baber/WOPTO huggingface dataset:
Patent KR-20090014732-A (KR)
Title: Plasma etching apparatus
Inventor: CHUNG HWA JUN
IPC: H01L21/3065
Filed: 2007-08-07
Abstract: A plasma etching apparatus is provided to allow a user to exchange or repair only a liner member in which problem is generated by several liner members which are mutually separated to protect the inner wall of the process chamber. The plasma-etching apparatus comprises the chamber body(10), the upper electrode(40), and the bottom electrode(30) and wall liner(50). It has the process chamber in which the process gas is injected the chamber body. A plasma etching apparatus includes a chamber body, an upper electrode, a bottom electrode and wall liner. The chamber body has a process chamber into which the process gas is injected. The upper electrode is installed on the top of the chamber body, and the bottom electrode is installed in the lower part of the chamber body. The wall liner protects the inner wall of the chamber body while being installed inside the chamber body. The wall liner is composed of a plurality of liner members(51) which is capable of being mutually separated.
Patent KR-20090016899-A (KR)
Title: 나노 염화나트륨 칩.
Inventor: YOO JIN HWAN
IPC: C07F1/04
Filed: 2007-08-13
Abstract: 염화나트륨(Nacl)을 전기적 성질 즉 도체도 아니고 부도체도 아닌 것에 참작, 반도체, 다이오드, 콘덴서를 나노기술을 이용 미국이나 일본, 유럽에서 엄청난 예산을 쏟아부으며 기술 개발하고 있으나 지지부진, 미국에서는 전자현미경을(1/10 10억분의 1로 맞춘후 로봇팔 하나 하나를 추출, 나노 염화나트륨 칩만 사용하면 지능형 로봇들이 건축물을 만들고 공장에서 로봇들이 24시간 일을 하고, 인공위성이나, 차세대 전투기, 미사일 등 전세계에 엄청난 변화가 있을 것이라고 생각, 또 나노 염화나트륨을 정제 밧데리 등, 휴대용 전자제품에 변화가 있음 
     유선 만볼트 이상의 전자석으로 염화나트륨(지구상에 엄청 많음) 가루로 만들고   앞을 대면 나노 염화나트륨(어렸을때 건전지를 소금에다 담가 두면 충전이 됐음)이 붙고 그 나노 염화나트륨을 다른 곳에서 엄청난 고압으로 찍어내면 나노칩, 밧데리, 전자 부품을 값싸게 추출 할 수 있음 
       
     나노 염화나트륨, 반도체, 차세대 전투기, 헬기.
Patent KR-20070092694-A (KR)
Title: Display device
Inventor: KOYAMA JUN
IPC: G09G3/30
Filed: 2007-08-20
Abstract: A display device is provided to reduce non-uniformity of display regions by preventing a voltage variation due to a voltage drop, which is caused by a wiring resistance of a power line. A display device includes plural gate and source signal lines(G1-G4,S1-S3), plural first source voltage supplying lines(VX1,VX2), and plural second source voltage supplying lines(VY1,VY2). The gate and source signal lines are formed in a substrate. The first and second source voltage supplying lines are elongated in a parallel direction of the gate and source signal lines, respectively. The first and second source voltage supplying lines are formed to cross each other. The first source voltage supplying lines are formed the same material as the gate signal lines, and the second source voltage supplying lines are formed the same material as the source signal lines. One of the first source voltage supplying lines is connected to one of the second source voltage supplying lines through an insulated contact hole.
Patent KR-20090022185-A (KR)
Title: Inverted non-volatile memory devices, stack modules and method of fabricating the same
Inventor: HUXIANG YIN
IPC: H01L21/8247
Filed: 2007-08-29
Abstract: An inverted nonvolatile memory device, a stack module, and a manufacturing method thereof are provided to improve integration by applying three dimensional stack structure. A plurality of bottom gate electrodes(110) are provided on a substrate(105). A plurality of charge storage layers are provided on the bottom gate electrodes. A plurality of semiconductor channel layers(135) are arranged in one or more charge storage layers respectively. One or more source electrodes(140) are electrically connected to both sides of the semiconducting channel layers. One or more source electrodes and one or more drain electrodes(145) are extended from both sides to the top of the semiconductor channel layers.
Patent KR-20090028051-A (KR)
Title: Novel double glycosylated dimeric erythropoietin, gene coding the erythropoietin, recombinant expression vector containing the gene, transformant transfected with the recombinant expression vector and manufacturing method thereof
Inventor: MIN KWAN SIK
IPC: C07K14/00
Filed: 2007-09-13
Abstract: A double glycosylated dimeric erythropoietin is provided to extend metabolism time of the double glycosylated dimeric erythropoietin and to supply human erythropoietin(EPO) for stimulation of hematogenesis with a superior activity. A double glycosylated dimeric erythropoietin is formed by combining two glycosylated dimeric erythropoietins indicated as amino acid sequence of a sequence number 1 or is formed by amino acid sequence indicated as a sequence number 2. Microorganism transformed to recombinant expression vector by gene ciphering amino acid sequence of the dimer erythropoietin is cultivated in a culture material. The glycosylated dimeric erythropoietin indicated as the amino acid sequence of the sequence number 2 is obtained from the culture material.
Patent KR-20090030748-A (KR)
Title: Polymer substrate having enhanced flexibility in flexible display
Inventor: YOON CHOON SUP
IPC: G02F1/1335
Filed: 2007-09-21
Abstract: A polymer substrate for flexible display having enhanced flexibility is provided to enhance an elastic limit by embedding a lattice type ultra elastic alloy structure or/and a ring type ultra elastic alloy structure on a polymer substrate for display. A device unit is divided into an output layer outputting an image and a driving layer driving the output layer. The driving layer is made of a thin film transistor. A polymer substrate(120) is made of one of poly ethylene naphthalate(PEN), polycarbonate(PC) and polyethylene terephthalate(PET). The polymer substrate comprises a lattice type ultra elastic alloy structure(122) or a ring type ultra elastic alloy structure(124). Moreover, the lattice type ultra elastic alloy structure and the ring type ultra elastic alloy structure are laminated. The lattice type ultra elastic alloy structure forms a lattice structure like mesh. The lattice type ultra elastic alloy structure forms a frame in an outer circumference. A shape of the frame is rectangular or square. A rectangular or square corner is round. The corner forms a closed loop of the ring type ultra elastic alloy structure.
Patent KR-20080011145-A (KR)
Title: Device for inline skate
Inventor: LEE CHANG JU
IPC: A63C17/02
Filed: 2007-10-15
Abstract: An inline skate is provided to enable a user to convert an inline skate into a roller skate so that a beginner learns easily how to ride, to adjust the width of the wheels and to be used by children. An inline skate includes a boot(110), a frame(130) and wheels(120). The frame includes a bottom frame and a couple of right and left vertical frames(134,136), which extend vertically to the bottom frame, and are formed in a longitudinal direction of the skate. Plural left and right side holes are formed in a longitudinal direction of the left and right vertical frames. One wheel is able to be installed between the left and right vertical frames in a position corresponding to the left and right side holes, or a couple of wheels are installed on the outer sides of the left and right vertical frames.
Patent KR-20090040073-A (KR)
Title: 전동 웨지 브레이크 장치
Inventor: KIM JONG SUNG
IPC: F16D65/18
Filed: 2007-10-19
Abstract: 본 발명은 디스크 로터의 축방향으로 모터를 배치하여 브레이크 장치의 폭방향 길이를 축소하고 이를 통해 주변 부품과의 간섭을 회피함과 더불어, 관련 부품의 수량을 최소화하여 보다 컴팩트한 구조의 전동 웨지 브레이크를 제공하는 데 그 목적이 있다. 
     전술한 목적을 달성하기 위한 본 발명은, 캐리어(1)에 지지되어 디스크 로터(7)의 축방향으로 이동가능하게 설치된 메인 프레임(10)과; 상기 메인 프레임(10)에 대해 상기 디스크 로터(7)의 축방향으로 설치되는 모터(12); 상기 모터(12)의 구동에 따라 축이동하는 볼너트(14); 상기 볼너트(14)에 결합되어 제동시 내/외측 패드(5,5')와 상기 디스크 로터(7) 사이를 면착시키는 상부웨지(16); 상기 메인 프레임(10)에 지지되고, 제동시 웨지 롤(17)을 매개로 상기 상부웨지(16)에 반력을 제공하는 하부웨지(18) 및; 상기 모터(12)의 구동에 따라 축이동하는 어져스팅 너트(20)를 갖추고서, 상기 내/외측 패드(5,5')의 마모시 상기 디스크 로터(7)와의 간극을 보상하는 마모 보정부를 구비한다.
Patent KR-20090040588-A (KR)
Title: Apparatus having dynamic host configuration protocol - snooping function
Inventor: CHOI MI JI
IPC: H04L29/06
Filed: 2007-10-22
Abstract: An apparatus having a dynamic host configuration protocol-snooping function is provided to secure a service of a normal IP user even though re-booting, daemon restart, or etc. occurs in a DHCP(Dynamic Host Configuration Protocol) snooping device. DHCP(Dynamic Host Configuration Protocol) snooping device includes a snooping unit(300) and a DHCP snooping binding table(302), an ARP(Address Resolution Protocol) processor(310) and an ARP table(320). The snooping unit obtains information having a hardware address and an IP(Internet Protocol) address for each host, and the ARP processor includes a filtering unit(312). The filtering unit passes an ARP packet during predetermined period, and passes or abolishes the ARP packet based on the information during the rest period.
Patent KR-20090041079-A (KR)
Title: Tuner
Inventor: CHOI MYOUNG JAE
IPC: H04N5/50
Filed: 2007-10-23
Abstract: A set top box tuner is provided to reduce a cost by connecting an output terminal of a master tuner and an input terminal of a slave tuner directly in horizontal direction without using additional external cable for the connection. A master tuner(21) comprises an antenna input terminal(211) in one side of a chassis. The antenna input terminal is combined with an external antenna line. The high frequency signal is inputted to the antenna input terminal. An upper side of the chassis, an output terminal(212) is equipped. The output terminal distributes the high frequency signal inputted from the antenna input terminal. A slave tuner(22) includes a signal input terminal(221) in one side of the chassis. The output terminal of the master tuner is inserted and connected to the signal input terminal. A loop through terminal(222) is equipped in the other one side of the chassis. The loop through terminal distributes the high frequency signal inputted from the signal input terminal. The output terminal of the master tuner and the signal input terminal of the slave tuner are directly connected to the horizontal direction.
Patent KR-20090041777-A (KR)
Title: Apparatus for handover based on dynamic beamforming scheme and method thereof
Inventor: LEE JI HOON
IPC: H04B7/26
Filed: 2007-10-24
Abstract: A handover apparatus and a method thereof based on dynamic beam forming mode comprising network supporting the high-speed portability are provided to reduce control overhead by improving connectivity between nodes within network based on the dynamic beamforming scheme. A mobile profile information processing unit(110) processes mobile profile information according to the location of a mobile node. A mobile profile information processor produces the beam forming control signal according to the mobile profile information. A hand over discrimination message processor(120) generates the first handover identical message reflecting the mobile profile information. A transceiver(140) transmits the first hand over identical message. The transceiver receives the second hand over identical message from the mobile node. According to the beam forming control signal, a beam forming controller(130) controls the beam forming for the electrical transmission of transceiver.
Patent KR-20090041821-A (KR)
Title: Internet netwroks intermediate acution system depends on sellers affection
Inventor: PAK CHONG CHIN
IPC: G06Q30/08
Filed: 2007-10-25
Abstract: A system implementing a method for inserting subjectivity of a seller in an auction through internet network capable of directly selecting a successful bidder is provided to select the auction bidder under a condition that the seller wants. An auction information database stores the information of the auction. A bidder database(310) stores the information for the information of bidder and bidder selection. A successful bid determination database stores the information about the auction in which the winning bid is settled. An auction system module(200) proceeds the auction. A bidding module(210) performs the bid of the auction. A bidder selection module displays the bidder of the auction to seller. The seller selects the successful bidder. A successful bidding charge collecting module collects the successful bid price to the successful bidder of the auction. A result notify module(240) communicates the progressing of the auction.
Patent KR-20080070499-A (KR)
Title: Liquid feeding device
Inventor: XIA CHENG XIONG
IPC: B05C5/02
Filed: 2007-10-26
Abstract: A liquid feeder is provided to prevent the liquid containing bubbles from being discharged by detecting the retardation of the backward of a piston due to the mixing of bubbles with a sensor. A liquid feeder(1) comprises a server tank(2) which can pressurize the liquid of undercurrent; a syringe pump(3) which introduces the liquid from the server tank into the inner space formed by a syringe(9) and a piston(11) by backing the piston by the pressure of the liquid and discharges the liquid from the inner space by forwarding the piston; a conversion valve(6) which connects the inner space with at least one of an inflow channel(5) and a discharge channel(8); a drive unit(4) which is provided with a pusher(14) capable of moving in the forward and backward direction of the piston and being in contact with the external part of the piston to forward the piston; a sensor(15) which detects whether the piston is placed within a certain distance from the pusher; and a control unit(16) which stops the operation of the pusher if it is detected that the piston is not within the certain distance from the pusher for the time more than a certain set time.
Patent KR-20090046074-A (KR)
Inventor: LEE CHOONG HWI
IPC: D06F39/08
Filed: 2007-11-05
Abstract: 세탁기에 대한 발명이 개시된다. 개시된 발명은: 터브를 수용하는 캐비닛과; 터브와 연결되어 캐비닛 내부에 배치되며, 선택적으로 단턱이 형성되는 배수호스; 및 배수호스를 캐비닛에 고정시키는 클램프를 포함한다. 
     본 발명에 의하면, 세탁기 작동 시 배수호스의 움직임을 차단시켜 배수호스와 캐비닛과의 간섭 소음 발생을 방지할 수 있고, 배수호스를 캐비닛에 쉽게 조립할 수 있는 장점이 있다. 
       
     세탁기, 배수호스, 클램프
Patent KR-20090047049-A (KR)
Inventor: MIN TAE SIK
IPC: F24F7/08
Filed: 2007-11-07
Abstract: 본 발명은 하나의 모터만으로 실내공기와 실외공기를 유입 및 배출시킬 수 있는 송풍기를 구비함으로써 가격이 저렴한 동시에 컴팩트한 구조의 환기장치를 제공하고자 함에 그 목적이 있다. 
     이를 구현하기 위한 본 발명의 환기장치는, 실내공기를 환기시키기 위한 환기장치에 있어서, 상기 실내공기의 환기는 하나의 모터 양측에 2개의 팬이 설치된 송풍기에 의해 이루어지는 것을 특징으로 한다. 
       
     환기, 실내, 실외, 열교환, 급기, 배기, 모터, 송풍기
Patent KR-20090049407-A (KR)
Inventor: KIM JIN SOO
IPC: H01L21/027
Filed: 2007-11-13
Abstract: 본 발명은 이중 노광용 마스크와 이를 이용한 반도체 소자의 패턴 형성방법에 관한 것으로, 제1 방향 피치가 2a, 제2 방향 피치가 2b인 노광 마스크를 이용하여 1차 노광한 후 상기 1차 노광 위치로부터 제1 방향으로 a 피치, 제2 방향으로 b 피치 이동한 위치에서 동일한 크기의 투광영역을 갖는 노광 마스크를 이용하여 2차 노광하는 이중 노광을 수행함으로써 제1 방향 피치가 a, 제2 방향 피치가 b인 패턴을 정확하게 대칭이 되도록 형성할 수 있고, 원하는 공정 마진을 확보할 수 있다.
Patent KR-20090051571-A (KR)
Inventor: HWANG YOON KWON
IPC: B60G17/00
Filed: 2007-11-19
Abstract: 본 발명은 차고센서에 관한 것으로서, 일단이 차체에 회전 가능하도록 고정 설치되고, 타단에는 장착홀이 형성되는 컨트롤암; 장착홀에 일단이 삽입되어 회전되는 볼조인트; 볼조인트의 타단과 결합되고 휠이 장착되는 너클; 볼조인트에 내장되는 자석체; 및 컨트롤암에 장착되어 자석체의 자장을 측정하는 감지부를 포함한다. 
     본 발명에 따른 차고센서는 부품수를 절감하며 조립성을 향상시킨다. 
       
     차고센서, 너클, 컨트롤암, 휠
Patent KR-20090052613-A (KR)
Inventor: LEE HEE CHOON
IPC: B29C35/02
Filed: 2007-11-21
Abstract: 본 발명은 적어도 내산성이 요구되는 복잡한 형상의 피착구조물에 대하여 3중 프라이머 처리와 겹침마감방식의 시트 접착 공정 및 가류 공정을 진행함에 따라, 고무라이닝용 고무시트의 계면 박리를 미연에 차단할 수 있고, 약품에 의한 발열반응 또는 외부 온도변화에 강한 내구성 및 내산성을 발휘할 수 있는 고무라이닝 방법 및 그의 구조를 제공하고자 한다. 
     본 발명의 고무라이닝 방법은 적어도 내산성이 요구되는 피착구조물의 접착기면(substrate)을 보수하는 제1단계(S10)와, 보수된 접착기면을 탈지하는 제2단계(S20)와, 탈지된 접착기면을 샌딩(sanding)하는 제3단계(S30)와, 샌딩된 접착기면에 대해 3중 프라이머 처리를 진행하는 제4단계(S40)와, 미가류 고무시트를 가공하는 제5단계(S50)와, 3중 프라이머 처리된 접착기면의 국부를 보정하는 제6단계(S60)와, 미가류 고무시트를 겹침마감방식으로 접착하는 제7단계(S70)와, 미가류 고무시트가 접착된 라이닝구조물 전체를 가류오븐에서 가류시키는 제8단계(S80)와, 가류된 라이닝구조물을 광차단 기능의 고분자필름으로 포장하는 제9단계(S90)를 포함한다. 
       
     고무라이닝, 고무시트, 프라이머, 가류
Patent KR-20070116577-A (KR)
Title: Transformable blade turbine for tidal current power plant
Inventor: WHANG CHUL HYUN
IPC: F03B3/14
Filed: 2007-11-20
Abstract: A transformable blade turbine for a tidal power plant is provided to use both a flood and an ebb tide current energy and to protect tilting of a buoy by allowing the inclination of the blade to be changed according to the movement of a protrusion of the blade within the clearance groove. A transformable blade turbine for a tidal power plant comprises a horizontal axle(1), an arm unit(6) with an arm axle(3) which has a protrusion(2) and is installed to cross at regular intervals on the horizontal axle, and a blade(5) which is formed with a clearance groove inside to accommodate the protrusion and fixed on the arm axle. The inclination of the blade is changed as much as the moving angle of the protrusion in the clearance groove in the direction of a tidal current.
Patent KR-20090054614-A (KR)
Title: Tailored catalyst binder of non-perfluorinated type, membrane-electrode assembly comprising thereof, and fuel cell comprising the same
Inventor: LEE YOUNG MOO
IPC: H01M4/86
Filed: 2007-11-27
Abstract: A tailored non-perfluorinated type catalyst binder is provided to enable uniform catalyst dispersion without use of organic solvent, to ensure high hydrogen ion conductivity, high catalyst activity, and high adhesive force with non-fluorinated polymer electrolyte. A tailored non-perfluorinated type catalyst binder has the same or similar chemical structure as/to the materials of polymer electrolyte membrane. The catalyst binder has the sulfonation degree of 40% or greater and is bonded with a sulfonic acid group in an ammonium salt or monovalent and divalent metal salt. The non-perfluorinated type catalyst binder is polyimide, polysulfone, poly(arylene ether sulfone), poly(arylene ether ketone), poly(arylene sulfone sulfone), polybenzimidazole, polybenzoxazole, polybenzthiazole, poly(ether ether ketone), homopolymer of polyphosphazene, crosslinked polymer, graft polymer, copolymers or blend.
Patent KR-20080048418-A (KR)
Title: Aerial cableway device
Inventor: BECK MARKUS
IPC: B61B12/00
Filed: 2007-11-27
Abstract: An aerial cableway device is provided to allow passengers to get on/off a traveling operation unit when the traveling operation unit enters a middle station by braking the traveling operation unit at low speed. An aerial cableway device includes traveling operation units(6), a middle station(2), and lower and upper stations. The traveling operation units are coupled with or separated from two cable loops. A lower cable loop(4) is arranged between the lower and middle stations. An upper cable loop is arranged between the middle and upper stations. The lower and upper cable loops are guided to a periphery of a common guide device(7) at the middle station. The guide device is stationary arranged and is a cable pulley of a dual groove.
Patent KR-20090056068-A (KR)
Title: Alarm apparatus and method for the prevention of the car accidents
Inventor: KIM KI JAE
IPC: G08G1/16
Filed: 2007-11-29
Abstract: An alarm apparatus and a method for prevention of car accidents are provided to prevent a car accident effectively by classifying a danger into a grade and alarming it by the grade. Information collecting units(110,120,130) collect an internal state of a traveling vehicle, an environment condition, and a traffic condition in real time. A danger determination unit(170) compares the internal state and the environment condition with reference information and determines the danger. If the danger grade is higher than the reference grade, an urgent situation alarm unit(190) transmits urgent alarm to surrounding vehicles and a display unit(180) outputs a warning message corresponding to the danger grade.
Patent KR-20090058196-A (KR)
Title: Fabricated apparatus for sports climbing
Inventor: BACK OK SOON
IPC: A63B27/00
Filed: 2007-12-04
Abstract: A prefabricated artificial rock wall structure for the rock climbing practice is provided, which enables children or the teenagers to enjoy the rock climbing interestingly. A prefabricated artificial rock wall structure comprises: a wall(20) in which the space of hollow is formed inside the board and which is equipped with boards connected to the top and bottom; a lateral frame(30) which is arranged along both side corners of the wall, is equipped with protrusions inserted into the space of the board, and supports both sides of the wall connected board; a plurality of holders which are protruded in order to be mounted on the board of the wall; and an unevenness(10) formed in the surface of the board.
Patent KR-20090058975-A (KR)
Title: Roast use of far infrared ray heat resisting ceramic heater pole
Inventor: BAK KWON CHANG
IPC: A47J37/04
Filed: 2007-12-05
Abstract: A roasting apparatus using a far infrared ray heat resistance heater pole is provided to constantly transmit heat to the food selecting the indirect heating method of radiant heat. A roasting apparatus using far infrared ray heat ceramic heater pole comprises: a main body(101) of the roasting apparatus in a box form of far infrared ray heat resistance ceramic heater pole; and a heat lamp(203) and metal heating element which is inserted to heat resistance ceramic heater pole. The far infrared is treated with glaze coating and fluorine coating the surface of the far infrared heat resistance ceramic heater pole; A side whole hole heat pole is formed.
Patent KR-20090060744-A (KR)
Title: Apparatus of air purification and dust discharge
Inventor: LEE WOO CHANG
IPC: B01D46/00
Filed: 2007-12-10
Abstract: An apparatus for air purification and dust discharge is provided to maintain comfortable and clean indoor air by securing uniform air current distribution and cleaning the apparatus regularly. An apparatus for air purification and dust discharge includes an electronic operating part(100), a central control part(200), an air purification part(300), a humidity control part(400), a vacuum cleaning part(500) and a washboards(600). The electronic operating part outputs key signals of a user through a wire/wireless mode into the central control part. The central control part controls the air purification part, the humidity control part and the vacuum cleaning part. The air purification part inhales the air from the outside, and supplies the air into indoor space. The humidity control part generates humidity, and supplies the humidity into the corresponding indoor space. The vacuum cleaning part discharges dust to the outside. The washboard supplies the air and the moisture or discharges the dust to the outside.
Patent KR-20090060827-A (KR)
Title: Adhesive composition comprising phase change material and adhesive sheet using the same
Inventor: CHO BYEONG GYU
IPC: C09J11/00
Filed: 2007-12-10
Abstract: An adhesive composition is provided to increase efficiency which absorbs or emits heat for a long term, and to prevent the degradation of adhesive force by suppressing the leakage of phase change materials within a capsule to the outside of capsule. An adhesive composition comprises polymeric capsules containing phase change materials; and acrylic polymerization resin having solid content of 99% or more. The acrylic polymerization resin is partially polymerized resin with the content of a prepolymer of 50 % or less. The phase change material is one or more selected from the group consisting of hydrate type inorganic materials, paraffin-based hydrocarbon and organic acid.
Patent KR-20090064032-A (KR)
Title: Over head chain conveyer device
Inventor: GIM YEONG SIN
IPC: B62D65/18
Filed: 2007-12-14
Abstract: An overhead chain conveyor device is provided to improve an upper dog of a front trolley so as to prevent non-uniform transfer of a hanger body caused by pulsation or surging of a free chain unit. An overhead chain conveyor device(100) includes a power chain unit(10) and a free chain unit(50). The power chain unit includes a chain(11) and a pusher(21) fixed to the chain and transfers power to a hanger body which supports a car body. The free chain unit corresponds to the power chain unit and has a front trolley(31) and a rear trolley connected to the hanger body. The pusher includes a first part fixed to the chain and a second part projected downward. The front trolley includes a front dog(35) and an upper dog(38) linked to the front dog.