US Patent No: 7,615,157
Number of patents in Portfolio can not be more than 2000
Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes
Stats
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Nov 10, 2009
Issued date -
Feb 17, 2005
filing date -
11/059,403
serial no -
In Force
status
Importance
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Abstract
A process is described for withdrawing filtered permeate from a non-pressurized substrate in a reservoir through an assembly. The assembly has a plurality of hollow fiber filtering membranes disposed generally vertically between two solid bodies, an enclosure sealed to the upper solid body to define a cavity, a permeate port in communication with the cavity and the lumen of each membrane in fluid communication with the port via the cavity. A suction is applied to lumens of the membranes via the permeate port to withdraw permeate. A gas is directed to provide bubbles which contact the membranes. Feed water is added so that the membranes are immersed while applying the suction.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,639,373 Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate | 128 | 1995 | |
| 5,783,083 Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces | 119 | 1996 | |
| 6,042,677 Potted header for hollow fiber membranes and method for making it | 70 | 1999 | |
| RE37549 Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate | 63 | 1999 | |
| 6,193,890 System for maintaining a clean skein of hollow fibers while filtering suspended solids | 83 | 1999 | |
| 6,319,411 Method of maintaining clean vertical skeins of hollow fiber membranes and system therefor | 44 | 1999 | |
| 6,303,035 Immersed membrane filtration process | 45 | 1999 | |
| 6,325,928 Immersed membrane element and module | 60 | 2000 | |
| 6,294,039 Potted header for hollow fiber membranes | 54 | 2000 | |
| 6,620,319 Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes | 50 | 2001 | |
| 6,706,189 Cyclic aeration system for submerged membrane modules | 49 | 2003 | |
| 7,087,173 Inverted cavity aerator for membrane module | 18 | 2004 | |
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| 5,104,535 Frameless array of hollow fiber membranes and module containing a stack of arrays | 53 | 1990 | |
| 5,182,019 Cartridge of hybrid frameless arrays of hollow fiber membranes and module containing an assembly of cartridges | 56 | 1992 | |
| 5,248,424 Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate | 139 | 1992 | |
| 5,366,625 Cartridge of hybrid unitary wafers of hollow fiber membranes and module containing a stack of post-potted cartridges | 29 | 1992 | |
| 5,403,479 In situ cleaning system for fouled membranes | 84 | 1993 | |
| 5,910,250 Baffle for conversion of fine bubbles to coarse while filtering with a vertical skein of hollow fibers | 87 | 1997 | |
| 5,944,997 System for maintaining a clean skein of hollow fibers while filtering suspended solids | 103 | 1998 | |
| 6,045,698 Method for cleaning a filtration installation of the type with immersed membranes | 61 | 1998 | |
| 6,214,231 System for operation of multiple membrane filtration assemblies | 60 | 1999 | |
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| 4,886,601 Column filter using bundles of long fibers | 49 | 1989 | |
| 4,915,833 Column filter using bundles of long fibers | 11 | 1989 | |
| 5,209,852 Process for scrubbing porous hollow fiber membranes in hollow fiber membrane module | 79 | 1991 | |
| 5,151,191 Filtration process using hollow fiber membrane module | 61 | 1991 | |
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| 5,643,455 Concentration of solids in a suspension using hollow fibre membranes | 90 | 1995 | |
| 6,156,200 Gas-scrubbed hollow fiber membrane module | 87 | 1998 | |
| 6,555,005 Scouring method | 61 | 1999 | |
| 6,969,465 Scouring method | 31 | 2002 | |
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| 5,192,456 Apparatus for treating activated sludge and method of cleaning it | 96 | 1992 | |
| 5,451,317 Solid-liquid separator | 48 | 1994 | |
| 5,647,988 Method of back-washing submerged-type ceramic membrane separation apparatus | 60 | 1994 | |
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| 4,605,500 Hollow-fiber filter module | 29 | 1985 | |
| 5,480,553 Hollow fiber membrane module | 85 | 1993 | |
| 6,214,226 Hollow fiber membrane module, hollow fiber membrane module unit which utilizes the module, and purification tank with the module unit installed therein | 13 | 1999 | |
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| 4,775,471 Hollow fiber filter device | 50 | 1986 | |
| 4,876,006 Hollow fiber filter device | 100 | 1988 | |
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| 4,668,401 Hollow-fiber filter module and filtration method using the same | 19 | 1986 | |
| 6,325,938 Method of cleaning membrane assembly with detergent | 21 | 2000 | |
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| 6,284,135 Membrane filter apparatus with gas discharge cleaning means | 55 | 1998 | |
| 6,402,955 Method for operating a membrane filter having a gas discharge cleaning means | 42 | 2001 | |
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| 4,707,268 Hollow fiber potted microfilter | 18 | 1986 | |
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| 5,125,543 Squeeze type bottle including anti-syphon device | 16 | 1991 | |
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| 7,031,853 Insulation verification system, insulation verification method, and storage medium | 6 | 2004 | |
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| 5,035,799 Filter assembly | 18 | 1989 | |
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| 5,063,632 Sootblower with condensate separator | 23 | 1990 | |
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| 4,414,113 Liquid purification using reverse osmosis hollow fibers | 63 | 1982 | |
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| 5,015,892 Asynchronous delay circuit | 10 | 1990 | |
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| 6,683,823 Method for reproducing information on a recording medium | 11 | 2002 | |
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| 4,540,490 Apparatus for filtration of a suspension | 70 | 1983 | |
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| 4,647,377 Filter apparatus | 71 | 1984 | |
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| 4,756,875 Apparatus for filtering water containing radioactive substances in nuclear power plants | 55 | 1986 | |
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| 5,584,997 Separation module and bundle unit of hollow thread-type porous membrane elements and methods of producing same | 17 | 1994 | |
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| 5,141,031 Woven hollow fiber double weft tape with knitted selvedge | 24 | 1991 | |
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| 5,202,023 Flexible hollow fiber fluid separation module | 31 | 1992 | |
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| 6,280,626 Membrane separator assembly and method of cleaning the assembly utilizing gas diffuser underneath the assembly | 59 | 1999 | |
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| 7,024,264 Designing method of a glass-plate-aimed bending mold making use of a 3-dimensional CAD application for solid models | 11 | 2002 | |
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| 5,484,528 Filtration equipment for hollow fiber module | 41 | 1994 | |
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| 5,607,593 Installation for making water potable with submerged filtering membranes | 104 | 1994 | |
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| 6,246,264 Circuit for generating output signals as a function of input signals | 7 | 1999 | |
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| 7,024,267 Automobile gauge faces made of stainless steel and other metals | 5 | 2003 | |
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| 5,932,099 Installation for biological water treatment for the production of drinkable water | 36 | 1997 | |
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| 5,123,540 Folding lunch box | 11 | 1990 | |
| 7,178,320 Horse cover | 6 | 2004 | |
| 7,178,321 Slip-on animal hoof boot assembly | 15 | 2004 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 10, 2013 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 10, 2017 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 10, 2021 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |