baber/WOPTO huggingface dataset:
Patent KR-890001408-B1 (KR)
Title: Installation of ion exchange membrane in electrolytic cell
Inventor: SMITH PETER J
IPC: B01J39/18
Filed: 1983-02-17
Granted: 1989-05-02
Abstract: A method of installing an ion-exchange membrane comprising an organic polymer containing ion exchange groups or derivatives convertible to ion exchange groups in an electrolytic cell, comprises expanding the membrane by stretching in order to increase the surface area per unit weight of the membrane, and securing the expanded membrane to the electrolytic cell or part of this.  The membranes are useful in electrolytic cells of the type used for the electrolysis of alkali metal chloride solutions.  To give chlorine and alkali metal hydroxide.
Patent KR-910001941-B1 (KR)
Inventor: BOWDITCH PHILIP N
IPC: D05B3/00
Filed: 1983-08-16
Granted: 1991-03-30
Abstract: 내용 없음.
Patent KR-880001688-B1 (KR)
Title: Ignition device for sintering machine
Inventor: TANAKA KUNIHIRO
IPC: F27B21/08
Filed: 1984-04-18
Granted: 1988-09-06
Abstract: The ignition device for a moving grate sintering-machine has outlet holes for air and fuel gas passages in the burner tip arranged to generate intersecting jets.  The burner is connected to fuel gas and air supply pipes (8,9) with a gas passage (15) in the center and air passages (16,16a) on either side.  An elongate burner tip (Bt) is removably attached to the burner body, with a gas passage in the center and air passages (19,19a) on either side.  These gas and air passages face those of the burner body. A series of rows of outlet holes (20,20a,21,21a) are provided along the tip gas and air passages, along the length of the tip. The outlet holes open in directions in which the fuel gas and air ejected cross each other.
Patent KR-920004106-B1 (KR)
Inventor: CHIN DANNY
IPC: H04N9/68
Filed: 1984-06-05
Granted: 1992-05-25
Abstract: 내용 없음.
Patent KR-920003191-B1 (KR)
Inventor: DUNCAN ROBERT
IPC: B23K26/20
Filed: 1984-07-23
Granted: 1992-04-24
Abstract: 내용 없음.
Patent KR-910009737-B1 (KR)
Inventor: BETTSCHEN JOSEF
IPC: G04B39/02
Filed: 1984-12-14
Granted: 1991-11-29
Abstract: 내용 없음.
Patent KR-910006979-B1 (KR)
Title: 1,3,4,5 - tetrahydrobenz (c,d) indoles a process for preparation
Inventor: GLASER THOMAS
IPC: C07D209/90
Filed: 1984-12-21
Granted: 1991-09-14
Abstract: 1. Tetrahydrobenzindoles of the general formula  see diagramm : EP0148440,P9,F1  in which R1  and R2 denote hydrogen or C1 -C6 -alkyl or, together with the nitrogen atom, form a heterocyclic 5-membered or 6-membered ring which is optionally substituted by 1 or 2 C1 -C6 -alkyl groups, and X represents OR3  or SR3 , wherein R3  denotes hydrogen or C1 -C4 -alkyl, and salts thereof.
Patent KR-930008746-B1 (KR)
Title: Liquid coating composition, method of coating a metals substrate and the metal substrate thus obtained
Inventor: VISSANG PATRIC
IPC: C09D5/24
Filed: 1985-03-22
Granted: 1993-09-13
Abstract: The invention provides a coating composition for metal surfaces containing a binder, a high amount of an electrically conductive pigment such as zinc, and 0,05-5 per cent by weight, calculated on the coating composition, of at least 2 solid, powdered lubricants, at least one of them being inorganic. The invention also relates to a process for coating a metal surface using said coating composition, and the properly machinable and weldable coated substrate thus obtained.
Patent KR-940000890-B1 (KR)
Inventor: GACHEN HANS H
IPC: G11B5/60
Filed: 1985-05-10
Granted: 1994-02-03
Abstract: 내용 없음.
Patent KR-900006610-B1 (KR)
Title: Process for making high-purity fe-si
Inventor: SHIM JAE-DONG
IPC: C22B9/00
Filed: 1986-05-20
Granted: 1990-09-13
Abstract: The surface of FeSi melt poured in ladle is covered with refining agent consisting of 55-60% SiO2, 26-31% CaO and balance two components of 7-10% MgO, 7-10% CaF2 and 7-10% FeO. Simultaneously with blowing of oxidation gas into melt, FeSi melt is agitated for 20-25 mins. by means of rotation of an impeller to remove the impurities. The oxidation gas consists of oxygen and nitrogen and passes through the center hole of impeller.
Patent KR-900004751-B1 (KR)
Title: Magnetic recording carrier
Inventor: OJIMA KUMIKO
IPC: G11B5/73
Filed: 1986-10-11
Granted: 1990-07-05
Abstract: A magnetic recording tape comprises a non-magnetic carrier coated on one side with a magnetic recording layer and on the other side with a dispersion of carbon (100 pts. wt.) and opt. nitrocellulose and/or a polyurethane resin (0-150 pts. wt.) in a copolymer resin (2-200 pts. wt.) of vinyl chloride and vinyl alcohol (contg. non less than 6, pref. 8-35 wt.%). The prods. are an improved data recording medium.
Patent KR-920007962-B1 (KR)
Inventor: KIMURA JUNICHI
IPC: B23D29/02
Filed: 1986-11-26
Granted: 1992-09-19
Abstract: 내용 없음.
Patent KR-940008674-B1 (KR)
Inventor: GARTSIDE N CHARLES H
IPC: G02B6/036
Filed: 1987-06-24
Granted: 1994-09-24
Abstract: 내용 없음.
Patent KR-950002842-B1 (KR)
Title: Individualized, crosslinked fibers and process for making said fibers
Inventor: DEAN WALTER L
IPC: D06M13/123
Filed: 1987-06-27
Granted: 1995-03-27
Abstract: Individualized, crosslinked fiber, and process for making such fibers. The individualized, crosslinked fibers have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C2 - C8 dialdehydes, C2 - C8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C2 - C8 dialdehydes, and dialdehyde acid analogues. Preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. The individualized crosslinked fibers are useful in a variety of absorbent sturcture applications.
Patent KR-890001669-B1 (KR)
Title: Coating ring and it's making method
Inventor: BAE HYE-JOO
IPC: A44C9/00
Filed: 1987-06-29
Granted: 1989-05-13
Abstract: Ceramic rings of clay ground are manufactured in diverse shapes and colors with the employments of inlaying, incising, filigree and transferring of patterns at low cost.  A white ground material comprising 30 wt. parts kaoline, 10 wt. parts feldspar, 10 wt. parts silica, 30 wt. parts white earth and 20 wt. parts clay is mixed with pigments for coloring, formed into shapes, and dried.  The product is then sintered first at 750-800 degree C, second at 1300-1380 degree C, finally at 800 deg.C with painting or transferring pattern after the second sintering.  The ring present a way of overcoming the limits of precious metals and stones and palstic imitations in use.
Patent KR-920000197-B1 (KR)
Inventor: ITCHIKAWA YUKKIO
IPC: C08G75/02
Filed: 1987-09-05
Granted: 1992-01-10
Abstract: 내용 없음.
Patent KR-910001806-B1 (KR)
Inventor: LAZARIDIS CHRISTINA N
IPC: H01B3/40
Filed: 1987-10-06
Granted: 1991-03-26
Abstract: 내용 없음.
Patent KR-950011737-B1 (KR)
Inventor: GITTOS MAURICE WARD
IPC: C07D453/00
Filed: 1987-11-03
Granted: 1995-10-09
Abstract: 내용 없음.
Patent KR-920001450-B1 (KR)
Inventor: DANIELS BRIAN K
IPC: G03F7/004
Filed: 1987-12-22
Granted: 1992-02-14
Abstract: 내용 없음.
Patent KR-950007704-B1 (KR)
Inventor: ANDRE ANDRIEU
IPC: C03C10/08
Filed: 1988-06-02
Granted: 1995-07-14
Abstract: 내용 없음.
Patent KR-920004270-B1 (KR)
Inventor: ISKENDERIAN ARMENAG
IPC: B21B1/08
Filed: 1988-06-21
Granted: 1992-06-01
Abstract: 내용 없음.
Patent KR-960000100-B1 (KR)
Inventor: MARSH NORMAN
IPC: G01F25/00
Filed: 1988-08-12
Granted: 1996-01-03
Abstract: 내용 없음.
Patent KR-960012436-B1 (KR)
Inventor: PALAIZOTTO MICHAEL C
IPC: C08F4/42
Filed: 1988-08-27
Granted: 1996-09-20
Abstract: 요약 없음.
Patent KR-910007688-B1 (KR)
Title: Electgronics pump water volume detecting press control system
Inventor: LEE NAM-JAE
IPC: G01F15/02
Filed: 1988-09-20
Granted: 1991-09-30
Abstract: The flow tester having upper  and  lower  panels  (2,2')  are mounted at the front of upper panel (2) for pressure control valve (3), pipet tube (5) and pressure gage (6)  mounted  on  electronic valves (4,4') on the rear side of lower panel. The lower  part  of pressure control valve (3) includes elevating support nut (11) for the pump, projected pressure control nut (13), open control  valve case (12). The pipet tube is supported by fixed holder (14) at the frame (10).
Patent KR-960016131-B1 (KR)
Inventor: DIPAK NARULA
IPC: C08L101/00
Filed: 1988-10-29
Granted: 1996-12-04
Abstract: 내용없음
Patent KR-900008700-B1 (KR)
Inventor: SANDO YOSHITERU
IPC: D06B3/36
Filed: 1988-11-02
Granted: 1990-11-27
Abstract: 내용 없음.
Patent KR-920000554-B1 (KR)
Inventor: MATSUTA EIZI
IPC: G07F5/24
Filed: 1988-11-05
Granted: 1992-01-16
Abstract: 내용 없음.
Patent KR-970002219-B1 (KR)
Title: Frequency synthesizer having digital phase detector with optimal steering and lever-type look indication
Inventor: KAATZ GARY F
IPC: H03D13/00
Filed: 1988-11-18
Granted: 1997-02-25
Abstract: For use in a radio synthesizer (110), a digital phase detector (118) indicates the phase error between a reference signal provided by a reference oscillator (117) and an output frequency signal (114) provided by a voltage controlled oscillator (112). The digital phase detector (118) includes four flip/flops (310, 312, 314 and 316) which receive the frequency signals (116 and 120) provided by the oscillators (117 and 112) to generate steering signals (126) which optimally indicate the phase error between the frequency signals (116 and 120) as well as providing optimal (maximum) frequency steering when a frequency difference between the frequency signals (116 and 120) exists. Responsive to the flip/flops, digital logic circuitry (306) is used to provide a non-integrated level-type indication when the frequency signals (116 and 120) are phase locked.
Patent KR-920001001-B1 (KR)
Title: Telephone service method
Inventor: CHO SEUNG-HWAN
IPC: H04M3/50
Filed: 1988-12-31
Granted: 1992-02-01
Abstract: displaying a first  message to an LCD of a keyphone  (2)  after  checking  the  absence  mode; registering the information message  into  a  storing  table,  and generating a confirming sound; displaying the message to  the  LCD upon finding the message to be the last  one;  and  returning  the operation to the second step upon finding the message  to  be  not the last one. According to the present invention,  an  information message is displayed to an LCD when some one makes  a  phone  call during the absence of the receiver of the switching system.
Patent KR-950009712-B1 (KR)
Inventor: LEIRSBURG DEAN A VAN
IPC: B01J38/00
Filed: 1987-12-15
Granted: 1995-08-26
Abstract: 내용 없음.
Patent KR-930004522-B1 (KR)
Inventor: ASHIDADE IKURO
IPC: F23N1/00
Filed: 1989-01-20
Granted: 1993-05-27
Abstract: 내용 없음.
Patent KR-940002731-B1 (KR)
Title: Manufacturing method of semiconductor device
Inventor: PARK SUNG-KAP
IPC: H01L21/28
Filed: 1989-05-08
Granted: 1994-03-31
Abstract: The semiconductor device manufacturing method includes the steps of: separately forming an interlayer insulating layer into a first interlayer insulating layer and second interlayer insulating layer; etching the first and second interlayer insulating layers to previously form a contact hole; etching the contact hole of the first and second interlayer insulating layer in different etching rates; etching a thermal oxide layer; selectively forming tungsten layers in the contact hole; and coating an aluminum layer on the tungsten layer, thereby reducing contact resistance.
Patent KR-970009231-B1 (KR)
Inventor: YADA SHUHEI
IPC: C08F2/34
Filed: 1989-06-22
Granted: 1997-06-09
Abstract: 내용 없음.
Patent KR-920002584-B1 (KR)
Title: Tape volume dectecting device for vtr
Inventor: HONG SUNG-HOON
IPC: G11B27/10
Filed: 1989-07-31
Granted: 1992-03-30
Abstract: The apparatus includes an input port (A1) for receiving pulse signals of a supply reel part and pulse signals  of  take-up  reel part. These pulse signals are transferred through a pulse  counter (A4) to a system controller  (A7),  while  a  frequency  which  is generated by  a  clock  signal   generating   section   (A2)   is frequency- divided by frequency dividers (A3)(A5)  so  as  for  the signals to serve as reference clock signals. These reference clock signals are supplied to both the system controller (A7) and  to  a timer section (A6). A ROM (A8) which  is  connected  to  both  the system controller (A7) and a data bus is also connected to both an adder (A10) and an output port (A12), while light emitting  diodes (LD1- LD8) are connected to the output port (A12).
Patent KR-920003830-B1 (KR)
Inventor: DUDCZAK CARY M
IPC: H04M1/68
Filed: 1989-08-11
Granted: 1992-05-15
Abstract: 내용 없음.
Patent KR-920008899-B1 (KR)
Title: Contacting image sensor
Inventor: HWANG HAK-IN
IPC: H04N1/031
Filed: 1989-11-24
Granted: 1992-10-10
Abstract: The image sensor uses an optical fiber array glass plate (16) as an image  forming  system  of  lens  and  has  a  photoelectric converting unit (4) and a light emitting unit (8)  formed  on  the same plane of glass plate (16) to  minize  the  device  size.  The sensor comprises a housing (7), the plate (16) having  an  optical fiber array (17), the unit (4) formed on the lower surface of  the array (17), a signal detection circuit formed on the same  surface that the unit (4) is formed and the light emitting unit (8) formed on the lower end of the unit (4) in the housing (7)  to  emit  the light onto a copy (1) to be placed  on  the  optical  fiber  array (17). The copy is transferred on the surface of  the  glass  plate (16). to prevent the damage of the unit (4).
Patent KR-910009747-B1 (KR)
Title: Safety belt for 2-wheeled vehicle
Inventor: PARK JUN-TAEG
IPC: B60R22/00
Filed: 1989-11-23
Granted: 1991-11-29
Abstract: The safety belt mounted  on  two-wheeled  vehicles,  protects drivers or passenger's safety in  traffic  accidents.  The  safety belt comprises a box (A) having inner storage chamber (1), H  type frame (3), a restoring roller  (5)  having  an  inner  spring  and mounted at a traverse bar (6), outer cap (9),  and  frame  fixture device (2) ; around safety belt  for  being  weared  on  waist  and connected with the roller (5). The  safety  belt  (B)  having  the luminous tape  (10)  on  the  backside  for  preventing   traffic accidents at night, is weared on both shoulders and is interlocked at breast by locking device (7).
Patent KR-930007686-B1 (KR)
Inventor: MAEDA SHIGEMI
IPC: G11B27/11
Filed: 1989-12-22
Granted: 1993-08-18
Abstract: 내용 없음.
Patent KR-950014848-B1 (KR)
Inventor: SAKASHITA TAKESHI
IPC: C08F220/12
Filed: 1988-07-01
Granted: 1995-12-16
Abstract: 내용 없음.
Patent KR-920003660-B1 (KR)
Title: Swing line indication device
Inventor: KIM CHI-GWON
IPC: A41H3/00
Filed: 1990-01-30
Granted: 1992-05-06
Abstract: A heater plate (11) and a base plate (13) are secured below a pressing plate (10), and a pin hole (12) is formed  on  the  other side of the base plate (13). The lower end of a blade securing pin (15) with a printing blade (18) secured thereon is  fixed  to  the base plate (13) in alignment with  the  sewing  line.  Rack  gears (35)(35') are installed along guide grooves (34)(34') and  on  the front and rear of a guide frame (21). When a carrying roller shaft (22) which is contacted with a carrying screw (23) moves along the guide grooves (34)(34'), the rack gears (35)(35') are meshed  with driven  gears  (29)(29'),  while  a  chalk  applying  roller  (28) includes a leakage hole  (28a)  and  a  solution  absorbing  layer (28b). The  apparatus  draws  sewing  lines  mechanically  and  is convenient compared with the conventional manual drawing method.
Patent KR-930008691-B1 (KR)
Inventor: GARG DIWAKAR
IPC: C23C28/00
Filed: 1990-03-06
Granted: 1993-09-13
Abstract: 내용 없음.
Patent KR-950001667-B1 (KR)
Title: Process for the preparation of cement
Inventor: MUN YONG-SUN
IPC: C04B14/02
Filed: 1990-03-22
Granted: 1995-02-28
Abstract: The constituents of conventional Portland cement such as calcium oxide powder, silicone dioxide, aluminum oxide, and ferric oxide were mixed with sodium oxide and magnesium oxide, the mixed powder was added to Masa or diatomite and the proper quantity of water added to obtain the pasty soft cement. The pasty cement can be hardened by the exothermic reaction of sodium oxide and magnesium oxide and have sufficient compressior strength for building materials such as brick and block.
Patent KR-920008390-B1 (KR)
Title: Display equipment and method for cash register
Inventor: HYON HO-IL
IPC: G07G1/06
Filed: 1990-04-21
Granted: 1992-09-28
Abstract: The cash register, comprising  a  decoder  (h)  generating  a control output of 2N unit by decoding the  signal  generated  from the output port of N unit of CPU and a light emitting diode of  2N unit flickered according to the state of each control  output,  is able to show the sales amount. The control method for showing  the sales amount includes the following  steps:  clearing  the  output port in the case of ending state of goods dealings;  renewing  the storing region of the present sales amout by summing the amount of money; renewing the storing region of the total amount by  summing the present sales amount and the previous  sales  amount;  showing the sales results by driving the relevant light emitting diode.
Patent KR-920006673-B1 (KR)
Title: Method of producing cigarette filter
Inventor: CHOE SUNG-HYON
IPC: A24D3/02
Filed: 1990-05-15
Granted: 1992-08-14
Abstract: The preparing method of cotton fabric cigarette filter  which features high tar removal ability as well as mild taste comprises; drying of cotton by conventional method, weaving woven fabric in a gauze form using soft-twisted yarn of 12-20's as a warp (2a), soft twisted yarn of 50-65's as a weft (2b), spraying with small amount of adhesives of rice starch onto the woven  fabric,  cutting  them into small width by punching in a constant interval,  winding  the cutted fabric in a mechanical way, passing them through filter rod molding machine primarily  to  heat-dry,  through  first,  second, third induction pipe, thus making  filter  rod  in  which  punched parts form small space making smooth touch on a mouth possible.
Patent KR-0157056-B1 (KR)
Inventor: SHIOKAWA KOZO
IPC: C07D401/06
Filed: 1990-06-12
Granted: 1998-11-16
Abstract: 내용 없음.
Patent KR-0175297-B1 (KR)
Inventor: VON BRACHEL HELMUT
IPC: F41A21/02
Filed: 1990-06-14
Granted: 1999-02-18
Abstract: 내용 없음.
Patent KR-930004688-B1 (KR)
Title: Voice mailing system with a special function of tenant
Inventor: KIM JAE-HONG
IPC: H04M3/533
Filed: 1990-06-21
Granted: 1993-06-03
Abstract: A  private  branch  exchange  (PBX)  (B)  is  coupled  to  an international telephone network (A) via  a  number  of  subscriber lines (CO1,CO2,CO3) and to a  voice  mail  system  (C)  via  lines divided into tenant groups (TGN1-TGN3). The PBX (B) is coupled  to a number of telephone subscribers (STNA,STNB,STNC). Each  received call is evaluated in  dependence  on  the  tenant  group  and  the required number is checked to ensure that it  corresponds  to  the same  tenant  group  before  the  required  service  is   allowed, otherwise a wrong mail box number indication is provided.
Patent KR-930005605-B1 (KR)
Title: Remote control apparatus of catv
Inventor: SO CHOL
IPC: H04N7/10
Filed: 1990-09-29
Granted: 1993-06-23
Abstract: A CATV broadcasting station remotely controls the channel  of a subscriber according to the channel and time of  user's  demand. The remote channel control circuit comprises a broadband TV signal input terminal (1), a TV signal output terminal (2) for  providing the selected channel TV signal to a television receiver, a  number of switching means (3,4) for switching  the  selected  channel  TV signal, a number  of  band  erasing  means  (5)  for  erasing  the specific channel, a band pass means (7) for separating the signals including the  subscriber  identification  data  and  the  channel control data, a control data detecting means (8),  and  a  channel control means (9) for controlling the switching mean according  to the signal from the control data detecting means.
Patent KR-930009149-B1 (KR)
Title: Digital ic logic level generating circuit for element test device
Inventor: CHON YONG-JUN
IPC: H03K19/00
Filed: 1990-11-12
Granted: 1993-09-23
Abstract: The digital IC  logic  level  generating  circuit  tests  the built- in components  of  the  base  board  by  comparing  with  an expected output after inputting programmable data  for  the  logic level of digital IC. This comprises a test controller (2),  a  bus interface logic (1) receiving and transmitting control  signal,  a RAM (6) storing the output data from the bus interface logic  (1), a data register (4) connected to the bus interface logic  (1)  for inverse translation in the test controller, a data register 2  (5) connected to a logcal timing generator (11) for timing counting.
Patent KR-920008582-B1 (KR)
Inventor: YAMAJI KEIJO
IPC: D06M11/42
Filed: 1989-04-27
Granted: 1992-10-01
Abstract: 내용 없음.
Patent KR-930010372-B1 (KR)
Title: Method for manufacturing continuous sheets of bread dough
Inventor: HAYASHI DORAHIKO
IPC: A21C3/02
Filed: 1991-04-17
Granted: 1993-10-23
Abstract: A methods and apparatus for producing a continuous belt-like sheet (5) of bread dough. The apparatus consists of a dough hopper, vertical conveyors (4) located on two facing side walls of the hopper, a dough outlet (19) provided at the bottom of the hopper, and a pair of discharging rolls (3) facing each other at the dough outlet and being rotatable so as to pass the bread dough downwardly therebetween. The width of the outlet and the peripheral speed of the discharging rolls are controllable so that a high-quality sheet of bread dough is continuously produced, while the gel structure of the dough is not harmed. <IMAGE>
Patent KR-100209822-B1 (KR)
Inventor: KANG SUN-HE
IPC: F24F6/00
Filed: 1991-07-29
Granted: 1999-07-15
Abstract: 본 발명은 물과 공기를 순환시켜 식물을 재배하고, 공기를 맑게함과 동시에 순환되는 물의 수분을 실내에 발산시켜 실내의 습도를 조절하도록 한 공기정화 기능을 갖는 가습기에 관한 것이다. 
     즉 휀에 의해 실내의 온도를 균등하게 유지되게 실내공기를 대류시킴과 동시에 흡입되는 공기를 탱크의 물이 펌프의 공급에 의해 물막이 형성된 휠터를 통과한 공기는 수분을 함유한 상태로 배출되며 탱크에 저수된 물에 살균등을 쪼이면 자외선에 의해 살균 소독된 깨끗한 물로 가습된 공기를 실내에 공급함으로 가습이 되어지며 펌프에 의해 흡인되는 물을 휠터에 공급하면서 실내에서 식물의 수경재배로 공기청정과 산소공급이 이뤄지도록 한 것으로 구체적으로 탱크(13)에 다수구멍(14')을 갖는 흡수구(14)를 설치, 탱크(13)내의 물(w)이 펌프(15)로 급수파이프(12)를 통해 상부(2)의 일측에 수개로 교차되게 설치된 가이드(5)에 의해 형성된 수로(6)의 일측부에 공급되도록 하고 수로(6)내에는 식재된 식물(g)을 지지하면서 탱크(13)내의 오염된 물(w)이 걸러지도록 부재(10)를 충진하되 수로(6) 타측부에 수로(6)내 적정한 수위가 유지되도록 턱(7)과 배수구(8)를 형성하여 배수구(8)에 다공성의 휠터(9)를 탱크(13)의 수면에 잠기도록 설치하여 공급된 물(w)이 휠터(9)를 타고 물막을 형성하면서 탱크(13)로 흘러들어 가도록 하고, 상부(2)의 타측에 설착된 휀(4)에 의해 외부 오염된 공기(a)가 그릴(3)를 통과하여 흡인되어 물막이 형성된 휠터(9)를 통과하여 상부(2)의 일측을 형성시킨 통기구(11)를 통해 밖으로 송풍되도록 구성된다. 
     이상과 같은 본 발명은 간단한 구조로 관리가 간편하며 휀에 의해 실내공기를 대류시키므로 균일한 온도분포가 이뤄지도록 되며 공기정화 및 습도조절.살균작용과 함께 수경재배가 이뤄질 수 있는 등의 효과를 갖는다.
Patent KR-950006356-B1 (KR)
Inventor: MIZUKATA KATSUYA
IPC: H04N5/93
Filed: 1991-09-04
Granted: 1995-06-14
Abstract: 내용 없음.
Patent KR-930011494-B1 (KR)
Title: Spool in three-way valve and driving device
Inventor: JONG HWAN-KON
IPC: F16K11/00
Filed: 1991-10-05
Granted: 1993-12-08
Abstract: The invention, which is about  a  driving  device  and  3-way valve which changes the flow path by moving  spool,  comprises;  a rotor (6) which is supported by the shaft of driving  device  (20) set at one side of the body (1) of 3-way valve  and  a  spool  (2) which changes  the  flow  path  as  it  moves  left   and   right reciprocally by the rotor. The  device  can  make  the  force  for shutting the pipe tightly minimized and can make the operation  of opening and closing valve precise by controlling the  rotor  at  a constant velocity. So  the  device  is  very  economical  and  can prevent the leakage of water.
Patent KR-950008233-B1 (KR)
Inventor: TAKEMURA SEIJI
IPC: H01L23/12
Filed: 1991-10-22
Granted: 1995-07-26
Abstract: 내용 없음.
Patent KR-940006808-B1 (KR)
Inventor: SHOJI WATARU
IPC: G06F3/14
Filed: 1991-10-23
Granted: 1994-07-27
Abstract: 내용 없음.
Patent KR-950007435-B1 (KR)
Inventor: HAM MYONG-SHIK
IPC: H04L7/033
Filed: 1991-10-25
Granted: 1995-07-10
Abstract: 내용 없음.
Patent KR-950001288-B1 (KR)
Inventor: MAGOME KOICHI
IPC: G11C29/04
Filed: 1991-11-08
Granted: 1995-02-15
Abstract: 내용없음.