baber/WOPTO huggingface dataset:
Patent KR-20120021467-A (KR)
Title: THE CELL LINE STABLY EXPRESSING BOTH 5-HT6R AND G-PROTEIN α15 GENE AND CAN BE ACCEPTED TO DIRECTLY IMAGING OF CALUCIUM-FLUORESCENT TECHNIQUE AND HIGH-THROUGHPUT SCREENING METHOD OF SELECTIVE LIGANDS BY USING CALCIUM-IMAGING
Inventor: KIM DONG HYUK
IPC: C12Q1/02
Filed: 2010-08-02
Abstract: PURPOSE: A cell line which is prepared by permanently transfecting serotonin 6 receptor gene and permanently transforming G-protein alpha 15 gene is provided to detect human serotonin 6 receptor-specific ligand. CONSTITUTION: A cell line in which GPCR(G-protein coupled receptor) gene and G-protein alpha 15 gene are simultaneously expressed is prepared by transduction of a vector expressing GPCR gene and G-protein alpha15 gene. A method for screening GPCR-specific ligand comprises: a step of treating a test compound to the cell line; a step of measuring receptor activity of the cell line; and a step of comparing the result with the activity with untreated cell line.
Patent KR-20120015854-A (KR)
Inventor: LEE SANG GYU
IPC: A63H5/00
Filed: 2010-08-13
Abstract: PURPOSE: A toy device recognizing a pattern code, and an operation method thereof are provided to enable preschool children to easily play with the toy device. CONSTITUTION: A toy device(1000) recognizing a pattern code recognizes the pattern code printed on a published product for extracting audio signals, video signals or multimedia signals from the pattern code, and selectively outputs each audio, video, or multimedia. The toy device comprises a pattern code sensor(100), a memory unit(200), a playing output unit(300), a microphone unit(400), and a controller(500). The pattern code sensor is inserted into books or toys for children. The memory unit searches for an address matching the predetermined identifying number on the pattern code.
Patent KR-20120016367-A (KR)
Title: Apparatus for producing flat-tubular electrode supporter and the method
Inventor: SEO DOO WON
IPC: H01M8/12
Filed: 2010-08-16
Abstract: PURPOSE: A manufacturing apparatus for a flat-tubular electrode supporter is provided to minimize the sealing portion of a manifold, and not to have the joint portion of the flat-tubular electrode supporter, thereby preventing the reduction of durability and leakage accident. CONSTITUTION: A manufacturing apparatus for a flat-tubular electrode supporter comprises a tube processing flame member(10), which is separated to two bodies, having a tube placement space part, in which a flat tube is arranged between two bodies, and a frame pressing device(20) blocking the end of the flat tube by pressurizing the tube processing frame member.
Patent KR-20120018565-A (KR)
Title: Continuous supporting structure of corrugated steel web psc beam using secondary tendon and method for constructing the same
Inventor: KWEON OU KEUN
IPC: E01D21/00
Filed: 2010-08-23
Abstract: PURPOSE: A continuous support structure of a PSC girder using a secondary tendon and a method for constructing the same are provided to enhance the field workability of a continuous support and improve appearance since there is no need for a separate tendon arrangement. CONSTITUTION: A continuous support structure of a PSC girder using a secondary tendon is as follows. Two girders(G1,G2) are coupled to pier(P) by a joint plate(101). Continuity is made using a secondary tendon(133) that is arranged based on an increased load during construction.
Patent KR-20120030848-A (KR)
Title: Cooling apparatus for electric vehicle
Inventor: LEE WON MAN
IPC: B60K11/00
Filed: 2010-09-20
Abstract: PURPOSE: A cooling device for electric vehicles is provide to simplify a layout of cooling water pipe and to reduce the number of components because one cooling module is enough to evenly cool the entire components. CONSTITUTION: A cooling device(100) for electric vehicles comprises a driving motor(10), a charger(20), a LDC(30), an inverter(40), a cooling module(110), and a water pump. The water pump is connected through the LDC and a second cooling water pipe. The LDC is connected through the inverter and a third cooling water pipe(CP3). The inverter is connected through the driving motor and a fourth cooling water pipe. The driving motor is connected through the charger and a fifth cooling water pipe(CP5). The charger is connected through the cooling module and a sixth cooling water pipe(CP6). The cooling water circulates through each cooling water pipe.
Patent KR-20120034433-A (KR)
Title: Multipath maintenance method for mobile ad hoc networks using node position information
Inventor: KIM CHEE HA
IPC: H04L12/28
Filed: 2010-10-01
Abstract: PURPOSE: A multipath maintaining method using location information of a node is provided to maintain a route in a MANET and minimize an increase of a control message which maintains a route. CONSTITUTION: A source node(100) sets a multipath to a destination node(110). When one of route nodes on the multipath moves, a mobile node(200) calculates distance information between a first location and a second location. When the calculated distance is out of a preset transmission range, the mobile node selects a neighbor node(210) closest to the second location. The source node maintains a route to the destination node through the selected neighbor node.
Patent KR-20110040711-A (KR)
Title: Methods of controlling interference between neighbouring cells and apparatus for managing interference
Inventor: LEE HEESOO
IPC: H04B15/00
Filed: 2010-10-12
Abstract: PURPOSE: A method of controlling interference between neighboring cells and an apparatus for managing interference are provided to dynamically manage neighboring cells in a circumference in which neighboring cell interference is changed temporally. CONSTITUTION: An interference control device(100) transfers a set of a decided radio resource attribute pattern to at least one cell managed by the interference control device. In addition, the interference control device transfers a function to at least one cell managed by the interference control device. The function maps a cell ID with the radio resource attribute pattern for each cell managed by the interference control device. The interference control device determines an optimal radio resource attribute pattern set by considering the circumference of the system.
Patent KR-20120068081-A (KR)
Title: Crosswalk walking assistance system and controlling method thereof
Inventor: HA TAE SIN
IPC: B25J13/00
Filed: 2010-10-26
Abstract: PURPOSE: A walking assist system of a crosswalk and a control method thereof are provided to accurately move a robot without straying from a guide line because infrared sensor recognizes a guide line with light reflectivity different from the road surface. CONSTITUTION: A walking assist system of a crosswalk comprises a guide rail(10), a robot(30), and a controller(20). The guide rail is formed along a boundary line of a crosswalk. The robot moves along the guide rail. The controller is connected to the guide rail.
Patent KR-20120088045-A (KR)
Title: aluminium alloy plate heat treatment apparatus
Inventor: HAN BYUNG SOO
IPC: C21D9/46
Filed: 2010-10-28
Abstract: PURPOSE: A heat treatment device for manufacturing an aluminum alloy sheet is provided to prevent an inflow of steam into a heating furnace in a quenching process and a temperature drop of the heating furnace caused by an inflow of external air when opening a lower slide door. CONSTITUTION: A heat treatment device for manufacturing an aluminum alloy sheet comprises a heating furnace(20), a lifting roof(50), an alloy sheet jig(60), and a lifting unit(70). The heating furnace heats an aluminum alloy sheet for solution heat treatment of the aluminum alloy sheet. Air moved by the suction force of a circulating fan(40) penetrates an upper opening of the lifting roof. When the lifting roof is arranged in the upper part of an internal chamber(30), internal air of the internal chamber flows into a circulation fan. The lifting roof covers a lower opening of the heating furnace when the lifting roof is arranged in the lower part of the internal chamber so that a flow of heat and steam into/out of the heating furnace is secluded. The alloy sheet jig fixes the aluminum alloy sheet. The alloy sheet is lifted between the heating furnace and a cooling tank(90) so that the solution treatment and the quenching treatment of the aluminum alloy sheet are processed.
Patent KR-20120044773-A (KR)
Title: Biomimetic molecule and self-assembly comprising the same
Inventor: LEE SANG YUP
IPC: C07C233/51
Filed: 2010-10-28
Abstract: PURPOSE: A biomimetic molecule is provided to have peptide bonds inside, and to have hydroxy functional groups at both ends, thereby having excellent hydrophilicity, and self-assembility as spherical shape. CONSTITUTION: A biomimetic molecule is in chemical formula 1. A manufacturing method of the biomimetic molecule comprises: a first step obtaining reactant by reacting a compound in chemical formula 3 with salt of a compound in chemical formula 4; and a second step de-protecting the reactant in the first step. In chemical formulas, x is respectively a C1-4 alkylene group, n is an integer from 1-12, and Y is a protection group. A self-assembly is formed by self-assembling of the compound in chemical formula 1.
Patent KR-20120045436-A (KR)
Title: Solar cell module
Inventor: SEO BEOM DOO
IPC: H01L31/048
Filed: 2010-10-29
Abstract: PURPOSE: A solar cell module is provided to improve power generation efficiency including a filling material which has high adhesive properties with other components or a substrate of a module. CONSTITUTION: A solar cell module includes a filling material which encapsulates the active layer such as a silicon wafer, a back sheet(14), and a light receiving substrate(11). The filling material comprises a first filling material(12a) and a second filling material(12b). The first filling material is attached to the light receiving plate while encapsulating a photo electromotive device. The second filling material is attached to the back sheet while encapsulating the photo electromotive device.
Patent KR-20120046621-A (KR)
Title: Refrigerator with vacuum insulation panel
Inventor: SO JAE HYUN
IPC: F25D23/06
Filed: 2010-11-02
Abstract: PURPOSE: A refrigerator having a vacuum insulator is provided to improve the air intake and dehumidification performance of a getter and to extend the service life of the vacuum insulator. CONSTITUTION: A refrigerator comprises a case(150) and a vacuum insulator(110). The case includes an outer case(151a) and an inner case(151b). The vacuum insulator is fixed to the interior surface of the outer case. The vacuum insulator comprises an exterior material, at least one side of which is attached to the interior surface of the outer case, a core which is sealed in the exterior material, and a getter(116) which is arranged to be deviated from the center line of the core toward the outer case.
Patent KR-20120049433-A (KR)
Title: 대역폭 특성을 향상시키는 제한 증폭기
Inventor: YU XIAOHUA
IPC: H03G3/20
Filed: 2010-11-08
Abstract: 본 발명의 실시 예에 따른 제한 증폭기는, 차동 신호들을 입력받아 중간 차동 신호들을 출력하는 입력단; 캐스케이드로 연결되고, 상기 중간 차동 신호들을 입력받아 증폭하여 새로운 중간 차동 신호들을 출력하는 이득단들; 상기 이득단으로부터 출력된 중간 차동 신호들을 증폭하여 차동 신호들을 출력하는 출력 버퍼; 및 상기 출력 버퍼의 직류 오프셋을 제거하기 위하여 상기 직류 오프셋을 상기 입력단에 제공하는 저대역 필터를 포함하고, 상기 이득단들 각각은, 게이트 저항을 갖는 소스 팔로워 피드백을 가지는 공통 소스 증폭기로 구현된다. 본 발명에 따른 제한 증폭기는, 게이트 저항을 갖는 소스 팔로워 피드백 구조의 이득단을 구비함으로써, 대역폭 특성을 향상시킬 수 있다.
Patent KR-20110084088-A (KR)
Title: Automobile toy
Inventor: NAKAYAMA KENJI
IPC: A63H17/26
Filed: 2010-11-08
Abstract: PURPOSE: A toy car equipped with a wing member is provided to suppress plastic deformation or damage of a stay member. CONSTITUTION: A toy car comprises: a front wheel axle(2) which supports front wheels to be shaken to the right and left; a rear wheel axle which supports rear wheels; and a body and a wing member(7). The front wheel axle is supported in a front chassis(5). The rear wheel axle is supported in a rear chassis(6). The front chassis is equipped with a lower front chassis(51) and an upper front chassis(52). The rear chassis is equipped with a driver motor having a motor shaft connected to the rear wheel axle.
Patent KR-20120049048-A (KR)
Title: Composition for the prevention and treatment of impotency containing higenammine
Inventor: HYUN JAE SEOG
IPC: A61P15/00
Filed: 2010-11-08
Abstract: PURPOSE: A composition containing higenamine or pharmaceutically acceptable salt thereof is provided to enhance erection and corpora cavernosa relaxation. CONSTITUTION: A composition for preventing or treating impotency contains a compound of chemical formula 1 or pharmaceutically acceptable salt thereof as an active ingredient. The composition additionally contains PDE-5(phosphodiesterase type 5) inhibitor. The composition is a pharmaceutical, food, or pharmaceutical composition. The composition is manufactured in the form of powder, granules, tablets, capsules, suspensions, emulsions, syrups, oral formulations, or suppository.
Patent KR-20120051134-A (KR)
Title: Apparatus for automatically controlling close trunk of vehicle
Inventor: HONG KWANG HUN
IPC: B62D25/10
Filed: 2010-11-12
Abstract: PURPOSE: An automatic closing control device of a vehicle trunk is provided to automatically close a trunk lid in case of a car starts with the opening of a trunk lid without the direct operation of a driver. CONSTITUTION: An automatic closing control device of a vehicle trunk comprises a trunk lid sensing unit(1), a wheel sensing unit(2), a control unit(3), a trunk driving unit(4). The trunk lid sensing unit detects the opening of a trunk lid(5) and transfers to the control unit. The wheel sensing unit detects the rotation of a wheel and transfers to the control unit. The control unit controls the trunk lid to be closed through trunk driving unit in case of the information of the opening of a trunk lid and rotation of a wheel. The trunk driving unit closes and opens a trunk lid according to the control of a control unit.
Patent KR-20120052445-A (KR)
Title: Wheel cap apparatus for vehicle
Inventor: PARK BUM CHAN
IPC: B60B7/00
Filed: 2010-11-15
Abstract: PURPOSE: A wheel cap device for a car is provided to detach a wheel cap from a wheel without extra tools. CONSTITUTION: A wheel cap device(100) for a car comprises a body(110), a latch member(120), a latch member operating unit(130), and a cover member(140). The body is located in the front of a wheel for covering the fixing nut of a wheel. The latch member is comprised in the body and hanged to the fixing nut for fixing the body to the wheel. The latch member operating unit is installed to be movable in the body and detaches the latch member from the fixing nut for detaching the body from the wheel. The cover member is coupled with the body for covering the top of the fixing nuts. The cover member prevents the exposure of the latch member.
Patent KR-20120052126-A (KR)
Inventor: RO GYEONG OK
IPC: H04L9/32
Filed: 2010-11-15
Abstract: 본 발명은 휴대폰의 부당한 사용을 방지하기 위한 암호입력에 관한 것으로, 
종래의 휴대폰에 사용하는 비밀번호는 입력타수가 4타로 고정되고 조합할 수 있는 개수가 1만 개 밖에 안돼 비밀번호가 쉽게 유출되는 문제점이 있다. 
본 발명은 2바이트 문자인 한글을 비밀인증을 위한 암호로 사용하므로 입력타수가 유동적이고 조합할 수 있는 암호의 개수가 늘어나 보안성이 높다. 그리고, 암호입력은 휴대폰에서 지원하는 한글입력 방법을 따른다.  
한글암호는 비밀번호와 같은 4바이트를 기준으로, 기억할 문자 수는 2자로 줄고 조합가능한 개수는 1억 개가 넘어 기억하기 용이하면서 보안의 효과가 대폭 상승하여 예기치 않는 재산의 손실과 개인정보 유출을 사전에 방지할 수 있다.
Patent KR-20120052788-A (KR)
Inventor: KIM BYUNG SOOK
IPC: C23C14/58
Filed: 2010-11-16
Abstract: PURPOSE: A susceptor and a manufacturing method thereof are provided to prevent the delamination of a silicon carbide layer by manufacturing a bulk type susceptor. CONSTITUTION: A method for manufacturing a susceptor comprises a step of preparing a carbon structure(50) and a step of making the carbon structure react with silicon-containing gas to form a susceptor including silicon carbide. The carbon structure has a relative density of 40-80% and includes graphite.
Patent KR-20120055856-A (KR)
IPC: E04G13/00
Filed: 2010-11-24
Abstract: 본 발명은 초고성능 콘크리트 바닥판과 같은 콘크리트 구조물에서, 연속화 등을 위하여 콘크리트 내에 표면에서부터 내부로 갈수록 단면적의 크기가 커지는 사다리꼴 형태의 테이퍼진 오목홈을 효율적으로 형성할 수 있으면서도 신축가능한 구조로 이루어져, 반복 사용이 가능한 거푸집 장치 및 이를 이용하여 콘크리트 부재에 테이퍼 형상의 오목홈을 형성하는 방법에 관한 것이다.   
본 발명에서는 제1측면부(10)와 제2측면부(20)로 구분되며; 상기 제1측면부(10)와 제2측면부(20)는 각각 경사면부재와, 수직면부재와, 신축봉의 조립체로 이루어지고; 제1측면부의 바닥판부재 제2측면부의 제2바닥판부재는 신축이 가능하도록 서로 포개어져져 위치하고, 제1측면부의 수직면부재와 제2측면부의 수직면부재도 신축이 가능하도록 서로 포개어져서 위치하며; 서로 마주하는 상기 신축봉 회전부재(30)를 개재하여 서로 연결되고; 상기 회전부재(30)를 제1방향으로 회전시키게 되면, 신축봉이 서로 당겨져서, 포개져 있던 바닥판부재들이 더욱 겹치게 됨과 동시에 수직면부재들도 더욱 겹치게 되어, 제1측면부(10)와 제2측면부(20) 사이가 좁아져서, 거푸집 장치(1)를 오목홈(11)으로부터 빼낼 수 있도록 축소되는 거푸집 장치(1)가 제공되며, 이를 이용하여 오목홈(11)을 형성하는 방법이 제공된다.
Patent KR-20120057461-A (KR)
Title: Groundwater artificiality recharge method through tube well, and groundwater artificiality recharge apparatus applied the method
Inventor: LEE JOO YEOL
IPC: E03B3/15
Filed: 2010-11-26
Abstract: PURPOSE: An artificial recharge method of underground water through a tube well and an artificial recharge system of underground water therefor are provided to rapidly supply underground from a underground water recharge well to a underground water using well. CONSTITUTION: An artificial recharge system(100) of underground water through a tube well comprises an underground water recharge well(110), an underground water recharge tube(120), and an underground water recharge pump(130). The recharge well is formed to be adjacent to a water source(20). The recharge tube supplies water from the recharge well to an underground water using well(15). The recharge pump allows the water to be supplied from the recharge well to the underground water using well.
Patent KR-20110060851-A (KR)
Title: Stored multi-bit data characterized by multiple-dimensional memory state
Inventor: KALB JOHANNES A
IPC: G11C7/10
Filed: 2010-11-30
Abstract: PURPOSE: A stored multi-bit data characterized by multiple-dimensional memory state is provided to have at least two independent variables by including a step of storing at least two bits in a memory cell. CONSTITUTION: In a stored multi-bit data characterized by multiple-dimensional memory state, The state of the memory cell is defined by a single state parameter. The state of the memory cell comprises electric resistance The electric resistance is measured under relatively low resistance or low voltage. The state of the memory cell is characterized by a multiple state independent variable.
Patent KR-20120059132-A (KR)
Title: Apparatus for generating vibration
Inventor: HONG JUNG TAEK
IPC: H02K5/24
Filed: 2010-11-30
Abstract: PURPOSE: A vibration generator is provided to reduce noise generated from movements of a magnetic filed part by connecting a soft member to a damper for reducing impact and noise. CONSTITUTION: A housing(110) includes internal space. A soft member(120) is arranged in the internal space of the housing. A magnetic field part(130) comprises a yoke which is moved by mounting a magnet. A damper(140) reduces driving sound generated due to tilting of the yoke.
Patent KR-20120059178-A (KR)
Title: Accelerated cooling apparatus and flow control method of the same
Inventor: JUNG HYUN HO
IPC: B21B45/02
Filed: 2010-11-30
Abstract: PURPOSE: An accelerated cooling apparatus and a flow control method thereof are provided to minimize the difference between the actual masking time and a set masking time by referring the response time of a flow valve to adjust masking time. CONSTITUTION: An accelerated cooling apparatus comprises a masking time calculating unit(36) and a switching unit(35). The masking time calculating unit adjusts a masking operation by referring the response time of a flow valve(23) that is obtain in advance and stored. The switching unit controls flow with an open loop control method when a masking operation is activated and with a closed loop control method when the masking operation is inactivated. The masking time calculating unit calculates a making time with the following equation, masking time = set masking length - (steel plate conveying speed X flow valve response time).
Patent KR-20120059284-A (KR)
Title: Method of forming channel of bio chip using photo imageable ceramic sheet and bio chip manufactured by the method
Inventor: YOON YOUNG JOON
IPC: G01N33/48
Filed: 2010-11-30
Abstract: PURPOSE: A method for forming a channel of a biochip is provided to form the channel by photolithography using a photosensitive ceramic sheet. CONSTITUTION: A method for forming a channel of a biochip comprises: a step of preparing a slurry containing ceramic powder, binders, and solvent(S110); a step of selectively exposing the ceramic sheet(S130); a step of developing the selectively exposed ceramic sheet(S140); a step of laminating the ceramic sheet(S150); and a step of sintering the ceramic sheet(S160). The ceramic powder is formed of alumina or amorphous cordierite. The slurry contains 10-30 weight parts of binder and 50-90 weight parts of the solvent based on 100 weight parts of the ceramic powder.
Patent KR-20120060105-A (KR)
Title: ISG Control Method for Vehicle in Congested Area
Inventor: GWON SOON AE
IPC: F02D41/08
Filed: 2010-12-01
Abstract: PURPOSE: A method for controlling an ISG(Idle Stop and Go) function in a traffic jam is provided to improve the fuel efficiency of vehicles even if a condition about records of a maximum driving speed is not satisfied. CONSTITUTION: A method for controlling an ISG(Idle Stop and Go) function in a traffic jam comprises following steps. A gear shift moves to a neutral shift from a driving shift, and whether a brake is turned on or not is determined(S10). After the step, whether a vehicle speed is below a predetermined speed of the step(S10) or not is determined(S11). The idle stop mode is operated If the vehicle speed is below the predetermined speed of the step, and left idle stop conditions are satisfied except for a location of a gear shift, a condition about records of the maximum driving speed.
Patent KR-20120060375-A (KR)
Title: 수지 성형 몰드, 수지 성형 몰드의 진공성형용 밑판 및 이를 이용한 수지 성형 몰드의 진공성형방법
Inventor: KIM DAE GEON
IPC: B29C51/46
Filed: 2010-12-02
Abstract: 본 발명에 따른 수지 성형 몰드는, 용융된 수지를 특정의 형상으로 성형하는 성형부와 상기 성형부에 연장된 판형의 베이스를 포함하되, 상기 베이스에 요철부가 형성되는 것을 특징으로 한다. 또한, 본 발명에 따른 수지 성형 몰드의 진공성형용 밑판은, 수지 성형 몰드의 베이스에 요철부가 형성되도록 상기 밑판의 상부 면에는 요홈이 형성되는 것을 특징으로 한다. 또한, 본 발명에 따른 수지 성형 몰드의 진공성형방법은, 열가소성 수지로 된 피성형재를 클램프에 의해 클램핑하고, 밑판을 금형에 고정하며 밑판위에 목업을 안착하는 성형준비단계, 피성형재를 가열하여 연화시키는 가열단계, 및 밑판과 피성형재를 밀착하고 밑판과 피성형재 사이를 진공에 가깝게 감압하여 피성형재를 목업의 형상으로 성형하는 진공성형단계를 포함하되, 상기 밑판의 상면에 요홈을 가공하는 밑판가공단계를 상기 성형준비단계에 선행하는 것을 특징으로 한다
Patent KR-20120062057-A (KR)
Title: Sensuous pedal for vehicle
Inventor: LEE KWANG HYUCK
IPC: B60K23/02
Filed: 2010-12-06
Abstract: PURPOSE: An emotional pedal for a vehicle is provided to reduce vehicle accidents due to miss manipulation of a pedal. CONSTITUTION: An emotional pedal for a vehicle comprises a pedal arm(10), a pedal plate(20), and a pedal pad(30). The pedal arm is installed to be rotated. The pedal plate is integrally formed on the end portion of the pedal arm. The pedal pad is coupled to the pedal plate and contacted with the foot of a driver. An air chamber(31) is formed in the pedal pad. The air chamber is connected to the outside through a plurality of air holes(32). A sensible pack filled with silicon or gel is installed in the air chamber additionally.
Patent KR-20120064143-A (KR)
Title: Dental stopper device for drilling
Inventor: LEE YO SEOB
IPC: A61C8/00
Filed: 2010-12-09
Abstract: PURPOSE: A dental stopper device for generating hole in alveolar bone for transplanting implant is provided to attach and detach a stopper to a drill. CONSTITUTION: A dental stopper device for generating hole comprises an adapter(12), a drill blade-restricting unit(13). In the adapter, a through hole, which is insert-fixed in a drill body, is formed. The dill blade-restricting unit of a plurality of drill blades having various lengths is attached and detached to the adapter, and restricts the projected lengths to various lengths. In the through hole of the adapter, O-ring providing frictional force, inserted into the drum body is installed.