baber/WOPTO huggingface dataset:
Patent KR-100196258-B1 (KR)
Inventor: LUI TZE YONG
IPC: H03G3/34
Filed: 1991-10-07
Granted: 1999-06-15
Abstract: 본 발명은 전원 턴-온 및 턴-오프로 인하여 발생된 과도 신호를 제거하기 위한 무팅 회로이다. 한 실시예에 있어서, 신호 체인의 접합부는 접합부(26)의 DC 상태와 무관하게 접지에 AC 분로된다. 그 분로는 마이크로프로세서(20)가 동작에 따른 접합부(26)로 신호를 커플링하는 신호 체인의 일부를 위해 전원을 여기시키거나, 혹은 여기시키지 않을 때 전원 제어 마이크로프로세서(20)에 의해 발생된 신호에 응답하게 된다. 다른 실시예에 있어서, 그 접합부(26)는 순바이어스된 이후에 AC 분로를 제거하기 위해 역바이어스되는 다이오드(42) 및 캐패시터(46)와 직렬로 다이오드(42)를 통해 턴-온 되는 동안 접지에 AC 결합된다. 그 다이오드(42)의 바이어스는 다이오드(42)의 각각의 전극에 전압(ps1, ps2)의 두 상이한 소스의 인가에 의해 얻을 수 있다.
Patent KR-940005356-B1 (KR)
Title: Concrete mobile
Inventor: SONG KAP-JU
IPC: B28C5/42
Filed: 1991-10-30
Granted: 1994-06-17
Abstract: The self-advancing concrete mobile includes a material inlet having a hopper for sand and gravel, a hopper for cement and a water tube, an internal shoot, a vomiting portion having a concrete hopper, double-acting oil-hydraulic cylinder, and piston, and an outer shoot, thereby continuously producing concrete.
Patent KR-960011431-B1 (KR)
Title: Generation of chloride dioxide in a non-aqueous medium
Inventor: PITOCHELLI ANTHONY R
IPC: C01B11/02
Filed: 1991-10-30
Granted: 1996-08-22
Abstract: A method of preparing chlorine dioxide in a non-aqueous liquid is disclosed. An aqueous solution of chlorine dioxide is mixed and agitated with a non-aqueous liquid. The chlorine dioxide is extracted into the non-aqueous liquid. In a preferred embodiment, an aqueous chlorite solution is added to a quantity of non-aqueous liquid. Acid is added to the aqueous phase to generate chlorine dioxide. The phases are vigorously agitated to extract the chlorine dioxide into the non-aqueous phase. High concentrations of very pure chlorine dioxide are obtainable. In another preferred embodiment, chlorine is prepared in a non-aqueous liquid and is mixed and agitated with an aqueous chlorite solution. Separation of the aqueous and non-aqueous phases provides pure solutions of chlorine dioxide in the non-aqueous liquid. Very pure aqueous solutions of chlorine dioxide are prepared by mixing and agitating non-aqueous solutions of chlorine dioxide with water. A reactant useful in oxidation, synthesis, disinfecting and sterilizing comprising chlorine dioxide dissolved in a non-aqueous liquid is disclosed. <IMAGE>
Patent KR-940001344-B1 (KR)
Title: Heat treatment method and apparatus of ferrous materials
Inventor: KIM YONG-HUI
IPC: C23C8/32
Filed: 1991-11-21
Granted: 1994-02-19
Abstract: The multipurpose heat treating furnace useful for quenching, gas carburizing, gas nitriding etc., is partitioned into a preheating zone, a reaction zone and a diffusion zone. The ventilating fans are located on the upper side of the heating furnace at intervals of 75-150 cm. The upper additive gases are spouted on the surface of work-pieces through nozzles located at an angle of 30-600 from the pivots of the vantilating fans during transferring work-pieces from the inlet to the outlet. Also, the lower additive gases are spouted through nozzles located on the lower side of the heating furnace. The supply ratio of the upper additive gases to the lower additive gases is 1:1 - 1:3.
Patent KR-940001635-B1 (KR)
Title: Newspaper vending machine
Inventor: KIM DOK-KUN
IPC: G07F11/42
Filed: 1991-11-20
Granted: 1994-02-28
Abstract: The vending machine for automatically drawing out newspaper from a lower discharging outlet, has push buttons for selecting newspapers, multi-storey exhibition shelves for displaying newspapers. The machine comprises a plurality of exhibition shelves (9) lifted by rotation of a lifting shaft tube (10a) along a spiral shaft (7) and a guide column (8); bevel gears (10b)(14a) for transmitting power of a motor (14) to the tube (10a); discharging rollers (11)(11a) connected with a motor (15); a switching device (17) combined with inner/outer casings (20)(19) having an outer coil spring (22) and inner connecting plates (19a)(20a); a cam (25) for lifting a discharging roller (11); a selection button for discharging newspaper displayed on the show-stage (9).
Patent KR-0151159-B1 (KR)
Inventor: KAMIGAWA YUJI
IPC: H01L21/68
Filed: 1991-11-22
Granted: 1998-12-01
Abstract: 구동장치는, 제1 커버와, 이것을 네스팅 식으로 덮는 제2 커버와, 상기 제1 및 제2 커버를 덮는 제3 커버를 구비한다. 
     상기 제1 및 제2 커버를 축방향으로 상대적으로 이동시키기 위한 구동부재의 일부가 상기 제1 커버내의 제1 공간내에 배열설치된다. 
     상기 제1 공간에는, 질소가 공급되어 양압상태로 유지된다. 
     상기 제1 및 제2 커버간의 상기 제2 공간은, 그 용적변화에 따라서 내부의 공기가 공급 및 배출되어, 압력이 실질적으로 일정하게 유지된다. 
     상기 제3 커버와 상기 제1 및 2 커버와의 사이의 제3 공간은 배기되어, 부압상태로 유지된다. 
     따라서, 제1 커버내의 분위기와, 구동장치 주위의 분위기가 서로 절연(絶緣)된다.
Patent KR-950005984-B1 (KR)
Title: Operating system in electronic exchange
Inventor: LEE MAN-HUN
IPC: H04M3/22
Filed: 1991-12-17
Granted: 1995-06-07
Abstract: The method improves the system security so that the scope of user command is limited and the permitted command is inspected as well. The method comprises; the first step (301,307) of controlling the system login process; the second step(401,405) of controlling the operator command input if the command is input from the operator; the third step(501,502) of controlling the system logout process if the logout command is come in.
Patent KR-940008504-B1 (KR)
Title: Banding tension control device for packaging machine
Inventor: MUN SHIN-UNG
IPC: B65B13/22
Filed: 1991-12-26
Granted: 1994-09-22
Abstract: The banding tension adjusting apparatus for a packing machine is easy to use and minimize adjusting time. A shaft (21), fitted with a coil spring (5) and combined with a bearing (101) is inserted into a cylindrical shaft (10), which forms left-hand screw (102) on the circumference. An adjusting cylinder (21) is assembled with the cylindrical shaft (10) and is connected with a collar (203), supported by the spring (5), via a bearing (202). A guide bar (204) is attached to the lower and central part of the adjusting cylinder (21) to glide in a slender hole (301a) of bracket (301) fixed on a frame (30). A shaft (40) is connected with the cylindrical shaft (10) by a key (401), and is driven by a pair of bevel gears connected with the driving shaft (50).
Patent KR-950012930-B1 (KR)
Inventor: YAMAMOTO YOZO
IPC: C08L33/04
Filed: 1992-01-16
Granted: 1995-10-23
Abstract: 내용 없음.
Patent KR-950005062-B1 (KR)
Title: Apparatus for eliminating frequency varying bit noise of a tv receiver
Inventor: HO JAE-SU
IPC: H04N5/21
Filed: 1992-02-24
Granted: 1995-05-17
Abstract: The circuit automatically tracks the frequency of the beat noise in a television receiver, and eliminates the beat noise by varing the filtering frequency. The circuit comprises a frequency discriminator (11), connected between a video detector (4) and a video processor (5) to detect the beat frequency and provide a frequency variable filter (12) with the voltage relating to the beat frequency, the frequency variable filter (12) for converting the filtering frequency into the beat frequency, and a delay circuit (13) to delay the output of the video detector for the delay time in the frequency discriminator and the frequency variable filter.
Patent KR-100261368-B1 (KR)
Title: Method of exhausting gases and fumes from an electric arc furnace utilizing additional inlet gas duct ensuring constant pressure
Inventor: DANIEL PERNET
IPC: F27D3/08
Filed: 1992-05-22
Granted: 2000-07-01
Abstract: The enclosure of the metallurgical container is connected to a fan (105) by a suction duct (102). An additional gas is introduced in the suction part of the fan (105), preferably by means of the duct (102). The flow rate of introduction of this additional gas is adjusted so that the gas pressure in the suction part of the fan (105) is kept at a fixed value, by virtue of a regulation value (108) preferably placed on an additional duct (107), connected to the suction duct (102). A control means (110) makes it possible to adjust the opening and closing of the regulation valve (108) so as to keep constant the gas pressure in the suction part of the ventilator (105). 
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Patent KR-100243333-B1 (KR)
Inventor: SONN KON
IPC: H01L21/28
Filed: 1992-06-26
Granted: 2000-03-02
Abstract: 반도체소자의 콘택제조방법에서 폴리실리콘 상부에 산화물 스페이서를 형성함으로써, 하부에 폴리실리콘을 식각할 때 측면이 수직인 폴리실리콘이 형성되어, 콘택식각시 장벽(Barrier)로 사용되어, CD(Critical Dimension) 손실을 줄일 수 있다.
Patent KR-950014269-B1 (KR)
Title: Word line forming method of semiconductor device
Inventor: LEE KANG-HOI
IPC: H01L21/28
Filed: 1992-07-18
Granted: 1995-11-24
Abstract: forming a gate insulating film and a multi-crystal silicon layer in a substrate on which a field oxidation film is formed; forming all surfaces of the multi-crystal silicon layer by dipping PoCl2 thereon; eliminating a PSG film except a word line area; and forming the word line by masking the PSG film and eliminating the multi-crystal silicon layer.
Patent KR-970008375-B1 (KR)
Title: Image stopping and enlarging apparatus of digital image device
Inventor: YUN SANG-HO
IPC: H04N5/74
Filed: 1992-09-09
Granted: 1997-05-23
Abstract: A device of holding and expanding images in a digital image apparatus having a demodulator 10 for processing an coded input signal to demodulate it into a signal similar to an image signal before coding and to generate a demodulated image, a first frame memory 20 for storing the demodulated image and outputting it by one frame, and a display 30 for displaying the image on a picture is provided which includes a switch for blocking the signal sent from the demodulator to the first frame memory, a memory block 60 for storing a series of image frame signals supplied to the display 30 in order to hold or expand the image being displayed, and a signal expander 50 for expanding the image signal stored in the memory block 60 by a predetermined magnification and sending it to the first frame memory in case of expansion of image signal.
Patent KR-950004379-B1 (KR)
Title: Light converting device
Inventor: CHOE BYONG-SO
IPC: G02F1/13
Filed: 1992-10-13
Granted: 1995-04-28
Abstract: The transducer can improve the efficiency of harmonic wave generation by controlling the light propagating direction in polarizer of the laser resontor. The transducer is composed of an excitation light source(1), a condensing lens(2), a laser monocrystal part(3) with a first mirror, a polarizer(4) made of brewster plate, a non-linear monocrystal(5), a polarized light transducer(11) made of the first, and the second phase modulators(7,8) and the third, and the forth mirrors(8,10).
Patent KR-950006571-B1 (KR)
Title: Preventing a wire rapture for a wire cut discharge machine
Inventor: JON YONG-HO
IPC: B23H7/00
Filed: 1992-11-11
Granted: 1995-06-19
Abstract: The apparatus prevents the breaking of wire caused by a contact between manufactured products and wire, which is easy to occur in a jog transmission of X,Y axials. The apparatus includes a teach pendent, a contact detecting unit, an NC controller, an X and Y axials motor, and an contact detection unit operating unit.
Patent KR-960012659-B1 (KR)
Inventor: SHIMAMURA MASAKO
IPC: G06F17/30
Filed: 1992-11-28
Granted: 1996-09-23
Abstract: 요약없음
Patent KR-0168081-B1 (KR)
Inventor: LEE YUN-SANG
IPC: G01M15/00
Filed: 1992-12-30
Granted: 1999-05-15
Abstract: 내연기관의 기통판별방법에 있어서, 크랭크 위치 센서신호(CPS)와 위상신호가 동시에 통기되는 시점에서, 위상신호 폭만큼 CPS의 펄스에 동기하여 카운팅함으로써 기통을 판별하는 것을 특징으로 하는 내연기관의 기통판별방법.
Patent KR-960004177-B1 (KR)
Title: Entrance door of elevator opening and shutting time setting method
Inventor: KIM JUNG-OH
IPC: B66B13/02
Filed: 1992-12-31
Granted: 1996-03-27
Abstract: receiving a detection signal of the number of passengers who get on an elevator and the number of standby passengers from a camera (CM) and a weight detecting device(DFT), and receiving the opening number of the front door and the calling number of the elevator from a signal transmission unit; calculating the predict number of get-off passenger from the calling number and the passenger number based on an input data, and a opening/closing time of elevator door by using the number of get-off passenger and the reopening number of elevator door; calculating a opening/closing time of elevator door of the based on the reopening number of door; and correcting the opening/closing time of the door to be based on the standby passenger number and reopening number per unit time.
Patent KR-0146278-B1 (KR)
Title: Coating compositions
Inventor: MARRION ALASTAIR ROBERT
IPC: C09D125/00
Filed: 1990-07-12
Granted: 1998-08-01
Abstract: PCT No. PCT/GB90/01075 Sec. 371 Date Jan. 10, 1992 Sec. 102(e) Date Jan. 10, 1992 PCT Filed Jul. 12, 1990 PCT Pub. No. WO91/00894 PCT Pub. Date Jan. 24, 1991.A curable coating composition comprises a hydroxy-functional component (A) having at least two hydroxy groups per molecule and an anhydride-functional component (B) having at least two carboxylic acid anhydride groups per molecule. At least one of the components (A) and (B) is a film-forming polymer. The coating composition contains amidine groups for accelerating the curing reaction between the hydroxy groups of component (A) and the anhydride groups of component (B). The amidine groups are present in the molecule of either of the components (A) or (B) and/or are present in the form of a separate compound containing an amidine group. The component or compound containing an amidine group generally has the formula  (* CHEMICAL STRUCTURE *)  in which R1 represents hydrogen, or an organic group attached through a carbon atom, or an amine group which can be substituted, or a hydroxy group or etherified hydroxy group; R2 and R3 each independently represent hydrogen or an organic group attached through a carbon atom or are joined to one another to form (with the linking -N=C-N-) a heterocyclic ring; and R4 represents hydrogen, an organic group attached through a carbon atom, or a hydroxyl group which can be etherified. Preferably, R2 and R3 are joined to form an imidazoline, imidazole, tetrahydropyrimidine, dihydropyrimidine or pyrimidine ring.
Patent KR-960007521-B1 (KR)
Title: Catalyst for dehydrogeneration of hydrocarbon
Inventor: LEE KYUNG-YUL
IPC: B01J23/76
Filed: 1993-05-07
Granted: 1996-06-05
Abstract: The titled catalyst is prepared by adding both magnesium compound and copper compound to the composition of iron oxide, calcium oxide, cerium oxide and potassium oxide, and calcining the mixture. The magnesium and copper compounds are selected from their oxide, hydroxide, carbonate, dicarbonate, nitrate or sulfate. The prepared catalyst is useful for producing alkenyl aromatic hydrocarbon(eg. styrene) from alkyl aromatic hydrocarbon(eg. ethyl benzene).
Patent KR-0125777-B1 (KR)
Title: Tape reel with break and dust
Inventor: ALBRECHT THOMAS R
IPC: G11B23/087
Filed: 1993-06-14
Granted: 1997-12-29
Abstract: A tape reel brake (207) which is mounted in a well (215) in the top of a tape reel hub. The brake (207) is mounted to be compliantly biased away from the base of the well (215). The hub and brake (207) are seated in the tape cartridge (10) such that teeth (239) on the periphery of the brake (207) are biased against the opposite inside surface (14) of the cartridge housing about the periphery of an opening (20) therein. The biasing of the brake (207) against the opposite inside surface (14) both prevents the rotation of the reel (200) and shields out dust when the tape cartridge (10) is removed from a tape drive. To rotate the reel (200), a tape drive clutch enters the opening (20) in the opposite inside surface and depresses the brake (207) into the well (215) to mate with a smaller diameter portion (220) of the hub. <IMAGE>
Patent KR-960013863-B1 (KR)
Inventor: KURODA TADAHIRO
IPC: H03K19/08
Filed: 1993-06-25
Granted: 1996-10-10
Abstract: 내용 없음.
Patent KR-960015193-B1 (KR)
Inventor: FABRIS HUBERT J
IPC: C08L21/02
Filed: 1993-08-26
Granted: 1996-11-01
Abstract: 내용 없음
Patent KR-950012417-B1 (KR)
Title: Making method of low hydrogen high nitrogen steel
Inventor: KANG BONG-SU
IPC: C21C7/10
Filed: 1993-12-14
Granted: 1995-10-17
Abstract: adding nitrogen gas by 0.01-0.1Nm3/min. in blow refining; using N2 gas for refluxing in vacuum degassing treatment; maintaining a high vacuum state and refluxing for 7-15 minutes then putting in flux for adding nitrogen maintaining low vacuum state of 50-150 torr; and refluxing 5-10 minutes.
Patent KR-960012116-B1 (KR)
Title: Piston of closed compressor
Inventor: SIM JI-HYUN
IPC: F04B39/12
Filed: 1993-12-31
Granted: 1996-09-12
Abstract: The piston (4) is reciprocated in a cylinder(6) by the rotating power of a crank shaft for compressing refrigerant, and has taper shape in top outer part and a groove (4b) for reserving oil at the end in order to decrease local wear.
Patent RO-121062-B1 (RO)
Title: Apparatus for diagnosing orthodontic conditions
Inventor: BERGERSEN EARL O
IPC: A61C7/00
Filed: 1998-10-28
Abstract: The invention relates to an apparatus for diagnosing orthodontic conditions of an individual. The apparatus comprises an equipmant including at least one digital camera (42), an electronic circuitry (40) programmed to diagnose whether the individual has correctable orthodontic conditions, a user interface (22) and a distribution mechanism provided with a slot (54) for delivering the suitable device.
Patent RO-121586-B1 (RO)
Title: Regenerative and healing ointment with mussle protein extract
Inventor: MITITELU MAGDALENA
IPC: A61K35/56
Filed: 2003-04-22
Abstract: The invention relates to an ointment for the treatment of surface or deep wounds and burns, made by the synergistic association of yellow beeswax, wool fat, linseed oil, 0.15% calcium hydroxide solution, mussle protein extract, lemon essential oil, nipasol and 0.2% phenosept solution in an association weight ratio of: 6...9 : 4.5...5 : 38...39 : 42...43.5 : 2.5...4 : 0.8...1.5 : 0.1...0.3 : 1...1.2.
Patent RO-120932-B1 (RO)
Title: Installation and process for odorizing natural gas
Inventor: MOISIN IOAN-FRANCISC IOSIF-GAB
IPC: F17D3/12
Filed: 2003-11-25
Abstract: The invention relates to an installation for odorizing natural gas in natural gas conveyer pipe lines or distribution conduits. The installation comprises an electronic flowmeter (14) mounted to a main natural gas conduit (12), an odorizing device (11) fixed at the end of a distribution conduit (10) and introduced into the main natural gas conduit (12), a batching element (4), a working vessel (3) and an odorizing fluid reservoir (25) connected at their upper part, by means of a conduit circuit, the odorizing fluid reservoir (25) being connected to the working vessel (3) at the lower part, by means of a normally closed two-way electrically operated valve (24), the installation also comprising a normally open two-way electrically operated valve (1) connected to the working vessel (3) and to the batching element (4), and another normally closed two-way electrically operated valve (6) mounted at the upper part of an odoriser dose regulating element (7) and connected, by means of some rotating joints (8 and 9) to the lower part of the batching element and to the distribution conduit (10), respectively. The normally open two-way valve (1) shall be operated for a filling time (t1), in advance with a preset time (t3) in respect of the operation of the normally closed two-way valve (6) to be operated for a discharge time (t2), the two-way valve (1) returning to the normal state without having been operated with a preset time delay (t3) in respect of the return to the normal state in the unoperated condition of the two-way valve (6).
Patent RO-122625-B1 (RO)
Title: Process for re-using an oil-filter
Inventor: LEUCU A CONSTANTIN
IPC: B01D27/04
Filed: 2005-10-31
Abstract: The invention relates to a process for reusing an oil filter, for an internal combustion engine a motor vehicle or an agricultural or a construction equipment is equipped with. According to the invention, the process for reusing consists in dismounting the used filter by cutting an annular cap (7) by facing or milling, followed by dismounting to pieces and recovering the reusable elements, such as, the casing (1), the spring (2), the cover (8), followed by replacing the filtering cartridge (3) and the rubber packing, thereafter re-assembling the same by adding a new annular cap (7) followed by pressure closing the same.
Patent RS-53710-B1 (RS)
Inventor: HAUEL NORBERT
IPC: C07D405/12
Filed: 2011-02-21
Abstract: Jedinjenja opšte formule Iu kojojR1 označava grupuR2 označava H ili CH3,R3 i R4 zajedno sa atomom ugljenika za koji su vezani označavaju C3-6-cikloalkilen grupu, u kojoj jedna -CH2- jedinica može biti supstituisana sa atomom kiseonika,R5 označava H ili CH3,R6 označava H, F, Cl ili metil,R7 označava H, F, Cl, Br, -CN, C1-4-alkil, CF3, CHF2,R8 označava H,R9 označava F, Cl, Br, C1-4-alkil, -O- C1-4-alkil, -S- C1-4-alkil,R10 označava H,R11 označava F, Cl, Br, -CN, C1-4-alkil, CF3, CHF2,iX označava CH ili N,njihovi enantiomeri, njihovi dijastereomeri, njihove smeše i njihove soli.Prijava sadrži još 6 patentnih zahteva.
Patent RS-54616-B1 (RS)
Inventor: ALBRECHTS HARALD
IPC: B65D25/00
Filed: 2011-07-25
Abstract: Zaštitna stopa za toranjski segment ili betonski toranjski segment vetroturbine, koja ima osnovnu ploču (1) za prihvatanje jednog kraja segmenta (100) ijedinicu za montažu, za razdvojivo pričvršćivanje za prednji kraj segmenta, i najmanje jedan bočni deo (4, 8) koji je pričvršćen za osnovnu ploču (1),naznačeno time što je jedinica za montažu konstruisana kao proširiva jedinica (2) koja ima zavrtanj (3),pri čemu proširiva jedinica (2) može biti ubačena u otvor segmenta,pri čemu se proširiva jedinica (2) proširuje zavrtnjem (3) koji se zavrće i proširiva jedinica (2) može biti fiksirana u otvoru segmenta.Prijava sadrži još 3 patentna zahteva.
Patent SA-121420682-B1 (SA)
Inventor: ABDULLAH MOHAMMED K AL-OTAIBI
Filed: 2021-04-22
Abstract: إن الحذاء المقعر لعجلات السيارة (الشكل- 1) يهدف إلى حل مشكلة تغريز السيارة عندما تسير فوق الأراضي الهشة مثل الرمال والطين والثلج. وترتكز فكرة الاختراع على تصميم قطعة من المطاط حلقية الشكل ومفتوحة الطرفين بحيث تكون مقعرة الشكل للخارج (1)، ويتم تثبيت الاختراع على العجلة من الخارج بواسطة نتوؤات (2) تتطابق في الشكل والحجم مع النقش المحفور على العجلة من الخارج، وحيث أن الجهاز مصنوع من المطاط، فإن ذلك يتيح نوعاً من المرونة يسمح بحشر النتوؤات في الحفر الموجود على العجلة ويساعد على تثبيت الجهاز. كما يتم تثبيت طرفي الحلقة مع بعضهما البعض من خلال زوائد مطاطية (3) يتم ربطها من كلا الجانبين بواسطة قطعة معدنية على شكل خطاف (4). يعمل الشكل المقعر على تغيير اتجاه قوة دفع الأرض للسيارة بحيث يجعل قوة الدفع منتشرة للخارج مع انحراف الشكل المقعر، وبالتالي ستزيد قوة الدفع للأعلى. كما أن اتجاه قوة الثقل (قوة دفع السيارة للأرض) سيكون عكس قوة دفع الأرض للسيارة، أي أنه سيجمع الرمل أو الطين أو الثلج في المنتصف تحت العجلة، مما يزيد من كثافة وقوة تماسك الأرض أسفل العجلة. وعليه فإن هذا الابتكار سيمنع حدوث التغريز
Patent SA-515370154-B1 (SA)
Title: Methods for Forming Proppant-Free Channels in Proppant Packs in Subterranean Formation Fractures
Inventor: PHILIP D NGUYEN
Filed: 2015-11-16
Abstract: Methods of treating a fracture in a subterranean formation including providing a proppant-free fluid comprising a first gelling agent and providing a proppant fluid comprising a second gelling agent and proppant aggregates. The proppant-free fluid and the proppant fluid are substantially immiscible. The proppant-free fluid is continuously pumped into the subterranean formation and the proppant fluid is continuously pumped into the subterranean formation, such that the proppant-free fluid and the proppant fluid are present simultaneously in a portion of the subterranean formation but remain immiscible. The proppant aggregates are then placed into a portion of the fracture in the subterranean formation to form a proppant pack having proppant-free channels therein. Fig. 1A
Patent SA-516370362-B1 (SA)
Title: Intumescent coating composition
Inventor: BUTLER RACHEL
Filed: 2016-01-07
Abstract: The present invention relates to a thermosetting intumescent coating composition which is suitable for protecting substrates against hydrocarbon fires, for example jet fires. The coating composition can be used without a supporting mesh. The present invention also relates to substrates coated with the intumescent coating composition, and a method of protecting structures from fire.