baber/WOPTO huggingface dataset:
Patent KR-102022250-B1 (KR)
Inventor: JANG JAE HUI
IPC: G06F3/045
Filed: 2019-02-08
Granted: 2019-11-04
Abstract: The present invention relates to a display device having a coating layer with improved reflectivity and transmittance of AR/infrared rays (IR) using a sputtering process and, more specifically, to a display device having a coating layer with improved reflectivity and transmittance of AR/IR using a sputtering process, which has reflectivity less than or equal to 5% in a visible ray section and equal to or more than 45% in an IR section, transmittance equal to or more than 90% in the visible ray section, and a solar light shielding ratio equal to or more than 25% in the IR section by forming an AR/IR coating layer by the sputtering process. To this end, the display device having a coating layer formed by using a sputtering process comprises: a glass as the display device, on which multiple layers of Nb205 and SiO2 are alternately deposited; a first layer of Nb2O5 deposited on the glass; a second layer of SiO2 deposited on the first layer; a third layer of Nb2O5 deposited on the second layer; a fourth layer of SiO2 deposited on the third layer; a fifth layer of Nb2O5 deposited on the fourth layer; and a sixth layer of SiO2 deposited on the fifth layer, wherein the reflectivity is less than or equal to 5% in a visible ray section (550 nm) and equal to or more than 45% in an infrared ray section (1100 nm), the transmittance is equal to or more than 92% in the visible ray section (550 nm), and the solar light shielding ratio is equal to or more than 25% in the infrared ray section (1100 nm).
Patent KR-102019628-B1 (KR)
Title: Temperature control apparatus and organic waste disposal apparatus
Inventor: NA PYUNG CHUL
IPC: C02F11/04
Filed: 2019-02-12
Granted: 2019-09-06
Abstract: The present invention relates to a temperature control device and an organic waste treatment device having the same. More particularly, the present invention relates to a temperature control device for controlling a temperature of a digester or organic waste while being provided with in the digester containing the organic waste and maintaining the temperature appropriately, and an organic waste treatment device having the same. The temperature control device comprises: a supply unit (110); a discharge unit (120); a heat exchange unit (130); and a support unit (150).
Patent KR-102219563-B1 (KR)
IPC: C07C209/36
Filed: 2019-02-15
Granted: 2021-02-24
Abstract: 본 발명은 4-CA 및 F-NO 2 를 반응온도보다 높은 끓는점(boiling point)를 갖는 극성 비양자성 용매(polar aprotic solvent)를 반응시켜 제조되는 CPNA와 산화수가 -2가인 황화합물을 반응시켜 제조되는 CPDA 및 여기서 제조된 CPNA 또는 CPDA를 이용하여 제조되는 clofazimine과 이들의 제조방법에 관한 것이다. 
본 발명은 CPNA 제조 시 공정을 단순화하고 공정 안정성을 향상시켜 생산효율을 극대화할 수 있다. 또한, 본 발명은 황화합물을 환원제로 사용하여 높은 수율과 고순도의 CPDA를 제조할 수 있다. 또한, 본 발명은 종래 통상적으로 이루어지고 있는 Work-up 공정을 통해 부산물을 제거하는 공정에 비하여 정제수 세척만으로 부산물을 간단히 제거할 수 있어 상업화에 유리하며, 용매를 최소화하게 되어 친환경 공정을 구현할 수 있다.
Patent KR-102016558-B1 (KR)
Title: Artificial reef using 3D printer and manufacturing method of it
Inventor: CHUN JIN YOUNG
IPC: A01K61/70
Filed: 2019-02-18
Granted: 2019-09-03
Abstract: The present invention relates to an artificial fishing reef using a 3D printer and a manufacturing method thereof. The manufacturing method of the present invention comprises: a structure composition preparing step; a support composition preparing step; a molding step; a curing step; and a separating step. Therefore, the artificial fishing reef of a complicated shape can be easily manufactured.
Patent KR-102211752-B1 (KR)
IPC: H01L27/11568
Filed: 2019-02-26
Granted: 2021-02-02
Abstract: 집적도를 도모하는 동시에 제조 공정을 단순화하는 3차원 플래시 메모리 및 그 제조 방법이 개시된다.  일 실시예에 따르면, 일 방향으로 연장 형성되는 복수의 수직 스트링들-상기 복수의 수직 스트링들 각각은, 상기 일 방향으로 연장 형성되는 채널층 및 상기 채널층을 둘러싸도록 상기 일 방향으로 연장 형성되는 전하 저장층으로 구성됨-을 포함하는 3차원 플래시 메모리에 있어서, 상기 복수의 수직 스트링들은, 서로 다른 단면적을 갖는 적어도 두 개 이상의 그룹들로 그룹핑되는 것을 특징으로 한다.
Patent KR-102009757-B1 (KR)
Title: Apparatus for sorting pellet with foreign matter based on artificial intelligence program
Inventor: PARK YONG JAE
IPC: G06T7/00
Filed: 2019-03-21
Granted: 2019-08-12
Abstract: The present invention relates to an apparatus for sorting foreign matters based on an artificial intelligence program. According to one embodiment of the present invention, the apparatus for sorting foreign matters based on an artificial intelligence program comprises: a supply unit (100) configured to supply a sorted object (1) including a plurality of pellets; a transfer unit (20) configured to receive the sorted object (1) and transfer the same by a predetermined distance; a photographing unit (30) including at least one camera for photographing the transferred sorted object (1) and configured to obtain an original image (2); a transmitting unit (40) configured to covert a size of the obtained original image (2) into a predetermined size and transmit a converted image (3); a receiving unit (50) configured to receive the converted image (3); a region extracting unit (60) configured to obtain a first feature map from the received converted image (3) using a first convolutional neural network (CNN) and extract a region of interest including the pellets from the converted image (3) by applying a region proposal network (RPN) to the first feature map; a determining unit (70) configured to determine normal pellets and abnormal pellets by applying a second CNN to an extracted region of interest image (4); and an information outputting unit (80) configured to display the region of interest on the original image (2) and integrate and output information about the abnormal pellets. According to the present invention, it is possible to quickly and accurately sort, in a work site, abnormal pallets in large quantity.
Patent KR-102028100-B1 (KR)
Inventor: PARK JOONG SOON
IPC: B60T17/18
Filed: 2019-03-25
Granted: 2019-11-04
Abstract: The present invention relates to a release system for a parking brake of a vehicle in an emergency, capable of largely improving workability for releasing a parking brake and enabling a user to flexibly handle an emergency. According to the present invention, the release system for a parking brake of a vehicle in an emergency includes: a service hydraulic line applying hydraulic pressure to a service brake piston by generating the hydraulic pressure in a master cylinder by the push operation of a brake pedal and, therefore, operating a service brake; a parking hydraulic line applying the hydraulic pressure to the parking brake piston or releasing the hydraulic pressure as the position of a solenoid valve is changed due to the operation of a parking brake switch and, therefore, operating or releasing a parking brake; a parking brake release valve installed on the parking hydraulic line, wherein the parking brake release valve is to change the flow path of a fluid flowing into a parking brake device by moving in the longitudinal direction by screw operation; an accumulator supplying the fluid stored in accordance with a flow path change of the parking brake release valve to the parking brake piston; and a brake block in which the accumulator is installed, wherein the brake block has an emergency hydraulic line separately branching from the parking brake′s hydraulic line.
Patent KR-102027731-B1 (KR)
Title: Cutting Apparatus for Excavators
Inventor: SONG MIN SUK
IPC: E02F3/96
Filed: 2019-03-26
Granted: 2019-10-01
Abstract: The present invention relates to a cutting apparatus for an excavator, which comprises: a first body unit of which a connection rod connected to a link of an excavator is provided in an upper portion, a first blade unit is provided on one side of a lower portion, and a 1-1 hole is provided on the other side of the lower portion; a second body unit of which a 2-1 hole connected to the 1-1 hole is provided on one side of an upper portion, a 2-2 hole is provided in the center of the upper portion, and a second blade unit engaged to the first blade unit is provided in a lower portion; and an angle adjustment unit of which a plate-shaped 3-1 hole connected to the 2-2 hole is provided in a lower portion.
Patent KR-101991281-B1 (KR)
Title: IOT based system for monitoring displacement of cultural properties
Inventor: CHOI JONG OON
IPC: G06Q50/10
Filed: 2019-03-26
Granted: 2019-06-20
Abstract: The present invention relates to an IOT based system for monitoring cultural asset displacement (1) which includes: a sensing unit (3) mounted at a cultural asset (2); a relaying unit (5) receiving a signal from the sensing unit (3) and converting the signal into a low-power long-distance communication signal to transmit the same; and a server (S). The server (S) includes: a slope determining unit (33) analyzing a signal of the sensing unit (3) inputted through an inputting unit (31) to determine a degree of tilt of a cultural asset; a crack determining unit (35) determining whether the cultural asset is cracked by the signal of the sensing unit (3); a temperature and humidity determining unit (37) determining temperature and humidity by the signal from the sensing unit (3); a climate managing unit (39) managing climate data of a corresponding region by recognizing a location of the cultural asset; a determining unit (45) calculating a risk degree of the cultural asset by interconnecting the slop determining unit (33), the crack determining unit (35), the temperature and humidity determining unit (37), and the climate managing unit (39), classifying the cultural asset as stone asset, wooden asset, and metal asset, and applying weights differentially according to weather of a location where the cultural asset is located to calculate risk degree of the cultural asset; and a database (47) storing and managing data for the cultural asset and climate. According to the present invention, it is possible to accurately recognize and manage status of a cultural asset.
Patent KR-102327560-B1 (KR)
IPC: F16H55/10
Filed: 2019-04-01
Granted: 2021-11-17
Abstract: 본 발명은 회전력을 입력받은 후, 회전 출력은 회전 및 정지를 주기적으로 반복하여 출력하는 것을 특징으로 하는 회전 및 정지를 주기적으로 반복하는 구동장치에 관한 것으로 유압장치가 사용되지 않고 정지 및 구동이 가능하여, 장치의 구조가 단순하고 설치 및 유지 비용이 낮아 경제성이 높은 효과 및 소정의 물체를 승하강 시킴으로써 안정된 수직이동과 정밀한 제어가 가능한 효과가 있다.
Patent KR-102224648-B1 (KR)
IPC: E02D29/02
Filed: 2019-04-16
Granted: 2021-03-08
Abstract: 미세먼지 흡착과 제거가 가능한 모헤어 및 대기 중의 전구물질 흡착 및 제거가 가능한 기포콘크리트를 담는 키트를 포함함으로써 대기 중의 전구물질 및 미세먼지의 흡착 및 제거가 가능하고, 상기 키트와 결합되는 프레임 구조를 포함함으로써 상부하중의 저항성 및 유지관리 효율이 향상된 블록이 개시된다. 본 발명은 기포 콘크리트 골재; 상기 기포콘크리트 골재를 담는 키트; 및 상기 키트가 삽입되는 키트 삽입공이 형성된 프레임;을 포함하는 대기 중의 전구물질 흡착과 제거가 가능한 블록을 제공한다.
Patent KR-102011469-B1 (KR)
Title: Method and apparatus for communication status measuring in naval combat system
Inventor: JEONG YEONG WOOK
IPC: H04L12/26
Filed: 2019-04-25
Granted: 2019-08-16
Abstract: The present invention relates to an apparatus for measuring a communication state in a naval combat framework system which not only continuously checks latency between nodes by monitoring a communication state of large nodes in a naval combat framework system, but also simultaneously measures the performance of software and hardware redundancy (or multiplexing). The apparatus may comprise: a plurality of nodes for transmitting a corresponding user diagram protocol (UDP) response message of a predetermined size to a server through a network when a multicast UDP message is received from the server to monitor communication state measurement over the network; and a server for multicasting the multicast UDP message for monitoring the communication state of the plurality of nodes to the plurality of nodes via the network according to a predetermined period, and saving, when the UDP response message is received from the plurality of nodes, a log value for a node where a communication error occurs by determining a round trip delay value of the received UDP response message.
Patent KR-102521449-B1 (KR)
IPC: H10K50/00
Filed: 2019-04-29
Granted: 2023-04-12
Abstract: 본 발명은 신규한 헤테로 고리 화합물 및 이를 이용한 유기발광 소자를 제공한다.
Patent KR-102002578-B1 (KR)
Title: The manufacturing method of swellfish paste sauce
Inventor: CHOI CHANG UP
IPC: A23L7/104
Filed: 2019-05-15
Granted: 2019-07-22
Abstract: The present invention is to provide a swellfish paste sauce used as a seasoning of dishes with flesh of swellfish and red pepper powder and a method for manufacturing a swellfish paste sauce which can be effectively used for mixed foods, soup or salad. The swellfish paste sauce of the present invention is manufactured by the processes of: grinding flesh of swellfish finely, mixing the same with bay salt and ripening the mixture; preparing a water parsley enzyme; filtering malt, inputting glutinous rice powder and fermenting the same; mixing red pepper powder and fermented soybean lump powder, kneading the ripened flesh of swellfish, water parsley enzyme and fermented glutinous rice powder, adding Soju (Korean distilled spirits) and kneading the mixture to prepare a sauce; and inputting the prepared sauce in a jar and ripening the sauce.
Patent KR-102261671-B1 (KR)
IPC: G01N33/53
Filed: 2019-05-23
Granted: 2021-06-07
Abstract: 본 발명은 소결핵 진단용 인터페론 감마 진단 키트에 사용되는 감작항원이 코팅된 반응용기 및 그 용도에 관한 것으로, 더욱 자세하게는 배양 반응용기내에 소결핵 자극용항원이 코팅되어 있어, 인터페론감마 분비 항원만을 수득할 수 있으며, 반응용기를 원심분리하여 항원 샘플링이 가능하도록 제작된 결핵 진단용 인터페론 감마 진단 키트 구성품으로 사용가능한 배양용 반응용기 및 그 용도에 관한 것이다.  본 발명에 따른, 결핵자극용 항원 배양용 반응용기를 이용하면 결핵 분비항원을 함유하는 배양 상등액을 간편하게 분리 및 수득할 수 있어 감염 우려 없이 간편하게 결핵을 진단할 수 있다.
Patent KR-102196352-B1 (KR)
Title: 익사 진단용 바이오마커 및 이를 이용한 익사 판단 방법
IPC: C12Q1/6876
Filed: 2019-05-27
Granted: 2020-12-29
Abstract: 본 발명은 죽음의 원인을 익사로 판단하는 정보를 제공하기 위해 피검체인 익사체에서 분리된 샘플로부터 RAGE의 발현량을 측정하는 방법을 제공한다. 또한, RAGE의 발현수준을 측정하는 제제를 포함하는 익사를 판단하는 진단용 키트를 제공한다.
Patent KR-102152077-B1 (KR)
Inventor: SONG KYUNG MO
IPC: A23L29/00
Filed: 2019-05-31
Granted: 2020-09-07
Abstract: The present invention relates to a papain enzyme decomposition product derived from a cocoon with excellent skin inflammation alleviation activity and a use thereof. Specifically, the present invention relates to a method for producing a papain enzyme decomposition product of a cocoon having an activity to inhibit or alleviate skin inflammation, and a cosmetic composition for alleviating skin inflammation, a health functional food, and a pharmaceutical composition for preventing or treating skin inflammation, which comprise a papain enzyme decomposition product for an ultrasonic extract of cocoon prepared by the above method as an active ingredient. The papain enzyme decomposition product of the cocoon according to the present invention has an excellent inhibitory activity of COX-2 and PGE2, which are factors causing skin inflammation, and at the same time can inhibit phosphorylation of extracellular-signal-regulated kinase (ERK). Therefore, the product can be usefully used in the manufacture of cosmetics, medicines, and health functional foods for the prevention, alleviation, or treatment of skin inflammation.
Patent KR-102189604-B1 (KR)
IPC: H01R35/04
Filed: 2019-06-11
Granted: 2020-12-11
Abstract: 전원 회로 차단 장치는 제1 커넥터 하우징, 제2 커넥터 하우징, 제2 커넥터 하우징이 제1 커넥터 하우징에 완전히 끼워지는 최종적으로 끼워진 상태에서 로크하는 주요 로크 유닛, 제2 커넥터 하우징의 일부가 제1 커넥터 하우징에 끼워지는 일시적으로 끼워진 상태에서 로크하는 서브-로크 유닛, 최종적으로 끼워진 상태 및 일시적으로 끼워진 상태에서 스위치 온 된 주요 스위치 유닛, 및 최종적으로 끼워진 상태에서 스위치 온 되고 일시적으로 끼워진 상태에서 스위치 오프 된 서브-스위치 유닛을 포함한다.  서브-로크 유닛은 제1 커넥터 하우징에서 형성된 서브-로크 클로우, 및 제2 커넥터 하우징에서 제공되고 일시적으로 끼워진 상태에서 서브-로크 클로우와 계합된 계합 판부를 가지는 조작부를 포함한다.
Patent KR-102340247-B1 (KR)
IPC: A23L19/00
Filed: 2019-06-11
Granted: 2021-12-20
Abstract: 본 발명은 진세노사이드 함량 또는 항산화 활성이 증가된 인삼 열매 또는 이의 가공물의 제조방법에 관한 것이다.  본 발명은 인삼 열매의 주요 유익성분 별로 수율을 극대화할 수 있는 최적의 수확시기에 대한 정보를 제공함으로써 목적하는 성분 또는 사용하고자 하는 용도에 따른 맞춤형 제조방법을 제공함으로써, 고가 작물인 인삼의 경제적 가치를 극대화시킬 수 있다.
Patent KR-102270166-B1 (KR)
IPC: A45D44/22
Filed: 2019-06-13
Granted: 2021-06-28
Abstract: 본 발명은 사용자의 머리에 씌워져 사용자의 머리에 고정되는 헤어밴드와 상기 헤어밴드의 외측 면에 돌출되어 형성되는 걸림돌기를 포함하는 헤어밴드부, 사용자의 턱밑 부위 및 턱선 주변의 얼굴면에 밀착될 수 있는 탄성 재질의 리프팅 벨트와 상기 리프팅 벨트의 일면에는 제어신호에 따라 진동을 전달할 수 있는 진동체 및 상기 걸림돌기에 걸리도록 양측단의 일면을 관통하여 형성되는 걸림고리를 포함하는 벨트부, 상기 진동체와 전기적으로 연결되어 상기 진동체에 제어신호를 전달하는 제어부를 포함하는, 진동벨트를 제공한다.
Patent KR-102018903-B1 (KR)
Title: Test Plug with Preventing Apparatus Overvoltage
Inventor: KO WON BUM
IPC: H01R13/66
Filed: 2019-07-01
Granted: 2019-09-05
Abstract: The present invention relates to a test plug having an overvoltage prevention device, which is inserted into a test terminal installed in a switchgear to inspect a device using a three-phase four-wire current transformer and is connected to a tester for inspecting the device. The test plug having an overvoltage prevention device of the present invention comprises: a test terminal insertion unit including each first conductor connected to a power supply side conductor on an upper part thereof, each second conductor connected to a load side conductor on a lower part of the first conductor, and an insulator interposed between the first and second conductors to electrically separate the power supply side conductor and the load side conductor from each other; a fixing unit body having one side end of the first and second conductors of the test terminal insertion unit fixed to one side thereof; a terminal for connection of each tester, penetrating the fixing unit body and protruding from the other side of the fixing unit body to be connected to a tester for inspecting a device; and an overvoltage sensing device including six first connection lines separately connected to a three-phase line of a power supply side and a load side, six second connection lines separately connected to a ground line of the power supply side and the load side among four lines, and overvoltage sensing units separately interposed between the first and second connection lines, short-circuiting the first and second connection lines at normal times and allowing the same to be conducted when an overvoltage is generated to prevent the opening of a secondary winding of a current transformer.
Patent KR-102050716-B1 (KR)
Title: Constant Pressure Control Apparatus and Method for Controlling thereof
Inventor: MOON KWANG JOO
IPC: G05D16/20
Filed: 2019-07-05
Granted: 2019-12-03
Abstract: Disclosed are a static pressure control apparatus and a control method thereof. The static pressure control apparatus comprises: a pressure measurement part measuring the pressure of a gas flowed in through a gas inflow part; a gas distribution part placed between the gas inflow part and a gas analysis part and distributing the gas flowed in through the gas inflow part to the gas analysis part; and a static pressure control part comparing a preset pressure and the pressure measured in the pressure measurement part to adjust the pressure of the gas distribution part according to the comparison result, thereby controlling a gas analyzer to sample at constant atmospheric pressure by maintaining constant atmospheric pressure even at ground atmospheric pressure.
Patent KR-102137362-B1 (KR)
Title: Pallet reversal dedicated system with carbide insert
Inventor: SONG IL JAE
IPC: B65G21/12
Filed: 2019-07-10
Granted: 2020-07-23
Abstract: The present invention relates to an exclusive system for reversing a pallet, loaded with a carbide insert product, 180 degrees. The system comprises: a transfer unit including a conveyor unit installed in a straight line from a pallet supply side to a discharge side of the exclusive system and configured to transfer a pallet loaded with a carbide insert, and a pickup unit configured to stack an empty pallet on the pallet loaded with the carbide insert product or to pick up an upper pallet after reversing is completed; and a reversing unit including a rotary unit located in the middle of the transfer unit and configured to reverse the pallet in order to change the top and bottom of the carbide insert loaded on the pallet, and a clamp unit configured to support the pallet transferred to rotate in the rotary unit. Therefore, the present invention provides the exclusive pallet reversing system loaded with a carbide insert product, which is combined with or installed close to a transferring device of the carbide insert product to simultaneously reverse a large amount of carbide insert products supplied to a grinding process, a coating process and a test process, thereby increasing product productivity.
Patent KR-102193675-B1 (KR)
Inventor: YANG HAE CHOON
IPC: H01L21/673
Filed: 2019-07-10
Granted: 2020-12-21
Abstract: The present invention relates to a turntable for transporting a semiconductor package, which comprises: a pocket plate having a plurality of pocket units formed of a plurality of first and second loading portions forming different height layers on an upper surface; an upper vacuum panel coupled to a lower part of the pocket plate and configured to form a vacuum pressure on the second loading portion; a lower vacuum panel coupled to a lower part of the upper vacuum panel and connected to the first loading portion to generate a vacuum pressure in the first loading portion; and a base panel coupled to a lower surface of the lower vacuum panel and preventing leakage of a suction pressure for forming the vacuum pressure.
Patent KR-102197125-B1 (KR)
Title: 송신 장치 및 그의 신호 처리 방법
IPC: H04L1/00
Filed: 2019-07-16
Granted: 2020-12-31
Abstract: 송신 장치가 개시된다. 본 송신 장치는 LDPC 부호화를 수행하여 LDPC 부호어를 생성하는 부호화부, LDPC 부호어를 인터리빙하는 인터리버 및 인터리빙된 LDPC 부호어를 변조 심볼에 맵핑하는 변조부를 포함하며, 변조부는, LDPC 부호어를 구성하는 복수의 그룹 중 기설정된 그룹에 포함된 비트를 변조 심볼 내의 기설정된 비트에 맵핑한다.
Patent KR-102163341-B1 (KR)
Title: Phase-change random access memory device and method for manufacturing thereof
Inventor: JEON WOO JIN
IPC: H01L45/00
Filed: 2019-07-18
Granted: 2020-10-08
Abstract: The present invention relates to a phase-change memory element having a vertical stacked structure which improves element performance, and a manufacturing method thereof. According to an embodiment of the present invention, the phase-change memory element comprises: at least one lower electrode formed in a horizontal direction; at least one upper electrode formed in a direction parallel to the lower electrode; an insulating layer interposed between the lower electrode and the upper electrode; and a phase-change material formed in a vertical direction inside a structure in which the lower electrode, the insulating layer, and the upper electrode are stacked.
Patent KR-102240960-B1 (KR)
Title: 로또 게임볼 추출장치
IPC: A63F3/06
Filed: 2019-08-02
Granted: 2021-04-15
Abstract: 본 발명은 로또 게임볼 추출장치는 게임볼들의 혼합이 원할하고 게임볼들중 하나의 게임볼 선택이 신속적이고 안정적으로 이루어져 추첨시간이 단축될 수 있도록 하며, 외부의 이물질이 수용함으로 진입되는 것을 방지하여 수용함의 오염을 방지할 수 있도록 한다.
Patent KR-102269101-B1 (KR)
IPC: E04G21/22
Filed: 2019-08-13
Granted: 2021-06-24
Abstract: 다양한 실시예들에 따른 케이블 구동 자동 조적 방법 및 시스템은, 입력되는 3차원 조적 모델로부터 조적 정보를 생성하고, 조적 상태를 모니터링하면서, 조적 정보를 기반으로 복수 개의 벽돌 들에 대한 자동 조적을 수행하도록 구성될 수 있다. 다양한 실시예들에 따르면, 시공 장치가 적어도 하나의 벽돌을 픽업하여, 정해진 위치로 이동 케이블을 따라 이동하고, 정해진 위치에서, 벽돌을 내려 놓을 수 있다.
Patent KR-102214113-B1 (KR)
Title: Tensioning jack and cable tensioner having the same
Inventor: LEE GWANG JAE
IPC: E02D5/80
Filed: 2019-08-20
Granted: 2021-02-10
Abstract: A tension jack according to an embodiment of the present invention comprises a cylinder and a piston. The cylinder includes: an inner tube which has a tubular structure with front and rear ends open, and has a cable passing therethrough; an outer tube disposed around the inner tube to form an accommodation space between the inner tube and the outer tube; a first fixed block and a second fixed block respectively mounted on the front end and the rear end of the outer tube to introduce and discharge hydraulic pressure into and from of the accommodation space. The piston is accommodated in the accommodating space and reciprocates back and forth by the hydraulic pressure flowing into and out of the accommodating space, such that the end protrudes and returns to the outside of the second fixed block from the rear end of the inner tube. The outer tube includes a first body forming the inner surface of the outer tube and a second body made of a material lighter than the first body and forming the outer surface of the outer tube. The second body can have a structure of surrounding the first body.