baber/WOPTO huggingface dataset:
Patent KR-20010059188-A (KR)
Inventor: NAM CHEOL U
IPC: H01L21/283
Filed: 1999-12-30
Abstract: PURPOSE: A method for forming a contact plug of a semiconductor device is provided to release the difference between center portion of a wafer and an edge portion of the wafer to increase the credibility of the semiconductor device. CONSTITUTION: The semiconductor contact plug forming method includes following steps. At first, an accumulated structure of an interlayer dielectric layer(21) and a reflection protection layer(23) provided on a semiconductor substrate is etched to form a capacitor contact hole. Then, a polysilicon(25) burying the capacitor contact hole is vaporized and flattened to provided the polysilicon with a difference less than that of the accumulated structure. At third a TiSiN layer(27) is vaporized on the upper portion of overall surface and is oxidized. At last, the oxidized TiSiN layer is flattened until the reflection protection layer is exposed to form the capacitor of the accumulated structure of the polysilicon which has same difference to the accumulated structure and the oxidized TiSiN layer.
Patent KR-20000023686-A (KR)
Inventor: MATYJASZEWSKI KRZYSZTOF
IPC: C08F4/10
Filed: 1999-01-09
Abstract: PURPOSE: A new preparation method of novel (co)polymers by atom transfer radical polymerization and novel composition of (co) polymers thereof exhibiting a limited polydispersity are provided which can be carried out under the condition suitable for a commercial use. CONSTITUTION: An atom(or group) transfer radical polymerization(ATRP) process is described for synthesizing novel polymers, or block or graft copolymers containing optionally one or more polar groups in the presence of an initiating system comprising (i)an initiator having a radically transferable atom or group, (ii)a transition metal compound and (iii)a ligand and having a well defined molecular structure and limited polydispersity. Also described is a method for synthesizing a macromolecular containing two or more halogen groups which can be used as the initiator component(i) and forming a block or graft copolymer by the atom(or group) transfer radical polymerization. Also described is a method for synthesizing a branched polymer and the initiator which can be used for manufacturing the block or graft copolymer.
Patent KR-20000023761-A (KR)
Inventor: PHONVESSE PAUL-VERNER
IPC: H03K5/133
Filed: 1999-01-14
Abstract: PURPOSE: A delay stage having steep edge is provided to structure a time delay relay with relative few number of parts CONSTITUTION: A delay stage having steep edge comprises first inverters(M1,M2), second inverters (M3,M4), a p-channel transistor(M5) and n-channel transistor(M6). The inverters(M1-4) are serially connected each other. The inputs of the first inverters correspond to the input(E) of the delay stage and the outputs of the second inverters correspond to the output(D) of the delay stage. The p-channel transistor(M5) connected as a capacitor is connected between a gate of the p-channel MOS transistor of the second inverter and the output of the delay stage and the n-channel transistor(M6) is connected between a gate of n-channel transistor of the second inverter and the output of the delay stage.
Patent KR-20000068279-A (KR)
Title: Therapeutic treatment for sexual dysfunctions
IPC: C07D487/22
Filed: 1997-08-22
Abstract: A method for treating sexual dysfunctions is disclosed, particularly using the isozyme selective PKC inhibitor, (S)-3,4-ÄN, N'-1,1'-((2"-ethoxy)-3'''(O)-4'''-(N,N-dimethylamino)-butane)-bis-(3,3 '-indolyl)Ü-1(H)-pyrrole-2,5-dione, particularly its hydrochloride, or mesylate salt.
Patent KR-20000068806-A (KR)
Title: 수역정화장치
IPC: C02F1/00
Filed: 1998-08-20
Abstract: 본 발명의 목적은, 물꽃현상(water bloom)을 수류발생장치의 작동에 의해서 생기는 수류를 이용해서 연속적으로 모르고, 이것에 초음파를 조사해서 연속적이고 또한 효율적으로 살조(殺藻)하고, 물꽃현상의 살조를 통해서 수역정화를 효율적으로 또한 재래방식에 비해서 현격한 저코스트에 의해 달성하는 데 있으며, 그 해결수단으로서, 물꽃현상이 많이 발생하는 수역의 수중에, 초음파를 발진하고 그 초음파에 의해 물꽃현상을 살조하는 초음파진동자(3)을 내부에 구비하여 양끝이 개구된 물꽃현상살조통체(2)를 배치하고, 물꽃현상을 함유한 물을 한쪽끝(2a)로부터 물꽃현상살조통체(2)의 내부에 흡인유입시키는 흡인류와 다른쪽끝(2b)로부터 토출시키는 토출류를 발생시키는 수류발생기(4)를 배치하였다.
Patent KR-20000057344-A (KR)
Title: Method for disinfection or sterilization of foods such as meat and vegetable products or produce, of feeding stuffs, machinery and equipment for foods and feeding stuff production, and a technical plant designed to carry out the method
Inventor: RUBOW ULRIK
IPC: G11B21/10
Filed: 1996-12-03
Abstract: PURPOSE: Provided is a method for disinfection or sterilization of foods such as meat or vegetable products or produce, and of feed or machinery and equipment for food and feed production. CONSTITUTION: An item (18) to be disinfected/sterilized is electrically earthed and is exposed to sprays of steam produced from water or another liquid, at temperatures above 50°C. The steam is imposed on the item (18) under the influence of an electrostatic field produced by a positive or negative electric pole, which through the use of static electric high potential forms an electric field shaped in relation to the electrically earthed item (18). The item (18) is disinfected/sterilized in a very short period of time which a minimum of energy consumption.
Patent KR-20000071172-A (KR)
Title: 유기폐기물들을 사용한 연속압출가공 공정
IPC: B29C48/475
Filed: 1998-02-11
Abstract: 무한길이(indeifinite length)의 구조패널(2)을 형성하기 위한 실질적으로 연속하는 방법이다.  방법은 설치가능한 혼합물을 준비하는 단계, 그 혼합물을 유동상태로 로드쳄버(6)로 이송하는 단계, 로드쳄버(6)로부터의 혼합물을 압축수단에 의해 끝단개방된 성형쳄버(17)의 입구(15)를 통해 출구(16)로 향하게 하는 단계, 성형쳄버(17)내에서 혼합물을 적어도 부분적으로 경화하는 단계, 성형쳄버(17)내에서의 소정의 통합압력 또는 밀도가 달성될 때까지 성형쳄버(17)를 통한 혼합물의 이동을 저지하는 단계, 압축수단에 의해 입구(15)를 통하여 처음 강제된 또 다른 혼합물에 응답하여 성형쳄버(17)를 통한 혼합물의 이동을 실질적으로 허용하는 단계, 혼합물의 경화를 허용하는 단계, 및 실질적으로 무한길이의 구조패널을 점진적으로 형성하는 단계를 포함한다.
Patent KR-20000075893-A (KR)
IPC: A61P9/10
Filed: 1998-03-03
Abstract: A method treating or preventing inflammatory and immune cell-mediated diseases by the administration of certain novel and known small molecules. Exemplary of the novel compounds are those of structural formulas (a), (b), (c), (d), (e) and (f).
Patent KR-20010006030-A (KR)
Title: 자기 기록매체로부터 정보를 판독하는 장치
IPC: G11B5/012
Filed: 1999-01-25
Abstract: 기록매체로부터 정보를 판독하는 장치가 개시된다. 이 장치는, 적어도 1개의 자기저항소자(R mr )와, 제 1 트랜지스터(Tr 1 ) 및 제 2 트랜지스터(Tr 2 )를 갖는 판독 헤드를 구비한다. 제 1 트랜지스터(Tr 1 )의 베이스는, 제 1 커패시터(6)를 통해 제 2 트랜지스터(Tr 2 )의 에미터에 접속된다. 제 2 트랜지스터(Tr 2 )의 베이스는, 제 2 커패시터(8)를 통해 제 1 트랜지스터(Tr 1 )의 에미터에 접속된다. 상기한 장치는, 장치의 출력 단자(10, 12)에 접속된 제 1 및 제 2 입력과, 제 1 및 제 2 트랜지스터의 베이스에 접속된 반전 및 비반전 출력을 갖는 비선형 상호 콘덕턴스 증폭기(14)를 구비한다. 상기한 비선형 상호 콘덕턴스 증폭기(14)는, 그것의 입력 양단에 존재하는 전압에 응답하여 그것의 반전 및 비반전 출력에서 제어 전류를 출력하여, 제 1 및 제 2 제어 전류를 각각 발생하는 제 1 및 제 2 입력 전압에 대해, 제 1 입력 전압이 제 2 입력 전압보다 크고, 제 1 제어 전류를 발생하기 위한 상호 콘덕턴스 수단의 증폭율이 제 2 제어 전류를 발생하기 위한 증폭율보다 크게 되도록 구성된다.
Patent KR-20010006471-A (KR)
Title: Decorative automotive interior trim articles with cast integral light stable covering and process for making the same
IPC: B29C69/02
Filed: 1998-04-17
Abstract: An article including a panel structure mountable in an automobile vehicle to form a part of the vehicle interior thereof, and a process for making the same are disclosed. According to this process, an outer layer defining at least a portion of the exposed exterior surface of the structure is prepared by applying a first composition containing a thermoplastic polyurethane and a heat-activated crosslinking agent onto a mold surface and thereafter drying the composition. Next, a second composition comprising (i) a poly(vinyl chloride) resin and at least one plasticizer and/or (ii) a thermoplastic polyurethane resin material is gelled onto an inner surface of the outer layer while on the outer layer is retained on the mold surface. The gelled composition is then fused to form an inner layer interfacially chemically bonded to the outer layer. The layered composite structure is united with the reinforcing substrate so that the reinforcing substrate serves to reinforce the outer layer. The exposed exterior surface of the panel structure simulates the appearance and feel of authentic leather, while the inner layer and an optional semi-rigid polyurethane cellular foam intermediate layer provide a compressing feel to the exposed portion.
Patent KR-20010020254-A (KR)
Title: 플라스틱 및 다른 물질의 디일렉트로카이네시스 검출을 돕는 정전기 대전
IPC: G01V3/08
Filed: 1998-04-16
Abstract: 디일렉트로카이네시스 검출기는 외부 정전기 대전에 필요로하는 정밀한 유전 복제 관련 물질을 포함하는 챔버를 포함한다. 관련 물질은 기계적으로 구속되어 관련 물질의 특성과 동일한 유전특성으로 어느 표적의 존재를 검출하는 속박된 디일렉트로포레시스력의 유전 에너지 역학을 검출할 수 있게 한다. 안테나 조립체는 검출의 근접 거리(범위)를 증가시킨다. 관련 물질에 관한 정전기 대전 소스는 연속적인 검출 능력을 제공하도록 검출력의 수명을 증가시키고, 전기적 전류 서지를 통한 전기적 에너지의 외부 전자 회로 소스는 검출의 양을 정할 수 있는 표시를 준다. 디일렉트로포레시스의 원리에 따르면, 검출기는 어떤 방해의 형태, 시야를 차단하는 물질 구조, 울타리 또는 전자기 간섭(EMI) 신호의 존재 또는 부존재에 관계없이 특정 물질의 존재를 검출할 수 있다.
Patent KR-20010012439-A (KR)
Title: 마이크로미케니컬 부품과 이 부품의 제조방법
IPC: B81B7/00
Filed: 1998-04-17
Abstract: 본 발명은 마이크로미케니컬 부품과 이 부품을 제조하기 위한 방법에 관한 것이다.  본 발명에 따라서, 이동부재(4)는 희생층(2)상에 형성된다.  그후 이동부재(4) 하부의 희생층(2)은 제거되어, 상기 이동부재(4)가 움직일 수 있다.  희생층(2)이 제거된 후에, 이동부재(4)의 표면상에는 보호층(7)이 증착된다.  보호층(7)으로서는 산화 실리콘 또는 질화 실리콘이 이용될 수 있다.
Patent KR-20010012965-A (KR)
Title: 자동차의 엔진 작동 방법
IPC: F02D41/02
Filed: 1999-03-22
Abstract: 제1 작동 방식의 흡입 단계에서, 또는 제2 작동 방식의 압축 단계에서 연료를 연소실(4) 내로 직접 분사시키는 분사 밸브(8) 및 양 작동 방식으로 연소실(4) 내로 분사된 연료량을 제어 및/조정하는 제어 장치를 갖는 특히 자동차의 엔진(1)이 설명된다.  또한 제어 장치(16)가 양 작동 방식으로 연소실(4) 내로 분사된 연료량을 서로 다르게 제어 또는 조정하기 위해 제어 장치(16)가 구비된다.  제어 장치(16)를 통해 먼저 제2 작동 방식의 전이 작동 모드(26)로, 그 다음에 제2 작동 방식의 정상 작동 모드(31, 37)로 전환된다.
Patent KR-20010039516-A (KR)
Title: Device for spine therapy
Inventor: HAN HEON KYOUNG
IPC: A61F5/00
Filed: 2000-01-12
Abstract: PURPOSE: A spinal trac is provided which is effective on therapy of spinal disorders by correcting a pelvic position with prostrating a patient and consequently removing causes of back pains. CONSTITUTION: A spinal trac consists of a main body including a facial stool(51), a chest stool(52), a center stool(50), and a leg stool which are coupled by using a connecting rod(52); and a moving means(60) separately mounted on the center stool for adjusting the position of a pelvic stool(61) according to the condition of a body of a patient. The center stool has a first mount hole(50b), a second mount hole(50c), and a third mount hole(50d) so that the moving means is received at two positions forming a cross angle of about 54degree. The moving means comprises a rail(62) supporting the pelvic stool in a rectilineal motion mode, a motor(64) fixed on the lower center end of the rail, a screw connected to a rotating shaft of the motor, a slider mount on the screw, a link(67) connecting the slider and the pelvic stool, and a switch for rotating the motor in clockwise direction.
Patent KR-20000030175-A (KR)
Inventor: BAK DONG CHOL
IPC: B61G1/00
Filed: 2000-01-29
Abstract: PURPOSE: A cushion tool of a draft gear is provided to easily produce the cushion tool by integrally forming the cushion tool consisted of plural ones and to improve productivity by making an assembly work easy when the cushion tool is assembled in a yoke. CONSTITUTION: When a shock is given to a connection unit since vibration is generated in a railroad vehicle in a state that a cushion tool is inserted in a yoke installed on a connection unit of the railroad vehicle, the shock is transmitted to a supporting plate installed on the outermost side, and the shock is transmitted to an outside steel plate(7) of the outermost side of the cushion tool. When some of the shock is absorbed in a cushion rubber(9) and is blocked in a middle inserting steel plate formed with a metal plate, the shock force is gradually buffered.
Patent KR-20000071916-A (KR)
Inventor: KIM YONG WOOK
IPC: H04L12/54
Filed: 2000-02-15
Abstract: PURPOSE: A lifelong electronic mail address service is provided to make a transmitter transmit letters, parcels, anniversary cards, electronic mail to a designated receiver on a determined future day, so as to give the receiver unexpected emotion. The method is provided to constantly transmit mail by a registered lifelong electronic mail address when a real electronic mail address of a user is changed. CONSTITUTION: A user connects to a mailing system. If the user is newly connected, the mailing system receives personal information and an identification(ID), and endows a lifelong electronic mail address. The mailing system makes out a table for the ID, the lifelong electronic mail address, and a current electronic mail address of the user, and stores the table in a database. If the user logs in the mailing system by the registered ID and modifies the current electronic mail address, the current electronic mail address is updated in the table of the database. If a transmitter transmits mail to a lifelong electronic mail address of a receiver, the mailing system reads the table of the database to convert the lifelong electronic mail address into the current electronic mail address, and transmits the transmitter's mail to the converted electronic address.
Patent KR-20010083589-A (KR)
Title: Instrument for determining Bilirubin concentration and Hemoglobin content
Inventor: KANG GUN
IPC: G01N33/49
Filed: 2000-02-17
Abstract: PURPOSE: A measuring device for density of bilirubin and amount of hemoglobin is provided to measure amount of bilirubin in blood through measuring change in density of plasma for displaying the amount of the bilirubin on a display unit, and to measure amount of the hemoglobin by using a photometer. CONSTITUTION: A main body contains a cell holder combined with or separated from a capillary tube(11), and an examining body insert hole having a sample container(20). A lamp(100) is installed in the main body for generating light source. A concentrating lens(110) collects the light source from the lamp. An insulating filter(200) permeates the light source to sample solution in the capillary tube. A main half mirror(120) and an auxiliary half mirror(130) divide wavelength from the sample solution. A main wavelength pass filter(210), an auxiliary wavelength pass filter(220), and a hemoglobin pass filter(230) are arranged for passing specific wavelengths. Light receiving elements(300) convert amounts of light from the filters into currents. Amplifiers(400) amplify the currents from the light receiving elements. A switch(900) compares wavelength values of lights from the hemoglobin pass filter and the main wavelength pass filter by varying contact point of a control switch(910) according to the cell holder and the sample container. A control unit(600) recognizes voltage difference in values from the filters by a log converter(500) for comparing wavelength values from the filters. A display unit(800) displays the compared wavelength values after converting into digital.
Patent KR-20000030473-A (KR)
Inventor: JUNG IN TAE
IPC: G06F17/00
Filed: 2000-03-02
Abstract: PURPOSE: An integral internet home page network system is provided to supply and manage food, clothing and housing, civil affairs, finance, trading and all kinds of information by connecting all things to the internet domain, home page, system. CONSTITUTION: In an integral internet home page network system the domain names for real world's all things nature are coded and the individual domain is provided all things nature (individuals, corporations, articles, objects). The individual home page is provided to the all things nature (individuals, corporations, articles, etc.) Portal sites for individuals and articles are constituted. The real world is reproduced to a cyber world. The center of the cyber world is moved to human beings, individuals and objects. The integral network system and the thorough safety system are secured. The country integral system and worldwide integral system are constituted.
Patent KR-20010088115-A (KR)
Title: Manufacture apparatus for cube-fome of synthetic resin
Inventor: MOON JONG HYUN
IPC: B41M5/00
Filed: 2000-03-10
Abstract: PURPOSE: A device for manufacturing a cubic molding object is provided to carry out the input program by a selector switch without adding an extra device to an existing cubic molding device and to maintain and mold the arranged condition of the original printed sheet as it is. CONSTITUTION: The device for manufacturing the cubic molding object includes a body(100), the second rising and falling instrument(24), a clamp(22), a selector switch(50), the first rising and falling instrument(12), a mold(14), a table(26), a heater(34) and a conveying guide(32). The center of the body(100) is opened. The clamp(22) is formed on the upper part by the second rising and falling instrument(24). The selector switch(50), which selects and assigns the existing molding operation and the print molding operation, is formed in front of the body(100). The mold(14) including the first rising and falling instrument(12) is installed on the table(26), the center of which is opened. The heater(34) is formed on the left and right parts of the clamp(22) and is stuck to the conveying guide(32).
Patent KR-20010091529-A (KR)
Title: Dual mass vibration damping flywheel for vehicles
Inventor: JUN SEUNG GYEONG
IPC: F16F15/30
Filed: 2000-03-16
Abstract: PURPOSE: A vibration reducing flywheel of a vehicle is provided to damp rotational vibration of a flywheel by dividing into double mass and inserting an elastic medium, and to prevent wear of a spring by forming friction in a large area. CONSTITUTION: A double mass vibration reducing flywheel is composed of primary mass(1), secondary mass(2), two springs(4) damping by frictionizing the primary mass and a cover, a ring-shaped spring fixing unit, and a round drive plate. The primary mass is supported with the secondary mass combined with the drive plate by a rivet(13) and a bearing(10), and assembled with a rivet(14) and closed by a cap(15). The rotational force of the primary mass is increased in fluctuating torque of an engine, and the torque is increased linearly by straining a spring with relative motion of the drive plate. The spring is strained with rotating reversely in case of the torque of the engine to be relatively less than the secondary mass. The hysteresis is generated with friction between a spring and the primary mass or the cover. The restoring force is generated with fastening the end of the spring by the primary mass, the cover, the drive plate and the spring fixing unit, and with spreading to 40 angular degrees. The damper of the flywheel is tuned with the drive plate, and the driving experience is improved with reducing vibration by the restoring force of the spring.
Patent KR-20010091765-A (KR)
Title: Timing Clock Distributor
Inventor: KIM TAE GYUN
IPC: H04L7/00
Filed: 2000-03-18
Abstract: PURPOSE: An apparatus for supplying a timing clock is provided to use a reference clock of all switching network, a subscriber terminal, and an optical transmission apparatus by using an output signal. CONSTITUTION: A clock convertor(10) receives a framed E1/DS1 clock signal(1.554/2.048 Mbps) from an input end and converts it into same clock frequency(1.544/2.048 MHz). A first clock demultiplier(20) converts the clock frequency output from the clock convertor(10) into a predetermined frequency(for example, 8 KHz). A second clock demultiplier(20') receives a GPS(global positioning system) clock signal(1/5/10 MHz) from the input end and converts it into same frequency with the predetermined frequency. A frequency stabilizer(30) is provided with the output of the first and second clock demultipliers(20,20') as an inner part of the clock. The frequency stabilizer(30) includes a first switching unit(SW1) in order to select the frequency of the output reference clock signal. The output of the frequency stabilizer(30) is connected to an input end of a clock amplifier/distributor(40) including a second switch unit(SW2) in order for a user to select and distribute a framed and/or an unframed output signal from an output end(P1,P2,-Pn). A system monitoring unit(50) monitors an alarm state of the input signal, the output signal, and the whole system.
Patent KR-20000076907-A (KR)
Title: 웨이퍼 처리 로봇용 기계식 파지장치
IPC: B25J15/02
Filed: 2000-03-18
Abstract: 본 발명은 일반적으로 증가된 속도 및 가감속 상태에서 실리콘 웨이퍼와 같은 피가공재를 이송할 수 있는 로봇을 제공한다.  특히, 본 발명은 아암에 부착된 피가공재 처리부재에 피가공재를 기계적으로 압박하기 위한 로봇아암과 연관된 로봇 손목조립체를 제공한다.  상기 피가공재 죔쇠는 피가공재를 유지하고 처리부재의 선형 운동 및 급속 회전중에 피가공재에 대한 손상 및 미끄러져 나감을 방지하는데 충분한 힘을 선택적으로 부과한다.  일 실시예에서, 실리콘 웨이퍼를 고정하기 위한 죔쇠는 최소의 입자 발생 및 웨이퍼 손상으로 웨이퍼를 위치 및 유지시키기 위해 단일 고정부재에 연결되는 두 개의 죔쇠 핑거를 사용한다.  상기 죔쇠는 웨이퍼가 웨이퍼를 분배 또는 픽업하기 위해 피가공재 처리부재가 거의 완전히 전진하는 경우를 제외하고 정상적으로 조여지도도록 설계된다.
Patent KR-20000062981-A (KR)
Title: 부가의 이소시아네이트 반응성 작용가를 보유하는 분무폴리우레아 피복용 폴리아스파르트산 에스테르
IPC: C08G18/34
Filed: 2000-03-22
Abstract: 본 발명은 폴리이소시아네이트 성분 및 이소시아네이트 반응성 성분을 포함하는 피복 조성물을 제조하는 단계, 기재를 그 피복 조성물로 피복하는 단계 및 피복 조성물을 온도 100℃ 미만에서 경화시키는 단계를 포함하는 폴리우레아 피복물의 제조 방법에 있어서, 이소시아네이트 반응성 성분은 말레산 디에스테르 또는 푸마르산 디에스테르와 폴리아민 성분의 반응 생성물을 포함하고, 폴리아민 성분은 2개의 1차 아미노기와 이소시아네이트에 대해 100℃ 미만의 온도에서 반응성이 있는 1종 이상의 기타 작용기를 가진 폴리아민을 포함하며, 디에스테르 및 폴리아민 성분은 이소시아네이트 반응성기 1 당량당 디에스테르 1몰 미만의 비율로 반응되어 비반응 이소시아네이트 반응성 기가 10 당량% 이상인 반응 생성물을 생성시키는 것이 특징인 폴리우레아 피복물의 제조 방법에 관한 것이다.
Patent KR-20010093459-A (KR)
Title: Different thing removing apparatus for the speed of a current measurement system and its method
Inventor: KIM BYEONG U
IPC: G01F15/12
Filed: 2000-03-29
Abstract: PURPOSE: A contaminant removal device and a method thereof are provided to remove contaminants interfering the measurement of flow velocity and flow rate of gas from an ultrasonic sensor. CONSTITUTION: A contaminant removal device removes contaminants(2) stuck on flow velocity measuring devices(5S,5R) of a system measuring flow velocity and flow rate of fluids. A second housing(113) spacedly surrounding a first housing(13) surrounding the flow velocity measuring devices, a valve(120) regulating the pressure of gas blown between the first housing and the second housing, and a control unit(130) controlling the opening and closure of the valve are included in the contaminant removal device. While measuring the flow velocity and flow rate of the gas flowing through a pipeline(1) by analyzing the reception signals related with driving pulses, the control unit inputs a control signal to a valve controller(125) depending on the determined period. Then, the valve controller operates the opening and closure of the air purge valve(120) with response to the control signal. If the air purge valve is opened by the valve controller, clean air is delivered to head parts(6) of the ultrasonic sensors(5S,5R) through a path(111) formed by the first housing and the second housing. With the pressure of the air, the contaminants stuck on the head parts of the ultrasonic sensors are removed. Accordingly, contaminants are removed without stoppage of gas flow.
Patent KR-20010094479-A (KR)
Title: Apparatus for detecting gradient of piston automatically in gas holder
Inventor: YOEN SANG HUI
IPC: G01B7/00
Filed: 2000-03-31
Abstract: PURPOSE: A device for automatically monitoring a piston horizontality of a gas holder at a remote place is provided to resolve the temporal blanks in the periodical monitoring of the piston inclination by carrying out the monitoring in real time, and prevent any safety accidents due to the harmful gas or the work at a high place by immediately informing any abnormal state to a worker in an operation room. CONSTITUTION: A device for automatically monitoring a piston horizontality of a gas holder at a remote plate includes a plurality of manometers(30) mounted at a side of a piston(20) in a main body(10) of a gas holder for detecting horizontality of respective parts when the piston is lifting or lowering, pressure detecting units for detecting changes in the water head pressure of the respective manometers, an operation control part(40) for determining an inclination of the piston according to measurement values of the water head pressure of the manometers for generating warning and control signals, and a pressure indicator(41) for displaying the water head pressure detected by the respective manometer and the inclination of the piston according to the control of the operation control part.