CA2634660A1 - Point-of-use water treatment system - Google Patents

Point-of-use water treatment system Download PDF

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Publication number
CA2634660A1
CA2634660A1 CA002634660A CA2634660A CA2634660A1 CA 2634660 A1 CA2634660 A1 CA 2634660A1 CA 002634660 A CA002634660 A CA 002634660A CA 2634660 A CA2634660 A CA 2634660A CA 2634660 A1 CA2634660 A1 CA 2634660A1
Authority
CA
Canada
Prior art keywords
light
bulb
face
lamp assembly
assembly
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.)
Granted
Application number
CA002634660A
Other languages
French (fr)
Other versions
CA2634660C (en
Inventor
Roy W. Kuennen
Eric K. Bartkus
David W. Baarman
Kenneth E. Conrad
Terry L. Lautzenheiser
Scott A. Mollema
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.)
Access Business Group International LLC
Original Assignee
Roy W. Kuennen
Eric K. Bartkus
David W. Baarman
Kenneth E. Conrad
Terry L. Lautzenheiser
Scott A. Mollema
Access Business Group International Llc
Snyder, Gregory, P.
Amway Corporation
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
Application filed by Roy W. Kuennen, Eric K. Bartkus, David W. Baarman, Kenneth E. Conrad, Terry L. Lautzenheiser, Scott A. Mollema, Access Business Group International Llc, Snyder, Gregory, P., Amway Corporation filed Critical Roy W. Kuennen
Publication of CA2634660A1 publication Critical patent/CA2634660A1/en
Application granted granted Critical
Publication of CA2634660C publication Critical patent/CA2634660C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/12Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08Radiation
    • A61L2/10Ultra-violet radiation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325Irradiation devices or lamp constructions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • C02F9/20Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/36Controlling
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20Responsive to malfunctions or to light source life; for protection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/32Details relating to UV-irradiation devices
    • C02F2201/322Lamp arrangement
    • C02F2201/3228Units having reflectors, e.g. coatings, baffles, plates, mirrors
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/32Details relating to UV-irradiation devices
    • C02F2201/326Lamp control systems
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0003Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being doped with fluorescent agents

Abstract

The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444). Maintaining the condensed mercury between filaments (444) serves to reduce the time needed for lamp assembly (24) to produce light emissions of a predetermined intensity upon subsequent energization as compared to allowing the mercury to condense outside the arc path. A reflector assembly (402) may be used in lamp assembly (24) to focus radiation upon conduits (80) carrying water therethrough and away from returning to a bulb assembly (82) from which the radiation was originally emitted. An outer enclosure or housing (400) surrounds the bulb and reflector assemblies (82, 402) such that lamp assembly (24) becomes a generally closed pressure vessel. Also, a light pipe (250) impregnated with a florescent dye may be used to convert UV light into visible light for ease of monitoring the light output intensity of lamp assembly (24). Light pipe (250) also serves as a filter to primarily emit light of a particular wavelength (green) while significantly inhibiting light transmission through light pipe (250) of other wavelengths.

Claims (6)

1. A method of detecting the intensity of UV light produced by a bulb assembly, the method comprising:

providing a bulb assembly having first and second ends and an intermediate portion extending therebetween, the first and second ends having respective filaments therein;
providing a light pipe having a flourescent dye therein, the light pipe including a bulb face, a filament face and an emitting face, the light pipe being configured to direct light incident upon the bulb face toward the emitting face;

orientating the bulb face to primarily receive light from the intermediate portion of the bulb assembly;

exciting the bulb assembly to produce UV light and visible light;
directing UV light from the intermediate portion of the bulb assembly to strike the bulb face thereby causing the light pipe to fluoresce and visible light to be emitted from the emitting face of the light pipe while light from the at least one of the first and second filaments strikes the filament face; and detecting the relative intensity of the visible light emitted from the emitting face of the light pipe.
2. The method of claim 1 wherein:

at least one of the bulb face and the emitting face are polished to enhance light transmissivity.
3. The method of claim 2 wherein:
the fluorescent dye is green.
4. The method of claim 3 wherein:

the intensity of the UV light output by the bulb assembly is directly proportional to the intensity of the light emitted by the emitting face.
5. The method of claim 4 wherein:
the bulb face is focused toward the intermediate portion of the bulb assembly.
6. The method of claim 4 wherein:

the filament face is generally curved to mate about a cylindrical bulb.
CA2634660A 1999-06-21 2000-06-14 Point-of-use water treatment system Expired - Fee Related CA2634660C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US14015999P 1999-06-21 1999-06-21
US14009099P 1999-06-21 1999-06-21
US60/140,090 1999-06-21
US60/140,159 1999-06-21
US09/596,416 US6451202B1 (en) 1999-06-21 2000-06-12 Point-of-use water treatment system
US09/596,416 2000-06-12
CA002374291A CA2374291C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002374291A Division CA2374291C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system

Publications (2)

Publication Number Publication Date
CA2634660A1 true CA2634660A1 (en) 2000-12-28
CA2634660C CA2634660C (en) 2011-01-25

Family

ID=27385443

Family Applications (3)

Application Number Title Priority Date Filing Date
CA2634660A Expired - Fee Related CA2634660C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system
CA002374291A Expired - Fee Related CA2374291C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system
CA2634106A Expired - Fee Related CA2634106C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA002374291A Expired - Fee Related CA2374291C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system
CA2634106A Expired - Fee Related CA2634106C (en) 1999-06-21 2000-06-14 Point-of-use water treatment system

Country Status (9)

Country Link
US (6) US6451202B1 (en)
JP (6) JP2003502153A (en)
KR (7) KR100449838B1 (en)
CN (6) CN1286735C (en)
AU (1) AU5489300A (en)
CA (3) CA2634660C (en)
HK (5) HK1063306A1 (en)
TW (1) TWI250131B (en)
WO (1) WO2000078681A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10183870B2 (en) 2015-05-22 2019-01-22 Access Business Group International Llc Point-of-use water treatment system

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