baber/WOPTO huggingface dataset:
Patent KR-910000710-B1 (KR)
Inventor: NIELSEN PETER B
IPC: C04B7/44
Filed: 1983-09-02
Granted: 1991-01-31
Abstract: 내용 없음.
Patent KR-900006307-B1 (KR)
Title: Multiplex magnetic recording and reproducting system
Inventor: MIURA KUNIAKI
IPC: G11B5/52
Filed: 1984-01-24
Granted: 1990-08-28
Abstract: A magnetic recording and reproduction system of a helical scan type capable of recording and reproducing a plurality of information signals with a rotary magnetic head unit and operable slectively in a first operation mode in which a magnetic recording medium is transported at a standard speed for recording and reproducing operation and a second operation mode in which the magnetic recording medium is transported at a lower speed, comprises: a pair of first rotary magnetic heads (9A,9B) having different azimuth angles of gaps (91) and disposed with an angular spacing of about 180 degrees from each other, said rotary magnetic head pair being supplied with a first information signal in recording; and a pair of second rotray magnetic heads (8A,8B) having azimuth angles of gaps different from each other and from said first rotary magnetic heads.
Patent KR-910002942-B1 (KR)
Inventor: ASHINA YOSHIRO
IPC: C07C211/04
Filed: 1984-05-04
Granted: 1991-05-11
Abstract: 내용 없음.
Patent KR-920004565-B1 (KR)
Title: Component video interconnection apparatus
Inventor: GRIEPENTRONG DAL F
IPC: H04N5/262
Filed: 1984-06-26
Granted: 1992-06-08
Abstract: A signal bus (8) has distributed along it distributed video components (10, 12) such as teletext decoder and a video tape recorder. A TV monitor (26) has connected directly to it other video components (14, 16, 18) which are thus regarded as non-distributed. To interconnect the distributed and non-distributed components, the monitor includes a first switch unit (32) which selectively connects the bus (8) and non-distributed components (14-18) to a signal processor (28) and a second switch unit which selectively connects the non-distributed components to the bus. A driver (36) terminates the bus in its characteristic impedance (as illustrated by resister 40).
Patent KR-910007006-B1 (KR)
Inventor: KUNUGI KATSUO
IPC: D01F6/62
Filed: 1984-08-09
Granted: 1991-09-14
Abstract: 내용 없음.
Patent KR-900000398-B1 (KR)
Title: Thick film conductor composition
Inventor: SHIETA VINCENT P
IPC: C09D5/24
Filed: 1984-08-24
Granted: 1990-01-25
Abstract: Thick film conductor composition comprises(in wt.%) : conductive material of which at least 28 wt.% is Cu 85-98.8 ; inorganic binder 10-1 ; and non-Cu material selected from W,Mo,Rh and their alloys 5- 0.2, the Cu particles having a max. size below 10 micron and mean size 2-4 micron, and the non-Cu particles having a max. size below 5 micron and mean size 0.2-3 microns.  Conductive material is Cu(alloy) or a mixt. of Cu and a noble metal, espectially a cutectic mixture of Cu and Ag ; non-Cu metal is W. Composition retains good solderability even after multiple firings.
Patent KR-880000228-B1 (KR)
Title: The method for transferring grains of the grain dryer
Inventor: SHIN JONG-UNG
IPC: F26B17/00
Filed: 1984-10-10
Granted: 1988-03-15
Abstract: Dried grains were removed from a dryer by applying air to a certain pressure within a closed drying chamber and then opening outlets all of once for burst-discharge.  Thus, grains were poured into a hopper (2), transported to a drying chamber (5) by air blowing through a flow tube (4), and air-dried.  After closing clamber (5) by shutting a ventilator (7), a preset air pressure was built as within chamber (5) by blowing air in through a air holes (8) (15) (15') using an air blowes (17).  The dried grains were removed completely from (5) by letting out compressed-air all at once through outlets (6,6',6") with the guide of porous steel plate (13).
Patent KR-860002181-B1 (KR)
Title: Preparation for copper oxid
Inventor: SONG JONG-SOP
IPC: C01G3/02
Filed: 1984-11-08
Granted: 1986-12-24
Abstract: High purity micron size copper oxide was produced from the refining of mesh size copper oxide. The refining process comprises heat- treatment of copper oxide in rotary heat-treatment equipment for 2h at 600-1000≰C and injection of compressed-air having sonic flow rate(Ca. Mach 2.5) into enclosed vessel contg. mesh size copper oxide. Prepd. high purity and quality copper oxide are useful for magnetic substances prodn.
Patent KR-890004819-B1 (KR)
Title: Manufacture of resin seal type semiconductor device
Inventor: TEIE TOSIKASU
IPC: H01L23/28
Filed: 1984-12-07
Granted: 1989-11-27
Abstract: The sealed semiconductor device secured to a lead-frame is made by sealing the element and the adjacent part of the leadframe with resin, collapsing a pair of adjacent corners of the outer lead members (12a) longltudinally along the members, and removing resin, adhered during the sealing step to the sides of the members.  The adjacent corners are both coplanar with either the top or bottom plane of the leadframe.  An additional pair of adjacent corners opposite to the first is collapsed, and the collapsing step removes part (13) of the adhered resin.
Patent KR-930009000-B1 (KR)
Inventor: LU SHI-LAI
IPC: B65D17/50
Filed: 1985-08-27
Granted: 1993-09-18
Abstract: 내용 없음.
Patent KR-940001079-B1 (KR)
Inventor: WALLACE EDWARDS
IPC: B41M1/14
Filed: 1985-10-25
Granted: 1994-02-12
Abstract: 내용 없음.
Patent KR-890003626-B1 (KR)
Title: Composition of ethylene/co/acid terpolymers
Inventor: LANCASTER GERALD M
IPC: B32B27/04
Filed: 1984-09-07
Granted: 1989-09-28
Abstract: Olefin polymers which are unsuited, or ill-suited, for heating, sealing, or bonding by the action of high-frequency electromagnetic radiation, especially microwave radiation, are rendered heatable by such radiation by incorporating carbon monoxide, as a comonomer, into the polymer structure. Novel adhesives comprising terpolymers of ethylene/carbon monoxide/acids are disclosed, where the acid moiety of the terpolymer is at least one carboxylic acid polymerizable through carbon-to-carbon unsaturation, and salts thereof.
Patent KR-900005340-B1 (KR)
Inventor: ONISHI KATSUMI
IPC: G06F9/00
Filed: 1984-11-08
Granted: 1990-07-27
Abstract: 내용 없음.
Patent KR-900004861-B1 (KR)
Inventor: NATSUMEDA TAKESHI
IPC: F24F13/062
Filed: 1986-04-03
Granted: 1990-07-08
Abstract: 내용 없음.
Patent KR-890002923-B1 (KR)
Title: Manufacturing method of the flexible shield for wideband radiowave scatter
Inventor: KIM DOO-HWAN
IPC: H05K9/00
Filed: 1986-09-08
Granted: 1989-08-11
Abstract: A flexible shielding film is prepd. by vacuum depositing (or printing under vacuum) conductive paint or metal on both sides of a nonconductive woven fabric or synthetic resin base film in the position to correspond half wavelength of radiowave.
Patent KR-890001563-B1 (KR)
Title: A process for the production of a carbonated coffee beverage
Inventor: HAN JONG-RYUL
IPC: A23L2/38
Filed: 1986-09-25
Granted: 1989-05-08
Abstract: A method for preparing a carbonated coffee beverage is presented. Thus, a mixt. contg. 150g sucrose, 400g fructose, 15% coffee ext., 10g caramel, and 10g natural flavor of coffee was sterilized at 85-90≰C, cooled to 5≰C, and treated with CO2 at 6 ≰C and 0.7 kg/cm2 to give a final product.
Patent KR-900002017-B1 (KR)
Title: Stereoscopic television systems picture signal generators
Inventor: HONG SUK-KWAN
IPC: H04N13/02
Filed: 1986-09-26
Granted: 1990-03-31
Abstract: The video camera for taking the three dimensional image equips an image synthesising apparatus (2) comprising a pair of lenses (3,4) located at the distance of about 70mm, a pair of liquid crystal shutters (5,6) operated alternatively, a pair of shutter driver (7) driving the shutters alternatively, a mirrors (8-11) reflecting the image light to the lenses.  The image synthesiser (2) is detachable from the video camera.
Patent KR-940003048-B1 (KR)
Inventor: FERNSLER RONALD E
IPC: H04N9/29
Filed: 1986-09-29
Granted: 1994-04-11
Abstract: 내용 없음.
Patent KR-910006599-B1 (KR)
Title: Apparatus and method for performing automated amplification of nucleic acid sequence
Inventor: JOHNSON LARRY J
IPC: B01J19/00
Filed: 1987-02-24
Granted: 1991-08-29
Abstract: The invention provides heat exchanger apparatus for use in a temperature-cycling instrument for automated temperature cycling of a plurality of reaction wells comprising:   a heat-conducting metal block having a top surface and a plurality of recesses communicating with said top surface for holding said reaction wells; and computer controllable means for heating and cooling said block repeatedly in a user-defined manner.   <IMAGE>
Patent KR-900003357-B1 (KR)
Title: Vinyl cholride plastisol composition
Inventor: KENGICHI YUKAWA
IPC: C08L27/04
Filed: 1987-05-28
Granted: 1990-05-16
Abstract: A vinyl chloride plastisol compsn. comprises 15-30 pts. wt. of vinylchloride-vinylacetate; 0.5-2 pts. wt. of modified polyamide resin; 0.05-5 pts. wt. of silane coupling agent and/or additives; and alliphatic hydrocarbon. The additives comprise plasticizer filler and/or stabilizer. The plastisol compsn. has water resistance and excellent storage stability and low-temp.  curable property.
Patent KR-950002843-B1 (KR)
Title: Process for making individualized, crosslinked fibers having reduced
Inventor: HERRON CARLISLE M
IPC: A61L15/16
Filed: 1987-06-27
Granted: 1995-03-27
Abstract: Absorbent structures containing individualized, crosslinked fibers. The individualized, crosslinked fibers preferably have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with the 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. More 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. Also preferably, the absorbent structures have actual dry densities greater than their corresponding equilibrium wet densities, and expand upon wetting. The absorbent structures may also contain hydrogel-forming material.
Patent KR-890002881-B1 (KR)
Title: Apparatus for providing fine grained ice or snow
Inventor: THOSIAKI ENDO
IPC: B28B7/04
Filed: 1987-09-01
Granted: 1989-08-08
Abstract: Fine grained ice or snow suply apparatus (10) provides thrust power to sending back direction for satisfactory mixing agitation in a receipt hopper (23).  Inside of the receipt hopper (23) having entrance and exit install a rotation axis by rotation stirring equipment which is vertical to sending back direction. The rotation axis installs a number of agitator vanes that extend outside of the axis.  A part of the vanes and the other vanes are oppositely declined to the rotation axis of a front section and a parallel section of rotary direction.
Patent KR-910000343-B1 (KR)
Title: Method of selecting for tape driving
Inventor: CHONG SE-YOUNG
IPC: G11B15/18
Filed: 1987-08-31
Granted: 1991-01-24
Abstract: A mechanism selects auto rewinding and playing only the  when operator wants such an  operation.  The  proposed  video  cassette recroder has a square hole (4) in the back, a slide switch (3)  to open/ close the hole for user selection and a lift switch  (6)  to sense the open/close state of the hole. The operator selects  auto rewinding and playing mode by opening or closing the square  hole. Then the micro computer senses the hole  open/close,  which  means open for auto mode and close for manual mode by push button.
Patent KR-900003790-B1 (KR)
Title: A process for the manufacture of a solid fuel
Inventor: PARK BYUNG-KU
IPC: C10L5/46
Filed: 1987-09-10
Granted: 1990-05-31
Abstract: A process for mafg. solid fuel comprises (a) adhesively- hardening lignite powder (up to 80 mesh) or charcoal powder 75- 85 wt. % with phenol resinand salicylic acid, (b) mixing with crushed leather wastes (80 mesh) 5-15 wt.% and lower coal 5-15 wt.%, (c) adding water soluble adhesive 5-6 wt.% [composed of starch (stirred with caustic soda at anhydrous) 35-45 wt.% and carboxymethylcellulose 55-65 wt.%  on a strirrer, and (d) molding.
Patent KR-960004945-B1 (KR)
Inventor: RODI FRITZ
IPC: C01G49/02
Filed: 1987-09-12
Granted: 1996-04-18
Abstract: 내용 없음.
Patent KR-0121183-B1 (KR)
Inventor: MRENNA STEPHEN ALBERT
IPC: H01H71/24
Filed: 1987-09-30
Granted: 1997-11-21
Abstract: 내용없음.
Patent KR-910007982-B1 (KR)
Inventor: MURABAYASHI KATSUYOSHI
IPC: C08K3/30
Filed: 1987-12-24
Granted: 1991-10-05
Abstract: 내용 없음.
Patent KR-910003668-B1 (KR)
Inventor: YUMIYAMA SIKERU
IPC: H02K21/22
Filed: 1987-12-31
Granted: 1991-06-08
Abstract: 내용 없음.
Patent KR-950013014-B1 (KR)
Title: Pump with continuosus inflow and pulsating outflow
Inventor: LUNDBACK STIG
IPC: F04B/
Filed: 1986-09-17
Granted: 1995-10-24
Abstract: A pump with a continuous inflow and a pulsating outflow comprises a first chamber and a second chamber with a passage between them and made from a flexible material, provided with an inlet to the first chamber and an outlet from the second chamber, the passage between the chambers being provided with a one-way valve permitting flow in direction from the first to the second chamber only, and a second one-way valve arranged at the outlet permitting flow out of the second chamber only. The chambers are movably supported in a pump casing with a first and a second opening, in that the inlet is connected to and penetrates the first opening, and in that the outlet is connected to and penetrates the second opening. Drive means cyclically affect the second chamber and reduce its volume under expulsion of the medium which is pumped while simultaneously affecting the walls of the first chamber causing its volume to increase and medium to flow through the inlet into the chamber. The drive means include a drivering surrounding said passage and fixed to it, and which drivering has surfaces engagable with the first and the second chamber walls in a way that the medium taken in between periods when the drive means is affecting the chamber walls controls the output of the pump by defining the receding movement of the drive ring, which movement is a function of the differential pressure force resulting from the difference in areas of engagement with the respective chamber wall on both sides of the drive ring.
Patent KR-930001627-B1 (KR)
Inventor: TAKEMOTO SHOUICHI
IPC: A63F7/00
Filed: 1988-05-31
Granted: 1993-03-08
Abstract: 내용 없음.
Patent KR-970000142-B1 (KR)
Inventor: MCDONALD IAN A
IPC: C07C209/16
Filed: 1988-06-14
Granted: 1997-01-04
Abstract: 내용 없음.
Patent KR-910009739-B1 (KR)
Title: Manufacturing method of semiconductor device
Inventor: KANG CHANG-WON
IPC: H01L21/331
Filed: 1988-07-13
Granted: 1991-11-29
Abstract: The semiconductor device with bipolar  transistor,  nMOS  and pMOS formed on one chip is manufactured by  the  following  steps; (a) forming twin buried layers (2,3) on silicon substrate (1); (b) epitaxial growing the silicon (4) on the buried layer; (c) forming a oxide layer (5) and nitride layer (6) on  (4);  (d)  removing  a part  of  (6),(5)  and  (4)  in  sequence  by  common  lithography processing; (e) implanting the first conductive type  impurity  at the etched region of (4); (f) forming a LOCOS  layer  (9)  on  the etched epitaxial layer (4); (g) implanting the  second  conductive type impurity at the non-etched epitaxial layer after etching  the nitride layer (6); etching the LOCOS layer and oxide layer (5).
Patent KR-950009224-B1 (KR)
Title: Safety lock and key
Inventor: DEBACKER FELIX
IPC: E05B19/06
Filed: 1988-08-05
Granted: 1995-08-18
Abstract: The key (1) for a safety cylinder, especially for operating a lock or a latch, comprises a body (3) intended for penetrating into a key receptacle provided in a cylinder rotor mounted in a stator, the key body being equipped with at least one slidable element (9) capable of moving in a movement of limited extent in a chamber (10) provided in the key. The element (9) is intended for interacting with a positioning member provided on the rotor, so as to project from its chamber (10) and push a moveable rotor pin into position allowing the rotor to rotate relative to the stator, the chamber (10) of the moveable element extending in a direction orthogonal relative to the longitudinal mid-axis (A) of the key body. The chamber (10) provided in the key body (3) has its axis located in the mid-plane of the key body and has a cross-section of a specially rectangular form such that, as a result of interaction with the matching cross-section of the element (9), it prevents any rotation of the element about its longitudinal axis (B) within the chamber (10). <IMAGE>
Patent KR-940008530-B1 (KR)
Inventor: YAMAZAKI SHUNPEI
IPC: G02F1/141
Filed: 1988-09-16
Granted: 1994-09-22
Abstract: 내용 없음.
Patent KR-0157295-B1 (KR)
Inventor: WOOD PRENTICE J
IPC: B65D71/00
Filed: 1988-09-27
Granted: 1999-02-18
Abstract: 내용 없음.
Patent KR-910004693-B1 (KR)
Title: Spinning nozzle for conjugater spinning
Inventor: KIM WEON-JUN
IPC: D01D5/23
Filed: 1988-12-28
Granted: 1991-07-10
Abstract: The  first  porous  plate  (A)  has  guide  holes  (1)   for introducing the island  component,  the  introducing  holes  being smaller in diameter than the pipe (3) of the second  porous  plate (B). The pipe (3) is attached to the inner wall of  the  holes  in the second porous plate (B) and has length from the upper  of  the second porous plate (B) to introducing surface of the third porous plate (C). The third porous plate (C) has an inclined surface  (4) and introducing holes larger  in diameter than the pipe  (3).  The fourth porpous plate (D) has collecting section (7) and  extrusion oriffices (8).
Patent KR-0147065-B1 (KR)
Inventor: GAMEMURA DAKESHI
IPC: G11B17/04
Filed: 1989-03-07
Granted: 1998-10-15
Abstract: 내용없음.
Patent KR-960011763-B1 (KR)
Inventor: BERNARD ELEOUET
IPC: C08J9/02
Filed: 1989-04-27
Granted: 1996-08-30
Abstract: 내용없음.
Patent KR-920002594-B1 (KR)
Title: Touch position detecting circuit and method thereof of touch sereen
Inventor: KIM SUNG-KU
IPC: G06F3/02
Filed: 1989-06-03
Granted: 1992-03-30
Abstract: The circuit comprises a X and Y axis detection voltage supply for providing detection voltage to a touch screen,  an  analog  to digital converter  for  converting  detected  voltage  to  digital signal and for sending the signal to a  microcomputer,  a  control signal generator for controlling the A/D  converter  according  to instruction signals transmitted from a microcomputer, and  a  flip flop for  transmitting  A/D  conversion  completion  signal  to  a microcomputer.
Patent KR-910008256-B1 (KR)
Title: Controlling circuit opening and shutting door of elevator
Inventor: HWANG SU-CHUL
IPC: B66B13/22
Filed: 1989-06-30
Granted: 1991-10-12
Abstract: A circuit is for using one door open/close button in  common. If the common door button is pressed in  case  that  the  door  is closing or closed, the door is opened by operating the  door  open relay. If the common door button is pressed in case that the  door is opened, the door is closed by operating the door closing relay.
Patent KR-920003295-B1 (KR)
Inventor: NAITO YOSHIYUKI
IPC: H01Q17/00
Filed: 1989-10-27
Granted: 1992-04-27
Abstract: 내용 없음.
Patent KR-920000181-B1 (KR)
Title: Heat-cutting/bonding blade and heat-bonding apparatus
Inventor: YOUSIDA YOUSINARI
IPC: B29C65/00
Filed: 1989-11-22
Granted: 1992-01-10
Abstract: The invention provides a heat-bonding blade (2) and a heat-bonding apparatus capable of heat-bonding thermoplastic resin sheets, in particular non-woven cloth sheets of thermoplastic resin, with or without heat-cutting these sheets. A first-type heat-bonding blade intended for heat-cutting/bonding has pressing members (3) provided on both sides of the blade. The distance (1) between the lower end of each pressing member and the edge of the blade is determined such that the pressing members lightly press the sheets of the thermoplastic resins when the edge of the blade has pressed into the sheets. A second-type heat-bonding blade intended only for heat-bonding the sheets is provided with a contact surface on the edge thereof. The contact surface is embossed (2b) so as to have a multiplicity of emboss projections (2a). This type of heat-bonding blade maybe formed by removing the pressing members from the blade of the first type and providing an embossed contact surface on the edge of the same. The heat-bonding apparatus of the invention employs one of these types of heat-bonding blade of the invention.
Patent KR-930001086-B1 (KR)
Inventor: BAKERMANS JOHANNES C W
IPC: B21D43/00
Filed: 1988-06-09
Granted: 1993-02-15
Abstract: 내용 없음.
Patent KR-970004752-B1 (KR)
Inventor: NAKAMURA NOBUYUKI
IPC: H05K1/02
Filed: 1990-02-28
Granted: 1997-04-03
Abstract: 내용없음.
Patent KR-0162250-B1 (KR)
Inventor: HOFER ARMOLD
IPC: C08G59/04
Filed: 1990-04-07
Granted: 1999-01-15
Abstract: 내용없음.
Patent KR-960001744-B1 (KR)
Inventor: MELPOLDER JOHN B
IPC: C09B69/10
Filed: 1990-05-01
Granted: 1996-02-05
Abstract: 내용 없음.
Patent KR-930010275-B1 (KR)
Inventor: SAKURAI TSUTOMU
IPC: H04B10/275
Filed: 1990-05-12
Granted: 1993-10-16
Abstract: 내용 없음.
Patent KR-0144344-B1 (KR)
Title: 수크로오즈-6-에스테르의 염소화방법
IPC: C07H5/02
Filed: 1990-07-18
Granted: 1998-07-01
Abstract: 내용업음
Patent KR-920005551-B1 (KR)
Title: Transportation and ejecting device for injection molding article
Inventor: NO WON-BOK
IPC: B29C45/76
Filed: 1990-07-28
Granted: 1992-07-06
Abstract: The apparatus is used for automatically inserting or  drawing scissor edge to the mould in continuous injection molding process. The apparatus comprises a two-stepped feeder  mounting  frame  (1) supported by four legs (3); a  scissors-edge  mounting  frame  (6) having two pairs of quides (7)(7') for  inserting  and  laminating the edge at the front of drawing-device  mounting  frame  (2);  an edge feeding plate (10) with  an  insert  groove  (11);  a  feeder carriage (14) driven by a reciprocating cylinder (12);  a  drawing carriage (19) driven by a reciprocating  cylinder  (18);  clamping jaws (20)(21) opened or closed by a cylinder (22).
Patent KR-940000952-B1 (KR)
Title: Acd (automatic all distribution) distributing method
Inventor: HONG KYE-PYO
IPC: H04Q3/64
Filed: 1990-10-18
Granted: 1994-02-04
Abstract: The method for automatically distributing a call in a private automatic exchanger includes the steps of: checking the state of connection of a call to a guide stand and performing an automatic call distribution service if the connection is available; checking whether the present state is a state of call restoration or not if the connection is unavailable; providing guidance broadcasting and waiting music and converting the call to other ACD group if the present state is not the state of call restoration, converting the call to other lines; providing the repeat of a specific step to a caller, and performing call restoration, thereby equally distributing calls to respective guide stands.
Patent KR-0164850-B1 (KR)
Title: Novel polypeptides, the dna sequences allowing their expression, method of preparation and utilization
Inventor: PETRE DOMINQUE
IPC: C12N15/57
Filed: 1990-11-15
Granted: 1999-01-15
Abstract: The present invention concerns a DNA sequence coding for a polypeptide with enantioselective amidase activity.
Patent KR-960013933-B1 (KR)
Title: Method of heating part of a continuous material web
Inventor: ANDERSSON ANDERS
IPC: B31B50/64
Filed: 1991-01-10
Granted: 1996-10-10
Abstract: The disclosure relates to a method of heating a part of a continuous material web (4), in that IR lamps (1) with radiation-concentrating reflectors (2) are aimed towards a restricted area (7) of the continuous material web (4). <IMAGE>
Patent KR-0161291-B1 (KR)
Inventor: YONEZAWA KEITARO
IPC: F04B9/107
Filed: 1991-01-31
Granted: 1999-03-20
Abstract: 실린더(7)내의 유체압발동실(9)에 대하여 파일럿밸브(18)와 유체압급배밸브(13)를 통하여 압력유체를 공급배출하는 것에 의해서 피스톤(8)을 상하방향으로 왕복구동하는 발동기이며, 그 급배밸브(13)의 급배밸브체(30)의 상측에 실린더실(70a)에 파일럿밸브상자(71)를 상하방향으로 기밀미끄럼작동자재하게 삽입한다. 
     상기한 급배밸브체(30)의 상측에 배치한 배압용작동실(35)내의 유체압력에 의하여, 상기한 파일럿밸브상자(71)를 복귀스프링(73)에 저항하여 상승시킨다.