drum, and a condenser (11) supplied with a coolant, for increasing the separating capacity and optionally for performing chemical reactions, is characterized in that an inner device (24) influencing the action of the thin-film evaporator is provided in the path of the vapors from the heating jacket (3) to the condenser (11).Type: GrantFiled: March 31, 2006Date of Patent: September 22, 2009Assignee: VTU Holding GmbHInventors: Wolfgang Glasl, Matthaeus Siebenhofer, Michael Koncar
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Publication number: 20090134004Abstract: This invention improves efficiencies of existing distilling devices and provides the opportunity to utilize latent heat for heating or cooling purposes. Sufficient heat sources or cooling sinks can drive the invention for mechanical power production. The innovative use of an elongated chamber hydraulic column positive pressure at the bottom to drive condensation; and pertaining negative pressure in a sealed volume at the top to evince evaporation give a new capability. Repeated mechanical inversions of the chamber allows the evaporated vapor volumes to be compressed and driven to condense by the fluid hydraulic column as a piston, eliminating requirements for seals. This allows operation with many fluid separations and in many physical environmental regimes, both internal to the elongated chamber and externally.Type: ApplicationFiled: November 26, 2008Publication date: May 28, 2009Inventor: William J. Asprey
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Patent number: 7507316Abstract: The solar still has a frame, an evaporator within the frame and a glass sheet supported by the frame and spaced above the evaporator. The evaporator has a peripheral flange in contact with the edge of the glass sheet. The glass sheet and peripheral flange are nested within an inwardly facing channel on the frame, the sealing between the glass and the flange being by surface tension of water between the glass and the flange.Type: GrantFiled: April 1, 2003Date of Patent: March 24, 2009Inventor: John Ward
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Patent number: 7503997Abstract: A centrifugal evaporator includes a chamber in which sample containers are carried and rotated by a rotor and are pivotally mounted so as to swing up to a substantially horizontal orientation as the rotor rotates. The evaporator includes an infra-red source to direct infra-red radiation towards the rotor and the sample containers carried thereon, to heat at least the latter and any sample material therein. A non-contact temperature sensing infra-red pyrometer having a sensor with a defined field of view is mounted in the chamber, such that while the rotor as such is substantially out of its field of view, each sample container at least partly occupies the pyrometer field of view for a part of each rotation of the rotor. The positions of the infra-red source and the pyrometer components are selected so that the radiation from the infra-red source does not impinge on the pyrometer sensor.Type: GrantFiled: October 29, 2003Date of Patent: March 17, 2009Assignee: Genevac Ltd.Inventors: Roger Lee-Smith, Richard Smith, Duncan Guthrie
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Patent number: 7501046Abstract: An evaporation sleeve is placed within a solar distillation loop apparatus to increase the amount of water evaporated by the apparatus. The evaporation sleeve is rotationally attached within the above ground portion of the solar distillation loop so the sleeve lifts impure water into the air flow within the system. The evaporation sleeve significantly increases the water surface area available to the air flow within a solar distillation loop.Type: GrantFiled: May 4, 2005Date of Patent: March 10, 2009Assignee: The United States of American, as represented by the Secretary of the InteriorInventor: James Edward Constantz
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Patent number: 7465375Abstract: Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In an embodiment of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product, and an electric motor with motor rotor and magnets hermetically sealed within the fluid pressure boundary of the distillation system.Type: GrantFiled: November 13, 2003Date of Patent: December 16, 2008Assignee: DEKA Products Limited PartnershipInventors: Jason A. Demers, Scott A. Leonard, Kingston Owens
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Patent number: 7427336Abstract: 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 evaporation chambers that are isolated from each other. The interiors of at least some of the blades form the composite condensation chamber. The exteriors of the blades and the inner surface of the housing cooperate to form the composite evaporation chamber.Type: GrantFiled: June 17, 2004Date of Patent: September 23, 2008Assignee: Zanaqua Technologies, Inc.Inventor: William H. Zebuhr
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Patent number: 7300538Abstract: 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 and across the rotating surface. As the material moves radially, it evaporates into a vapor which is then transported to one or more nozzles. From the nozzles, the vapor is applied to a substrate and condensed. The spinning disk evaporator enables the evaporation of a wider variety of organic liquids greater reliability in continuous operation, a decrease in maintenance, and a larger and more constant material flow rate.Type: GrantFiled: February 16, 2005Date of Patent: November 27, 2007Assignee: 3M Innovative Properties CompanyInventors: Charles Daniel Lemme, Marc G. Langlois
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Publication number: 20070170049Abstract: A multiple application recycling and purification device has a coaxial core that is horizontally oriented, non-rotating, cylindrical distillation chamber. The enhanced, completely coaxial configuration continuously cleans the entire distillation chamber and spreads a thin film of liquid to enhance distillation and positively aid in the removal of remaining contaminants. Through a timed and positioned valve, the device removes and purges lower-temperature contaminants. Timed valves and sensors control all phases of the distillation to provide a coaxially integrated, stand-alone, adaptable, scalable and maintenance free distillation unit that self-monitors, self-cleans and economically functions to produce the pure distilled liquid, e.g., water. This device can be modified to purify any numerous array of liquids and can be scaled to produce any amount of purified liquids for either household, commercial, or industrial applications.Type: ApplicationFiled: January 18, 2007Publication date: July 26, 2007Inventor: Pierre G. Mansur
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Patent number: 7153396Abstract: In a rotary evaporator, the rotating speed of the rotating flask is automatically controlled or regulated dependent upon a detected process value, particularly the vibration behavior or the mass moment of inertia of the rotating flask.Type: GrantFiled: March 14, 2002Date of Patent: December 26, 2006Inventor: Hans Georg Genser
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Patent number: 7150807Abstract: Method and system for evaporating at least one substance. During at least one dosing phase (TG) a predefined or predefinable quantity of a product (M) which contains at least one substance to be evaporated is imported via a feed system (7, 14, 17, 33, 36) into a revolving vessel (2). The revolving vessel is rotated around an axis of rotation (R) and appropriate process conditions for the evaporation of at least one substance are generated or maintained. The flow (F) of the product (M) is automatically controlled or regulated by the feed system (14, 17) during the dosing phase (TG) in particular as a function of at least one process parameter and/or of at least one characteristic property of the product. The product (M) is imported into the revolving vessel (2) in the course of the dosing phase only during predefined feed periods (t1, t2) that are interrupted by intervening intervals and especially idle intervals (t1, t2).Type: GrantFiled: July 3, 2002Date of Patent: December 19, 2006Inventor: Hans Georg Genser
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Patent number: 7087140Abstract: A carbonizing waste processing apparatus is operable to rotate and heat a radiant tube for carbonizing waste therein so as to generate granular char and vapors from the waste, transfer waste into an upstream end of the tube, temporarily impede movement of the waste through the tube at upstream and downstream locations therein so as to ensure that residence time of the waste in the tube is sufficient at the upstream location to carry out evaporation of moisture from the waste and at the downstream location to elevate the temperature of any solids in the waste for completion of carbonization of the waste, discharge the granular char and vapors from the tube, and flow the generated and discharged vapors through a succession of finned heat exchanger tubes so as to condense and separate the vapors into oil, water and methanol.Type: GrantFiled: August 12, 2002Date of Patent: August 8, 2006Inventor: Harry H. Menian
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Patent number: 6908533Abstract: An evaporator and condenser unit for use in distilling a liquid, such as water, includes a rotary heat exchanger plate having a plurality of folds or pleats. Adjacent panels of the folded plate define spaces between their oppositely facing surfaces, and these spaces are alternatingly configured as evaporating and condensing chambers. The evaporating chambers, moreover, are defined between adjacent panels that are joined at an outer diameter fold, while the condensing chambers are defined between adjacent panels that are joined at an inner diameter fold. The evaporating chambers are thus closed at their outer diameter ends and open at their inner diameter ends, while the condensing chambers are closed at their inner diameter ends and open at their outer diameter ends.Type: GrantFiled: January 17, 2002Date of Patent: June 21, 2005Assignee: Ovation Products CorporationInventor: William H. Zebuhr
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Patent number: 6860966Abstract: 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 operating under conditions that satisfy the relationships defined by Equations I and II. 5.3*1024RL? exp(?24123/T)/m<C??I 100?(4960AP/Tm)<C??II; Yields are maximized wherein values for feed rate (m) and percent solids (C) are selected to provide a maximum value for the output, Q, determined from the equation m*C=Q and the melt viscosity of the polyphenylene ether product is less than 50,000 centipoise at the operating temperature of the cylindrical heating chamber.Type: GrantFiled: November 12, 2001Date of Patent: March 1, 2005Assignee: General ElectricInventors: David Parrillo, Probjot Singh
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Patent number: 6846387Abstract: An evaporator and condenser unit for use in distilling a liquid, such as water, includes a rotary heat exchanger plate having a plurality of accordion-style folds, and having its two ends joined together so as to give the folded plate a generally circular form. The adjacent panels of the folded plate define spaces between their oppositely facing surfaces, and these spaces are alternatingly configured as evaporating and condensing chambers. The evaporating chambers have their inner edges sealed by corresponding folds, while the condensing chambers have their outer edges sealed by corresponding folds. The folded plate is disposed between first and second end plates, and is mounted for rotation about its axis in a housing having a sump containing the liquid to be distilled. Liquid is supplied to the evaporating chambers and compressed vapor is supplied to the condensing chambers. Condensate is removed from the condensing chambers.Type: GrantFiled: July 5, 2000Date of Patent: January 25, 2005Assignee: Ovation Products CorporationInventor: William H. Zebuhr
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Publication number: 20040200580Abstract: A method of protectively heating a microtitre well plate from below using infra-red radiation in a centrifugal evaporator, wherein a barrier plate is placed in contact with and surrounding the lower ends of the wells. The barrier plate is adapted to convey heat energy to the wells and contents thereof and is selected to be substantially non-transmittive of radiation having wavelengths in the range 200 nm to 3000 nm, and the surface of the barrier plate which is to receive the wells includes a plurality of sockets in which the closed lower ends of the wells are a snug fit. The plate is adapted to fit between the underside of the wells and a swinging sample holder mount of a centrifugal evaporator, or a shelf of a swinging sample holder mount, having two or more shelves for stacking well plates one above the other in such an evaporator.Type: ApplicationFiled: August 8, 2003Publication date: October 14, 2004Inventors: Duncan Guthrie, John Poole, Mike Sherwen
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Patent number: 6802941Abstract: 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 evaporation chambers (56) simultaneously but not at a rate that is adequate to maintain the wetting required for efficient transfer of heat to the liquid. A scanning sprayer (140) supplements this steady spray with spray from nozzles (142 and 144) into only a few of the evaporation chambers at a time, visiting all of them cyclically. The overall rate of spray from the two sources thus combined to spray the chamber cyclically maintains proper wetting even though on average it is lower than the rate that would be required of a constant-rate spray into all of the evaporation chambers.Type: GrantFiled: January 18, 2001Date of Patent: October 12, 2004Assignee: Ovation Products CorporationInventor: William H. Zebuhr
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Publication number: 20040195083Abstract: The solar still has a frame, an evaporator within the frame and a glass sheet supported by the frame and spaced above the evaporator. The evaporator has a peripheral flange in contact with the edge of the glass sheet. The glass sheet and peripheral flange are nested within an inwardly facing channel on the frame, the sealing between the glass and the flange being by surface tension of water between the glass and the flange.Type: ApplicationFiled: April 1, 2003Publication date: October 7, 2004Inventor: John Ward
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Patent number: 6740206Abstract: A rotary evaporator including a rotating flask (2) to hold the substances to be evaporated, and a drive (6) to rotate the rotating flask around an axis of rotation (R) that runs through the rotating flask, wherein the rotating flask additionally can be swiveled around a swiveling axis (S) which runs outside of the rotating flask and, relative to the force of gravity (G), runs above the axis of rotation of the rotating flask.Type: GrantFiled: February 20, 2002Date of Patent: May 25, 2004Inventor: Hans Georg Genser
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Patent number: 6716320Abstract: A liquid sample 3 held in an open container 2 and including a volatile solvent, is evaporated by continuously removing inert gas rich in vapor by means of a suction tube 5 whose open end is held close to the top surface of the liquid. Vapor in the gas is then extracted in a refrigerated condensing vessel 6, from where the purified gas is fed by a pump 7 for recirculation back into a sealed chamber 1 in which the container is mounted. In a modification, the inert gas is fed directly through a nozzle 17 into the container 2 wile the gas/vapor mixture is extracted from the chamber 1 for recirculation, after passing through a condenser 6 or the like.Type: GrantFiled: April 17, 2000Date of Patent: April 6, 2004Inventor: Michael Cole
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Patent number: 6695951Abstract: 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 injected into the space between half the shells. The centrifugal force causes the liquid to form a thin film along the inward facing surface of the shell. A compressor lowers the pressure adjacent the thin film causing the liquid to boil. The compressor carries the vapor to the other side of those shells at a slightly higher temperature. There the vapor encounters the wall, which is cooler because its heat was transferred to boil the contaminated liquid. The vapor condenses, and rotation throws the condensate against the adjacent wall where it is collected. When condensing, the heat of condensation transfers to the shell for boiling the incoming contaminated liquid.Type: GrantFiled: July 18, 2000Date of Patent: February 24, 2004Inventors: Jack G. Bitterly, Steven E. Bitterly
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Patent number: 6689251Abstract: 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 it reintroduces the thus-collected liquid back into the evaporation chamber, where it also adds a minor amount of unrecirculated feed liquid to make up for evaporation and concentrate removal. Simultaneously, a minor amount of feed liquid is fed into one side of a transfer pump (116). During this mode of operation, the impurities concentration in the recirculating liquid tends to increase as a result of the evaporation of pure water vapor. Periodically, the erstwhile recirculating liquid is redirected to the other side of the transfer pump (116), where it causes the feed liquid stored in the transfer pump's first side to be fed without accompanying recirculant liquid into the rotary heat exchanger's evaporation chambers.Type: GrantFiled: January 18, 2001Date of Patent: February 10, 2004Assignee: Ovation Products CorporationInventor: William H. Zebuhr
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Patent number: 6605474Abstract: A method is described for evaporating liquid samples contained in sample holders mounted within a chamber and rotated by the rotor during an evaporation process in which the pressure in the chamber is reduced below atmospheric and the sample holders are rotated at high speed so as to exert centrifugal force on the contents of the holders. Heat is supplied to elevate the temperature of the liquid component of the samples to assist in the evaporation process. The temperature of the sample material is continuously or regularly monitored during the evaporation process and temperature signals are transmitted to a remote computing means which is programmed to generate a control signal for controlling the supply of heat to the samples and controlling the evaporation process. The temperature may be sensed by a probe in a sample holder containing an evaporating liquid sample, or in an adjoining sample holder containing a buffer liquid.Type: GrantFiled: March 8, 2000Date of Patent: August 12, 2003Assignee: Genevac LimitedInventor: Michael Cole
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Publication number: 20030132096Abstract: An evaporator and condenser unit for use in distilling a liquid, such as water, includes a rotary heat exchanger plate having a plurality of folds or pleats. Adjacent panels of the folded plate define spaces between their oppositely facing surfaces, and these spaces are alternatingly configured as evaporating and condensing chambers. The evaporating chambers, moreover, are defined between adjacent panels that are joined at an outer diameter fold, while the condensing chambers are defined between adjacent panels that are joined at an inner diameter fold. The evaporating chambers are thus closed at their outer diameter ends and open at their inner diameter ends, while the condensing chambers are closed at their inner diameter ends and open at their outer diameter ends.Type: ApplicationFiled: January 17, 2002Publication date: July 17, 2003Inventor: William H. Zebuhr
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Publication number: 20030000651Abstract: In a rotary evaporator, the rotating speed of the rotating flask is automatically controlled or regulated dependent upon a detected process value, particularly the vibration behavior or the mass moment of inertia of the rotating flask.Type: ApplicationFiled: March 14, 2002Publication date: January 2, 2003Inventor: Hans Georg Genser