baber/WOPTO huggingface dataset:
Patent KR-20010075609-A (KR)
IPC: C08J5/00
Filed: 1999-09-23
Abstract: 에틸렌/알파-올레핀/디엔 단량체 탄성중합체를 기재로 하는 모터 자동차 부품은 우수한 저온 압축영구변형성을 나타낸다.  우선, 비정질 영역에서의 이와 같은 압축영구변형성은, 비정질 영역이 도달되는 경우, 에틸렌 함량에 대해 비-반응성인 것으로 여겨진다.  그러나, 특정 범위에서, 에틸렌 함량은 비정질 영역에서도 저온 압축영구변형성에 대해 영향을 나타내는 것으로 보인다.  이러한 모터 자동차 부품은 극단적인 주변 온도가 발생하는 곳에서 특히 유용한다.  바람직한 양태에서, 본 발명은 에틸렌/α-올레핀/디엔 탄성중합체성 중합체를 포함하는, 브레이크 부품 또는 벨트와 같은 자동차 부품에 관한 것이다.  탄성중합체는 낮은 에틸렌 함량을 가지고, 탄성중합체성 중합체를 기재로 하는 컴파운드로부터 제조된 자동차 부품은 개선된 저온 압축영구변형성을 가질 것이다.  자동차 부품은, 에틸렌이 50 내지 60 몰%로 존재하고, 에틸디엔 노르보넨이 0.2 내지 5 몰%로 존재하고, 프로필렌, 헥센-1 및 옥텐-1중에서 선택된 α-올레핀이 탄성중합체의 나머지를 형성하는 탄성중합체를 포함한다.  탄성중합체의 에틸렌 조성은, 중합체 분획의 90% 내의 에틸렌이 ±4중량% 이하로 변화될 수 있도록 한다.  Mw/Mn은 2 내지 4의 범위이거나, 고유 점도는 1.2 내지 3.2이고, 125℃의 무니 점도(1+4)는 10 내지 80이다.  자동차 부품은 80% 미만의 -40℃에서의 순간 압축영구변형성을 가질 것이다.
Patent KR-20010081096-A (KR)
IPC: C07D239/00
Filed: 1999-10-13
Abstract: 하기 화학식 I의 아미노-치환 디하이드로 피리미도 [4,5-d]피리미디논 및 그의 약학적으로 허용가능한 염은 단백질 키나제 저해제이다.  이들은 염증, 면역학적 질환, 종양학적 질환, 기관지폐 질환, 피부 및 심혈관의 치료 또는 예방, 천식, 중추 신경계 질환 또는 당뇨병 합병증의 치료, 또는 이식 수술 후 이식 거부의 예방에 사용될 수 있다: 
     화학식 I 
     
       
     
     상기 식에서, 
     R 1 은 수소, 저급 알킬, 아릴, 아릴-저급 알킬, 헤테로아릴, 헤테로아릴-저급 알킬, 저급 사이클로알킬 또는 사이클로알킬-저급 알킬이고; 
     R 2 는 저급 알킬, 아릴, 아릴-저급 알킬, 헤테로아릴, 헤테로아릴-저급 알킬, 저급 사이클로알킬 또는 저급 사이클로알킬-저급 알킬이고; 
     R 3 은 수소, 저급 알킬, 아릴, 아릴-저급 알킬, 헤테로아릴, 헤테로아릴-저급 알킬, 저급 사이클로알킬, 저급 사이클로알케닐 또는 저급 사이클로알킬-저급 알킬이다.
Patent KR-20020012163-A (KR)
IPC: H01L21/318
Filed: 2000-02-29
Abstract: 높은 유전 상수들을 가지는 절연 물질 생산 방법이 설명되며, 여기서 상기 높은 유전 상수 물질은 웨이퍼 생산 또는 준비 중에 상기 반도체 웨이퍼 표면 상에 형성되는 낮은 유전 상수 유전 물질층을 제거하기위해 처리된 반도체 표면 상에 증착된다. 일반적인 웨이퍼 준비 중에 상기 반도체 기판 상에 옥사이드층이 형성된다. 상기 옥사이드는 원하는 높은 유전 상수 절연체보다 낮은 유전 상수를 가지며, 상기 기본 옥사이드층의 존재는 젖체 절연막의 유전 상수를 낮춘다. 본 발명의 방법들은 옥사이드 환원 물질을 포함하는 환경에서 상기 웨이퍼를 가열하는 단계를 포함한다. 상기 옥사이드 환원 물질은 상기 반도체 기판을 화학적으로 환원시키며, 그로인해 상기 웨이퍼 표면 상의 옥사이드 존재 양을 줄인다. 그 다음, 높은 유전 상수 물질들은 높은 유전 상수 절연 물질의 유전 상수에 거의 근접하는 유전 상수를 가지는 전체 절연막을 가지도록 증착된다. 따라서, 상기 절연막들은 더 얇아질 수 있고, 그에 따라 상기 반도체 웨이퍼 상에 고전압 구성요소들이 더 근접하게 생산될 수 있도록 하며, 이는 디바이스 밀도를 증가시키고, 효율을 증가시키며, 생산 비용을 줄인다.
Patent KR-20020028875-A (KR)
Title: Porcine reproductive and respiratory syndrome vaccine, based on isolate JA-142
IPC: C12N7/04
Filed: 2000-04-21
Abstract: Substantially avirulent forms of atypical porcine reproductive and respiratory syndrome (PRRS) virus and corresponding vaccines are provided which result from cell culture passaging of virulent forms of PRRS. The resultant avirulent atypical PRRS virus is useful as a vaccine in that PRRS specific antibody response is elicited by inoculation of host animals, thereby conferring effective immunity against both previously known strains of PRRS virus and newly isolated atypical PRRS virus strains. The preferred passaging technique ensures that the virus remains in a logarithmic growth phase substantially throughout the process, which minimizes the time required to achieve attenuation.
Patent KR-20030061120-A (KR)
IPC: B66B29/00
Filed: 2002-01-10
Abstract: 본 발명은 승객수송장치의 발판 이탈감지장치에 관한 것으로서, 소정 간격을 두고 상호 나란하게 소정 거리 이격배치되는 레일과, 상기 레일 사이에 상기 레일을 따라 이동가능하게 배치되는 복수의 이동발판을 구비한 승객수송장치의 발판 이탈감지장치에 있어서, 상기 이동발판의 일측에 상하방향을 따라 배치된 회전축을 중심으로 상기 이동발판의 측부에 접촉되어 회전가능하게 배치되는 감지롤러와;  상기 회전축을 지지하는 슬라이더와;  상기 슬라이더를 상기 이동발판의 이동방향 및 상기 이동발판의 두께방향을 따라 유동되는 것을 억제함과 동시에 상기 감지롤러가 상기 이동발판측에 접근되는 방향으로 슬라이딩 가능하게 상기 슬라이더를 지지하는 슬라이더지지부재와;  상기 감지롤러가 상기 이동발판의 측부에 탄성적으로 접촉될 수 있도록 상기 슬라이더에 탄성력을 가하는 스프링부재와;  상기 감지롤러와 상기 이동발판의 상호 접촉유무를 감지하는 감지수단을 포함하는 것을 특징으로 한다.  이에 의해, 내구적이고 안정적으로 동작되며 유격 및 변형 발생과 그에 기인한 구동소음의 발생을 억제시킬 수 있는 승객수송장치의 발판 이탈감지장치가 제공된다.
Patent KR-20030060644-A (KR)
Title: Sterilizatoin method using atmospheric plasma
Inventor: LEE GEUN HO
IPC: A61L2/14
Filed: 2002-01-10
Abstract: PURPOSE: Provided is a method for sterilizing pathogenic microorganisms using plasma at atmospheric pressure, which is harmless to environment since it does not generate harmful substances and shortens sterilization time. CONSTITUTION: The sterilization method is conducted using plasma at atmospheric pressure. More concretely, the method is conducted by sterilizing pathogenic microorganisms with active radicals generated by an atmospheric plasma generating apparatus. The plasma generating apparatus has a chamber and an article to be sterilized is placed in the chamber. In the chamber, the article is sterilized using active radicals generated by plasma. When an article to be sterilized is packed in a sterilization bag, the bag is placed in the chamber and the article is sterilized by gas discharge.
Patent KR-20030063828-A (KR)
Title: A humidifier for a vehicle
Inventor: LEE HEON HO
IPC: B60H3/02
Filed: 2002-01-24
Abstract: PURPOSE: A humidifying apparatus for a vehicle is provided to keep the room of the vehicle pleasant and improve driver's driving ability by supplying vapor to the room and keeping proper humidity. CONSTITUTION: A humidifying apparatus for a vehicle(60) comprises a humidifying sensor(20) disposed in the room of the vehicle, an alarm output unit(30), a humidifying unit(40), and a microcomputer(50). The humidifying sensor measures humidify. The alarm output unit outputs an alarm sound according to the operating signal. The humidifying unit discharges vapor produced by a heater according to the operating signal. The microcomputer receives the measured value of humidity measured by the humidifying sensor, compares the measured value with a predetermined humidity value, and makes an operating signal if the compared value is over a permitted limit. An operating switch to manually operate the humidifying unit is installed to the humidifying unit.
Patent KR-20030065874-A (KR)
IPC: B05D1/26
Filed: 2002-02-01
Abstract: 트리밍(trimming)후의 수지피막의 귀부(lug portion)의 리사이클을 가능하게 하여, 더욱, 식어지면 취약한  수지계에서도 용이하게 트리밍 되며, 게다가, 라미네이트된 판의 양측의 수지피막부분을 얇게 하여, 상기 라미네이트된 판의 사용효율의 향상을 꾀할 수 있는 수지피막의 트리밍 방법을 제공한다. 
     적어도 기재의 한 면에 코팅롤(coating roll) 사이를 통해서 용융수지를 피복할 때에, 수지피막의 귀부가 식어지지 않는 동안에, 상기 귀부의 트리밍을 행한다. 이때, 수지피막이 폴리에스테르수지인 경우, 귀부의 온도가 (Tg-20℃)이상의 상태인 때에 트리밍을 행하면, 트리밍을 용이하고 또한 확실히 할 수 있다. 또한, 기재폭<탄성체폭으로 하여, 코팅롤의 탄성력에 의한 니프압(nip pressure) 및 기재의 에지부에서 귀부의 트리밍을 행하거나, 기재폭>탄성체폭으로 하여, 가이드벨트의 탄성력에 의한 니프압 및 기재의 에지로 귀부의 트리밍을 행하거나 하면, 기재와의 간섭의 위험을 회피 할 수 있다.
Patent KR-20020067626-A (KR)
Title: Insulating film
Inventor: FURUTA MOTONOBU
IPC: H01B3/42
Filed: 2002-02-07
Abstract: PURPOSE: Provided is an insulating film which is excellent in heat resistance and electric insulating property, additionally is cheap, and is particularly useful as insulating resin film for a film condenser. CONSTITUTION: The insulating film is obtained by using a resin composition comprising (A) 100 parts by weight of a polyphenylene oxide having a structural unit of the following formula (1) and (B) 0.1 to 60 parts by weight of a copolymer having a functional group reactive with said polyphenylene oxide. In the formula 1, R1 and R2 represent each independently hydrogen or a hydrocarbon group which may have a substituent and has 1 to 20 carbon atoms in total. The functional group in the copolymer (B) is an epoxy group.
Patent KR-20030068337-A (KR)
Title: Eukaryotic expression vector for human gene therapy
Inventor: BYUN JONG HOE
IPC: C12N15/861
Filed: 2002-02-15
Abstract: PURPOSE: Provided is a pJDK vector which involves high cell transfection efficiency and high recombinant protein expression efficiency, and is available in making an adeno-associated virus vector for gene therapy. CONSTITUTION: A pJDK vector(KCCM 10343) contains a cytomegalovirus (CMV) promoter, an inverted terminal repeat (ITR) of an adeno-associated virus, a bovine growth hormone (BGH) polyadenylation signal, and kanamycin resistance gene. A target gene is expressed by introducing the pJDK vector in a cell. The cell is an animal cell or derived from animal. A recombinant adeno-associated virus is produced using the pJDK.
Patent KR-20030068736-A (KR)
Title: Apparatus and method of forward error correction
Inventor: KIM BYEONG JIK
IPC: H04L1/00
Filed: 2002-02-16
Abstract: PURPOSE: An apparatus and a method for correcting a forward error are provided to perform a forward error correction function regardless of transmission rates by sensing automatically the transmission rates of signals having the different forward error correction transmission rates. CONSTITUTION: An apparatus for correcting a forward error includes a low pass filter(200), an AC power measurement portion(210), an algebraic amplification portion(220), a digital signal processing portion(230), a clock generation portion(150), and a forward error correction portion(120). The low pass filter is used for outputting only a low frequency element of a received signal. The AC power measurement portion converts an energy value of an output signal of the low pass filter to a DC voltage value. The algebraic amplification portion performs an algebraic conversion process for the DC voltage value. The digital signal processing portion outputs a control signal for generating a clock according to a transmission rate. The clock generation portion generates the clock according to the control signal. The forward error correction portion performs a forward error correction process for the received signal.
Patent KR-20030073672-A (KR)
Title: Structure for fixing magnets in reciprocating motor
Inventor: HAN PIL WAN
IPC: H02K41/02
Filed: 2002-03-12
Abstract: PURPOSE: A magnet fixing structure is provided to achieve improved efficiency of the motor by reducing the air gap between the outer core and the inner core, while reducing manufacturing costs. CONSTITUTION: A magnet fixing structure comprises a magnet holder(50) shaped as a cylinder having a predetermined thickness and length, and which has a plurality of planes arranged along the circumference of the cylinder; and a plurality of volume reduction magnets(60) each of which has a side with a plane contact portion having an area corresponding to the plane of the magnet holder and the other side with a curved portion having a curve corresponding to the radius of curvature of the cylinder. The plane contact portion of the volume reduction magnet is coupled to the plane of the magnet holder.
Patent KR-20030075825-A (KR)
Title: The fabrication method of printed circuit board for semiconductor package having tailless pattern
Inventor: CHA SANG SEOK
IPC: H05K3/02
Filed: 2002-03-21
Abstract: PURPOSE: A method of fabricating a PCB(Printed Circuit Board) for semiconductor package having a tailless pattern is provided to perform an electric nickel/gold plating process regardless of a design for a circuit pattern and reduce the electric noise due to a tail of a finger by forming necessary patterns without using a plating lead line. CONSTITUTION: The first etching process is performed to cut a copper foil by performing a half-etching process for a substrate including a copper layer. The first imaging process is performed to expose partially the copper foil corresponding to a bonding finger forming part, a solder ball land forming part, and a circuit pattern forming part. A copper plating process is performed to form a copper plating layer on the exposed copper foil. The first strip process is performed to remove the dry film. The second imaging process is performed to expose partially the copper plating layer corresponding to a nickel/gold plating part by coating, exposing, and developing a liquid resin. A nickel/gold plating process is performed to form a nickel/gold plating layer on the exposed copper plating layer. The second strip process is performed to remove the liquid resin. The second etching process is performed to remove the copper foil without the nickel/gold plating layer and the copper plating layer. A solder masking process is performed to form a plastic layer on the remaining region except a soldering region.
Patent KR-20030078249-A (KR)
Inventor: YOON SE WANG
IPC: C12M1/34
Filed: 2002-03-28
Abstract: PURPOSE: A micro-well plate for analysis of microorganisms is provided, thereby rapidly and accurately identifying and counting microorganisms. CONSTITUTION: A micro-well plate for analysis of microorganisms has one or multiple micro-well having volume of 0.1 nanoliter to 10 microliter, wherein the number of the micro-well is 96 to 1920; and the micro-well is made of plastics, single crystal silicone or single crystal germanium. The micro-well plate for analysis of microorganisms is prepared by depositing the protection layer on both surface of a single crystal silicon wafer; coating a polish side of the wafer with photo resist; printing pattern mask on the wafer and exposing it to light; etching the exposed protection layer and removing remaining photo resist; dipping the wafer in an etching solution; and removing the protection layer.
Patent KR-20020077267-A (KR)
Inventor: HOSAKA TAIJI
IPC: H02G15/02
Filed: 2002-03-29
Abstract: PURPOSE: To easily connect a coaxial cable to an electric connector or a printed wiring board, to prevent separation of an outer conductor or a center conductor, secure shield performance of a signal conductor, and to connect an ultra-thin wire by an automatic machine. CONSTITUTION: This binding member 10 and 20 for a coaxial cable is formed in a cylindrical form to cover the outer conductor 83 or the center conductor 81 exposed from an insulation coating 82. The binding member is formed of lead-free super-high conductive plastic comprising a conductive resin composition. The electric connector 30 for the coaxial cable is provided with electric contacts 31 and 32 having receiving ports 31a and 32a to which the binding member is inserted.
Patent KR-20030080132-A (KR)
Title: Latch for notebook computer
Inventor: OH WON SEOP
IPC: G06F1/16
Filed: 2002-04-04
Abstract: PURPOSE: A latch device of a notebook computer is provided to improve a quality and a productivity of a notebook computer by improving a connection state of a display unit and a base unit and improving an operation of a latch holder by a compression spring. CONSTITUTION: One side end of a latch holder(31) is bent. An engaging projection unit(311) is formed at the other side end of the latch holder(31). The latch holder(31) is mounted at one end of a back cover(22) of a display unit. An elastic unit presses an elastic recovery power with respect to the latch holder(31). One side end of an elastic holding block is bent many times. The holding block is attached to one end of the lower case of a base unit and pressed strongly with the engaging projection unit(311). The elastic unit comprises a pressure plate which is fixed at one side of the back cover(22) of the display unit, and a compression spring(35) which is inserted between the pressure plate and a bent end of the latch holder(31) and compressed or expanded elastically.
Patent KR-20030089002-A (KR)
Title: Control box mounting structure of dehumidifier
Inventor: LEE JONG HYEOK
IPC: F24F6/00
Filed: 2002-05-15
Abstract: PURPOSE: A structure for mounting a control box of a dehumidifier is provided to allow a compressor to be easily installed on a base fan and a control box to be easily assembled by mounting the control box to a shroud. CONSTITUTION: Air passes an evaporator of a heat exchanger to be dehumidified, and passes a blowing hole of a shroud(70) to be discharged into a room as a blower works. A control box(90) is mounted to an upper side or a lower side of a side of the blowing hole of the shroud, and has an upper part hooked to the shroud, and a lower end fixed to the shroud by a bolt(96). The shroud has a hooking part(72) protrusively formed thereon. The control box has a hooked hole part(92) is formed on an upper part of one side thereof to allow the hooking part of the shroud to be inserted thereto and hooked thereby. Coupling holes(74,94) are formed on a lower end of one side of the control box and a corresponding part of the shroud, respectively, so that the bolt is coupled to the coupling holes to fix the one side of the control box to the shroud.
Patent KR-20020063529-A (KR)
Inventor: PARK NO EL
IPC: G06Q50/20
Filed: 2002-05-17
Abstract: PURPOSE: A system and a method for diagnosing a course are provided to find out the professional character relating to a profession of a user and to make the user effectively fit to the professional world by helping the user to select the profession. CONSTITUTION: A database tool makes the 378 professional characters into a code database. An OMR card writer writes an OMR card for searching the talent, the ability, the professional activity, the execution capability and the profession preference in order to understand the objective profession environment and the subjective professional character of the user. An extracting tool extracts the three lower codes according to the higher point order by summing and comparing the OMR card in each type. A course information providing tool provides the course information fit to the professional character of the user by calling a sheet according to the code from the files stored in the database.
Patent KR-20030091002-A (KR)
Title: A dampproof heel
Inventor: CHOI MOON KYU
IPC: A43B21/00
Filed: 2002-05-24
Abstract: PURPOSE: A shoe heel is provided to prevent foot or shoe from being permeated with sweat or unpleasant scent by forming a hollow in the heel to be filled a moisture absorbent and a fragrant dispenser. CONSTITUTION: The shoe heel comprises a hollow(1) filled with a fragrant dispenser(2a) and a moisture absorbent(2b), and a finishing sheet(3) adhered to an upper surface of the hollow(1) to allow the fragrant dispenser(2a) and the moisture absorbent(2b) to be accommodated inside the hollow(1). The finishing sheet(3) has a plurality of holes(4) through which the fragrant dispenser(2a) and the moisture absorbent(2b) emanate. The holes(4) are simply formed by forming a hole removal unit(5) which is indicated by a cutting line(5a) on the finishing sheet(3) and then removing the hole removal unit(5) using a sharp tool.
Patent KR-20020095083-A (KR)
Title: Excitation of switched reluctance motors
Inventor: ELLIOTT CHARLES RICHARD
IPC: H02P25/08
Filed: 2002-05-29
Abstract: PURPOSE: Excitation of switched reluctance motors is provided to minimize the supply current drawn for a particular output. CONSTITUTION: A method of controlling a polyphase switched reluctance motor includes a step of energizing the first phase, a step of energizing the second phase, and a step of freewheeling the first phase coincidentally with at least a portion of the period of energization of the second phase, and including initiating freewheeling of the first phase and energisation of the second phase simultaneously.
Patent KR-20030094936-A (KR)
Title: Apparatus and Method for Controlling MII Signal
Inventor: KIM HYEONG JONG
IPC: H04L12/02
Filed: 2002-06-10
Abstract: PURPOSE: A device for controlling an MII(Media Independent Interface) signal and a method therefor are provided to duplex an Ethernet path, and to use different transmission media in one network processor, thereby controlling a traffic amount when performing an MII between a physical layer and the network processor. CONSTITUTION: When many data are received through the first MII interface unit(300a) and the second MII interface unit(300b), a controller(310) decides whether the third MII interface unit(320) is used. If so, the controller(310) stores the corresponding data in a data storage(340). If the third MII interface unit(320) is not used, the controller(310) sequentially transmits the received data to a network processor. The network processor processes the transmitted data. The processed data are transmitted to the controller(310) through the MII interface unit(320). The controller(310) stores the processed data, and transmits the stored data to a physical layer through the MII interface units(300a,300b).
Patent KR-20040000053-A (KR)
Title: Billing method using telephone directory assistance history
Inventor: KIM MIN GYEONG
IPC: H04M15/00
Filed: 2002-06-21
Abstract: PURPOSE: An accounting method using telephone number guide statistics is provided to record/analyze guide details, and to generate marketing information on users requesting to guide telephone numbers, then to supply various accounting methods, thereby increasing efficiency and service benefits. CONSTITUTION: A guide statistical server reads stored guide records(301), and accumulates the number of guide times according to guide numbers. If the guide numbers do not exist on a guide recording table, the guide statistical server generates records on the guide numbers(303), retrieves a business table with a key, and brings out business codes corresponding to the guide numbers(304). The guide statistical server stores the business codes in a corresponding field of the guide recording table(305), and increases the number of guide times by 1(306). The guide statistical server repeats the whole process until stored guide records are not generated during a predetermined period(307).
Patent KR-20040000956-A (KR)
Title: Method of Making Internal Coating Composition for a Cathode Ray Tube and Internal Coating Composition for a Cathode Ray Tube Made Thereby
Inventor: PARK HYO DEOK
IPC: C09D5/02
Filed: 2002-06-26
Abstract: PURPOSE: A preparation method of an interior paint composition for a cathode ray tube, an interior paint composition prepared by the method and a cathode ray tube coated with the composition are provided, to stabilize the electrical resistance of the interior paint for a cathode ray tube by controlling the dispersibility and the electrical properties. CONSTITUTION: The method comprises the steps of dispersing 10-90 wt% of titanium alkoxide solution or iron acetate solution whose solid content is 1-30 % in 10-90 wt% of an organic solvent; dipping 3-20 wt% of graphite particle into the dispersion solution and heating it at 60-150 deg.C for 1 hour to dope the graphite particle with titanium dioxide or iron oxide; and dispersing 3-20 wt% of the doped graphite particle and 30-50 wt% of water glass as a binder in 10-30 wt% of water. Preferably the organic solvent is selected from the group consisting of toluene, methylisobutylketone, methylethylketone, ethyl acetate and xylene; and the graphite particle has a particle size of 0.1-2 micrometers.
Patent KR-20030007010-A (KR)
Inventor: SHINAGAWA HIROFUMI
IPC: B01D46/00
Filed: 2002-06-28
Abstract: PURPOSE: To provide a filter for an electric fan that is inexpensive, has high yield of non-woven fabric, can be used regardless of size of a blade guard, and has an increased dust collecting effect. CONSTITUTION: The non-woven fabric 16 is rectangular, so that the non-woven fabric 16 can be easily manufactured easily with high yield by cutting a band- like non-woven fabric, and the cost is reduced. Flat rubber bands 17 and 18 are loosely inserted into band insert parts 20 and 21 of the non-woven fabric 16, so that the non-woven fabric 16 can uniformly and sufficiently cover the entire guard regardless of the size of the blade guard 15, and tightness of a back surface part 15A by the filter 10 for the electric fan is increased and the dust collecting effect is also increased. Many gathers are produced at ends of the non-woven fabric 16 covering the inner periphery with a small diameter of the blade guard 15. The gathers increases the tightness of the non-woven fabric 16, and a collecting area is also increased by a gather forming part of the entire non-woven fabric 16. As a result, the dust collecting effect is further increased.
Patent KR-20040004948-A (KR)
Title: Butterfly Valves
Inventor: JO YOON HEE
IPC: F16K1/226
Filed: 2002-07-06
Abstract: PURPOSE: A sealing member is installed inside of a valve body without a bolt or a retainer making assembling process easy and convenient. CONSTITUTION: A butterfly valve is composed of a valve body(1), a disk(2) installed inside of the valve body, a rotation member to rotate the disk. A sealing member(3) is contacted with the outer circumference of the disk to prevent leakage of fluid. The sealing member is installed in whole inner circumference of the valve body. A protrusion is formed in inner circumference of the sealing member to be in contact with the outer circumference of the disk. Both sides of the protrusion are formed as an inclination surface.