EP1719915B1 - In-line pumping unit - Google Patents
In-line pumping unit Download PDFInfo
- Publication number
- EP1719915B1 EP1719915B1 EP05009879A EP05009879A EP1719915B1 EP 1719915 B1 EP1719915 B1 EP 1719915B1 EP 05009879 A EP05009879 A EP 05009879A EP 05009879 A EP05009879 A EP 05009879A EP 1719915 B1 EP1719915 B1 EP 1719915B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pumping unit
- booster
- electric pump
- unit
- headpiece
- 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.)
- Active
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/16—Pumping installations or systems with storage reservoirs
Definitions
- the present invention relates to a pumping unit usable in liquid distribution systems, such as drinking water distribution systems, fire-fighting systems, garden or agricultural irrigation systems and vehicle wash systems.
- Electric pumps of the aforesaid type are known having an intake port and a delivery port positioned coaxially one opposite the other (i.e. "in line"), hence these pumps can be inserted directly into a straight pipe without using elbow connectors.
- Submerged electric pumps in which the motor does not require a cooling fan have also been known for some time. For this reason they are considerably less noisy than surface electric pumps, and do not require aeration or maintenance. However they have to be located in a sump or be kept immersed in the liquid to be pumped.
- booster i.e. a pipe piece acting as a container for the liquid in which the pump has to be immersed.
- the booster is vertical and needs a suitable bed.
- the liquid inlet is directed horizontally and lies in the lower part of the booster, while the outlet is provided at its upper end and is directed vertically. In this case it is evidently not possible to mount the booster in line with the relative submerged pump.
- DE2336909A discloses a pumping unit comprising a submerged pump contained in a vertical booster according to the preamble of claim 1.
- the object of the present invention is to provide a pumping unit which is decidedly less noisy than conventional surface pumps, can be located in non-aerated rooms, does not require a bed or support, can be mounted "in-line", and virtually requires no maintenance.
- the booster is disposed vertically, its lower end is conveniently shaped to be able to rest directly on any floor, hence eliminating the need for a specific bed or other support.
- the booster can evidently be disposed horizontally if this is preferable. Such an arrangement would require a support only at that end of the booster opposite that in which the inlet and outlet ports are present.
- the space between the two jackets can be filled with a sound-absorbent material.
- the invention provides a pumping unit which can be mounted directly "in-line”, is extremely silent and, if the booster is vertical, is of minimum plan dimensions.
- Known pumping units do not enable all these results to be obtained simultaneously.
- the pumping unit 10 comprises a conventional submerged electric pump 12 ( Figure 3 ) positioned coaxially within a booster 14. This latter has an overall parallelepiped shape with a support foot 16 which closes its lower end.
- the lateral wall of the booster comprises two jackets, of which the outer 18 is for example of anodized duralumin and the inner 20 is of stainless steel.
- the interspace between the two jackets 18 and 20 can be filled with a conventional sound-absorbent material, although good silencing levels are already obtained even if the interspace is empty (i.e. containing air).
- an anti-vibration ring 22 is fixed to the internal jacket 20 to retain the lower end of the electric pump 12, the rest of which is suspended by a connector 24 from a headpiece indicated overall by 26 and fixed by screws to a connector element 42, itself fixed by screws to the top of the booster 14.
- the headpiece 26 comprises, in one piece therewith, both the inlet port 30 and the outlet port 28, with the relative connection channels.
- the liquid entering from the inlet port 30 flows through the inlet channel portion 32 which deviates it downwards, so that the liquid flows between the outer lateral surface of the electric pump 12 and the inner lateral surface of the booster 14, reaching the lower end of the electric pump 12, to be then drawn through its intake port and leave through the said delivery connector 24, to flow through the outlet channel 34 which deviates the liquid in a horizontal direction until it leaves from the outlet port 28.
- the inlet port 30 and the outlet port 28 are aligned on the same axis 36 and opposite to each other, forming (considering that the electric pump is vertical) a T-shaped path of the liquid. This enables the pumping unit 10 to be directly inserted into a pipe without having to provide connection bends.
- the pumping unit 10 also comprises a control unit indicated overall by 44 located below the headpiece 26.
- the control unit 44 comprises an electronic card 46 and a display 48, all enclosed in a casing 38 provided with a removable cover 50.
- the casing 38 also contains an inverter 40 supported by the headpiece 26 and connected to a pressure transducer 41. This latter enables the delivery pressure to be measured and a signal to be fed to the inverter 40 to regulate the operation of the motor of the electric pump 12, this enabling electrical energy to be saved.
- the unit 10 also comprises a level sensor 52 preventing the electric pump 12 from operating under dry conditions. From Figures 1-4 and from the preceding description it will be apparent that, in addition to the aforespecified advantages, the pumping unit 10 is very compact, is of very small overall plan dimensions, and presents a ""clean" appearance, and in any event a decidedly more acceptable appearance than known pumping units with the same type of use.
- the pumping unit 10 can represent a modular unit with which the said pumping assembly shown in Figures 5 and 6 can be formed, and which in this specific example comprises five pumping units 10 and relative connectors 56 and 58, with the two headers 62 and 64.
- This arrangement makes it possible to provide a pilot pumping unit and arrange that, if this latter develops a fault, another pumping unit of the assembly automatically takes over as the pilot.
- the number of pumping units can obviously be different, according to specific requirements and design choices.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Insulated Conductors (AREA)
- Details Of Reciprocating Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Steroid Compounds (AREA)
Abstract
Description
- The present invention relates to a pumping unit usable in liquid distribution systems, such as drinking water distribution systems, fire-fighting systems, garden or agricultural irrigation systems and vehicle wash systems.
- For the aforestated uses electric pumps of so-called surface type are currently used. These electric pumps present various drawbacks. In particular, their electric motor is provided with a cooling fan which is particularly noisy and can disturb those in the vicinity of the room in which these pumps are located. Moreover, for evident reasons the said room has to be aerated, hence non-aerated rooms cannot be used. Again, these pumps require a bed on which they are fixed. A further drawback derives from the fact that the electric motor is provided with so-called pre-lubricated bearings which, however, after a determined time period have to be replaced.
- Electric pumps of the aforesaid type are known having an intake port and a delivery port positioned coaxially one opposite the other (i.e. "in line"), hence these pumps can be inserted directly into a straight pipe without using elbow connectors.
- Submerged electric pumps in which the motor does not require a cooling fan have also been known for some time. For this reason they are considerably less noisy than surface electric pumps, and do not require aeration or maintenance. However they have to be located in a sump or be kept immersed in the liquid to be pumped.
- It is also known to encase a submerged electric pump in a so-called booster, i.e. a pipe piece acting as a container for the liquid in which the pump has to be immersed. The booster is vertical and needs a suitable bed. The liquid inlet is directed horizontally and lies in the lower part of the booster, while the outlet is provided at its upper end and is directed vertically. In this case it is evidently not possible to mount the booster in line with the relative submerged pump.
- Arrangements are known in which the booster is disposed horizontally, supported by suitable saddles or support rings. The liquid inlet and outlet are provided mutually coaxial at the two ends of the booster, so that in this case in-line mounting is possible. There remains however the drawback of the need for suitable supports and the fact that the booster has a horizontal size equal to its length.
-
DE2336909A discloses a pumping unit comprising a submerged pump contained in a vertical booster according to the preamble of claim 1. - The object of the present invention is to provide a pumping unit which is decidedly less noisy than conventional surface pumps, can be located in non-aerated rooms, does not require a bed or support, can be mounted "in-line", and virtually requires no maintenance.
- This object is attained by the pumping unit according to claim 1.
- If the booster is disposed vertically, its lower end is conveniently shaped to be able to rest directly on any floor, hence eliminating the need for a specific bed or other support. However the booster can evidently be disposed horizontally if this is preferable. Such an arrangement would require a support only at that end of the booster opposite that in which the inlet and outlet ports are present.
- The space between the two jackets can be filled with a sound-absorbent material.
- From the aforegoing it is already apparent that the invention provides a pumping unit which can be mounted directly "in-line", is extremely silent and, if the booster is vertical, is of minimum plan dimensions. Known pumping units do not enable all these results to be obtained simultaneously.
- The invention will be more apparent from the ensuing description of one exemplifying embodiment thereof. In this description reference will be made to the accompanying drawings, in which:
-
Figure 1 is an elevation of a pumping unit of the present invention, shown in "in-line" installation; -
Figure 2 is a partly cut-away plan view from above showing the pumping unit alone; -
Figure 3 is a vertical section therethrough on the line 3-3 ofFigure 2 ; -
Figure 4 is a partial vertical section therethrough on the line 4-4 ofFigure 3 ; -
Figure 5 is a plan view of a pumping assembly formed from a determined number of modular pumping units identical to that of the preceding figs; -
Figure 6 is an elevation of the pumping assembly in the direction of thearrow 6 ofFigure 5 . - As can be seen from
Figures 1-4 , thepumping unit 10 comprises a conventional submerged electric pump 12 (Figure 3 ) positioned coaxially within abooster 14. This latter has an overall parallelepiped shape with asupport foot 16 which closes its lower end. - As can be seen from
Figure 1 , specific supports or a bed are not required for thepumping unit 10 as it is simply rested on afloor 54, it being maintained in position by thepipe 55 in which it is inserted "in-line". Even in the case of the pumping assembly ofFigures 5 and6 , it is sufficient simply to rest thevarious pumping units 10 directly on thefloor 54, theconnectors system headers 62 and 64 (provided with their supports 60) then being sufficient to maintain theindividual units 10 in position. - The lateral wall of the booster comprises two jackets, of which the outer 18 is for example of anodized duralumin and the inner 20 is of stainless steel. The interspace between the two
jackets Figure 3 it can be seen that ananti-vibration ring 22 is fixed to theinternal jacket 20 to retain the lower end of theelectric pump 12, the rest of which is suspended by aconnector 24 from a headpiece indicated overall by 26 and fixed by screws to aconnector element 42, itself fixed by screws to the top of thebooster 14. Theheadpiece 26 comprises, in one piece therewith, both theinlet port 30 and theoutlet port 28, with the relative connection channels. - With the
electric pump 12 in operation, the liquid entering from theinlet port 30 flows through theinlet channel portion 32 which deviates it downwards, so that the liquid flows between the outer lateral surface of theelectric pump 12 and the inner lateral surface of thebooster 14, reaching the lower end of theelectric pump 12, to be then drawn through its intake port and leave through the saiddelivery connector 24, to flow through theoutlet channel 34 which deviates the liquid in a horizontal direction until it leaves from theoutlet port 28. As can be seen, theinlet port 30 and theoutlet port 28 are aligned on thesame axis 36 and opposite to each other, forming (considering that the electric pump is vertical) a T-shaped path of the liquid. This enables thepumping unit 10 to be directly inserted into a pipe without having to provide connection bends. - In the specific example illustrated, the
pumping unit 10 also comprises a control unit indicated overall by 44 located below theheadpiece 26. Thecontrol unit 44 comprises anelectronic card 46 and adisplay 48, all enclosed in acasing 38 provided with aremovable cover 50. Thecasing 38 also contains aninverter 40 supported by theheadpiece 26 and connected to apressure transducer 41. This latter enables the delivery pressure to be measured and a signal to be fed to theinverter 40 to regulate the operation of the motor of theelectric pump 12, this enabling electrical energy to be saved. - The
unit 10 also comprises alevel sensor 52 preventing theelectric pump 12 from operating under dry conditions.
FromFigures 1-4 and from the preceding description it will be apparent that, in addition to the aforespecified advantages, thepumping unit 10 is very compact, is of very small overall plan dimensions, and presents a ""clean" appearance, and in any event a decidedly more acceptable appearance than known pumping units with the same type of use. - The
pumping unit 10 can represent a modular unit with which the said pumping assembly shown inFigures 5 and6 can be formed, and which in this specific example comprises fivepumping units 10 andrelative connectors headers
Claims (14)
- A pumping unit (10) usable in liquid distribution systems, comprising an electric pump (12) of submerged or submersible type inserted in a booster (14) provided with an inlet port (30) and an outlet port (28) for the liquid, both (30, 28) being located at that end of the booster (14) closer to the electric pump (12) delivery, and being mutually opposite and aligned (along 36), characterized in that the booster (14) comprises a double jacket, the two jackets (18, 20) being spaced apart.
- A pumping unit (10) as claimed in claim 1, wherein the booster (14) is disposed vertically and has its lower end (16) shaped to be able to rest directly on a floor (54).
- A pumping unit (10) as claimed in claim 1, wherein the interspace between the two jackets (18, 20) is filled with a sound-absorbent material.
- A pumping unit (10) as claimed in claim 3, wherein the outer jacket (18) is of aluminium.
- A pumping unit (10) as claimed in claim 3, wherein the inner jacket (20) is of stainless steel.
- A pumping unit (10) as claimed in claim 1, wherein the booster (14) is of overall parallelepiped shape.
- A pumping unit as claimed in claim 2, wherein an anti-vibration ring (22) is fixed to the inner jacket (20) to retain the lower end of the electric pump (12).
- A pumping unit (10) as claimed in claim 2, wherein the electric pump (12) is suspended from a headpiece (26) fixed to the top of the booster (14), in the headpiece (26) there being provided in one piece therewith both the inlet port (30) and the outlet port (28), with the relative connection channels (32, 34).
- A pumping unit (10) as claimed in claim 8, wherein a control unit (44) is provided.
- A pumping unit (10) as claimed in claims 8 and 9, wherein the control unit (44) is located above the headpiece (26).
- A pumping unit (10) as claimed in claim 9, wherein the control unit (44) comprises an electronic card (46) and a display unit (48).
- A pumping unit (10) as claimed in claim 9, wherein a pressure transducer (41) and an inverter (40) are provided, the pressure transducer (41) being arranged to measure the delivery pressure and to feed a signal to the inverter (40) to hence regulate the operation of the motor of the electric pump (12).
- A pumping unit (10) as claimed in claim 12, wherein the inverter is supported by the headpiece (26).
- A pumping unit (10) as claimed in claim 9, wherein a level sensor (52) is provided connected to the control unit (44) to prevent the electric pump (12) from operating under dry conditions.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05009879T ATE488698T1 (en) | 2005-05-06 | 2005-05-06 | INLINE PUMP |
ES05009879T ES2355628T3 (en) | 2005-05-06 | 2005-05-06 | PUMPING UNIT ONLINE. |
EP05009879A EP1719915B1 (en) | 2005-05-06 | 2005-05-06 | In-line pumping unit |
DE602005024769T DE602005024769D1 (en) | 2005-05-06 | 2005-05-06 | Inline Pump |
CNB2006101054803A CN100523521C (en) | 2005-05-06 | 2006-04-29 | In-line pumping unit |
TW095115861A TWI367991B (en) | 2005-05-06 | 2006-05-04 | In-line pumping unit |
RU2006115530/06A RU2403451C2 (en) | 2005-05-06 | 2006-05-05 | Pump unit to be mounted along line |
US11/418,252 US20060251531A1 (en) | 2005-05-06 | 2006-05-05 | In-line pumping unit |
JP2006129450A JP2006312939A (en) | 2005-05-06 | 2006-05-08 | In-line pump unit |
HK07104755.0A HK1098524A1 (en) | 2005-05-06 | 2007-05-04 | In-line pumping unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05009879A EP1719915B1 (en) | 2005-05-06 | 2005-05-06 | In-line pumping unit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1719915A1 EP1719915A1 (en) | 2006-11-08 |
EP1719915B1 true EP1719915B1 (en) | 2010-11-17 |
Family
ID=34936200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05009879A Active EP1719915B1 (en) | 2005-05-06 | 2005-05-06 | In-line pumping unit |
Country Status (10)
Country | Link |
---|---|
US (1) | US20060251531A1 (en) |
EP (1) | EP1719915B1 (en) |
JP (1) | JP2006312939A (en) |
CN (1) | CN100523521C (en) |
AT (1) | ATE488698T1 (en) |
DE (1) | DE602005024769D1 (en) |
ES (1) | ES2355628T3 (en) |
HK (1) | HK1098524A1 (en) |
RU (1) | RU2403451C2 (en) |
TW (1) | TWI367991B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8545194B2 (en) | 2010-12-10 | 2013-10-01 | Xylem Ip Holdings Llc | Battery operated solar charged pump kit utilizing an inline submersible pump |
CN103121503A (en) * | 2011-11-18 | 2013-05-29 | 镇江江大泵业科技有限公司 | Novel long shaft pump anti-swing device used for ship |
US10385859B2 (en) * | 2013-12-10 | 2019-08-20 | Franklin Electric Company, Inc. | In-line pressure boosting system and method |
RU2726968C1 (en) * | 2016-12-30 | 2020-07-17 | Грундфос Холдинг А/С | Sensor assembly and method of detecting damages in pumps and pump assembly comprising such sensor assembly |
IT202000004879A1 (en) * | 2020-03-09 | 2021-09-09 | Dab Pumps Spa | EASY MAINTENANCE VERTICAL ELECTRIC PUMP |
IT202100014816A1 (en) * | 2021-06-08 | 2022-12-08 | Piusi Spa | DEVICE FOR INSTALLING SUBMERSIBLE PUMPS IN LIQUID STORAGE TANKS. |
EP4386211A1 (en) * | 2021-12-16 | 2024-06-19 | Husqvarna AB | A cover for a liquid reservoir |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2336909A1 (en) * | 1973-07-20 | 1975-02-06 | Loewe Pumpenfabrik Gmbh | High rise building-water system - has pressure booster incorporating immersed pump in compact design |
DE3515547C1 (en) * | 1985-04-30 | 1986-01-02 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Barrel-type centrifugal-pump unit |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US2839006A (en) * | 1956-07-12 | 1958-06-17 | Kellogg M W Co | Pumps for high vapor pressure liquids |
US3672795A (en) * | 1971-02-04 | 1972-06-27 | Trw Inc | Cable-suspended,linear-supported electric pump installation in well casing |
US3746472A (en) * | 1971-08-06 | 1973-07-17 | Rupp Co Warren | Submersible electric pump having fluid pressure protective means |
BE806614A (en) * | 1973-10-26 | 1974-04-26 | Acec | CUVELAGE PUMP |
CH580756A5 (en) * | 1974-07-03 | 1976-10-15 | Sulzer Ag | |
JPS52103002A (en) * | 1976-02-25 | 1977-08-29 | Ebara Corp | Long-noise vertical pump |
CN1012202B (en) * | 1988-02-06 | 1991-03-27 | 陆逢升 | Full dry submerged pump with synergistic selaing system |
US5443368A (en) * | 1993-07-16 | 1995-08-22 | Helix Technology Corporation | Turbomolecular pump with valves and integrated electronic controls |
US5262065A (en) * | 1991-06-20 | 1993-11-16 | Roy. F. Weston, Inc. | Apparatus and method for decontaminating aquifers |
EP0519176B1 (en) * | 1991-06-21 | 1995-11-15 | Fuji Electric Co., Ltd. | Motor driven complex pump apparatus |
GB9222475D0 (en) * | 1992-10-24 | 1992-12-09 | Mangar Aids Ltd | Air pump apparatus |
IT238360Y1 (en) * | 1997-10-13 | 2000-10-16 | Marinox Pompe Di Angoli Marghe | PUMP WITH STORAGE TANK |
DE19855845A1 (en) * | 1998-12-03 | 2000-06-08 | Gep Umwelttechnik Gmbh | Self-priming motor pump unit |
US6412563B1 (en) * | 2000-04-21 | 2002-07-02 | Baker Hughes Incorporated | System and method for enhanced conditioning of well fluids circulating in and around artificial lift assemblies |
US6615926B2 (en) * | 2000-09-20 | 2003-09-09 | Baker Hughes Incorporated | Annular flow restrictor for electrical submersible pump |
-
2005
- 2005-05-06 AT AT05009879T patent/ATE488698T1/en not_active IP Right Cessation
- 2005-05-06 EP EP05009879A patent/EP1719915B1/en active Active
- 2005-05-06 ES ES05009879T patent/ES2355628T3/en active Active
- 2005-05-06 DE DE602005024769T patent/DE602005024769D1/en active Active
-
2006
- 2006-04-29 CN CNB2006101054803A patent/CN100523521C/en active Active
- 2006-05-04 TW TW095115861A patent/TWI367991B/en active
- 2006-05-05 RU RU2006115530/06A patent/RU2403451C2/en active
- 2006-05-05 US US11/418,252 patent/US20060251531A1/en not_active Abandoned
- 2006-05-08 JP JP2006129450A patent/JP2006312939A/en not_active Withdrawn
-
2007
- 2007-05-04 HK HK07104755.0A patent/HK1098524A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2336909A1 (en) * | 1973-07-20 | 1975-02-06 | Loewe Pumpenfabrik Gmbh | High rise building-water system - has pressure booster incorporating immersed pump in compact design |
DE3515547C1 (en) * | 1985-04-30 | 1986-01-02 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Barrel-type centrifugal-pump unit |
Also Published As
Publication number | Publication date |
---|---|
TW200706762A (en) | 2007-02-16 |
RU2403451C2 (en) | 2010-11-10 |
DE602005024769D1 (en) | 2010-12-30 |
ES2355628T3 (en) | 2011-03-29 |
CN100523521C (en) | 2009-08-05 |
EP1719915A1 (en) | 2006-11-08 |
HK1098524A1 (en) | 2007-07-20 |
TWI367991B (en) | 2012-07-11 |
RU2006115530A (en) | 2007-11-10 |
CN1877136A (en) | 2006-12-13 |
JP2006312939A (en) | 2006-11-16 |
ATE488698T1 (en) | 2010-12-15 |
US20060251531A1 (en) | 2006-11-09 |
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