KR20110001472U - Grinder of valve seat - Google Patents

Grinder of valve seat Download PDF

Info

Publication number
KR20110001472U
KR20110001472U KR2020090010220U KR20090010220U KR20110001472U KR 20110001472 U KR20110001472 U KR 20110001472U KR 2020090010220 U KR2020090010220 U KR 2020090010220U KR 20090010220 U KR20090010220 U KR 20090010220U KR 20110001472 U KR20110001472 U KR 20110001472U
Authority
KR
South Korea
Prior art keywords
valve
coupling rod
seat surface
coupled
glass
Prior art date
Application number
KR2020090010220U
Other languages
Korean (ko)
Other versions
KR200458058Y1 (en
Inventor
김문재
김인수
이재철
조연선
Original Assignee
주식회사 한국가스기술공사
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 주식회사 한국가스기술공사 filed Critical 주식회사 한국가스기술공사
Priority to KR2020090010220U priority Critical patent/KR200458058Y1/en
Publication of KR20110001472U publication Critical patent/KR20110001472U/en
Application granted granted Critical
Publication of KR200458058Y1 publication Critical patent/KR200458058Y1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
    • B24B15/04—Machines or devices designed for grinding seat surfaces; Accessories therefor on valve members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/08—Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/11—Lapping tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

밸브의 크기 및 연마재의 입자크기에 따라 구성부품들을 교환하여 사용할 수 있도록 한 밸브시트면 연마장치에 관한 것이다.The present invention relates to a valve seat surface polishing apparatus, which allows components to be used interchangeably according to the size of the valve and the particle size of the abrasive.

이 연마장치는 상단에 핸들(31)이 형성된 결합봉(30)과, 결합봉(30)에 결합되는 몸체블럭(60)과, 결합봉(30)에 몸체블럭(60)과 동심으로 결합되며 시트면(110)에 안착되어 연마시키는 래핑글래스(70)와, 결합봉(30)에 결합되어 래핑글래스(70)를 고정시키며 환형시트면(110)의 내측으로 진입되는 홀더스탠드(80)와, 결합봉(30)에 결합되어 몸체블럭(60), 래핑글래스(70) 및 홀더스탠드(80)를 고정시키는 상/하부 고정너트(41)(42)를 구비한다.The polishing apparatus is coupled to the coupling rod 30 formed on the top handle 31, the body block 60 is coupled to the coupling rod 30, the coupling rod 30 and the body block 60 concentrically Wrapping glass 70 is seated on the seat surface 110 and polished, and the holder stand 80 is coupled to the coupling rod 30 to fix the wrapping glass 70 and enters the inner side of the annular sheet surface 110 and The upper and lower fixing nuts 41 and 42 are coupled to the coupling rod 30 to fix the body block 60, the wrapping glass 70, and the holder stand 80.

이 연마장치는 밸브의 크기 또는 연마재의 입자크기에 따라 래핑글래스, 몸체블럭, 웨이트 및 홀더스탠드를 결합봉에 교환하여 결합시켜 사용함으로써, 다양한 무게 및 크기에 대응되는 밸브의 시트면을 연마할 수 있게 한다.This polishing device can be used to polish the seat surface of the valve corresponding to various weights and sizes by replacing the wrapping glass, the body block, the weight, and the holder stand with the coupling rods according to the size of the valve or the particle size of the abrasive. To be.

밸브, 시트면, 연마, 래핑글래스, 웨이트 Valve, seat surface, polished, wrapped glass, weight

Description

밸브시트면 연마장치{grinder of valve seat}Valve seat surface grinding device {grinder of valve seat}

본 고안은 밸브시트면 연마장치에 관한 것으로서, 특히 밸브의 크기 및 연마재의 입자크기에 따라 구성부품들을 교환하여 사용할 수 있도록 한 밸브시트면 연마장치에 관한 것이다.The present invention relates to a valve seat surface polishing apparatus, and more particularly, to a valve seat surface polishing apparatus which can be used to replace the components according to the size of the valve and the particle size of the abrasive.

일반적으로 안전밸브는 가스, 공기, 스팀 등의 유체배관에 설치되어 관내 이상압력이 발생할 때 이상압력을 외부로 방출시킴으로써 기기와 설비를 보호시키는 밸브이다.In general, a safety valve is installed in a fluid pipe such as gas, air, steam, and the like to protect the equipment and equipment by releasing the abnormal pressure to the outside when an abnormal pressure in the pipe occurs.

도 1은 이러한 안전밸브의 단면을 나타낸 것으로서, 이는 가압스프링(12)의 스프링력으로 디스크(11)와 시트(14)가 면접촉에 의하여 기밀상태를 유지하나, 관(20)내에서 이상압력이 발생하면 가압스프링(12)을 압축시키면서 디스크(11)가 상승되어 유체가 출구(13)를 통하여 외부로 방출되는 구조로 되어 있다.1 is a cross-sectional view of such a safety valve, which is a spring force of the pressure spring 12, the disk 11 and the seat 14 to maintain the airtight state by the surface contact, but the abnormal pressure in the tube 20 When this occurs, the disk 11 is raised while compressing the pressure spring 12 so that the fluid is discharged to the outside through the outlet 13.

상기와 같은 안전밸브(10)는 디스크(11)와 시트(14)가 면접촉에 의하여 기밀상태를 유지하기 위해 필요한 높은 정밀도의 접합면이 요구된다.The safety valve 10 as described above requires a high precision joint surface necessary for maintaining the airtight state of the disk 11 and the seat 14 by surface contact.

종래에는 안전밸브의 시트면의 기밀성을 유지하기 위하여 주철로 가공한 연마용 기구면에 연마재를 바른 후 밸브의 시트면에 안착시켜 기구를 회전시키거나, 기구를 고정한 채로 안전밸브를 회전시켜 기구면과 시트면 사이에 존재하는 연마재의 마모에 의하여 시트면을 연마하여 왔다.Conventionally, in order to maintain the airtightness of the seat surface of the safety valve, the abrasive is applied to the polishing tool surface processed with cast iron and then seated on the seat surface of the valve to rotate the device, or the safety valve is rotated while the device is fixed. The sheet surface has been polished by abrasion of the abrasive present between the sheet surface and the sheet surface.

그러나 상기와 같은 종래의 주철 연마기구는 안전밸브의 크기에 따라 각각의 크기에 맞는 연마기구를 다양하게 준비하여야 하며, 수회 사용한 연마기구는 연마면이 거칠게 되어 연마효율이 저하되게 된다.However, the conventional cast iron polishing apparatus as described above has to prepare a variety of polishing mechanisms for each size according to the size of the safety valve, the polishing apparatus used several times the polishing surface is roughened to reduce the polishing efficiency.

본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 안전밸브의 크기에 따라 다양한 크기로 간단하게 변환하여 사용할 수 있도록 한 밸브시트면 연마장치를 제공하는 데 그 목적이 있다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a valve seat surface polishing apparatus that can be easily converted to various sizes according to the size of the safety valve.

상기 목적을 달성하는 본 고안은 환형의 시트면에 대해 밀착 또는 이탈되어 밸브를 개폐시키는 디스크를 구비하는 밸브의 시트면 연마장치에 있어서,The present invention to achieve the above object is in the seat surface polishing apparatus of the valve having a disk for opening and closing the valve by being in close contact with or separated from the annular seat surface,

상단에 핸들이 형성된 결합봉과,A coupling rod with a handle formed at the top,

상기 결합봉에 결합되는 몸체블럭과,A body block coupled to the coupling rod;

상기 결합봉에 상기 몸체블럭과 동심으로 결합되며 상기 시트면에 안착되어 연마시키는 래핑글래스와,Wrapping glass coupled to the coupling bar concentrically with the body block and seated on the seat surface and polished,

상기 결합봉에 결합되어 상기 래핑글래스를 고정시키며 상기 환형시트면의 내측으로 진입되는 홀더스탠드와,A holder stand coupled to the coupling rod to fix the lapping glass and enter the inner side of the annular sheet;

상기 결합봉에 결합되어 상기 몸체블럭, 래핑글래스 및 홀더스탠드를 고정시키는 상/하부 고정너트를 구비하여 된 것을 특징으로 한다.It is characterized in that it is coupled to the coupling rod provided with an upper / lower fixing nut for fixing the body block, the wrapping glass and the holder stand.

또한, 본 고안 연마장치는 상기 결합봉에 결합되어 상기 래핑글래스를 시트면에 가압시키는 웨이트를 더 구비하여 된 것을 특징으로 한다.In addition, the present invention polishing apparatus is characterized in that it is further provided with a weight coupled to the coupling rod to press the wrapping glass to the sheet surface.

또한, 본 고안 장치는 상기 래핑글래스가 상기 시트면에 안착된 상태에서 상기 래핑글래스와 밸브를 상대회전시키는 회전수단을 더 구비한 것을 특징으로 한 다.In addition, the device of the present invention is characterized in that it further comprises a rotating means for relatively rotating the lapping glass and the valve in a state that the lapping glass is seated on the seat surface.

본 고안 연마장치는 밸브의 크기 또는 연마재의 입자크기에 따라 래핑글래스, 몸체블럭, 웨이트 및 홀더스탠드를 결합봉에 교환하여 결합시켜 사용함으로써, 다양한 무게 및 크기에 대응되는 밸브의 시트면을 연마할 수 있게 한다.The polishing apparatus of the present invention can be used to polish the seat surface of the valve corresponding to various weights and sizes by using a combination of lapping glass, body block, weight, and holder stand in combination with the coupling rod according to the size of the valve or the particle size of the abrasive. To be able.

또한, 연마재의 입자의 크기에 따라서 웨이트(50)를 교환해 가면서 연마를 실시함으로써 적정하중에 의한 연마실시로 높은 정밀도의 가공면을 만들어 낼 수 있다.In addition, by performing polishing while exchanging the weight 50 in accordance with the size of the particles of the abrasive, it is possible to produce a highly accurate working surface by polishing by appropriate load.

본 고안 실시예의 연마장치가 적용되는 안전밸브는 도 1의 구조와 동일하므로 안전밸브에 대한 상세한 설명은 생략한다.Safety valve to which the polishing apparatus of the present invention is applied is the same as the structure of Figure 1, so a detailed description of the safety valve will be omitted.

본 고안 실시예의 연마장치를 나타낸 도 2 및 도 3을 참조하면, 이는 상단에 핸들(31)이 형성된 결합봉(30)과, 상기 결합봉(30)에 결합되는 몸체블럭(60)과, 상기 결합봉(30)에 상기 몸체블럭(60)과 동심으로 결합되며 상기 시트면(110)에 안착되어 연마시키는 래핑글래스(70)와, 상기 결합봉(30)에 결합되어 상기 래핑글래스(70)를 고정시키며 상기 환형시트면(110)의 내측으로 진입되는 홀더스탠드(80)와, 상기 결합봉(30)에 결합되어 상기 몸체블럭(60), 래핑글래스(70) 및 홀더스탠드(80)를 고정시키는 상/하부 고정너트(41)(42)를 구비한다.2 and 3 showing the polishing apparatus of the present invention, it is a coupling rod 30, the handle 31 is formed on the top, the body block 60 is coupled to the coupling rod 30, and The wrapping glass 70 coupled to the coupling rod 30 concentrically with the body block 60 and seated on the seat surface 110 and polished, and coupled to the coupling rod 30 to wrap the glass 70. And fixed to the holder stand 80 is entered into the inside of the annular sheet surface 110, the coupling rod 30 is coupled to the body block 60, the wrapping glass 70 and the holder stand 80 Upper and lower fixing nuts 41 and 42 for fixing are provided.

또한, 상기 결합봉(30)에는 상기 래핑글래스(70)를 시트면(110)에 가압시키는 웨이트(50)가 더 구비된다. 이때 웨이트(50)는 연마재의 입자크기에 따라 하중 이 다른 웨이트들이 선택되어 결합된다.In addition, the coupling rod 30 is further provided with a weight 50 for pressing the wrapping glass 70 to the seat surface 110. At this time, the weight 50 is selected to combine the weights of different loads according to the particle size of the abrasive.

상기와 같은 구성의 연마장치는 다음과 같이 사용되어 진다.The polishing apparatus of the above construction is used as follows.

먼저, 밸브(100)의 크기 및 연마재의 종류에 맞춰서 각 구성부품들의 크기 및 하중을 선택하여 결합봉(30)에 결합시킨다. 즉, 결합봉(30)에 상부 고정너트(41), 웨이트(50), 몸체블럭(60), 래핑글래스(70), 홀더스탠드(80) 및 하부고정너트(41)를 순차적으로 결합시킨다.First, in accordance with the size of the valve 100 and the type of abrasive, the size and load of each component are selected and coupled to the coupling rod 30. That is, the upper fixing nut 41, the weight 50, the body block 60, the wrapping glass 70, the holder stand 80 and the lower fixing nut 41 are sequentially coupled to the coupling rod 30.

이때 홀더스탠드(80)는 래핑글래스(70)보다 직경이 작으며, 래핑글래스(70)의 가장자리면은 외부로 노출되어서 연마면으로 작용한다.At this time, the holder stand 80 is smaller in diameter than the wrapping glass 70, the edge surface of the wrapping glass 70 is exposed to the outside to act as a polishing surface.

상기와 같이 결합된 연마장치는 도 2에 도시된 바와 같이, 래핑글래스(70)에 연마재를 도포시키고 밸브(100)에 진입시켜서 래핑글래스(70)의 가장자리 저면이 시트면(110)에 안착되도록 한다.As shown in FIG. 2, the polishing apparatus combined as described above applies the abrasive to the wrapping glass 70 and enters the valve 100 so that the bottom edge of the wrapping glass 70 is seated on the seat surface 110. do.

상기와 같이 밸브(100)에 연마장치가 결합되면, 핸들(31)을 회전시키면서 시트면(110)을 연마시키거나, 밸브(100)를 모터에 의해 회전되는 회전테이블(미도시)에 장착시킨 상태에서 밸브(100)를 회전시키게 되면 시트면(110)에 안착된 래핑글래스(70)와의 상대회전에 의해서 시트면(110)이 연마되게 된다.When the polishing apparatus is coupled to the valve 100 as described above, the seat surface 110 is polished while the handle 31 is rotated, or the valve 100 is mounted on a rotating table (not shown) rotated by a motor. When the valve 100 is rotated in the state, the seat surface 110 is polished by a relative rotation with the wrapping glass 70 seated on the seat surface 110.

연마작업이 완료되면 핸들(31)을 파지하여 연마장치를 밸브(100)로부터 분리시킬 수 있게 되며, 또한 연마재의 입자크기 및 밸브(100)의 크기에 따라 웨이트(50) 및 몸체블럭(60)의 하중 및 크기가 다른 것을 교환하여 다른 밸브의 시트면을 연마시킬 수 있게 된다.When the polishing operation is completed, the handle 31 can be gripped to separate the polishing apparatus from the valve 100, and the weight 50 and the body block 60 according to the particle size of the abrasive and the size of the valve 100. It is possible to polish the seat face of the other valves by exchanging different loads and sizes.

또한, 연마재의 입자의 크기에 따라서 웨이트(50)를 교환해 가면서 연마를 실시함으로써 적정하중에 의한 연마실시로 높은 정밀도의 가공면을 만들어 낼 수 있다.In addition, by performing polishing while exchanging the weight 50 in accordance with the size of the particles of the abrasive, it is possible to produce a highly accurate working surface by polishing by appropriate load.

도 1은 통상의 안전밸브를 나타낸 단면도,1 is a cross-sectional view showing a conventional safety valve,

도 2는 본 고안 연마장치가 장착된 밸브를 나타낸 단면도,Figure 2 is a cross-sectional view showing a valve equipped with the present invention polishing device,

도 3은 본 고안 실시예의 연마장치를 나타낸 분리도이다.3 is an exploded view showing a polishing apparatus of an embodiment of the present invention.

Claims (3)

환형의 시트면에 대해 밀착 또는 이탈되어 밸브를 개폐시키는 디스크를 구비하는 밸브의 시트면 연마장치에 있어서,In the seat surface polishing apparatus of the valve having a disk for opening and closing the valve in close contact with or separated from the annular seat surface, 상단에 핸들(31)이 형성된 결합봉(30)과,Coupling rod 30 formed with a handle 31 on the top, 상기 결합봉(30)에 결합되는 몸체블럭(60)과,Body block 60 is coupled to the coupling rod 30, 상기 결합봉(30)에 상기 몸체블럭(60)과 동심으로 결합되며 상기 시트면(110)에 안착되어 연마시키는 래핑글래스(70)와,Wrapping glass 70 is coupled to the coupling rod 30 concentrically with the body block 60 and seated on the seat surface 110 and polished, 상기 결합봉(30)에 결합되어 상기 래핑글래스(70)를 고정시키며 상기 환형시트면(110)의 내측으로 진입되는 홀더스탠드(80)와,A holder stand 80 coupled to the coupling rod 30 to fix the lapping glass 70 and to enter into the annular sheet surface 110; 상기 결합봉(30)에 결합되어 상기 몸체블럭(60), 래핑글래스(70) 및 홀더스탠드(80)를 고정시키는 상/하부 고정너트(41)(42)를 구비하여 된 것을 특징으로 하는 밸브의 시트면 연마장치.The upper and lower fixing nuts 41 and 42 which are coupled to the coupling rod 30 to fix the body block 60, the wrapping glass 70, and the holder stand 80 are provided. Sheet surface grinding machine. 제 1 항에 있어서, 상기 결합봉(30)에 결합되어 상기 래핑글래스(70)를 시트면(110)에 가압시키는 웨이트(50)를 더 구비하여 된 것을 특징으로 하는 밸브의 시트면 연마장치.The seat surface polishing apparatus according to claim 1, further comprising a weight (50) coupled to the coupling rod (30) to press the wrapping glass (70) onto the seat surface (110). 제 1 항 또는 제 2 항에 있어서, 상기 래핑글래스(70)가 상기 시트면(110)에 안착된 상태에서 상기 래핑글래스(70)와 밸브를 상대회전시키는 회전수단을 더 구비한 것을 특징으로 하는 밸브의 시트 연마장치.According to claim 1 or 2, characterized in that it further comprises a rotating means for relatively rotating the wrapping glass 70 and the valve in a state in which the wrapping glass 70 is seated on the seat surface (110). Seat grinding machine for valves.
KR2020090010220U 2009-08-05 2009-08-05 grinder of valve seat KR200458058Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020090010220U KR200458058Y1 (en) 2009-08-05 2009-08-05 grinder of valve seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020090010220U KR200458058Y1 (en) 2009-08-05 2009-08-05 grinder of valve seat

Publications (2)

Publication Number Publication Date
KR20110001472U true KR20110001472U (en) 2011-02-11
KR200458058Y1 KR200458058Y1 (en) 2012-01-18

Family

ID=44206582

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020090010220U KR200458058Y1 (en) 2009-08-05 2009-08-05 grinder of valve seat

Country Status (1)

Country Link
KR (1) KR200458058Y1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107791125A (en) * 2016-08-30 2018-03-13 镇江维纳特气门有限公司 A kind of valve retainer restorative procedure
KR20210090347A (en) * 2020-01-10 2021-07-20 태광엠앤에스 주식회사 Chuck for processing seat of gate valve
KR20230052403A (en) * 2021-10-13 2023-04-20 한국수력원자력 주식회사 A device for polishing the inner circumferential surface of a pipe using centrifugal force

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102000118B1 (en) 2019-02-19 2019-07-15 한전케이피에스 주식회사 Lapping tool for electric tool lapping valve back seat

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997008720A1 (en) * 1995-08-23 1997-03-06 Matsushita Electric Industrial Co., Ltd. Operation type electronic component
KR100482999B1 (en) * 2002-09-30 2005-04-15 임 그리워 Health Beverage composition using the concentrate of Deep Ocean Water
KR200414582Y1 (en) 2005-12-29 2006-04-24 주식회사 수력 Lapping machine for gate valve
KR200428251Y1 (en) 2006-07-07 2006-10-12 한라정공 주식회사 polishing apparatus for gate valve seat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107791125A (en) * 2016-08-30 2018-03-13 镇江维纳特气门有限公司 A kind of valve retainer restorative procedure
KR20210090347A (en) * 2020-01-10 2021-07-20 태광엠앤에스 주식회사 Chuck for processing seat of gate valve
KR20230052403A (en) * 2021-10-13 2023-04-20 한국수력원자력 주식회사 A device for polishing the inner circumferential surface of a pipe using centrifugal force

Also Published As

Publication number Publication date
KR200458058Y1 (en) 2012-01-18

Similar Documents

Publication Publication Date Title
KR200458058Y1 (en) grinder of valve seat
CN107243802A (en) A kind of auto parts machinery sanding apparatus for being easy to garbage collection
CN108032177A (en) A kind of grinding tool for sealing surface of safety valve
CN202684692U (en) Load reduction lifting device separated from calibration disc of continuous polishing machine
CN214351454U (en) Grinding device is used in valve processing
CN205765314U (en) The internal sanding apparatus of a kind of collapsible mast
CN103600275A (en) Floating polisher and polishing method
CN209698770U (en) A kind of autogenous mill
KR101541680B1 (en) Lapping machine for polishing seat surface of valve
CN208801208U (en) The dedicated end spindle tools of automatically grinding
CN208528750U (en) A kind of sander playing rib die arrangement and the application device
CN207480299U (en) A kind of numerical control valve grinder
CN214292292U (en) Polishing device used in environment-friendly flange plate machining process
JP5904403B2 (en) Fluid barrel polishing equipment
JP6920075B2 (en) Diaphragm valve mounting structure and diaphragm valve attachment / detachment method
CN207019975U (en) A kind of source of the gas cooling type spectrum sample grinding machine
CN206952801U (en) A kind of dismountable combined type polishing disk
US20160161381A1 (en) Substrate edge clamping force tester
CN104907908A (en) Vertical belt sander
CN107931340A (en) A kind of fixing device for rubber tube wire wire drawing
CN206614364U (en) Liquid chromatogram Special grinding pipe device
CN213730783U (en) Air suction type dust removal grinding machine
CN208584376U (en) A kind of abrasive Flow fixture
CN205928178U (en) Flange seal groove grinder
KR20180001895U (en) Lapping jig for safty-valve nozzle

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20141223

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20151217

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20161226

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20171228

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20181231

Year of fee payment: 8

EXPY Expiration of term