baber/WOPTO huggingface dataset:
Patent KR-20030042904-A (KR)
Title: Two-axes drive actuator
Inventor: YOON YONG SEOP
IPC: G02B26/08
Filed: 2001-11-26
Abstract: PURPOSE: A biaxial driving actuator is provided to lower a driving voltage and reduce the power consumption by performing a biaxial driving operation without using an additional actuator. CONSTITUTION: A couple of trenches(3,3') are formed on a substrate(1). A support plate(13) is rotated by using the first rotary axis(10) as a center axis at an upper portion of the substrate. A micro mirror(20) is rotated by using the second rotary axis(17) as the center axis on a different layer from the support plate. One ore more electrodes are used for generating the electrostatic force by the interaction with the support plate or the micro mirror. The electrodes are formed with a bottom electrode and a side electrode which are formed at a bottom portion and a side portion of the trenches.
Patent KR-20030048852-A (KR)
Title: A buckle of safety belt for protect tibia against impact
Inventor: AHN CHANG NAM
IPC: B60R22/18
Filed: 2001-12-13
Abstract: PURPOSE: A buckle of a safety belt to protect the shin is provided to prevent an injury to the shin of a driver by preventing the safety belt from slipping down in a vehicle crash. CONSTITUTION: A hollow buckle body(10) has a connection hole(13) connected to a safety belt, and a fixing hole(11) fixed on a buckle pocket. A first block member(20) moves the fixing hole in the buckle body. A first rod member(30) is connected to one side of the first block member. A second rod member(40) is rotatably connected to the first rod member, and rotates along a centering member(41) in the buckle body. A second block member(50) is connected to the second rod member, and compresses the safety belt by the rotation of the second rod member.
Patent KR-20030049541-A (KR)
Title: Plasma vapor equipment
Inventor: KO JAE SAENG
IPC: G02F1/13
Filed: 2001-12-15
Abstract: PURPOSE: A plasma deposition apparatus is provided to prevent a film formed on the edge of a target or backing plate from dropping on a substrate. CONSTITUTION: A plasma deposition apparatus includes a dark space shield(31) serving as an anode, a target(32) that is the source of a film to be deposited, and a backing plate(37) for supporting and fixing the target. The edges of the target and backing plate have uneven surfaces. The apparatus further includes a susceptor(34) on which an LCD substrate(33) is placed facing the target, a shield frame(35) located on both sides of the susceptor in order to prevent a metal from being deposited on the edge of the LCD substrate, and a shield frame support(36) for supporting the shield frame.
Patent KR-20020059232-A (KR)
Title: Display device
Inventor: MIYATAKE MASAKI
IPC: G09G3/36
Filed: 2001-12-18
Abstract: PURPOSE: A display device is provided to excellently improve a display quality and to increase a timing margin. CONSTITUTION: A shift register(1) has a plurality of register circuits(2) connected in cascade. Each of the register circuits(2) outputs the shift pulse shifting the start pulse in accordance with the clock signal. Each of the register circuits(2) in the shift register(1) has latch circuits(first and second latch circuits)(3,4) connected in cascade, an inverter(5) connected to an output terminal of the latch circuit(4) of the subsequent stage, and clocked inverters(second and first clocked inverters)(6,7) connected to an output terminal of the inverter(5). All the register circuits(2) in the shift register(1) have a common circuit configuration. Each of the latch circuits(3) has a clocked inverter (third clocked inverter)(8) for latching an output of the clocked inverter(7) in the register circuit(2) of the preceding stage.
Patent KR-20020069100-A (KR)
Inventor: FUJIMOTO HIDEKI
IPC: G07F9/02
Filed: 2001-12-21
Abstract: PURPOSE: To provide a commodity storing and deliver device for an automatic vending machine capable of fully storing commodities and quickly and easily detecting a sold out of a commodity in loading of commodities. CONSTITUTION: The commodity storing and delivering device is provided with a stopper 4 supporting a commodity S1 to be sold and delivering the commodity S1 by releasing the support of the commodity S1 in a sale, an ejector 6 capable of moving between an allowing position allowing a downward movement of a commodity S2 to be sold next and a blocking position blocking the movement, a driver 7 driving the ejector 6, a commodity detecting means detecting a presence of a commodity S in a predetermined position above the ejector 6, and a control means controlling the driver 7 so as to hold the ejector 6 in the blocking position when no commodity S is detected by the commodity detecting means and drive the ejector 6 from the blocking position to the allowing position when a detection result of the commodity detecting means changes from a state without the commodity S to a state with the commodity S.
Patent KR-20030052556-A (KR)
Title: An apparatus for controlling cooling temperature of hot rolled wire rod
Inventor: LIM JEONG HYEOK
IPC: B21B45/02
Filed: 2001-12-21
Abstract: PURPOSE: A cooling temperature controlling apparatus for a hot rolled wire rod is provided to improve productivity of the hot rolled wire rod by carrying out the heat treatment process of a large-diameter wire rod and a small-diameter wire rod in one line. CONSTITUTION: A cooling temperature controlling apparatus includes a first cooling table(100) installed at a rear portion of a coiler. A second cooling table(200) is aligned in parallel to the first cooling table(100). When producing a small-diameter wire rod, a transverse conveyer and a coil lifting section are mounted on the first cooling table(100). The transverse conveyer extends through a line switching section(15), a middle integrator, and a second cooling table(200) in such a manner that a moving direction of the small-diameter wire rod is changed into an insulation tunnel.
Patent KR-20030054500-A (KR)
Title: A Door Lock
Inventor: YUN SAM KI
IPC: E05B47/00
Filed: 2001-12-26
Abstract: PURPOSE: An apparatus for opening and closing a door is provided to prevent the accident and the loss of lives by facilitating the opening and closing of a door without using a key in case of emergency. CONSTITUTION: A door opening/closing apparatus(100) is provided with a lock key(10) therein, a hole(2) for entering and exiting the lock key(10), a doorknob(11) for closing a door(200) by manually moving the lock key(10), and a manual release button(20) for opening the door(200) in case of emergency. The hole(2) is provided on an upper of side of the door opening/closing apparatus(100). In the device, the door opening/closing apparatus(100) is installed on the door(200), a cover is provided thereon, for protecting foreign material from outside. A transparent plate is provided on the cover and to be broken by a user in case of emergency.
Patent KR-20030054557-A (KR)
Title: An apparatus for grinding the underside of strip front tip
Inventor: KIM EON SIK
IPC: B24B9/00
Filed: 2001-12-26
Abstract: PURPOSE: A device for automatically grinding the end of a strip is provided to prevent the strip from being bent by automatically grinding a burr formed at the end of the strip. CONSTITUTION: A grinder(5) is mounted on the front end of a coil winder(100), and moves up and down through a stay plate(7). A motor rotates the grinder. The grinder moves in the progressive direction of a strip(S), and is contacted with the lower surface of the strip and grinds the front end of the strip. A support plate is located at the upper part of the strip, and supports the upper part of the strip.
Patent KR-20010053425-A (KR)
Title: 그리냐르 화합물의 입체선택적 제조 방법 및 그의 용도
IPC: C08F8/42
Filed: 1999-07-02
Abstract: 본 발명은 화학식 Ⅰ의 그리냐르 화합물, 화학식 Ⅰa의 중합체-결합된 화합물의 입체선택적 제조 방법, 물질 표준 라이브러리의 제조에 있어서 그의 용도 및 입체선택적 화학 합성에 있어서 화학식 Ⅰ 및 Ⅰa의 화합물의 용도에 관한 것이다.
Patent KR-20010071019-A (KR)
Title: 섬유원료로 된 웹 그라인드용 장치 및 방법
IPC: B24B21/06
Filed: 1999-07-22
Abstract: 식물성 섬유 원료로 된 종이, 판지 또는 유사한 연속된 웹의 그라인드용 장치 및 방법에 있어서, 상기 장치는 웹 양측에 정렬된 롤 또는 벨트와 같은 복수의 그라인드 수단을 포함하고, 상기 수단은 웹의 운동방향으로부터 이탈되어 있거나 웹이 스퀴즈 롤에 의하여 상기 수단으로부터 이탈되어 있고, 롤은 그라인드된 표면의 전하량과 유사한 전하량으로 마찰전기적으로 대전되어 있는 것을 특징으로 한다.  웹의 장력은 그라인드 수단을 움직이거나 웹을 운동방향으로부터 움직여서 통제되고 그라인드 과정에서 발생하는 먼지는 진공시스템으로 제거된다.
Patent KR-20010088784-A (KR)
Title: Method for cyclizing hydrolysis of an aminonitrile compound into lactam
IPC: C07B61/00
Filed: 1999-07-15
Abstract: The invention relates to a process for the cyclizing hydrolysis of an aminonitrile compound into a lactam in the presence of a catalyst.The invention relates more particularly to a process for the cyclizing hydrolysis of an aminonitrile compound in the presence of a macroporous particulate catalyst obtained by deposition/impregnation of an oxygenated compound onto a macroporous support such as alumina. The invention applies in particular to the preparation of epsi-caprolactam by cyclizing hydrolysis of aminocapronitrile.
Patent KR-20010073041-A (KR)
Title: 수신 및 송신 전용 안테나를 구비하는 이중 밴드 무선전화기
IPC: H04B1/40
Filed: 2000-06-26
Abstract: 본 발명은 분리된 이중 밴드(dual band), 이중 급전 점(feed point) 송신 및 수신 안테나를 구비하는 이중 밴드 무선 전화에 관한 것이다. 이중 밴드, 이중 급전 점 수신 안테나의 두 급전 점은 두 송수신기의 각 수신 분기(branch) 회로에 연결된다. 이중 밴드, 이중 급전 점 송신 안테나의 두 급전 점은 두 송수신기의 각 송신 분기 회로에 연결된다. 추가적으로, 이미지 제거 밴드 패스 필터(image reject band pass filter)가 이중 밴드, 이중 급전 점 수신 안테나와 각 수신 분기 회로 사이에 연결된다. 이중 밴드, 이중 급전 점 송신 및 수신 안테나가 매우 가까이 떨어져 있을 때, 송신 분기 회로는 송신 전력 증폭기와 이중 밴드 송신 안테나의 두 급전 점 사이에 연결된 송신 필터를 포함한다.
Patent KR-20010099652-A (KR)
IPC: G09G3/36
Filed: 2000-07-13
Abstract: 준비 위상 내의 펄스의 진폭을 적응시킴(adapt)으로써, 쌍안정(bistable) 콜레스테릭(cholesteric) 디스플레이에서 유니폴라 구동이 얻어질 수 있으며, 한편, 구동 전압은 C-MOS 테크놀로지의 리미트(limits) 내에 머무른다.
Patent KR-20010079974-A (KR)
IPC: C08J11/16
Filed: 1999-09-30
Abstract: 폴리에스테르 낱개 입자들을, 알카리 조성물이 이 폴리에스테르 입자를 코팅하도록 알카리 조성물과 혼합하는 것으로 이루어지는 폴리에스테르의 처리 방법을 제공한다. 그 후에, 상기 입자를 적어도 실질적으로 물이 없는 조건 하에서 가열한다. 본 발명의 방법은 폴리에스테르 물질의 클리닝, 오염 제거 및 고유점도 증가까지에도 유효하게 이용될 수 있다. 또한, 오염 물질 및/또는 불순물을 함유하는 폴리에스테르 물질의 회수에 이용하는 경우, 본 발명의 방법은 고유점도 및 색상면에서 우수한 폴리에스테르 제품 제공한다.
Patent KR-20010080045-A (KR)
IPC: H01P1/205
Filed: 2000-08-03
Abstract: 전송홀의 배열을 가진 세라믹블록필터가 전송홀 각각, 트랩홀로부터 간격을 두고 배치된다는 점에서 상기 필터는 0.16~0.2 : 1의 전송홀 직성대 필터 높이의 비율을 가지고 0.45~0.5 : 1의 전송홀 직경대 전송홀간의 거리의 비율을 가진다. 상기 트랩홀은 상기 적어도 두 개의 전송홀간의 거리의 1.5~2배의 거리로 간격을 두고 배치된다. 이러한 필터의 제로포인트는 전송홀 직경대 필터 높이의 비율과 전송홀 직경대 전송홀간의 거리의 비율을 조절하므로서 크기, 삽입손실(insertion loss), 감쇄와 같은 변화를 가져오는 임계 매개변수없이 제어된다.
Patent KR-20010086107-A (KR)
Title: 화학 증착용 버너 메니폴드 장치
IPC: F23D14/52
Filed: 1999-12-01
Abstract: 화학 증착공정의 연소부에 반응물을 전달하기 위한 버너 메니폴드 장치(10)는 유체 입구(32a,32b), 유체 출구(49) 및 그들 사이로 연장된 다수개의 유체 통로(50)를 포함한다. 상기 유체 통로(50)는 유체 입구로부터 유체 출구까지 서로를 향해 수렴한다. 일실시예는 메니폴드 베이스(12), 압력 플레이트(14), 및 미세기계가공된 버너(58)를 장착하기 위한 메니폴드 버너 마운트(16)를 포함한다. 상기 메니폴드 베이스 내부의 유체 통로(50)는 메니폴드 버너 마운트에 유체를 대칭적으로 분배하는 구조를 갖는다. 상기 유체는 메니폴드 버너 마운트의 유체 통로를 통과하게 된다. 상기 유체 통로는 수렴하지만, 서로로부터 유체적으로 격리된 상태를 유지하며, 상기 유체 통로는 선형 유체 스트림을 생성하도록 하는 선형 어레이를 형성한다. 선택적으로, 상기 버너 메니폴드 장치는 적층구조로 된 다수개의 메니폴드 엘리먼트를 포함할 수 있다. 이러한 선택적 실시예에서, 상기 메니폴드 엘리먼트는 적층구조의 상부에 선형 유체 통로 어레이를 형성하는 구조이며, 상부에 근접할수록 각각의 층에서 유체 통로의 수는 증가하게 된다. 또 다른 실시예로서, 상기 버너 메니폴드는 내부에 유체 통로를 가진 메니폴드를 형성하기 위해 다이를 통하여 미립자 합성물을 압출함으로써 제조될 수 있다. 일반적으로, 이와 같이 압출된 메니폴드는 버너가 장착될 수 있는 테이퍼부를 갖는다.
Patent KR-20010089823-A (KR)
IPC: F04D27/02
Filed: 2000-01-13
Abstract: 본 발명은 냉각 부하 및 헤드의 기능과 함께 냉동시스템(100)을 자동으로 제어하기 위한 적응 제어 방법 및 장치에 관한 것이다. 
     압축기에서의 서지를 회피하기 위하여 제어 패널(140)이 상기 냉각 부하와 헤드에 응답하면서, 고온 가스 바이패스 밸브(134)의 작동을 제어한다. 
     상기 제어 장치 및 방법은 자가-보정이 자동으로 이루어지도록 한다.
Patent KR-20010109312-A (KR)
IPC: A61K8/60
Filed: 2000-03-03
Abstract: The invention relates to the use of surfactant mixtures, comprising (a) anionic and/or nonionic surfactants and (b) water soluble beta-(1,3) glucans, which are substantially free of beta-(1,6) links. Said mixtures are used to produce oral hygiene and dental hygiene products in particulars, toothpastes. The preparations are characterized in that the mucous membranes in the mouth have a particularly high degree of tolerability with regard thereto, by exhibiting exceptional foaming properties and a stable distribution of the abrasive substances.
Patent KR-20020019462-A (KR)
Title: 반도체 디바이스 제조 방법
IPC: H01L21/265
Filed: 2001-04-03
Abstract: 반도체 디바이스 제조 방법에 있어서, P + 영역이 실리콘 바디 내에 형성되며, 상기 P + 영역에 상기 실리콘 바디의 실리사이드화에 의해 티타늄 실리사이드의 낮은 옴 상(a low ohmic phase)이 제공된다.   티타늄 실리사이드의 낮은 옴 상의 형성을 증진시키기 위해, P + 영역은 B 이온 및 BF 2 이온을 1:4 내지 4:1의 B 대 BF 2 의 비율로 실리콘 바디 내로 주입함으로써 형성된다.
Patent KR-20020019096-A (KR)
IPC: C08F8/34
Filed: 2000-06-21
Abstract: Process for the preparation of a condensation compound by reaction of at least one functional group of a first low-molecular weight compound having at least two functional groups, with at least one functional group of at least one further, second low-molecular weight compound having at least two functional groups, and which can be identical to the first or different from the first low-molecular weight compound, with obtainment of a condensation compound, characterized in that at least one of the functional groups involved in this reaction has been activated before the reaction by reaction with a compound of the following structure (I)where R' is a halogen atom or a radical (I')and where R1, R2, R1' and R2' are identical or different and are hydrogen, straight-chain or branched-chain alkyl, aryl, cycloalkyl, heterocyclic or aralkyl radicals having up to 30 C atoms, or either R1 and R2 or R1' and R2' or both R1 and R2 and R1' and R2' are linked to give a carbocycle or a heterocycle.
Patent KR-20020040681-A (KR)
IPC: B01J27/13
Filed: 2000-06-29
Abstract: 공급원료의 크래킹 감소와 함께 증가된 활성을 가지고 증가된 RON 값을 제공하는 개질 시스템을 초래하는, 촉매 상에 염소 약 0.05 내지 약 0.3 중량%를 제공하기 위한 양으로 복합 반응기 시스템의 반응기에 비금속 염소-함유 화합물이 도입되면서 동시에 촉매가 수소로 환원된 다음 촉매 ft 3 당 수소 약 100 내지 약 50,000 ft 3 으로 시스템이 퍼징됨에 의한 복합 반응기 시스템에 함유되어 있는 백금 개질 촉매 시스템의 촉매 활성화.
Patent KR-20020060590-A (KR)
Inventor: BANFIELD MARK JONATHAN
IPC: H01H15/10
Filed: 2002-01-08
Abstract: PURPOSE: A slider actuated switch is provided to allow for ease of assembly of the slider with the track and prevent sliders in each switch from being removed. CONSTITUTION: A slider actuated switch comprises a microswitch switching mechanism(1) including a biased plunger(11) mounted in a main body, a frame(2) including a rear face, side faces(4,5) and an interrupted top face(6) having an aperture, a slider(3) mounted on the main body in such a manner that the slider is capable of sliding in forward and backward directions along the main body and cooperates with the body, and a cam associated with the slider and engaged with the biased plunger when the slider moves in forward and backward directions to operate the plunger and actuate the microswitch switching mechanism.
Patent KR-20030061946-A (KR)
Title: : Apparatus for controlling brightness of LCD using heating in system, and its method
Inventor: WOO JONG HYEON
IPC: G06F1/20
Filed: 2002-01-14
Abstract: PURPOSE: An apparatus for controlling LCD brightness using generation of heat within a system and a method thereof are provided to maintain the brightness of an LCD with a little power supply by transmitting heat generated in the system to surroundings of an LCD lamp through a duct, thereby reducing consumption power of a battery. CONSTITUTION: A heat generating element(110) generates heat according to an operation of a system. A fan(120) transmits the heat emitted from the heat generating element to a heat collecting part(140). A peripheral temperature of an LCD lamp(150) installed inside the heat collecting part is increased by the heat supplied to the heat collecting part. A microprocessor supplies brightness adjusting voltage or current through an inverter proportional to the peripheral temperature of the LCD lamp increased by the transferred heat.
Patent KR-20020023359-A (KR)
Title: Equipment for deforming end plates of pressure resistance tank
Inventor: PARK KYUNG SEO
IPC: B21D51/24
Filed: 2002-01-18
Abstract: PURPOSE: An apparatus for fabricating an end plate of a pressurized vessel is provided to reduce working time and to save the manufacturing cost by stopping an extrusion pump when the process is finished. CONSTITUTION: An inner mold(5) is installed at an upper portion of a water tank(1). The inner mold(5) is formed at a periphery thereof with a bending portion(5-1). An outer mold(6) having a pressing section(6-1) at a periphery thereof coupled to a lower portion of a hydraulic press by interposing a latching section(6-2) and a wire(7-1). A detector(1) is installed at a center of a bottom of the outer mold(6). A discharging pipe(3-2) having a check valve therein inserted into a chamber of the water tank(1). The check valve(3-3) is connected to the extrusion pump. An intake pipe(3-1) of the extrusion pump is connected to the auxiliary water tank(2) through a drain valve(3-4).
Patent KR-20020063517-A (KR)
Inventor: DAHLHEIMER STEFAN
IPC: B29B9/06
Filed: 2002-01-28
Abstract: PURPOSE: Provided is a knife arrangement with the striper such that during displacement of the striper carrying at the same time above itself plastic ropes which are fed to the counter-knife, to keep its support surface serving for this in such a relative position to the counter-knife that the function of the support surface is practically preserved whereby the supply of the ropes to the counter-knife is not influenced by an adjustment of the striper. CONSTITUTION: Knife arrangement for a granulator for granulating plastic ropes with two draw-in rollers and a cutting rotor cooperating with a counter-knife(2), and a striper(3) facing one of the draw-in rollers, whereby counter-knife(2) and striper(3) are mounted on a common support, whereby the striper(3) is arranged adjustably for adjustment of the distance between the striper(3) and the draw-in roller, and whereby the striper(3) has a support surface(6) for feeding the plastic ropes to the counter-knife(2) and the cutting rotor, and is provided on one side with a striper edge projecting towards the draw-in roller, and on its other side with an end edge projecting towards the counter-knife(2), characterized in that the support(1) has a support surface(4) facing the striper(3), on which the striper(3) rests with a counter surface(5) adapted to the support surface(4), whereby support surface(6) and counter surface(5) approach each other towards the counter-knife(2) in a wedge-shaped manner, such that the end edge(7) is formed cutting edge-like, and the striper(3) together with the support(1) reaches the counter-knife(2) essentially continuously.
Patent KR-20030068735-A (KR)
Title: Optical fiber cable with optical fiber bundle
Inventor: JUNG YEONG SU
IPC: G02B6/44
Filed: 2002-02-16
Abstract: PURPOSE: An optical fiber cable including an optical fiber bundle is provided to minimize an outside diameter by reducing the usage of tensile members and using optical fiber of a spiral structure and the optical fiber bundle having a circular section. CONSTITUTION: An optical fiber cable including an optical fiber bundle includes an optical fiber having a plurality of cores and an external coating layer(290) for protecting the optical fiber. Each optical fiber includes a bundle of optical fibers(230) and a coating layer(240). The bundle of optical fibers are formed by twisting spirally the optical fibers to a longitudinal direction. The coating layer is used for covering the bundle of optical fibers. An optical fiber bundle(250) is included in the external coating layer. The optical fiber bundle has a circular section. A re-coating layer is coated around the coating layer.
Patent KR-20020025929-A (KR)
Inventor: SON YOUNG SUK
IPC: A23L7/10
Filed: 2002-02-25
Abstract: PURPOSE: Provided is a method for manufacturing processed grain product by using medicinal herbs, seaweed, animals, plants, healthy foods and mushrooms. Therefore, the processed grain product comprises pharmacological components, organic acids, various vitamins and other nutriments to be good for the old and the weak. CONSTITUTION: The manufacturing method of processed grain food product containing pharmacological components is characterized by processing saccharification and fermentation of lactic acid, acetic acid and the like, with adding medicinal herbs, plants(roots, leaves, stems fruits), animals, seaweed, minerals, healthy foods, drugs and the like which contain pharmacological components and are described as in the description.
Patent KR-20030071960-A (KR)
Title: A Reusable Shopping Tote For Aiding Visual Inventory Check, and Method for Using The Same
Inventor: SHEEM SANG KEUN
IPC: A45C3/04
Filed: 2002-03-04
Abstract: PURPOSE: A reasonable package for particular items and methods of using the same are provided, which is used several times only for particular items by putting the name tags of the particular items on the package. CONSTITUTION: The reasonable package for particular items and methods of using the same include an item(5) for sale; a space(1) to put the item(5) for sale; an outlet(4); and a name tag(6) to recognize the item(5) when the item(5) for sale is the same one shown in the name tag(6) in order to enhance the efficiency and productivity of the sales.
Patent KR-20030072882-A (KR)
Title: Silicon light emitting device and display apparatus employing it
Inventor: CHOI BYEONG RYONG
IPC: H01L27/15
Filed: 2002-03-07
Abstract: PURPOSE: A silicon light emitting device and a display apparatus using the same are provided to be capable of carrying out a multi-function by integrating a multi-step transistor at the silicon light emitting device. CONSTITUTION: A silicon light emitting device is provided with the first type semiconductor based substrate(11), a doped region(15) formed at one surface of the substrate, the first and second semiconductor material part(21,23) formed at the other surface of the substrate, the first electrode(13) electrically connected to the doped region, the second electrode(17) electrically connected to the first semiconductor material part, and the third electrode(19) electrically connected to the second semiconductor material part. At this time, the second semiconductor material part is made of the second type semiconductor layer and the first semiconductor material part is made of the first type semiconductor layer, thereby forming a multi-step transistor.
Patent KR-20020053779-A (KR)
Inventor: BAEK SOO GON
IPC: E06C7/10
Filed: 2002-03-25
Abstract: PURPOSE: A composite material ladder is provided to reinforce intensity of adhesive portion as a weak point of the composite material by inserting a reinforcing material into the adhesive portion between crosswise and lengthwise rods of the ladder and enclosing the adhesive with the composite material. CONSTITUTION: The composite material ladder comprises a liner(11) introduced into an elbow or T shaped portion formed by crossing two straight pipes in order to supplement the weak position of adhered portion. The liner is prepared by admixing matrix of each layer and reinforcing material and by particular material having high tensile strength such as steel core and/or piano wire. The composite material ladder is produced by inter-arranging a plurality of liners to connect two straight lines adjacent to the adhesive portion at any desired angle; hardening the liner, the matrix and the reinforcing material; and assembling the crosswise and the lengthwise rods with the reinforced adhesive portion.