US20030051864A1 - Device for cooling of heat-generating units - Google Patents
Device for cooling of heat-generating units Download PDFInfo
- Publication number
- US20030051864A1 US20030051864A1 US10/257,625 US25762502A US2003051864A1 US 20030051864 A1 US20030051864 A1 US 20030051864A1 US 25762502 A US25762502 A US 25762502A US 2003051864 A1 US2003051864 A1 US 2003051864A1
- Authority
- US
- United States
- Prior art keywords
- heat exchanger
- air flow
- external air
- climate module
- heat
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/206—Air circulating in closed loop within cabinets wherein heat is removed through air-to-air heat-exchanger
Definitions
- the present invention relates to a method for cooling heat generating units in for instance radio base stations, and an apparatus for cooling heat generating units in for instance radio base stations.
- a radio base station comprises a lot of heat dissipating units.
- FIG. 1 shows an internal view of a climate module according to the invention for support by e.g. a door.
- FIG. 2 shows an external view of the climate module in FIG. 1.
- FIG. 3 shows an internal view of the climate module in FIG. 2 with stated flow directions.
- FIG. 4 shows an internal view of an alternative climate module according to the invention for support by a door.
- FIG. 5 shows an external view of the climate module in FIG. 4.
- FIG. 6 shows an internal view of the climate module in FIG. 4 with stated flow directions.
- FIG. 7 shows an internal view of yet a climate module according to the for support by a door.
- FIG. 8 shows an external view of the climate module in FIG. 7.
- FIG. 9 shows an internal view of the climate module in FIG. 8 with stated flow directions.
- FIGS. 1 and 2 a so called climate module 1 is shown, and how such a climate module is to be arranged for cooling a radio base station.
- the climate module will be placed as a unit on an inner side of a door of the radio base station, wherein the climate module is adapted as a heat exchanger, so as to cool an indoor air flow by means of an outdoor air flow originating from the surrounding atmosphere, wherein the cooled indoor air is used for cooling heat generating units in the radio base station.
- the inner side of the door see FIG.
- the climate module 1 is arranged, and on which inner side an opening 2 is located at an upper part, for intake of heated indoor air 3 , and at a lower part an opening 4 is located, for exhaust of cooled indoor air 5 , whereby parts of a fan 6 for intake of heated indoor air and exhaust of cooled indoor air are shown.
- an opening 7 is located at an upper part, for intake of cold outdoor air 8 intended for heat exchange, and an opening 9 for exhaust of, by indoor air heated through said heat exchange, outdoor air 10 .
- an opening for exhaust of outdoor air 12 is provided, which outdoor air 12 is heated by means of heat exchanged indoor air, and an opening 13 for intake of cold outdoor air 14 intended for heat exchange.
- FIG. 3 an external view of the climate module is shown, where a cover at the door side is removed, so as to show how the various air flows are acting inside the climate module.
- an outdoor air flow 17 is crossing, in a heat exchanger 18 , heated indoor air 19 from right to left.
- an outdoor air flow is crossing, in a heat exchanger 21 , the heated indoor air from left to right.
- spaces 22 , 23 adapted for intake of outdoor air the intake fans 15 , 16 are mounted on beams 24 , 25 connecting the upper side and the lower side of the climate module, respectively with an intermediate partition element 26 .
- the intake fans 15 , 16 cold outdoor air is drawn into and forced through the heat exchangers 18 , 21 , and the heated outdoor air is collected in spaces 27 , 28 within the openings 9 , 11 for exhaust of the heated outdoor air.
- the opening 2 for intake of heated indoor air is shown, and in the centre of the lower part the intake fan 6 for the heated indoor air is shown.
- the horizontal arrows 17 , 20 show the flow directions of the cold outdoor air through the heat exchangers 18 , 21 from the intake fans 15 , 16 to the outlet chambers 27 , 28 .
- the vertical arrow 19 shows the flow direction of the heated indoor air through the heat exchangers 18 , 21 from the inlet opening 2 to the intake fan 6 .
- FIG. 4 an interior view of the climate module 29 is shown, which is similar to the climate module shown in FIGS. 1 - 3 , and being provided with a sealing cover 30 .
- this type of heat exchanger may be arranged on the inner side of a door of e.g. a radio base station. Heated air 31 from the various units in the radio base station is drawn into an opening 32 in the upper part of the module and is then exhausted, cooled 33 by outdoor air, from an opening 34 in the lower part of the module, which may be provided with guiding ribs so as to achieve some guidance of the cooled indoor air leaving the module.
- a door of e.g. a radio base station Heated air 31 from the various units in the radio base station is drawn into an opening 32 in the upper part of the module and is then exhausted, cooled 33 by outdoor air, from an opening 34 in the lower part of the module, which may be provided with guiding ribs so as to achieve some guidance of the cooled indoor air leaving the module.
- FIG. 5 an external view of the box-like module 29 is shown, comprising two cooling air intakes 35 , 36 arranged on a first side of the module in connection with intake fans 37 , 38 for cooling air 42 , and two outlet chambers 40 , 41 for heated cooling air 43 , are arranged on the second side. At a lower portion the location of an intake fan 44 is indicated.
- FIG. 6 an internal view of the flow directions through the climate module 29 having the cover 30 removed are shown.
- the horizontal arrows 45 , 46 show the flow directions through the heat exchangers 47 , 48 of the cooling air flows, from the intake fans 37 , 38 at the right, to the outlet chambers 40 , 41 at the left.
- a vertical arrow 49 shows a flow direction of a heated air flow from the upper inlet opening 32 , through the heat exchangers 47 , 48 , to a lower outlet opening 50 , in which the intake fan 44 is arranged.
- the intake fans 37 , 38 for the outdoor air are arranged on respective cross bars 52 against the cover.
- the outlet chamber 34 for the cooled indoor air requires a greater portion of the lower part of the module, which together with the guiding ribs result in a directed cooling air flow for the interior units accommodated in for instance a radio base station.
- FIG. 7 yet an example of a climate module 53 adapted for heat exchange is shown, which is to be mounted on e.g. the inner side of a door of a radio base station, so as to cool the various units within the radio base station.
- an inlet opening 54 At an upper, inner part of the climate module an inlet opening 54 , and behind this opening, an intake fan 55 are located for intake of hot indoor air 56 , and at a lower part an outlet opening 57 for cooled indoor air 58 is located.
- FIG. 7 yet an example of a climate module 53 adapted for heat exchange is shown, which is to be mounted on e.g. the inner side of a door of a radio base station, so as to cool the various units within the radio base station.
- an inlet opening 54 At an upper, inner part of the climate module an inlet opening 54 , and behind this opening, an intake fan 55 are located for intake of hot indoor air 56 , and at a lower part an outlet opening 57 for cooled indoor air 58 is located.
- an external view of the climate module having, at a lower portion, two inlet openings 59 , 60 being provided with intake fans 61 , 62 for cold outdoor air 63 , 64 and at an upper portion, two outlet openings 65 , 66 for heat exchanged outdoor air 67 , 68 .
- the cold outdoor air 63 , 64 is drawn into the climate module, e.g. by means of the fans through a grate in the door side, which then force the cold air, from two directions, through a heat exchanger, whereupon the outdoor air leaves the heat exchanger and continuous out via the outlet openings 65 , 66 .
- FIG. 9 the flow directions through the heat exchanger are shown.
- An arrow 70 shows the flow direction of the cold outdoor air from a lower intake chamber 71 at the left, through the heat exchanger 69 , and further on to an upper outlet chamber 72 at the right.
- An arrow 73 shows the flow direction of the cold outdoor air from a lower intake chamber 74 at the right, through the heat exchanger 69 , and further on to an upper outlet chamber 75 at the left.
- a vertical arrow 76 shows the flow direction of the heated indoor air from the intake fan 55 , through the heat exchanger 69 , to the lower outlet chamber 57 .
- a supervisory unit 77 may control, by means of detecting temperatures 78 , 79 , the speed of revolution of at least one of the fans, so as to achieve an optimal cooling of the enclosed heat generating electronics.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to a method and an apparatus for cooling heat generating units, such as mobile telephone equipment in a radio base station. By providing a heat exchanger (69) having crossing flow directions for an internal vertical air flow (76) and external lateral, cooling air flows (70, 73) in a vertical area, such as a wall portion to the radio base station, for instance as a part of a door to the radio base station, excellent cooling may be achieved without substantially affecting the space by means of the heat exchanging function, which is intented for the equipment.
Description
- The present invention relates to a method for cooling heat generating units in for instance radio base stations, and an apparatus for cooling heat generating units in for instance radio base stations. A radio base station comprises a lot of heat dissipating units.
- Telephone equipment located in closed spaces release heat during its operation. This process is continuously in progress and the temperature around the equipment must be kept within certain limits. Particularly, it is of great importance that a specified maximum temperature is not to be exceeded. Usually, mechanical cooling system, such as compressor operated evaporation systems are used to manage cooling and temperature control. In these systems hot indoor air is passing through an evaporator so as to cool it. The cooled air is then recirculated to the space. Continuous heat dissipation require continuous cooling. Prior art documents, such as U.S. Pat. No. 3,559,728, DE-C2-3 044 135, DE-C1-4 134 429 and Ericsson Review, ERA, no. 9, 82-10-01, page 24-26 “Klimatisering av apparatskåp” show how electronics enclosed in a space may be cooled by means of interchange of heat, i.e. letting cold outdoor air flows cool hot indoor air flows in a heat exchanger.
- To cool telephone equipment in outdoor cabinets, such as a mobile telephone equipment in a radio base station cooling is required, which preferably is taken from the atmosphere surrounding the radio base station. By arranging at least one heat exchanging function with crossing air flow directions in a vertical area, such as a wall portion of the radio base station, for example constituting a part of a door of the radio base station, between at least one internal vertical air flow and at least one cooling, from the side flowing, external air flow, excellent cooling of the equipment may be achieved, without substantially affecting the space intended for the equipment due to the presence of the heat exchanging function. By arranging the heat exchanging function in an openable door for the space intended for the equipment, the components of the heat exchanging function may easily be mounted, repaired and cleaned.
- The invention will now be more closely described by means of preferred embodiments and with reference to appended drawings.
- FIG. 1 shows an internal view of a climate module according to the invention for support by e.g. a door.
- FIG. 2 shows an external view of the climate module in FIG. 1.
- FIG. 3 shows an internal view of the climate module in FIG. 2 with stated flow directions.
- FIG. 4 shows an internal view of an alternative climate module according to the invention for support by a door.
- FIG. 5 shows an external view of the climate module in FIG. 4.
- FIG. 6 shows an internal view of the climate module in FIG. 4 with stated flow directions.
- FIG. 7 shows an internal view of yet a climate module according to the for support by a door.
- FIG. 8 shows an external view of the climate module in FIG. 7.
- FIG. 9 shows an internal view of the climate module in FIG. 8 with stated flow directions.
- In FIGS. 1 and 2 a so called
climate module 1 is shown, and how such a climate module is to be arranged for cooling a radio base station. Preferably, the climate module will be placed as a unit on an inner side of a door of the radio base station, wherein the climate module is adapted as a heat exchanger, so as to cool an indoor air flow by means of an outdoor air flow originating from the surrounding atmosphere, wherein the cooled indoor air is used for cooling heat generating units in the radio base station. Preferably, on the inner side of the door, see FIG. 1, theclimate module 1 is arranged, and on which inner side anopening 2 is located at an upper part, for intake of heatedindoor air 3, and at a lower part an opening 4 is located, for exhaust of cooledindoor air 5, whereby parts of afan 6 for intake of heated indoor air and exhaust of cooled indoor air are shown. On the outside of the climate module, see FIG. 2, an opening 7 is located at an upper part, for intake of cold outdoor air 8 intended for heat exchange, and anopening 9 for exhaust of, by indoor air heated through said heat exchange,outdoor air 10. In a lower part of the climate module an opening for exhaust ofoutdoor air 12 is provided, whichoutdoor air 12 is heated by means of heat exchanged indoor air, and anopening 13 for intake of coldoutdoor air 14 intended for heat exchange. In the openings intended for intake of cold outdoor air, parts ofintake fans outdoor air flow 17 is crossing, in aheat exchanger 18, heatedindoor air 19 from right to left. At a lower part, an outdoor air flow is crossing, in aheat exchanger 21, the heated indoor air from left to right. Inspaces 22, 23 adapted for intake of outdoor air theintake fans beams intermediate partition element 26. By means of theintake fans heat exchangers spaces openings opening 2 for intake of heated indoor air is shown, and in the centre of the lower part theintake fan 6 for the heated indoor air is shown. Thehorizontal arrows heat exchangers intake fans outlet chambers vertical arrow 19 shows the flow direction of the heated indoor air through theheat exchangers intake fan 6. - In FIG. 4 an interior view of the
climate module 29 is shown, which is similar to the climate module shown in FIGS. 1-3, and being provided with asealing cover 30. Also, this type of heat exchanger may be arranged on the inner side of a door of e.g. a radio base station. Heatedair 31 from the various units in the radio base station is drawn into anopening 32 in the upper part of the module and is then exhausted, cooled 33 by outdoor air, from anopening 34 in the lower part of the module, which may be provided with guiding ribs so as to achieve some guidance of the cooled indoor air leaving the module. In FIG. 5 an external view of the box-like module 29 is shown, comprising twocooling air intakes intake fans cooling air 42, and twooutlet chambers cooling air 43, are arranged on the second side. At a lower portion the location of anintake fan 44 is indicated. In FIG. 6 an internal view of the flow directions through theclimate module 29 having thecover 30 removed are shown. Thehorizontal arrows 45, 46 show the flow directions through the heat exchangers 47, 48 of the cooling air flows, from theintake fans outlet chambers vertical arrow 49 shows a flow direction of a heated air flow from the upper inlet opening 32, through the heat exchangers 47, 48, to a lower outlet opening 50, in which theintake fan 44 is arranged. Theintake fans respective cross bars 52 against the cover. In this embodiment, theoutlet chamber 34 for the cooled indoor air requires a greater portion of the lower part of the module, which together with the guiding ribs result in a directed cooling air flow for the interior units accommodated in for instance a radio base station. - In FIG. 7 yet an example of a
climate module 53 adapted for heat exchange is shown, which is to be mounted on e.g. the inner side of a door of a radio base station, so as to cool the various units within the radio base station. At an upper, inner part of the climate module an inlet opening 54, and behind this opening, anintake fan 55 are located for intake of hotindoor air 56, and at a lower part an outlet opening 57 for cooledindoor air 58 is located. In FIG. 8 an external view of the climate module is shown having, at a lower portion, twoinlet openings intake fans 61, 62 for coldoutdoor air 63, 64 and at an upper portion, twooutlet openings outdoor air outdoor air 63, 64 is drawn into the climate module, e.g. by means of the fans through a grate in the door side, which then force the cold air, from two directions, through a heat exchanger, whereupon the outdoor air leaves the heat exchanger and continuous out via theoutlet openings heat exchanger 69, and further on to anupper outlet chamber 72 at the right. Anarrow 73 shows the flow direction of the cold outdoor air from alower intake chamber 74 at the right, through theheat exchanger 69, and further on to anupper outlet chamber 75 at the left. A vertical arrow 76 shows the flow direction of the heated indoor air from theintake fan 55, through theheat exchanger 69, to thelower outlet chamber 57. By letting two cold sides run crosswise through the heat exchanger a great temperature gradient is achieved between the hot and the cold sides of the heat exchanger. - By measuring and registering the temperature of the indoor air and the outdoor air, at the same time as at least one, or both, of the fans for the indoor air and the outdoor is controllable, a
supervisory unit 77 may control, by means of detectingtemperatures 78, 79, the speed of revolution of at least one of the fans, so as to achieve an optimal cooling of the enclosed heat generating electronics. - The invention is of course not limited to the above described, and on the drawing shown embodiments, but can be modified within the scope of the appended claims.
Claims (7)
1. Climate module to be arranged in a wall- or door portion of an outdoor cabinet for cooling heat generating units enclosed in said outdoor cabinet, comprising at least:
a first and a second heat exchanger (18, 21; 47, 48) adapted for heat exchange between internal and external air flows (19, 17, 20; 49, 45, 46), whereby the internal air flow (19; 49) is adapted to be taken from and be returned to the outdoor cabinet, and a first and a second external air flow (17, 20; 45, 46) are adapted to be taken from and be recirculated to outdoor air, characterised in that
the first heat exchanger (18, 47) is arranged in series with the second heat exchanger (21, 48) with respect to the internal air flow (19; 49), and
the first heat exchanger (18, 47) is arranged in parallel with the second heat exchanger (21, 48) with respect to the first and second external air flows (17, 20; 45, 46).
2. Climate module according to claim 1 , wherein the first external air flow (17; 45) is adapted to flow through the first heat exchanger (18; 47), and the second external air flow (20; 46) is adapted to flow through the second heat exchanger (21; 48).
3. Climate module according to claim 2 , wherein the first external air flow (17; 45) is counter-current the second external air flow (20; 46).
4. Climate module according to any of claim 1-3, wherein the internal air flow (19; 49) is adapted to flow vertically through the first and second heat exchanger (18, 21; 47, 48), while the first and second external air flows (17, 20; 45, 46) are adapted to flow horizontally through the first and second heat exchanger (18, 21; 47, 48).
5. Climate module according to any of claim 1-4, wherein
the first heat exchanger (18; 47) comprises an inlet opening (2; 32) for the internal air flow (19; 49), an inlet opening (7; 35) for the first external air flow (17; 45), and an outlet opening (9; 40) for the first external air flow (17; 45), and
the second heat exchanger (21; 48) comprises an outlet opening (4; 34) for the internal air flow (19; 49), an inlet opening (13; 36) for the second external air flow (20; 46) and an outlet opening (11; 41) for the second external air flow (20; 46).
6. Climate module according to any of claim 1-5, wherein at least one fan (6; 44) is provided for the internal air flow (19; 49) for intake to, passage through, and exhaust from, the first and the second heat exchanger (18, 21; 47, 48).
7. Climate module according to any of claim 1-6, wherein at least one fan (15, 16; 37, 38) is arranged for the first and second external air flows (17, 20; 45, 46) for intake to, passage through, and exhaust from, the first and the second heat exchanger (18, 21; 47, 48).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0001406A SE520099C2 (en) | 2000-04-14 | 2000-04-14 | Device for cooling heat generating units |
SE0001406-8 | 2000-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030051864A1 true US20030051864A1 (en) | 2003-03-20 |
Family
ID=20279337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/257,625 Abandoned US20030051864A1 (en) | 2000-04-14 | 2001-04-10 | Device for cooling of heat-generating units |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030051864A1 (en) |
CN (1) | CN1423918A (en) |
AU (1) | AU2001248956A1 (en) |
BR (1) | BR0110045A (en) |
SE (1) | SE520099C2 (en) |
WO (1) | WO2001080615A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090135561A1 (en) * | 2007-11-23 | 2009-05-28 | Cheng-Chung Chang | Electronic device with airflow field |
US20220042690A1 (en) * | 2018-09-18 | 2022-02-10 | Amogreentech Co., Ltd. | Heat exchange unit for ventilation device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030085025A1 (en) * | 2000-10-10 | 2003-05-08 | 3M Innovative Properties Company | Environmental control kit for sealed cabinets |
JP2008241232A (en) * | 2007-02-26 | 2008-10-09 | Denso Corp | Ebullient cooling device |
FI20085412L (en) * | 2008-05-06 | 2009-11-07 | Flaekt Woods Ab | Procedure for using outdoor air to cool room devices |
JP2010251620A (en) * | 2009-04-17 | 2010-11-04 | Sony Corp | Electronic apparatus |
EP2629383B1 (en) | 2012-02-17 | 2014-04-02 | ABB Oy | Enclosure for housing electrical equipment |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535386A (en) * | 1983-05-23 | 1985-08-13 | Allen-Bradley Company | Natural convection cooling system for electronic components |
US5978218A (en) * | 1994-11-24 | 1999-11-02 | Advantest Corp. | Cooling system for IC tester |
US5986883A (en) * | 1997-11-05 | 1999-11-16 | Micron Electronics, Inc. | Apparatus for cooling central processing units in personal computers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2982797A (en) * | 1996-06-04 | 1998-01-05 | David Stephen Hobday | Cooling system for equipment enclosure |
-
2000
- 2000-04-14 SE SE0001406A patent/SE520099C2/en not_active IP Right Cessation
-
2001
- 2001-04-10 WO PCT/SE2001/000802 patent/WO2001080615A1/en active Application Filing
- 2001-04-10 CN CN01808035.9A patent/CN1423918A/en active Pending
- 2001-04-10 US US10/257,625 patent/US20030051864A1/en not_active Abandoned
- 2001-04-10 BR BR0110045-9A patent/BR0110045A/en not_active Withdrawn
- 2001-04-10 AU AU2001248956A patent/AU2001248956A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535386A (en) * | 1983-05-23 | 1985-08-13 | Allen-Bradley Company | Natural convection cooling system for electronic components |
US5978218A (en) * | 1994-11-24 | 1999-11-02 | Advantest Corp. | Cooling system for IC tester |
US5986883A (en) * | 1997-11-05 | 1999-11-16 | Micron Electronics, Inc. | Apparatus for cooling central processing units in personal computers |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090135561A1 (en) * | 2007-11-23 | 2009-05-28 | Cheng-Chung Chang | Electronic device with airflow field |
US20220042690A1 (en) * | 2018-09-18 | 2022-02-10 | Amogreentech Co., Ltd. | Heat exchange unit for ventilation device |
US11982465B2 (en) * | 2018-09-18 | 2024-05-14 | Amogreentech Co., Ltd. | Heat exchange unit for ventilation device |
Also Published As
Publication number | Publication date |
---|---|
AU2001248956A1 (en) | 2001-10-30 |
SE0001406L (en) | 2001-10-15 |
CN1423918A (en) | 2003-06-11 |
BR0110045A (en) | 2003-06-03 |
WO2001080615A1 (en) | 2001-10-25 |
SE520099C2 (en) | 2003-05-27 |
SE0001406D0 (en) | 2000-04-14 |
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Legal Events
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AS | Assignment |
Owner name: EMERSON ENERGY SYSTEMS AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LUNDGREN, ANDERS;REEL/FRAME:013551/0502 Effective date: 20020925 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |