KR100257219B1 - Method and device for making a safety operation of a polyethylene gas pipe valve arrangement - Google Patents

Method and device for making a safety operation of a polyethylene gas pipe valve arrangement Download PDF

Info

Publication number
KR100257219B1
KR100257219B1 KR1019970054303A KR19970054303A KR100257219B1 KR 100257219 B1 KR100257219 B1 KR 100257219B1 KR 1019970054303 A KR1019970054303 A KR 1019970054303A KR 19970054303 A KR19970054303 A KR 19970054303A KR 100257219 B1 KR100257219 B1 KR 100257219B1
Authority
KR
South Korea
Prior art keywords
gear
handle
valve
degrees
substem
Prior art date
Application number
KR1019970054303A
Other languages
Korean (ko)
Other versions
KR980003120A (en
Inventor
박용관
Original Assignee
박용관
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 박용관 filed Critical 박용관
Priority to KR1019970054303A priority Critical patent/KR100257219B1/en
Publication of KR980003120A publication Critical patent/KR980003120A/en
Application granted granted Critical
Publication of KR100257219B1 publication Critical patent/KR100257219B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

Abstract

PURPOSE: An opening safe driving device is provided to make easy valve opening by using drive gears through a socket melt-bonding of a gear housing and to protect the drive gear caused by operation limitless. CONSTITUTION: A sub-stem gear(41) transmits driving power as a middle gear(42) is engaged with the sub-stem gear and one side gear is cut and formed therewith. A handle gear(43) operates, being engaged with the middle gear to operate connecting with a handle. Upon rotation of the handle gear as 2 cycles-1/4 rotation for valve opening, power passes through the middle gear to be transmitted to the sub-stem gear and with rotation of the sub-stem gear 90 degrees, a valve is opened and shut off. Each gear-rotational-angle is applied in a manner that the sub stem gear is operated by 90 degrees, the middle gear as 270 degrees and the handle gear 810 degrees (gear ratio 1:3:9) so the rest of gear units are cut off except for operational zone of middle gear of 270-degree-rotation. Thus as passing by the 270 degrees zone, with not engaged with the handle gear, power is not delivered to protect the gear unit.

Description

가스배관용 폴리에틸렌 밸브의 개폐 안전 구동장치 및 그 방법Opening and closing safety device of polyethylene valve for gas piping and method

본 발명은 가스배관용 폴리에틸렌 밸브의 개폐 안전 구동장치 및 그 방법에 관한 것으로서, 상세하게는 다수의 기어들을 내부에 치합하여 내설한 기어하우징을 형성하여 밸브의 보호관 상부에 소켓 융착하여 사용할시 작업자의 무리한 작동으로 인한 구동기어를 보호하도록 한 가스배관용 폴리에틸렌 밸브의 개폐 안전 구동장치 및 그 방법에 관한 것이다.The present invention relates to a safety device for opening and closing a polyethylene valve for gas piping and a method thereof, and more particularly, to form a gear housing in which a plurality of gears are fitted therein to form a gear housing in which a worker is fused when a socket is fused to an upper portion of a protective tube of a valve. The present invention relates to a safety valve and a method for opening and closing a polyethylene valve for gas piping to protect the drive gear due to excessive operation.

일반적으로 가스 등을 이송하는 가스파이프는 도시계획상 지중에 매설하여 사용하되, 각 구간마다 이를 개폐할 수 있도록 가스조절 밸브장치가 설치되는 바, 이와 같은 가스개폐밸브는 지중에 매설되어 있어 개폐조작하기에 다소 번거러울 뿐만 아니라, 개폐밸브 자체가 주물로 되어 있어 폴리에틸렌재질의 가스파이프와 그 배관 접속시 공사의 어려움이 따랐고 금속의 부식에 의한 가스누출의 위험도 내포하고 있었다.In general, gas pipes for transporting gas are used in the underground for urban planning, but a gas control valve device is installed to open and close each section. Such a gas opening / closing valve is buried in the ground. In addition to being a little cumbersome, the opening / closing valve itself was cast, which made construction difficult when connecting the polyethylene gas pipe and its pipes, and also included the risk of gas leakage due to metal corrosion.

그래서, 종래에는 상기와 같은 점을 감안하여 배관공사시 작업의 애로점들을 줄일 수 있도록 가스개폐밸브를 폴리에틸렌 재질로 사출 성형하고 또, 잔류가스를 퍼지할 수 있는 퍼지관을 일체로 구비하여 밸브의 개폐조작을 맨홀을 통한 지면가까이에서 할 수 있도록 한 폴리에틸렌 밸브 개폐장치를 제공하게 되었다.Therefore, in view of the above, conventionally, the gas opening and closing valve is injection molded of polyethylene material so as to reduce the trouble points of the piping work, and a purge tube capable of purging residual gas is integrally provided to open and close the valve. A polyethylene valve switchgear is provided that allows the operation to be close to the ground through the manhole.

도 1에 도시된 바와 같이 종래의 폴리에틸렌 밸브 개폐장치는 개폐밸브(31)를 폴리에틸렌으로 사출 성형하되, 양측으로 앤드(2)에 파이프라인(11)을 융착 접속하고 선단에 퍼지밸브(6)를 갖는 퍼지파이프(5)를 소켓접속하여 퍼지밸브(6)가 상방에 위치하게 하고 개폐밸브(1)의 어댑터(4)에는 길게 연장된 서브스템(4)을 통하여 지상에서 핸들(12)을 사용하여 손쉽게 조작할 수 있도록 형성하여 상기 퍼지파이프(5)와 스템보호관(8)은 브라켓(9)에 의해 고정되게 구성한 가스배관용 폴리에틸렌 개폐밸브 장치를 제공하게 되었다.As shown in FIG. 1, the conventional polyethylene valve open / close device is injection molded of the on / off valve 31 with polyethylene, and the pipeline 11 is fusion-spliced to the end 2 on both sides, and the purge valve 6 is connected to the front end. The purge pipe 5 is connected to the socket so that the purge valve 6 is positioned upwards, and the handle 12 is used on the ground through the long extending subsystem 4 to the adapter 4 of the on-off valve 1. The purge pipe 5 and the stem protection tube 8 are formed to be easily manipulated to provide a polyethylene on / off valve device for gas piping configured to be fixed by the bracket 9.

그러나, 상기 밸브(1)의 핸들어댑터(4)에 핸들(12)을 삽입한 후, 지상에서 작동시키는 방식으로 시계방향으로 돌리면 밸브가 닫히고 반대방향으로 회전시키면 열리는 방식으로 시공자가 밸브를 표준치수보다 더 깊게 매설할 경우 모멘트(moment-역율)가 증가하여 회전력이 과다하게 상승될 뿐만 아니라 또한, 밸브의 특성상 장시간 동안 작동시키지 않음에 따라서 과다회전력(over torque)이 발생하여 수동조작으로는 200A 이상 밸브를 작동시키기가 난해하여 작업자가 작동하기에 여러 가지의 문제점이 있었다.However, after inserting the handle 12 into the handle adapter 4 of the valve 1, the contractor rotates the valve clockwise in the manner of operating on the ground and closes the valve, and the contractor opens the valve in the standard manner in the open manner. When buried deeper, the moment (power factor) increases and the torque is excessively increased.In addition, due to the valve's characteristics, it does not operate for a long time, resulting in over torque. Difficult to operate the valve has a number of problems for the operator to operate.

본 발명은 전술한 상기의 문제점을 해결하기 위하여 발명된 것으로서, 기존의 가스배관용 폴리에틸렌 밸브의 핸들어댑터 대신 스템보호관에 기어가 치합 내장된 기어하우징을 소켓 융착 형성하여 상기 구동기어들을 이용함으로써 밸브개폐를 쉽고 용이하게 하도록 함은 물론, 작업자의 무리한 작동으로 인한 구동기어를 보호하도록 한 가스배관용 폴리에틸렌 개폐밸브의 개폐 안전 구동장치 및 그 방법을 제공하는데 그 목적이 있다.The present invention has been invented to solve the above-described problems, the valve housing by opening the gear housing in which the gear is integrated into the stem protection pipe in the socket protective valve instead of the handle adapter of the polyethylene valve for gas piping by using the drive gears It is an object of the present invention to provide a safe opening and closing device and a method of opening and closing a polyethylene on-off valve for gas piping, as well as to easily and easily protect the drive gear due to excessive operation of the operator.

도 1은 본 발명에 따른 폴리에틸렌 밸브에 개폐 안전구동장치가 설치된 상태를 보인 전체 사시도1 is an overall perspective view showing a state opening and closing safety drive device installed in the polyethylene valve according to the present invention

도 2는 본 발명에 따른 안전 구동장치의 단면도2 is a sectional view of a safety drive device according to the present invention;

도 3은 본 발명에 따른 안전 구동장치가 내설된 구동기어를 보인 상태도.Figure 3 is a state diagram showing a drive gear incorporating a safety drive device according to the present invention.

***도면의 주요부분에 대한 부호의 설명****** Explanation of symbols for main parts of drawing ***

31 : 개폐(가스)밸브 32 : 앤드31: open / close (gas) valve 32: end

33 : (가스)파이프라인 34 : 서브스템33 (gas) pipeline 34: substem

35 : 퍼지파이프 36 : 퍼지밸브35: purge pipe 36: purge valve

38 : 스템보호관 39 : 브라켓38: stem protection tube 39: bracket

40 : 핸들 41 : 서브스템기어40: handle 41: substem gear

42 : 미들기어 42a : 절단기어부 (안전장치)42: middle gear 42a: cutter fish (safety device)

43 : 핸들기어 44 : 하부하우징43: handle gear 44: lower housing

45 : 상부하우징 46 : 체결볼트45: upper housing 46: fastening bolt

47 : 핸들기어 볼트47: handle gear bolt

전술한 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,

가스파이프와 연결된 앤드와 이를 개폐하도록 볼 및 서브스템으로 구비된 폴리에틸렌 가스개폐밸브의 안전장치에 있어서,In the safety device of the polyethylene gas open and close valve provided with a ball and a substem to open and close the end connected to the gas pipe,

상기 서브스템의 상부에 연결되어 구동력을 전달하기 위한 서브스템기어;A substem gear connected to an upper portion of the substem for transmitting a driving force;

상기 서브스템기어에 치합되고, 그 일측 기어부가 절단 형성되며 구동력을 전달하기 위한 미들기어;A middle gear meshed with the sub-stem gear, the gear of which one side is cut, and configured to transmit a driving force;

상기 미들기어에 치합 형성되고, 그 상측으로 핸들과 연결되어 작동하기 위한 핸들기어;A handle gear meshed with the middle gear and connected to the handle to operate upwardly;

상기 각각의 기어들을 그 내측으로 내설하고 스템보호관에 소켓융착되기 위한 하부하우징;A lower housing for insulting the respective gears therein and for socket fusion to the stem protection tube;

상기 하부하우징의 상부로 덮어 씌워지기 위한 상부 하우징; 및An upper housing to be covered with an upper portion of the lower housing; And

상기 상,하부하우징을 연결 고정하는 체결볼트를; 포함하여 상기 핸들을 사용하여 기어구동시 상기 미들기어의 절단된 기어부에서는 구동되지 않는 것을 특징으로 하는 가스배관용 폴리에틸렌 밸브의 개폐 안전 구동장치를 제공하게 된다.A fastening bolt connecting and fixing the upper and lower housings; Including the handle to provide a safety device for opening and closing the polyethylene valve for gas piping characterized in that the gear is not driven when the gear drive the middle gear when driving.

또한, 상기 안전 구동장치에 따른 본 발명의 안전 구동방법은,In addition, the safe drive method of the present invention according to the safe drive device,

가스파이프와 연결된 앤드와, 이를 개폐하도록 볼 및 서브스템으로 구비된 폴리에틸렌 가스개폐밸브의 안전작동방법에 있어서,In the safe operation method of the polyethylene gas open and close valve provided with an end connected to the gas pipe, and the ball and the substem to open and close the gas pipe,

상기 밸브개폐를 위하여 핸들기어를 2바퀴-1/4회전(810도) 회전시키면 동력이 미들기어를 거쳐 서브스템기어에 전달되고, 서브스템기어가 90도로 회전하면 밸브가 열리고 닫히게 되며, 이때의 각 기어 회전각도는 우선 서브스템기어가 90도만 작동되고, 미들기어가 270도, 핸들기어가 810도 회전되는 것을 감안하여 (기어비1:3:9) 미들기어 270도 작동구간을 제외한 나머지 기어부가 절단되어져 있어, 270도 구간을 지나서는 핸들기어와 맞물리지 않게 되므로 동력이 전달되지 않게 됨에 따라 기어부가 보호되는 것을 특징으로 하는 가스배관용 폴리에틸렌 밸브의 개폐 안전 구동방법을 제공하게 된다.When the handle gear is rotated 2 turns-1/4 turn (810 degrees) to open and close the valve, power is transmitted to the substem gear via the middle gear, and when the substem gear is rotated 90 degrees, the valve opens and closes. Each gear rotation angle is based on the fact that the sub-stem gear operates only 90 degrees, the middle gear rotates 270 degrees, and the handle gear rotates 810 degrees (gear ratio 1: 3: 9). Since it is cut, it does not mesh with the handle gear after passing the 270 degree section provides a safe opening and closing method of opening and closing the polyethylene valve for gas piping characterized in that the gear portion is protected as power is not transmitted.

이하, 본 발명에 따른 가스배관용 개폐밸브의 안전 구동장치를 도시된 도면을 참조하여 설명하면 다음과 같다.Hereinafter, with reference to the drawings the safety drive device for the gas pipeline open and close valve according to the present invention.

가스파이프(33)와 연결된 앤드(32)와, 이를 개폐하도록 볼 및 서브스템(34)으로 구비된 가스 개폐밸브의 안전장치(42a)를 형성함에 있어, 상기 서브스템(34)의 상부에 연결되어 구동력을 전달하기 위한 서브스템기어(41)와, 상기 서브스템기어(41)에 치합되고, 그 일측 기어부(42a)가 절단 형성되며, 구동력을 전달하기 위한 미들기어(42)와, 상기 미들기어(42)에 치합 형성되고, 그 상측으로 핸들(40)과 연결되어 작동하기 위한 핸들기어(43)와, 상기 각각의 기어들(41)(42)(43)을 그 내측으로 내설하고 스템보호관(38)에 소켓 융착되기 위한 하부하우징(44)과, 상기 하부하우징(44)의 상부로 덮어 씌워지기 위한 상부 하우징(45); 및 상기 상,하부하우징(44)(45)을 연결 고정하는 체결볼트(46)를 포함하여 구성된다.In forming an end 32 connected to the gas pipe 33 and a safety valve 42a of the gas opening / closing valve provided with the ball and the substem 34 to open and close the gas pipe 33, the end 32 is connected to the upper portion of the substem 34. And a sub-stem gear 41 for transmitting the driving force, the sub-stem gear 41 is engaged with the sub-stem gear 41, and one gear portion 42a is cut and formed, and a middle gear 42 for transmitting the driving force, and The gear is formed in the middle gear 42, and the handle gear 43 and the respective gears 41, 42 and 43 for operating in connection with the handle 40 are installed therein. A lower housing (44) for welding the socket to the stem protection tube (38), and an upper housing (45) to be covered with an upper portion of the lower housing (44); And fastening bolts 46 connecting and fixing the upper and lower housings 44 and 45.

그리고, 상기 미들기어(42)의 270도 작동구간을 제외한 90도 구간의 기어부(42a)가 절단하여 형성되는 것으로 구성된다.Then, the gear portion 42a of the 90-degree section except for the 270-degree operating section of the middle gear 42 is formed by cutting.

또한, 상기 핸들기어(43)가 위치하는 하부하우징(44)의 일측 하부로 핸들기어볼트(47)를 체결하여 상기 핸들기어(43)가 이탈 방지하도록 구성된다.In addition, the handle gear 43 is fastened to one side of the lower housing 44 in which the handle gear 43 is positioned to prevent the handle gear 43 from being separated.

한편, 밸브작동자가 개폐밸브(31)를 개폐할 때 이미 밸브(31)가 열리거나 닫혔음에도 불구하고 핸들(40)을 계속해서 조작하였을 경우 핸들기어(43)는 핸들힘에 의해서 작동되려하고 서브스템기어(41)는 서브스템(34)에 연결되어 있기 때문에 밸브(31)가 더 이상 열리거나 닫히지 않게 됨에 따라서 미들기어(42)의 서브스템기어(41) 쪽은더 이상 회전하지 않고 핸들기어(43) 쪽은 회전하려 하기 때문에 미들기어(42) 또는 핸들기어(43) 이빨이 파손될 우려가 대두됨에 따라서 안전장치 설치는 꼭 필요로 하게 된다.On the other hand, when the valve operator continues to operate the handle 40 despite the valve 31 being opened or closed when the valve operator opens or closes the valve 31, the handle gear 43 is operated by the handle force and the sub Since the stem gear 41 is connected to the sub stem 34, the valve 31 no longer opens or closes, so the sub stem gear 41 side of the middle gear 42 no longer rotates and the handle gear does not rotate. Since the side 43 is about to rotate, the middle gear 42 or the handle gear 43 teeth may be damaged, so the safety device must be installed.

상기 개폐밸브(31)의 안전 구동장치(50)를 구동함에 있어 작동방법은,The operation method in driving the safety drive device 50 of the on-off valve 31,

밸브개폐(31)를 위하여 핸들로 핸들기어(43)를 2바퀴- 1/4회전(810도)회전시키면 동력이 미들기어(42) 거쳐 서브스템기어(41)에 전달되어 서브스템기어(41)가 90도로 회전하면 밸브가 열리고 닫히게 는 것이며, 이때의 각 기어의 회전각도는 우선 서브스템기어(41)가 90도로만 작동되고 미들기어(42)가 270도 핸들기어(43)가 810도 회전하는 것을 감안하여 기어비 1:3:9로써, 미들기어(42)270도 작동구간을 제외한 나머지 기어이빨구간(42a)을 절단하므로써 270도 구간을 지나서는 핸들기어(43)의 이빨과 맞물리지 않게 됨으로 더 이상 동력이 전달되지 않게 됨에 따라 기어이빨을 보호하게 되는 것이다.When the handle gear 43 is rotated 2 to 1/4 turns (810 degrees) with the handle for opening and closing the valve 31, the power is transmitted to the substem gear 41 via the middle gear 42 and the substem gear 41 Is rotated 90 degrees, the valve opens and closes. At this time, the rotation angle of each gear is first operated by the substem gear 41 only by 90 degrees, the middle gear 42 by 270 degrees, and the handle gear 43 by 810 degrees. Considering the rotation, the gear ratio 1: 3: 9 prevents the middle gear 42 and the teeth of the handle gear 43 from passing through the 270 degree section by cutting the remaining gear tooth section 42a except the operating section. This protects the gear teeth as no more power is transmitted.

이상에서 설명한 바와 같은 본 발명은, 기존의 가스배관용 폴리에틸렌 밸브의 핸들어댑터 대신 스템보호관의 상부로 다수의 기어가 치합 내장된 기어하우징을 소켓 융착 형성하여 밸브개폐를 쉽고 용이하게 할 뿐만 아니라, 작업자의 무리한 작동으로 인한 구동기어가 파손되는 충격을 최소화 할 수 있는 매우 유용한 발명인 것이다.As described above, the present invention provides a gear housing in which a plurality of gears are integrated into the upper part of the stem protection tube instead of the handle adapter of the polyethylene valve for gas piping, thereby making it easy and easy to open and close the valve. It is a very useful invention that can minimize the impact of the drive gear breakage due to excessive operation of the.

Claims (3)

가스파이프와 연결된 앤드와, 이를 개폐하도록 볼 및 서브스템으로 구비된 폴리에틸렌 가스개폐밸브의 안전장치에 있어서,In the safety device of the polyethylene gas open and close valve provided with an end connected to the gas pipe and a ball and a substem to open and close the gas pipe, 상기 서브스템의 상부에 연결되어 구동력을 전달하기 위한 서브스템기어;A substem gear connected to an upper portion of the substem for transmitting a driving force; 상기 서브스템기어에 치합되고, 그 일측 기어부가 절단 형성되며 구동력을 전달하기 위한 미들기어;A middle gear meshed with the sub-stem gear, the gear of which one side is cut, and configured to transmit a driving force; 상기 미들기어에 치합 형성되고, 그 상측으로 핸들과 연결되어 작동하기 위한 핸들기어;A handle gear meshed with the middle gear and connected to the handle to operate upwardly; 상기 각각의 기어들을 그 내측으로 내설하고 스템보호관에 소켓융착되기 위한 하부하우징;A lower housing for insulting the respective gears therein and for socket fusion to the stem protection tube; 상기 하부하우징의 상부로 덮어 씌워지기 위한 상부 하우징; 및An upper housing to be covered with an upper portion of the lower housing; And 상기 상,하부하우징을 연결 고정하는 체결볼트를; 포함하여 상기 핸들을 사용하여 기어구동시 상기 미들기어의 절단된 기어부에서는 구동되지 않는 것을 특징으로 하는 가스배관용 폴리에틸렌 개폐밸브의 개폐 안전 구동장치.A fastening bolt connecting and fixing the upper and lower housings; Including the handle by using the handle opening and closing safety drive device of the polyethylene on-off valve for gas pipes, characterized in that not driven in the cut gear portion of the middle gear. 제 1항에 있어서, 상기 미들기어의 270도 작동구간을 제외한 90도 구간의 기어부가 절단하여 형성되는 것을 특징으로 하는 가스배관용 폴리에틸렌 밸브의 개폐 안전 구동장치.2. The opening and closing safety driving device of a polyethylene valve for gas piping according to claim 1, wherein a gear part of a 90 degree section except for a 270 degree operating section of the middle gear is formed by cutting. 가스파이프와 연결된 앤드와, 이를 개폐하도록 볼 및 서브스템으로 구비된 폴리에틸렌 가스개폐밸브의 안전작동방법에 있어서,In the safe operation method of the polyethylene gas open and close valve provided with an end connected to the gas pipe, and the ball and the substem to open and close the gas pipe, 상기 밸브개폐를 위하여 핸들기어를 2바퀴-1/4회전(810도) 회전시키면 동력이 미들기어를 거쳐 서브스템기어에 전달되고,When the handle gear is rotated 2 turns-1/4 turn (810 degrees) to open and close the valve, power is transmitted to the substem gear via the middle gear, 서브스템기어가 90도로 회전하면 밸브가 열리고 닫히게 되며,When the substem gear rotates 90 degrees, the valve opens and closes. 이때의 각 기어 회전각도는 우선 서브스템기어가 90도만 작동되고,At this time, the gear rotation angle is first operated by the substem gear only 90 degrees, 미들기어가 270도, 핸들기어가 810도 회전되는 것을 감안하여 (기어비1:3:9) 미들기어 270도 작동구간을 제외한 나머지 기어부가 절단되어져 있어,Considering that the middle gear is rotated 270 degrees and the handle gear is rotated 810 degrees (gear ratio 1: 3: 9), the gears of the middle gear 270 degrees are cut except for the operating section. 270도 구간을 지나서는 핸들기어와 맞물리지 않게 되므로 동력이 전달되지 않게 됨에 따라 기어부가 보호되는 것을 특징으로 하는 가스배관용 폴리에틸렌 밸브의 개폐 안전 구동방법.The opening and closing safety drive method of the polyethylene valve for gas piping characterized in that the gear portion is protected as the power is not transmitted because the handle gear is not engaged with the 270 degree section.
KR1019970054303A 1997-10-23 1997-10-23 Method and device for making a safety operation of a polyethylene gas pipe valve arrangement KR100257219B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970054303A KR100257219B1 (en) 1997-10-23 1997-10-23 Method and device for making a safety operation of a polyethylene gas pipe valve arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970054303A KR100257219B1 (en) 1997-10-23 1997-10-23 Method and device for making a safety operation of a polyethylene gas pipe valve arrangement

Publications (2)

Publication Number Publication Date
KR980003120A KR980003120A (en) 1998-03-30
KR100257219B1 true KR100257219B1 (en) 2000-05-15

Family

ID=19523229

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970054303A KR100257219B1 (en) 1997-10-23 1997-10-23 Method and device for making a safety operation of a polyethylene gas pipe valve arrangement

Country Status (1)

Country Link
KR (1) KR100257219B1 (en)

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8137466B2 (en) 2009-08-24 2012-03-20 Samsung Mobile Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8486737B2 (en) 2009-08-25 2013-07-16 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8536057B2 (en) 2009-06-25 2013-09-17 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light emitting device by using the same
US8709161B2 (en) 2009-08-05 2014-04-29 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8707889B2 (en) 2011-05-25 2014-04-29 Samsung Display Co., Ltd. Patterning slit sheet assembly, organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus, and the organic light-emitting display apparatus
US8802200B2 (en) 2009-06-09 2014-08-12 Samsung Display Co., Ltd. Method and apparatus for cleaning organic deposition materials
US8833294B2 (en) 2010-07-30 2014-09-16 Samsung Display Co., Ltd. Thin film deposition apparatus including patterning slit sheet and method of manufacturing organic light-emitting display device with the same
US8846547B2 (en) 2010-09-16 2014-09-30 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the thin film deposition apparatus, and organic light-emitting display device manufactured by using the method
US8852687B2 (en) 2010-12-13 2014-10-07 Samsung Display Co., Ltd. Organic layer deposition apparatus
US8859325B2 (en) 2010-01-14 2014-10-14 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8859043B2 (en) 2011-05-25 2014-10-14 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8865252B2 (en) 2010-04-06 2014-10-21 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8871542B2 (en) 2010-10-22 2014-10-28 Samsung Display Co., Ltd. Method of manufacturing organic light emitting display apparatus, and organic light emitting display apparatus manufactured by using the method
US8876975B2 (en) 2009-10-19 2014-11-04 Samsung Display Co., Ltd. Thin film deposition apparatus
US8882921B2 (en) 2009-06-08 2014-11-11 Samsung Display Co., Ltd. Thin film deposition apparatus
US8882922B2 (en) 2010-11-01 2014-11-11 Samsung Display Co., Ltd. Organic layer deposition apparatus
US8882556B2 (en) 2010-02-01 2014-11-11 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8882920B2 (en) 2009-06-05 2014-11-11 Samsung Display Co., Ltd. Thin film deposition apparatus
US8894458B2 (en) 2010-04-28 2014-11-25 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8906731B2 (en) 2011-05-27 2014-12-09 Samsung Display Co., Ltd. Patterning slit sheet assembly, organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus, and the organic light-emitting display apparatus
US8907326B2 (en) 2009-06-24 2014-12-09 Samsung Display Co., Ltd. Organic light-emitting display device and thin film deposition apparatus for manufacturing the same
US8916237B2 (en) 2009-05-22 2014-12-23 Samsung Display Co., Ltd. Thin film deposition apparatus and method of depositing thin film
US8921831B2 (en) 2009-08-24 2014-12-30 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8945974B2 (en) 2012-09-20 2015-02-03 Samsung Display Co., Ltd. Method of manufacturing organic light-emitting display device using an organic layer deposition apparatus
US8951349B2 (en) 2009-11-20 2015-02-10 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8951610B2 (en) 2011-07-04 2015-02-10 Samsung Display Co., Ltd. Organic layer deposition apparatus
US8956697B2 (en) 2012-07-10 2015-02-17 Samsung Display Co., Ltd. Method of manufacturing organic light-emitting display apparatus and organic light-emitting display apparatus manufactured by using the method
US8968829B2 (en) 2009-08-25 2015-03-03 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8973525B2 (en) 2010-03-11 2015-03-10 Samsung Display Co., Ltd. Thin film deposition apparatus
US8993360B2 (en) 2013-03-29 2015-03-31 Samsung Display Co., Ltd. Deposition apparatus, method of manufacturing organic light emitting display apparatus, and organic light emitting display apparatus
US9018647B2 (en) 2010-09-16 2015-04-28 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US9040330B2 (en) 2013-04-18 2015-05-26 Samsung Display Co., Ltd. Method of manufacturing organic light-emitting display apparatus
US9051636B2 (en) 2011-12-16 2015-06-09 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus
US9121095B2 (en) 2009-05-22 2015-09-01 Samsung Display Co., Ltd. Thin film deposition apparatus
US9150952B2 (en) 2011-07-19 2015-10-06 Samsung Display Co., Ltd. Deposition source and deposition apparatus including the same
US9174250B2 (en) 2009-06-09 2015-11-03 Samsung Display Co., Ltd. Method and apparatus for cleaning organic deposition materials
US9234270B2 (en) 2011-05-11 2016-01-12 Samsung Display Co., Ltd. Electrostatic chuck, thin film deposition apparatus including the electrostatic chuck, and method of manufacturing organic light emitting display apparatus by using the thin film deposition apparatus
US9249493B2 (en) 2011-05-25 2016-02-02 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display apparatus by using the same
US9257649B2 (en) 2012-07-10 2016-02-09 Samsung Display Co., Ltd. Method of manufacturing organic layer on a substrate while fixed to electrostatic chuck and charging carrier using contactless power supply module
US9260778B2 (en) 2012-06-22 2016-02-16 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus manufactured using the method
US9279177B2 (en) 2010-07-07 2016-03-08 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US9306191B2 (en) 2012-10-22 2016-04-05 Samsung Display Co., Ltd. Organic light-emitting display apparatus and method of manufacturing the same
US9347886B2 (en) 2013-06-24 2016-05-24 Samsung Display Co., Ltd. Apparatus for monitoring deposition rate, apparatus provided with the same for depositing organic layer, method of monitoring deposition rate, and method of manufacturing organic light emitting display apparatus using the same
US9388488B2 (en) 2010-10-22 2016-07-12 Samsung Display Co., Ltd. Organic film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US9450140B2 (en) 2009-08-27 2016-09-20 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display apparatus using the same
US9461277B2 (en) 2012-07-10 2016-10-04 Samsung Display Co., Ltd. Organic light emitting display apparatus
US9466647B2 (en) 2012-07-16 2016-10-11 Samsung Display Co., Ltd. Flat panel display device and method of manufacturing the same
US9496317B2 (en) 2013-12-23 2016-11-15 Samsung Display Co., Ltd. Method of manufacturing organic light emitting display apparatus
US9496524B2 (en) 2012-07-10 2016-11-15 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus manufactured using the method
US9512515B2 (en) 2011-07-04 2016-12-06 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US9534288B2 (en) 2013-04-18 2017-01-03 Samsung Display Co., Ltd. Deposition apparatus, method of manufacturing organic light-emitting display apparatus by using same, and organic light-emitting display apparatus manufactured by using deposition apparatus
US9593408B2 (en) 2009-08-10 2017-03-14 Samsung Display Co., Ltd. Thin film deposition apparatus including deposition blade
US9624580B2 (en) 2009-09-01 2017-04-18 Samsung Display Co., Ltd. Thin film deposition apparatus
US9748483B2 (en) 2011-01-12 2017-08-29 Samsung Display Co., Ltd. Deposition source and organic layer deposition apparatus including the same
US10246769B2 (en) 2010-01-11 2019-04-02 Samsung Display Co., Ltd. Thin film deposition apparatus
US11441695B1 (en) 2021-06-18 2022-09-13 Polytec Co., Ltd Safety opening/closing valve for easy checking of opened/closed state thereof

Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8916237B2 (en) 2009-05-22 2014-12-23 Samsung Display Co., Ltd. Thin film deposition apparatus and method of depositing thin film
US11624107B2 (en) 2009-05-22 2023-04-11 Samsung Display Co., Ltd. Thin film deposition apparatus
US9121095B2 (en) 2009-05-22 2015-09-01 Samsung Display Co., Ltd. Thin film deposition apparatus
US11920233B2 (en) 2009-05-22 2024-03-05 Samsung Display Co., Ltd. Thin film deposition apparatus
US9873937B2 (en) 2009-05-22 2018-01-23 Samsung Display Co., Ltd. Thin film deposition apparatus
US10689746B2 (en) 2009-05-22 2020-06-23 Samsung Display Co., Ltd. Thin film deposition apparatus
US8882920B2 (en) 2009-06-05 2014-11-11 Samsung Display Co., Ltd. Thin film deposition apparatus
US8882921B2 (en) 2009-06-08 2014-11-11 Samsung Display Co., Ltd. Thin film deposition apparatus
US9174250B2 (en) 2009-06-09 2015-11-03 Samsung Display Co., Ltd. Method and apparatus for cleaning organic deposition materials
US8802200B2 (en) 2009-06-09 2014-08-12 Samsung Display Co., Ltd. Method and apparatus for cleaning organic deposition materials
US8907326B2 (en) 2009-06-24 2014-12-09 Samsung Display Co., Ltd. Organic light-emitting display device and thin film deposition apparatus for manufacturing the same
US8536057B2 (en) 2009-06-25 2013-09-17 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light emitting device by using the same
US8709161B2 (en) 2009-08-05 2014-04-29 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US9593408B2 (en) 2009-08-10 2017-03-14 Samsung Display Co., Ltd. Thin film deposition apparatus including deposition blade
US8193011B2 (en) 2009-08-24 2012-06-05 Samsung Mobile Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8137466B2 (en) 2009-08-24 2012-03-20 Samsung Mobile Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8921831B2 (en) 2009-08-24 2014-12-30 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8486737B2 (en) 2009-08-25 2013-07-16 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8968829B2 (en) 2009-08-25 2015-03-03 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US9450140B2 (en) 2009-08-27 2016-09-20 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display apparatus using the same
US9624580B2 (en) 2009-09-01 2017-04-18 Samsung Display Co., Ltd. Thin film deposition apparatus
US9224591B2 (en) 2009-10-19 2015-12-29 Samsung Display Co., Ltd. Method of depositing a thin film
US8876975B2 (en) 2009-10-19 2014-11-04 Samsung Display Co., Ltd. Thin film deposition apparatus
US9660191B2 (en) 2009-11-20 2017-05-23 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8951349B2 (en) 2009-11-20 2015-02-10 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US10287671B2 (en) 2010-01-11 2019-05-14 Samsung Display Co., Ltd. Thin film deposition apparatus
US10246769B2 (en) 2010-01-11 2019-04-02 Samsung Display Co., Ltd. Thin film deposition apparatus
US8859325B2 (en) 2010-01-14 2014-10-14 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8882556B2 (en) 2010-02-01 2014-11-11 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8973525B2 (en) 2010-03-11 2015-03-10 Samsung Display Co., Ltd. Thin film deposition apparatus
US9453282B2 (en) 2010-03-11 2016-09-27 Samsung Display Co., Ltd. Thin film deposition apparatus
US8865252B2 (en) 2010-04-06 2014-10-21 Samsung Display Co., Ltd. Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US9136310B2 (en) 2010-04-28 2015-09-15 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8894458B2 (en) 2010-04-28 2014-11-25 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US9279177B2 (en) 2010-07-07 2016-03-08 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8833294B2 (en) 2010-07-30 2014-09-16 Samsung Display Co., Ltd. Thin film deposition apparatus including patterning slit sheet and method of manufacturing organic light-emitting display device with the same
US8846547B2 (en) 2010-09-16 2014-09-30 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the thin film deposition apparatus, and organic light-emitting display device manufactured by using the method
US9018647B2 (en) 2010-09-16 2015-04-28 Samsung Display Co., Ltd. Thin film deposition apparatus, method of manufacturing organic light-emitting display device by using the apparatus, and organic light-emitting display device manufactured by using the method
US8871542B2 (en) 2010-10-22 2014-10-28 Samsung Display Co., Ltd. Method of manufacturing organic light emitting display apparatus, and organic light emitting display apparatus manufactured by using the method
US9388488B2 (en) 2010-10-22 2016-07-12 Samsung Display Co., Ltd. Organic film deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8882922B2 (en) 2010-11-01 2014-11-11 Samsung Display Co., Ltd. Organic layer deposition apparatus
US8852687B2 (en) 2010-12-13 2014-10-07 Samsung Display Co., Ltd. Organic layer deposition apparatus
US9748483B2 (en) 2011-01-12 2017-08-29 Samsung Display Co., Ltd. Deposition source and organic layer deposition apparatus including the same
US9234270B2 (en) 2011-05-11 2016-01-12 Samsung Display Co., Ltd. Electrostatic chuck, thin film deposition apparatus including the electrostatic chuck, and method of manufacturing organic light emitting display apparatus by using the thin film deposition apparatus
US9076982B2 (en) 2011-05-25 2015-07-07 Samsung Display Co., Ltd. Patterning slit sheet assembly, organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus, and the organic light-emitting display apparatus
US9249493B2 (en) 2011-05-25 2016-02-02 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display apparatus by using the same
US8707889B2 (en) 2011-05-25 2014-04-29 Samsung Display Co., Ltd. Patterning slit sheet assembly, organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus, and the organic light-emitting display apparatus
US8859043B2 (en) 2011-05-25 2014-10-14 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8906731B2 (en) 2011-05-27 2014-12-09 Samsung Display Co., Ltd. Patterning slit sheet assembly, organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus, and the organic light-emitting display apparatus
US9512515B2 (en) 2011-07-04 2016-12-06 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US9777364B2 (en) 2011-07-04 2017-10-03 Samsung Display Co., Ltd. Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same
US8951610B2 (en) 2011-07-04 2015-02-10 Samsung Display Co., Ltd. Organic layer deposition apparatus
US9150952B2 (en) 2011-07-19 2015-10-06 Samsung Display Co., Ltd. Deposition source and deposition apparatus including the same
US9051636B2 (en) 2011-12-16 2015-06-09 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus
US9260778B2 (en) 2012-06-22 2016-02-16 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus manufactured using the method
US9461277B2 (en) 2012-07-10 2016-10-04 Samsung Display Co., Ltd. Organic light emitting display apparatus
US9257649B2 (en) 2012-07-10 2016-02-09 Samsung Display Co., Ltd. Method of manufacturing organic layer on a substrate while fixed to electrostatic chuck and charging carrier using contactless power supply module
US9496524B2 (en) 2012-07-10 2016-11-15 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus manufactured using the method
US10431779B2 (en) 2012-07-10 2019-10-01 Samsung Display Co., Ltd. Organic layer deposition apparatus, method of manufacturing organic light-emitting display apparatus using the same, and organic light-emitting display apparatus manufactured using the method
US8956697B2 (en) 2012-07-10 2015-02-17 Samsung Display Co., Ltd. Method of manufacturing organic light-emitting display apparatus and organic light-emitting display apparatus manufactured by using the method
US9466647B2 (en) 2012-07-16 2016-10-11 Samsung Display Co., Ltd. Flat panel display device and method of manufacturing the same
US8945974B2 (en) 2012-09-20 2015-02-03 Samsung Display Co., Ltd. Method of manufacturing organic light-emitting display device using an organic layer deposition apparatus
US9306191B2 (en) 2012-10-22 2016-04-05 Samsung Display Co., Ltd. Organic light-emitting display apparatus and method of manufacturing the same
US8993360B2 (en) 2013-03-29 2015-03-31 Samsung Display Co., Ltd. Deposition apparatus, method of manufacturing organic light emitting display apparatus, and organic light emitting display apparatus
US9040330B2 (en) 2013-04-18 2015-05-26 Samsung Display Co., Ltd. Method of manufacturing organic light-emitting display apparatus
US9534288B2 (en) 2013-04-18 2017-01-03 Samsung Display Co., Ltd. Deposition apparatus, method of manufacturing organic light-emitting display apparatus by using same, and organic light-emitting display apparatus manufactured by using deposition apparatus
US9347886B2 (en) 2013-06-24 2016-05-24 Samsung Display Co., Ltd. Apparatus for monitoring deposition rate, apparatus provided with the same for depositing organic layer, method of monitoring deposition rate, and method of manufacturing organic light emitting display apparatus using the same
US9496317B2 (en) 2013-12-23 2016-11-15 Samsung Display Co., Ltd. Method of manufacturing organic light emitting display apparatus
US11441695B1 (en) 2021-06-18 2022-09-13 Polytec Co., Ltd Safety opening/closing valve for easy checking of opened/closed state thereof

Also Published As

Publication number Publication date
KR980003120A (en) 1998-03-30

Similar Documents

Publication Publication Date Title
KR100257219B1 (en) Method and device for making a safety operation of a polyethylene gas pipe valve arrangement
KR102068481B1 (en) Gas welding system with Gas leak detection and Valve auto closing function
CA2172869C (en) Fluid transport pipe joint
ES2841377T3 (en) Gearbox for motoculture equipment and motoculture equipment comprising such a gearbox
JP5451517B2 (en) Pipe joint renewal method for fluid piping system
KR200205818Y1 (en) Opening and closing device of polyethylene valve for gas piping
KR100337135B1 (en) Horizontal tapping machine
JP3963909B2 (en) Valve installation method for existing pipe and cutting device used therefor
KR101542086B1 (en) Safe lock
JP3218084B2 (en) Pipe connection device
KR101264774B1 (en) Opening and closing safely device for valve
US6276878B1 (en) Horizontal cutting-type tapping machine
JP2004204940A (en) Saddle snap tap
JPH0689875B2 (en) Water stop device
JPH02599B2 (en)
KR200176663Y1 (en) Opening/closing device for underground valve
EP0462858B1 (en) Protection device against uncontrollable emissions of gas and insulation bag being part of such a device
KR100786581B1 (en) Valve
RU51161U1 (en) DEVICE FOR DRILLING THE WALL OF AN EXISTING PIPELINE
GB2457563A (en) An installation kit for pipes running in the substructure of a road
JP4624114B2 (en) End processing method and structure of bellows-like gas pipe
JP3549060B2 (en) Pilot governor pressure regulator installation mechanism
KR200408950Y1 (en) Valve
KR200153008Y1 (en) Gas valve
JP3393083B2 (en) Method and apparatus for uninterrupted water supply of piping

Legal Events

Date Code Title Description
A201 Request for examination
G15R Request for early opening
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130225

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20140225

Year of fee payment: 15

FPAY Annual fee payment

Payment date: 20150225

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20160225

Year of fee payment: 17

FPAY Annual fee payment

Payment date: 20170224

Year of fee payment: 18

EXPY Expiration of term