US10385876B2 - Fan frame and heat dissipation fan having the same - Google Patents

Fan frame and heat dissipation fan having the same Download PDF

Info

Publication number
US10385876B2
US10385876B2 US15/218,288 US201615218288A US10385876B2 US 10385876 B2 US10385876 B2 US 10385876B2 US 201615218288 A US201615218288 A US 201615218288A US 10385876 B2 US10385876 B2 US 10385876B2
Authority
US
United States
Prior art keywords
disc
housing
damping
ribs
heat dissipation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US15/218,288
Other languages
English (en)
Other versions
US20170146032A1 (en
Inventor
Hsien-Chou Lin
Xiao-Guang Ma
Yung-Ping Lin
Chien-Nan Cheng
Zheng Luo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Champ Tech Optical Foshan Corp
Original Assignee
Champ Tech Optical Foshan Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Champ Tech Optical Foshan Corp filed Critical Champ Tech Optical Foshan Corp
Assigned to FOXCONN TECHNOLOGY CO., LTD., CHAMP TECH OPTICAL (FOSHAN) CORPORATION reassignment FOXCONN TECHNOLOGY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHENG, CHIEN-NAN, LIN, HSIEN-CHOU, LIN, YUNG-PING, LUO, ZHENG, MA, Xiao-guang
Assigned to CHAMP TECH OPTICAL (FOSHAN) CORPORATION reassignment CHAMP TECH OPTICAL (FOSHAN) CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHAMP TECH OPTICAL (FOSHAN) CORPORATION, FOXCONN TECHNOLOGY CO., LTD.
Publication of US20170146032A1 publication Critical patent/US20170146032A1/en
Application granted granted Critical
Publication of US10385876B2 publication Critical patent/US10385876B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0646—Details of the stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/40—Organic materials
    • F05B2280/4003—Synthetic polymers, e.g. plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/40—Organic materials
    • F05B2280/4004—Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/40—Organic materials
    • F05B2280/401—Silicon polymers

Definitions

  • the subject matter relates to a heat dissipation fan, and particularly relates to a fan frame and a heat dissipation fan having the same.
  • a traditional fan includes a stator, a rotor, and a fan frame receiving the stator and the rotor.
  • the rotor is driven by a motor to rotate relative to the stator, therefore dissipating heat generated from electronic elements.
  • vibration and noise can be caused when the fan is working and stability of a heat sink including the fan is reduced.
  • FIG. 1 is an assembly schematic view of a heat dissipation fan in accordance with a first exemplary embodiment of the present disclosure.
  • FIG. 2 is a cross-section view of the heat dissipation fan in FIG. 1 , taken along the line II-II.
  • FIG. 3 is cross-section view of a heat dissipation fan in accordance with a second exemplary embodiment of the present disclosure.
  • FIG. 4 is cross-section view of a heat dissipation fan in accordance with a third exemplary embodiment of the present disclosure.
  • FIG. 5 is cross-section view of a heat dissipation fan in accordance with a fourth exemplary embodiment of the present disclosure.
  • FIG. 6 is cross-section view of a heat dissipation fan in accordance with a fifth exemplary embodiment of the present disclosure.
  • FIG. 7 is cross-section view of a heat dissipation fan in accordance with a sixth exemplary embodiment of the present disclosure.
  • Coupled is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections.
  • the connection can be such that the objects are permanently connected or releasably connected.
  • substantially is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact.
  • substantially cylindrical means that the object resembles a cylinder, but can have one or more deviations from a true cylinder.
  • comprising when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like.
  • a heat dissipation fan 1 of a first exemplary embodiment of the present disclosure includes a fan frame 10 and an impeller 20 received in the fan frame 10 .
  • the heat dissipation fan 1 may be an aerofoil fan.
  • the fan frame 10 includes a housing 11 and a base 12 surrounded by the housing 11 .
  • the housing 11 is substantially cuboid-shaped.
  • the housing 11 is hollow.
  • the housing 11 includes a first end face 111 and a second end face 112 .
  • the first end face 111 and the second end face 112 are opposite to each other.
  • the impeller 20 is received between the first end face 111 and the second end face 112 .
  • the base 12 is arranged adjacent to the second end face 112 of the housing 11 .
  • a bottom face of the base 12 is coplanar with the second end face 112 .
  • the base 12 includes a disc 121 , a plurality of ribs 122 , and a hollow tube 123 .
  • the disc 121 is positioned at the center of the base 12 .
  • the ribs 122 interconnect the disc 121 and housing 11 .
  • the hollow tube 123 is formed at the center of the disc 121 .
  • the disc 121 is substantially cylindrical, and a cross-section of the disc 121 is substantially U-shaped.
  • the disc 121 is hollow.
  • a hole 1213 is defined at the center of the disc 121 .
  • the disc 121 includes an inner surface 1211 and an outer surface 1212 .
  • the inner surface 1211 is cylindrical and defines the hole 1213 .
  • the inner surface 1211 is an inner wall of the hole 1213 .
  • the outer surface 1212 is a periphery of the disc 121 .
  • the ribs 122 are formed on the outer surface 1212 of the disc 121 .
  • the ribs 122 extend outwards from the outer surface 1212 of the disc 121 radially until interconnecting with an inner wall of the housing 11 .
  • Each rib 122 is substantially a thick and straight line.
  • the ribs 122 are positioned adjacent to the second end face 112 of the housing 11 .
  • the hollow tube 123 is formed on a top surface of the disc 121 .
  • the hollow tube 123 extends from a center part of the top surface of the disc 121 upwards.
  • a channel 1231 is defined at the center of the hollow tube 123 .
  • the channel 1231 of the hollow tube 123 and the hole 1213 of the disc 121 are used for fixing and carrying the impeller 20 .
  • the hollow tube 123 has a rotary connection with the impeller 20 .
  • the fan frame 10 can further include a buffer member 13 .
  • the buffer member 13 is made of damping material.
  • the damping material may be silicon resin, rubber, plastic, sponge and so on.
  • the buffer member 13 includes a first buffer element 131 .
  • the first buffer element 131 is embedded in the disc 121 .
  • the first buffer element 131 is substantially annular.
  • the first buffer element 131 is located between the inner surface 1211 and the outer surface 1212 of the disc 121 .
  • the first buffer element 131 is adjacent to the outer surface 1212 .
  • a distance between the first buffer element 131 and the outer surface 1212 is less than a distance between the first buffer element 131 and the inner surface 1211 .
  • the impeller 20 rotates, causing vibrations in the heat dissipation fan 1 .
  • the buffer member 13 is embedded in the fan frame 10 , and is located a transmitting path of the vibrations caused by the impeller 20 .
  • the housing 11 is thus isolated from the vibrations. Since the housing 11 is used for connecting other cooling elements and is isolated from the vibration during operation, the connection between the housing 11 and the cooling elements is protected.
  • the first buffer element 131 may have other shapes, such as rectangular frame, polygonal and so on. It is not limited to being annular.
  • the quantity of the first buffer elements 131 is one. In other exemplary embodiments, the quantity of the first buffer elements 131 may be at least two.
  • FIG. 3 a cross-section of the heat dissipation fan 1 in accordance with a second exemplary embodiment of the present disclosure is shown.
  • the buffer member 13 includes two first buffer elements 131 .
  • the two first buffer elements 131 are substantially annular.
  • the two first buffer elements 131 are concentrically arranged.
  • the two first buffer elements 131 are isolated from each other.
  • the buffer member 13 further includes a plurality of second buffer elements 132 .
  • the quantity of the second buffer elements 132 may be one, two or three.
  • the second buffer elements 132 are embedded in the ribs 122 .
  • the second buffer elements 132 concentrically surround the first buffer elements 131 .
  • the second buffer element 132 may be positioned at connecting portions of the ribs 122 which are connected to the disc 121 (as shown in FIG. 4 ).
  • the second buffer element 132 may be positioned at connecting portions of the ribs 122 which are connected to the housing 11 (as shown in FIG. 5 ).
  • the second buffer element 132 may be positioned at central portions of the ribs 122 which are between the housing 11 and the disc 121 (as shown in FIG. 6 ). The parts of each second buffer element 132 embedded in the ribs 122 are located at one circumference.
  • the buffer member 13 may further includes at least a third buffer element 133 .
  • the third buffer element 133 is embedded in the housing 11 .
  • a shape of the third buffer element 133 is substantially the same as the housing 11 .
  • a quantity of the third buffer elements 133 is one.
  • the third buffer element 133 is also substantially a rectangular ring.
  • the third buffer element 133 is positioned above and outside the first buffer elements 131 and the second buffer elements 132 .
  • the third buffer element 133 may also be positioned to surround the first buffer elements 131 and the second buffer elements 132 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US15/218,288 2015-11-24 2016-07-25 Fan frame and heat dissipation fan having the same Active 2037-10-24 US10385876B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201510823982.9 2015-11-24
CN201510823982 2015-11-24
CN201510823982.9A CN106762844B (zh) 2015-11-24 2015-11-24 扇框及具有该扇框的散热风扇

Publications (2)

Publication Number Publication Date
US20170146032A1 US20170146032A1 (en) 2017-05-25
US10385876B2 true US10385876B2 (en) 2019-08-20

Family

ID=58721577

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/218,288 Active 2037-10-24 US10385876B2 (en) 2015-11-24 2016-07-25 Fan frame and heat dissipation fan having the same

Country Status (3)

Country Link
US (1) US10385876B2 (zh)
CN (1) CN106762844B (zh)
TW (1) TWI606185B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190353177A1 (en) * 2018-05-21 2019-11-21 Asia Vital Components Co., Ltd. Fan frame seat and fan thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10285306B1 (en) * 2017-11-29 2019-05-07 Listan Gmbh & Co. Kg Power supply
US10362711B2 (en) 2017-11-29 2019-07-23 Listan Gmbh & Co. Kg Fan mounting arrangement in a power supply
TWI698070B (zh) * 2019-05-10 2020-07-01 黃思倫 具有柵欄式定子的外盤式電動機散熱裝置
DE102022110439A1 (de) * 2022-04-28 2023-11-02 Alphacool International Gmbh Lüfter zur Erzeugung eines kühlenden Luftstroms

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1415372A (en) 1972-02-10 1975-11-26 Etri Sa Electric motor-fan unit
US20050207117A1 (en) * 2002-05-21 2005-09-22 Dell Products L.P. Method and system for vibration dampening
US20080180911A1 (en) 2007-01-25 2008-07-31 Sony Corporation Fan motor apparatus and electronic apparatus
CN101349289A (zh) 2007-07-16 2009-01-21 台达电子工业股份有限公司 风扇及其扇框

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568243A (en) * 1981-10-08 1986-02-04 Barry Wright Corporation Vibration isolating seal for mounting fans and blowers
TW200907181A (en) * 2007-08-15 2009-02-16 Delta Electronics Inc Fan and its bearing bracket
CN101545500B (zh) * 2008-03-26 2011-03-23 富准精密工业(深圳)有限公司 扇框及具有该扇框的散热风扇

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1415372A (en) 1972-02-10 1975-11-26 Etri Sa Electric motor-fan unit
US20050207117A1 (en) * 2002-05-21 2005-09-22 Dell Products L.P. Method and system for vibration dampening
US20080180911A1 (en) 2007-01-25 2008-07-31 Sony Corporation Fan motor apparatus and electronic apparatus
CN101304198A (zh) 2007-01-25 2008-11-12 索尼株式会社 风机马达装置及电子装置
CN101349289A (zh) 2007-07-16 2009-01-21 台达电子工业股份有限公司 风扇及其扇框

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190353177A1 (en) * 2018-05-21 2019-11-21 Asia Vital Components Co., Ltd. Fan frame seat and fan thereof

Also Published As

Publication number Publication date
TW201719024A (zh) 2017-06-01
US20170146032A1 (en) 2017-05-25
TWI606185B (zh) 2017-11-21
CN106762844B (zh) 2020-05-26
CN106762844A (zh) 2017-05-31

Similar Documents

Publication Publication Date Title
US10385876B2 (en) Fan frame and heat dissipation fan having the same
US9859773B2 (en) Ceiling fan motor
CN102678585B (zh) 送风风扇
US20130259692A1 (en) Fan with metallic hub and plastic impeller and method for manufacturing such fan
US20190120243A1 (en) Fan impeller structure and cooling fan thereof
US20100059210A1 (en) Fan impeller and heat dissipating device having the same
US9651051B2 (en) Series fan structure with multistage frame body
US9303657B2 (en) Fan and motor bearing heat dissipation structure thereof
US9435348B2 (en) Fan structure
US20160186981A1 (en) Lamp module
TW201413115A (zh) 離心式散熱扇
CN105896802A (zh) 一种电机端盖及设有该端盖的电机
US9267545B2 (en) Bearing retaining structure
US20220190673A1 (en) Heat transfer array and the electric machine made therewith
US20180231007A1 (en) Heat dissipating fan
CN106194844B (zh) 复合式风扇
US20120171024A1 (en) Bearing holding structure and fan module using same
US20170002837A1 (en) Fan vibration damping structure and fan with the vibration damping structure
JP2020072642A (ja) モータ及び減速装置
CN108443233B (zh) 具有减振结构的风扇框体及其风扇
US10076056B2 (en) Cooling fan and electronic device having the same
US9657741B2 (en) Magnet case and rotor incorporating the same
CN107781226B (zh) 风扇及其扇框结构
US20130216404A1 (en) Bladeless fan structure
US9115723B2 (en) Cooling fan with impeller

Legal Events

Date Code Title Description
AS Assignment

Owner name: FOXCONN TECHNOLOGY CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIN, HSIEN-CHOU;MA, XIAO-GUANG;LIN, YUNG-PING;AND OTHERS;REEL/FRAME:039242/0065

Effective date: 20160721

Owner name: CHAMP TECH OPTICAL (FOSHAN) CORPORATION, CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIN, HSIEN-CHOU;MA, XIAO-GUANG;LIN, YUNG-PING;AND OTHERS;REEL/FRAME:039242/0065

Effective date: 20160721

AS Assignment

Owner name: CHAMP TECH OPTICAL (FOSHAN) CORPORATION, CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHAMP TECH OPTICAL (FOSHAN) CORPORATION;FOXCONN TECHNOLOGY CO., LTD.;REEL/FRAME:041585/0635

Effective date: 20170208

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4