Source: https://patents.google.com/patent/US9410537B2/en
Timestamp: 2019-10-15 07:59:04
Document Index: 678521736

Matched Legal Cases: ['Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 61']

US9410537B2 - Low profile, surface-mounted power generation system - Google Patents
Low profile, surface-mounted power generation system Download PDF
US9410537B2
US9410537B2 US13/914,554 US201313914554A US9410537B2 US 9410537 B2 US9410537 B2 US 9410537B2 US 201313914554 A US201313914554 A US 201313914554A US 9410537 B2 US9410537 B2 US 9410537B2
US13/914,554
US20140152022A1 (en
Eugene J. Kennedy
Kinetic Energy Corp [a Wholly Owned Subsidiary Of Solarwindow Technologies Inc]
2009-01-27 Priority to US14775409P priority Critical
2009-01-27 Priority to US14775009P priority
2009-01-27 Priority to US14775209P priority
2009-01-27 Priority to US14774809P priority
2009-01-27 Priority to US14774709P priority
2009-01-27 Priority to US14774909P priority
2010-01-27 Priority to US12/695,146 priority patent/US8466571B2/en
2010-01-27 Priority to US12/695,132 priority patent/US8461700B2/en
2010-01-27 Priority to US12/695,143 priority patent/US8471395B2/en
2010-01-27 Priority to US12/695,136 priority patent/US8461701B2/en
2010-01-27 Priority to US12/695,139 priority patent/US8466570B2/en
2010-01-27 Priority to US12/695,148 priority patent/US9212654B2/en
2013-06-10 Priority to US13/914,554 priority patent/US9410537B2/en
2013-06-10 Application filed by Kinetic Energy Corp [a Wholly Owned Subsidiary Of Solarwindow Technologies Inc] filed Critical Kinetic Energy Corp [a Wholly Owned Subsidiary Of Solarwindow Technologies Inc]
2014-06-05 Publication of US20140152022A1 publication Critical patent/US20140152022A1/en
2016-06-22 Assigned to KINETIC ENERGY CORPORATION [A WHOLLY OWNED SUBSIDIARY OF SOLARWINDOW TECHNOLOGIES, INC.] reassignment KINETIC ENERGY CORPORATION [A WHOLLY OWNED SUBSIDIARY OF SOLARWINDOW TECHNOLOGIES, INC.] ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KENNEDY, EUGENE J.
2016-08-09 Publication of US9410537B2 publication Critical patent/US9410537B2/en
2019-06-11 Assigned to SOLARWINDOW TECHNOLOGIES, INC. reassignment SOLARWINDOW TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KINETIC ENERGY CORPORATION
2019-06-13 Assigned to SOLARWINDOW TECHNOLOGIES, INC. reassignment SOLARWINDOW TECHNOLOGIES, INC. CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME INSIDE THE ASSIGNMENT DOCUMENT PREVIOUSLY RECORDED AT REEL: 049434 FRAME: 0057. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT . Assignors: KINETIC ENERGY CORPORATION
238000010248 power generation Methods 0 description title 10
A low-profile, surface mount vehicle energy harvester including a low-profile, surface mount subunit having an upper surface forming a roadway surface; a vehicle activated treadle on the subunit, the vehicle activated treadle moveable between a first position in which an upper surface of the treadle is at an angle with respect to the upper surface of the roadway surface and a second position in which the upper surface of the treadle is flush with the upper surface of the roadway surface; a generator that generates power in response to movement of the vehicle activated treadle; and an entry ramp at a first end of the harvester roadway surface; and an exit ramp at a second end of the harvester roadway surface.
The present invention claims the benefit of U.S. Provisional Patent Application No. 61/147,747, filed Jan. 27, 2009, and entitled “TRANSIENT ABSORBER FOR POWER GENERATION SYSTEM”, U.S. Provisional Patent Application No. 61/147,748, filed Jan. 27, 2009, and entitled “WEATHER RESPONSIVE TREADLE LOCKING MEANS FOR POWER GENERATION SYSTEM”, U.S. Provisional Patent Application No. 61/147,749, filed Jan. 27, 2009, and entitled “LOW PROFILE, SURFACE-MOUNTED POWER GENERATION SYSTEM”, U.S. Provisional Patent Application No. 61/147,750, filed Jan. 27, 2009, and entitled “VEHICLE SPEED DETECTION MEANS FOR POWER GENERATION SYSTEM”, U.S. Provisional Patent Application No. 61/147,752, filed Jan. 27, 2009, and entitled “RECIPROCAL SPRING ARRANGEMENT FOR POWER GENERATION SYSTEM”, and U.S. Provisional Patent Application No. 61/147,754, filed Jan. 27, 2009, and entitled “LOSSLESS SHORT-DURATION ELECTRICAL STORAGE MEANS FOR POWER GENERATION SYSTEM”, the entire contents of which are incorporated herein by reference in their entirety.
The present invention is directed toward devices and methods of harvesting vehicle energy, and more specifically, toward a Low Profile, Surface-Mounted Power Generation System for harvesting vehicle energy.
Very few devices that capture energy from passing vehicles have been implemented, despite numerous designs put forth by various parties over the years. Issues of efficiency, reliability, and manufacturability, among others, have limited the practicality of vehicle energy harvesting devices. Added to the challenge is the variability of vehicle sizes, speeds, axle configurations, and lane positions, all of which can greatly influence the operation of a device trying to capture the motion energy of vehicles and convert it into a useful form of energy.
Therefore, a need exists for an energy capture device and method having improved efficiency, reliability, and manufacturability, as well as practicality. A need also exists for an energy capture device and method that takes into account the variability of vehicle sizes, speeds, axle configurations, and lane positions in converting the captured motion energy of vehicles into a useful form of energy.
These problems and others are addressed by the present invention, which provides a novel vehicle energy harvester that overcomes many of the issues with the conventional devices and is therefore better suited for real-world implementation than the conventional devices.
The exemplary embodiments of the invention make productive use of the energy that is normally wasted (in the form of heat) in reducing the speed of motor vehicles on exit ramps, toll plazas etc., etc. The vehicle energy harvester can absorb mechanical energy from passing (or breaking) vehicles and convert the mechanical energy to electrical energy using, for example, shaft driven generators.
The disclosed embodiments provide a vehicle energy harvester and power generation system that is simple to install, provides a short payback period, and has a scalable configuration. More particularly, the disclosed embodiments can provide a simple and reliable mechanical configuration that can withstand severe environments. The low cost configuration of the system may provide for faster payback of the expense of the system, and therefore, make the system more practical and desirable for practical applications.
Additionally, the ease with which the system can be installed also may make the system more practical and desirable for practical applications. The disclosed embodiments require little or no excavation and can be installed in a few hours, instead of over several days as with conventional devices.
The disclosed embodiment also can provide a scalable configuration that may be particularly advantageous for use at locations, such as exits ramps, toll plazas, hills, among other locations.
The exemplary embodiments provide a low profile unit mounted directly on top of the existing roadway. In addition to this, other conventional devices do not have a means for determining the speed of oncoming vehicles. The disclosed embodiments provide important advantages in that vehicles traveling faster than the posted speed limit can be slowed by the vehicle energy harvester unit and a portion of the vehicle's kinetic energy can be converted to electricity rather than wasted as heat from the vehicles braking system. Conversely, vehicles traveling at or below the posted speed limit can be allowed to pass unimpeded.
An exemplary embodiment of the invention is directed to, for example, a low-profile, surface mount vehicle energy harvester including a low-profile, surface mount subunit having an upper surface forming a roadway surface, a vehicle activated treadle on the subunit, the vehicle activated treadle moveable between a first position in which an upper surface of the treadle is at an angle with respect to the upper surface of the roadway surface and a second position in which the upper surface of the treadle is flush with the upper surface of the roadway surface, a generator that generates power in response to movement of the vehicle activated treadle, an entry ramp at a first end of the harvester roadway surface, and an exit ramp at a second end of the harvester roadway surface.
Another exemplary embodiment of the invention is directed to, for example, a vehicle energy harvester comprising a plurality of subunits each having an upper surface forming a roadway surface, a vehicle activated treadle on at least one of the plurality of subunits, the vehicle activated treadle moveable between a first position in which an upper surface of the treadle is at an angle with respect to the upper surface of the roadway surface and a second position in which the upper surface of the treadle is flush with the upper surface of the roadway surface, a generator that generates power in response to movement of the vehicle activated treadle, an entry ramp at a first end of the harvester roadway surface, and an exit ramp at a second end of the harvester roadway surface.
FIG. 1 is a schematic top view of a power absorber unit of a vehicle energy harvester.
FIG. 2 is a schematic perspective view illustrating a portion of a vehicle energy harvester.
FIG. 3 is a schematic top view of a low-profile, surface mount vehicle energy harvester.
Referring now to the drawings, FIGS. 1-3 illustrate an exemplary vehicle energy harvester 10.
The exemplary embodiments can make productive use of the energy that is normally wasted (in the form of heat) in reducing the speed of motor vehicles on exit ramps, toll plazas etc., etc. The vehicle energy harvester 10 can absorb mechanical energy from passing (or breaking) vehicles and convert the mechanical energy to electrical energy using, for example, shaft driven generators. Other means for converting the mechanical energy to electrical energy also are contemplated. In an exemplary embodiment, the electric power from the generators can be converted, metered, and fed into the commercial power grid. In another exemplary aspect, each site can be equipped with wireless communications to monitor the status and/or output of the system.
Power Absorber Configuration
The disclosed embodiments can include individual assemblies with integral generators. Other generator configurations also are possible, such as separate generators.
As shown in FIG. 1, the vehicle energy harvester unit 10 can be a low-profile surface mounted assembly. The vehicle energy harvester unit 10 can include an entry ramp 12 and an exit ramp 14. The vehicle energy harvester unit 10 can include a plurality of subunits 16. Each subunit can include one or more vehicle activated treadles 18. In an embodiment, each subunit 16 can include a generator unit 20 disposed alongside the roadway surface when viewed from above, as illustrated in the exemplary embodiment of FIG. 1.
In other embodiments, the vehicle energy harvester unit 10 can be set into the road surface. The surface mounted assembly may require minimal installation effort. Additionally, the unit count can be scaled to road/breaking needs. In an embodiment, each generator unit 20 can feed a common power summing/conversion unit 22. A simple cable interconnect 24 can be provided to connect each generator unit 20 to the common power summing/conversion unit 22. A fail safe configuration can protect the system against individual unit failures.
In a disclosed embodiment, the individual absorber units 16 can be connected via cable assemblies 24. The input power can be summed and applied to a low-loss inverter unit. The power can be converted immediately to a form that is transmittable to the power grid. The output can be metered and applied to the power grid for transmission.
Absorber Unit Operation
With reference to FIG. 2, an exemplary embodiment of a subunit 16 of a vehicle energy harvester unit 10 can include spring-loaded treadles 18 having a treadles gear 30 engaging a drive gear 32. The drive gear 32 is coupled to a shaft 34. In operation, one or more vehicle tires force the spring-loaded treadles 18 down as they roll over the treadles 18. The treadle gears 30 drive the plurality of drive gears 32, which rotate the shaft 34. The shaft 34 winds a torsion spring 36, thereby absorbing the treadle drive transient. A pawl can lock the shaft 34 as rotation ends. The torsion spring 36 rotates a flywheel 38, thereby spreading the impulse of the treadle drive over time to extend output to a generator 40. The flywheel 38 can turn a generator 40, such as a hydro pump. The generator 40, in turn, can generate electric power for sale/use/storage.
The exemplary embodiments improve the durability of the system under practical use scenarios.
Conventional devices generally require a large installation effort that may include roadbed excavation (and attendant construction) or other significant modifications to the road surface. The exemplary embodiments provide a low profile vehicle energy harvester unit 10 mounted directly on top of the existing roadway. In addition to this, other conventional devices do not have a means for determining the speed of oncoming vehicles. The speed of oncoming vehicles is beneficial such that vehicles traveling faster than the posted speed limit can be slowed by the vehicle energy harvester unit and a portion of the vehicle's kinetic energy is converted to electricity rather than wasted as heat from the vehicles braking system. Conversely, vehicles traveling at or below the posted speed limit will be allowed to pass unimpeded. These improvements are discussed below.
Low Profile, Surface-Mounted Design
With reference to FIGS. 1-3, an exemplary embodiment of a low-profile, surface mount vehicle energy harvester unit 10 will now be described.
An exemplary embodiment provides a vehicle energy harvester unit 10 that is designed as a low-profile assembly that can be mounted directly atop existing roadways with little or no modifications to the roadway. This configuration provides practical benefits with respect to installation and maintenance. It also may provide a significant cost advantage as compared to other approaches requiring elaborate installation/construction efforts. The embodiments of the exemplary vehicle energy harvester units 10 can be installed in a matter of hours vs. days. Likewise, maintenance can be greatly improved whereby defective components can be replaced quickly and easily without any major construction work and accompanying delays to traffic. A preferred component used in achieving this configuration is a custom designed permanent magnet alternator that has, for example, a cylindrical form factor approximately 4 inches in diameter and 2 inches in height. The overall operation of the vehicle energy harvester unit 10 is shown in FIGS. 1-3.
The vehicle energy harvester unit 10 can include a modular construction having a plurality of subunits 16, thereby providing a simple and easy installation and maintenance of the vehicle energy harvester unit 10. The modular construction of the plurality of subunits 16 can enable a scalable configuration such that the vehicle energy harvester unit 10 can be configured for various applications, space requirements, desired power generation, etc.
In an exemplary embodiment, a height of each of the subunits 16 preferably is limited to less than or equal to three (3) inches. However, other heights are possible, for example, for entry ramps 12 and exit ramps 14 having a variety of slopes and lengths.
A length and slope of the entry ramps 12 and exit ramps 14 can be selected based on the height of the subunits 16 and the particular application of the vehicle energy harvester unit 10. For example, the length of the entry ramp 12 and/or the exit ramp 14 can be increased, thereby reducing the slope of the entry ramp 12 and/or the exit ramp 14 for a given height of the subunits 16 and minimizing the impact on the vehicle energy harvester unit 10 by a vehicle, as well as minimizing a discomfort the user of the vehicle driving over the vehicle energy harvester unit 10. The vehicle energy harvester unit 10 has a simplified arrangement that provides ample space and adaptability for structural reinforcement.
1. A low-profile, surface mount vehicle energy harvester comprising:
a low-profile, surface mount subunit having an upper surface forming a roadway surface;
a vehicle activated treadle on the subunit, the vehicle activated treadle rotatable between a first position in which an upper surface of the treadle is at an angle with respect to the upper surface of the roadway surface and a second position in which the upper surface of the treadle is flush with the upper surface of the roadway surface;
a generator that generates power in response to rotation of the vehicle activated treadle;
an entry ramp at a first end of the upper surface of the low-profile, surface mount subunit; and
an exit ramp at a second end of the upper surface of the low-profile, surface mount subunit.
2. The vehicle energy harvester of claim 1, wherein a height of the low-profile, surface mount subunit is one of equal to and less than three inches.
3. The vehicle energy harvester of claim 1, comprising:
a treadle gear coupled to the vehicle activated treadle; and
a drive gear mounted on a rotatable shaft, the drive gear engaging and being driven by rotation of the treadle gear;
wherein the rotatable shaft is coupled to the generator.
4. The vehicle energy harvester of claim 3, comprising a torsion spring coupled between the rotatable shaft and the generator.
5. The vehicle energy harvester of claim 4, comprising:
a flywheel coupled between the torsion spring and the generator.
6. The vehicle energy harvester of claim 1, wherein the generator is disposed alongside the roadway surface when viewed from above.
7. The vehicle energy harvester of claim 1, wherein the low-profile, surface mount subunit includes a lower surface configured to be mounted directly on to of an existing roadway.
8. The vehicle energy harvester of claim 7, wherein the generator is disposed alongside the roadway surface when viewed from above.
9. The vehicle energy harvester of claim 8, further comprising:
a drive gear mounted on a rotatable shaft, wherein the drive gear is driven by rotation of the vehicle activated treadle, and the rotatable shaft is coupled to the generator.
10. The vehicle energy harvester of claim 9, further comprising:
a transient absorption device coupled between the drive gear and the generator.
11. The vehicle energy harvester of claim 10, wherein the transient absorption device is a torsion spring.
12. The vehicle energy harvester of claim 10, wherein the transient absorption device is a flexible link.
13. The vehicle energy harvester of claim 10, further comprising a flywheel coupled between the transient absorption device and the generator.
14. A vehicle energy harvester comprising:
a plurality of subunits each having an upper surface forming a roadway surface;
a vehicle activated treadle on at least one of the plurality of subunits, the vehicle activated treadle rotatable between a first position in which an upper surface of the treadle is at an angle with respect to the upper surface of the roadway surface and a second position in which the upper surface of the treadle is flush with the upper surface of the roadway surface;
15. A low-profile, surface mount vehicle energy harvester comprising:
a plurality of interconnected subunits each having an upper surface configured to form a roadway surface for supporting a vehicle travelling over the vehicle energy harvester and a lower surface configured to be mounted directly on to of an existing roadway;
a generator that generates power in response to rotation of the vehicle activated treadle, the generator disposed alongside the roadway surface;
an entry ramp at a first end of the upper surface of the low-profile, surface mount subunit to transition from the existing roadway to the upper surface; and
an exit ramp at a second end of the upper surface of the low-profile, surface mount subunit to transition from the upper surface to the existing roadway,
wherein the generator is disposed alongside the roadway surface when viewed from above.
16. The vehicle energy harvester of claim 15, further comprising:
17. The vehicle energy harvester of claim 16, further comprising:
US13/914,554 2009-01-27 2013-06-10 Low profile, surface-mounted power generation system Active US9410537B2 (en)
US14775209P true 2009-01-27 2009-01-27
US14774809P true 2009-01-27 2009-01-27
US14774709P true 2009-01-27 2009-01-27
US14774909P true 2009-01-27 2009-01-27
US14775409P true 2009-01-27 2009-01-27
US14775009P true 2009-01-27 2009-01-27
US12/695,143 US8471395B2 (en) 2009-01-27 2010-01-27 Vehicle speed detection means for power generation system
US12/695,136 US8461701B2 (en) 2009-01-27 2010-01-27 Weather responsive treadle locking means for power generation system
US12/695,139 US8466570B2 (en) 2009-01-27 2010-01-27 Low profile, surface-mounted power generation system
US12/695,132 US8461700B2 (en) 2009-01-27 2010-01-27 Transient absorber for power generation system
US12/695,148 US9212654B2 (en) 2009-01-27 2010-01-27 Lossless short-duration electrical storage means for power generation system
US12/695,146 US8466571B2 (en) 2009-01-27 2010-01-27 Reciprocal spring arrangement for power generation system
US13/914,554 US9410537B2 (en) 2009-01-27 2013-06-10 Low profile, surface-mounted power generation system
US15/050,303 US20160380511A1 (en) 2009-01-27 2016-02-22 Transient absorber for power generation system
US15/190,691 US20170110936A1 (en) 2009-01-27 2016-06-23 Lossless short-duration electrical storage means for power generation system
US12/695,139 Continuation US8466570B2 (en) 2009-01-27 2010-01-27 Low profile, surface-mounted power generation system
US12/695,132 Continuation US8461700B2 (en) 2009-01-27 2010-01-27 Transient absorber for power generation system
US12/695,148 Continuation US9212654B2 (en) 2009-01-27 2010-01-27 Lossless short-duration electrical storage means for power generation system
US12/695,143 Continuation US8471395B2 (en) 2009-01-27 2010-01-27 Vehicle speed detection means for power generation system
US12/695,136 Continuation US8461701B2 (en) 2009-01-27 2010-01-27 Weather responsive treadle locking means for power generation system
US13/914,559 Continuation US9341167B2 (en) 2009-01-27 2013-06-10 Vehicle speed detection means for power generation system
US13/914,547 Continuation US9366239B2 (en) 2009-01-27 2013-06-10 Weather responsive treadle locking means for power generation system
US20140152022A1 US20140152022A1 (en) 2014-06-05
US9410537B2 true US9410537B2 (en) 2016-08-09
ID=42395991
US12/695,132 Active 2030-08-11 US8461700B2 (en) 2009-01-27 2010-01-27 Transient absorber for power generation system
US12/695,146 Active 2030-08-19 US8466571B2 (en) 2009-01-27 2010-01-27 Reciprocal spring arrangement for power generation system
US12/695,148 Active 2030-12-12 US9212654B2 (en) 2009-01-27 2010-01-27 Lossless short-duration electrical storage means for power generation system
US12/695,139 Active 2030-08-18 US8466570B2 (en) 2009-01-27 2010-01-27 Low profile, surface-mounted power generation system
US12/695,136 Active 2030-08-08 US8461701B2 (en) 2009-01-27 2010-01-27 Weather responsive treadle locking means for power generation system
US12/695,143 Active 2030-08-16 US8471395B2 (en) 2009-01-27 2010-01-27 Vehicle speed detection means for power generation system
US13/893,335 Abandoned US20140152020A1 (en) 2009-01-27 2013-05-13 Transient absorber for power generation system
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US13/914,564 Active 2031-04-27 US9470214B2 (en) 2009-01-27 2013-06-10 Reciprocal spring arrangement for power generation system
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EP2422442B1 (en) 2017-04-19
EP2411816A4 (en) 2015-08-19
US20110084500A1 (en) 2011-04-14
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EP2433354A4 (en) 2017-03-01
WO2010088308A1 (en) 2010-08-05
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EP2425526B1 (en) 2017-07-19
CN102369658B (en) 2014-11-12
US20160380511A1 (en) 2016-12-29
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US20110084499A1 (en) 2011-04-14
EP2425526A4 (en) 2016-02-17
CA2788393A1 (en) 2010-08-05
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US20170110936A1 (en) 2017-04-20
CN102369446A (en) 2012-03-07
EP2411816A1 (en) 2012-02-01
WO2010088314A3 (en) 2010-09-23
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WO2010088310A1 (en) 2010-08-05
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EP2449260A4 (en) 2017-03-01
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WO2010088307A1 (en) 2010-08-05
CN102369661A (en) 2012-03-07
EP2422442A4 (en) 2015-06-24
CN102369662B (en) 2015-03-25
EP2449260A2 (en) 2012-05-09
EP2425526A1 (en) 2012-03-07
CA2788179A1 (en) 2010-08-05
US9212654B2 (en) 2015-12-15
EP2433354A2 (en) 2012-03-28
CN102369662A (en) 2012-03-07
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US20140152021A1 (en) 2014-06-05
WO2010088314A2 (en) 2010-08-05
CN102369659B (en) 2015-07-15
CA2788242A1 (en) 2010-08-05
EP2422443A1 (en) 2012-02-29
US8461701B2 (en) 2013-06-11
WO2010088312A3 (en) 2010-10-21
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US20140152022A1 (en) 2014-06-05
CN102369659A (en) 2012-03-07
EP2422443A4 (en) 2015-08-12
WO2010088306A1 (en) 2010-08-05
CN102369661B (en) 2014-12-10
EP2411816B1 (en) 2016-11-30
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US8471395B2 (en) 2013-06-25
CN102369658A (en) 2012-03-07
US8466571B2 (en) 2013-06-18
EP2422443B1 (en) 2017-05-03
CA2788183A1 (en) 2010-08-05
WO2010088312A2 (en) 2010-08-05
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