Soluble Or Deliquescent Material Used Patents (Class 95/91)
  • Patent number: 11029044
    Abstract: The invention is a water recovery system that utilizes waste heat and a moving air stream to recover water with minimal use of energy and without the need to move water through filtration devices. The invention may be used for recovery and reuse of water for a wide range of emergency back-up, environmental, industrial, and mission-oriented purposes.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: June 8, 2021
    Assignee: UNITED STATES of AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Jedediah B Alvey, Martin A Page, Axy Pagan-Vasquez
  • Patent number: 9761745
    Abstract: A concentrating solar module comprising a device (D) for managing the moisture contained in a casing (2) of the module (M). The device comprises a housing (12) one of the walls (14) of which is provided with a window (15), a moisture absorbing material provided in the housing (12), a shield (28) provided facing the window (15) and distant therefrom so as to provide a space for the air flow between the window (15) and the shield (28), the shielding means (28) protecting the absorbing material from the concentrated solar radiation. The device is attached to a side wall (4) of the casing (2) such that said window (15) faces an aperture (16) provided inside said side wall (4) ensuring with said window (15) a fluid communication with the internal volume of the module and the shielding means (28) being located inside the solar module (M).
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: September 12, 2017
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Mathieu Mariotto, Florian Degabriel, Thibaut Faucon
  • Patent number: 9748895
    Abstract: A solar module in a concentrating solar system including: a box including a top wall, formed from an optical system, and walls; at least one photovoltaic cell placed in the box; and at least one humidity management device. At least one first wall among the walls includes a principal part contained in a plane. The humidity management device includes a housing defined between the first wall and a cover fixed to the first wall including an occultation part and an inner part forming an air film at the occultation part. A moisture-absorbing material is placed in the housing, at least part of the moisture-absorbing material is located on one side of the plane containing the occultation part.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: August 29, 2017
    Assignees: Commissariat à l'ènergie atomique et aux énergies alternatives, HELIOTROP
    Inventors: Mathieu Mariotto, Mathieu Baudrit, Paul Bellavoine, Jean Edouard De Salins, Florian Degabriel, Philippe Laferriere
  • Publication number: 20150114223
    Abstract: An air dryer with a rotor and desiccant positioned within an interior chamber of the rotor. The desiccant is positioned within the interior chamber of the rotor between the inlet and the outlet. The desiccant is configured to adsorb at least some of the water contained within air flowing from an inlet to an outlet of the rotor. As the rotor is rotated at a regeneration speed at least some of the water adsorbed by the desiccant moves to the outer surface of the desiccant and at least some of the water is separated from the outer surface of the desiccant. The rotor directs water separated from the outer surface of the desiccant to at least one opening in the rotor. A method for drying air by sending the air through desiccant and rotating the desiccant at a regeneration speed to separate water from the desiccant.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: HALDEX BRAKE PRODUCTS CORPORATION
    Inventor: MICHAEL R. JENKINS
  • Patent number: 8894754
    Abstract: A concentrator photovoltaic apparatus for controlling internal condensation includes a light receiving module including one or more photovoltaic cells in a waterproof enclosure, at least one primary lens sealed to the waterproof enclosure for concentrating sunlight, a waterproof breather membrane regulating the pressure of the air located inside the enclosure, and a regenerative desiccant in a thermally decoupled dryer tube or thermally coupled to an internal surface of the enclosure. Smaller breather membrane vents and/or positive time delays between the temperature of the desiccant and the temperature of the enclosure may prolong an adsorption phase of the desiccant, which may substantially contribute to efficiency, reliability, and autonomous control of condensation.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 25, 2014
    Assignee: Semprius, Inc.
    Inventors: Etienne Menard, Scott Burroughs
  • Publication number: 20140338530
    Abstract: The present invention relates to a method for manufacturing H2O composite sorbers consisting of a polymeric matrix in which hygroscopic inorganic salts are dissolved, to composite sorbers consisting of hygroscopic inorganic salts dissolved in a polymeric matrix and their use for the removal of H2O from the housing of devices sensitive to the presence of H2O.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 20, 2014
    Inventors: Sergio RONDENA, Lorena CATTANEO, Johnny MIO BERTOLO, Tania COLLINA, Roberto GIANNANTONIO
  • Publication number: 20140318369
    Abstract: Disclosed are a dehumidification apparatus, and an air conditioning apparatus and system having the same. The dehumidification apparatus includes: a desiccant rotor having a desiccant for adsorbing moisture; and a regeneration unit disposed at one side of the desiccant rotor, for desorbing the moisture adsorbed to the desiccant. The regeneration unit includes at least one of a hollow hot water line containing hot water exchanging heat with the air flowing toward the desiccant rotor. The dehumidification apparatus efficiently reproduces the desiccant for dehumidification and air conditioning.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 30, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventor: Dae-Young LEE
  • Patent number: 8808424
    Abstract: A method and apparatus for removing water vapor from the flue gas stream of an industrial process, including flue gas from a power station. The apparatus including a moisture transfer device, a cooling device, and an optional enthalpy exchange device. The method including running high volumes the flue gas through the moisture transfer device, the cooling device, and the enthalpy exchange device to remove substantially all of the water vapor from the flue gas stream. Also, a method and apparatus for capturing CO2 from flue gas with very low water vapor content. The apparatus including one or more towers packed with a solid sorbent, or including a liquid sorbent. The CO2 from the water vapor free CO2 stream is sorbed by the sorbent and captured for later use.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: August 19, 2014
    Assignee: Munters Corporation
    Inventor: Paul Dinnage
  • Patent number: 8800308
    Abstract: Methods and systems are provided for air conditioning, capturing combustion contaminants, desalination, and other processes using liquid desiccants.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: August 12, 2014
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Jack I. Hanoka, Chaim Hanoka
  • Patent number: 8790450
    Abstract: A humidity sensitive composition which consists: a) of 5 to 50% by weight of a water and/or water vapor absorbing agent; b) 10 to 60% of a water vapor absorbing and releasing agent selected from perlite or vermiculite; c) 5 to 50% of an absorbent for small molecules. Is used as the basis for controlling container rain, sequestering carbon dioxide, and removing ozone and hydrogen sulfide from the air.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 29, 2014
    Assignee: VM3 International Pty Ltd
    Inventor: David John Tomlinson
  • Publication number: 20140165828
    Abstract: A dehydrator for dehydrating air supplied to a power related or mechanical device includes a first container configured to hold a desiccant, a first heater arranged with the first container configured to heat the desiccant in the first container, a second container configured to hold a desiccant, and a second heater arranged with the second container configured to heat the desiccant in the second container. The dehydrator further includes a conduit configured to selectively connect one of the first container and the second container to the power related or mechanical device and a controller configured to selectively operate one of the first heater and the second heater.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: WAUKESHA ELECTRIC SYSTEMS, INC.
    Inventors: Arthur MARTIN, John PRUENTE
  • Publication number: 20140116534
    Abstract: Various embodiments of a heat-exchange dryer apparatus are disclosed. In one embodiment, a heat-exchange dryer apparatus includes a desiccant cartridge comprising desiccant material, a purge-air reservoir secured to the desiccant cartridge, and a compressed-air conduit disposed inside the purge-air reservoir. In another embodiment, a vehicle air-brake system includes an air compressor, a desiccant cartridge comprising desiccant material, and a heat exchange dryer apparatus disposed between the compressor and the desiccant. The temperature of the compressed air is decreased while the temperature of the purge air is increased and the desiccant adsorbs a greater amount of contaminants form the compressed air for improved drying.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Bendix Commercial Vehicle Systems LLC
    Inventors: David W. Howell, Fred W. Hoffman
  • Publication number: 20140041393
    Abstract: An air processing assembly is provided. The assembly includes at least one filter element that includes a filter media having a first end and a second end spaced a predefined distance from the first end. A channel is defined within the filter media, wherein the channel extends from the filter media first end to the filter media second end. The channel defines a flow path for a solid desiccant, wherein air being channeled through the assembly is filtered via the filter media and moisture is substantially removed from the air via the solid desiccant.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 13, 2014
    Inventors: Bhalchandra Arun Desai, Julio Enrique Mestroni, Huong Van Vu
  • Publication number: 20140026749
    Abstract: A method of drying a wet carbon dioxide rich gas stream is disclosed. The method includes: feeding a wet carbon dioxide rich gas stream into a dryer unit, bringing the wet carbon dioxide rich gas stream in contact with a hygroscopic salt in the dryer unit, whereby a dry carbon dioxide rich gas stream and brine are formed, withdrawing the dry carbon dioxide rich gas stream from the dryer unit, and withdrawing the brine from the dryer unit. A system includes a method of drying.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Applicant: ALSTOM Technology
    Inventor: Thomas BECKER
  • Publication number: 20130269522
    Abstract: A humidity control system including a heat pump with desiccant coated passive heat transfer devices on both sides of the heat pump and an air circulation system for alternately directing a process air stream to be humidity controlled and a separate regenerative air stream past each side. As desiccant on one side becomes laden with moisture, the air streams are redirected to the opposite sides of the heat pump so the regenerative stream can remove moisture from the first side. Simultaneously, the air stream to be humidity controlled uses the previously regenerated desiccant on the second side.
    Type: Application
    Filed: December 20, 2010
    Publication date: October 17, 2013
    Applicant: Carrier Corporation
    Inventor: Timothy D. DeValve
  • Publication number: 20130269521
    Abstract: [Object(s)] To provide an adsorbent which achieves a low-emission performance while maintaining the adsorption performance for adsorbing an evaporated fuel component, a canister comprising the adsorbent, and a method for reducing evaporated fuel emission. [Means to Solve the Problems] A second adsorbent (e.g., a granule) filled in a second compartment disposed in a downstream side with respect to a first compartment comprises an activated carbon as an adsorption site and a solid diluent as a non-adsorption site. The adsorbent has a difference in n-butane adsorption volume of not less than 35 g/L between a n-butane vapor concentration of 5% by volume and a n-butane vapor concentration of 50% by volume measured at 25° C., a butane working capacity measured in accordance with ASTM D5228 of not less than 8 g/dL, and a butane desorption rate of not less than 45% when a purge air amount measured in accordance with ASTM D5228 is 30 bed volumes of the adsorbent volume.
    Type: Application
    Filed: February 7, 2013
    Publication date: October 17, 2013
    Inventor: Kuraray Chemical Co., Ltd.
  • Publication number: 20130255597
    Abstract: A system for producing carbon dioxide including a collection subsystem configured to collect a process gas, the process gas including a hydrocarbon, a combustion subsystem configured to combust the hydrocarbon in the process gas and output a gaseous combustion effluent, wherein the gaseous combustion effluent includes carbon dioxide and water, and a separation subsystem configured to separate the carbon dioxide from the gaseous combustion effluent.
    Type: Application
    Filed: February 14, 2013
    Publication date: October 3, 2013
    Applicant: The Boeing Company
    Inventors: John C. Hall, D. Anthony Galasso, Jon A. Magnuson
  • Patent number: 8506679
    Abstract: A water recovery system includes a sorbing bed, a desorbing bed, a heat pump and a controller. The sorbing bed receives a first fluid stream and absorbs and/or adsorbs water from the first fluid stream. The desorbing bed is aligned with and thermally connected to the sorbing bed, and receives a second fluid stream and desorbs water to the second fluid stream. The heat pump is positioned between the sorbing bed and the desorbing bed and transfers heat from the sorbing bed to the desorbing bed. The controller distributes power to the heat pump to maintain an area near the outlet of the desorbing bed at a temperature greater than an area of the sorbing bed aligned with the area near the outlet of the desorbing bed. A method for recovering water from a fluid stream includes directing fluid streams through the described water recovery system.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 13, 2013
    Assignee: Hamilton Sundstrand Space Systems International, Inc.
    Inventors: Edward W. Hodgson, William G. Papale, Jr.
  • Patent number: 8506675
    Abstract: A composite desiccant material is formed by a porous, absorbent substrate of PVA foam or non-woven fibrous sheet is soaked in a solution of a hygroscopic desiccant such as CaCl2. The desiccant is held in pores or fibrous entraining areas sized ranging from 50 microns to 1000 microns. Thin sheets are arranged in a stack in a multi-chamber system, while in an absorption state, uses this stack in a main chamber to absorb H20 from atmospheric gas flowing through that chamber. In a regeneration state atmospheric flow is stopped and low-grade energy releases the H20 from the desiccant into that chamber. Fans circulate moist air through the main chamber and into an adjacent chamber for H20 transfer through or past a partially permeable barrier into a cooling/condensing area. Both H20 and dry gas may be produced.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: August 13, 2013
    Inventor: Joseph Ellsworth
  • Patent number: 8500880
    Abstract: An article comprising a substrate; and an amino acid salt disposed on the substrate. The article may be useful, for example, in the removal of an acid gas component from a gas.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 6, 2013
    Assignee: Corning Incorporated
    Inventor: Dayue David Jiang
  • Publication number: 20130174733
    Abstract: A thermal energy recovery and humidity control system includes a rotating member including a desiccant material located to rotate across a supply air stream and a return airstream. A variable-speed drive element is operably connected to the rotating member to change a rotational speed of the rotating member to allow for switching between thermal energy recovery operation and humidity control operation of the system. A method of climate control includes rotating a desiccant member across both a supply air stream and a return airstream of a climate control system. The desiccant member is rotated at a first rotational speed to transfer thermal energy from the supply air stream to the return air stream. The desiccant member is rotated at a second rotational speed different than the first rotational speed to reduce humidity of the supply air stream.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 11, 2013
    Applicant: CARRIER CORPORATION
    Inventor: Carrier Corporation
  • Publication number: 20130160644
    Abstract: A method and apparatus for energy-efficient desiccant dehumidification of air or other gases to low humidity levels is disclosed. The method and apparatus includes a desiccant rotor (wheel) having more than one dehumidification zone or sector. Separate dehumidification sectors may be used to dehumidify separate air or gas streams, or they may be used to dehumidify a single air or gas stream by passing it through more than one sector. All or a portion of the discharge air or gas from a dehumidification sector is used for all or a portion of reactivation inlet air or gas prior to heating. The desiccant wheel may include more than one reactivation sector, with separate air or gas sources for each sector. The desiccant wheel may include a purge sector between the reactivation and dehumidification sectors to improve the thermal efficiency of the dehumidification process.
    Type: Application
    Filed: June 20, 2011
    Publication date: June 27, 2013
    Applicant: Bry Air PVT. LTD.
    Inventors: Deepak Pahwa, Rajan Sachdev, William Charles Griffiths, kuldeep Singh Malik
  • Publication number: 20130152787
    Abstract: A method of temperature swing adsorption allows separation of a first fluid component from a fluid mixture comprising at least the first fluid component in an adsorptive separation system having a parallel passage adsorbent contactor with parallel flow passages having cell walls which include an adsorbent material and axial thermally conductive filaments in direct contact with the adsorbent material. The method provides for transferring heat from the heat of adsorption in a countercurrent direction along at least a portion of the filaments during adsorption and transferring heat in either axial direction along the filaments to provide at least a portion of the heat of desorption during a desorption step. A carbon dioxide TSA separation process to separate carbon dioxide from flue gas also includes steps transferring heat from adsorption or for desorption along axial thermally conductive filaments.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 20, 2013
    Applicant: INVENTYS THERMAL TECHNOLOGIES INC.
    Inventors: Andre Boulet, Soheil Khiavi
  • Publication number: 20130081413
    Abstract: A method when extracting solvent and heat from a gas (B) to absorb solvent in a solution (D) containing solvent and one or several absorbents with strong affinity to the solvent, wherein the absorption takes place so that gas (B) and solution (D) is contacted in parallel flow mainly on one side of a heat exchanger, where the heat liberated at the absorption simultaneously is transferred indirectly or regeneratively to a cooling medium (F, G), which meets the absorption media in counter flow.
    Type: Application
    Filed: June 16, 2011
    Publication date: April 4, 2013
    Inventor: Tomas Åbyhammar
  • Publication number: 20130074693
    Abstract: A method for treating a process gas with a liquid comprises contacting a process gas with a hygroscopic working fluid in order to remove a constituent from the process gas. A system for treating a process gas with a liquid comprises a hygroscopic working fluid comprising a component adapted to absorb or react with a constituent of a process gas, and a liquid-gas contactor for contacting the working fluid and the process gas, wherein the constituent is removed from the process gas within the liquid-gas contactor.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: ENERGY & ENVIRONMENTAL RESEARCH CENTER FOUNDATION
    Inventors: Christopher L. Martin, Ye Zhuang
  • Publication number: 20130036909
    Abstract: A concentrator photovoltaic apparatus for controlling internal condensation includes a light receiving module including one or more photovoltaic cells in a waterproof enclosure, at least one primary lens sealed to the waterproof enclosure for concentrating sunlight, a waterproof breather membrane regulating the pressure of the air located inside the enclosure, and a regenerative desiccant in a thermally decoupled dryer tube or thermally coupled to an internal surface of the enclosure. Smaller breather membrane vents and/or positive time delays between the temperature of the desiccant and the temperature of the enclosure may prolong an adsorption phase of the desiccant, which may substantially contribute to efficiency, reliability, and autonomous control of condensation.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Inventors: Etienne Menard, Scott Burroughs
  • Publication number: 20120240765
    Abstract: A humidity sensitive composition which consists: a) of 5 to 50% by weight of a water and/or water vapour absorbing agent; b) 10 to 60% of a water vapour absorbing and releasing agent selected from perlite or vermiculite; c) 5 to 50% of an absorbent for small molecules. Is used as the basis for controlling container rain, sequestering carbon dioxide, and removing ozone and hydrogen sulfide from the air.
    Type: Application
    Filed: December 13, 2010
    Publication date: September 27, 2012
    Applicant: VM3 INTERNATIONAL PTY LTD
    Inventor: David John Tomlinson
  • Publication number: 20120227582
    Abstract: The present invention relates to a device, a method and the use of the same for production or purifying of water. Present invention is based on the use of hygroscopic materials and heating thereof.
    Type: Application
    Filed: November 19, 2010
    Publication date: September 13, 2012
    Applicant: AIRWATERGREEN AB
    Inventors: Jonas Wamstad, Fredrik Edstrom
  • Patent number: 8246705
    Abstract: A grease containment apparatus to remove grease and other contaminants from hot air exiting a kitchen area through a vent system which includes a vertical separator.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: August 21, 2012
    Inventors: Charles E. Bain, David D. Williams
  • Publication number: 20120204718
    Abstract: A method and apparatus for removing water vapor from the flue gas stream of an industrial process, including flue gas from a power station. The apparatus including a moisture transfer device, a cooling device, and an optional enthalpy exchange device. The method including running high volumes the flue gas through the moisture transfer device, the cooling device, and the enthalpy exchange device to remove substantially all of the water vapor from the flue gas stream. Also, a method and apparatus for capturing CO2 from flue gas with very low water vapor content. The apparatus including one or more towers packed with a solid sorbent, or including a liquid sorbent. The CO2 from the water vapor free CO2 stream is sorbed by the sorbent and captured for later use.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 16, 2012
    Inventor: Paul DINNAGE
  • Publication number: 20120204717
    Abstract: A method and apparatus for removing water vapor from the flue gas stream of an industrial process, including flue gas from a power station. The apparatus including a moisture transfer device, a cooling device, and an optional enthalpy exchange device. The method including running high volumes the flue gas through the moisture transfer device, the cooling device, and the enthalpy exchange device to remove substantially all of the water vapor from the flue gas stream. Also, a method and apparatus for capturing CO2 from flue gas with very low water vapor content. The apparatus including one or more towers packed with a solid sorbent, or including a liquid sorbent. The CO2 from the water vapor free CO2 stream is sorbed by the sorbent and captured for later use.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 16, 2012
    Applicant: MUNTERS CORPORATION
    Inventor: Paul DINNAGE
  • Publication number: 20120103192
    Abstract: An aircraft fuel tank ventilation system includes a dehumidifying device disposed in flow communication between a vent open to the atmosphere and a fuel tank. A method of dehumidifying air introduced into an aircraft fuel tank via a ventilation system includes directing atmospheric air through a dehumidifying device disposed in flow communication between a vent of the ventilation system and the fuel tank, which removes water vapour from the air flowing from the vent towards the fuel tank. A method of regenerating a desiccant medium used to dehumidify air introduced into an aircraft fuel tank via a ventilation system includes directing air through the desiccant medium so as to dry the desiccant medium.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 3, 2012
    Applicant: AIRBUS OPERATIONS LIMITED
    Inventors: Joseph K-W Lam, David Parmenter, Simon Masters
  • Publication number: 20120097029
    Abstract: A water recovery system includes a sorbing bed, a desorbing bed, a heat pump and a controller. The sorbing bed receives a first fluid stream and absorbs and/or adsorbs water from the first fluid stream. The desorbing bed is aligned with and thermally connected to the sorbing bed, and receives a second fluid stream and desorbs water to the second fluid stream. The heat pump is positioned between the sorbing bed and the desorbing bed and transfers heat from the sorbing bed to the desorbing bed. The controller distributes power to the heat pump to maintain an area near the outlet of the desorbing bed at a temperature greater than an area of the sorbing bed aligned with the area near the outlet of the desorbing bed. A method for recovering water from a fluid stream includes directing fluid streams through the described water recovery system.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Edward W. Hodgson, William G. Papale, JR.
  • Patent number: 8118911
    Abstract: An air drying arrangement for a commercial vehicle is provided having two or more desiccant canisters arranged in parallel on a single air dryer body. The arrangement may include a coupling device that attaches to the body and allows the two or more desiccant containing canisters to mount to the device. The arrangement may be configured to balance the flow of air to each of the desiccant containing canisters when drying air and/or when regenerating the desiccant.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 21, 2012
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Fred W. Hoffman, Leonard A. Quinn
  • Publication number: 20110277496
    Abstract: An improved method is provided for removing contaminants from a hydrocarbon stream, such as a stream of raw natural gas. The contaminated hydrocarbon stream is passed through a first adsorbent bed containing molecular sieves to adsorb contaminants on the molecular sieves, thereby removing at least some of the contaminants from the hydrocarbon stream. The contaminated hydrocarbon stream may optionally be passed through a second adsorbent bed containing a desiccant material other than molecular sieves. The molecular sieves are regenerated using a wet regeneration process in which both the water content and temperature of the regeneration fluid stream are staged.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 17, 2011
    Inventors: P. Scott Northrop, Francis S. Wu, Margaret Wu, Narasimhan Sundaram
  • Publication number: 20110252966
    Abstract: An air drying arrangement for a commercial vehicle is provided having two or more desiccant canisters arranged in parallel on a single air dryer body. The arrangement may include a coupling device that attaches to the body and allows the two or more desiccant containing canisters to mount to the device. The arrangement may be configured to balance the flow of air to each of the desiccant containing canisters when drying air and/or when regenerating the desiccant.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 20, 2011
    Applicant: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC
    Inventors: Fred W. Hoffman, Leonard A. Quinn
  • Publication number: 20110247489
    Abstract: A natural gas dehydration system and method includes a contactor, a flash tank, and a still interconnected by a desiccant circulation system. A continuously fired reboiler is coupled to the still and the flash tank to bum the flash gas from the flash tank and heat the desiccant.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Inventor: Joseph A. Witherspoon
  • Publication number: 20110232485
    Abstract: A composite desiccant material is formed by a porous, absorbent substrate of PVA foam or non-woven fibrous sheet is soaked in a solution of a hygroscopic desiccant such as CaCl. The desiccant is held in pores or fibrous entraining areas sized ranging from 50 microns to 1000 microns. Thin sheets are arranged in a stack in a multi-chamber system, while in an absorption state, uses this stack in a main chamber to absorb H2O from atmospheric gas flowing through that chamber. In a regeneration state atmospheric flow is stopped and low-grade energy releases the H2O from the desiccant into that chamber. Fans circulate moist air through the main chamber and into an adjacent chamber for H2O transfer through or past a partially permeable barrier into a cooling/condensing area. Both H2O and dry gas may be produced.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 29, 2011
    Inventor: Joseph Ellsworth
  • Publication number: 20110226128
    Abstract: In a method for removing moisture from an optical system at high altitude, the improvement comprises using the difference in flow resistance between the desiccant path and the optical cavity path to enable airflow through the desiccant unit and not through the optical path.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 22, 2011
    Inventors: Kazimierz T. Grzeslak, Jason Stockwell
  • Publication number: 20110120306
    Abstract: An article comprising a substrate; and a carboxylic acid alkali salt disposed on the substrate, wherein the carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5. The article may be useful, for example, in the removal of an acid gas component from a gas.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventor: Dayue David Jiang
  • Publication number: 20110120305
    Abstract: An article comprising a substrate; and an amino acid salt disposed on the substrate. The article may be useful, for example, in the removal of an acid gas component from a gas.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventor: Dayue David Jiang
  • Publication number: 20110023581
    Abstract: Embodiments of a front-end pre-concentrator module, a back-end pre-concentrator module and a gas analysis subsystem are disclosed, as well as gas analysis systems using combinations of the front-end pre-concentrator module, the back-end pre-concentrator module and the gas analysis subsystem. Embodiments of disposable and re-usable moisture removal filters are disclosed for use alone or in combination with a gas analysis system.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 3, 2011
    Applicant: TRICORNTECH CORPORATION
    Inventors: Tsung-Kuan A. Chou, Li-Peng Wang, Chia-Jung Lu, Shih-Chi Chu
  • Publication number: 20110011260
    Abstract: The present invention relates to dehumidification equipment and more specifically to a microwave reactivation system and new method of reactivation/regeneration of the desiccant dehumidification system and desiccant rotor for use in conventional desiccants as well as the explosion-proof dehumidification system used in hazardous locations and or applications. The dehumidification system incorporates a desiccant rotor assembly which is located in the cabinet and the rotor rotatively mounted inside this cabinet. The desiccant rotor core is impregnated with a desiccant type material. Mechanical means are provided for rotating the desiccant rotor within the cabinet. The Microwave System and method of reactivation is designed to provide an indirect, safe and energy efficient source of heat and temperature rise required in the reactivation section of the desiccant unit for the release into atmosphere of the water vapors which are accumulated in the desiccant rotor.
    Type: Application
    Filed: June 2, 2010
    Publication date: January 20, 2011
    Inventor: Mario Caggiano
  • Patent number: 7837766
    Abstract: Systems and methods for producing an ozone destructor are disclosed herein. Generally, these systems and methods include an ozone destructor that has a housing defining an air passage duct. In some cases, this air passage duct includes a first chamber and a second chamber that are arranged so that air is able to flow into the first chamber, through the second chamber, and out of the destructor. In some cases, an air drying mechanism is disposed in the first and/or the second chamber. Additionally, in some cases, the ozone destructor further includes multiple mechanisms that reduce ozone to oxygen. In light of these features, the ozone destructor is capable of incrementally drying and reducing air and ozone, respectively, as they pass through the first chamber and the second chamber.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: November 23, 2010
    Inventor: Thomas D. Gillette
  • Patent number: 7799120
    Abstract: A carbon dioxide storage system includes a container and a conduit attached to the container for introducing or removing a carbon dioxide-containing composition from the container. A carbon dioxide storage material is positioned within the container. The carbon dioxide-storage material includes a metal-organic framework, which has a sufficient surface area to store at least 10 carbon dioxide molecules per formula unit of the metal-organic framework at a temperature of about 25° C.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: September 21, 2010
    Assignee: The Regents of the University of Michigan
    Inventors: Omar M. Yaghi, Andrew Robert Millward
  • Patent number: 7748380
    Abstract: A combined air-supplying/air-purifying breathing system that includes a self-contained breathing apparatus, a facepiece for delivering breathable air from the self-contained breathing apparatus to a user, and a powered air-purifying respirator having at least one filter and a blower and having an output connected by a hose assembly to the facepiece. A control interface operationally connects the self-contained breathing apparatus to the powered air-purifying respirator. The self-contained breathing apparatus includes a pressure vessel, a cylinder valve assembly and a pressure reducer, all carried by a back frame, and the powered air-purifying respirator is adapted to be mounted on, and carried by, the back frame, by coupling the back frame and the respirator together at respective attachment points.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: July 6, 2010
    Assignee: STI Licensing Corporation
    Inventors: Jerry Allen Phifer, William Eugene Parson, Judge W. Morgan, III, Robert Daniel Williams
  • Patent number: 7708815
    Abstract: Embodiments of the invention relate to a composite hydrogen storage material comprising active material particles and a binder, wherein the binder immobilizes the active material particles sufficient to maintain relative spatial relationships between the active material particles.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: May 4, 2010
    Assignee: Angstrom Power Incorporated
    Inventor: Joerg Zimmermann
  • Patent number: 7658190
    Abstract: A powered air-purifying respirator that includes an enclosure, defining a single contiguous enclosed interior, an inlet duct, including an inlet and a distribution portion, that guides ambient air to the interior of the enclosure, a plurality of filter canisters disposed within the interior of the enclosure, and a blower that forces air through the at least one inlet, into the interior of the enclosure and through the plurality of filter canisters to produce filtered air suitable for breathing. A valve controls the flow of ambient air through the inlet duct. A fluid dam, disposed in an air path between the inlet and the filter canisters prevents liquids from reaching the filter canisters. The enclosure is reinforced and is adapted to provide protection for the filter canister from flame and heat while the filter canister is in use. A recirculation valve recycles previously-filtered air back into the enclosure.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: February 9, 2010
    Assignee: STI Licensing Corp.
    Inventors: Jerry Allen Phifer, William Eugene Parson, Judge W. Morgan, III, Robert Daniel Williams
  • Patent number: 7647927
    Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: January 19, 2010
    Assignee: Wilcox Industries Corp.
    Inventors: James W. Teetzel, Gary M. Lemire, Daniel A. Desrosiers, Mark A. Hansen
  • Publication number: 20090188386
    Abstract: Methods of controlling relative humidity in an enclosure that include preparing an aqueous solution, the aqueous solution including a hydratable salt, the hydratable salt including a divalent cation; preparing a second composition, the second composition including the aqueous solution; and polyacrylamide, a copolymer of polyacrylic acid and polyacrylamide, or both; and placing the second composition in the enclosure, wherein the second composition absorbs water from the atmosphere of the enclosure. Devices and systems including desiccants are also disclosed.
    Type: Application
    Filed: April 2, 2009
    Publication date: July 30, 2009
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Paul Allison Beatty, James Hart Smith