baber/WOPTO huggingface dataset:
Patent KR-20000065297-A (KR)
Inventor: LEE DONG SEO
IPC: H01L21/66
Filed: 1999-04-01
Abstract: PURPOSE: A head pin structure of a handler is provided to enhance test speed and increase productivity by correctly pushing a latch for loading a device to a carrier module. CONSTITUTION: A head pin assay comprises a head pin assay body, support guides provided at both sides of a head pin assay body, and a number of head pins arranged with a certain distance in the lower part of the head pin assay body with two rows. A head pin tip having extrudes at the end is inserted into the lower part of the head pin and can be displaced up and down. The lower part of the head pin is positioned between the lower part of the head pin and the protrudes of the head pin tip and can be freely pushed by the elasticity of the spring. The head pin is arranged in two rows longitudinally and in a number of rows horizontally. When the latch of the carrier module is pushed, the latch can be opened correctly due to the elasticity of the spring and the head pin.
Patent KR-19990083088-A (KR)
Title: Ｅｃｃ데이터를 내부적으로 생성할 수 있는 원칩마이크로컴퓨터
IPC: G06F15/78
Filed: 1999-04-09
Abstract: 자동차에 사용되는 원칩마이크로컴퓨터에 있어서, 에러정정코드데이터가 대응하는 사용자데이터에 부가되며, 에러정정코드데이터가 부가된 사용자데이터는 곧 EEPROM에 저장되어 사용자데이터에 담긴 1비트에러를 정정한다.  원칩마이크로컴퓨터는, 외부적으로 공급되는 사용자데이터 및 이 사용자데이터에 대응하는 ECC데이터를 그 자신에 임시적으로 저장하기 위한 전기적으로 소거가 가능한 메모리; 프로그램을 사전에 그 자신에 저장하기 위한 프로그램저장메모리; 및 프로그램저장메모리로부터 프로그램을 독출하여 외부적으로 공급된 사용자데이터에 기초하여 ECC데이터를 생성하고, 외부적으로 공급된 사용자데이터에 대응하는 ECC데이터들을 이용하여 외부적으로 공급된 사용자데이터에 담긴 에러들을 순차적으로 정정하기 위한 CPU에 의해 구성된다.
Patent KR-20000023873-A (KR)
Inventor: KIM UK JIN
IPC: C10L1/00
Filed: 1999-04-09
Abstract: PURPOSE: Liquid fuels containing increased dissolved oxygen and process for preparing them are provided which raise the combustibility of fuels simply and reduce the occurrence of carbon monoxide. CONSTITUTION: Liquid fuels containing increased dissolved oxygen are prepared by putting a liquid fuel storage tank containing a liquid fuel, e.g., gasoline, kerosine, light oil, and heavy oil into a hyperbaric oxygen generator and blowing oxygen gas or air into the liquid under a pressure of 10 to 100 atm. 450 ml-oxygen/100ml-liquid fuels is dissolved in the liquid fuels when they are subjected to the oxygen generator having 200 atm. As the amount of dissolved oxygen in the liquid fuel is increased and its combustibility becomes higher than the untreated ones. In addition, the liquid fuels containing increased dissolved oxygen are more stable and the highly stabilized condition can be lasted for a long time.
Patent KR-19990046720-A (KR)
Title: 휘발성유기화합물및악취를제거하기위한쌍방향흐름형생물학적제거장치
IPC: B01D53/84
Filed: 1999-04-19
Abstract: 본 발명은 석유화학 공장, 도장 공장, 식품 가공공장, 폐기물 중간처리장, 분뇨/하수 처리장 등 각종 사업장에서 발생하는 벤젠, 톨루엔, 크실렌, 에틸벤젠, 페놀 등의 휘발성 유기화합물질(Volatile Organic Compounds, 이하 VOCs)과 유황계 및 질소계 악취물질을 생물학적으로 제거하는 방법 및 장치에 관한 것이다. 
     본 발명은 미생물이 부착된 세라믹 또는 플라스틱 링 등으로 이루어진 필터를 하우징내에 충전시키고 VOCs 및 악취물질이 포함된 폐가스를 하우징 내부의 상기 필터에 통과시켜서 악취 폐가스를 정화시키는데 있어서, 상기 가스가 상기 필터의 양쪽 방향으로부터 선택적으로 교대로 유입될 수 있도록 함으로써, 충전재 표면에 부착된 미생물의 농도/분포 및 미생물 막(biofilm)을 반응기 전체에 일정하게 유지시켜 폐가스중의 VOCs와 악취물질을 효과적으로 제거하는 기술이다.
Patent KR-20000066803-A (KR)
Inventor: JUNG JAE GWAN
IPC: H01L27/04
Filed: 1999-04-21
Abstract: PURPOSE: An electrostatic discharge protecting device is provided to improve electrostatic discharge characteristics by connecting a highly doped impurity region, formed below a highly doped impurity region coupled with a pad, to a barrier insulation film of an SOI substrate. CONSTITUTION: An electrostatic discharge protecting device comprises a plurality of isolation films(33) which are formed at an SOI substrate consisting of stacked silicon substrate(30), a buried insulation film(31) and p-well(32). At one side of the n-well(32), first n+ impurity regions(34a) are formed at both sides of the isolation film(33), which is located at a region in which a NPN bipolar transistor is to be formed. A p+ impurity region(35) is formed at the other side of the p-well(32). A second n+ impurity region(34b) is formed under the first impurity region(34a) to be connected to a pad, and is connected with the buried insulation film(31).
Patent KR-20000067565-A (KR)
Inventor: KIM JAE GWAN
IPC: C21D8/12
Filed: 1999-04-29
Abstract: PURPOSE: A method for manufacturing high magnetic flux density directional electric steel plate is provided to improve the productivity by securing excellent magnetism and simultaneously performing first recrystallization, decarburizing annealing, nitriding annealing. CONSTITUTION: A method for manufacturing high magnetic flux density directional electric steel plate includes the steps of preparing a slab consists of 0.025 to 0.08 weight % C, 2.5 to 4.5 weight % Si, 0.020 to 0.040 weight % Sol-Al, 0.0150 weight % below N, 0.07 to 0.25 weight % Mn, 0.005 to 0.015 weight %, 0.0005 to 0.0010 weight %, Fe, and inevitable impurities; heating the slab at slab heating temperature obtained the following formula within the range from 1150 to 1325°C for 1 to 4 hours, £formula| slab heating temperature is equal to or more than Ts-20 and is equal to or less than Ts+20, target temperature=1250+10x(Teq-1205)xS/Mn, wherein Mn and S denote content of constituents within the slab, Teq denotes complete balance employment temperature Mn and S; obtaining a cold plate by performing hot rolling, preliminary annealing, cold rolling with the heated slab; simultaneously performing first recrystallization, decarburizing annealing, nitriding annealing with the cold plate at the atmosphere of mixed gas including nitrogen at 900 to 1050°C for 1 to 10 minutes; and performing final annealing with the cold plate.
Patent KR-20000072864-A (KR)
Inventor: CHOI KYOO YONG
IPC: G06F7/60
Filed: 1999-05-01
Abstract: PURPOSE: A processor for diffusing a chaos spectrum in a multiplex communication is provided for installing an up counter or a down counter into one chip CPU for thereby performing an integer computation and enhancing a computation capability of a computer. CONSTITUTION: A minimum size industrial universal CPU is a 4-bit construction chip. The size of a program execution file size formed of a C-language of UNIX or windows is 2.5KB. It is possible to easily install using a complier provided as a development support tool. One chip becomes one digit computation cell. A program and the table of y(t)-α are installed into the industrial universal CPU of the 8-bit or 16-bit construction as a database.
Patent KR-20000028569-A (KR)
Inventor: LOVEBRIGHT HENRY A
IPC: A23L7/109
Filed: 1999-05-06
Abstract: PURPOSE: A bowl is provided to improve the efficiency and uniformity of a microwave cooking of a liquid containing food and to boil the liquid while preventing boiling over. CONSTITUTION: A bowl(10) is placed on a tray(47) of a microwave oven(40), then a microwave energy is flowed into the oven from a supply slot(46) and a portion of the energy is radiated in the direction of an arrow(41). The energy is reflected on a wall(44) in the direction of the other arrow(42) and then on the bottom in the direction of the other arrow(43). Accordingly, the energy faces inward via a circular section of a push-up(12) and heats the content(50). The geometrical shape of the bowl is to control the boiling without boiling over when the content is heated sufficiently. The boiling control is performed by the uniform distribution of the heat without a sharp corner in the bowl and the tapered side face(18). Thereby, the bumping of materials and objects is prevented, and the danger of boiling over can be minimized.
Patent KR-20000074342-A (KR)
Inventor: SUH SUNG KYU
IPC: B01J38/04
Filed: 1999-05-20
Abstract: PURPOSE: Pre-treatment method of metal-phthalocyanine catalyst is provided which uses mixed gas of air and organic solvent so that pre-treatment is possible at remarkably lower temperature than preexisting method. CONSTITUTION: The pre-treatment method of metal-phthalocyanine catalyst comprises the steps of: (i) injecting metal-phthalocyanine catalyst whose metal component is Co, Cu, Mn, Zn or Fe into a closed reactor at 350-450°C.; and (ii) flowing pre-treated gas to the reactor to treat the metal-phthalocyanine catalyst wherein the pre-treated gas is prepared by mixing air and one organic solvent gas selected from methanol, acetaldehyde, toluene, benzene or xylene.
Patent KR-19990088538-A (KR)
Title: 반도체장치의제조공정에서의패터닝방법
IPC: G03F7/40
Filed: 1999-05-25
Abstract: (목적) 화학증폭계 레지스트의 레지스트 패턴의 변형을 방지하여, 소망하는 바람직한 개구 패턴을 얻으며 반도체 장치의 수율, 생산성을 향상시키고자 한다. 
     (구성) 반도체 장치의 제조공정에서, 반도체 기판상의 절연막 (3+4) 상에 화학증폭계 레지스트층 (5) 을 형성하고, 이 화학증폭계 레지스트층을 패터닝하여 개구부 (6) 를 형성하고, 패터닝된 화학증폭계 레지스트층을 마스크로 하여 반도체 기판상의 절연막 (4) 을 습식 에칭하여 절연막 (4) 을 패터닝하는 방법이다.    이러한 방법에서, 상기 습식 에칭을 실시하기 전에 상기 패터닝된 화학증폭계 레지스트층 (5) 에 표면 처리를 실시하여 불용화층 (7) 을 형성하여 화학증폭계 레지스트의 습식 에칭 내성을 향상시킨다.     이렇게 해서 화학증폭계 레지스트막 (5) 의 레지스트 패턴의 변형을 방지하여, 절연막 (3+4) 에 소망하는 바람직한 개구 패턴을 형성할 수 있다.
Patent KR-20010001614-A (KR)
Inventor: AU KYUNG HYE
IPC: E04C2/26
Filed: 1999-06-07
Abstract: PURPOSE: A natural fiber reinforcing complex wall material and a producing method thereof are provided to replace a wet material with a dry material and to reduce a constructing cost. CONSTITUTION: A natural fiber reinforcing complex wall material(W) parallelly arranges two side walls(1,1') and vertically arranges a partition(3) along the side walls. A combining groove(4) is formed along the circumference of the side walls. The wall material has horizontal strength due to the two side walls and has vertical strength due to the partition. The partitions compose a compartment with an insulating layer. The wall materials are easily combined each other by more than one combining sill.
Patent KR-20010001784-A (KR)
Inventor: OH YONG GUK
IPC: B66B25/00
Filed: 1999-06-08
Abstract: PURPOSE: An operation information display device and method of an escalator are provided to easily observe an operation direction by passengers which uses the escalator regardless of whether inner and outer side decks are transparent. CONSTITUTION: An input circuit inputs state signals for an operation switch and a safe system switch. An input detector detects the state signals from the input circuit. A comparison and judgment processor compares and judges an operating direction and state based on the data detected by the input detector. An operation controller determines operation and communication states of the escalator based on data produced by the comparison and judgment processor. A series communication section transmits the signal outputted from operation controller to a display section controller. A series communication section receives and processes the data from the series communication section. A display device controller receives data from the series communication section and determines a display data and color tone.
Patent KR-20010003298-A (KR)
Inventor: KANG YEONG JO
IPC: H01L21/203
Filed: 1999-06-22
Abstract: PURPOSE: A method for supplying a process condition to a physical vapor deposition(PVD) apparatus is provided to perform a PVD process regardless of a mapping error and a horizontal error that can be generated when a cassette is supplied to the PVD apparatus, by supplying the process condition to the PVD apparatus before the cassette is provided. CONSTITUTION: An on-line state is established between an equipment server and a physical vapor deposition(PVD) apparatus. The PVD apparatus requires a cassette supply request of the equipment server, and the server requires a cassette supply request of an automatic transfer robot. The server transfers a process condition to the server. The automatic transfer robot supplies a cassette to the PVD apparatus. A wafer contained in the cassette supplied from the automatic transfer robot is processed in the PVD apparatus, and process data generated in processing the wafer is transferred to the server. The automatic transfer robot withdraws the cassette from the PVD apparatus.
Patent KR-20010003809-A (KR)
Inventor: KORMAN GREGORY SCOT
IPC: D06M11/80
Filed: 1999-06-25
Abstract: PURPOSE: A silicon molten impregnated complex including fibers coated with a silicon-doped boron nitride is provided to have an enhanced anti-oxidation property in anhydride or hydride conditions. CONSTITUTION: First, a pre former including a mixture of matrix components containing particles selected from a group consisting of fibrous material coated with a silicon-doped boron nitride film, carbon, silicon carbide and blend thereof is selected. Then, high dense silicon-silicon carbide matrix complex is prepared by implementing the pre former with at least molten silicon. Therefore, the tensile strength of the silicon-silicon carbide matrix complex reinforced with fibrous material is increased. The fibrous material is selected from a fiber, a filament, a strand, a bundle, a whisker, a cloth, a pelt and a combination thereof.
Patent KR-19990073301-A (KR)
Title: 황토를이용한가구용부재의제조방법
Filed: 1999-06-30
Abstract: 본 발명은 황토를 이용한 가구용 부재의 제조방법에 관한 것이다. 
     이를 위하여 본 발명은, 황토를 채취하여 분쇄기로 투입, 1,000∼2,000메시의 입자로 미분쇄시키는 제 1 공정; 상기 제 1 공정을 거친 황토분말과 물을 6:4의 비율로 섞어 교반기를 통해 교반시키는 제 2 공정; 상하 1조의 로울러 장치의 상기 용기 안으로, 황토분말액을 채워 넣는 제 3 공정; 나무판의 상하에 0.01∼0.03mm의 두께로 황토분말액이 코팅되도록 하는 제 4 공정; 열풍기에서 5∼8시간 동안 건조시키는 제 5 공정; 나무판의 상하 표면을 연마시키는 제 6 공정; 표면에 하도로써 투명 우레탄액을 칠하는 제 7 공정; 우레탄 코팅면을 다시 #220∼300 샌드페이퍼로 10∼15회 연마시키는 제 8 공정; 상도로써 투명 우레탄을 칠하여 열풍건조시키는 제 9 공정; 나무판을 가구용 부재로 사용할 수 있도록 필요한 치수대로 절단하는 제 10 공정; 가구용 부재들의 세로면에 상기 황토분말액을 0.01∼0.03mm의 두께로 칠하는 제 11 공정; 열풍기에서 5∼8시간 동안 건조시키는 제 12 공정; 세로면 표면을 #220 샌드페이퍼로 10∼15회 연마시키는 제 13 공정; 세로면 표면에 하도로써 투명 우레탄액을 칠하는 제 14 공정; 투명 우레탄 코팅면을 다시 #220∼300 샌드페이퍼로 10∼15회 연마시키는 제 15 공정; 상도로써 투명 우레탄을 칠하여 열풍건조시키는 제 16 공정으로 구성됨을 특징으로 한다.
Patent KR-20000063111-A (KR)
Inventor: CHOI JIN YOUNG
IPC: H01R13/10
Filed: 1999-07-13
Abstract: PURPOSE: A socket is provided to connect it to variously shaped and sized plug terminals, thereby reducing the manufacturing cost and reducing the size. CONSTITUTION: Two insertion holes(4,5) are created at a regular interval, a first and a second connection terminal(9,10) are electrically connected with plug terminals(2). In the both connection terminals, terminal parts(12) are lugged to a lower side of fixing parts(11) with elasticity, and twisted as much as a regular angle. The result brings contact with the plug terminals. Fixing support poles make the fixing parts not to be rotated. Lower ends of the terminals are rotatively coupled to an upper part of supporting parts(16). When inserting the plug terminals, the terminal parts shape the plug terminals, increasingly pushed outside. The plug terminals are consequently connected to the connection terminals regardless of shapes of the plug terminals.
Patent KR-20010009969-A (KR)
Inventor: NAM GI HYEON
IPC: B66B29/00
Filed: 1999-07-15
Abstract: PURPOSE: A handrail tension measuring apparatus is provided to prevent an accident by allowing a user to easily inspect if a suitable tension is maintained in a handrail of an escalator. CONSTITUTION: One side of a tension measuring unit(60) is connected to a free end(46) of a return guide channel(40) to measure a tension of a handrail(26) by a deforming force of the return guide channel(40) which is deformed by a friction with the handrail(26). If the tension of the hand rail(26) is larger than the elasticity of the return guide channel(40), a curved portion of the return guide channel(40) moves upward. Here, the free end(46) of the return guide channel(40) moves upward while sliding with a connecting member(50), a movable bracket(64) moves upward. Then, a compressive spring(76) is compressed by first disk member(72) which is face contacting with the movable bracket(64), and second disk member(74) is transmitted with a pressure. The pressure gives a load cell(72) a pressure larger than that given before moving. The tension is displayed in a display unit(80) to measure the tension of the handrail(26).
Patent KR-20010010790-A (KR)
Inventor: LEE YOONG BIN
IPC: E02D29/02
Filed: 1999-07-22
Abstract: PURPOSE: An expansion, contraction and slip type water-stop plate is provided to secure watertightness during preventing concrete from being cracked while the water-stop plate moves up, down, left and right according to the expansion, the contraction and the differential settlement of a concrete structure. CONSTITUTION: In an expansion, contraction and slip type water-stop plate(D), a steel plate is inserted in the unvulcanized butyl rubber of bond plastic form, and a release tape is covered on the surface of the rubber. In case of construction, the water-stop plate(D) is fixed on steel of an expansion joint part by fitting closely during removing the release tape, and then fixed secondly by a binding wire, so that the water-stop plate(D) is prevented from being lowered and bent during concreting(E,E'). The water-stop plate(D) is formed by laying two panels to be folded more than 50cm and bonding, so that the concrete(E,E') is prevented from being cracked because the water-stop plate moves up, down, left and right in case of expansion(a), contraction(b) and differential settlement(c).
Patent KR-20000011958-A (KR)
Inventor: NABIKA YASUHIRO
IPC: H01C17/30
Filed: 1999-07-24
Abstract: PURPOSE: A ceramic for PTC thermister is prepared which has a good reproductivility and lower room temperature specific resistance. CONSTITUTION: The composite material comprises 30- 97 mol % of BaTiO3, 1- 50 mol % of PbTiO3, 1- 30 mol 5 of SrTiO3 and 1- 25 mol % of CaTiO3 as main component. The composite material also contains 100 ml of main component and Sm compound containing 0.1- 0.3 mol of Sm, Mn compound containing 0.01- 0.03 mol % of Mn and Si compound containing 0- 2.0 mol % of Si as additives. The composition is sintered at neutral atmosphere of reducing atmosphere and heat-treated at oxidizing atmosphere to give the ceramic composite material.
Patent KR-19990078736-A (KR)
Title: 고출력 엘이디 패키지의 제조 방법
IPC: H01L23/28
Filed: 1999-08-03
Abstract: 본 발명은 고출력 적외선 LED(Light Emitting Diode) 패키지의 제조 방법에 관한 것으로, 열 방출이 우수한 스템(stem) 상에 금속 패턴이 형성된 부도체를 형성하고 부도체 상에 서로 다른 광 파장을 가진 LED를 여러 개 배치한다. LED들은 직렬 및 병렬로 전기적 연결을 하고 확산제가 들어있는 에폭시로 LED를 덮고 에폭시의 전면에 렌즈를 배치한다. 렌즈와 에폭시 사이에는 고정용 링을 사용하여 렌즈를 고정하고 렌즈의 둘레에 빛의 산란을 방지하기 위하여 검은색의 차광막을 형성한다. 스템의 하부에는 열 방출을 용이하게 하기 위해서 방열판을 붙이는 단계를 구비한다.
Patent KR-20010017751-A (KR)
Inventor: CHOI GWANG JAE
IPC: A01C15/00
Filed: 1999-08-13
Abstract: PURPOSE: Provided is a slurry-state animal excretion fertilizing apparatus, which can prevent the generation of bad smell and the contamination of river, by fertilizing the slurry-state animal excretion in the soil when chisel plows dig up the soil. CONSTITUTION: The fertilizing apparatus comprises a connection part(11) to connect the front part to a tractor, a frame(1), a slurry storage tank(2) mounted on the back part of the frame(1), wheels(3) mounted on the both back side of the frame(1), a plurality of the chisel plows(4) mounted under the front part of the frame(1), a lifting means(5) to lift the chisel plows up and down, a pump(6) mounted on the front part of the frame(1), a pump driving means(7), a slurry supplying means(8) to supply the slurry to the chisel plows(4) from the slurry storage tank(2).
Patent KR-20010017792-A (KR)
Inventor: LEE MIN SU
IPC: C01B39/00
Filed: 1999-08-14
Abstract: PURPOSE: Provided is a process for eliminating organics from air or water efficiently by hydrophobic zeolite with carboxyl(R-COOH) group or cyanic(R-C≡N) substituted for Ca, Na, K or Cs of A-type zeolite. The resultant zeolite has high adsorption and is easy for controlling hydrophobic intensity required for deodorants, water-purifying agents and filter for air cleaner. CONSTITUTION: The process comprises the steps of; removing water from Ca, Na, K or Cs-substituted A-type zeolite by heating at 100-250deg.C and vacuum-drying at 250deg.C; substituting it by carboxyl(R-COOH) group or cyanic(R-C≡N) group; transforming the functional group of substituted organics.
Patent KR-20010018881-A (KR)
Inventor: PARK DONG IL
IPC: G06Q50/00
Filed: 1999-08-23
Abstract: PURPOSE: A portal site construction method is provided to store information for web pages to be made for organized members, to construct the web pages based on the stored information if a user requests making the web pages and transmit the web pages to the user. CONSTITUTION: The method comprises steps of a user registering himself at a service site by transmitting text data, graphic data and a web page type need for making the web page to a web server, the web server accepting the transmitted data, the web server storing the data at a database, a client requesting a web page of a specific member, the web server making the requested web page based on the stored data input at a registration step, the web server transmitting the made web page to the client. The method can be applied to individual products besides the members.
Patent KR-20000022997-A (KR)
Inventor: ALTHAUSEN FERDINAND
IPC: A63H9/00
Filed: 1999-09-09
Abstract: PURPOSE: A product containing an expansible and flexible cover and a method for preparation thereof are provided, which product is used for production of the flawless product in appearance such as a toy animal, a doll, a ball, a cushion and a headrest of a car. CONSTITUTION: A product containing an expansible and flexible cover comprises a flexible cover(3) equipped with each blank(1,2) connected with a seam(4), and a soft foam filler(11); and is constructed such that an opening(7) is nearly closed by pulling the short part(9) of at least one thread(8) provided to one seam, and the connecting part(5,6) of a thread and a steam is permanently fixed and combined in the inside of a cover by a reaction mixture and/or the cured soft polyurethane foam material(11). The thread(8) preferably contains a monofilament yarn(8).
Patent KR-20010028005-A (KR)
Inventor: SONG GI YEONG
IPC: G01R31/26
Filed: 1999-09-17
Abstract: PURPOSE: A socket contact apparatus of a test handler is provided to shorten test time by forming press unit integrally which presses a semiconductor chip upon test of characteristic of the semiconductor. CONSTITUTION: A socket contact apparatus of a test handler has a base(10), a press unit(100) and a fixed block(12). A chip holding part for holding a semiconductor chip(102) is formed the base(10). The press unit(100) is formed on upper part of the base(10) and presses the semiconductor chip(102) held in the base(10). The fixed block(12) is fixed on upper part of one side of the base(20). The fixed block(12) has one and more actuator(14) for push the press unit(100). The actuator(14) is cylinder for pushing the press unit(100) forward.
Patent KR-20010036726-A (KR)
Inventor: KIM JEONG TAE
IPC: C02F11/12
Filed: 1999-10-11
Abstract: PURPOSE: A washing device of filter cloth for a sludge dewatering equipment is provided, which can wash filter cloth, even the opening of mesh, by spraying water through water spraying nozzles and by atomizing air through air atomizing nozzles on the moving filter cloth beneath with the angles of nozzles rotating. The washing also can prevent any clogging of the water nozzles by co-atomizing of air. CONSTITUTION: The system comprises the followings: (i) a water spraying pipe (10) with many nozzles (11) at the bottom, which is mounted on a bearing (33) and a pinion (30) and has a water supply system that is connected to the water chamber at one end bottom and connected to a water pump (13); (ii) an air spraying tube (20) which has many nozzles (21) at the bottom which is inserted into the water spraying pipe (10) and has an air supply system that is connected to one end of air spraying tube (20); and (iii) filter cloth (40) to be cleaned.