baber/WOPTO huggingface dataset:
Patent KR-0139106-B1 (KR)
Title: Off premises cable television channel interdiction method and apparatus
Inventor: WEST LAMAR E JR
IPC: H04N7/16
Filed: 1990-08-04
Granted: 1998-05-15
Abstract: An off-premises cable television interdiction apparatus provides a microprocessor controller for controlling and switching one or more variable frequency voltage controlled oscillators. The variable frequency oscillators selectively jam only unauthorized premium programming transmitted on particular channels of a broadband signal in the clear from a headend to a subscriber. The microprocessor controller controls the variable frequency oscillators to hop between jamming frequencies and jam particular channels under control from the headend. A frequency calibration routine is executed periodically upon power-up to determine gain parameters for the oscillators. A heterodyned variable frequency oscillator may be provided for the interdiction system which moves the frequency of the variable frequency oscillator out of the television band and mixes the variable frequency oscillator output with a fixed local oscillator output to provide a jamming signal that falls in the television band. Gain control using a heterodyned oscillator may instead be provided for use in the interdiction system which uses one channel of the broadband signal as the jamming signal. Automatic gain control may also instead be provided for controlling the attenuation of a variable attenuator in accordance with a gain function determined by interpolation and previously stored in memory by a calibration routine executed periodically or upon power-up. The calibration routine may run concurrently with a frequency calibration routine for controlling the frequency of the jamming signal.
Patent KR-930008310-B1 (KR)
Title: Method of wordline driver block of semiconductor memory
Inventor: MIN DONG-SON
IPC: H01L27/10
Filed: 1991-02-05
Granted: 1993-08-27
Abstract: The method is for memory array construction in  high  density memory device fabrication. When the number of strapping word lines between word line decoder and memory array increases, larger  size of layout is needed and causes bad effects according to  the  word line extention. The method comprises:  a  word  line  driver  unit divided at least 3 times and a word line from one word line driver connected the other line's neighbor line. As a practical  example, a memory unit (100) which has four memory array block consists  of a column decoder (300) and five allocated word line  driver  units and a row decoder (60). In this  example,  the  word  line  driver units are divided by 5. As like it, minimum division number should be over 3.
Patent KR-0164352-B1 (KR)
Inventor: CHO SUNG-WOO
IPC: H04B1/16
Filed: 1991-03-28
Granted: 1999-02-01
Abstract: 본 발명은 디지탈 이동 통신기기에 있어서 데이타 복원회로에 관한 것으로, 전송로를 통해 인입되는 고주파 신호로 부터 기저대역 주파수를 갖는 신호로 복조하는 복조수단, 상기 복조수단으로 부터 출력되는 정현파신호를 구형파신호로 정형하는 파형정형수단, 상기 파형정형수단으로 부터 출력되는 신호로 부터 샘플링 클럭 및 이 샘플링 클럭을 분주하여 데이타 비트 레이트와 동기된 클럭 즉, 데이타 클럭을 발생하는 클럭 발생수단, 상기 파형정형수단으로 부터 출력되는 신호를 샘플링 클럭에 의해 샘플링하는 샘플링수단, 상기 샘플링수단으로 부터 출력되는 샘플링 된 신호들을 데이타 클럭에 의해 1 또는 0 상태수를 비교한 값으로 논리신호를 출력하여 데이타를 복호화하는 복호수단을 포함하여 페이딩이나 충격잡음등과 같은 영향에 의한 에러를 줄이고 시스템의 신뢰도가 향상된다.
Patent KR-0182286-B1 (KR)
Inventor: LUICH THOMAS M
IPC: H03K19/003
Filed: 1991-04-19
Granted: 1999-04-15
Abstract: 출력 버퍼회로가 외부에서 공급된 접지전압에 연결하기 위한 두개의 분리된 접지리드를 포함하는 간단한 집적회로 패키지를 사용하는 것이 유리하다. 하나 이상의 출력 버퍼의 풀 다운 트랜지스터를 통과하는 비교적 큰 풀 다운 전류가 리드 프레임의 제1접지 리드를 통해 외부접지로 공급되며, 잔여회로는 리드 프레임의 제2접지 리드를 통해 외부접지에 접속된다. 풀 다운 전류에서의 전이는 단지 풀 다운 트랜지스터에만 영향을 줄뿐 출력버퍼의 잔여 구성요소들에는 영향을 주지 않는 접지 되튀기를 발생시킬 것이다. 이같은 방식에 있어서, 출력 풀 다운 트랜지스터로의 베이스 구동력은 접지 되튀기로 인해 감소되지않으며, 출력 전압의 고전압에서 저전압으로의 전이는 접지 되튀기의 존재에 의해 열화되지 않는다. 변형 실시예에 있어서, 출력 전이의 바람직한 특성을 제공하도록 접지 되튀기의 양이 제어된다.
Patent KR-960007418-B1 (KR)
Inventor: FUJIO KOJI
IPC: B62D7/15
Filed: 1991-06-15
Granted: 1996-05-31
Abstract: 내용 없음.
Patent KR-100199388-B1 (KR)
Inventor: KIM JIN-HONG
IPC: G11B7/26
Filed: 1991-11-16
Granted: 1999-06-15
Abstract: 본 발명은 광자기 기록매체의 기록층을 Ba 페라이트와 Co 순차적으로 적층한 Ba 페라이트/Co 초격자를 갖도록 하여서 산화에 대한 저항성이 작게하므로서 기록된 정보손실이 적게하고 자기적 특성 및 광학적 특성이 우수하도록 한 것이다.
Patent KR-100202136-B1 (KR)
Inventor: LEE SEUNG-GU
IPC: H04M1/64
Filed: 1991-11-25
Granted: 1999-06-15
Abstract: 공중선 단말기에서 사용자가 비밀번호의 자리수를 일정 자리수 이내로 선택하여 원격 제어용 비밀번호를 가변적으로 설정한다. 이를 위하여 제1등 록키 발생시 비밀번호 등록모드를 세트 시킨다. 그리고 소정시간 주기 내에서 발생되는 숫자키들을 순차적으로 저장한다. 그리고 이들 숫자키가 최대자리수를 초과하지 않는 상태에서 제2등록키 수신시, 저장중이던 숫자키 데이터들을 원격 제어를 비밀번호로 등록한다.
Patent KR-950001133-B1 (KR)
Inventor: MATSUI MASATAKA
IPC: G11C29/06
Filed: 1991-12-27
Granted: 1995-02-11
Abstract: 내용없음.
Patent KR-0169951-B1 (KR)
Title: Spring bedding product
Inventor: SCOTT TERENCE A
IPC: A47C27/06
Filed: 1990-04-10
Granted: 1999-02-18
Abstract: A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire formed into a plurality of substantially vertical coils of springs interconnected by interconnecting segments of wire located alternately in the top and bottom faces of the bands. Each interconnecting segment comprises a longitudinally extending bridging portion, a pair of transversely extending end portions, and a transversely extending support structure. The corners defined by the intersections between the bridging portions and the end portions of the interconnecting segments are radiused by radii of differing dimension so as to colinearly align the bridging portions of each band of springs. The support structure of the edgemost bands may be wrapped about the border wire to secure the border wire to the spring interior, and the end portion of the endmost interconnecting segments may be wrapped about the border wire for the same purpose.
Patent KR-950008051-B1 (KR)
Title: Preparation method of reactive dye having sulpho-alkyl-hydroxy-pridone group
Inventor: YANG JAE-MUN
IPC: C09B62/00
Filed: 1992-02-20
Granted: 1995-07-24
Abstract: The method for preparing sulfoalkyl-hydroxy pyridone gp.-contg. reactive dyes of formula (I) comprises diazo-coupling a cpd. of formula (II) with a cpd. of formula (IV) in the presence of sodium nitrite and conc. HCl to obtain a cpd. of formula (V); and sulfoalkylating it. In the formulas, R1 and R2 are each C1-4 alkyl; R3 is H, C1-4 alkyl or aryl. The sulfoalkyating agent is pref. a complex of aldehyde and sodium bisulfite; the reaction temp. is pref. 60-100 deg.C; and the pH is pref. 7.0-9.5.
Patent KR-950007048-B1 (KR)
Title: Waste treatment apparatus
Inventor: CHOE I-KYU
IPC: B09B3/00
Filed: 1992-03-09
Granted: 1995-06-30
Abstract: The apparatus for processing the wastes and getting the heat-source and recycled material, comprises a waste pylolysis furnace having inner/outer furnaces (1)(2); the inner furnace (1) pivoting on the double-layered inner/outer hollow shafts (3a)(3b); a recyling/returing section (21) connected with a gas neutralizing tank (33) and a cooling chamber (51) for neutralizing and cooling the pylolytic gas of the waste (9); an outside passage (2) having a lower combustion chamber (11), an upper funnel passage (13); a cooling water tank (15) mounted at the outer wall of the passage (13); a neutralizing tank (41) connected with the passage (13).
Patent KR-0150231-B1 (KR)
Inventor: KAWADO YASUHUMI
IPC: C23C4/00
Filed: 1992-03-28
Granted: 1998-10-15
Abstract: 본 발명은, 자기신호의 기록성을 손실하는 일 없이, 재생출력을 높일 수 있고, 또한 제작이 용이하고 코스트를 초래하지 않는 자성피막을 가진 자기기록체를 제공하는 것을 목적으로 한다. 
     본 발명은, 기재(1)의 표면에 자기신호를 기록하기 위한 자성피막을 형성한다. 이 자성피막은 Fe 3 O 4 를 30중량% 이상, 바람직하게는 75% 중량 이상 함유하는 것으로 한다. 상기 자성피막의 형성에는 플라즈마 용사법을 채용하고, 용사원료를 산화철(FeOx) 분말로 하고, 용사를 위한 작동 가스로서 비환원성가스를 사용한다.
Patent KR-0120532-B1 (KR)
Title: Ink-jet print head
Inventor: LEE KI-BANG
IPC: B41J2/17
Filed: 1992-03-31
Granted: 1997-10-20
Abstract: An ink-jet print head is provided to easily exchange a head. The ink-jet head includes: an ink receiving unit(1) for receiving an ink; a nozzle unit(2) for injecting the ink according to printing signal; a coupling means having a latch nut(3) and a latch bolt(4) for dividing and coupling the ink receiving unit(1) and the nozzle unit(2); and an ink path means having an ink outlet(5) and an ink inlet pipe(6) for passing the ink from the ink receiving unit(1) to the nozzle unit(2). Thereby, it is possible to easily exchange the improved ink receiving unit(1) without exchanging entire head.
Patent KR-950001148-B1 (KR)
Title: Hetero-junction bipolar transistor and manufacturing method thereof
Inventor: KIM JONG-RYOL
IPC: H01L29/73
Filed: 1992-04-14
Granted: 1995-02-11
Abstract: The method includes the steps of etching a semi-insulating GaAs substrate (50) to form a terrace part; sequentially forming a buffer layer (52), a base layer (54), and an emitter layer (56) on the substrate (50), doping silicon ions on the emitter layer to form a resistant layer (58), forming an oxide film (60) on the layer (58) to etch the terrace part to implant impurities thereinto to form a base region (64), partially removing the oxide film to expose the partial layer (58) to form an emitter region (66), and forming a collector electrode (70) on the lower part of the substrate, thereby using a selective doping technology to form an ohmic contact of the base electrode without an extra etching process.
Patent KR-0167791-B1 (KR)
Inventor: HARA KEIICHI
IPC: B03C3/09
Filed: 1992-05-09
Granted: 1999-01-15
Abstract: 본 발명은 정전집진기에 관한 것으로 케이싱에 위치하고 먼저와 다수의 박테리아와 같은 바람직하지 않은 물체를 함유하는 처리해야 할 가스를 가스 공급도관에서 가스 배출관까지 추출하고 배출부에 대해 앞,뒤로 서로가 거리를 두고 평행하게 설치된 가스 침투구성을 가진 먼지수집부를 포함하고 고전압 인가유닛이 방전부에 마련되고 먼전 수집실이 먼지수집부의 아래부분에 마련되고 방전부와 먼지수집부와 고전압 인가유닛과 먼지수집실이 하나의 몸체로 하나의 플레임에 제공되어 있고 정전집진기는 처리해야 할 가스의 통로에 대해 프레임의 주변면위에 제공된 설치 플랜지를 통해 일렬로 자유롭게 설치할 수 있도록 정렬되어 있다.
Patent KR-0144447-B1 (KR)
IPC: C08J7/043
Filed: 1992-05-12
Granted: 1998-07-01
Abstract: 2.1. The priming of plastic substrates without any adverse affect on the mechanical stability is described. 2.2. A coating composition comprising from 10 to 35 % by weight of binder having an OH number of from 40 to 150, prepared from (meth)acrylamides, hydroxyalkyl (meth)acrylates and copolymerisable, olefinically unsaturated compounds with subsequent modification by polyisocyanates, up to 20 % by weight of further binders, from 30 to 70 % by weight of organic solvents, from 15 to 45 % by weight of pigments and/or fillers, from 0 to 15 % by weight of additives and from 1 to 30 % by weight of epoxide- or polyisocyanate-based crosslinking agents, is used. 2.3. Painting of plastic parts for motor vehicles.
Patent KR-940007928-B1 (KR)
Title: Transformed euclid algorism logic system
Inventor: LEE DONG-HWA
IPC: G06F11/00
Filed: 1992-06-02
Granted: 1994-08-29
Abstract: The modified Euclid algorithm operation system comprises a first shifter for sequentially shifting an input syndrome byte or a corresponding degree of a polynomial until an error magnitude polynomial is obtained, a second shifter for sequentially shifting an output of the first shifter or its own output data, a first operation part for supplying a result value obtained through multiplication and addition of the output of first shifter and coefficients of the highest degree term to one input of a next stage of the first shifter, a third shifter for sequentially shifting an input value or a presetting value, a fourth shifter for sequentially shifting the output of the third shifter, and a second operation part for supplying a result value obtained through multiplication and addition of the outputs of the third and fourth shifters and coefficients of the highest degree term to one input of the third shifter, thereby reducing manufacturing cost.
Patent KR-950010888-B1 (KR)
Title: Image control circuit & method in pop tv system
Inventor: BAEK UN-KIL
IPC: H04N5/45
Filed: 1992-08-03
Granted: 1995-09-25
Abstract: The device provides POP(Picture On Picture) image processing function for the 16:9 wide television. The method comprises the steps of: determining the operation mode either motion picture or strobe function by the key input; adjusting the three sub-screen signal with the same signal when the strobe function is selected in the previous step; providing the different signal for the main screen and three sub-screen, and processing the three sub-screen signal as motion picture function when the motion picture function is selected.
Patent KR-100236860-B1 (KR)
Title: Alignment treating agent for lcd cell
Inventor: MISHINA MAKOTO
IPC: C09K19/56
Filed: 1992-08-11
Granted: 2000-01-15
Abstract: The present invention relates to an alignment treating agent for a liquid crystal cell, which comprises an organic solvent-soluble polyimide resin comprising a tetracarboxylic acid and a diamine, at least 10 mol% of the diamine having a bivalent organic group selected from the group consisting of: <CHEM>   The aligned film for a liquid crystal using the solvent-soluble polyimide resin of the present invention does not require a heat treatment at a high temperature at the time of forming a resin film and enables to use a substrate poor in heat-resistance, and alignment properties such as a tilt angle and a voltage maintenance of the aligned film are not deteriorated even after durability test at a high temperature.
Patent KR-960013138-B1 (KR)
Inventor: IZMI AKIRA
IPC: H01L21/306
Filed: 1992-08-11
Granted: 1996-09-30
Abstract: 없음
Patent KR-970001309-B1 (KR)
Inventor: KAZUHIRO TSUJI
IPC: H03F1/48
Filed: 1992-12-24
Granted: 1997-02-05
Abstract: 내용 없음.
Patent KR-100217787-B1 (KR)
Title: System and process for forming thin flat hot rolled steel strip
Inventor: ROSTIK LIBOR F
IPC: B21B1/42
Filed: 1991-08-16
Granted: 1999-09-01
Abstract: A continuous process and system for making flat rolled steel or ferrous metal strip having a minimum thickness sufficient to allow substantially direct product manufacture therefrom, wherein a Platzer planetary mill continuously receives an as-continuously cast endless slab of steel or ferrous metal and effects a first reduction in thickness from the as-continuously cast thickness of the slab, a plurality of millstands sequentially receive the continuous strip from the Platzer planetary mill to effect a second reduction in thickness of at least about 50% of the first reduced thickness to provide a continuous strip having an average thickness of less than about 1.8 mm, and electric induction reheaters are placed between each adjacent pair of millstands to maintain the continuous strip at a working temperature sufficient to effect the second reduction in thickness.
Patent KR-100301868-B1 (KR)
Title: 과전류보호장치
IPC: H01H71/16
Filed: 1993-03-29
Granted: 2001-10-22
Abstract: 본 발명의 과전류 보호 장치(10)는 한 쌍의 단자(14,16)에 각각 전기적으로 연결된 고정 접점(26) 및 가동 접점(32)과, 열저항성 소자에 응답하여 상기 양단자 사이의 접점들과 직렬 연결되어 접점들이 결합 위치에서 분리 위치로 이동하게 스냅 동작하는 바이메탈 부재(34)를 구비하며, 또 상기 열 저항성소자에 병렬 연결된 전류 바이패스 수단(24)과 전기적 연결을 가능하게 하는 제2 바이메탈 부재를 포함한다. 또 열저항성 소자보다 훨씬 높은 저항을 갖는 가열 블럭(18)이 양단자(14,16) 사이에 구비될 수도 있다.
Patent KR-950014546-B1 (KR)
Title: A holder for a feeding bottle
Inventor: JUNG BYUNG-SU
IPC: A61J9/06
Filed: 1993-04-24
Granted: 1995-12-05
Abstract: a lower end portion of a supporting member formed on a supporting plate having a supporting member connector and coupled by a first hinge shaft screw, one side of which is coupled by means of a first nut and the other side of which is coupled by means of a first butterfly nut; and an upper end portion of the supporting member associated with a fixed member which adjusts an interval by means of a clip, by a second hinge shaft screw, one side of which is coupled by means of a second nut and the other side of which is coupled by means of a second butterfly nut, whereby the fixed member and the supporting member are rotated, while fixed by the first and second butterfly nuts.
Patent KR-960002364-B1 (KR)
Title: The method utilizing help-service functions for an electronics switching system
Inventor: PARK SOO-YONG
IPC: H04M3/22
Filed: 1993-05-26
Granted: 1996-02-16
Abstract: inputting and analyzing the instruction required by user; determining whether the instruction is for request of help function or output of whole instruction; transferring the group information to I/O man/machine communication; providing message type to a user terminal after copying the instructions to output table; returning to former step if the message which is transmitted to the terminal is not terminated or stopping the system if the message is terminated.
Patent KR-960008208-B1 (KR)
Title: Method for pressing data composing word
Inventor: KIM DO-NYUN
IPC: G06F15/76
Filed: 1993-05-31
Granted: 1996-06-20
Abstract: calculating an average of each data range of initial, medium, final sound element comprising single korean letter(S101-S105); allocating an initial sound range among total data range of a single letter using the above calculated data range, and storing an initial sound font after removing the allocated data(S106-S108); storing a medium sound font after removing the allocated data range of a medium sound with the calculated data range(S109-S113); storing a final sound font after removing the allocated data range of the final sound(S114-S113); thereby reducing the size of the Hangul font data.
Patent KR-960013544-B1 (KR)
Title: Compensation apparatus of the motor eccentricity
Inventor: KIM HYUNG-SOO
IPC: H02K1/27
Filed: 1993-07-31
Granted: 1996-10-07
Abstract: This invention relates to the apparatus wherein an assembled body is fixed to keep a given interval between the casing(1) and the rotating axis(3), and the magnets(6a, 6b) are installed on the position which the assembled body and rotating axis are corresponding each other so as to compensate the off-center of the interval(C) by the repulsion of same poles.
Patent KR-960006901-B1 (KR)
Title: Air supplying nozzle structure for a washing machine
Inventor: LIM MOO-SAENG
IPC: D06F37/20
Filed: 1993-07-30
Granted: 1996-05-25
Abstract: The washing machine includes a rotating blades(5) driven by a driver(4) and inducing rotational water flow, and an air bubble generator. The air bubble is elevated through a connecting hole(7) and a short tube(21) of the water basin(2). The washing machine for increasing the washing efficiency using air bubble has a nozzle unit(8) connected with a tube(21) that located on the water tank floor and receiving air bubbles, making them into smaller particles, and dispersing them into the air hole located on the washing tank supporter(31).
Patent KR-960009352-B1 (KR)
Title: Gas pressure detection system
Inventor: LEE JANG-HEE
IPC: G01M3/00
Filed: 1993-09-07
Granted: 1996-07-18
Abstract: The apparatus detects the kind and the pressure of the high pressure gas used in the process of manufacturing semi-conductors in order to easily identify the gas. The apparatus comprises an analog gauge(10), attached to a regulator(3) and displaying the pressure of a gas tank(1) and converting the pressure into an electric voltage; a pressure display circuit(30) displaying the kind of the used gas according to a control signal of a gas controller(20), and amplifying/outputting the voltage from the analog gauge(10); a microprocessor(40) digitizing the gas pressure and monitoring the digitized value in a gas pressure displayer(50).
Patent KR-960005200-B1 (KR)
Title: Variable length decoder
Inventor: LIM CHAE-YUL
IPC: H03M7/42
Filed: 1993-09-23
Granted: 1996-04-22
Abstract: The variable length decoder relates to decode data which is coded entropy in realtime by a variable length coder in a digital video system or multimedia system. The variable length decoder comprises: a data shifer 100 for shifting as predecoded code length(RLN1) in order to arrange at a first bit of input code by storing an input data(Vi); a decoder section 300 for outputting variable length decoded code(VCD) and code matching signal(MS1) indicated whether the code matches or not, and code length value(LN1) added the pre-decoded code length(RLN1) and just-decoded code length by matching from the pre-decoded code length(RLN1) as to the input which is a output of the data shifter; and a shifter control section 200 for controlling to process continuously operation of the decoder section at a state stopped shift operation of the data shifter after matching just-input code in order to shift as the pre-decoded code length(RLN1) from the data shifter in case of not matching just-input code by using the outputs(LN1, MS1) of the decoder section.
Patent KR-0122536-B1 (KR)
Inventor: AINSBURY ALAN WALTER
IPC: B42D25/00
Filed: 1993-10-16
Granted: 1997-11-20
Abstract: 연장 모듈은 자체를 둘러싸는 외부 박판 금속 재킷을 갖는 기부 회로카드에의 텐덤 접속을 위해 마련된다. 이 모듈은 모듈 하우징과, 이 하우징으로부터 연장되는 한쌍의 평행 이격된 지지 핑거들을 포함한다. 지지 핑거들의 외측면들은 카드 재킷의 대향 측면 에지들에 인접한 재킷의 내측면들을 결합하도록 기부 회로카드의 후방 단부에 있는 대응 이격 개구들 안에 활주식으로 삽입할 수 있는 형상을 취한다. 전기 커넥터는 지지 핑거들 사이에 위치하며, 모듈이 기부 회로카드에 접속될 때 기부 회로카드의 후방 단부에 위치한 대응 전기 커넥터에 정합 접속되도록 구성된다. 연장 모듈이 기부 회로카드 안으로의 지지 핑거들의 완전한 삽입에 의해 기부 회로카드에 접속되면 핑거들을 둘러싸는 재킷의 결합은 연장 모듈을 기부 카드에 견고하게 결합하여 일체형 연장식 회로카드를 형성하게 해준다.
Patent KR-960002125-B1 (KR)
Title: Apparatus for pre/after-treating a horizontal multi-function of
Inventor: CHON JAE-HO
IPC: C25D17/00
Filed: 1993-10-26
Granted: 1996-02-10
Abstract: The horizontal multi-functional apparatus reduces the manufacturing cost by operating the pretreatment and post treatment efficiently. The apparatus comprises: an unwinder(1) and a rewinder(13); a degreasing treatment part consisting of alkaline solution bath(2), an electro-cleaning bath(3), a brushing bath(4) and a first rinsing bath(5); a post-treatment part consisting of a phosphate salt bath(6), a chromate salt bath(7) and a second rinsing bath(8); a oven(9); a resin coating device(10); a heating furnace; and a cooling device(12).
Patent KR-970010576-B1 (KR)
Inventor: WILLIAM BLASNIK
IPC: A61B17/88
Filed: 1993-12-10
Granted: 1997-06-28
Abstract: 내용없음
Patent KR-960004424-B1 (KR)
Title: Method of aluminium pipe
Inventor: JOO WOO-SANG
IPC: B22D21/00
Filed: 1993-12-17
Granted: 1996-04-03
Abstract: The Al tube is manufactured by casting a flange section and a taper tube section separately, combining them with screws and welding them. The flange section is produced by forming a coating layer(2) by spraying a coating agent with alcohol on the inner surfaces of the upper(11a) and lower(11b) molds; and pouring molten Al into a iron mould in which a corn-type core(3) with several inflow holes is mounted.
Patent KR-0180051-B1 (KR)
Inventor: CHOO CHOL-HO
IPC: B23B27/00
Filed: 1993-12-30
Granted: 1999-04-01
Abstract: 이 발명은 칩 취출 장치에 관한 것으로서, 칩을 수작업에 의해 일일이 분리 선별하기 때문에 작업이 번거롭고 단조로워 작업능률 및 생산성의 향상을 꾀할 수 없고 작업자들이 선별분리작업을 기피하는 종래의 문제점을 해결하고자 한다. 
     이를 해결하기 위하여 이 발명은, 회전 가능한 인덱스 테이블의 칩홀 상에 칩을 측정하기 위한 측정기와 칩을 취출하기 위한 투명 파이프와 에어노즐을 설치함으로써 칩을 측정한 후에 각각 소정의 측정치별로 분리할 때 용이하게 분리 선별할 수 있고 칩의 이송을 직접 확인할 수 있도록 한 것이다.
Patent RO-119777-B1 (RO)
Title: Process and installation for the separation of c5 and c6 n-alkanes from gasoline fractions
Inventor: IONITA CONSTANTIN
IPC: C07C7/13
Filed: 2002-05-30
Abstract: The invention relates to a process for separating C5 and C6 n-alkanes from gasoline fractions, by selective adsorption on molecular sieves, followed by the desorption thereof by changing the pressure in the adsorption stage and entraining the C5 and C6 n-alkanes by using a desorption agent, the adsorption and desorption stages lasting the same time. The invention also relates to the installation for carrying out the process, comprising two circuits, one circuit for the adsorption of C5 and C6 n-alkanes from gasoline fractions and a second circuit for the desorption of C5 and C6 n-alkanes kept on the molecular sieve.