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WO1997038272A8 - Portable/potable water recovery and dispensing apparatus - Google Patents

Portable/potable water recovery and dispensing apparatus

Info

Publication number
WO1997038272A8
WO1997038272A8 PCT/US1997/005665 US9705665W WO9738272A8 WO 1997038272 A8 WO1997038272 A8 WO 1997038272A8 US 9705665 W US9705665 W US 9705665W WO 9738272 A8 WO9738272 A8 WO 9738272A8
Authority
WO
WIPO (PCT)
Prior art keywords
water
generator
dew
air
portable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1997/005665
Other languages
French (fr)
Other versions
WO1997038272A1 (en
Inventor
Terry L Lebleu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Worldwide Water Inc
Original Assignee
Worldwide Water Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/629,305 external-priority patent/US5669221A/en
Priority to DE69734575T priority Critical patent/DE69734575T2/en
Priority to IL12646197A priority patent/IL126461A/en
Priority to BR9708616A priority patent/BR9708616A/en
Priority to CA002251095A priority patent/CA2251095C/en
Priority to MXPA98008295A priority patent/MXPA98008295A/en
Application filed by Worldwide Water Inc filed Critical Worldwide Water Inc
Priority to AU28003/97A priority patent/AU2800397A/en
Priority to EP97922289A priority patent/EP0891523B1/en
Publication of WO1997038272A1 publication Critical patent/WO1997038272A1/en
Anticipated expiration legal-status Critical
Publication of WO1997038272A8 publication Critical patent/WO1997038272A8/en
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/28—Methods or installations for obtaining or collecting drinking water or tap water from humid air
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/152—Water filtration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/211—Solar-powered water purification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Clinical Laboratory Science (AREA)
  • Public Health (AREA)
  • Physical Water Treatments (AREA)

Abstract

A portable, potable water generator for producing high-purity liquid water by condensation of dew from ambient air is described. The generator employs filtration subsystems (38) to remove particulates and aerosols from the incoming air. An enclosed heat absorber (22) cools the filtered air below its dew point and collects (25) droplets of condensate into a closed system (26). The collected liquid dew is further continually treated in a bacteriostat loop (29, 31) to destroy adventitious living organisms and to filter out undesirable and dangerous contaminants. All the subsystems are failsafe-interlocked to disable the generator immediately and prevent delivery of water if any one of them stops functioning within predetermined safe limits. Hybrid embodiments of the water generator attached to or integrated with refrigeration-type appliances such as water coolers, refrigerators, freezers, icemakers and air-conditioners are illustrated.
PCT/US1997/005665 1996-04-08 1997-04-05 Portable/potable water recovery and dispensing apparatus Ceased WO1997038272A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP97922289A EP0891523B1 (en) 1996-04-08 1997-04-05 Portable, potable water recovery and dispensing apparatus
IL12646197A IL126461A (en) 1996-04-08 1997-04-05 Portable, potable-water recovery system and apparatus
BR9708616A BR9708616A (en) 1996-04-08 1997-04-05 Recovery and distribution system for drinking water and hybrid electric utensil
CA002251095A CA2251095C (en) 1996-04-08 1997-04-05 Portable/potable water recovery and dispensing apparatus
MXPA98008295A MXPA98008295A (en) 1996-04-08 1997-04-05 Portable/potable water recovery and dispensing apparatus.
DE69734575T DE69734575T2 (en) 1996-04-08 1997-04-05 PORTABLE DEVICE FOR DRINKING WATER REGENERATION AND DELIVERY
AU28003/97A AU2800397A (en) 1996-04-08 1997-04-05 Portable/potable water recovery and dispensing apparatus

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/629,305 US5669221A (en) 1996-04-08 1996-04-08 Portable, potable water recovery and dispensing apparatus
US08/629,305 1996-04-08
US3575397P 1997-01-06 1997-01-06
US08/802,489 US5845504A (en) 1996-04-08 1997-02-20 Portable/potable water recovery and dispensing apparatus
US08/802,489 1997-02-20

Publications (2)

Publication Number Publication Date
WO1997038272A1 WO1997038272A1 (en) 1997-10-16
WO1997038272A8 true WO1997038272A8 (en) 2003-02-20

Family

ID=56289751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/005665 Ceased WO1997038272A1 (en) 1996-04-08 1997-04-05 Portable/potable water recovery and dispensing apparatus

Country Status (5)

Country Link
BR (1) BR9708616A (en)
CA (1) CA2251095C (en)
IL (1) IL126461A (en)
MX (1) MXPA98008295A (en)
WO (1) WO1997038272A1 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL138045A (en) * 1998-02-27 2004-06-20 Water Master Technologies Ltd Water making apparatus
US6519956B2 (en) * 2001-05-16 2003-02-18 Alan W. Bagley Device and method for operating a refrigeration cycle without evaporator icing
US7641790B2 (en) 2002-09-26 2010-01-05 Hydro-Photon, Inc. UV LED based water purification module for intermittently operable flow-through hydration systems
US8828222B2 (en) 2002-09-26 2014-09-09 Hydro-Photon, Inc. Photocatalytic intermittent flow-through purification module
CN100348935C (en) * 2003-03-21 2007-11-14 乐金电子(天津)电器有限公司 Refrigerator
KR20070047366A (en) 2004-09-03 2007-05-04 에버레스트 인터내셔널, 엘티디 Method and apparatus for generating water
US7886557B2 (en) 2004-09-03 2011-02-15 Everest Water, Ltd. Water producing method and apparatus with additive control system
US8872130B1 (en) 2012-03-19 2014-10-28 Meridian Design, Inc. UVC water purifier system and method
WO2012162545A2 (en) * 2011-05-24 2012-11-29 Awg International, Inc. Atmospheric water generator system
CN103422537A (en) * 2012-05-18 2013-12-04 湖北江南专用特种汽车有限公司 Multifunctional emergency drinking water generating vehicle
US8975596B1 (en) 2012-07-20 2015-03-10 Meridian Design, Inc. Water purifying drink containers
US9533894B2 (en) 2013-10-14 2017-01-03 Haier Us Appliance Solutions, Inc. Water filtering system with temperature sensing
US9274020B2 (en) 2013-10-14 2016-03-01 General Electric Company System and a method for detecting liquid water
US9366388B2 (en) 2013-10-14 2016-06-14 General Electric Company Refrigerator appliance and a method for monitoring a water filter assembly within the same
US10173905B2 (en) 2014-04-10 2019-01-08 Haier Us Appliance Solutions, Inc. System for detecting a liquid and a water filter assembly
US20150290674A1 (en) 2014-04-10 2015-10-15 General Electric Company Method for treating foam
US10173155B2 (en) 2014-04-10 2019-01-08 Haier Us Appliance Solutions, Inc. Water filter assembly and a system for detecting liquid
US10173904B2 (en) 2014-04-10 2019-01-08 Haier Us Appliance Solutions, Inc. System for detecting a liquid and a water filter assembly
US10502477B2 (en) 2014-07-28 2019-12-10 Haier Us Appliance Solutions, Inc. Refrigerator appliance
US10018407B2 (en) 2015-08-25 2018-07-10 Haier Us Appliance Solutions, Inc. Filter cartridge
US10150067B2 (en) 2015-09-08 2018-12-11 Haier Us Appliance Solutions, Inc. Filter cartridge
US10391430B2 (en) 2015-09-21 2019-08-27 Haier Us Appliance Solutions, Inc. Filter assembly
US9750355B1 (en) * 2016-03-02 2017-09-05 Pepsico, Inc. Refrigerated merchandise display system
CN206109117U (en) * 2016-07-26 2017-04-19 吳達鎔 A primary filtration and storage system
US10571179B2 (en) 2017-01-26 2020-02-25 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a clear icemaker
US10605493B2 (en) 2017-01-26 2020-03-31 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a clear icemaker
US10274237B2 (en) 2017-01-31 2019-04-30 Haier Us Appliance Solutions, Inc. Ice maker for an appliance
US10040009B1 (en) 2017-06-27 2018-08-07 Haier Us Appliance Solutions, Inc. Filter cartridge
US10428713B2 (en) 2017-09-07 2019-10-01 Denso International America, Inc. Systems and methods for exhaust heat recovery and heat storage
CN114209210B (en) * 2021-12-09 2024-04-09 东莞诚高塑胶五金制品有限公司 Anti-dewing water dispenser

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675442A (en) 1971-02-12 1972-07-11 Rollin J Swanson Atmospheric water collector
US4204956A (en) 1978-10-02 1980-05-27 Flatow Robert E Water purification system
US5227053A (en) 1990-11-30 1993-07-13 Conventure Corporation Water purification system
US5149446A (en) 1991-01-30 1992-09-22 Reidy James J Potable water generator
US5106512A (en) 1991-01-30 1992-04-21 Reidy James J Portable air-water generator
US5259203A (en) 1992-05-14 1993-11-09 Engel Daniel R Apparatus and method for extracting potable water from atmosphere
US5301516A (en) 1993-02-11 1994-04-12 Forrest Poindexter Potable water collection apparatus
US5517829A (en) 1994-05-03 1996-05-21 Michael; Charles L. Apparatus for producing filtered drinking water
US5553459A (en) 1994-07-26 1996-09-10 The Watermarker Corp. Water recovery device for reclaiming and refiltering atmospheric water

Also Published As

Publication number Publication date
CA2251095C (en) 2003-05-20
BR9708616A (en) 1999-08-03
IL126461A (en) 2002-08-14
CA2251095A1 (en) 1997-10-16
MXPA98008295A (en) 2003-03-21
IL126461A0 (en) 1999-08-17
WO1997038272A1 (en) 1997-10-16

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