baber/WOPTO huggingface dataset:
Patent KR-19990064191-A (KR)
Title: 인쇄회로 안테나 대량생산 방법
IPC: H01Q9/30
Filed: 1996-10-16
Abstract: 제1면 및 제2면을 갖는 유전체 기판을 공급하는 단계와, 해당 기판 일부분을 삭제함으로써 희망크기의 상호연결된 절편열을 형성하는 단계와, 각 기판 절편의 제1면상에 주방사소자를 조성하는 단계와, 각각의 기판 절편을 유전체 보호물질로 도포처리하는 단계와, 상기 유전체 기판으로부터 각 기판 절편을 분리하여 다수의 별개 인쇄회로 안테나를 형성하는 단계를 포함하는 인쇄회로 안테나 대량생산 방법을 공개한다. 상기 각 단계들은 각 기판 절편들에 대해 실질적으로 동시 실시함이 바람직하다. 본 발명에 따른 방법은 또한, 각 기판 절편의 일단을 각피하는 단계와, 각각의 기판 절편에 전기적 커넥터를 부착하는 단계와, 분리단계에 앞서 각 기판 절편에 대해 도포처리하는 단계를 또한 포함할 수도 있다. 제1면 또는 제2면상에 부대방사소자를 조성하든가, 또는 그 대신 제2면상에 반응 또는 무급전소자를 조성함으로써 해당 인쇄회로 안테나가 다중대역에서 작동할 수 있게 된다.
Patent KR-19990082329-A (KR)
Title: 주행·주차 겸용의 브레이크 시스템
IPC: B60T8/48
Filed: 1997-02-10
Abstract: 본 발명은 특히 자동차용 주행·주차 겸용의 브레이크 시스템에 관한 것으로, 상기 시스템은 기계적인 로킹 장치(46, 47)를 구비하며 유압 클램프 가능한 주행·주차 겸용의 브레이크(30)를 구비한다.  기계적인 로킹 장치(46, 47)는 전기적으로 작동 가능하여, 유압식으로 클램프된 주행·주차 겸용의 브레이크(30)의 주차 기능을 매우 간단하게 만족시킨다.
Patent KR-19990087509-A (KR)
Title: 경질 표면 세정용의 안정한 실란 수용액
IPC: C11D1/66
Filed: 1997-02-26
Abstract: 본 발명은 알킬사카라이드 및 알케닐-사카라이드중에서 선택된 사카라이드, 및 하나 이상의 가수분해성 그룹을 갖는 당해의 오가노실란을 포함하는 경질 표면 세정용 세제를 위한 안정한 수용액에 관한 것이다.
Patent KR-20000010970-A (KR)
Title: Exhaust valve spindle of internal combustion engine or piston-shaped driving wall member 2
Inventor: HOEG HARO ANDRIAS
IPC: F02F3/12
Filed: 1997-05-13
Abstract: PURPOSE: A piston or an exhaust valve spindle made of high temperature corrosion-resisting material which has long effective life is provided. CONSTITUTION: The valve spindle(1) for exhaust valve of a cross head engine includes a shaft(3) and a valve disk(2). A valve sheet(4) located on the upper surface of a valve disk is produced with a high temperature corrosion-resisting alloy having high hardness for preventing forming of a recessed groove for forming the seal face of the sheet. The lower surface of the valve disk has the layer consisted of high temperature corrosion-resisting material(5) for preventing the combustion of the material from the lower face(6) of the disk, has high softness and high endurance to the high temperature corrosion.
Patent KR-20000050479-A (KR)
Inventor: YUN JONG MIL
IPC: H01L21/328
Filed: 1999-01-11
Abstract: PURPOSE: A method for manufacturing a bipolar transistor is provided to minimize the resistance of an emitter region and junction capacitor between the emitter region and a base region, by forming an emitter region having a shallow depth. CONSTITUTION: A method for manufacturing a bipolar transistor comprises the steps of: selectively injecting impurity ions into a predetermined region of a semiconductor substrate; forming an undoped polysilicon layer pattern in contact with a predetermined region of the base impurity region, and forming an undoped amorphous silicon layer pattern containing different conductivity from the base impurity region, on the undoped polysilicon layer pattern; and forming a diffused emitter region on the surface of the base region after impurities inside the doped amorphous silicon layer pattern penetrates the undoped polysilicon layer pattern.
Patent KR-19990067971-A (KR)
Title: 에스테르 합성
IPC: C07C69/02
Filed: 1999-01-19
Abstract: 본 발명은 기상으로 저급 올레핀 및 포화 저급 지방족 모노카르복실산을 헤테로다중산 촉매와 첨가반응과 함께 접촉시킴으로써 저급 지방족 에스테르를 제조하는 방법으로서, 헤테로다중산 촉매와 접촉하기 이전에, 올레핀 반응물 및 산 및 임의의 재순환된 공급물이 실질적으로 알데히드 불순물이 없는 상태인 것을 특징으로 하는 방법에 관한 것이다.     아세트알데히드는 촉매 독이며, 공급물로부터 이것을 제거하는 것은 헤테로다중산 촉매의 활성 및 수명을 연장시킨다.
Patent KR-20000051869-A (KR)
Inventor: KIM KWAN
IPC: G11C7/06
Filed: 1999-01-27
Abstract: PURPOSE: An open bit line DRAM cell array is provided to damp a difference mode noise generated between a bit line and a bit line bar by using a dummy cell. CONSTITUTION: A bit line and a bit line bar crossing word lines are disposed in a manner of having a sense amplifier(10) therebetween. A first and a second dummy cells(DC1,DC2) are connected with predetermined positions of the bit line, the bit line bar and the word lines connected with a first through a sixth cells(CE1-CE6).
Patent KR-19990072661-A (KR)
Title: 지학적변위검출기및이를사용한감시장치
IPC: G01F23/24
Filed: 1999-02-12
Abstract: 관측 범위가 되는 지반 및 또는 적설부에 적당한 거리를 두고 복수의 검출기가 매설된다. 당해 복수의 검출기의 각각은, 지반 및 또는 적설부의 변위에 의해 외력이 가해지면 그 크기 및 방향과 검출부 자체의 경사로부터 충격적 가속도를 검출하는 자이로 센서와, 그 검출 데이터를 전송하는 송신부를 구비하고 있다. 기지국에서는 이들 복수의 검출기로부터 전송되는 검출 데이터를 수집하고, 각 측정 포인트마다의 검출 데이터를 리얼 타임으로 처리하여 지반 및 또는 적설부의 이동량을 구하고, 이 이동량을 기초로 지반 및 또는 적설부의 상태를 판단한다.
Patent KR-19990077682-A (KR)
Title: 콤바인
Filed: 1999-03-08
Abstract: 본 발명은, 탈곡피드체인 등의 탈곡반송장치를 구비한 콤바인에 관한 것이다. 
     벼를 베어내는 전처리부에, 베어낸 벼를 차속에 연동시킨 속도로 반송하는 전처리 반송장치를 설치하는 한편, 탈곡실을 구비하는 탈곡부에, 전처리 반송장치로부터 연이어져 온 벼를 탈곡실을 따라 반송시키는 탈곡반송장치가 설치된 콤바인에 있어서, 상기 탈곡반송장치의 반송속도를 차속에 연동시킴과 동시에, 저속주행시의 탈곡반송속도가 전처리 속도보다 빠르고, 또 고속주행시의 탈곡반송속도가 전처리 반송속도와 거의 같은 속도로 설정된 것을 특징으로 한다.
Patent KR-20000060168-A (KR)
Inventor: LEE CHANG WON
IPC: F02B67/06
Filed: 1999-03-12
Abstract: PURPOSE: An apparatus and a method are provided to improve fuel efficiency and power output of a motor vehicle while allowing a compressor pulley and a damper pulley of an engine to have different diameter. CONSTITUTION: An apparatus comprises a first damper pulley(32) of an engine(30), a first compressor pulley(36) connected to the first damper pulley through a belt, and a first magnetic clutch(40) installed between the first compressor pulley and a compressor(38) in such a manner as to operate by a switched on operation of an air conditioner switch(48), wherein the apparatus further comprises a second damper pulley(22) having an increased diameter and which is installed in a portion of the first damper pulley of the engine, a second compressor pulley(24) having a small diameter and which is installed in a portion of the first compressor pulley so as to be connected to the second damper pulley through a belt(34), a second magnetic clutch(26) installed between the second compressor pulley and the first compressor pulley so as to control the operation of the compressor, and an electronic control unit(28) electrically connected to the first and second magnetic clutches.
Patent KR-19990046525-A (KR)
Title: 건축물계단의미끄럼방지부재및그제조방법
IPC: E04F11/16
Filed: 1999-03-25
Abstract: 본 발명은 건축물의 계단등에 미끄럼을 방지하기 위해 계단의 모서리에 부착되는 미끄럼 방지부재에 관한 것으로서, 특히 고강도, 고연신율, 고인성 및 저중량을 갖는 알루미늄 합금재질의 미끄럼 방지부재에 관한 것이다. 
     본 발명의 미끄럼 방지부재는 Si: 0.77 - 1.08중량%, Fe: 0.01 - 0.55중량%, Cu: 0.4 - 0.7중량%, Mn: 0.3 - 1.1중량%, Mg: 0.4 - 0.75중량%, Cr: 0.10 - 0.25중량%, Zr: 0.01 - 0.15중량%, Zn: 0.25중량% 이하 및 잔부로 알루미늄을 포함하는 고강도, 고연신율, 고인성 및 저중량의 알루미늄합금으로 이루어지는 것을 특징으로 한다. 
     본 발명의 미끄럼 방지부재는 연신율과 인성이 우수하여 외부의 충격에 의한 깨짐 현상이 현저히 감소된다. 
     또한, 본 발명의 미끄럼 방지부재는 기존재료에 비해 중량이 감소되어 운반시 또는 시공시 작업능률이 향상되었고, 강도가 커서 비틀림등의 변형에 잘 견딜 뿐만 아니라 초기에 산화피막이 빠르게 성장하기 때문에 변색이 될 가능성이 거의없으며, 용도에 따라 표면을 경화시키는 피막처리가 가능하다.
Patent KR-20000065795-A (KR)
Inventor: CHOI SEONG BONG
IPC: D06F33/02
Filed: 1999-04-09
Abstract: PURPOSE: A method for controlling a forced drainage type washing machine is provided to perform a transparent washing process and the inverse rotation washing by using a clutch motor. CONSTITUTION: A method for controlling a forced drainage type washing machine comprises the steps of an agitating and washing mode, a transparent washing mode, and a dehydration mode. The agitating and washing mode performs a washing process and a rinsing process by rotating a washing wing to a left and a right direction. The transparent washing mode performs the washing process and the rinsing process by rotating the washing wing and a washing tub. The dehydration mode performs a dehydration process by operating a drainage pump.
Patent KR-20000066506-A (KR)
Inventor: JEONG MYOUNG SOO
IPC: G06F17/30
Filed: 1999-04-17
Abstract: PURPOSE: A method for searching and presenting products using a sensitive vocabulary is provided to display the lowest priced product on the computer screen and to make the product selection for the consumer more convenient by supplying a new product presentation method that includes a sensitive vocabulary DB. CONSTITUTION: A client's sex, age, and the image of the desired product are inputted in the initial input stage. The inputted information is used as data and the information that will be stored in the correlation DB is arranged in the input information arrangement stage. The product presentation information, which is based on the extracted data of the correlation DB, is presented through the deduction logic in the correlation information analyzation stage. In the production presentation stage, the product images that have been extracted from the product image DB are displayed by the product presentation information. The product's images are stored as graphic data form in the product image DB.
Patent KR-19990088019-A (KR)
Title: 마그네트론원리에근거한스퍼터링캐소드
IPC: H01J37/34
Filed: 1999-05-03
Abstract: 마그네트론 원리에 근거한 스퍼터링 캐소드에 있어서, 스퍼터링될 재료의 타깃이 최소한 하나의 구성요소를 포함하고, 타깃의 뒤에 위치된 자기 시스템이 아치형 자력선의 최소한 하나의 자기 폐쇄 터널을 형성하는 상이한 분극작용의 소스를 포함하고 있으며, 여기에서 타깃으로부터 멀리 면하고있는 소스의 극들이 낮은 잔자성 재료로 만들어진 자기 요크를 통하여 서로에 연결되어 있고, 자기장의 소스를 형성하는 몸체는 직각 프리즘, 바람직하게는 직각 평행 육면체이고, 몸체의 베이스 가장자리는 타깃평면에 대해 평행하게 되어 있고, 소스의 자력선은 몸체의 베이스면에 대하여 경사진 각도로 흐르는 상태에 있다.
Patent KR-20000075274-A (KR)
Inventor: KIM JANG HUN
IPC: H01L21/66
Filed: 1999-05-31
Abstract: PURPOSE: A method for measuring a focus drift of an exposure apparatus is provided to reduce the time needed to measure the focus drift, by forming an overlay key for the focus drift in a scribe line of a semiconductor substrate having a real pattern, and by automatically measuring the focus drift in a real time through an overlay degree measurement using an overlay measuring system. CONSTITUTION: An overlay key for measuring a focus drift is formed in a scribe line of a chip. An overlay degree of the overlay key for measuring the focus drift is measured by an overlay measuring system. The focus drift is measured based upon the measured overlay degree. The measured focus drift degree is compared with a drift scope in a specification to determine whether to perform a process further.
Patent KR-20000062098-A (KR)
Title: 연속 탄화 장치
IPC: C10B53/00
Filed: 1999-06-02
Abstract: (과제) 유기성 폐기물, 예를 들면 비지, 식품 찌꺼기 등을 간접 가열로 연속하여 건조, 탄화를 행하며, 열효율의 향상, 설비의 간소화, 장치의 소형화, 작업에 드는 노력의 절감 등의 효과를 가지는 것을 목적으로 하는 연속 탄화 장치. 
     (해결 수단) 밀폐 투입 장치로부터 투입되는 유기성 폐기물은, 내통체(3)와 외통체(2) 사이의 환형상 공간내에 외통체 투입구(10)로부터 투입되어 이동하면서 내통체(3) 내부로부터의 열전달에 의해 간접 가열되면서 이동하며, 외통체 배출구(11)로부터 통형상체(1)와 외통체(2) 사이의 환형상 공간내로 배출되며, 배출구(6) 방향으로 가열실(4)로부터의 열전달에 의해 간접 가열되면서 건조, 탄화가 종료하여 배출구(6)로부터 배출된다.
Patent KR-20010001444-A (KR)
Inventor: KIM JONG TAE
IPC: H04N3/18
Filed: 1999-06-04
Abstract: PURPOSE: A power supply device of horizontal deflection circuit is provided to shield the power supply to a horizontal differential circuit if the missing of off time pulse due to external causes is occurred. CONSTITUTION: A power supply device of horizontal deflection circuit comprises a differential circuit(20), a comparison signal output part(50), a horizontal size controller(30), a comparator, a drive voltage output part(70), an overvoltage stopper(40) and a differential circuit driver(80). The differential circuit(20) differentiates pulse signals output a horizontal drive IC. The comparison signal output part(50) applies or shields drive voltage in accordance with the output of the differential circuit. The comparator compares the combined output of signals from the controller(30) and the stopper(40) and the output of the comparison signal output part(50). The overvoltage stopper(40) outputs a signal for dropping overvoltage of the output part(70) by a predetermined value.
Patent KR-20000047417-A (KR)
Inventor: TOKUMASU NOBORU
IPC: H01L21/3105
Filed: 1999-06-19
Abstract: PURPOSE: A method for forming a planarized insulating layer having a low hygroscopic property and an improved membranous property is provided. CONSTITUTION: In a formation process of a planarized insulating layer for covering interconnection layers(43a,43b) that are selectively formed on a lower insulating layer(42) over a semiconductor substrate(41), while supplying a mixed reaction gas which includes both phosphorus-containing compound, which has III valence phosphorus and at least one bond of phosphorus to which oxygen is bonded, and silicon-containing compound, a silicon-containing insulating layer(45a) including P2O3 is formed over both the interconnection layers(43a,43b) and the lower insulating layer(42). The upper insulating layer(45a) is then heated, fluidized, and planarized. Next, the planarized insulating layer(45a) is again heated to sublimate P2O3 therein, and thereby solidified.
Patent KR-20010003823-A (KR)
Inventor: KOO SEUNG YUB
IPC: G11B20/04
Filed: 1999-06-25
Abstract: PURPOSE: A digital sound player of headphone type is provided so that users listen to digital sound easily, and don't feel pressure on head, and don't have limitation of action, and uses it as headphone when using common cassette player. A digital sound player is installed in unit case of a phone, which is worn on auricle, without a special player main body. CONSTITUTION: The digital sound player of headphone type includes a head band(11), a first unit case(12), a second unit case(13), a player device, a memory device(22), plural speakers and a power supplier. The head band(11) has self elastic power and is shaped as. The first unit case(12) includes a memory attaching/detaching part(12b), many key buttons(12c,12d) and a download port(12e), and is installed at one end of the head band(11). The memory attaching/detaching part(12b) has prescribed size and is formed concavely. Many key buttons(12c,12d) drives the player. The download port(12e) is connected to PC interface in order to download digital data from PC. The second unit case(13) has many key buttons(13b,13c,13d) and is installed at the other end of the head band(11). The player device includes a D/A converter, a decoder and a controlling part, and is installed in the first unit case(12). The D/A converter converts digital signal to analog signal and outputs it. The decoder is connected to the D/A converter and transmits decoded digital signal to the D/A converter. The controlling part is connected to the decoder, download port(12e), memory attaching/detaching part(12b) and many key buttons(12c,12d), and controls action of the player. The memory device(22) is assembled at the memory attaching/detaching part(12b), and memorizes downloaded digital data, and supplies memorized data to the player device. Plural speakers are connected to the D/A converter, and are installed in the first and the second units(12,13), and outputs analog signal transmitted from the D/A converter as sound. The power supplying part has ON/OFF switch, and is connected to each part of the player device and plural speakers to supply power to them, and is installed in the second unit case(13).
Patent KR-20010004784-A (KR)
Title: Structure of burner for gas range
Inventor: YE JIN HAE
IPC: F24C15/10
Filed: 1999-06-29
Abstract: PURPOSE: A burner unit with an improved structure is provided to minimize an explosive sound caused by a back-fire during extinguishment. CONSTITUTION: A burner unit comprises a burner head(22) installed through an upper surface(20) of a gas ranger; a cleaning ring(30) for connecting the upper surface of the gas range and the upper surface of the burner head, and which has a flame hole forming tooth arranged along the periphery of the innermost part of the cleaning ring, in a portion of the cleaning ring directing from the innermost periphery of the cleaning ring toward the outer periphery of a burner cap(24); and the burner cap having a flame hole forming tooth(26) arranged at the outermost periphery of the bottom surface of the burner cap, with a predetermined spacing(t) from the flame hole forming tooth of the cleaning ring. A flame hole(40) is formed by coupling the flame hole forming teeth of the burner cap and the cleaning ring. The spacing between the flame hold forming teeth prevents an explosive sound during extinguishment.
Patent KR-20000011408-A (KR)
Inventor: HARA HITOSHI
IPC: B29C45/77
Filed: 1999-07-01
Abstract: PURPOSE: A distributed pressure control method of an injection molder is provided to conduct a back pressure control like a real by a simple setting work. CONSTITUTION: The back pressure control method of the injecting molder which has a heating cylinder(21) for making by heating resin powder to melting resin, a screw(20) for supplying the melting resin to the forward direction of the heating cylinder and an injecting actuator connected to the screw, has the steps of: selecting a back pressure control level; deciding a back pressure pattern that has a variable back pressure command value sequentially changing according to the retreat position of the screw at the maximum back pressure command value on the basis of the back pressure control level; and controlling according to the back pressure pattern.
Patent KR-20010009800-A (KR)
Inventor: LEE BYEONG MO
IPC: B29C65/72
Filed: 1999-07-14
Abstract: PURPOSE: An adhering method of a breathable film is provided to have excellent air permeability and moisture permeability by attaching a polyolefin breathable film and a nonwoven fabric with a simple process. CONSTITUTION: In attaching a nonnwoven fabric or cloth only to one face of a breathable film, the nonwoven fabric or cloth is supplied between compressing and cooling rollers(1,2) from a supply roller(5). A composition of the breathable film is supplied from a discharger(3). In attaching the nonwoven fabric or cloth to both faces of the film, the nonwoven fabric and/or cloth is supplied respectively between the compressing and cooling rollers from the supply rollers(5,6). The composition of the film is supplied between the nonwoven fabric and cloth from the discharger.
Patent KR-20010011918-A (KR)
Inventor: CHO GYEONG IK
IPC: H01J1/30
Filed: 1999-07-31
Abstract: PURPOSE: An FED(field emission device) and a producing method thereof are provided to improve stability and uniformity of electron emitting characteristic while repressing damage on device caused by over current. CONSTITUTION: A thin film for a cathode electrode(42) and a first silicon film(45) having relatively low combining density are formed on an insulating substrate(41). A second silicon film(48) having relatively high combing density is formed on the first silicon film. A mask of a disk shape is formed. Second/first silicon films are isotropic/anisotropic etched to form in cut cone/cylinder shapes. The silicon films are isotropic etched to form the second silicon film as a cone shaped tip. A gate insulating film(46) and a gate electrode(47) are formed around the silicon films.
Patent KR-20000016999-A (KR)
Inventor: KANAZ TSUTOMU
IPC: G02F1/13357
Filed: 1999-08-02
Abstract: PURPOSE: Structure of back light of liquid crystal display is provided to decrease the size of screen frame and the mass of liquid crystal display. CONSTITUTION: In a back light corresponding the display part of liquid crystal display, cold cathode tubes arranged along the peripheral part of display are surrounded by the light guiding plate and reflector made of transparent material and the electro luminescent lamp is arranged between the display part of liquid crystal display and the reflector. he surface of end part of light guiding plate is facing the cold cathode tube and the reflector reflects the light radiated by the cold cathode tube. Favorably, the electro luminescent tube arranged to be overlapped with the whole peripheral part of the display.
Patent KR-20010017459-A (KR)
Inventor: BAEK SANG CHEON
IPC: H01L21/68
Filed: 1999-08-11
Abstract: PURPOSE: A wafer carrier for manufacturing a semiconductor device is provided to prevent damage to a wafer and to increase productivity, by preventing the wafer carrier from being warped, and by strengthening the wafer carrier by a strengthening pipe. CONSTITUTION: A strengthening pipe(22) is buried in inner elements such as a side plate(11) or horizontal stick which constitute a carrier. The inner elements are made of quartz. The strengthening pipe is made of silicon carbide which has thermal endurance higher than quartz, having a hole(23) in a lengthy direction.
Patent KR-20010018792-A (KR)
Inventor: MUN GIL HO
IPC: H01M8/14
Filed: 1999-08-23
Abstract: PURPOSE: An electrolyte impregnating method for molten carbonate fuel cell is provided, in which electrolyte plate is eliminated, to thereby prevent contact resistance from being increased and protect matrix from being broken. CONSTITUTION: A method comprises the first step of preparing an anode(1) and a cathode(102) through a molding and sintering process; the second step of preparing a matrix(108) by mixing the main ingredient with an electrolyte; the third step of manufacturing a unit cell by laminating the anode, the cathode and the matrix. The first step of preparing the cathode is performed in such a manner that an electrolyte is uniformly deposited onto the sintered sheet and heated at a predetermined temperature so as to be impregnated into air holes. The second step of preparing the matrix includes the steps of mixing the electrolyte and binding agent and spattering the mixture; making slurry by mixing the spattered mixture with aluminate; and molding the slurry.
Patent KR-20010019482-A (KR)
Inventor: LEE GYEONG JUN
IPC: H04N5/208
Filed: 1999-08-27
Abstract: PURPOSE: An image contrast control circuit of a monitor is provided to improve the contrast of images by controlling gain and delay time by detecting the luminance of R,G,B signals. CONSTITUTION: A mixer(250) mixes R,G,B signals at a predetermined ratio to generate a luminance signal(Y). A gain and delay control unit(260) amplifies the output signal(Y) from the mixer(250) by a predetermined gain and differentiates it for thereby extracting a treble element. An adder(270) adds an output signal of the gain and delay control unit(260) and an output signal of a grid voltage control unit(240) to thus supply a modulating signal to a grid terminal(G1) of a CDT(230). A microcomputer(290) controls a control gain and a differential time constant of the gain and delay control unit(260) according to a user's selection in a key input unit(280).
Patent KR-19990083903-A (KR)
Title: 건축공사용 굴착기의 헤드
IPC: E21B10/00
Filed: 1999-08-25
Abstract: 본 발명은 건축공사용 굴착기의 헤드에 관한 것으로, 종래에 비해 굴착구멍이 무너지는 현상과 센터링의 불량현상 등이 소멸되어 생산성과 작업성 및 경제성 등이 우수한 특징을 가진다. 
     이를 위하여 본 발명은, 구동축관 50과, 상기 구동축관과 조립되는 플랜지 20에 연결된 관체 18과, 상기 관체와 일체로 조립된 케이싱 10과, 상기 플랜지의 하방에 형성되며 내경쪽에는 다수의 구멍 23들이 형성된 고압공기진입실 22와, 상기 케이싱의 저면에 형성된 하나의 구멍과 상기 플랜지에 형성된 고압공기진입실 22의 내경쪽을 연결하는 흡입관과, 상기 케이싱의 저면에 수평으로 구성되는 다수의 비트 70들로 조합된 건축공사용 굴착기의 헤드에 있어서, 
     상기 케이싱의 내부에 적층된 채 볼트 15와 너트 16에 의해 고정되어 헤드 전체의 중량을 증가시키기 위한 무게추 14들과; 상기 무게추들과 케이싱의 측벽 사이에 공간부를 형성시키고 이 공간부를 통해서 물이 비트 쪽으로 공급되도록 하기 위한 장방형의 구멍 11들과; 굴착시 헤드의 센터링이 어긋나지 않도록 상기 케이싱의 저면에 고정되는 비트 70들은 "W"자 형태의 굴곡을 이루도록 높낮이가 형성된 것을 포함하여서 구성됨을 특징으로 하는 건축공사용 굴착기의 헤드를 제공한다.
Patent KR-20010019896-A (KR)
Inventor: CHO WON BOK
IPC: H01H13/14
Filed: 1999-08-31
Abstract: PURPOSE: A push button switch is provided to improve the operation sense and to reduce the push button switch size and the cost by changing the install position and by reducing the components. CONSTITUTION: The push button switch comprises a switch body(60), a push operational unit(50), and a spring(59) installed within the switch body for providing the elasticity to the push operational member. The switch body has a plurality of terminal plates(61) connected to an external switch circuit, and a position selection cam(65) placed on the center of the terminal plate for guiding the on/off operation position. The push operational unit has a directional movable contact terminal(51) connected to the terminal plate for turning on or off the switch, and a lock pin(55) for determining the switching on/off operation position by the position selection cam.