baber/WOPTO huggingface dataset:
Patent KR-20000009913-A (KR)
Title: Steel plate for heat shrink band and its method
Inventor: SAITO ICHIRO
IPC: C21D8/02
Filed: 1998-07-29
Abstract: PURPOSE: A method for fabricating a heat shrink band is provided which not only secures tension for correcting deformation of a panel side caused by air pressure but also has sufficient self-shielding characteristic. CONSTITUTION: A method for fabricating a heat shrink band comprises the steps of:hot-rolling and cold-rolling steel containing less than 0.05 wt.% of carbon, more than 2.0 wt.% and less than 4.0 wt.% of silicon, more than 0.1 wt.% and less than 1.0 wt.% of manganese, less than 0.2 wt.% of phosphor, less than 0.020 wt.% of sulfur and less than 0.004 wt.% of solid aluminum or more than 0.1 wt.% and less than 1.0 wt.% of solid aluminum; annealing the steel at 700 to 900°C; and subjecting the steel to light cold rolling at a cold compression rate of 3-15%.
Patent KR-20000013618-A (KR)
Title: Partition detonator
Inventor: LEE HYO NAM
IPC: F41A1/00
Filed: 1998-08-11
Abstract: PURPOSE: A partition detonator is provided to be able to detonate a gun powder which is mutually divided into a metal partition by using a characteristic that the gunpowder detonates or blasts even by a shock. CONSTITUTION: The partition detonator is composed of:a body(1) formed with a spiral on an outer face and a space unit on both sides of a gap between the partitions; a donor source detonated by the electric stimulus of the outside, sealed in the space unit on one side of the body; an acceptor gunpowder and a main detonation powder(5) detonated by receiving a shock wave caused by the detonation of the donor source through the partition, sealed in a space on other side of the body; a separating disk(6) for blocking a mutual chemical reaction, inserted between the acceptor gunpowder and the main detonation powder.
Patent KR-20000014327-A (KR)
Title: Staff fixing device for motor vehicle
Inventor: KIM PAN SOO
IPC: B60R1/12
Filed: 1998-08-20
Abstract: PURPOSE: A flagpole fixing device is provided to fix a flagpole to be able to be separated from and attached on an outside mirror of a motor vehicle without a damage on the outer panel of a motor vehicle. CONSTITUTION: The flagpole fixing device is installed by:a fixing body(10) having a combining hole(10a) to penetrate and combine a combining member(20); a dual-surface tape(11) placed on the inner side of the fixing body at the same width and to install the fixing body on an outside mirror(3); and a flagpole installation unit(12) having more than one of fixing holes(12a) to penetrate and fix a flagpole(2) on the outer side of one end of the fixing body and having a recessed part(13) to fix the penetrated flagpole on the lower part.
Patent KR-20000014580-A (KR)
Title: New photoresist polymer and photoresist compound using the polymer
Inventor: KONG KUN KYU
IPC: G03F7/039
Filed: 1998-08-21
Abstract: PURPOSE: A new photoresist polymer and photoresist compound using the polymer is provided, which suits an optical lithography progress using a KrF(249nm) and a ArF(193nm) optical source when manufacturing a micro circuit of a high integrated semiconductor device. CONSTITUTION: The new photoresist polymer comprises: a bicycloalkene composed by a chemical formula 2; and a maleic anhydride by a chemical formula 3 or a maleimide derivative by a chemical formula 4, wherein the bicycloalkene is selected from a group including a 2-hydroxyethyl 5-norbone-2-carboxylrate, a t-butyl5-norbune-2-carboxylrate, and a 5-norbone-2-carboxylsan, and R1 of the chemical formula 4 is selected from a group including a methyl, an ethyl, a butyl and a propyl. Thereby, it is possible to use 2.38 percent a TMAH aqueous solution as a developer.
Patent KR-19990029352-A (KR)
Title: 플렉시블 플라이휠
IPC: F16F15/131
Filed: 1998-08-27
Abstract: 본 발명의 플렉시블 플라이휠은  탄성변형가능한 플렉시블 플레이트와, 상기 플렉시블 플레이트보다 작은 치수로 접시형상을 이루는 탄성변형 가능한 컴프레션  플레이트와, 소정의 관성능률을 갖는 링형상의 플라이휠 매스를 구비하여 이루어지고, 상기 플렉시블 플레이트를 그 외연부에서 상기 플라이휠 매스에 고착함과 동시에, 상기 컴프레션 플레이트를, 탄성변형시킨 상태에서 플라이휠 매스에 맞닿도록 상기 플렉시블 플레이트와 상기 플라이휠 매스에 의하여 가압 끼움 지지시키고 있다.
Patent KR-19990007521-A (KR)
Title: 메탈 돔 스위치 패드제조기의 돔 자동 로딩장치
Filed: 1998-09-09
Abstract: 본 발명은 핸드폰과 같은 전자통신기기의 키 패드로 설치되는 복수개의 돔(Dome)을 대지상의 정확한 지점에 자동으로 로딩할 수 있도록 하는 메탈 돔 스위치 패드제조기의 돔 자동 로딩장치에 관한 것으로, 엘리베이터부에 위치된 복수개의 돔들을 동시에 흡착하여 대지의 정확한 지점에 로딩시킬 수 있도록 하여 양질의 제품을 대량 생산할 수 있도록 있도록 한 것이다. 
     이를 위해, 돔(2)의 배열과 일치되게 장착된 복수개의 슬리브(1)에서 돔을 1스탭씩 상승시키는 엘리베이터부(8)와, 상기 엘리베이터부에 장착된 슬리브내의 돔이 1개의 두께만큼씩 상승되도록 엘리베이터부를 구동하는 구동부(4)와, 상기 엘리베이터부의 상측에 설치되어 슬리브에 담겨진 최상측의 돔을 동시에 흡착하여 슬리브로부터 분리하는 흡착부(5)와, 상기 흡착부에 의해 흡착된 복수개의 돔을 대지(6)의 상측으로 이송시켜 로딩하는 이송수단으로 구성되어 있어 대지의 정확한 위치에 복수개의 돔을 동시에 로딩할 수 있게 되므로 생산성을 극대화함은 물론 불량률을 현저히 줄일 수 있게 된다.
Patent KR-20000019561-A (KR)
Title: Rice weevil repellent using charcoal
Inventor: KOO WON SANG
IPC: A01N65/00
Filed: 1998-09-12
Abstract: PURPOSE: A rice weevil repellent is provided to enable long-term preservation of rice while maintaining freshness of the rice and prevention of weevil or fungi in the rice. CONSTITUTION: The rice weevil repellent comprises about 50 to 60 wt.% of charcoal powder having a particle size of about 3 to 5 millimeters, and about 20 to 30 wt.% of dry garlic powder having a particle size of about 2 to 8 millimeters.
Patent KR-20000020065-A (KR)
Title: Dust collector for air sampling of clean room
Inventor: OH YOON CHEOL
IPC: H01L21/02
Filed: 1998-09-17
Abstract: PURPOSE: A dust collector for air sampling of clean room is provided to realize the reliable and reproductive analysis by simultaneously sampling under same conditions. CONSTITUTION: A dust collector for air sampling of clean room comprises containers(30a,30b,30c) filled with solution and having exhaust pipes(40,42,44), gauges(48,50,52) connected to the exhaust pipes, pumps(54) for forcibly exhausting the air within the container, and controllers(56) controlling the operation of the pump. The pumps are mounted in the positions which the exhaust pipes are connected to each other. The controller has a timer for operating the pump for prescribed time to perform sampling.
Patent KR-19990044882-A (KR)
Title: 컴퓨터를 이용한 레코드/플레이백 장치 제어 방법 및 메카니즘
IPC: H04N5/926
Filed: 1998-10-15
Abstract: 비디오 카세트 레코더 및 카세트 레코더와 같은 원격 제어형 장치를 제어하기 위해, 적외선 방사장치(emitter)에 접속되어 그것을 제어하는 데이터 처리 시스템이 이용될 수 있으며, 이 데이터 처리 시스템은 이와 같은 장치에 의한 레코딩을 프로그램하도록 허용된다. 데이터 처리 시스템은 예를 들어, 가시선(line-of-sight)의 또는 반사된 적외선 신호 송신에 따라, 원격 제어형 레코드/플레이백 장치에 근접하여 위치되는 셋탑 박스가 될 수 있으며, 또는 적절하게 배치된 적외선 중계기와 관련하여 이용될 수도 있다. 데이터 처리 시스템은 또한, 데이터 스트림이 클라이언트에 의한 개입 없이 가입한 클라이언트로 전송되는 "서버 푸시" 네트워크 기술과 관련하여 사용될 수도 있다. 데이터 스트림은 사용자-정의 데이터 항목(items)에 대해 모니터된다. 이 데이터 항목이 검출되면, 데이터 처리 시스템은 검출된 데이터 항목과 관련된 방송(broadcast)을 레코드하도록 적절한 레코드/플레이백 장치를 자동적으로 제어한다.
Patent KR-20000026563-A (KR)
Title: Electronic thermostat system
Inventor: PARK JUN HYEON
IPC: H01L21/22
Filed: 1998-10-21
Abstract: PURPOSE: An electronic thermostat system is provided to supply phosphorous oxychloride to a diffusion device in the diffusion process for manufacturing a semiconductor. CONSTITUTION: An electronic thermostat system according to the present invention comprises a bar frame (35) receiving a process gas to be supplied to the device for manufacturing semiconductor, a first line for supplying a carrier gas, which allows supply of the process gas from the bar frame (35) to the device for manufacturing semiconductor, from outside to the bottle (35), an exhaust line (30) connected to the first line, a first ferrule (250) for connecting the first line to the bottle(35), a second ferrule (225) for connecting the second line to the bottle(35), a first valve (50) installed at the connecting section between the first line and the exhaust line for controlling the opening or closing of the first line and the exhaust line, check valves (45, 60) installed between the first valve (50) and the bottle(35) in the fist line, a second valve (85) installed in the second line, and a pressure gage installed between the second valve (85) and the bottle(35) in the second line.
Patent KR-20000027688-A (KR)
Title: Jamming system
Inventor: JEON KYEONG HO
IPC: H04K1/00
Filed: 1998-10-29
Abstract: PURPOSE: A jamming system is provided to transfer a signal having reverse phases of a same frequency band and reception frequency of a cellular phone. CONSTITUTION: A jamming system comprises an oscillator, a controller, an amplifier, a filter, and a directional antenna. The oscillator oscillates a plurality of reverse phase frequency so that a cellular phone and a signaling sound of a pager can not be operated in regular regions. The controller controls signal output of the oscillator and a signal delivery band. The amplifier amplifies frequency affecting the cellular phone and the pager within a regular scope, according to a control signal of the controller. The filter filters frequency so that the output signal of the amplifier can not affect other electronic apparatuses. The directional antenna decides a direction so that offset frequency passed through the filter can affect the cellular phone and the pager within a regular angle and the regular scope.
Patent KR-19990044936-A (KR)
Title: 화학 기계식 평탄화 시스템과 그 방법
IPC: H01L21/302
Filed: 1998-11-02
Abstract: 웨이퍼 폴리싱 공정 동안 사용된 폴리싱 화학물의 용량을 감소시키는 화학 기계식 평탄화 공구는 폴리싱 매질로부터 폴리싱 화학물과 입자들을 제거하기 위한 세척막대(87)와 슬러리 전달시스템의 펌프(83)를 조절하기 위한 슬러리 측정시스템(84)을 포함한다.  슬러리 전달시스템의 용량은 100 밀리리터 이하로 감소된다.  단일 웨이퍼를 폴리싱하기 위한 거의 최소 용량의 폴리싱 화학물은 웨이퍼 로트의 각 웨이퍼 폴리싱 공정 동안 분배된다.  각 웨이퍼의 폴리싱 공정 동안, 슬러리 전달시스템은 폴리싱 화학물의 안착, 응집 및 경화작용을 방지하기 위해 정화된다.  세척막대(87)는 다른 반도체 웨이퍼를 폴리싱하기 전에 소모된 폴리싱 화학물과 입자들을 제거하기 위해 폴리싱 매질의 표면을 스프레이한다.
Patent KR-20000031013-A (KR)
Title: Finger and method to accomplish the acquisitive action of initial synchoronization in the mobile communication system of code dividion multiple access.
Inventor: LEE JEONG GU
IPC: H04B7/26
Filed: 1998-11-02
Abstract: PURPOSE: A method is provided to accomplish the acquisitive action of initial synchronization and the detector when the detector accomplishes the acquisitive action of initial synchronization in the mobile communication system using code division multiple access. CONSTITUTION: The method relates to the mobile station of mobile communication system,especially the acquisitive device of initial synchronization. A plurality of fingers included to mobile station accomplish the acquisitive action of initial synchronization. The method can reduce the acquisitive time of initial synchronization in mobile station.
Patent KR-20000031090-A (KR)
Title: Apparatus for manufacturing wavelength division multiplexing/demultiplexing element based on the volume hologram
Inventor: LEE SEUNG HYUN
IPC: G03H1/00
Filed: 1998-11-03
Abstract: PURPOSE: An apparatus for manufacturing wavelength division multiplexing/demultiplexing element based on the volume hologram is provided to manufacture a high speed wavelength division multiplexing/demultiplexing element of great capacity by recording the holographic grating interference image to a volume hologram recording medium after generating the laser beam having a plurality of wavelengths by tuning the wavelength of a laser beam through a variable wavelength laser, and dividing a reference wave and an object wave. CONSTITUTION: A tunable laser(10) generates laser beams having a plurality of wave lengths, tuning the wave length of the laser beam. A beam splitter(20) makes a reference beam and an object beam. A volume hologram medium(200) stores a grating interference image by light refraction effect. A reflector group(30) adjusts the incident angle between the reference beam and the object beam. A medium moving unit(40) provides a horizontal translation strength for the incident direction of the reference and object beams. A first iris diaphragm and a second iris diaphragm(21,22) interrupt the reference and object beams respectively. A volume hologram control unit(100) manufactures wavelength division multiplexing/demultiplexing elements.
Patent KR-20000031630-A (KR)
Title: Multi optical cable duct having integral inner tube
Inventor: JEON YOUNG CHAN
IPC: H02G9/06
Filed: 1998-11-09
Abstract: PURPOSE: A multi optical cable duct having integral inner tube is provided to lengthwise connect 3 or 5 optical cable duct units by using alignment parts and couplers, thereby removing an inner tube inserting process into an outer tube. CONSTITUTION: A multi optical cable duct having integral inner tube comprises optical cable duct units(10,10'), a coupler(30), an outer tube(12), and an alignment part(20). Adhesive is applied on the surface of the optical cable duct units(10,10'). The alignment part(20) is projected from one end of the optical cable duct units(10). The duct units(10) is inserted into the coupler(30) until the outer tube(12) is engaged with a step of the coupler such that the alignment part(20) is protruded from the coupler(30). The duct unit(10') is engaged with the protruded alignment part(20).
Patent KR-20000032399-A (KR)
Title: Tube of heat exchanger
Inventor: O KWANG HEON
IPC: F28F1/40
Filed: 1998-11-14
Abstract: PURPOSE: A tube of a heat exchanger is provided to reduce the pressure loss of a working fluid by smoothly circulating the working fluid without any difficulty. CONSTITUTION: A tube(20) has an irregular port(23) and a flat port(24). A working fluid passes the irregular port and collides with a protrusion(22) to exchange heat with external air. The fluid passes the flat port and the fluid is changed into a liquid state through heat exchange with the external air to flow without any difficulty. Thus, the working fluid flows through the flat port and smoothly flows not to lose pressure. The flat port does not have protrusions so it is useful to make its sectional area smaller than one of the irregular port.
Patent KR-19990045356-A (KR)
Title: 액정 표시 장치
IPC: G02F1/139
Filed: 1998-11-17
Abstract: 박막 트랜지스터를 덮는 평탄화 절연막(18) 상에 액정 구동용의 화소 전극(19), 화소 전극(19)의 상에는 러빙 처리를 시행하지 않은 수직 배향막(31)이 형성되고, 공통 전극(23) 중에는 전극 부재부인 배향 제어창(24), 공통 전극(23) 상에는 러빙 처리를 시행하지 않은 수직 배향막(32)이 형성되어 있다.  음의 유전율 이방성을 갖는 액정은 프리 틸트을 갖지 않아 법선 방향으로 초기 배향 제어되고 전압 인가에 의해 화소 전극(19)단 및 배향 제어창(24)단에 있어서 경사 전계로 경사 방향이 제어되고 화소 분할이 행해진다.  화소간의 블랙 매트릭스가 생략되어 TFT에 대응하는 영역만 차광막(21BL)이 형성되고 광 누설 전류가 방지되는 광시야각의 액정 표시 장치를 얻는다.
Patent KR-20000033358-A (KR)
Title: Apparatus for adjusting period of optical pulse queue using time correlation
Inventor: LEE HYOK JAE
IPC: H04B10/299
Filed: 1998-11-23
Abstract: PURPOSE: An apparatus for adjusting the period of optical pulse queue using time correlation is provided to reduce the polarization dependence of input pulse queue by time correlation after mixing returned optical pulse queue and input optical pulse queue so as not to be overlapped in conjunction with time. CONSTITUTION: A clock generator(110) generates clocks. A clock amplifier(120) amplifies the clocks transferred from the clock generator(110). An optical pulse generator(130) generates the optical pulse synchronized with the amplified clock. A polarization adjustor(140) adjusts the polarization of the optical pulse transferred from the optical pulse generator(130). An input light distributor(150) distributes the optical pulse transferred with the polarization modulated by the polarization adjustor(140). A light transfer and interrupt device(160) interrupts an optical signal to be transferred to the input light distributor(150). A time-correlation device(170) correlates with the time of the optical pulse transferred from the light transfer and interrupt device(160). An optical pulse transfer processing part(180) amplifies, filters, attenuates and transfers the optical pulse transferred from the time-correlation device(170). An output light distributor(190) distributes the optical pulse transferred from the optical pulse transfer processing part(180). A polarization adjustor(200) adjusts the polarization of the optical pulse transferred from the output light distributor(190).
Patent KR-20000033602-A (KR)
Title: Two-way clutch of vehicle belt-type continuously variable transmission
Inventor: JUNG JAE CHEOL
IPC: B60K17/02
Filed: 1998-11-23
Abstract: PURPOSE: A two-way clutch of vehicle belt-type continuously variable transmission is provided to improve performance of two-way clutch in belt-type continuously variable transmission. CONSTITUTION: A two-way clutch of vehicle belt-type continuously variable transmission comprises an input gear (100) inserted a shaft (41); a retainer (120) between the input gear and the shaft; a retainable sprocket (100) to overcome elasticity of spring and to lie or elect: an output gear (90) inserted on the other of the shaft intervening a spacer (125); an output sleeve with some play to the direction of the shaft; several play projections (44) of a radiant-type projected on the output sleeve(46); a movable groove of an equal gap formed in the inner shaft hole.
Patent KR-20000039829-A (KR)
Title: Apparatus for inputting scrap iron to electric furnace
Inventor: KIM HAE WON
IPC: C21C5/46
Filed: 1998-12-16
Abstract: PURPOSE: An apparatus for inputting scrap iron to an electric furnace is provided to prevent explosion due to moisture contained in scrap iron by drying scrap iron while standing by in the upper part of an electric furnace as well as to improve working efficiency and productivity. CONSTITUTION: A scrap iron input apparatus is composed of a scrap iron chute support stand(59) having an aperture(61) whereon a scrap iron chute is settled, a pair of cylinders(55,57) combined to the lower part of the scrap iron chute support stand and facing each other, solenoid valves(53,54) for driving the cylinders, and a hydraulic lifter(56) installed between the cylinders and lifting the scrap iron chute support stand. The cylinders are lifted to input scrap iron to an electric furnace(1). The forward movement distance of the cylinder(57) is longer than the forward movement distance of the other cylinder(55). The hydraulic lifter is driven by a hydraulic pump(52). Herein, the scrap iron chute is inclined downward by facing the electric furnace.
Patent KR-20000040658-A (KR)
Title: Apparatus for controlling audio output using multi voice broadcasting
Inventor: KWON SOON WON
IPC: H04N5/60
Filed: 1998-12-18
Abstract: PURPOSE: An apparatus for controlling audio output using multi voice broadcasting is provided to control audio output when a multi voice broadcasting is recorded in order to record multi voice selectively. CONSTITUTION: An apparatus for controlling audio output using multi voice broadcasting includes a tuner(20), an IF(intermediate frequency) amplifier(30), a P/S(phase splitter) splitter(40), a microcomputer(50), a remote controller(60), a voice processing IC(110), and a switching IC(120). The tuner(20) selects specific station. The IF amplifier(30) amplifies the IF signal from the tuner(20). The P/S splitter(40) separates PIF(picture intermediate frequency) from a SIF(sound intermediate frequency). The voice processing IC(110) detects and outputs multi voice broadcasting signal including a first and a second language signals from the SIF via the P/S splitter. The switching IC(120) is operated responding to a control signal from the microcomputer, and outputs first language to a CRT(cathode ray tube) while outputting second language to a monitor output node.
Patent KR-20000041319-A (KR)
Title: Apparatus for processing color signal of image signal processing system
Inventor: LEE HO SEONG
IPC: H04N9/64
Filed: 1998-12-22
Abstract: PURPOSE: An apparatus for processing a color signal of an image signal processing system is provided to implement color signal adjusting portion and RGB conversion portion in one circuit. CONSTITUTION: An apparatus for processing a color signal of an image signal processing system includes a key input(905), a color signal adjusting coefficient calculator(904), and a color signal adjusting and RGB conversion member(902). The key input(905) generates key data according to input of the color signal adjusting key when the color signal adjusting key input from a user is present. The color signal adjusting coefficient calculator(904) replaces the input color signal and brightness signal coefficients variation for a matrix when a request to adjust the color signal from the user is present. The color signal adjusting and RGB conversion member(902) adjusts the color signal from a comb filter from the image signal processing system by using the color signal adjusting coefficients from the color signal adjusting coefficient calculator, and adds the result with the brightness signal to generate the RGB image signal.
Patent KR-20000043181-A (KR)
Title: Frequency transformer
Inventor: OH YOUNG NAM
IPC: H03K3/00
Filed: 1998-12-28
Abstract: PURPOSE: A frequency transformer is provided to obtain different frequencies according to the temperature changes by controlling the pulse period of a pulse signal generated according to the temperature changes. CONSTITUTION: A multiple pulse generator(210) generates plural pulse signals having different pulse periods under the control of an enable control signal. Plural temperature detectors(220, 221) detect different temperatures according to the enable control signal and output respective temperature detecting signals. A decoder(230) inputs the respective temperature detecting signal outputted from the plural temperature detectors(220, 221) and the enable control signal and selectively outputs plural pulse signals generated from the multiple pulse generator(210) according to the decoding result of the inputted signals.
Patent KR-20000043601-A (KR)
Title: Electrohydraulic brake system
Inventor: KIM JOO KON
IPC: B60T13/00
Filed: 1998-12-29
Abstract: PURPOSE: An electrohydraulic brake system is provided to allow an independent control for each four wheel of the automobile while arranging a separate hydraulic pressure control unit for each four wheel. CONSTITUTION: An electrohydraulic brake system comprises a master cylinder(101) for generating a hydraulic pressure corresponding to a force applied to a brake pedal(100), a potentiometer sensor((102) mounted to the master cylinder(101) and which senses a displacement of the brake pedal(100), a hydraulic pressure sensor(103) for sensing the hydraulic pressure in the master cylinder(101) according to an actuation of the brake pedal(100), motors(110, 111, 119, 120) for respectively operating gears corresponding to four wheels of the automobile according to a control signal and supplying four wheel brakes(115, 116, 123, 124) with the hydraulic pressure output from the master cylinder(101), solenoid valves(107, 108, 117, 118) for selectively supplying the gears with the hydraulic pressure output from the master cylinder(101), wheel speed sensors(129, 130, 131, 132), wheel pressure sensors(125-128) for sensing the hydraulic pressure to be supplied to the wheel brakes, and a controller(112) for controlling actuation of the motors and the solenoid valves correspondingly to the data sensed by the sensors(102, 103, 125-132).
Patent KR-20000044099-A (KR)
Title: Structure of control valve for fuel tank in vehicle
Inventor: KIM JAE HA
IPC: B60K15/035
Filed: 1998-12-30
Abstract: PURPOSE: A structure of control valve for a fuel tank in a vehicle is provided to prevent an accident by a fire of car body and air pollution without directly exhausting an evaporated gas exhausted at a generation of high pressure inside the fuel tank into the air. CONSTITUTION: In supplying the fuel to the fuel tank, the fuel is flowed through a flowing slot(25a) of a combining cover(25). A floater(23) is raised upward by a height of oil and an upper part of the floater(23) is contacted under a supporting rod(50). And the supporting rod(50) is lifted upward. When the supporting rod(50) is lifted, a relief valve(40) is lifted by the elasticity of a first spring(60) during an upper part of the supporting rod(50) pushes a ball(41b) leftward and rightward. When the fuel of regular amount is filled in the fuel tank, an additional lubrication of fuel is prevented by maintaining a sealing during a second sealing member(42b) is closed in a vapor slot(31a) of a vapor hole(31) in a cover(30).