baber/WOPTO huggingface dataset:
Patent KR-20040034281-A (KR)
Inventor: SHIN TAE SOO
IPC: F03G7/10
Filed: 2002-10-21
Abstract: PURPOSE: A method for generating rotary force using difference of weight is provided to generate rotary force by forming difference of weight between both sides of a U-shaped tube. CONSTITUTION: An apparatus includes a metal chain(31); a tube(32); a metal roller(33); a triangular support(34); liquid(35); a chain gear(36); and a roller support(37). A plurality of the metal rollers are installed to the metal chain rotated together with the tube. Width of the metal chain is slightly wider than a diameter of the tube. Circular rods are installed to joints of the metal chain, respectively, to connect the joints. The roller support is installed to every one to three joints of the metal chain. The triangular support is attached to one side of the roller support. The roller support is supported by the circular rod on a lower side thereof to be horizontal when placed on a right side of the tube, and moved upward when placed on a left side of the tube so as to allow the roller to directly press the tube. The roller has enough weight to press and flatten the tube. The tube is charged with liquid, and has the left side flattened and the right side expanded thereby to form difference of weight so that the metal chain and the tube are rotated clockwise.
Patent KR-20040037304-A (KR)
Inventor: CHO GYU SU
IPC: F25D11/04
Filed: 2002-10-28
Abstract: PURPOSE: A hinge apparatus of a storage case is provided to mount the hinge apparatus easily without protruding outside the store in compact size. CONSTITUTION: A housing is fixed to either a main body or a cover. A camshaft portion(51) is combined inside the housing. A first cam(53) is arranged to an outer surface of the camshaft portion. A hinge shaft has an extended portion(52) extended from the camshaft portion to the outside of the housing to be fixed to either the main body or the cover. A moving member(60) is combined to the outer surface of the camshaft portion, restricted of rotation. A second cam(62) is formed to the moving member opposite to the first cam. A pressure spring(70) is installed inside the housing to pressurize the moving member to the first cam. A movement restricting groove(81) is formed to either the outer surface of the hinge shaft or the housing to restrict moving range of the hinge shaft. A movement restricting protrusion(82) is formed to either the hinge shaft or the housing to approach the movement restricting groove. Thereby, exterior of the store is improved by connecting the main body and the cover without protruding a hinge apparatus(30) outside.
Patent KR-20040037365-A (KR)
Title: Method for sending short messages on schedule
Inventor: LEE HUI JEONG
IPC: H04B1/40
Filed: 2002-10-28
Abstract: PURPOSE: A method for sending a reserved text message is provided to transfer a text message successfully at a time desired by a mobile phone user. CONSTITUTION: When a mobile terminal is turned on, a CPU initializes a system(S110). The mobile terminal is in a standby state(S112). When a user selects a text message reservation and send menu, a text message desired for transmission is inputted and stored(S116). When the user finishes inputting characters and presses an ACK key, a periodical or non-periodical transmission time is received and stored(S120). The controller detects the time(S130) and determines whether a text message is reserved at the detected time(S132). If a text message is reserved at the detected time, the controller sends the text message at the corresponding reserved time(S134).
Patent KR-20040037912-A (KR)
Title: A device for automatically openning and shutting a cover of load-carrying room in a vehicle
Inventor: LA BYUNG RYEOL
IPC: B60P7/02
Filed: 2002-10-28
Abstract: PURPOSE: An automatic opening and shutting device of a loading compartment cover is provided to prevent the loading compartment cover from flapping during running, excellently cover objects loaded protrudently, reduce the cost and the weight, facilitate production, and prolong the life span. CONSTITUTION: An automatic opening and shutting device of a loading compartment cover comprises rotating guide rails(2) combined to the front and rear of a loading compartment(1), to rotate by a rotating cylinder(24); a first operating rope(3) both ends of which are interconnected; driving ropes(5,5') connected to the operating rope at a predetermined interval; and a driving cylinder(17) the body of which is fixed to the side of the loading compartment. The first operating rope is fastened to a front roller(8) of the front of the loading compartment, is hung on rear rollers(6,7) of the front of the loading compartment, is hung on rear rollers of the rear of the loading compartment after passing through the upper part of the rotating guide rails, and is fastened to a front roller of the rear of the loading compartment. The driving ropes are oppositely fastened to a roller(27) disposed to the driving cylinder and the ends of the driving ropes are fixed to the same side of the loading compartment at a predetermined interval. The driving ropes are oppositely hung on the roller of the end of a rod(28) disposed to the driving cylinder.
Patent KR-20040040681-A (KR)
Title: Wafer support of a semiconductor device fabrication apparatus
Inventor: CHOI JEONG SIK
IPC: H01L21/68
Filed: 2002-11-07
Abstract: PURPOSE: A wafer support part of a semiconductor manufacturing apparatus is provided to be capable of effectively discharging or naturally removing the electric charges stored at a wafer. CONSTITUTION: A wafer support part of a semiconductor manufacturing apparatus is provided with an electrostatic chuck(122) for chucking and supporting a wafer, a support pedestal(124) for supporting the electrostatic chuck, and a lift part(130) for loading/unloading the wafer to/from the electrostatic chuck. At this time, the lift part includes a plurality of lift pins(132) for lifting the wafer through the support pedestal and the electrostatic chuck. At the time, each lift pin is made of aluminum in order to discharge the electric charges stored at the wafer. Preferably, a wire(140) is connected with the lift pin for grounding.
Patent KR-20040041276-A (KR)
Title: Apparatus for protecting lelay of compressor
Inventor: KIM JEONG HYEON
IPC: F04B39/00
Filed: 2002-11-09
Abstract: PURPOSE: A device for protecting a relay of a compressor is provided to fix a relay cover at a bracket without a bracket stopper supporting the relay cover to the bracket, and a screw stopper for preventing transformation in shape of the relay cover. CONSTITUTION: A cylindrical bracket(120) is fixed on an outer surface of a compressor. A cylindrical relay cover(110) has a space part for receiving the cylindrical bracket inside, having one open side. A rotary combining element(130) rotatively combines the cylindrical bracket and the cylindrical relay cover. The rotary combining element includes a plurality of protruded parts(132) protruded from an outer peripheral surface of the bracket toward the outside, and a plurality of combing hole parts(131) formed on an outer peripheral surface of the relay cover to be rotatively combined with the plurality of protruded parts.
Patent KR-20040043502-A (KR)
Title: Manufacturing method of porous magnetic minerals
Inventor: SUH HEE DONG
IPC: C04B38/00
Filed: 2002-11-18
Abstract: PURPOSE: Provided is a process for producing porous magnetic minerals emitting far infrared rays and anions, which can be used for a preparation of magnetic mineral water, a microorganism culturing process, and a water culture. CONSTITUTION: The process for producing the porous magnetic minerals comprises the steps of: mixing a mineral powder with 40-60 micrometer emitting far infrared rays and anions, such as phyllite, tourmaline, elvan, jade and 10-50wt% of a ferrite(MO.nFe2O3, M=Fe, Ba, Sr, etc.) magnetic material powder with 40-60 micrometer in size; adding 0.1-0.5wt% of an inorganic binder, 0.03-0.04wt% of an organic binder, and 0.1-1.0wt% of sodium silicate and mixing; adding 2-5wt% of ammonium chloride(NH4Cl) to form fine pores and mixing to prepare a dough; making the dough sphere or ring type pellets; drying, calcining, and polarizing.
Patent KR-20040043606-A (KR)
Title: An apparatus for servo signal write and inspect for hard disk and a method for servo signal write and inspect using the same
Inventor: CHOI DONG YEOL
IPC: G11B21/10
Filed: 2002-11-19
Abstract: PURPOSE: A device for recording/verifying a servo signal of a hard disk and a servo signal recording/verifying method using the same are provided to largely shorten a work time and largely improve productivity by simultaneously advancing the works for recording and verifying the servo signal with a small time interval. CONSTITUTION: The first actuator(100) is mounted with the first head(110) recording the servo signal on a track of the hard disk(D). The second actuator(200) is mounted with the second head(210) verifying the servo signal recorded by the first head while following the track that the first actuator passes by.
Patent KR-20040046652-A (KR)
Title: A image forming apparatus
Inventor: JUN NAM GON
IPC: G03G21/00
Filed: 2002-11-28
Abstract: PURPOSE: An electrophotographic image forming apparatus is provided to prevent particles from being transferred to a charging roller. CONSTITUTION: A cleaning member(51) removes a toner image left on the surface of a charging roller(49) using a frictional force. The cleaning member is located in contact with the surface of the charging roller and formed of sponge or fiber material. The cleaning member is fixed to a supporting member(52). The supporting member is connected to a housing(44) by a fixing member(53) provided on one side of the supporting member. The fixing member is connected to the housing by a hinge(54). An elastic member(57) is placed on the top of the supporting member. The elastic member elastically biases the supporting member to the housing. The first and second stoppers(55,56) are located in proximity to the supporting member to restrict a rotating distance of the supporting member when the supporting member is rotated with respect to the housing.
Patent KR-20040051919-A (KR)
Title: Method for managing the short message in mobile station
Inventor: SEO HO JUN
IPC: H04B1/40
Filed: 2002-12-13
Abstract: PURPOSE: A short message managing method of a mobile terminal is provided to allow a user to check a short message through an auxiliary LCD and store or delete it by one time key inputting on the auxiliary LCD. CONSTITUTION: A controller checks whether a menu for managing a reception message in a standby state(300,302). When the menu for managing a reception message is selected, the controller displays a list for managing the reception message(304). The controller checks whether a 'message content display' is selected(306). When the 'message content display' is selected, the controller displays a supplementary menu for displaying a received short message on an auxiliary LCD(308). When a user sets displaying of the short message on the auxiliary LCD(310), the controller displays the supplementary menu(312). When an option for the displaying of the message content is selected(314), the controller stores the selected message content display option in a memory unit(316).
Patent KR-20040053577-A (KR)
Title: Apparatus for recycling glass flour
Inventor: KWON YEON HO
IPC: C03B3/02
Filed: 2002-12-17
Abstract: PURPOSE: Provided is a device for recovering a glass powder which can recover a sludge containing a glass powder to the optimum state for its reuse as a glass raw material. The device can effectively remove moisture from the sludge and ensure the homogeneity in particle size to improve solubility, thereby saving the cost for waste sludge disposal in an environmentally friendly way. CONSTITUTION: The device for recovering a glass powder comprises: a main body(10) having a dry chamber(15) for the glass sludge(1); a first crush means(30) installed in the upper stream of the main body, for crushing the sludge primarily; a conveying means(40) for conveying the primarily crushed sludge to the dry chamber; a heating means(50) installed in the dry chamber of the main body, for drying the primarily crushed sludge; a second crush means(70) installed in the dry chamber of the main body, for further crushing the primarily crushed sludge; a collecting means(80) for collecting the secondarily crushed sludge which is dropped out from the conveying means that conveys the secondarily crushed sludge from the secondary crush means.
Patent KR-20040055240-A (KR)
Title: Driving control apparatus and method of refrigerator in using reciprocating compressor
Inventor: BAE GYU JONG
IPC: F04B35/04
Filed: 2002-12-20
Abstract: PURPOSE: An apparatus and a method for controlling an operation of a refrigerator adopting a reciprocating compressor are provided to cut off power supply applied to an inner motor or apply the power supply to the inner motor by turning on and off a current restraining element used instead of an OLP, thereby preventing damage of a compressor. CONSTITUTION: A current restraining element(Tr1) is installed at the front end of a compressor(COMP) instead of an OLP(Over Load Protector) to control an amount of a current applied to the compressor. A driving unit(100) is installed to slowly increase a stroke in initial starting while removing a PTC(Positive Temperature Coefficient) for protecting the compressor. According to the detected stroke, the current restraining element is turned on and off periodically to change the stroke. A voltage detector(101) detects a voltage applied to the compressor. A current detector(102) detects the current applied to the compressor. A stroke estimator(103) estimates the stroke by using the voltage, the current, and a motor constant. A control unit(104) compares the stroke estimation value with a stroke reference value to apply a control signal to the current restraining element for changing the stroke accordingly.
Patent KR-20040057171-A (KR)
Title: A guardrail improved hardness and absorption of an impact
Inventor: KIM SEONG TAE
IPC: E01F15/00
Filed: 2002-12-24
Abstract: PURPOSE: A guardrail having excellent impact absorbing function and stiffness is provided to absorb impact energy effectively at a car crash and to prevent a loss of lives and physical damage. CONSTITUTION: The guardrail(20) having excellent impact absorbing function and stiffness comprises upper and lower contact parts(L4) formed on the upper and lower parts of a guardrail, a central contact part(L1) formed between the upper and lower contact parts(L4), joints(L3) coupled/supported to a post and formed among the upper/lower contact parts(L4) and the central contact part(L1), and connecting parts(L2) connecting the contact parts(L1,L4) and the joints(L3).
Patent KR-20040058443-A (KR)
Title: Method of converting VMS mode, and method of confirming received call remotely using it
Inventor: KWON TAEK JIN
IPC: H04W8/24
Filed: 2002-12-26
Abstract: PURPOSE: A method for converting into a voice mail mode and a method for confirming a receiving call in remote place by using mode conversion are provided to enable a terminal of a remote place to inform an originator that a receiver currently does not have a terminal, when a call is received in the terminal of the remote place, and to record a receiving time and the originator's telephone number, thereby immediately converting into a voice mail mode. CONSTITUTION: A user transmits an SMS including a control code to a control target terminal(201). If the SMS is received, the control target terminal is converted into a voice mail mode by the control code of the SMS(202). If a call is received in the user's terminal(203), the control target terminal outputs a preset announcement message informing an originator that the user currently does not have the terminal, and records information on the originator(204). If the control code includes a command of storing received call information by converting the call information into a voice(205), the control target terminal transmits call information and telephone number information on the originator to set terminals(206). The control target terminal converts the call information into a voice, and stores the voice(207).
Patent KR-20040059582-A (KR)
Title: Method for manufacturing the good weldability and high strength thick plate steel
Inventor: CHOI JONG GYO
IPC: C21D8/00
Filed: 2002-12-27
Abstract: PURPOSE: A method for manufacturing 60 kg grade structural thick plate with superior weldability and refined ferrite structure whose average grain size is 5 μm or less by manufacturing austenite to a grain size of 35 μm or less by static recrystallization and optimizing hot working conditions for strain induced dynamic transformation of ferrite is provided. CONSTITUTION: The method comprises a step of precipitating a precipitate by slowly cooling the cast steel after casting a steel comprising 0.02 to 0.3 wt.% of C, 1.5 wt.% or less of Si, 2.0 wt.% or less of Mn, 0.005 to 0.1 wt.% of Ti, 0.003 to 0.03 wt.% of N, 0.1<=Cr+Mo<=1.0, and a balance of Fe and inevitable impurities and satisfying the following relation: 1.2<=Ti/N<=3.4; a step of controlling grain size of austenite of the steel to 50 μm or less by reheating the slowly cooled steel in the temperature range of 1,000 to 1,250 deg.C; a step of cooling the static recrystallized steel after controlling a grain size of austenite of the steel to 35 μm or less through static recrystallization by rough rolling the reheated steel to a reduction ratio of 10% or more; a step of hot rolling the cooled steel in the temperature range of Ar3 to Ar3+100 deg.C in such a way that the total reduction ratio is maintained to 50% or more as maintaining a reduction ratio per one pass to 30% or less; and a step of cooling the hot rolled steel to a temperature of 500 deg.C or less in a cooling rate of 2 deg.C/sec or more.
Patent KR-20020026348-A (KR)
IPC: C04B38/00
Filed: 1999-09-01
Abstract: 25-800℃에서 ≤4×10 -7 C -1 의 열팽창계수, 0.5-5.0㎛의 기공 직경을 갖는 공극률의 적어도 85%의 코디어라이트 바디: 또는 > 4.6×10 -7 ℃ -1 의 열팽창계수, 적어도 30부피%의 공극률, 공극률의 적어도 85%의 코디어라이트 바디는 0.5-5.0㎛의 기공직경을 갖는다. ≤3.0㎛의 입자 직경의 탈크, ≤2.0㎛의 입자 직경의 Al 2 O 3 -형성원, 입자 직경이 < 2.0㎛일때 원료의 < 35중량%의 카올린, 하소된 카올린, 및/또는 실리카 및 부가적인 첨정석의 원료는 매개물 및 촉진제와 함께 혼합되고, 가소 혼합물로 형성된다. 그린 바디가 형성, 건조되고 1370℃-1435℃에서 소성된다. 탈크의 입자 직경이 < 2.0㎛이고, Al 2 O 3 -형성원이 원료의 < 20중량%이며, < 0.3㎛의 입자 직경을 갖는 분산가능한 높은 표면적의 Al 2 O 3 -형성원이 원료의 < 5.0중량%이고, 카올린의 입자 직경이 < 2.0㎛일때, 1150℃-1275℃에서 가열속도는 > 200 ℃/hr이다. 탈크의 입자 직경이 ≥2.0㎛이고, Al 2 O 3 -형성원이 원료의 < 20중량%이며, < 0.3㎛의 입자 직경을 갖는 분산가능한 높은 표면적의 Al 2 O 3 -형성원이 원료의 < 5.0중량%이고, 카올린의 입자 직경이 < 2.0㎛일때, 1150℃-1275℃에서 가열속도는 > 50℃/hr 및 < 6000℃/hr이다. Al 2 O 3 -형성원의 양이 상기 원료의 20중량% 미만이고, < 0.3㎛ 미만의 입자 직경을 갖는 분산가능한 Al 2 O 3 -형성원이 상기 원료의≥5.0중량%이며, 카올린의 입자 직경 < 2.0㎛일 때, 1150℃-1275℃의 가열속도는 > 50℃/hr 이상이다. kaolin의 입자 직경이 > 2.0㎛일때, 1150℃-1275℃의 가열속도는 < 600℃/hr 및 > 30℃/hr이다.
Patent KR-20020025996-A (KR)
IPC: H01L21/8242
Filed: 2000-08-23
Abstract: 트렌치 커패시터와 선택 스위치를 구비하는 메모리 및 그 제조방법. 
     본 발명은 기판(105)에 형성되고 트렌치 커패시터(110) 및 트랜지스터(160)를 포함하는 메모리 셀을 구비한 메모리를 포함한다. 트렌치 커패시터(110)는 자기-정렬 접속부(220)에 의해 트랜지스터(160)에 접속된다. 트랜지스터(160)는 적어도 부분적으로 트렌치 커패시터(110)를 커버한다. 트렌치 커패시터(110)는 도전성 트렌치 충전물(130)로 채워지고 절연 커버층(135)는 도전성 트렌치 충전물(130)위에 위치된다. 에피택셜 층(245)이 절연 커버층(135)위에 위치된다. 트랜지스터(160)가 에피택셜 층(245)에 형성된다. 자기-정렬 접속부(220)가 콘택 트렌치(205)에 형성되고 도전성 물질(225)이 안에 삽입되는 절연 칼라(235)를 포함한다. 도전성 캡(230)이 도전성 물질 위에 형성된다.
Patent KR-20020031168-A (KR)
IPC: B27K3/36
Filed: 2000-08-24
Abstract: 본 발명은 
     유기 용매를 함유하지 않은 물(a)과 
     선택된 입체 장애 아민 N-옥실 또는 N-하이드록실(b)을 포함하며 목재의 표면을 침투하는 함침액으로 목재를 처리하여, 목재를 광 유도된 분해로부터 보호하는 방법에 관한 것이다.  추가의 대상은 목재를 안정화시키기 위한 입체 장애 아민 N-옥실 또는 N-하이드록실의 용도이다.
Patent KR-20020048423-A (KR)
IPC: C09D5/36
Filed: 2000-09-19
Abstract: Homogeneous pigment preparation, which does not form dust, contains >= 40 wt.% effect pigment(s), 0.5-59.5 wt.% styrene-modified maleate resin with an acid number over 90 mg KOH/g, 0.5-50 wt.% water and/or organic solvent (mixture), 0-10 wt.% neutralizing agent and 0-10 wt.% modifier. An independent claim is also included for dry preparations made from this preparation by tableting, briquetting, pelletizing, fluidized bed granulation, granulation, spray granulation or extrusion and optionally removing the solvent.
Patent KR-20020070430-A (KR)
IPC: C09B62/44
Filed: 2000-10-30
Abstract: 본 발명은 하기 화학식 I의 신규 아조 염료, 그의 제조방법, 염료로서 또한 잉크젯 인쇄 잉크의 성분으로서의 그의 용도, 및 이들 화합물로 염색된 기재에 관한 것이다: 
     화학식 I 
     
       
     
     상기 식에서, 각 치환기는 청구범위에서 정의된 바와 같다.
Patent KR-20020053841-A (KR)
IPC: H01M10/052
Filed: 2000-11-07
Abstract: 연속한 띠 모양의 양극판, 음극판 및 세퍼레이터를 회전 가능한 권심에 의해, 소용돌이상의 전극 그룹에 권회하는 전지용 전극 그룹 권회 방법과 장치에 있어서, 권심 근방의 소정 위치에 있어서, 에지 위치 검출 수단에 의해 띠 모양 전극판의 에지 위치를 검출하고, 기준 위치와 비교하고, 그 결과에 따라 전극판의 단부에서 전극판의 주행 방향과 직각 방향으로 동작 가능한 척으로 전극판을 잡고, 전극판의 에지 위치를 수정한 후, 가이드에 의해 전극판의 이송 방향과 평행한 방향으로만 그 이동을 구속받은 제 2 척으로 전극판을 유지하고, 또한 제 3 척으로 전극판을 유지하여 권심에 전극판의 선단부를 공급하여, 제 2 척에 의해 전극판의 에지의 변위를 방지하는 동시에 전극판에 장력을 부여하면서 전극 그룹의 권회를 실행함으로써 와인딩(windind) 변위가 적은 전극판의 권회가 가능한 권회 방법과 장치를 제공한다.  또한, 권심의 축 직각 단면 형상을 대략 6각 형상으로 하여, 전극 그룹을 편평하게 정형할 때의 편평성의 향상을 도모한다.
Patent KR-20020072278-A (KR)
Title: Triphenylalkene derivatives and their use as selective estrogen receptor modulators
IPC: A61P15/12
Filed: 2000-11-01
Abstract: The invention provides novel selective estrogen receptor modulator compounds of the general formula:wherein R1 and R2, which are the same or different area) H, halogen, OCH3, OH; orwhere X is O, NH or S; and n is an integer from 1 to 4; and R4 and R5, which are the same or different, are a 1 to 4 carbon alkyl, H, -CH2C=CH or -CH2CH2OH; or R4 and R5 form an N-containing five- or six-membered ring or heteroaromatic ring; orc) -Y-(CH2)nCH2-O-R6where Y is O, NH or S and n is an integer from 1 to 4; and R6 is H, -CH2CH2OH, or -CH2CH2Cl; ord) 2,3-dihydroxypropoxy, 2-methylsulfamylethoxy, 2-chloroethoxy, 1-ethyl-2-hydroxyethoxy, 2,2-diethyl-2-hydroxyethoxy or carboxymethoxy; andR3 is H, halogen, OH or -OCH3;stereoisomers thereof and their non-toxic pharmaceutically acceptable salts and esters and mixtures thereof, which compounds exhibit valuable pharmacological properties.
Patent KR-20020061003-A (KR)
IPC: C08K3/00
Filed: 2000-12-15
Abstract: 본 발명은 중합체 골격 10 내지 90 중량％ 및 골격에 부착된 거대단량체 측쇄 90 내지 10 중량％를 갖고, 방향족 에스테르기, 방향족 아민기 및 4차 암모늄기 또는 이들의 혼합물로 이루어진 군으로부터 선택되고 골격 또는 거대단량체에 부착된 안료 정착기 약 1 중량％ 이상을 갖고, 중량 평균 분자량이 3000 이상인 아크릴계 그라프트 공중합체를 기재로 한 안료용 중합체 분산제에 관한 것이다.  이들 물질은 광범위하게 다양한 안료들을 분산시키고, 유성 코팅에 유용하며, 안료 사용 효율의 개선, 페인트 점도의 저하 및 휘발성 유기 용매 방출의 감소를 제공할 수 있다.
Patent KR-20020062984-A (KR)
Title: Partly crystalline propylene polymerisate composition for production of biaxial-stretched polypropylene films
IPC: C08F10/06
Filed: 2000-12-11
Abstract: The present invention relates to a semicrystalline propylene polymer composition prepared by polymerizing propylene, ethylene and/or C4-C18-1-alkenes, where at least 50 mol % of the monomer units present stem from the polymerization of propylene and at least 20% by weight of the propylene polymer composition is the result of a polymerization using metallocene catalysts, with a melting point TM of from 65 to 170° C., where the semicrystalline propylene polymer composition can be broken down into from 65 to 85% by weight of a principal component A, from 10 to 35% by weight of an ancillary component B and from 0 to 25% by weight of an ancillary component C.
Patent KR-20020084137-A (KR)
Title: Plurality of vacuum generation units
IPC: F04F5/46
Filed: 2001-01-05
Abstract: A plurality of vacuum producing units capable of being employed together or independently of each other, each have a housing. The housing is internally provided with at least one ejector receiving means fitted with an ejector insert. The housings have the same transverse dimensions of at least one ejector receiving means. Individual vacuum producing units are fitted with different types of ejector inserts in the ejector receiving means for setting different fluid flow paths.