US20130023199A1 - Fan assembly - Google Patents
Fan assembly Download PDFInfo
- Publication number
- US20130023199A1 US20130023199A1 US13/454,170 US201213454170A US2013023199A1 US 20130023199 A1 US20130023199 A1 US 20130023199A1 US 201213454170 A US201213454170 A US 201213454170A US 2013023199 A1 US2013023199 A1 US 2013023199A1
- Authority
- US
- United States
- Prior art keywords
- pieces
- fan
- fan assembly
- sidewalls
- cage
- 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
Links
Images
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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
-
- 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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
Definitions
- the present disclosure relates to fan assemblies, and particularly to a fan assembly with a fan shutter.
- a fan is used for cooling a piece of equipment, such as a computer or a server.
- a fan shutter may cover an air outlet of the fan.
- the fan shutter may include a plurality of pieces to cover the air outlet, and to prevent dust entering the fan and the piece of equipment through the air outlet.
- the plurality of pieces are rotatable when the fan is operating, and a channel may be defined between two adjacent pieces for air flowing through.
- the pieces may be easily over-rotated and collide with each other due to poor engineering. Therefore, an improved fan assembly with a fan shutter may be desired within the art.
- FIG. 1 is an exploded, isometric view of one embodiment of a fan assembly.
- FIG. 2 is similar to FIG. 1 , but viewed from another aspect.
- FIG. 3 is an assembled, isometric view of the fan assembly of FIG. 1 .
- FIG. 4 is similar to FIG. 3 , but viewed from another aspect.
- FIG. 5 is similar to FIG. 3 , but a plurality of pieces is in another state.
- FIG. 1 and FIG. 2 show a fan assembly in accordance with an embodiment including a bracket 20 , a fan 30 and a cage 40 .
- the bracket 20 includes a top plate 21 , a bottom plate 23 , two side plates 25 , and a ventilation plate 27 .
- the top plate 21 is substantially parallel to the bottom plate 23 and perpendicular to the two side plates 25 and the ventilation plate 27
- the two side plates 25 are substantially parallel to each other
- the two side plates 25 are substantially perpendicular to the ventilation plate 27 .
- a receiving space (not labeled), for receiving the fan 30 , is bounded by the top plate 21 , the bottom plate 23 , the two side plates 25 and the ventilation plate 27 .
- Each of four corners of the ventilation plate 27 defines a first mounting hole 271 .
- Each of four corners of the fan 30 defines a second mounting hole 31 corresponding to the first mounting hole 271 .
- the fan 30 defines an air outlet 33 .
- the cage 40 includes a front wall 41 , a top wall 42 , a bottom wall 43 , and two sidewalls 45 .
- the top wall 42 , the bottom wall 43 and the two sidewalls 45 extend from four edges of the front wall 41 .
- the top wall 42 is substantially parallel to the bottom wall 43
- the top wall 42 and the two sidewalls 45 are substantially perpendicular to the front wall 41 .
- the front wall 41 defines an opening 418 .
- a rectangular first cutout (not labeled) is defined in each corner between the top wall 42 and each of the two sidewalls 45 , so as to form an installation piece 401 and a blocking piece 403 .
- the installation piece 401 is substantially perpendicularly connected to the top wall 42 and the blocking piece 403 , the blocking piece 403 is substantially parallel to the top wall 42 and perpendicularly connected to each of the two side walls 45 .
- the opening 418 is round, and a size of the opening 418 is equal to the air outlet 33 .
- the installation piece 401 defines a first pivoting hole 4011 .
- a first securing piece 413 of the front wall 41 is exposed out of the first cutout and defines a first installation hole 4131 .
- Each of the two sidewalls 45 defines a plurality of second pivoting holes 451 .
- a second cutout (not labeled) is defined in each corner between the bottom wall 43 and each of the two sidewalls 45 , so as to form a mounting piece 405 .
- the mounting pieces 405 are slanted, and an obtuse angle is defined between the mounting piece 405 and the bottom wall 43 .
- a second securing piece 415 of the front wall 41 is exposed out of the second cutout and defines a second installation hole 4151 .
- a plurality of limiting pieces 453 extends from each of the two sidewalls 45 and the mounting piece 405 .
- Two restricting pieces 4051 extend towards each other from the mounting piece 405 .
- each of the plurality of limiting pieces 453 and each of the two restricting pieces 4051 are substantially parallel to the top wall 42 , and each of the plurality of limiting pieces 453 is substantially perpendicular to each of the two restricting pieces 4051 .
- a plurality of pieces 47 can be mounted in the cage 40 by a plurality of shafts 46 .
- Each pivot or each of the plurality of shafts 46 is rotatably engaged in opposing two of the first pivoting holes 4011 and opposing two of the plurality of second pivoting holes 451 .
- Each of the plurality of pieces 47 is secured to each of the plurality of shafts 46 .
- a first piece 472 (shown as in FIG. 2 and FIG. 5 ) of the plurality of pieces 47 is located between two of the installation pieces 401 .
- Two second pieces 470 of the plurality of pieces 47 are located between two of the mounting pieces 405 .
- the remainder of the plurality of pieces 47 are located between the two sidewalls 45 .
- Each of the plurality of pieces 47 includes a mounting portion 471 and a free portion 473 .
- the mounting portion 471 is secured to the plurality of shafts 46 .
- the plurality of pieces 47 are all substantially rectangular except the two second pieces 470 , which are substantially trapezoidal.
- Each of the plurality of pieces 47 includes a first side surface 475 and a second side surface 476 opposite to the first side surface 475 .
- the second side surface of the free portion 473 of one of the plurality of pieces 47 abuts the first side surface 475 of the mounting portion 471 of an adjacent one of the plurality of pieces 47 .
- the plurality of pieces 47 cover the opening 418 .
- the plurality of pieces 47 all have the same height, but the surface areas of the one piece 47 and the two pieces 47 are smaller than that of the remainder of the plurality of pieces 47 .
- FIGS. 3-5 show that, in assembly, the fan 30 is received in the bracket 20 , and the second mounting hole 31 is aligned with the first mounting hole 271 .
- the cage 40 is moved towards the fan 30 , until the front wall 41 abuts the fan 30 .
- the first installation hole 4131 and the second installation hole 4151 are aligned with the second mounting hole 31 .
- a locking member (not shown), such as a screw, is inserted into the first mounting hole 271 and the second mounting hole 31 , and the fan 30 is locked in the bracket 20 .
- the cage 40 is secured to the fan 30 by another locking member inserting through the first installation 4131 hole and the second installation hole 4151 .
- Each of the plurality of pieces 47 is substantially parallel to the top wall 42 and the bottom wall 43 .
- One of the two second pieces 470 adjacent to the bottom wall 43 , abuts each of the two restricting pieces 4051 .
- the fan 30 rotates to guide air to flow from the ventilation plate 27 to the plurality of pieces 47 through the air outlet 33 .
- the plurality of pieces 47 are rotated by air pressure towards the top wall 42 and are blocked by the plurality of blocking pieces 453 .
- An air channel 80 is defined between two adjacent pieces 47 for air flowing out of the fan assembly. In this position, each of the plurality of pieces 47 is substantially parallel to the top wall 42 and the bottom wall 43 .
- the fan 30 is switched off, the plurality of pieces 47 rotate back through gravity towards the bottom wall 43 to cover the channel 80 .
- the opening 418 is again covered by the plurality of pieces 47 and the ingress of dust and other contaminants is prevented.
- Each of the plurality of limiting pieces 453 blocks the over-rotation of the plurality of pieces 47 when the plurality of pieces 47 are rotated towards the top wall 42
- each of the two restricting pieces 4051 blocks over-rotation when the plurality of pieces 47 are rotated towards the bottom wall 43 .
- the individual weight of the first piece 472 and the two second pieces 470 are less than the similar weight of each of the others of the plurality of pieces 47 .
- the first piece 472 and the two second pieces 470 are capable of being rotated when a power supply, connected to the fan 30 , is lower than normal. Thus, some air can flow out of the opening 418 , to prevent a temperature of the fan 30 from rising dangerously.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- 1. Technical Field
- The present disclosure relates to fan assemblies, and particularly to a fan assembly with a fan shutter.
- 2. Description of Related Art
- A fan is used for cooling a piece of equipment, such as a computer or a server. A fan shutter may cover an air outlet of the fan. The fan shutter may include a plurality of pieces to cover the air outlet, and to prevent dust entering the fan and the piece of equipment through the air outlet. The plurality of pieces are rotatable when the fan is operating, and a channel may be defined between two adjacent pieces for air flowing through. However, the pieces may be easily over-rotated and collide with each other due to poor engineering. Therefore, an improved fan assembly with a fan shutter may be desired within the art.
- Many aspects of the embodiments can be better understood with reference to the drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is an exploded, isometric view of one embodiment of a fan assembly. -
FIG. 2 is similar toFIG. 1 , but viewed from another aspect. -
FIG. 3 is an assembled, isometric view of the fan assembly ofFIG. 1 . -
FIG. 4 is similar toFIG. 3 , but viewed from another aspect. -
FIG. 5 is similar toFIG. 3 , but a plurality of pieces is in another state. - The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.
-
FIG. 1 andFIG. 2 , show a fan assembly in accordance with an embodiment including abracket 20, afan 30 and acage 40. - The
bracket 20 includes atop plate 21, abottom plate 23, twoside plates 25, and aventilation plate 27. In one embodiment, thetop plate 21 is substantially parallel to thebottom plate 23 and perpendicular to the twoside plates 25 and theventilation plate 27, the twoside plates 25 are substantially parallel to each other, and the twoside plates 25 are substantially perpendicular to theventilation plate 27. A receiving space (not labeled), for receiving thefan 30, is bounded by thetop plate 21, thebottom plate 23, the twoside plates 25 and theventilation plate 27. Each of four corners of theventilation plate 27 defines afirst mounting hole 271. - Each of four corners of the
fan 30 defines asecond mounting hole 31 corresponding to thefirst mounting hole 271. Thefan 30 defines anair outlet 33. - The
cage 40 includes afront wall 41, atop wall 42, abottom wall 43, and twosidewalls 45. Thetop wall 42, thebottom wall 43 and the twosidewalls 45 extend from four edges of thefront wall 41. In one embodiment, thetop wall 42 is substantially parallel to thebottom wall 43, and thetop wall 42 and the twosidewalls 45 are substantially perpendicular to thefront wall 41. Thefront wall 41 defines anopening 418. A rectangular first cutout (not labeled) is defined in each corner between thetop wall 42 and each of the twosidewalls 45, so as to form aninstallation piece 401 and ablocking piece 403. In one embodiment, theinstallation piece 401 is substantially perpendicularly connected to thetop wall 42 and theblocking piece 403, theblocking piece 403 is substantially parallel to thetop wall 42 and perpendicularly connected to each of the twoside walls 45. The opening 418 is round, and a size of the opening 418 is equal to theair outlet 33. Theinstallation piece 401 defines afirst pivoting hole 4011. Afirst securing piece 413 of thefront wall 41 is exposed out of the first cutout and defines afirst installation hole 4131. Each of the twosidewalls 45 defines a plurality ofsecond pivoting holes 451. - A second cutout (not labeled) is defined in each corner between the
bottom wall 43 and each of the twosidewalls 45, so as to form amounting piece 405. Themounting pieces 405 are slanted, and an obtuse angle is defined between themounting piece 405 and thebottom wall 43. A secondsecuring piece 415 of thefront wall 41 is exposed out of the second cutout and defines asecond installation hole 4151. A plurality oflimiting pieces 453 extends from each of the twosidewalls 45 and themounting piece 405. Two restrictingpieces 4051 extend towards each other from themounting piece 405. In one embodiment, each of the plurality oflimiting pieces 453 and each of the tworestricting pieces 4051 are substantially parallel to thetop wall 42, and each of the plurality oflimiting pieces 453 is substantially perpendicular to each of the tworestricting pieces 4051. - A plurality of
pieces 47 can be mounted in thecage 40 by a plurality ofshafts 46. Each pivot or each of the plurality ofshafts 46 is rotatably engaged in opposing two of thefirst pivoting holes 4011 and opposing two of the plurality ofsecond pivoting holes 451. Each of the plurality ofpieces 47 is secured to each of the plurality ofshafts 46. A first piece 472 (shown as inFIG. 2 andFIG. 5 ) of the plurality ofpieces 47 is located between two of theinstallation pieces 401. Twosecond pieces 470 of the plurality ofpieces 47 are located between two of themounting pieces 405. The remainder of the plurality ofpieces 47 are located between the twosidewalls 45. Each of the plurality ofpieces 47 includes amounting portion 471 and afree portion 473. Themounting portion 471 is secured to the plurality ofshafts 46. The plurality ofpieces 47 are all substantially rectangular except the twosecond pieces 470, which are substantially trapezoidal. Each of the plurality ofpieces 47 includes afirst side surface 475 and asecond side surface 476 opposite to thefirst side surface 475. The second side surface of thefree portion 473 of one of the plurality ofpieces 47 abuts thefirst side surface 475 of themounting portion 471 of an adjacent one of the plurality ofpieces 47. The plurality ofpieces 47 cover theopening 418. In one embodiment, the plurality ofpieces 47 all have the same height, but the surface areas of the onepiece 47 and the twopieces 47 are smaller than that of the remainder of the plurality ofpieces 47. -
FIGS. 3-5 show that, in assembly, thefan 30 is received in thebracket 20, and thesecond mounting hole 31 is aligned with thefirst mounting hole 271. Thecage 40 is moved towards thefan 30, until thefront wall 41 abuts thefan 30. Thefirst installation hole 4131 and thesecond installation hole 4151 are aligned with thesecond mounting hole 31. A locking member (not shown), such as a screw, is inserted into thefirst mounting hole 271 and thesecond mounting hole 31, and thefan 30 is locked in thebracket 20. Thecage 40 is secured to thefan 30 by another locking member inserting through thefirst installation 4131 hole and thesecond installation hole 4151. Each of the plurality ofpieces 47 is substantially parallel to thetop wall 42 and thebottom wall 43. One of the twosecond pieces 470, adjacent to thebottom wall 43, abuts each of the two restrictingpieces 4051. - In use, the
fan 30 rotates to guide air to flow from theventilation plate 27 to the plurality ofpieces 47 through theair outlet 33. The plurality ofpieces 47 are rotated by air pressure towards thetop wall 42 and are blocked by the plurality of blockingpieces 453. Anair channel 80 is defined between twoadjacent pieces 47 for air flowing out of the fan assembly. In this position, each of the plurality ofpieces 47 is substantially parallel to thetop wall 42 and thebottom wall 43. When thefan 30 is switched off, the plurality ofpieces 47 rotate back through gravity towards thebottom wall 43 to cover thechannel 80. Thus, theopening 418 is again covered by the plurality ofpieces 47 and the ingress of dust and other contaminants is prevented. Each of the plurality of limitingpieces 453 blocks the over-rotation of the plurality ofpieces 47 when the plurality ofpieces 47 are rotated towards thetop wall 42, and each of the two restrictingpieces 4051 blocks over-rotation when the plurality ofpieces 47 are rotated towards thebottom wall 43. By these means, the plurality ofpieces 47 are always kept in order and cannot strike or interfere with each other. - The individual weight of the
first piece 472 and the twosecond pieces 470 are less than the similar weight of each of the others of the plurality ofpieces 47. Thefirst piece 472 and the twosecond pieces 470 are capable of being rotated when a power supply, connected to thefan 30, is lower than normal. Thus, some air can flow out of theopening 418, to prevent a temperature of thefan 30 from rising dangerously. - It is to be understood, however, that even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110200310.4A CN102892275A (en) | 2011-07-18 | 2011-07-18 | Fan assembly |
CN201110200310.4 | 2011-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130023199A1 true US20130023199A1 (en) | 2013-01-24 |
Family
ID=47535579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/454,170 Abandoned US20130023199A1 (en) | 2011-07-18 | 2012-04-24 | Fan assembly |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130023199A1 (en) |
CN (1) | CN102892275A (en) |
TW (1) | TW201306725A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130017076A1 (en) * | 2011-07-14 | 2013-01-17 | Hon Hai Precision Industry Co., Ltd. | Fan assembly |
WO2014187903A1 (en) * | 2013-05-22 | 2014-11-27 | Stego-Holding Gmbh | Fan holder for a fan, in particular of a switch cabinet |
USD761411S1 (en) | 2014-04-17 | 2016-07-12 | Stego-Holding Gmbh | Fan |
US10165696B1 (en) * | 2017-08-10 | 2018-12-25 | Adtran, Inc. | Removable module with spring latch |
US20190234647A1 (en) * | 2018-01-30 | 2019-08-01 | Quanta Computer Inc. | Louver integrated design for fan module |
US20220210944A1 (en) * | 2020-12-24 | 2022-06-30 | Dell Products, Lp | Information handling system with a tandem fan package |
US20220377936A1 (en) * | 2021-05-21 | 2022-11-24 | Runbeck Election Services Inc. | Cooling system for a printer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110096121B (en) * | 2018-01-31 | 2023-02-03 | 富联精密电子(天津)有限公司 | Fan bracket and fan device adopting same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080151490A1 (en) * | 2006-12-22 | 2008-06-26 | Hon Hai Precision Industry Co., Ltd. | Airflow-guiding device |
US20110141687A1 (en) * | 2009-12-14 | 2011-06-16 | Hong Fu Jin Precision (Shenzhen) Co., Ltd. | Airflow shielding device and computer system employing the airflow shielding device |
-
2011
- 2011-07-18 CN CN201110200310.4A patent/CN102892275A/en active Pending
- 2011-07-21 TW TW100125731A patent/TW201306725A/en unknown
-
2012
- 2012-04-24 US US13/454,170 patent/US20130023199A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080151490A1 (en) * | 2006-12-22 | 2008-06-26 | Hon Hai Precision Industry Co., Ltd. | Airflow-guiding device |
US20110141687A1 (en) * | 2009-12-14 | 2011-06-16 | Hong Fu Jin Precision (Shenzhen) Co., Ltd. | Airflow shielding device and computer system employing the airflow shielding device |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130017076A1 (en) * | 2011-07-14 | 2013-01-17 | Hon Hai Precision Industry Co., Ltd. | Fan assembly |
KR102308225B1 (en) | 2013-05-22 | 2021-10-06 | 스테고-홀딩 쥐엠비에이취 | Fan holder for a fan, in particular of a switch cabinet |
KR20160013926A (en) * | 2013-05-22 | 2016-02-05 | 스테고-홀딩 쥐엠비에이취 | Fan holder for a fan, in particular of a switch cabinet |
US20160105996A1 (en) * | 2013-05-22 | 2016-04-14 | Stego-Holding Gmbh | Fan holder for a fan, in particular of a switch cabinet |
WO2014187903A1 (en) * | 2013-05-22 | 2014-11-27 | Stego-Holding Gmbh | Fan holder for a fan, in particular of a switch cabinet |
RU2672661C2 (en) * | 2013-05-22 | 2018-11-19 | Штего-Холдинг Гмбх | Fan holder for fan, particularly for electrical cabinet |
AU2014270389B2 (en) * | 2013-05-22 | 2018-05-17 | Stego-Holding Gmbh | Fan holder for a fan, in particular of a switch cabinet |
USD872249S1 (en) | 2014-04-17 | 2020-01-07 | Stego-Holding Gmbh | Fan |
USD816825S1 (en) | 2014-04-17 | 2018-05-01 | Stego-Holding Gmbh | Fan |
USD812733S1 (en) | 2014-04-17 | 2018-03-13 | Stego-Holding Gmbh | Fan |
USD761411S1 (en) | 2014-04-17 | 2016-07-12 | Stego-Holding Gmbh | Fan |
US10165696B1 (en) * | 2017-08-10 | 2018-12-25 | Adtran, Inc. | Removable module with spring latch |
US20190234647A1 (en) * | 2018-01-30 | 2019-08-01 | Quanta Computer Inc. | Louver integrated design for fan module |
US20220210944A1 (en) * | 2020-12-24 | 2022-06-30 | Dell Products, Lp | Information handling system with a tandem fan package |
US11457543B2 (en) * | 2020-12-24 | 2022-09-27 | Dell Products L.P. | Information handling system with a tandem fan package |
US20220377936A1 (en) * | 2021-05-21 | 2022-11-24 | Runbeck Election Services Inc. | Cooling system for a printer |
Also Published As
Publication number | Publication date |
---|---|
TW201306725A (en) | 2013-02-01 |
CN102892275A (en) | 2013-01-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LI, HAN-YU;GUO, LIAN-MING;WU, ZHI-RONG;AND OTHERS;REEL/FRAME:028094/0555 Effective date: 20120420 Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LI, HAN-YU;GUO, LIAN-MING;WU, ZHI-RONG;AND OTHERS;REEL/FRAME:028094/0555 Effective date: 20120420 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |