WO2000006499A9 - Point-of-use water treatment system - Google Patents
Point-of-use water treatment systemInfo
- Publication number
- WO2000006499A9 WO2000006499A9 PCT/US1999/017374 US9917374W WO0006499A9 WO 2000006499 A9 WO2000006499 A9 WO 2000006499A9 US 9917374 W US9917374 W US 9917374W WO 0006499 A9 WO0006499 A9 WO 0006499A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- assembly
- filter
- handle
- closure
- treatment system
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 210000005069 ears Anatomy 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000008901 benefit Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 210000002445 nipple Anatomy 0.000 description 13
- 238000013461 design Methods 0.000 description 9
- 230000013011 mating Effects 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 230000000717 retained effect Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007537 lampworking Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000002226 simultaneous effect Effects 0.000 description 1
- 229920013744 specialty plastic Polymers 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultra-violet radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- 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
- C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
-
- 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
- C02F1/325—Irradiation devices or lamp constructions
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/30—Filter housing constructions
- B01D2201/301—Details of removable closures, lids, caps, filter heads
-
- 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
- C02F1/008—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
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
-
- 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
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3223—Single elongated lamp located on the central axis of a turbular reactor
-
- 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
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/328—Having flow diverters (baffles)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/024—Turbulent
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/026—Spiral, helicoidal, radial
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug
-
- 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
Definitions
- a first problem many WTS units encounter is that filter closures can be difficult to remove from or install on WTS unit filter housings. This is particularly true of closures that rely upon threaded connections.
- the closures combine with the filter housings to form closed pressure vessels in which filters are stored.
- the diameters of filters are ideally as large as possible to increase the capacity and life expectancy of the filters.
- the diameter of filter housings must be large to accommodate the filters.
- Conventional threaded connections between the filter closures and filter housings, which are both usually made of plastic often "weld” together. This phenomenon is known as galling. The "welding" action is partially attributable to the long period of time between filter changes and also to the wet and warm environment in which WTS units operate.
- WTS units use bayonet mounted filter closures.
- a problem with this type of mount is that a filter closure must be accurately aligned with a housing to effect mounting of the filter closure to the filter housing. Also, even with a bayonet mount, there is still significant joint contact area between the filter closure and the filter housing. Again, significant force may be required to break the filter closure free from the filter housing after a long period of attachment.
- a second problem associated with WTS units having UV bulbs is the build up of heat within the WTS units.
- Adverse consequences related to elevated temperature include structural degradation of plastic components over time due to creep, discoloration of plastic components, and decreased reliability of electrical circuitry.
- the temperature of water stored overnight within a WTS unit can become uncomfortably warm to the touch when discharged from the WTS unit. Therefore, it is beneficial for a WTS unit to be designed to minimize its internal heat buildup.
- UV tank assembly When a UV lamp assembly is placed within the UV tank assembly, water flowing from the first baffle plate to the second baffle plate travels in a spiral path about a UV bulb providing the water generally uniform exposure to UV light.
- This particular UV tank assembly is relatively simple in construction and inexpensive to manufacture.
- An additional object is to provide a high thermal conductivity and high strength support plate to support major components of a WTS unit while enhancing heat dissipation from the WTS unit.
- FIGS. 16A-D are an exploded perspective view, a perspective view, a bottom plan view and an inverted sectional view taken along line 16D-16D of FIG. 16C of an electrical connector cap assembly;
- FIGS. 17A-D are an exploded perspective view, an elevational view, a top plan view and a sectional view of a lamp assembly taken along line 17D-17D of FIG. 17C;
- UV lamp assembly 280 is installed by removing bulb cover 18 and bayonet mounting UV lamp assembly 280 in cap assembly 290.
- Flanges 414 which carry terminals 436, are aligned with slots 376 and 378 in cap assembly 290.
- UV lamp assembly 280 is lowered into cap assembly 290 and tank assembly 300.
- Outer radial bead 434 of compression nut 406 comes into contact with seal surface 320 of tank assembly 300.
- Knob 420 is rotated 90° with flanges 414 bearing on the underside of rolled flanges 372 and 374 until striking retaining clip walls 380 and 384.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU54615/99A AU5461599A (en) | 1998-07-31 | 1999-07-30 | Point-of-use water treatment system |
US09/744,844 US6533930B1 (en) | 1998-07-31 | 1999-07-30 | Point-of-use water treatment system |
HK02100129.2A HK1038551B (en) | 1998-07-31 | 2002-01-08 | Point-of-use water treatment system [asian wtsii] |
US10/234,347 US6949185B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
US11/199,721 US7166216B2 (en) | 1998-07-31 | 2005-08-09 | Point-of-use water treatment system |
US11/549,183 US7691265B2 (en) | 1998-07-31 | 2006-10-13 | Point-of-use water treatment system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9491898P | 1998-07-31 | 1998-07-31 | |
US60/094,918 | 1998-07-31 | ||
US09/299,053 US6245229B1 (en) | 1998-07-31 | 1999-04-23 | Point-of-use water treatment system |
US09/299,053 | 1999-04-23 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/299,053 Continuation-In-Part US6245229B1 (en) | 1998-07-31 | 1999-04-23 | Point-of-use water treatment system |
Related Child Applications (8)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09744844 A-371-Of-International | 1999-07-30 | ||
US09/744,844 A-371-Of-International US6533930B1 (en) | 1998-07-31 | 1999-07-30 | Point-of-use water treatment system |
US10/234,347 Division US6949185B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
US10/234,826 Division US6811691B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
US10/234,820 Division US6716343B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
US10/234,623 Division US6773587B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
US10/234,348 Division US6716345B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
US10/234,765 Division US6726839B2 (en) | 1998-07-31 | 2002-09-04 | Point-of-use water treatment system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000006499A1 WO2000006499A1 (en) | 2000-02-10 |
WO2000006499A9 true WO2000006499A9 (en) | 2001-03-22 |
Family
ID=26789341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/017374 WO2000006499A1 (en) | 1998-07-31 | 1999-07-30 | Point-of-use water treatment system |
Country Status (7)
Country | Link |
---|---|
US (10) | US6245229B1 (en) |
CN (6) | CN1528676A (en) |
AU (1) | AU5461599A (en) |
HK (2) | HK1038551B (en) |
MY (7) | MY127395A (en) |
TW (1) | TW528734B (en) |
WO (1) | WO2000006499A1 (en) |
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