Recirculating Fluid Patents (Class 261/151)
  • Patent number: 11792961
    Abstract: Conditioning systems and methods for providing cooling to a heat load can include an evaporative cooler arranged in a scavenger plenum with a recovery coil downstream of the evaporative cooler. The conditioning systems can operate in various modes, including an adiabatic mode and an evaporative mode, and a blended mode between the adiabatic mode and the evaporative mode, depending on environmental conditions. The blended mode can be enabled by a fluid transmission and retention device fluidically connected to the inlet and outlet of the evaporative cooler, the recovery coil outlet, and the heat load. The fluid transmission and retention device can variably distribute the cooling fluid exiting the recovery coil and the cooling fluid exiting the evaporative cooler to one or both of the heat load and the evaporative cooler inlet. In an example, the fluid transmission and retention device includes a manifold. In another example, the fluid transmission and retention device includes one or more tanks.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: October 17, 2023
    Assignee: Nortek Air Solutions Canada, Inc.
    Inventors: Philip Paul LePoudre, Christopher Regier, Marcel van den Hurk
  • Patent number: 11737239
    Abstract: Conditioning systems and methods for providing cooling to a heat load can include an evaporative cooler arranged in a scavenger plenum with a recovery coil downstream of the evaporative cooler. The conditioning systems can operate in various modes, including an adiabatic mode and an evaporative mode, depending on outdoor air conditions. The systems can operate in a blended mode between the adiabatic mode and the evaporative mode by varying the distribution of return water from the recovery coil into at least partially isolated sections of a storage tank, and selectively directing cold water from the evaporative cooler into the tank. The mix of warm and cold water exiting the tank can be varied to maintain the cold-water supply at or near a set point temperature for the heat load. In an example, the systems can include a pre-cooler in the plenum upstream of the evaporative cooler for pre-conditioning the scavenger air.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: August 22, 2023
    Assignee: Nortek Air Solutions Canada, Inc.
    Inventor: Philip Paul LePoudre
  • Patent number: 10852079
    Abstract: An apparatus has a housing with at least one gutter, a body of fill material disposed in the housing, a liquid distribution system disposed in the housing and positioned above the fill material, a fan positioned below the body of fill material for blowing air upward through the fill material, a liquid collection assembly positioned between the fill material and the fan for collecting the liquid gravitating through the fill material. The liquid collection assembly has at least one troughless, open sided surface element angled so gravity is utilized to capture the down flowing liquid to provide a barrier between the fill media and the fan and to carry the liquid down the surface element and into the at least one gutter.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 1, 2020
    Inventor: Harold D. Curtis
  • Patent number: 10842153
    Abstract: Provided is a method for manufacturing a microbicide having high microbicidal performance for eradicating microbes. This method for manufacturing a microbicide comprises: a step for preparing an inorganic aqueous solution containing an inorganic component having seawater as a raw material thereof, an ozone mixing step for mixing ozone into the inorganic aqueous solution, and a stirring step for stirring the inorganic aqueous solution mixed with ozone and passing through a bubble generation nozzle; wherein, the temperature of the inorganic aqueous solution in the ozone mixing step and the stirring step is 0° C. to 30° C., and when the amount of inorganic aqueous solution treated in the ozone mixing step and the stirring step is defined as X liters and the treatment rate of the ozone mixing step and the stirring step is defined as Y liters/minute, then the microbicide is manufactured by alternately repeating the ozone mixing step and the stirring step for A·X/Y minutes (where A is 30 or more).
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 24, 2020
    Assignee: OPT CREATION, INC.
    Inventors: Tsunejiro Takahashi, Hideki Yamaguchi, Naoaki Misawa
  • Patent number: 10808716
    Abstract: Disclosed is an enthalpy exchanger for changing the enthalpy of a throughflow medium to cool process water coming from an industrial process by passing air, including: an air inlet; an enthalpy exchanger panel guiding medium so the medium exchanges enthalpy with airflows let through by the air inlet; an air throughflow space connecting to the enthalpy exchanger panel so air can only flow into the air throughflow space via the air inlets and the enthalpy exchanger panels; a fan connecting to the air throughflow space and which draws in and blows out air via the air inlet, the enthalpy exchanger panel and the air throughflow space; and a rotation-symmetrical airflow-guiding element extends both into the air throughflow space and outside the enthalpy exchanger; the airflows in the air throughflow space converge at any position and are substantially free of vortices, turbulences and areas without suction.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: October 20, 2020
    Assignee: ECO-LOGICAL ENTERPRISES B.V.
    Inventor: Augustinus Wilhelmus Maria Bertels
  • Patent number: 10634373
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 28, 2020
    Assignee: DRI-STEEM Corporation
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Patent number: 9869476
    Abstract: A temporary or emergency heating and cooling apparatus and method for use in households without electrical power, but still supplied with water pressure and hot water, and with water discharge to a suitable open-loop discharge location such as a sewer or drain field. The apparatus in a preferred form comprises a water-powered fan adapted to be temporarily connected to a household cold water tap, a radiator thermally coupled to the fan flow path for heat transfer and supplied with either hot or cold water from a household tap, and a water discharge connection from the water-powered fan and the radiator to a household discharge or drain.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: January 16, 2018
    Inventors: Valdemar R. Losse, II, Valdemar R. Losse
  • Patent number: 9841200
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: December 12, 2017
    Assignee: DRI-STEEM CORPORATION
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Patent number: 9494359
    Abstract: A cryogenic system includes a superconducting magnet (20) in a reservoir of liquid helium (LH). Helium vapor (VH) rises and contacts a recondenser surface (50, 50?, 50?) on which the helium vapor (VH) condenses into liquid helium and flows by gravity off a lower edge of the recondenser surface. A plurality of fins (52) extend from the recondenser surface or a plurality of grooves (52?, 52?) are cut into the recondenser surface to disrupt the film thickness and to provide a path by which droplets of the liquid helium leave the recondenser surface without travelling a full vertical length of the recondenser (30).
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: November 15, 2016
    Assignee: Koninklijke Philips N.V.
    Inventors: Glen G. Pfleiderer, Robert A. Ackermann
  • Patent number: 9316394
    Abstract: A system for the recovery of heat from gases. A heat recovery system uses a wetted heat transfer surface to recover heat from a bulk gas, such as a flue gas. The system utilizes wetted heat transfer tubes which are sprayed in a manner to minimize the film thickness of the wetting on the heat transfer tubes. To improve efficiency, the contact liquid used to wet the heat transfer tubes is maintained at a temperature between the temperature of the exiting cooled gas and the temperature of the inlet (cool) process fluid to be heated. Such heat recovery system design criteria enhance performance, and thus enable more efficient heat recovery to be practiced, particularly in systems where combustion gases are encountered.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 19, 2016
    Inventor: Willliam D. Carson
  • Patent number: 9255739
    Abstract: A heat exchange apparatus is provided with an indirect evaporative heat exchange section. The indirect evaporative heat exchange section includes a series of serpentine tubes, and an evaporative liquid is passed downwardly onto the indirect heat exchange section. The evaporative liquid is collected in a sump and then pumped upwardly to be distributed again across the indirect heat exchange section. An improved heat exchange apparatus is provided with an indirect evaporative heat exchange section including a series of serpentine tubes with run sections and return bend sections of both normal and increased height. A secondary spray system or a direct heat exchange section may be provided in the vertical spacing between run section formed by the increased height return bends.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 9, 2016
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: David Andrew Aaron, Zan Liu, Branislav Korenic, John Edward Rule, Preston Blay, Philip S. Hollander, Glenn David Comisac, Gregory Michael Lowman
  • Publication number: 20150123294
    Abstract: An evaporative HVAC apparatus is disclosed. In at least one embodiment, the apparatus provides an at least one housing having an inner surface that defines a substantially tubular-shaped air passage extending therethrough. An absorbent wicking layer is formed immediately adjacent to at least a portion of the inner surface of the housing, and a thermal layer is formed immediately adjacent to an inner surface of the wicking layer. The housing also provides an at least one fluid inlet aperture through which a fluid line extends a distance into the housing so as to be in fluid communication with the wicking layer. Thus, a fluid is selectively delivered to the wicking layer through the fluid line which, in turn, permeates the thermal layer and evaporates into the air located immediately adjacent an exposed inner surface of the thermal layer, thereby affecting the temperature of the air moving through the air passage.
    Type: Application
    Filed: July 21, 2014
    Publication date: May 7, 2015
    Applicant: Nano Evaporative Technologies, Inc.
    Inventor: Jonathan S. Harms
  • Publication number: 20140246795
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Application
    Filed: December 10, 2013
    Publication date: September 4, 2014
    Applicant: DRI-STEEM Corporation
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Publication number: 20140203459
    Abstract: A steam distribution apparatus having a heat exchanger header defining a chamber; steam distribution apparatus communicating with the heat exchanger chamber; a source of steam at a pressure higher than atmospheric; a heat exchanger having one end communicating with the source of steam and another end for communicating with the chamber and steam dispersion apparatus; and a valve. The valve operates the heat exchanger in an open-loop configuration which supplies humidification steam to the steam distribution apparatus at atmospheric pressure and operates the heat exchanger in a closed-loop at the steam pressure higher than atmospheric for heating the heat exchanger chamber wherein condensate within the chamber or steam distribution apparatus can be converted back to humidification steam.
    Type: Application
    Filed: January 21, 2013
    Publication date: July 24, 2014
    Applicant: National Environmental Products Ltd.
    Inventors: Zev W. KOPEL, Eric Landry, Antonio Di-Fruscio
  • Patent number: 8662479
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 4, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Patent number: 8641021
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: February 4, 2014
    Assignee: DRI-STEEM Corporation
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Patent number: 8623174
    Abstract: A liquid evaporation system for evaporating clean water from a reservoir of wastewater includes a liquid evaporator to evaporate and separate water vapor from the wastewater in a confined space, an air blower to supply air to the liquid evaporator, and a wastewater heating system arranged to collect heat to heat the wastewater in the reservoir.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 7, 2014
    Assignee: Heartland Technology Partners LLC
    Inventors: Bernard F. Duesel, Jr., Craig Clerkin
  • Publication number: 20130334717
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 19, 2013
    Applicant: DRI-STEEM Corporation
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Patent number: 8608140
    Abstract: A dust removing and cooling apparatus is provided. High temperature dust-containing harmful gases are exhausted in a state where 99.9% of airborne particulates are removed from the high temperature dust-containing harmful gases at a temperature that is similar to the air so that dust collecting efficiency is very high and white plume can be avoided.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: December 17, 2013
    Inventor: Jae Ouk Jung
  • Patent number: 8585869
    Abstract: Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: November 19, 2013
    Assignee: Heartland Technology Partners LLC
    Inventors: Bernard F. Duesel, Jr., Craig Clerkin
  • Patent number: 8534645
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: September 17, 2013
    Assignee: DRI-STEEM Corporation
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Publication number: 20130175718
    Abstract: A system to control drips from rotary atomizers without the use of recirculation pumps or drain tubes. The drips are collected in a catch basin suspended under the atomizer and reintroduced to the rotary atomizer by one of three methods; a mechanical pumping action from a cone or impeller extending from the rotating part of the atomizer, a suction from a Venturi section built into the fluid delivery tube, or by aspirating the fluid back into the atomizer by using the exhaust air from an air motor. Additionally, to prevent bacterial growth and to completely eliminate any moisture after shutdown, a heating element can be incorporated into the catch basin to sterilize and evaporate any excess fluid.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 11, 2013
    Applicant: Ledebuhr Industries, Inc.
    Inventors: Richard Ledebuhr, Michael H. Hetherington
  • Patent number: 8434745
    Abstract: An indirect hot water cooling device for a steam humidifier. The steam humidifier has a body of hot water and a drain valve for draining the body of hot water. The device includes a reservoir separate from the steam humidifier and receiving hot water from the steam humidifier drain valve; a connection from the steam humidifier drain valve to the reservoir; a re-circulating source of chilled water; a connection from the re-circulating source of chilled water to the reservoir; and a drain outlet from the reservoir. A method of draining a steam humidifier includes the steps of: draining the hot water in the humidifier to a separate reservoir; supplying re-circulating chilled water to the separate reservoir; and draining cooled water from the separate reservoir.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: May 7, 2013
    Assignee: Pure Humidifier Co.
    Inventor: Matthew W. Abel
  • Publication number: 20130019845
    Abstract: Systems and methods for a charge-air-cooler are provided. The system may include an engine air passage, a charge-air-cooler including a plurality of heat exchange passages, and a condensate collector positioned within an interior of the charge-air-cooler, wherein the condensate collector is in fluid communication with at least one heat exchange passage and the engine air passage.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Robert Hornblower Meyer
  • Patent number: 8343316
    Abstract: A vacuum dehydrator for processing an oil containing entrained contaminants such as water, air, and particulates comprises a tower enclosing upper and lower chambers. A random packing is contained in the upper chamber. The oil is preheated to a temperature above the boiling point of water and is introduced into the upper chamber for downward flow through the random packing into the lower chamber. Entrained air and water is retained as water vapor in the upper chamber, and particulates are retained in the random packing. Heated ambient air is introduced into the lower chamber for upward flow through the random packing into the upper chamber, and the upper chamber is cooled to condense the water vapor. Oil and condensed water are pumped respectively from the lower and upper chambers.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 1, 2013
    Assignee: Siemens Industry, Inc.
    Inventors: Mortimer Daniel Williams, John G. Donnelly, Eric M. Laliberte, J. Rafael Lazo, Juan Alejandro Segrelles Sacristan, Anselmo Garcia Gracia
  • Publication number: 20120273980
    Abstract: “Systems and methods for circulating air in an enclosed environment are disclosed. In some embodiments, the system includes an inlet to receive air from outside of the enclosed environment and an air handling unit coupled to the inlet and also configured to receive circulated air from the enclosed environment. The air handling unit can be configured to affect a temperature of at least one of the received outside air and the received circulated air. Based on the received outside air and the received circulated air, the air handling unit can be further configured to generate air for supplying to the enclosed environment.
    Type: Application
    Filed: April 5, 2012
    Publication date: November 1, 2012
    Applicant: ENVERID SYSTEMS, INC.
    Inventor: Udi Meirav
  • Patent number: 8282084
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 9, 2012
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Publication number: 20120111194
    Abstract: To provide a gas mixture separation apparatus and a method which can reduce the energy consumption necessary to separate one type of gas, such as CO2, from a gas mixture, such as combustion exhaust gas or process gas, to reduce the operating cost of the apparatus. A gas mixture separation apparatus includes a gas hydrate formation part for hydrating one type of gas contained in a gas mixture containing a plurality of gas components to form a gas hydrate slurry, a dehydration part for dehydrating the gas hydrate slurry, and a gas hydrate decomposition part for decomposing and regasifying the gas hydrate obtained by the dehydration, and is characterized in that the water removed from the gas hydrate slurry in the dehydration part and the water generated when the gas hydrate is decomposed in the gas hydrate decomposition part are mixed together and the mixed water is introduced into the gas hydrate formation part as circulating water.
    Type: Application
    Filed: March 30, 2010
    Publication date: May 10, 2012
    Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Mitsuru Miyagawa, Kazuyoshi Matsuo, Souichiro Sakurai, Masakazu Sakai, Akira Kidoguchi
  • Publication number: 20120038070
    Abstract: An indirect hot water cooling device for a steam humidifier. The steam humidifier has a body of hot water and a drain valve for draining the body of hot water. The device includes a reservoir separate from the steam humidifier and receiving hot water from the steam humidifier drain valve; a connection from the steam humidifier drain valve to the reservoir; a re-circulating source of chilled water; a connection from the re-circulating source of chilled water to the reservoir; and a drain outlet from the reservoir. A method of draining a steam humidifier includes the steps of: draining the hot water in the humidifier to a separate reservoir; supplying re-circulating chilled water to the separate reservoir; and draining cooled water from the separate reservoir.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicant: Pure Humidifier Co.
    Inventor: Matthew W. Abel
  • Patent number: 8110396
    Abstract: The invention relates to a thermocycler module for heating and/or cooling of a thermocycling device comprising a thermal switch, a heating block and a heat sink. The thermal switch comprises a thermoconducting liquid, e.g. a magnetic fluid or a liquid metal, and a stimulating unit, e.g. a magnetic unit or a Lorentz-force unit, for moving the thermoconducting liquid. The movement of the thermoconducting liquid provides, in an on-state of the thermal switch, a thermal connection between the heating block and the heat sink.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: February 7, 2012
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Daniel Bommer, Thomas Schlaubitz
  • Publication number: 20120006324
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Patent number: 8052127
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: November 8, 2011
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Patent number: 8052847
    Abstract: A system and method for removing water from a liquid desiccant such as a glycol used to dry cooled air in order to restore the desiccant to a purity up to around 97% in a closed continuous flow process. Liquid desiccant can be sprayed into cooled air in a conditioner where it gains moisture. The wet or gained desiccant can be optionally preheated in an economizing heat exchanger and then routed into a concentrator. Desiccant pure to around 97% can be removed from the concentrator, passed through an economizing heat exchanger to provide the preheating and returned to the conditioner holding area. The concentrator can be heated by steam or other means such as natural gas to boil the wet desiccant causing mixed vapor to enter a vertical distillation column where most of the glycol condenses out on the column packing or plates and returns to the concentrator.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: November 8, 2011
    Assignee: Niagara Blower Company
    Inventors: Matthew Koban, Phillip Rowland, Michael Harvey, Peter Demakos
  • Publication number: 20110265648
    Abstract: Systems and methods for circulating air in an enclosed environment are disclosed. An inlet can be provided to receive an outside air from outside of the enclosed environment and an air handling unit coupled to the inlet to receive the outside air through the inlet and configured to receive a circulated air from the enclosed environment. The air handling unit can be configured to affect a temperature of at least one of the received outside air and the received circulated air. Based on the received outside air and the received circulated air, the air handling unit can be further configured to generate air for supplying to the enclosed environment.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 3, 2011
    Inventor: Udi Meirav
  • Patent number: 8047511
    Abstract: A humidity control device is for controlling the humidity of air in a target space, and the humidity control device comprises: a processor for controlling the humidity of air in the target space by passing air through a hygroscopic liquid L; a regenerator for regenerating the hygroscopic liquid L used for the process by the processor; a hygroscopic-liquid pipe path (50), provided so as to pass through a ventilation opening (70) intended for ventilating the target space, for transferring the hygroscopic liquid L from the processor to the regenerator; and a discharged-air-utilizing regeneration unit (60) for regenerating the hygroscopic liquid L by passing air to be discharged from the target space through the ventilation opening (70) through the hygroscopic liquid L flowing through the hygroscopic-liquid pipe path (50) toward the regenerator. A humidity control device whose energy utilization efficiency is improved is thus provided.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: November 1, 2011
    Assignee: Dyna-Air Co., Ltd.
    Inventors: Hikoo Miyauchi, Yoshihiro Mikami
  • Publication number: 20110232775
    Abstract: A housing containing a reservoir can be mounted to receive water from an outlet port of a humidifier system. A pump having a pump inlet hydraulically connected to the reservoir volume and a pump outlet adapted to connect to an inlet port on the humidifier system can be controlled to deliver water to the humidifier based on a control signal received at a processor. The reservoir can be flushed based on one or more of an elapsed operating time since the last flush and a total time since the last flush. Flushing can be performed using a re-fill port adapted to receive fresh water from an external water source and draining process that can include creating a siphoning action that causes the water to drain from the reservoir volume. Flow of fresh water into the re-fill port can also be controlled to maintain a proper working water level in the reservoir volume. Related systems, apparatus, methods, and/or articles are also described.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Inventors: David R. Chale, Hao Wang, Jinmei Chen
  • Patent number: 7942387
    Abstract: A system and method for managing water content in a fluid include a collection chamber for collecting water from the fluid with a desiccant, and a regeneration chamber for collecting water from the desiccant and transferring it to a second fluid. An evaporator cools the desiccant entering the collection chamber, and a condenser heats the desiccant entering the regeneration chamber. Diluted desiccant from the collection chamber is exchanged with concentrated desiccant from the regeneration chamber in such a way as to efficiently control the transfer of both mass and heat between the chambers. In one embodiment, mass is not exchanged until one or both of the desiccant levels in the chambers exceeds a predetermined level. Heat is transferred between the two desiccant flows as they are transferred between the chambers. This increases efficiency and reduces the energy input required for the evaporator and the condenser.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: May 17, 2011
    Assignee: DUCool Ltd.
    Inventor: Dan Forkosh
  • Publication number: 20110101549
    Abstract: A humidity control device is for controlling the humidity of air in a target space, and the humidity control device comprises: a processor for controlling the humidity of air in the target space by passing air through a hygroscopic liquid L; a regenerator for regenerating the hygroscopic liquid L used for the process by the processor; a hygroscopic-liquid pipe path (50), provided so as to pass through a ventilation opening (70) intended for ventilating the target space, for transferring the hygroscopic liquid L from the processor to the regenerator; and a discharged-air-utilizing regeneration unit (60) for regenerating the hygroscopic liquid L by passing air to be discharged from the target space through the ventilation opening (70) through the hygroscopic liquid L flowing through the hygroscopic-liquid pipe path (50) toward the regenerator. A humidity control device whose energy utilization efficiency is improved is thus provided.
    Type: Application
    Filed: May 15, 2009
    Publication date: May 5, 2011
    Applicant: DYNA-AIR CO., LTD.
    Inventors: Hikoo Miyauchi, Yoshihiro Mikami
  • Publication number: 20110089583
    Abstract: Provided is a dust removing and cooling apparatus.
    Type: Application
    Filed: February 27, 2009
    Publication date: April 21, 2011
    Inventor: Jae Ouk Jung
  • Patent number: 7815173
    Abstract: A cooler includes a body, a water tank installed in the body for storing cooling water, a pump fixed in the water tank, a water pipe connected to the pump and extending upward, a spray pipe connected to the water pipe, at least one gas cooling device located above the spray pipe, at least one fan fixed on top of the body, at least one wind hole formed in a side of the body, at least one cooling pipe uprightly installed in the body and having an upper portion passing through heat-dispersing chips of the gas cooling device and a lower portion passing through heat-dispersing chips of the water cooling device, and at least one water-heat exchanger below the spray pipe and having a heat-dispersing element. The cooler has two stages of cooling by air and water, having a high effect of swift cooling high temperature to low temperature.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 19, 2010
    Inventor: Yi-Hsiung Lin
  • Publication number: 20100193977
    Abstract: The invention relates to an ozone water production apparatus capable of producing ozone water with a highly versatile and simpler configuration and further producing ozone water having a higher concentration with decomposition by heat suppressed. O2 gas and N2 gas are introduced into an ozonizer (2), and ozone is generated in the ozonizer (2). The generated ozone is mixed with supplied water, and thereafter the mixture is introduced into a circulation pump (4) to dissolve ozone in water. A pipe from the ozonizer (2) is connected to a water pipe connected to the circulation pump (4) using a T-shaped union joint to mix water and the generated ozone gas. Further, the ozone water is heated to a predetermined temperature by a heat exchanger (5a) using hot water as a heat medium.
    Type: Application
    Filed: September 3, 2008
    Publication date: August 5, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroaki Yamamoto, Takashi Minamihonoki, Shinji Masuoka, Yoshishige Ninomiya
  • Patent number: 7700069
    Abstract: Some metal hydrides permit reversible storage and release of hydrogen for a hydrogen using power-generator. But the surfaces of some metal hydrides or metal hydride precursors may be oxidized or have other coatings that inhibit hydrogen absorption or release. Such materials may be suspended in a suitable liquid of supercritical carbon dioxide or liquid nitrogen and subjected to cavitation processing to break up such hydrogen impermeable surfaces or to fracture the particles so as to provide fresh hydrogen penetratable surfaces.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: April 20, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Robert D. Stephens
  • Publication number: 20100032850
    Abstract: A tube in one embodiment is formed with a non-stick coating on its inner outer surface. Preferably, the non-stick coating is fluoropolymer. More preferably the fluoropolymer is PTFE. Another non-stick coating is formed on an inner surface of the tube in another embodiment. The non-stick coating served as a de-fouling layer is capable of preventing impurities in the water flowing through the tubes from precipitating thereonto. Hence, the performance of a cooling tower incorporating the tubes can be increased significantly.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 11, 2010
    Inventor: Sui-Ming Lin
  • Patent number: 7614613
    Abstract: In a gravity fed cooling tower liquid return system having a common header with a plurality of valved sub-headers, a distributive control system, risers on the sub-headers, and sensor/transmitters on the risers, some of the sensor/transmitters controlling the valves on their respective sub-headers, sensing the liquid level in each of the sub-headers, comparing the sensed liquid levels in the distributive control system, and controlling the liquid levels in the sub-headers in response to the sensed liquid levels.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: November 10, 2009
    Assignee: Equistar Chemicals, LP
    Inventor: David B. Shield
  • Publication number: 20090267242
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Application
    Filed: October 16, 2008
    Publication date: October 29, 2009
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Patent number: 7563360
    Abstract: A top temperature T1 of a distillation tower 1 is held below a liquefying temperature of a light fraction by returning a part of an exhaust gas W, which is cooled by a condenser 5, to the upper zone of the distillation tower 1. A bottom temperature T2 is raised up to 300° C. at highest by returning a part of a liquid product P from a re-boiler 3 to a lower zone of the distillation tower 1. When a liquid hydrocarbon L comes in countercurrent contact with a stripping gas G inside the distillation tower 1 with the temperature profile that an inner temperature gradually falls down along an upward direction, mercury is efficiently transferred from the liquid L to a vapor phase without effusion of the light fraction in accompaniment with the exhaust gas W.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: July 21, 2009
    Assignee: Japan Petroleum Exploration Co., Ltd.
    Inventors: Yoshiyuki Yamaguchi, Senichiro Kaku, Kazutoshi Chaki
  • Publication number: 20090121367
    Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 14, 2009
    Inventors: James M. Lundgreen, Robert Russell Nelson
  • Patent number: 7416579
    Abstract: Nanometer sized particles containing titanium and platinum are prepared by a sonochemical process. Compounds of the metals are dissolved, suspended, or diluted in a low vapor pressure liquid medium, preferably at a sub-ambient temperature. A reducing gas is bubbled through the liquid as it is subjected to cavitation to affect the reductive decomposition of the metal compounds. Titanium and platinum are co-precipitated in very small particles.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: August 26, 2008
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Ion C. Halalay, Michael Kevin Carpenter
  • Patent number: 7395676
    Abstract: A portable, evaporative cooling apparatus includes a cabinet for storing cooling water, a water pump, a fan, and a spraying system. The fan is mountable on the cabinet lid and is removable from the cabinet lid for storage within the cabinet. The cabinet has wheels that allow it to be rolled along a surface and a handle for pulling the cabinet along the surface. The apparatus may be retrofit to a standard food cooler.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: July 8, 2008
    Inventor: Steve White
  • Publication number: 20080157411
    Abstract: The invention concerns a device for increasing the relative humidity of an air flow (13), comprising air humidifying means (25) which are arranged in the air flow (13), and which are configured to supply humidifying water to the air flow (13). The invention is characterized in that said air humidifying means (25) are connected to a humidifying circuit (5) which comprises a recycling pump (7) for recycling the humidifying water in the humidifying circuit (5), and a humidifying heat exchanger (13) for heating the humidifying water so that it reaches a temperature lower than boiling point. The invention aims at creating a device enabling the humidifying power to be significantly increased, at a low cost and with little space requirement. Therefor, the humidifying means include a hollow porous material (15) which is connected to the humidifying circuit (5).
    Type: Application
    Filed: March 29, 2006
    Publication date: July 3, 2008
    Inventors: Martin Moritz, Hans Peters