baber/WOPTO huggingface dataset:
Patent KR-20020096459-A (KR)
Title: Louver control method by using remote controller of air conditioner
Inventor: LIM SEONG YEOP
IPC: F24F13/08
Filed: 2001-06-20
Abstract: PURPOSE: A louver control method is provided to allow a plurality of air outlet louvers to be selectively open/shut through the use of a remote controller. CONSTITUTION: A louver control method comprises a step(200) of judging whether a remote controller is turned on; a step(210) of judging whether the user input signal is an air outlet louver automating key, if the remote controller is turned on; a step(220) of judging whether the previous key is a louver automating key, if the signal is an air outlet louver automating key; a step(230) of outputting a louver stop signal to a data transmission unit of the remote controller, if the previous key is a louver automating key; a step(240) of displaying louver operation stop; a step(250) of transmitting a louver automating signal to the data transmission unit, if the previous key is not a louver automating key; a step(260) of displaying automatic louver operation to a display of the remote controller; a step(270) of judging whether the user input signal is a left louver shut signal; a step(280) of outputting a left louver shut signal to the data transmission unit, if the user input signal is a left louver shut signal; a step(290) of displaying left louver shut state at the display of the remote controller; a step(300) of judging whether the user input signal is a left louver open signal; a step(310) of transmitting a left louver open signal to the data transmission unit, if the user input signal is a left louver open signal; and a step(320) of displaying left louver open state at the display.
Patent KR-20010071650-A (KR)
Inventor: HONG KWANG SEOK
Filed: 2001-06-23
Abstract: PURPOSE: A twenty-question game method and apparatus is provided to increase a user's ability to study a vocabulary by enabling the user to recognize/compose characters and voices and to play a game suitable for a vocabulary level. CONSTITUTION: A user presses a start button in order to start a twenty-question game. In case that a computer answers and the user puts a question, the computer selects a word and outputs a question request message to the user(100). A counting is started(102). The user puts a question to the computer(104). The computer recognizes the question referring to a keyword of a word included in the question(106). In case that the keyword is recognized, a field including the keyword is searched(110). The computer compares whether a vocabulary selected is included in the user's question(114). In case that the vocabulary isn't included in the question, '1' is added(118). It is checked whether the number of counting is above '20'(120). A message, "the computer wins", is outputted(122). A message, "the user wins", is outputted(124).
Patent KR-20030001090-A (KR)
Title: Oxide etcher
Inventor: SONG SANG BAEK
IPC: H01L21/02
Filed: 2001-06-28
Abstract: PURPOSE: An apparatus for etching an oxide layer is provided to prevent a bending phenomenon of a gas supply line by forming a junction portion of the gas supply line connected with a chamber as a shape of elbow. CONSTITUTION: A gas supply line(22) is connected with a gas inlet portion(20) of an upper portion of a chamber. At this time, a junction portion(24) between the gas supply line(22) and the gas inlet portion(20) is formed with an elbow shape. The length of the junction portion(24) is approached to a curved portion. A bending phenomenon of the junction portion(24) is prevented by the above structure of the junction portion(24) when a GAP is moved to an upper direction or a lower direction. Accordingly, the leakage of gas is prevented by the above structure of the junction portion(24). The length of the gas supply line(22) the except for curved portion is about 23cm.
Patent KR-20030002227-A (KR)
Title: Refence generator for increasing reference voltage margine
Inventor: KANG YEONG MIN
IPC: G11C11/22
Filed: 2001-06-30
Abstract: PURPOSE: A reference voltage generator for increasing a margin of a reference voltage is provided to generate a uniform reference voltage to obtain a minimum signal margin of an FeRAM by improving a structure of the reference voltage generator. CONSTITUTION: A reference voltage generator is formed with a transistor(100) and a ferroelectric capacitor(200) having a predetermined area in order to generate a reference voltage for driving plural sub bit lines(/BL0,/BL1) of ferroelectric memory cells. The transistor(100) is connected with a reference cell plate line(RCP) and the plural sub bit lines(/BL0,/BL1). The transistor(100) has a gate connected with a reference word line(RWL). The transistor(100) is used for supplying the reference voltage to the plural sub bit lines(/BL0,/BL1). The ferroelectric capacitor(200) is connected with the transistor(100) and the reference cell plate line(RCP).
Patent KR-20030008594-A (KR)
Title: An apparatus for test of glass antenna for automobile and the method for the same
Inventor: CHO HONG SEOK
IPC: H01Q1/32
Filed: 2001-07-19
Abstract: PURPOSE: An apparatus and method is provided to prevent deterioration of reliability of product by automatically testing disconnection of antenna through the use of RF network analyzer, while shortening testing time and reducing costs. CONSTITUTION: An apparatus for testing antenna disconnection of automobile glass, comprises a test board(100) on which a glass(120) equipped with an antenna(121) to be tested; a plurality of allocation units mounted on the test board, and which supports an outer end of the glass and disposes the glass at an accurate test position; a detection unit for detecting characteristic frequency value of the antenna disposed on the test board; a computer(300) for receiving, through a LAN, the data detected by the detection unit, comparing the data with a reference characteristics frequency value, and judging whether the error falls within the preset error range; a display unit for displaying the result of judgement of the computer; and a control unit(400) for controlling operation of the detection unit and allocation units.
Patent KR-20030009789-A (KR)
Title: An airtextured nylon filament
Inventor: JUNG SANG U
IPC: D01F6/60
Filed: 2001-07-24
Abstract: PURPOSE: Provided is a nylon composite fiber obtained by combining a nylon multifilament having a triangle section with a nylon multifilament having a titanium oxide content of 1.2 to 3.0 wt.%. It exhibits a natural streaky effect and has a good gloss effect which dimly glitters on a ground. CONSTITUTION: The composite fiber is characterized in that a nylon multifilament having a triangle section and a nylon multifilament having a titanium oxide content of 1.2 to 3.0 wt.% are combined in a ratio of 20 to 60 wt.% : 80 to 40 wt.% and have an interlacing number of 40 to 90 per 1m yarn. The composite fiber has a stiffness of 3 to 6 g/d and an elongation of 30 to 60%.
Patent KR-20020033496-A (KR)
Inventor: KATO TETSUYA
IPC: G06F1/26
Filed: 2001-08-10
Abstract: PURPOSE: To solve the problem of wasteful consumption of power in a self- powered USB equipment. CONSTITUTION: An electric power source controlling switch 23 is provided in a main electric power source circuit 21 of the USB equipment 1. The presence of a voltage in an electric power source terminal 10 of +5 V in a USB port is detected by a control circuit 15 to turn on and off an electric power source control switch 23. A switch 18 is connected to a pull-up resistance 17 in series. The pull-up switch 18 is turned on and off with a time lag of small extent with respect to the control switch 23.
Patent KR-20010090077-A (KR)
Inventor: KANG NA HYEON
IPC: H04B7/19
Filed: 2001-09-10
Abstract: PURPOSE: A method for generating a time signal in a mobile terminal is provided to offer exact time information to mobile terminals after continuously receiving it through a GPS using CDMA technology. CONSTITUTION: A user initializes his mobile terminal by turning on the power(S10,S20). Time data are transferred to a base station through a GPS using a satellite(S30). If the time data are transferred to the base station, a sync channel message is transmitted to the mobile terminal(S40). If the sync channel message is transmitted to the mobile terminal, the mobile terminal enters to a receiving standby state(S50). Then the mobile terminal transmits a message for call setup or location registration to the base station(S60). If the message is transmitted to the base station, the mobile terminal generates a time signal every scheduled time so that the user can recognize the exact time(S70,S80).
Patent KR-20030022574-A (KR)
Title: Apparatus for measuring torque simulation stirrer
Inventor: JUNG GYU HWAN
IPC: G01L3/10
Filed: 2001-09-11
Abstract: PURPOSE: A device for measuring torque of stirrers for a model test is provided to accurately measure the torque on shafts of stirrer models and process the torque in real time, thereby improving the reliability of model test data for stirring capacity and life span of the stirrers. CONSTITUTION: A glass melting furnace model is formed of a refiner model, a forehearth model, and a feeder model. A torque meter(30) is mounted at a shaft(20b,22b,24b) of each stirrer model(20,22,24) installed at upper and lower streams of the forehearth model for measuring torque. An indicator(40) displays torque values from the torque meter. An analog-to-digital converter(50) converts an analog signal from the display element into a digital signal. A computer(60) processes the digital signal from the analog-to-digital converter as data as to the torque acting on the shaft of the stirrer model.
Patent KR-20030022627-A (KR)
Title: Door glass on-off controller in a car
Inventor: KWAK CHANG SUN
IPC: B60J5/04
Filed: 2001-09-11
Abstract: PURPOSE: A device for controlling the opening and shutting of a door glass of a vehicle is provided to simultaneously shut the door glass and a sunroof by operating a key set mounted outside a door, although starting is turned off with the door glass open. CONSTITUTION: A device for controlling the opening and shutting of a door glass(51) of a vehicle comprises a key set(10) mounted outside a door; a relay(20) outputting an electric signal outside the moment sources of electricity is communicated by a switch; and a regulator(40). The relay is connected with the key set. In the regulator, a drive motor open and shuts the door glass or a sunroof glass(52), rotating forward or reversely according to a signal input from the relay. The relay comprises an open relay and a close relay. The close relay is connected to a window regulator opening and shutting the door glass and a sunroof regulator opening and shutting the sunroof glass. The open relay is connected to the window regulator and the open relay controls the opening and shutting of just the door glass. If the door is locked by the external key set, the relay is on and the regulator is operated. Thus, the door glass and sunroof are simultaneously shut.
Patent KR-20010107802-A (KR)
Title: 무선랜을 이용한 통합 무선 공유 서버 장치와 그 방법
Inventor: LEE JANG HEE
Filed: 2001-09-25
Abstract: 본 발명은 사무실 등의 일정한 공간 내에서 사용하는 전화와 LAN을 무선으로 연결하여 사용할 수 있게 하기 위하여 무선 LAN의 Access Point(무선공유기)와 PBX(구내 전화교환기)를 하나의 장치로 통합하고, 일반 유선 전화기 뿐만 아니라 별도의 전화기가 없이도 PC만으로 전화 통화를 할 수 있게 하며, 전화 통화시에는 Internet Traffic을 자동으로 조사하여 회선 상태가 양호할 시는 자동으로 Internet 전화로 연결할 수 있게 하는 장치와 그 방법에 관한 것이다. 
     이를 위하여 첫째, 외부로 부터 유선으로 들어오는 Network 회선(인터넷 전용선)과 전화 회선을 동시에 접속하고 내부의 무선 LAN Access Point와 무선 전화 교환기 기능을 동시에 가지는 WOS(Wireless Office Server) 장치와 둘째, PC 에서무선 LAN 뿐만 아니라 별도의 전화기가 없이도 PC 자체의 마이크 및 스피크 기능을 이용해 전화 통화를 가능하게 하는 기능과 셋째, LAN카드를 외장형으로 만들고 일반 전화기와 연결하여 무선 전화로 사용할 수 있게 하며 PC와도 동시에 연결하여 PC의 무선 LAN카드 기능을 할 수 있게하는 외장형 무선 연결기, 넷째, PC에서 전화번호부, 통화내역관리, 자동전화수.발신 기능, 화상전화기능, 녹음/녹화 및 재생기능 등을 수행하는 S/W로 구성되는데 그 특징이 있다. 
     본 발명에 따르면 사무실 내에 전화 회선 및 Network 회선이 없어 쾌적한 환경을 만들 수 있고, 사무실 내에서의 위치 이동시 회선 및 전화 설치 공사를 할 필요가 없으며, 사무실 이전시에도 별도의 회선 공사가 전혀 필요 없어 경비절감과편리함을 제공해줄 뿐만 아니라 PC에 설치하는 S/W를 통해 유용한 여러가지 기능을 사용하여 생활에 편의를 제공하고 업무 효율을 높이는 효과를 얻을 수 있다.
Patent KR-20030026138-A (KR)
Title: An inhibitor switch for automatic transmitter
Inventor: PARK HYO SIK
IPC: F16H59/02
Filed: 2001-09-25
Abstract: PURPOSE: An inhibitor switch of an automatic transmission is provided to improve sealing efficiency by assembling a case with a cover through ultrasonic bonding, and to increase the durability by installing a quad ring. CONSTITUTION: An inhibitor switch of an automatic transmission is composed of a case(100) having a power terminal including plural metal wires and a first through hole; a printed circuit board(200) installed in the first through hole to transmit a signal with voltage division by plural resistors; a signal connector(300) turned and installed in the upper part of the printed circuit board; a control panel(400) having an assembling part mounting the signal connector and a turning part installing the power connector; a cover(600) combined with the opening of the case through ultrasonic bonding; and a packing(700) installed in the assembling portion of the case and the cover. Sealing efficiency is improved with assembling the case with the cover through ultrasonic bonding, and the endurance of the switch is increased with using a quad ring. The power terminal is installed easily by setting with injection molding additionally.
Patent KR-20030028889-A (KR)
Title: Method for processing data between time lapse vcr and quad spilt board
Inventor: LEE JUN HUI
IPC: H04N7/18
Filed: 2001-10-04
Abstract: PURPOSE: A method for processing data between a time lapse VCR and a quad sprite board is provided to normally communicate data between the time lapse VCR and an inner microcomputer of the quad sprite board while confirming a counterpart's flag. CONSTITUTION: When a display reproduction key is inputted from a key input unit(201), Q flag generated from a quad microcomputer inside a quad sprite board is confirmed to judge whether or not the Q flag is a data transmission flag(202). When the Q flag is not the data transmission flag, a switching IC of the time lapse VCR short-circuits to reproduce display data according to the reproduction key(203). When the reproduction of display data is completed, V flag generated from a VCR microcomputer is converted into a data non-transmission flag(206) and the switching IC open-circuits. When display data captured by multiple cameras is inputted, the V flag is confirmed to judge the whether or not V flag is the data transmission flag. When the V flag is the data non-transmission flag, the display data is controlled to output. When the display data has been output, the Q flag is converted into the data non-transmission flag.
Patent KR-20030030494-A (KR)
Title: An aromatic shoes
Inventor: HWANG HO YOUNG
IPC: A43B13/00
Filed: 2001-10-11
Abstract: PURPOSE: Provided are shoes with diffusing aroma which include aromatic in a midsole of the shoes to diffuse aroma instead of diffusing odor whenever one walks so that they give users freshness in walking. CONSTITUTION: In the shoes which comprise the parts of: a bottom sole(20) which attaches a heel(20a) with certain height; a midsole(30) which is attached to the upper side of the bottom sole with forming an auxiliary sole for preventing transformation(32) at rear lower side; and an outer cover(10) which is attached to the upper side of the midsole to surround users' foot, the shoes with diffusing aroma are characterized by including a ventilation part with plural holes and the aromatic(50) under the ventilation part in the midsole.
Patent KR-20010110228-A (KR)
Title: 금융시장 거래자 내지 거래시스템의 기술 및 특성 진단시스템
Inventor: KANG CHEOL JOON
Filed: 2001-10-16
Abstract: 본 발명은 금융시장 거래자 내지 거래시스템의 기술 및 특성을 진단하는 시스템에 관한 것으로, 더욱 상세하게는 다양한 시장거래환경을 가상적으로 창출하여 거래자나 거래시스템으로 하여금 시스템 또는 거래 참여자를 상대방으로 하여 매매를 하도록 한 후 이들 거래자나 거래시스템의 기술과 특성을 진단하는 시스템에 관한 것이다. 
     이를 위하여 본 발명은, 거래자 또는 거래시스템이 매매를 할 시장의 거래조건과 시장환경변수를 입력함으로써 가상시장을 창출하는 단계, 상기 창출된 시장에서 등장하는 뉴스와 그 효과를 입력하는 단계, 뉴스 생성부에서 생성시킨 가격 변동 뿐만 아니라 확률적 임의 변동과정에서 추출되는 임의 변동을 포함하여 시장가격이 생성되는 단계, 각종 주문을 입력하고 대기주문 집계표에 따라 일정조건에 맞는 주문들을 일정 순서에 의해 체결시키는 단계, 거래결과 장부 기록이 이루어지는 단계, 거래자나 거래시스템이 거래했던 시장의 특성을 분석하고 이들의 기술과 특성을 일정지표에 의하여 진단하는 단계로 이루어진 것에 특징이 있다.
Patent KR-20010107816-A (KR)
Title: 라운드 형상의 약포지 및 그 제조방법과 장치
Inventor: LEE SANG KUK
Filed: 2001-10-18
Abstract: 본 발명은 환자가 약을 복용하는 경우 약포지의 하단양측 모서리부에 정제(알약)나 산제(가루약)가 잔류되는 현상을 방지하여 약의 정량 복용을 용이하게 하기 위한 약포지 및 그 제조방법과 장치를 제공하기 위한 것으로, 약포지 용착장치의 용착형성부의 모서리부가 기존의 직각이 아닌  라운드 형상으로 되어 있어 이로부터 용착되어진 약포지 하단양측 모서리부가 라운드 형상으로 되어있는 것을 특징으로 한다.
Patent KR-20010104410-A (KR)
Title: 냉장고용 다단도어
Inventor: JUNG MIN CHUL
Filed: 2001-10-18
Abstract: 본 발명은 냉장고용 도어에 관한 것으로 더욱 상세하게는, 냉장실의 과도한 냉기 유실을 방지하여 전력낭비를 줄일 수 있으며, 냉장고에 저장된 음식물의 신선함을 더욱 오래 유지할 수 있도록 냉장실의 도어를 다단으로 구성 냉장고용 다단도어에 관한 것이다. 
     이를 위하여 본 발명은, 각각의 손잡이(28),(34)가 설치된 상부도어(20)와 하부도어(30)가 상하 2단으로 장착되어 냉장실(12)을 개폐하는 냉장고용 도어에 있어서, 상기 냉장실(12)의 상측에 장착되는 상부도어(20)의 하부는 외측방으로 하향 경사지게 하향경사부(21)가 형성되고, 상기 냉장실(12)의 하측에 장착되는 하부도어(30)의 상부는 상기 상부도어(20)의 하향경사부(21)와 형합되도록 내측방으로 상향 경사지게 상향경사부(31)를 형성하여 구성된 것을 특징으로 한다.
Patent KR-20030032745-A (KR)
Title: One-axis robot using belt
Inventor: KONG JONG TAK
IPC: F16H7/08
Filed: 2001-10-19
Abstract: PURPOSE: A single-shaft robot using a belt is provided to stably control and maintain tension by simultaneously performing tension control and support in the driving direction of the belt, and tension control and support in the perpendicular direction to the driving direction. CONSTITUTION: A single-shaft robot using a belt(140) has a main frame(100); a first gear(150) mounted to one end of the main frame and rotated by a motor(120); a second gear(160) mounted to the other end of the main frame; the belt engaged with the first and second gears and turned by the power supplied through the first gear; a tension control member(200) to support one side of the belt in the driving direction and control tension of the belt; and a support member(300) to support one side of the tension control member in the perpendicular direction to the driving direction of the belt. Accordingly, effective control of tension of the belt is performed and stable tension is maintained.
Patent KR-20030034825-A (KR)
Title: Extract of Acantho panax and pharmaceutical compositions for prevention or treatment of osteoporosis containing the same
Inventor: BAEK JEONG HWA
IPC: A61K36/254
Filed: 2001-10-27
Abstract: PURPOSE: A method of manufacturing an Acanthopanacis Cortex extract having inhibition effects on proliferation of osteoblast and osteoclast is provided. A pharmaceutical composition and a health food composition for the prevention and treatment of osteoporosis contain the Acanthopanacis Cortex extract as an active ingredient. CONSTITUTION: Acanthopanacis Cortex containing Acanthopanax Senticosus(Rupr. et Maxim.) Harms, Acanthopanax sessiliflorus Seem. or the like is characteristically extracted in water or an aqueous alcohol solution. The aqueous alcohol solution is selected from the group consisting of 5 to 10% ethyl alcohol or 5 to 100% methyl alcohol. The Acanthopanacis Cortex extract can be effectively used in prevention and treatment of osteoporosis, bone degenerative diseases and rheumatoid arthritis.
Patent KR-20020003842-A (KR)
Inventor: CHOI EUN MI
IPC: G06F17/00
Filed: 2001-10-30
Abstract: PURPOSE: An on-line service system is provided to enable an Internet novice to receive an on-line service by supplying a service for directly connecting to a web page supplying an on-line service and constructing an information selection type screen for displaying screen information for a connection to the corresponding web page and a use thereof using a selection unit as a mouse. CONSTITUTION: A service supplying device(10) generally controlling a general operation is combined with a plurality of subscriber terminals(30) and a plurality of service providing servers(40) through the Internet. The service supplying device(10) and the service providing servers(40) may be combined therewith through an exclusive network. The subscriber terminal(30) may be combined with a predetermined communication network and has a predetermined display unit. The service providing server(40) is a server of a service providing company supplying an on-line service through the Internet. A network connection unit(11) performs a data transmitting/receiving process to the subscriber terminal(30) and the service providing server(40). A service controlling unit(12) generally processes operations of the service supplying device(10). A web page information storing unit(13) stores various kinds of screen information to be supplied to the subscriber terminal(30) and the service providing server(40). A data memory(14) temporarily stores various kinds of information being processed in the service controlling unit(12). A database(15) stores information of the service providing server(40) and service supplying server information etc. An operator terminal(16) having a predetermined input/output device is provided for performing an interface with the operator.
Patent KR-20030035424-A (KR)
Title: Automobile Console Armrest
Inventor: KIM BYEONG UK
IPC: B60R7/04
Filed: 2001-10-31
Abstract: PURPOSE: A console armrest for a vehicle is provided to easily control an angle even manually and to conveniently control the angle of a console armrest. CONSTITUTION: A hinge shaft(13) is fixed on one side of a console housing(11) having a receiving space(12). A console armrest is rotated by a hinge hole(31) combined with the hinge shaft. Protrusions(14) are formed on the hinge shaft at a specific interval. An elastic stopper(32) protruding toward the protrusions is prepared in a portion of the inner face of the hinge hole. The stopper is a leaf spring(32a). A roller(32b) is installed on the end of the leaf spring.
Patent KR-20030037667-A (KR)
Title: Polymer Organic Electroluminescence Device and Fabrication Method for the same
Inventor: KIM CHANG NAM
IPC: H05B33/22
Filed: 2001-11-07
Abstract: PURPOSE: A polymer organic electro luminescence device is provided to be capable of preventing an electric short circuit between electrodes of the device caused when forming an organic luminescence layer with a polymer. CONSTITUTION: A plurality of first electrodes(12) are formed in one direction on a substrate(11). An insulation film(14-1) is formed on the substrate(11) so as to insulate the first electrodes(12). A conductive polymer hole injecting layer(16-1) is formed on upper parts of the first electrodes(12) and the insulation film(14-1) so that the insulation of the first electrodes is maintained by the insulation film. A plurality of second electrodes(17) are formed on the hole injecting layer and an organic luminescence layer(16-2) in a vertical direction to the first electrodes(12).
Patent KR-20030040879-A (KR)
Title: Thermoplastic resin composition having improved weld-strength
Inventor: CHAE SEUNG HUN
IPC: C08L55/02
Filed: 2001-11-16
Abstract: PURPOSE: A thermoplastic resin composition is provided, to improve the hot melt deposition, thereby enhancing the adhesive power and the adhesive strength with other plastic resin and the releasability from metal. CONSTITUTION: The thermoplastic resin composition comprises 20-40 parts by weight of a graft acrylonitrile-butadiene-styrene copolymer; 60-80 parts by weight of a heat resistant copolymer; and 1-5 parts by weight of a low molecular weight acryl-based additive. Preferably the graft acrylonitrile-butadiene-styrene copolymer is obtained by grafting an aromatic vinyl compound and a cyano vinyl compound onto a conjugated diene rubber latex; the heat resistant copolymer is a copolymer of α-methylstyrene and acrylonitrile; and the low molecular weight acryl-based additive has a molecular weight of 1,000-20,000.
Patent KR-20010110402-A (KR)
Title: 휴대폰 중심 축의 화상 카메라와 안테나의 기능
Inventor: MA GIL SEONG
Filed: 2001-11-27
Abstract: 본 동영상 카메라 휴대폰은 상대방과 얼굴을 보고 전화할 때에 화상 카메라를 별도로 휴대하고 다니거나 조작 할 필요가 없다. 
     휴대폰 중앙 축에 카메라가 고정되어 있어 펼치면 카메라가 외부로 노출되어 자신을 향하고 접으면 카메라는 안전하게 안으로 들어가 카메라 보호도 할 수 있는 형태를 갖추고 있다. 동영상이나 스틸사진을 상대방에게 바로 전송하기에 편한 형태를 지니고 있는 이 발명품은 카메라의 방향이 달라지는 점에 주목해야한다. 
     안테나 또한 중앙 축 양끝 내부에 고정되어 있어 일반휴대폰처럼 외부로 길게 나오지 않게 만들어 형태를 유지하는 장점을 지니고 있다.