US20140116658A1 - Vehicle cooling system - Google Patents
Vehicle cooling system Download PDFInfo
- Publication number
- US20140116658A1 US20140116658A1 US13/663,817 US201213663817A US2014116658A1 US 20140116658 A1 US20140116658 A1 US 20140116658A1 US 201213663817 A US201213663817 A US 201213663817A US 2014116658 A1 US2014116658 A1 US 2014116658A1
- Authority
- US
- United States
- Prior art keywords
- heat exchanger
- fan
- cooling system
- cooler
- frame
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/20—Off-Road Vehicles
- B60Y2200/22—Agricultural vehicles
- B60Y2200/221—Tractors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
- F01P2003/182—Arrangements or mounting of liquid-to-air heat-exchangers with multiple heat-exchangers
Definitions
- the present disclosure relates to a vehicle cooling system having a plurality of heat exchangers and a fan.
- Conventional vehicle cooling systems include a single stack of coolers. When cooling air blows through such a cooling system on a vehicle, a larger pressure drop for the cooling air across the stack of coolers reduces the ability to flow air through the system. This increases the power required to gain sufficient airflow to cool the vehicle. Coolers that are downstream in the stack receive cooling air that has already been heated by the coolers in front of them. This decreases the efficiency of the rear coolers. The air velocity must also be high on a single stack of coolers which can lead to debris buildup on coolers or the front grill screen if the machine is operating in a dirty environment.
- a multi-faced assembly of cooling units locates the different coolers in an C shaped array around a single cooling fan.
- a charge air cooler is oriented substantially horizontally and is positioned at the top of the assembly.
- a hydraulic oil cooler is oriented substantially horizontally and is positioned at the bottom of the assembly.
- a radiator, condenser and fuel coolers are oriented substantially vertically and are positioned at the front of the assembly.
- a single cooling fan is located at the rear and pulls air through all the coolers.
- FIG. 1 is a right front top perspective view of a vehicle cooling assembly embodying the invention
- FIG. 2 is a right rear perspective view of the assembly of FIG. 1 with parts removed for clarity;
- FIG. 3 is a right rear bottom perspective view of the assembly of FIG. 1 with parts removed for clarity;
- FIG. 4 is a right rear top perspective view of the assembly of FIG. 1 ;
- FIG. 5 is left rear top perspective view of the assembly of FIG. 1 ;
- FIG. 6 is a right front top perspective view of the assembly of FIG. 1 with the top heat exchanger removed.
- a vehicle such as an agricultural tractor, includes a cooling assembly 10 and a structural frame 12 which is attached to the vehicle chassis (not shown).
- the frame 12 includes a bottom part 14 , a left side part 16 and a right side part 18 .
- the frame 12 supports the cooling assembly 10 .
- brackets 24 and 26 are attached to the frame 12 and depend downwardly from a base 25 .
- the base 25 support a radiator or front frame 28 .
- the radiator frame 28 includes a bottom panel 30 , a left panel 32 and a right panel 34 .
- Also supported by the brackets 24 and 26 is an upper cooler frame 36 and a bottom cooler frame 38 .
- Upper cooler frame 36 includes a rear panel 40 , a left panel 42 and a right panel 44 and a front panel 46 .
- Lower cooler frame 38 includes a rear panel 47 , a left panel 48 , a right panel 50 and a front panel 52 .
- Left and right support arms 54 and 56 extend diagonally upwardly and rearwardly from the front panel 52 of bottom cooler frame 38 to the rear panel 40 of upper cooler frame 36 .
- Upper cooler frame 36 slopes upwardly from front to rear.
- Bottom cooler frame 38 slopes downwardly from front to rear.
- the radiator frame 28 supports and partially encloses a first or front cooler or heat exchanger 60 , preferably a conventional vertically oriented radiator.
- the upper cooler frame 36 supports and partially encloses a second or top cooler or heat exchange unit 62 , preferably a charge air cooler.
- the bottom cooler frame 38 supports and partially encloses a third or bottom cooler or heat exchange unit 64 , preferably an hydraulic oil cooler. Viewed from the left side, this assembly of heat exchangers forms a C-shaped array which partially surrounds a volume. Fan 22 is positioned at the rear end of this volume and fan 22 thereby draws air though radiator 60 , charge air cooler 62 and hydraulic oil cooler 64 .
- a fuel cooler 70 is mounted in front of radiator 60 and an air conditioning condenser 72 is mounted between the radiator 60 and the fuel cooler 70 .
- the first or front heat exchanger 60 is spaced apart from and in front of the fan 22 .
- the second or top heat exchanger 62 is positioned between a top portion of the fan 22 and a top portion of the first heat exchanger 60 .
- the third or bottom heat exchanger 64 is positioned between a bottom portion of the fan 22 and a bottom portion of the first heat exchanger 60 .
- Fan shroud 76 includes a cylindrical portion 78 which encircles the fan 22 and a flange 80 which projects upwardly from the cylindrical portion 78 .
- the flange is attached to the rear side of a plate 82
- rear panel 40 of upper cooler frame 36 is attached to the front side of plate 82 .
- the fan shroud 76 forms a structural support for at least the rear end of top heat exchanger 62 .
- a right side panel 84 covers the space between the right sides of heat exchangers 60 , 62 and 64 .
- a left side panel 86 covers the space between the left sides of heat exchangers 60 , 62 and 64 .
- the different coolers are distributed among multiple different stacks of coolers, thus increasing the effective air flow cross sectional area of the system.
- the increased air flow cross sectional area creates a lower pressure drop across the entire system.
- the lower pressure drop allows the system to flow more total cooling air through it.
- Each cooler stack receives lower temperature air than if there was a single stack of coolers. This also increases the efficiency of the coolers. Lowering the velocity of the air into each cooler stack also benefits the system by lowering the exposure to debris buildup on the coolers or on the outer hood screen.
- This cooling system design maintains forward visibility while increasing vehicle power and heat rejection capability. Further, cleaning and assembly of the cooling package is improved over current state of the art cooling packages. This system also lowers the noise produced by the cooling system fan.
Abstract
A vehicle cooling system includes a fan, a first heat exchanger, an upper heat exchanger and a lower heat exchanger. The first heat exchanger is spaced apart in front of the fan. The upper heat exchanger is positioned between a top portion of the fan and a top portion of the first heat exchanger. The lower heat exchanger is positioned between a bottom portion of the fan and a bottom portion of the first heat exchanger. A structural frame supports the first, top and lower heat exchangers, and the frame forming a fan shroud which surrounds the fan.
Description
- The present disclosure relates to a vehicle cooling system having a plurality of heat exchangers and a fan.
- Conventional vehicle cooling systems include a single stack of coolers. When cooling air blows through such a cooling system on a vehicle, a larger pressure drop for the cooling air across the stack of coolers reduces the ability to flow air through the system. This increases the power required to gain sufficient airflow to cool the vehicle. Coolers that are downstream in the stack receive cooling air that has already been heated by the coolers in front of them. This decreases the efficiency of the rear coolers. The air velocity must also be high on a single stack of coolers which can lead to debris buildup on coolers or the front grill screen if the machine is operating in a dirty environment.
- Vehicle cooling arrangements with multiple cooling units arranged around a chamber or volume are shown in U.S. Pat. No. 7,128,178 issued in 2006, U.S. Pat. No. 6,401,801 issued in 2002, U.S. Pat. No. 8,167,067 issued in 2012 and U.S. Pat. No. 7,204,329 issued in 2007 and assigned to the assignee of this application. However, none of these cooling arrangements includes a cooler located at the bottom of a volume defined by the cooling units.
- According to an aspect of the present disclosure, a multi-faced assembly of cooling units locates the different coolers in an C shaped array around a single cooling fan. A charge air cooler is oriented substantially horizontally and is positioned at the top of the assembly. A hydraulic oil cooler is oriented substantially horizontally and is positioned at the bottom of the assembly. A radiator, condenser and fuel coolers are oriented substantially vertically and are positioned at the front of the assembly. A single cooling fan is located at the rear and pulls air through all the coolers.
-
FIG. 1 is a right front top perspective view of a vehicle cooling assembly embodying the invention; -
FIG. 2 is a right rear perspective view of the assembly ofFIG. 1 with parts removed for clarity; -
FIG. 3 is a right rear bottom perspective view of the assembly ofFIG. 1 with parts removed for clarity; -
FIG. 4 is a right rear top perspective view of the assembly ofFIG. 1 ; -
FIG. 5 is left rear top perspective view of the assembly ofFIG. 1 ; and -
FIG. 6 is a right front top perspective view of the assembly ofFIG. 1 with the top heat exchanger removed. - Referring to
FIGS. 1-3 , a vehicle, such as an agricultural tractor, includes acooling assembly 10 and astructural frame 12 which is attached to the vehicle chassis (not shown). Theframe 12 includes abottom part 14, aleft side part 16 and aright side part 18. Theframe 12 supports thecooling assembly 10. - Referring now to
FIGS. 2 and 3 ,brackets frame 12 and depend downwardly from abase 25. Thebase 25 support a radiator orfront frame 28. Theradiator frame 28 includes abottom panel 30, aleft panel 32 and aright panel 34. Also supported by thebrackets upper cooler frame 36 and a bottomcooler frame 38.Upper cooler frame 36 includes arear panel 40, aleft panel 42 and aright panel 44 and afront panel 46.Lower cooler frame 38 includes arear panel 47, aleft panel 48, aright panel 50 and afront panel 52. Left andright support arms front panel 52 of bottomcooler frame 38 to therear panel 40 ofupper cooler frame 36. Uppercooler frame 36 slopes upwardly from front to rear. Bottomcooler frame 38 slopes downwardly from front to rear. - The
radiator frame 28 supports and partially encloses a first or front cooler orheat exchanger 60, preferably a conventional vertically oriented radiator. Theupper cooler frame 36 supports and partially encloses a second or top cooler orheat exchange unit 62, preferably a charge air cooler. The bottomcooler frame 38 supports and partially encloses a third or bottom cooler orheat exchange unit 64, preferably an hydraulic oil cooler. Viewed from the left side, this assembly of heat exchangers forms a C-shaped array which partially surrounds a volume.Fan 22 is positioned at the rear end of this volume andfan 22 thereby draws air thoughradiator 60, chargeair cooler 62 andhydraulic oil cooler 64. - As best seen in
FIG. 1 , afuel cooler 70 is mounted in front ofradiator 60 and anair conditioning condenser 72 is mounted between theradiator 60 and thefuel cooler 70. With this system the first orfront heat exchanger 60 is spaced apart from and in front of thefan 22. The second ortop heat exchanger 62 is positioned between a top portion of thefan 22 and a top portion of thefirst heat exchanger 60. The third orbottom heat exchanger 64 is positioned between a bottom portion of thefan 22 and a bottom portion of thefirst heat exchanger 60. - Referring now to
FIGS. 4 and 6 , thefan 22 is surrounded by astructural fan shroud 76.Fan shroud 76 includes acylindrical portion 78 which encircles thefan 22 and aflange 80 which projects upwardly from thecylindrical portion 78. The flange is attached to the rear side of aplate 82, andrear panel 40 ofupper cooler frame 36 is attached to the front side ofplate 82. As a result, thefan shroud 76 forms a structural support for at least the rear end oftop heat exchanger 62. - As best seen in
FIG. 4 , aright side panel 84 covers the space between the right sides ofheat exchangers FIG. 5 , aleft side panel 86 covers the space between the left sides ofheat exchangers - With this design, the different coolers are distributed among multiple different stacks of coolers, thus increasing the effective air flow cross sectional area of the system. The increased air flow cross sectional area creates a lower pressure drop across the entire system. The lower pressure drop allows the system to flow more total cooling air through it. Each cooler stack receives lower temperature air than if there was a single stack of coolers. This also increases the efficiency of the coolers. Lowering the velocity of the air into each cooler stack also benefits the system by lowering the exposure to debris buildup on the coolers or on the outer hood screen.
- This cooling system design maintains forward visibility while increasing vehicle power and heat rejection capability. Further, cleaning and assembly of the cooling package is improved over current state of the art cooling packages. This system also lowers the noise produced by the cooling system fan.
- While the disclosure has been illustrated and described in detail in the drawings and foregoing description, such illustration and description is to be considered as exemplary and not restrictive in character, it being understood that illustrative embodiments have been shown and described and that all changes and modifications that come within the spirit of the disclosure are desired to be protected. For example, fixed or controllable air baffles could added to direct airflow distribution to various heat exchangers, and additional secondary fans could be added to boost airflow in desired locations. It will be noted that alternative embodiments of the present disclosure may not include all of the features described yet still benefit from at least some of the advantages of such features. Those of ordinary skill in the art may readily devise their own implementations that incorporate one or more of the features of the present disclosure and fall within the spirit and scope of the present invention as defined by the appended claims.
Claims (9)
1. A vehicle cooling system, comprising:
a fan;
a first heat exchanger spaced apart from and in front of the fan;
a second heat exchanger positioned between a top portion of the fan and a top portion of the first heat exchanger; and
a third heat exchanger positioned between a bottom portion of the fan and a bottom portion of the first heat exchanger.
2. The cooling system of claim 1 , wherein:
a fan shroud surrounds the fan; and
the second heat exchanger having a housing which is attached to the fan shroud, the fan shroud forming a structural support for a portion of the top heat exchanger.
3. The cooling system of claim 1 , wherein:
the first heat exchanger comprises a radiator;
the second heat exchanger comprises a charge air cooler; and
the third heat exchanger comprises a hydraulic oil cooler.
4. The cooling system of claim 1 , wherein:
a bracket supports a first cooler fame and a bottom cooler frame.
5. The cooling system of claim 4 , wherein:
left and right support arms extend diagonally upwardly and rearwardly from a front end of the bottom cooler frame to a rear end of the upper cooler frame 36.
6. A vehicle cooling system, comprising:
a fan;
a fan shroud surrounding the fan;
a front heat exchanger spaced apart from and in front of the fan;
an upper heat exchanger positioned between a top portion of the fan and a top portion of the first heat exchanger, the upper heat exchanger having a housing which is attached to the fan shroud, the fan shroud forming a structural support for a portion of the upper heat exchanger; and
a lower heat exchanger positioned between a bottom portion of the fan and a bottom portion of the first heat exchanger.
7. The cooling system of claim 1 , wherein:
the front heat exchanger comprises a radiator;
the upper heat exchanger comprises a charge air cooler; and
the lower heat exchanger comprises a hydraulic oil cooler.
8. A vehicle cooling system, comprising:
a fan;
a first heat exchanger spaced apart from the fan;
an upper heat exchanger positioned between a top portion of the fan and a top portion of the first heat exchanger, the upper heat exchanger having a housing which is attached to the fan shroud; and
a lower heat exchanger positioned between a bottom portion of the fan and a bottom portion of the first heat exchanger; and
a structural frame, the frame supporting the first, top and lower heat exchangers, and the frame forming a fan shroud which surrounds the fan.
9. The cooling system of claim 8 , wherein:
the first heat exchanger comprises a radiator;
the upper heat exchanger comprises a charge air cooler; and
the lower heat exchanger comprises a hydraulic oil cooler.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/663,817 US20140116658A1 (en) | 2012-10-30 | 2012-10-30 | Vehicle cooling system |
EP13187398.6A EP2727756B1 (en) | 2012-10-30 | 2013-10-04 | Vehicle cooling system |
MX2013011961A MX2013011961A (en) | 2012-10-30 | 2013-10-14 | Vehicle cooling system. |
RU2013146092/06A RU2013146092A (en) | 2012-10-30 | 2013-10-15 | VEHICLE COOLING SYSTEM |
AU2013248214A AU2013248214A1 (en) | 2012-10-30 | 2013-10-24 | Vehicle cooling system |
BRBR102013027715-0A BR102013027715A2 (en) | 2012-10-30 | 2013-10-29 | Vehicle cooling system |
JP2013224272A JP2014088173A (en) | 2012-10-30 | 2013-10-29 | Vehicle cooling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/663,817 US20140116658A1 (en) | 2012-10-30 | 2012-10-30 | Vehicle cooling system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140116658A1 true US20140116658A1 (en) | 2014-05-01 |
Family
ID=49322238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/663,817 Abandoned US20140116658A1 (en) | 2012-10-30 | 2012-10-30 | Vehicle cooling system |
Country Status (7)
Country | Link |
---|---|
US (1) | US20140116658A1 (en) |
EP (1) | EP2727756B1 (en) |
JP (1) | JP2014088173A (en) |
AU (1) | AU2013248214A1 (en) |
BR (1) | BR102013027715A2 (en) |
MX (1) | MX2013011961A (en) |
RU (1) | RU2013146092A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105134358A (en) * | 2015-08-26 | 2015-12-09 | 武汉倍沃得热力技术集团有限公司 | Novel oilfield radiator |
US20150369114A1 (en) * | 2014-06-19 | 2015-12-24 | Deere & Company | Vehicle parallel cooling system |
US20160363039A1 (en) * | 2015-06-09 | 2016-12-15 | Ford Global Technologies, Llc | Integrated cooling air shroud assembly |
US9863719B2 (en) | 2014-09-26 | 2018-01-09 | Caterpillar Inc. | Heat exchanger support assembly |
US20190001807A1 (en) * | 2017-05-31 | 2019-01-03 | Hanon Systems | Cooling module for vehicle |
CN109515111A (en) * | 2018-11-20 | 2019-03-26 | 山东临工工程机械有限公司 | The energy saving warm air heating system of electric excavator |
CN111699102A (en) * | 2018-02-01 | 2020-09-22 | 五十铃自动车株式会社 | Cooling structure |
US11591028B2 (en) * | 2020-06-30 | 2023-02-28 | Nissan North America, Inc. | Front end module assembly |
US20230234435A1 (en) * | 2022-01-21 | 2023-07-27 | Cummins Inc | Fuel cell vehicle radiator placement and orientation |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2546547A (en) * | 2016-01-22 | 2017-07-26 | Denso Marston Ltd | A heat exchanger system |
JP7205801B2 (en) * | 2019-04-24 | 2023-01-17 | マツダ株式会社 | vehicle cooling system |
JP7205800B2 (en) * | 2019-04-24 | 2023-01-17 | マツダ株式会社 | vehicle cooling system |
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US20110155081A1 (en) * | 2009-12-30 | 2011-06-30 | Agco Corporation | Agricultural vehicle cooling assembly fan shroud with seals for pass-through cooling and exhaust tubes |
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- 2012-10-30 US US13/663,817 patent/US20140116658A1/en not_active Abandoned
-
2013
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- 2013-10-14 MX MX2013011961A patent/MX2013011961A/en not_active Application Discontinuation
- 2013-10-15 RU RU2013146092/06A patent/RU2013146092A/en not_active Application Discontinuation
- 2013-10-24 AU AU2013248214A patent/AU2013248214A1/en not_active Abandoned
- 2013-10-29 JP JP2013224272A patent/JP2014088173A/en active Pending
- 2013-10-29 BR BRBR102013027715-0A patent/BR102013027715A2/en not_active IP Right Cessation
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150369114A1 (en) * | 2014-06-19 | 2015-12-24 | Deere & Company | Vehicle parallel cooling system |
US9328652B2 (en) * | 2014-06-19 | 2016-05-03 | Deere & Company | Vehicle parallel cooling system |
US9863719B2 (en) | 2014-09-26 | 2018-01-09 | Caterpillar Inc. | Heat exchanger support assembly |
US20160363039A1 (en) * | 2015-06-09 | 2016-12-15 | Ford Global Technologies, Llc | Integrated cooling air shroud assembly |
US9982586B2 (en) * | 2015-06-09 | 2018-05-29 | Ford Global Technologies Llc | Integrated cooling air shroud assembly |
CN105134358A (en) * | 2015-08-26 | 2015-12-09 | 武汉倍沃得热力技术集团有限公司 | Novel oilfield radiator |
US20190001807A1 (en) * | 2017-05-31 | 2019-01-03 | Hanon Systems | Cooling module for vehicle |
US11097610B2 (en) * | 2017-05-31 | 2021-08-24 | Hanon Systems | Cooling module for vehicle |
US20210347248A1 (en) * | 2017-05-31 | 2021-11-11 | Hanon Systems | Cooling module for vehicle |
US11945296B2 (en) * | 2017-05-31 | 2024-04-02 | Hanon Systems | Cooling module for vehicle |
CN111699102A (en) * | 2018-02-01 | 2020-09-22 | 五十铃自动车株式会社 | Cooling structure |
CN109515111A (en) * | 2018-11-20 | 2019-03-26 | 山东临工工程机械有限公司 | The energy saving warm air heating system of electric excavator |
US11591028B2 (en) * | 2020-06-30 | 2023-02-28 | Nissan North America, Inc. | Front end module assembly |
US20230234435A1 (en) * | 2022-01-21 | 2023-07-27 | Cummins Inc | Fuel cell vehicle radiator placement and orientation |
Also Published As
Publication number | Publication date |
---|---|
MX2013011961A (en) | 2014-04-29 |
EP2727756A1 (en) | 2014-05-07 |
BR102013027715A2 (en) | 2015-06-23 |
JP2014088173A (en) | 2014-05-15 |
EP2727756B1 (en) | 2017-07-12 |
AU2013248214A1 (en) | 2014-05-15 |
RU2013146092A (en) | 2015-04-20 |
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AS | Assignment |
Owner name: DEERE & COMPANY, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAPPELMAN, JOSHUA J.;ZIMMERMAN, KALEB;BURK, RONNIE F.;AND OTHERS;REEL/FRAME:029211/0796 Effective date: 20121024 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |