baber/WOPTO huggingface dataset:
Patent KR-20190104201-A (KR)
Title: 유체 필터의 제조방법
Inventor: SALSBUREY SCOTT ALLEN
IPC: B33Y80/00
Filed: 2017-12-22
Abstract: 본 발명은 필터의 제조 방법을 제공하는 것으로서, 필터는 다공성 여과재 및 플라스틱 지지 구조체로 형성된 필터 본체를 포함한다. 필터의 제조 방법은 지지 구조체의 제1부분을 형성하는 제1 적층 가공 단계; 지지 구조체의 제1부분 상에 접촉하여 또는 그 위에 이격하여 다공성 여과재를 위치시키는 단계; 및 지지 구조체의 제1부분의 연속부로서 지지 구조체의 제2부분을 형성하는 제2 적층 가공 단계; 를 포함한다. 또한, 다공성 여과재의 제 1 부분을 다공성 여과재의 제 2 부분과 겹치도록 위치시킴으로써 필터 본체를 둘러쌀 수 있으며, 다공성 여과재의 제 1 부분과 다공성 여과재의 제 2 부분을 이음새에서 연결시켜 필터 본체 내에 포켓을 형성할 수 있고, 지지 구조체는 다공성 여과재의 제 1 부분 및 다공성 여과재의 제 2 부분 사이의 간격을 유지하도록 구성된다.
Patent KR-20190103362-A (KR)
Title: 타겟 대상 디스플레이 방법 및 장치
Inventor: DONG MAOFEI
IPC: H04N21/431
Filed: 2018-01-10
Abstract: 본원 발명의 실시예는 타겟 대상 디스플레이 방법 및 장치를 제공한다. 상기 타겟 대상 디스플레이 방법에서, 제1 디스플레이 영역에 디스플레이되기 위한 복수의 비디오 데이터에 기설정된 타입의 타겟 대상을 포함하는 타겟 비디오 프레임이 존재하는 지의 여부를 모니터링하고 존재하는 것으로 모니터링되면, 현재 모니터링된 타겟 비디오 프레임에서 상기 기설정된 타입의 타겟 대상을 추출하고 추출된 타겟 대상을 제2 디스플레이 영역의 서브 영역에 디스플레이하되, 상기 제2 디스플레이 영역은 상기 제1 디스플레이 영역과 상이하고, 하나의 타겟 대상은 하나의 서브 영역에 대응된다. 본원 발명의 실시예에서는 사용자가 주목하는 타겟 대상을 화면에서 추출하여 디스플레이함으로써 사용자가 살펴볼 때의 편의성을 향상시킨다.
Patent KR-20190135470-A (KR)
Title: 방사능 상해 방지 및 조직 재생 촉진을 위한 조성물 및 방법
Inventor: GHATNEKAR GAUTAM
IPC: A61K38/17
Filed: 2018-02-16
Abstract: 상해 위험이 있는 대상의 방사선 상해를 치료 또는 예방하는 데 사용하기 위한 조성물 및 방법이 본 발명에 제공된다.
Patent KR-20190109476-A (KR)
Title: 비디오 인코딩 방법, 장치, 및 디바이스, 및 저장 매체
Inventor: GUO YAOYAO
IPC: H04N19/59
Filed: 2018-05-18
Abstract: 멀티미디어 기술의 분야에 속하는, 비디오 인코딩 방법, 장치, 및 디바이스, 및 저장 매체가 개시되어 있다.  이 방법은: 슬라이딩 윈도에 따라 비디오의 이미지 프레임 시퀀스 상의 N개의 이미지 프레임을 결정하는 단계; 상기 슬라이딩 윈도 내의 각각의 이미지 프레임의 모션 진폭 차이 값을 취득하는 단계; 상기 슬라이딩 윈도 내의 각각의 이미지 프레임의 모션 진폭 차이 값에 따라 정적 변수를 업데이트하는 단계 - 상기 정적 변수는 결정된 연속적인 정적 이미지 프레임들의 수를 지시하는 데 사용됨 -; 상기 업데이트된 정적 변수가 제1 사전설정된 임계치 이상일 때, 인코딩될 이미지 프레임을 I-프레임으로 인코딩하는 단계를 포함한다.  본 출원은 비디오가 장시간 동안 정적 장면에 있는지를 결정하기 위한 방법을 제공하고, 비디오가 장시간 동안 정적 장면에 있다고 결정될 때 비디오가 I-프레임으로 인코딩되고, 이로써 너무 많은 P-프레임의 삽입을 피하여, 인코딩의 품질을 개선할 뿐만 아니라, 인코딩의 효율도 개선한다.
Patent KR-20190112764-A (KR)
Title: 회전자, 전동기, 압축기, 송풍기, 및 공기조화 장치
Inventor: YABE KOJI
IPC: F24F1/38
Filed: 2017-03-27
Abstract: 회전자는, 축선을 중심으로 하는 환형상의 내주와, 그 지름방향 외측에 위치하는 외주를 가지며, 전자강판으로 구성된 회전자 철심을 구비한다. 회전자 철심은, 외주에 따라, 둘레방향으로 이웃하는 제1의 자석 삽입구멍과 제2의 자석 삽입구멍을 가지며, 내주에 따라, 둘레방향으로 이웃하는 제1의 슬릿과 제2의 슬릿을 갖는다. 제1의 슬릿은, 제2의 슬릿에 대향하는 제1의 대향부를 가지며, 제2의 슬릿은, 제1의 슬릿에 대향하는 제2의 대향부를 갖는다. 제1의 대향부는, 지름방향 내측의 단부에 제1의 내측단부를 가지며, 지름방향 외측의 단부에 제1의 외측단부를 가지며, 제2의 대향부는, 지름방향 내측의 단부에 제2의 내측단부를 가지며, 지름방향 외측의 단부에 제2의 외측단부를 갖는다. 회전자 철심은, 제1의 대향부와 제2의 대향부 사이에, 제1의 내측단부와 제2의 내주부를 잇는 제1의 직선과, 제1의 외측단부와 제2의 외측단부를 잇는 제2의 직선으로 규정되는 슬릿간부를 갖는다. 슬릿간부는, 제1의 자석 삽입구멍과 제2의 자석 삽입구멍 사이의 극간부에 대해 지름방향 내측에 배치된다. 회전자 철심의 내주부터 제1의 슬릿 및 제2의 슬릿까지의 지름방향의 최소거리를 D1로 하고, 제1의 슬릿 및 제2의 슬릿의 지름방향의 최소폭을 W1로 하고, 슬릿간부의 지름방향의 길이를 W2로 하면, D1<W1 및 D1<W2의 적어도 일방이 성립한다.
Patent KR-20190117645-A (KR)
Title: 콤팩트한 모듈형 무선 센서
Inventor: PHILLIPS JAMES
IPC: H04B5/00
Filed: 2018-02-16
Abstract: 무선 센서 조립체는 하우징과, 무선 전원과, 및 전자구성부를 포함한다. 하우징은 내부 공간과 적어도 하나의 외부 센서를 수납할 크기의 적어도 하나의 구멍을 형성한다. 무선 전원이 하우징 내부에 장착된다. 전자구성부는 하우징 내부에 장착되어 무선 전원으로부터 전력을 받아 외부 센서와 전기적 통신을 하도록 구성된다. 전자구성부는 무선 통신 부품과, 무선 통신 부품이 0.5 mW 미만의 전력 소비량을 가지도록 무선 통신 부품으로부터 외부 장치로의 데이터 전송 속도를 관리하도록 구성된다. 전자구성부는 전적으로 무선 전원으로만 급전되고, 무선 센서 조립체는 약 2 in 3  미만의 용적을 차지한다.
Patent KR-20190130587-A (KR)
Title: 편광판, 화상 표시 장치 및 해당 화상 표시 장치의 제조 방법
Inventor: GOTO SHUSAKU
IPC: G02B5/30
Filed: 2018-04-03
Abstract: 가습 환경 하에서도 우수한 광학 특성을 유지할 수 있는 편광판이 제공된다. 본 발명의 편광판은, 요오드를 포함하는 폴리비닐알코올계 수지 필름으로 구성된 편광막과, 편광막의 적어도 한쪽 측에 배치된 보호 필름을 구비한다. 보호 필름은, 편광막의 주위 단면을 덮고 이 보호 필름의 투습도는 300g/㎡/24hr 이하이다. 하나의 실시형태에서는, 본 발명의 편광판은 85℃ 및 85% RH 환경 하에서 120시간 유지한 후의 색빠짐 양이 100㎛ 이하이다.
Patent KR-20190134773-A (KR)
Title: 중력 하에서 액체 상태가 유동하는 장치에서 특히 사용되는 액체 이중 분배 디바이스.
Inventor: DUPARC BERTRAND
IPC: B01D3/00
Filed: 2018-03-29
Abstract: 본 발명은 적어도 2 개의 종 방향 액체 하향류 덕트(5, 6)를 통해 매니폴드 지지부(7)에 연결된 높은 수집기 트레이(2)를 포함하는 분별 또는 세척 칼럼(10)에 사용하기에 적합한 이중 액체 분배 디바이스(1)에 관한 것이고, 상기 매니폴드 지지부(7)는 적어도 2개의 시리즈의 횡 방향 튜브형 매니폴드(8,8a-8b)를 지지하고 제1종방향 덕트(5)를 통해 제1 시리즈의 매니폴드(8a) 및 제2 종방향 덕트(6)를 통해 제2 시리즈의 매니폴드(8b)에 각각 액체를 공급하는 역할을 하고, 각각의 매니폴드(8, 8a-8b)는 패킹 베드(9)의 상부 면에 액체를 분배하기에 적합한 하부 면 내 분배 오리피스를 포함하고, 디바이스는 2개의 종방향 액체 하향류 덕트(5, 6)는 액체가 제어된 방식으로 2개의 종방향 덕트 사이에 전달될 수 있도록 제어된 개구를 갖는 밸브(12)가 장착된 통신 장치(11)에 의해 하부 부분(5b, 6b)으로 함께 연결되는 것을 특징으로 한다.
Patent KR-20190143482-A (KR)
Inventor: NAKATSUKA TAKESHI
IPC: H01L51/56
Filed: 2011-03-14
Abstract: 본 발명은, 유기 전계 발광 소자의 유기층을 습식 성막법에 의해 형성하는 데에 있어서, 글로브 박스 등의 장치를 사용하여 질소 치환을 실시하는 등의 특별한 환경 제어를 필요로 하지 않고 성막 중의 열화를 방지하고, 저렴한 제조 비용으로, 고효율이고, 구동 수명이 긴 유기 전계 발광 소자를 제공하는 것을 목적으로 한다.     본 발명은, 유기 전계 발광 소자의 양극과 음극 사이의 유기층을, 유기 전계 발광 소자 재료 및 용제를 함유하는 조성물을 사용하여, 이하의 성막 환경 1 ∼ 3 중 어느 환경하에서 습식 성막법에 의해 성막한 후 건조시키는 공정을 포함하는 유기 전계 발광 소자의 제조 방법에 관한 것이다. 
성막 환경 1：이산화탄소 농도 0.7 g/㎥ 이하이고 산소 농도 18 ∼ 22 체적％  
성막 환경 2：황 산화물 농도 2.2 ㎍/㎥ 이하이고 산소 농도 18 ∼ 22 체적％  
성막 환경 3：질소 산화물 농도 3.1 ㎍/㎥ 이하이고 산소 농도 18 ∼ 22 체적％
Patent KR-20210088361-A (KR)
Title: Method for Preparing Silicon Nitride Sintered Body and The Silicon Nitride Sintered Body Prepared by The Same
Inventor: KIM DO KYUNG
IPC: C04B35/626
Filed: 2020-01-06
Abstract: The present invention relates to a method for manufacturing a silicon nitride sintered body which comprises a step of thermally treating raw material powder which is prepared by mixing silicon nitride powder and an oxide-based sintering aid; and a step of sintering a resultant undergone the step of thermal treatment, wherein the resultant undergone the step of thermal treatment comprises 70 to 90 parts by weight of α-silicon nitride and 10 to 30 parts by weight of β-silicon nitride; and a silicon nitride sintered body manufactured thereby. According to the present invention, a silicon nitride sintered body having high intensity can be manufactured.
Patent KR-20200094643-A (KR)
Inventor: KIM KYE HYEON
IPC: G06N3/04
Filed: 2020-01-06
Abstract: A training method for calculating a collision probability to be used to determine whether a driving mode change of a vehicle capable of autonomous driving is appropriate by analyzing a recent driving route of a driver comprises the following steps of: (a) performing, by a training device, (i) a process of allowing a state network to generate a state feature map and (ii) a process of allowing a trajectory network to generate a trajectory feature map, when a state vector and a trajectory vector are obtained; (b) allowing, by the training device, a safety network to calculate a predicted collision probability, which is a predicted probability that an accident may occur; and (c) training, by the training device, at least a part of parameters by allowing a loss layer to generate a loss by referring to the predicted collision probability and an acquired ground truth (GT) collision probability.
Patent KR-20210088815-A (KR)
Title: Alarm Valve Assembly
Inventor: CHO MIN SEON
IPC: A62C37/50
Filed: 2020-01-07
Abstract: The present invention relates to an alarm valve assembly, which can dramatically reduce the likelihood of a malfunction, comprising: a valve body (10); a shaft member (20); a disk (30) for selectively opening and closing a passage (13); a pressure spring (40) including a winding unit (41), a disk connection unit (42), and a body connection unit (43); a bolt member (50) fastened to a bolt installation hole (14a); and a check valve (60).
Patent KR-20210089903-A (KR)
Title: One Time Passcode Door Lock System
Inventor: SON JI WOO
IPC: G07C9/20
Filed: 2020-01-09
Abstract: The present invention relates to a door opening/closing device wherein a password is automatically changed according to time. More specifically, the present invention relates to a method wherein a clock or a timer is embedded in the door opening/closing device and allows the password to open the door to be changed according to the relevant time or the elapsed time when a time elapses, and the changed password is checked through a smartphone application or a small terminal similar to that of a one time passcode (OTP) for security of a bank, thereby allowing an authorized user to input the changed password and allowing access to be possible.
Patent KR-20210097264-A (KR)
Title: (Reinforcement learning-based recommendation system for job matching of person with experience and method using the same
Inventor: YOUM SEKYOUNG
IPC: G06Q10/06
Filed: 2020-01-29
Abstract: The present invention provides a reinforcement learning-based experienced person expertise capability recommendation method which efficiently extracts job seekers to provide matching information. The reinforcement learning-based experienced person expertise capability recommendation method comprises: a step in which a recommendation system server receives hiring requirement information including expertise capability requirement information from a company through a company hiring application using the internet; a step in which the recommendation system server receives experienced person job-seeking information including expertise capability input information through an experienced person job-seeking application using the internet; a step in which the recommendation system server selects experienced persons satisfying a basic condition required by a first company from the experienced person job-seeking information to extract an experienced person group; a step in which the recommendation system server performs a reinforcement learning-based expertise capability recommendation method on the extracted experienced person group to extract an expert experienced person group in accordance with expertise capability similarity; a step in which the recommendation system server extracts an experienced person list for recommendation from the expert experienced person group; and a step of providing the experienced person list for recommendation for the first company and providing job-seeking information for the first company.
Patent KR-20210097452-A (KR)
Title: Pulse radar apparatus and operating method thereof
Inventor: PIL JAE PARK
IPC: G01S7/41
Filed: 2020-01-30
Abstract: The present invention relates to a pulse radar device for detecting a position and movement of a target and an operation method thereof. In accordance with an embodiment of the present invention, the pulse radar device includes: a clock signal generation part outputting a transmission clock signal and a reception clock signal; a transmission part generating a first signal based on the transmission clock signal; a reception part receiving an echo signal corresponding to the first signal and receiving the reception clock signal to generate a second signal based on the echo signal and the reception clock signal; and a signal processing part converting the second signal into a digital signal, and analyzing the digital signal. The clock signal generation part controls an inter-transmission/reception-clock delay between the transmission clock signal and the reception clock signal, and generates a synchronization signal indicating a variation of the inter-transmission/reception-clock delay. The signal processing part converts the synchronization signal into a representative value, and analyzes the second signal using the representative value. The representative value uses a cumulative sum of the digital signal in a synchronization signal generation section or an average value of the digital signal in the synchronization signal generation section. Therefore, the present invention is capable of improving the performance of the pulse radar device by improving a signal-to-noise ratio.
Patent KR-20210098284-A (KR)
Title: System, server, uer terminal apparatus and contorl method of server for using small business cafe
Inventor: JUNG EUI SANG
IPC: G06Q50/12
Filed: 2020-01-31
Abstract: Disclosed are a system, server, control method of the server, and user terminal device for using a small business cafe. An objective of the present invention is to efficiently use a small business cafe. In accordance with the present invention, the server for using a small business cafe comprises: a communication unit; a storage unit storing gathering-related event information for a plurality of member cafes; and a processor generating a cafe gathering list for at least one cafe having a gathering to participate in based on the event information for the plurality of cafes stored in the storage unit when a gathering search request is received from a user terminal device, transmitting the generated cafe gathering list to the user terminal device, and controlling the communication unit to transmit attending notification information of a user to an operator terminal device of a cafe corresponding to a received attending request when the attending request is received from the user terminal device. The event information includes at least one among the type of gathering, schedule of gathering, and review of the gathering.
Patent KR-20210098720-A (KR)
Title: Ammonia Tuning Method of Selective Catalytic Reduction Equipment
Inventor: LEE BUM JHE
IPC: F23J15/00
Filed: 2020-02-03
Abstract: The present invention relates to an ammonia tuning method for selective catalytic reduction (SCR) equipment and, more specifically, to an ammonia tuning method for improving the performance of SCR equipment of DeNOx systems used in thermal power plants, combined cycle power plants, and industrial boilers. According to an embodiment of the present invention, an ammonia tuning method for SCR equipment comprises the steps of: (a) measuring and analyzing gas in the ammonia injection grid (AIG) front-end gas measuring unit and catalyst layer rear-end gas measuring unit of a NH_3-SCR equipment; (b) determining whether the gas is suitable based on the results of analysis of the catalyst layer rear-end gas measuring unit; and (c) calculating an ammonia injection amount based on the results of analysis of the AIG front-end gas measuring unit when it is determined that the gas is unsuitable in step (b), and operating an ammonia injection valve.
Patent KR-20210101427-A (KR)
Title: Liquefied Gas Operation System for Vessel Having Multi-Purpose Lashing Bridge
Inventor: CHO MIN KYU
IPC: F17C9/00
Filed: 2020-02-10
Abstract: According to an embodiment of the present invention, provided is a liquefied gas operating system for ships, which is applied on a ship and comprises: a main LNG tank containing liquefied gas; a plurality of ISO tank containers which are connected in parallel with respect to the main LNG tank to receive and receive the liquefied gas accommodated in the main LNG tank in a divided manner; and a multi-purpose lashing bridge which is provided to support the plurality of ISO tank containers and performs filling of liquefied gas from the main LNG tank to the plurality of ISO tank containers.
Patent KR-20210101496-A (KR)
Title: Method for communication based on state of external electronic apparatus and electronic appratus thereof
Inventor: KANG SEUNGSEOK
IPC: H04B1/401
Filed: 2020-02-10
Abstract: Various embodiments disclose an electronic device including: a first communication circuit; a second communication circuit for supporting a wireless protocol that is different from a wireless protocol supported by the first communication circuit; a display; a processor operatively connected to the first communication circuit, the second communication circuit, and the display; and a memory. The processor is configured to: identify at least one external electronic device by using the first communication circuit; transmit a state change request for transitioning a first external electronic device to a first state to the first external electronic device when state change information indicating that the first external electronic device has been transitioned from the first state to a second state that consumes a lower power than the first state before transmission of data to the first external electronic device among the at least one external electronic device is received; and transmit the data to the first external electronic device by using the second communication circuit after transmitting the state change request. Accordingly, a transmission failure is prevented.
Patent KR-20200105407-A (KR)
Title: Color conversion composition, color conversion film comprising same, backlight unit and display apparatus
Inventor: LEE MILIM
IPC: G02F1/1335
Filed: 2020-02-17
Abstract: The present specification relates to a color conversion composition comprising a compound represented by chemical formula 1 and a compound represented by chemical formula 2 in a molar ratio of 1 : 1 to 5 : 1, a color conversion film containing the same, a backlight unit, and a display device.
Patent KR-20210104443-A (KR)
Title: Method and apparatus for mananging resource for communication service
Inventor: OK KI SANG
IPC: H04W28/02
Filed: 2020-02-17
Abstract: The present invention relates to a resource management method and device for controlling a radio resource of a mobile communication network to guarantee premium service quality when congestion for a premium service occurs in a specific area. According to an embodiment of the present invention, the method for managing a resource allocated to basic service and premium service in a resource management device comprises the following steps of: collecting network information occurring in an area that provides the premium service; determining whether a state of the premium service is a congested state by analyzing the network information; and recovering a portion of the resource allocated to the basic service in the area, and allocating a portion of the recovered resource to the premium service, if the premium service is in a congested state.
Patent KR-20210105097-A (KR)
Title: Method and system for providing virtual reality space
Inventor: SONG CHANG EUN
IPC: G06F3/01
Filed: 2020-02-18
Abstract: Disclosed are a method for providing virtual reality space and a system thereof. According to an embodiment of the present invention, a virtual reality space-providing system includes at least one processor implemented to execute computer-readable instructions. And the at least one processor includes: a space providing unit that provides a virtual reality space accessible to a plurality of users to each terminal of the plurality of users; and an object providing unit for providing an object that can be shared and used by the plurality of users in real time in the virtual reality space to a terminal of each of the plurality of users.
Patent KR-20210106277-A (KR)
Inventor: JUN JAE WOO
IPC: H04M1/02
Filed: 2020-02-20
Abstract: A camera module according to one embodiment of the present invention includes: a base plate; and a plurality of cameras spaced apart from each other. Some cameras among the plurality of cameras are fixedly arranged on the base plate. The remaining cameras among the plurality of cameras are disposed on the base plate to be movable. The remaining cameras may be configured to be rotated based on some cameras.
Patent KR-20210060288-A (KR)
Inventor: CHIANG YEN TING
IPC: H01L27/146
Filed: 2020-02-28
Abstract: A problem for reducing noise in an image sensing device, particularly an NIR detector, is solved by providing a ground connection unit to a reflector. The reflector may be grounded through a via that couples the reflector to a grounded region of a substrate. The grounded region of the substrate may be a P+ doped region formed proximate to a surface of the substrate. In particular, the P+ doped region may be a part of a photodiode. Alternatively, the reflector may be grounded through a metal interconnect structure formed over a front surface of the substrate.
Patent KR-20210112939-A (KR)
Title: Electroluminescent device, and display device comprising thereof
Inventor: CHUNG DAE YOUNG
IPC: H01L51/00
Filed: 2020-03-06
Abstract: An electroluminescent element and a display device including the same are provided. The electroluminescent element includes: a first electrode and a second electrode facing each other; a light emitting layer disposed between the first electrode and the second electrode and including a quantum dot and a first hole transport material having a substituted or unsubstituted C4 to C20 alkyl group in a side chain; a hole transport layer disposed between the light emitting layer and the first electrode and including a second hole transport material; and an electron transport layer disposed between the light emitting layer and the second electrode.
Patent KR-20210114145-A (KR)
Title: Seawater desalination system using capacitive deionization electrode
Inventor: KANG WEE KWAN
IPC: C02F9/00
Filed: 2020-03-10
Abstract: The present invention relates to a seawater desalination system which performs comprises: a water intake step of intaking seawater; a pretreatment step of removing impurities contained in the intake seawater; a reverse osmosis step of treating the pretreated seawater with a reverse osmosis device; a pH control step of adjusting the pH of the treated water generated through the reverse osmosis step; and a capacitive deionization (CDI) treatment step of treating the pH-adjusted treated water by using a CDI device equipped with an ion exchange membrane. According to the present invention, since monovalent ions are selectively removed by the ion exchange membrane, the concentration of salt contained in seawater is decreased and, at the same time, the concentration of divalent cations is maintained, thereby producing edible water without a separate re-mineralization step.
Patent KR-20210114195-A (KR)
Title: Leakage sensing apparatus of sprinkler system and method of operation in the leakage sensing apparatus
Inventor: LIM KWANG HOON
IPC: G01N3/02
Filed: 2020-03-10
Abstract: The present invention relates to a leakage detection device for a sprinkler system and an operation method of the leakage detection device. A wet pipe sprinkler system of the present invention detects an occurrence of leaks in a piping part or sprinkler head in advance and takes follow-up measures when a leak occurs, follow-up measures, for example, to avoid huge losses caused by waterlogged expensive semiconductor manufacturing equipment in a clean room for manufacturing semiconductor devices. In addition, the wet pipe sprinkler system of the present invention monitors whether a leak occurs from the piping part or sprinkler head in real time beforehand, and promptly takes follow-up measures in case of leakage, which are done automatically as well as manually. Therefore, measures to cut off and discharge water can be made very quickly. Moreover, in the event of a fire, if a leakage detection sensor unit is separated from a mounting protection net before the sprinkler head is operated, it is possible to effectively prevent the leakage detection sensor unit from dropping and being damaged by a wire connected between a clamp and the leakage detection sensor unit.
Patent KR-20210119038-A (KR)
Title: Chain tension control apparatus for power transmission
Inventor: JUNG KYU CHUL
IPC: F16H7/08
Filed: 2020-03-24
Abstract: The present invention relates to a tension control device of a chain for power transmission, which connects a driving sprocket and a driven sprocket with a chain, prevents the chain from sagging in the process of transmitting power through the chain, and specifically is made to be elastically adjusted depending on the degree of sag in the chain, so stable and efficient power transmission can be achieved. The present invention is to install a fixed shaft having a screw part formed on a fixed plate, rotatably install an elastic adjustment body including a ratchet wheel on the fixed shaft, make the ratchet wheel engage with a ratchet set on the fixed plate, insert and install a biasing spring and an elastic adjustment lever in the fixed shaft passing through the elastic adjustment body in turn and fix the same by a fixing nut, insert and fix an inner bent part of the biasing spring to one side of the elastic adjustment body, install and fix an outer bent part to the elastic adjustment lever to transmit a biasing power of the biasing spring to the elastic adjustment lever by the rotation of the elastic adjustment body, and install a sprocket at an end part of the elastic adjustment lever to bias the chain and maintain proper tension.