baber/WOPTO huggingface dataset:
Patent KR-20030041035-A (KR)
Title: parking management system
Inventor: JOUNG YEON HO
IPC: G08G1/14
Filed: 2001-11-19
Abstract: PURPOSE: A parking managing system is provided to judge a parking state and an empty state using a natural light and make a driver confirm an empty parking space at an entrance of a parking lot. CONSTITUTION: A lighting part(1) provides a reference lighting to each parking space by selectively composing an artificial light source and a light collector for collecting a natural light. A vehicle sensor part(3) takes a picture of a vehicle placed at each parking space and an empty space and outputs an electric image signal. A central processing unit(5) stores the image signal from the vehicle sensor part in an inner memory and judges whether a vehicle exists at a parking space using an algorithm for recognizing a variation degree of a pixel unit corresponding to the image signal. A database(6) stores a judgement result according to each parking space. An output part(8) marks parking data stored in the database at a mapped parking space as parking existence and prints with parking related data.
Patent KR-20030041341-A (KR)
Title: a mud guard for a vehicle
Inventor: SONG BU GEUN
IPC: B62D25/18
Filed: 2001-11-19
Abstract: PURPOSE: A mudguard device for a vehicle is provided to not have a weld process and to suppress a crack by absorbing vibration, using a mounting beam. CONSTITUTION: A mudguard device including a mudguard(2) to prevent mud is installed to the rear part of a wheel of a vehicle body. The mudguard is fixed to a mounting beam(5) of a coil type and is combined with the vehicle body. The mounting beam is combined with the vehicle body as a coil type, without welding, and the mounting beam absorbs vibration, using the elastic force. Accordingly, rise of the manufacturing cost by welding work is prevented, and a crack by vibration is prevented.
Patent KR-20010110275-A (KR)
Title: 차량 타이어용 보강 타이어
Inventor: LEE JE JUNG
Filed: 2001-11-21
Abstract: 폐타이어를 이용하여 이륜이나 사륜차량의 타이어를 보강하기위한 보강 타이어를 제공코저하는 것으로서, 특히 타이어의 내측 림 삽입부인 프렌지(6)의 둘레에 다수개의 절개부(3)(3')...(3 n )를 형성하고 그 사이사이에 다수개의 체결공(2)을 천설하여 그 체결공에 볼트(4)와 너트(5)를 체결할 수 있게한 것으로 구성된 보강 타이어로서, 이와같은 보강 타이어는 기존 타이어의 크기에 따라 절곡하면 절개부(3)(3')...(3 n )에 의해 쉽게 절곡되게되고 그렇게 절곡되는 보강 타이어로 타이어 본체의 표면을 감싼후 볼트(4)와 너트(5)로 체결하거나 밴드를 끼워서 체결하면 타이어 본체를 보호하게되어 펑크나 훼손 및 마모가 적게되고 보강 타이어가 펑크, 훼손 또는 마모되었을 때는 그 보강 타이어만 교체하면 타이어 본체는 반영구적으로 사용가능한 특징이 있는 것이다.
Patent KR-20030048187-A (KR)
Title: Wireless telecommunication system and control-method using wireless mobile telecommunication module
Inventor: CHO YANG HYEON
IPC: H04W4/12
Filed: 2001-12-11
Abstract: PURPOSE: A wireless communication system using a wireless mobile communication terminal and a control method therefor are provided to wirelessly transmit messages without using a wired Internet network, in order to remarkably reduce a system construction period as reducing access time, thereby having excellent security by constructing individual communication networks for users. CONSTITUTION: A client PC(1) instructs business matters to onsite personnel, and receives business transaction results. A database(4) stores the instructed business matters and the business transaction results. An operating server(2) converts the business matters transmitted from the client PC(1) into a transmission message, transmits contents of a receiving message about the results to the client PC(1), and transmits information of a transceiving message to the database(4). An application system(3) has a system for supporting the operating server(2). A transceiving controller(5) receives the transmission message, transmits the receiving message, and transceives the messages.
Patent KR-20030048837-A (KR)
Title: Coupling structure of manhole for power lines manufactured by using precast concrete
Inventor: KIM IK BAE
IPC: E01F5/00
Filed: 2001-12-13
Abstract: PURPOSE: A connection of a precast concrete-made manhole is provided to make the connection between manholes strong and prevent the manhole from being deformed by any external impact, moreover to improve waterproof effect against underground water. CONSTITUTION: The connection of a precast concrete-made manhole is composed of: assembling precast concrete-made base plates; making holes(26) used to connect steel wires; manufacturing a shear key with a loop bar imbedded; inserting a reinforcing bar into the hole of each crossed loop bar; fixing a steel wire to lateral wall of a manhole and passing the steel wire all the way through steel wire holes then fixing the wire to the lateral wall of the opposite manhole; placing mortar into a mortar access groove to fix the loop bars connected by reinforcing bars; applying water seal to the border of each manhole; coating outer walls of manholes with waterproof sheet.
Patent KR-20030049253-A (KR)
Title: The compositons of coating for automotive glassrun
Inventor: SONG YU CHANG
IPC: C09D183/04
Filed: 2001-12-14
Abstract: PURPOSE: A composition of resin for coating automotive glassrun is provided, thereby lowering friction of the glassrun rubber and improving the wear resistance thereof. CONSTITUTION: A composition of resin for coating automotive glassrun contains 50 to 250 parts by weight of at least one solid lubricating agent having particle diameter of 1 to 20 micron selected from MoS2, polytetraproethylene and graphite and 5 to 50 parts by weight of silicone based on 100 parts by weight of resin, wherein the resin component is selected from thermoplastic polyurethane resin, polyester polyol resin, polyester resin and silicone resin.
Patent KR-20030050234-A (KR)
Title: Fuel sender structure in vehicle
Inventor: SUNG YEON GWAN
IPC: G01F23/30
Filed: 2001-12-18
Abstract: PURPOSE: A fuel sender structure for a vehicle is provided to prevent a mis-indicating of a fuel gauge due to a connection between terminals by removing a foreign materials by means of a movement of a move terminal. CONSTITUTION: A fuel sender structure for a vehicle is composed of a move plate(3), a base plate(5), and a brush(7). A floater is provided with one end of a lever(2), and the move plate(3) is provided with other end of the lever(2). The move plate(3) is hinge connected at the base plate(5) to move in a pendulum movement together with the floater. The brush(7) is contacted from the move plate(3) to the base plate(5) to remove a foreign material penetrated between a resistance generating terminals.
Patent KR-20030050358-A (KR)
Title: Method for fabricating of semiconductor device
Inventor: CHA HAN SEOP
IPC: H01L21/265
Filed: 2001-12-18
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to embody low resistance and excellent thermal stability by increasing an area of a gate through a selective epitaxial growth(SEG) process performed before a salicide process. CONSTITUTION: A gate electrode(22) is formed on a semiconductor substrate(21). A low density impurity region(23) is formed in the surface of the semiconductor substrate at both sides of the gate electrode. The first and second gate sidewalls(24,25) are formed on both side surfaces of the gate electrode, overlapping each other. Source/drain ions are implanted to form a source/drain region(26). An insulation layer for planarization is formed to completely cover the gate electrode and the first and second gate sidewalls. The insulation layer for planarization is planarized to expose the upper surface of the gate electrode. The planarized insulation layer is etched to recess a part of the first gate sidewall. Gate ions are implanted into the gate electrode. An SEG process is performed on the surface of the exposed gate electrode to form an epitaxial layer(29). A salicide layer(30) is formed on the source/drain region and the epitaxial layer.
Patent KR-20030052325-A (KR)
Title: The removal method of silicon in the pickling waste acid solution
Inventor: BAE U HYEON
IPC: C02F1/60
Filed: 2001-12-21
Abstract: PURPOSE: A method for removing silicon in waste pickling solution by adding hydrated iron into waste pickling solution while adjusting pH within optimal ranges for the purpose of removing free HCl from the waste pickling solution is provided to reduce an adverse effect due to silicon in the manufacture of soft ferrite materials. CONSTITUTION: The method comprises the steps of injecting hydrated iron into waste pickling solution to adjust the waste pickling solution within pH range of 1.5 to 3; aging the waste pickling solution for at least 20 hrs so as to form colloidal silicate; and separating the colloidal silicate from the waste pickling solution.
Patent KR-20030053143-A (KR)
Title: Method for Reducing Nozzle Clogging for Molten Steel Containing Al and S
Inventor: AHN SANG BOK
IPC: B22D1/00
Filed: 2001-12-22
Abstract: PURPOSE: A method for preventing clogging of submerged entry nozzle in continuous casting more effectively and easily in manufacturing molten steel containing aluminum and sulfur is provided. CONSTITUTION: In manufacturing steel containing 0.3 to 0.6 wt.% of C, 0.01 to 0.04 wt.% of Al and 0.02 to 0.04 wt.% of S, the method is characterized in that a composition for molten steel is composed in such a way that a ratio of calcium (Ca) to aluminum (Al) (Ca/Al) in molten steel is 0.06 or more, or a ratio of calcium (Ca) to sulfur (S) (Ca/S) in molten steel is 0.08 or more.
Patent KR-20030054088-A (KR)
Title: Seasoned laver contained ginseng and manufacturing method thereof
Inventor: PARK JANG SOON
IPC: A23L17/60
Filed: 2001-12-24
Abstract: PURPOSE: Provided is a process of preparing seasoned laver by coating seasoning sauce consisting of corn germ oil and herb flavor(ginseng flavor) on both sides of dried laver, coating a mixture of ginseng powder and salt thereon and then roasting it. Therefore, the laver maintains the characteristic taste of laver while containing the characteristic component of ginseng which is beneficial to the human health. CONSTITUTION: Dried laver is firstly roasted at 300x10deg.C for 12sec, a seasoning sauce consisting of 2 to 10% by weight of corn germ oil and 0.01 to 10% by weight of liquid herb flavor is coated on both sides of the dried laver having a moisture content of about 5% by weight and a specified size. Then, a mixture of 0.01 to 20% by weight of ginseng powder and 1 to 5% by weight of salt is coated on one side of the seasoned laver. Secondly, the seasoned laver is roasted at 300x10deg.C for 12sec.
Patent KR-20010079704-A (KR)
Title: Transmission of gsm circuit-switched data over a cdma link
IPC: H04W88/16
Filed: 1999-08-27
Abstract: In a GSM mobile wireless telecommunications system (20), a method for conveying data from terminal equipment (46) to a network (48) via a CDMA air interface, including receiving the data as input from the terminal equipment (46) and transmitting the data at a CDMA data transfer rate over the CDMA air interface. The data are transferred to the network (48) over a GSM A-interface using a GSM circuit switched data protocol.
Patent KR-20010080226-A (KR)
IPC: H01L21/762
Filed: 2000-08-18
Abstract: 개선된 집적회로 부리 구조(isolation structures)의 제공(provision)을 포함하는 집적회로를 제공하기 위한 기술들이 공개되었다. 그 기술들은 서로로부터 전기적으로 분리된(isolated) 수많은 기판 영역(substrate regions)을 규정하는 집적회로 기판(integrated circuit substrate) 내에 수많은 트렌치(trenches)를 형성하는 것을 포함한다. 유전성 물질(dielectric material)은 제 1 증착 대 에칭 비(deposition-to-etch ratio)를 가진 고밀도 플라즈마(plasma)에  노출됨으로써 트렌치(trenches) 내에 증착되어(deposited) 있다. 그 고밀도 플리즈마는 적어도 부분적으로 그 트렌치(trenches)을 채운 후, 그 기판 위의 유전성 물질(dielectric material)을 축적시키기 위해 제 1 증착 대 에칭 비(the first ratio)보다 더 큰 제 2 에칭 대 증착 비(deposition-to-etch ratio)에 조정되어(adjusted) 있다. 유전성 물질의 일부분은 그 제조상의 워크피스(workpiece)을 평탄화하기 위해 제거된다. 절연 게이트 필드 효과 트랜지스터(insulated gate field effect transistors)와 같은 수많은 구성요소(components)는 그 후에 그 트렌치(trenches) 사이의 기판영역 내에 형성될 수 있다.
Patent KR-20010089569-A (KR)
IPC: A61L27/58
Filed: 1999-11-25
Abstract: 본 발명은 인간 또는 동물에 이식하기 위한 인간 또는 동물 체내에서 생분해될 수 있는 다공성의 생체적합성 이식물에 관한 것이며, 상기 이식물은 탄성의 실모양 구성요소로 이루어져 있다.  실모양 구성요소는 수 천개 이하의 실(2)을 함유하는 수많은 실 다발(1)로 구성되어 있고 상기 실은 총 밀도가 5 내지 120 텍스인 50개 내지 500개의 필라멘트를 함유하고 있다.  상기 실 다발(1)은 m 당 0 내지 150 회전의 트위스트를 가지고 있고 실모양 구성요소의 길이 방향으로 계산하여 cm 당 소수의 실의 분포 밀도에서부터 cm 당 약 100개 이하의 실의 분포 밀도를 지니면서 가로실(3)에 의해 함께 결속되어 있다.
Patent KR-20010099888-A (KR)
Title: 제어방출 생체적합성 안구 약물 송달 삽입 디바이스 및 방법
IPC: A61K45/00
Filed: 2000-10-19
Abstract: 생체적합성이며 눈에 삽입될 수 있는 제어 방출 디바이스가 개시되어 있다. 디바이스는 약물, 및 주위 유체의 유입에 대해 실질적으로 불투과성이며 송달하는 동안 약물의 방출에 대해 실질적으로 불투과성인 중합 외부층을 포함하는 코어를 가지며, 약물방출은 외부층의 오리피스를 통해 영향을 받는다. 이들 디바이스는 디바이스의 총 표면적의 10% 미만의 오리피스 면적을 가지며 용해도 및 또는 분자량의 변화에 따라 다양한 약물을 송달하는데 사용될 수 있다. 이들 약물 송달 디바이스를 사용하는 방법이 또한 제공된다.
Patent KR-20010101677-A (KR)
Title: Method and apparatus for communication between an electronic device and a connected battery
IPC: H04M1/00
Filed: 2000-01-24
Abstract: An apparatus supporting both identification of a battery type and communications over an interface between a battery and an electronic device is disclosed. The electronic device includes a processor for communicating with communications circuitry of the battery. Identification circuitry associated with the processor enables a determination of the type of battery with which the electronic device is connected. If a "smart" battery capable of carrying out serial communications with the electronic device is connected, the electronic device further provides means for carrying out communications between the processor and the communication circuitry of the battery.
Patent KR-20010102430-A (KR)
IPC: G01C17/28
Filed: 2000-02-28
Abstract: 거울 하우징(120), 거울 하우징이 수직과 수평 양측으로 경사되게 거울 하우징을 차량에 추축으로 장착하기 위한 장착 구조(200), 거울 하우징 안에 배치되며 콤파스 처리 회로에 결합되는 콤파스 센서(320)를 포함하고 있는, 차량에의 사용을 위한 후사경 어셈블리(100)의 개시이다.    거울 어셈블리는 거울 하우징의 경사를 보상하는 수단(380)을 포함하게 되며 거울 하우징이 전의 위치로부터 경사돼 있는 경우를 검출하는 경사 검출기(500)를 포함하게 된다.
Patent KR-20020013513-A (KR)
Title: XYLO-LNA analogues
IPC: A61P43/00
Filed: 2000-03-17
Abstract: A bicyclic nucleoside derivative, wherein an intranucleoside ring locks the ring conformation of the nucleoside, is termed an LNA - a <u>L</u>ocked <u>N</u>ucleic <u>A</u>cid. LNAs of the xylo-configuration, considered useful as therapeutic agents, diagnostic agents and useful for the formation of oligonucleotides, have been prepared. These oligonucleotides are also useful as a therapeutic and in diagnostic fields. Furthermore, oligonucleotides comprising LNAs of the xylo-configuration are useful for high-affinity targeting of complementary single stranded and double stranded DNA and RNA and have interesting activity with regards to specificity and affinity to oligonucleotides.
Patent KR-20010108382-A (KR)
Title: 폴리카르보네이트 및 그라프팅된 고무를 함유하는 저온인성이 개선된 조성물
IPC: C08L69/00
Filed: 2000-03-21
Abstract: 개선된 특성, 특히 저온에서의 높은 연성 및 충격 강도를 갖는 성형 용품을 제조하는데 적합한 열가소성 성형 조성물이 개시되어 있다.  이 조성물은 방향족 폴리카르보네이트와 2종 이상의 그라프팅된 고무의 혼합물의 수지 블렌드를 함유한다.  그라프팅된 고무의 혼합물은 중량 평균 입자 크기가 0.3 마이크론 미만인 "소형 (small-mode)" 조성물과 중량 평균 입자 크기가 0.3 마이크론 이상인 "대형 (large-mode)" 조성물을 함유한다.
Patent KR-20020010643-A (KR)
Title: Service shut off device
IPC: F16L5/04
Filed: 2000-05-05
Abstract: A service shut off device which is a selected length of a composite body adapted to be formed into a shape to fit in use around a service line. The composite body has a flexible casing (20) and a body of intumescent material (28) received in the casing. The body of intumescent material (28) may be continuous. The composite body has means (32) associated with the casing to contain the intumescent material within the casing and means (36) to retain the collar in a selected shape around the service line. Mounting brackets (36) can clip onto the body or be part of the body.
Patent KR-20020019042-A (KR)
IPC: G06Q30/08
Filed: 2000-05-26
Abstract: 인터넷 검색엔진에 의해 발생되는 검색결과 목록 내 검색목록순에 대한 위치에 정보 제공자가 영향을 미치게 하는 시스템 및 방법이 공개된다. 네트워크 정보 제공자는 인증 처리를 통한 로그인(110) 후 검색 목록순을 추가, 삭제, 수정할 수 있다. 정보 제공자는 웹사이트 내역에 관련된 검색용어를 먼저 선택함으로서 제공자 계좌 내 검색 목록순에 대한 위치에 영향을 미친다. 네트워크 정보 제공자는 검색용어와 설명을 검색 목록순에 입력한다. 정보 제공자는 연속적인 경매 낙찰 과정(170)을 통해 검색 목록순에 대한 위치에 영향을 미친다. 경매 낙찰 과정은 검색 목록순에 대한 새로운 낙찰값을 정보 제공자가 입력할 때 발생한다. 이 시스템 및 방법은 이 낙찰값을 동일한 검색용어에 대한 모든 다른 낙찰값과 비교하고, 상기 검색 용어를 가지는 모든 검색 목록순에 대한 순위값을 발생시킨다. 경매낙찰 과정에 의해 발생된 순위값은, 네트워크에서 클라이언트 컴퓨터에 위치하는 검색자에 의한 검색용어의 질의에 따라 발생되는 검색결과 목록에서 정보 제공자 목록순이 어디에 나타날 지를 결정한다.
Patent KR-20020019052-A (KR)
Title: Search user interface providing mechanism for manipulation of explicit and implicit criteria
IPC: G06F17/30
Filed: 2001-03-19
Abstract: A user interface for querying and displaying records from a database allows explicit and implicit profiles to be stored and selectively, and independently, incorporated in a search. Implicit profiles are derived from the selections of resources by a user without requiring the user to specify any rules by which selections are made. A machine-learning algorithm is used to derive a model by which user-preferences can be predicted. Explicit profiles are rules entered by the user. For example, the user may select certain categories of resources that the user prefers to exclude from searches. Queries are defined by selecting predefined criteria, and one or both of the explicit and implicit profiles. In an embodiment, profiles are displayed and manipulated just as categories of other criteria to add and remove them from queries. The queries can be saved and edited.
Patent KR-20030058838-A (KR)
Inventor: LEE WANG SOO
IPC: A62D1/08
Filed: 2002-01-02
Abstract: PURPOSE: Provided is an ecological and economical liquid fire-extinguishing agent which extinguishes a forest fire easily and completely and is not harmful to plants. CONSTITUTION: The liquid fire-extinguishing agent essentially comprises ammonium sulfate and urea in the form of a mixed compound represented by the formula of X CO(NH2)2. (NH4)2SO4. The mol ratio of ammonium sulfate and urea is 1 to 2.2. The concentration of the mixed compound is ranged from 47% to 60%. Particularly, X is ranged from 0.90 to 2.4.
Patent KR-20030063055-A (KR)
Title: Apparatus for excluding adult channel in sleeping accommodations and method thereof
Inventor: WOO TAE SIK
IPC: H04H60/14
Filed: 2002-01-22
Abstract: PURPOSE: A device and a method for blocking adult channels accommodations are provided to filter and block frequency bands of specific adult channels in a pay TV arranged in accommodations, so as to prevent children and juveniles from viewing programs of the adult channels. CONSTITUTION: An accommodation manager outputs a remote control signal for blocking or normally operating adult channels according to the age of a guest to a broadcast output controller arranged in a room(S100). A micro controller of the broadcast output controller generates a control signal for blocking or normally operating the adult channels(S200). A relay driver switches a broadcasting signal provided from an external through a broadcasting signal input terminal to an output line having an adult channel blocking filter or an output line for normal operations according to the control signal(S300). If the guest inputs certain money in the broadcast output controller for using a pay TV(S400), the micro controller controls display of program viewing available time with the inputted money(S500). Broadcast programs provided from the external through the output line having the adult channel blocking filter or the output line for normal operations are outputted to a TV receiver for the displayed time(S600).
Patent KR-20030065213-A (KR)
Title: Method for forming isolation of semiconductor device
Inventor: PI SEUNG HO
IPC: H01L21/76
Filed: 2002-01-31
Abstract: PURPOSE: A method of forming an isolation layer in a semiconductor device is provided to prevent electric field concentration at a top corner of a trench by wet etching with KOH solution for anisotropic etching. CONSTITUTION: A pad oxide layer of 50-250 angstrom is stacked on a semiconductor substrate(40). A pad nitride used for a hard mask is deposited. An isolation region is defined using a photoresist pattern. By KOH solution, a portion to form a top corner is rounded by a wet etching process. A trench sidewall oxide layer is formed. A gapfill oxide layer(43) is filled in the trench. By using CMP, an STI isolation layer is formed.
Patent KR-20030066252-A (KR)
Title: A method and system of on-line horse racing using moving picture.
Inventor: CHO BYUNG HO
Filed: 2002-02-05
Abstract: PURPOSE: A method and system for an on-line horse racing using moving picture data is provided to enable a user to enjoy the horse racing using a moving picture by storing data photographed during several years in a conventional horse racing track in a moving picture storing server as a digital format and using a streaming and multicast technique. CONSTITUTION: A moving picture DB(100) stores moving picture data photographed in a horse racing track. When an on-line horse racing is played, the data are extracted at random. When the on-line horse racing is started, the data are transmitted to a client PC(140) as a streaming form. Horse racing related data are displayed and a betting is executed on the web through a server(120) using a program and a horse racing related DB(110). A user watches information of horse racing apportionment and racehorses and executes a betting through the client PC(140). The betting data are received to the server(120) and the on-line horse racing is started. Transmitted moving picture data are reproduced in the client PC(140) and a virtual horse racing is played as an actual horse racing. If the horse racing is completed, the result is processed in the server(120) and result data are transmitted to the client PC(140). The user receives a free gift or cyber money according to the horse racing result.
Patent KR-20030068346-A (KR)
Inventor: CHO YEONG GI
IPC: E02D15/08
Filed: 2002-02-15
Abstract: PURPOSE: A section pile anchor is provided to easily install the anchor by attaching the anchor to a lower end of a suction pile through a hydraulic jack even in the deep sea and to reduce cost by reusing the suction pile and the hydraulic jack. CONSTITUTION: A section pile anchor(40) installed under water is composed of a circular jack fixed and installed to a lower end of a suction pile(10) and a hydraulic pipe(24) mounted through the inside and upper end of the suction pile and connected to a marine hydraulic press to actuate the hydraulic jack; the upper end of the suction pile connected to a crane of the sea; a pipe disposed to the upper end of the suction pile and connected to a pump of the sea to discharge water flowed in the suction pile; the anchor combined with the suction pile by the hydraulic jack, separated from the suction pile by the movement of the hydraulic jack and installed with being stuck in the bottom of the sea at a predetermined depth; and a side of a wire(43) fix-installed to the outside of the anchor.
Patent KR-20030069611-A (KR)
Title: Device of vibrated reduction of fan
Inventor: LIM HYEONG JIN
IPC: F04D29/66
Filed: 2002-02-22
Abstract: PURPOSE: An apparatus for reducing vibration a cooling fan is provided to reduce vibration and noise generated from the cooling fan by mounting a hollow-shaped elastic member on the cooling fan of a projection device. CONSTITUTION: A vibration reducing apparatus for a cooling fan includes a cooling fan(401), a housing case(402) for fixing the cooling fan(401), and a hollow-shaped elastic member mounted on the housing case(402). The hollow-shaped elastic member is mounted at sides of the housing case(402) so as to absorb vibration. That is, the hollow-shaped elastic member is mounted at four edges of the housing case(402). The hollow-shaped elastic member is adapted for a high-speed and high-pressure cooling fan of a projection television and a projector.