baber/WOPTO huggingface dataset:
Patent FR-2788772-B1 (FR)
Inventor: LAVIELLE GILBERT
IPC: C07D209/08
Filed: 1999-01-26
Granted: 2001-03-02
Abstract: Indole carbonitrile derivatives (I) are new.  Indole carbonitrile derivatives of formula (I) and their isomers and salts are new.  R1, R2 = H or 1-6C alkyl;  A = 1-6C alkylene, 2-6C alkenylene or 2-6C alkynylene;  G1 = NR3R4 or heterocycloalkyl optionally substituted by Q;  R3, R4 = H, 1-6C alkyl, 3-8C cycloalkyl, (3-8C)cycloalkyl(1-6C)alkyl or optionally substituted aryl, aryl(1-6C)alkyl, heteroaryl or heteroaryl(1-6C)alkyl;  Q = 1-6C alkyl, 3-8C cycloalkyl, (3-8C)cycloalkyl(1-6C)alkyl, CN, COOH, 2-7C alkoxycarbonyl, CONQ1Q2 or aryl, aryl(1-6C)alkyl, heteroaryl or heteroaryl(1-6C)alkyl (all optionally substituted) and  Q1, Q2 = H, 1-6C alkyl, 3-8C cycloalkyl or optionally substituted phenyl or benzyl.  An Independent claim is included for the preparation of (I).
Patent FR-2789093-B1 (FR)
Inventor: PAULUS REGIS
IPC: C25C3/08
Filed: 1999-02-02
Granted: 2001-03-09
Abstract: This cathode (3) contains, within the pores in its structure, a carbon-containing product fired at a temperature of less than 1600° C., improving the erosion resistance by protecting the graphitized binder.
Patent FR-2789621-B1 (FR)
Inventor: PERNIN GERARD
IPC: B01F15/00
Filed: 1999-02-15
Granted: 2001-05-04
Abstract: The control valve (70) places the mixing chamber volume (36) under vacuum, before admission of the base materials, when the shut-off valve (64) is in the closed position.  Preferred features: The shut-off valve includes a non-return valve (66) biased to open automatically as soon as the internal pressure exceeds a preset threshold. This valve is held closed resiliently, and/or by reduced pressure in the mixing chamber. Closure of the non return valve is by a spring acting on a membrane or deformable tube. The control valve is connected to a purge circuit with vacuum pump. The control includes a first solenoid valve operating valve actuators, when the control valve is open to apply vacuum. These valves are opened when the control valve closes and aspiration of air contained in the mixing chamber, is complete. Valves are controlled pneumatically, electrically or hydraulically in accordance with their type. Further circuits with valves, recycle base material to the stock tanks when the inlet valves are closed. A solvent-flushing valve cleans the mixing chamber interior, at the end of the casting cycle. Fins (80) in the mixing chamber cause static mixing of the base material. It also contains a motor-driven turbine with vertical axis, for dynamic mixing.
Patent FR-2790162-B1 (FR)
Inventor: PAILLES JEAN CLAUDE
IPC: G06Q20/02
Filed: 1999-02-19
Granted: 2001-04-13
Abstract: Electronic payment process and system for implementing such a process.Customer equipment is mobile equipment, for example of the GSM type. In addition to the customer (C) and the merchant (M), a gateway (P) participates in the transaction, authenticates the customer and the merchant and ensures that the goods item ordered will be duly paid for. Customer equipment may work with a bank payment card.
Patent FR-2799525-B1 (FR)
Inventor: MC CORD ANTHONY
IPC: F17C13/08
Filed: 1999-10-07
Granted: 2001-12-28
Abstract: The support structure comprises a V-shaped upper cradle (3) and a base (1) comprising an upwards projecting stop (6). A support surface (5) inclined to the horizontal extends over a distance less than the diameter of the bottle (7).
Patent HU-224491-B1 (HU)
Inventor: APELER HEINER DR
IPC: C12N15/09
Filed: 2000-01-20
Abstract: A találmány tárgyát interleukin-4 (IL–4) és IL–4-muteinekelőállítására alkalmas expressziós plazmidok képezik. Szintén atalálmány tárgyához tartozik az ilyen plazmidok alkalmazásarekombináns interleukin-4 és interleukin-4- muteinek előállítására. Atalálmány szerinti plazmidok alkalmasak rekombináns interleukin-4 ésinterleukin-4-muteinek előállítására.
Patent HU-228862-B1 (HU)
Title: The use of an ingenane compound for production medicament useful for treatment cancer
Inventor: AYLWARD JAMES HARRISON
IPC: A61P17/02
Filed: 1998-08-19
Abstract: This invention relates to a compound or group of compounds present in an active principle derived from plants of species Euphorbia peplus, Euphorbia hirta and Euphorbia drummondii, and to pharmaceutical compositions comprising these compounds. Extracts from these plants have been found to show selective cytotoxicity against several different cancer cell lines. The compounds are useful in effective treatment of cancers, particularly malignant melanomas and squamous cell carcinomas (SCCs). In a preferred embodiment of the invention, the compound is selected from the group consisting of jatrophanes, pepluanes, paralianes and ingenanes, and pharmaceutically-acceptable salts or esters thereof, and more particularly jatrophanes of Conformation II.
Patent HU-221125-B1 (HU)
Inventor: GAREL LAURENT
IPC: C07C69/96
Filed: 1998-08-31
Abstract: A találmány tárgya új eljárás klór-hangyasav-észterek előállítására amegfelelő alkoholok nyomás alatt, adott esetben katalizátorjelenlétében (előnyösen katalizátor nélkül) végzett foszgénezésével.Az alkoholt és/vagy a poliolt – adott esetben oldószer jelenlétében –moláris feleslegű foszgénnel (ez 3,4–30-szoros mennyiségűfoszgén/hidroxicsoport) 0 és 200 °C közötti hőmérsékleten és(2–60)×105 Pa közötti nyomáson, adott esetben katalizátorjelenlétében, előnyösen katalizátor nélkül kezelik. ŕ
Patent HU-228175-B1 (HU)
Inventor: SZABO GABOR DR
IPC: C12Q1/68
Filed: 2008-12-15
Abstract: A találmány tárgya eljárás PCR-termékek hosszának összehasonlító citométeren. A találmány továbbá a fenti eljárás alkalmazásaira is vonatkozik, elsősorban genetikai eltérések kimutatására szolgáló eljárásra PCR-termékek hosszának citométeren történő analízisével. A találmány szerinti eljárással különböző DNS-méretváltozások vagy szekvenciabeli eltérések, így például triplet-expanziók, inszerciók, deléciók, mikroszatellita polimorfizmusok, illetve SNP-k, mutációk mutathatók ki. így a módszer alkalmas ezen genetikai jellegekkel összefüggő betegségek és egyedi jellemzők diagnosztizálására, illetve szűrésére, valamint mezőgazdasági szempontból fontos genetikai tulajdonságok szűrésére is. A találmány a fenti eljárás kivitelezésére szolgáló reagenskészletre is vonatkozik.
Patent HU-222286-B1 (HU)
Title: Substituted 7,12-dioxabenz[a]antracene derivatives, process for preparing the same and pharmaceuticals containing them
Inventor: ATASSI GHANEM
IPC: A61P35/00
Filed: 1997-11-07
Abstract: 7,12-Dioxabenz(a)anthracene derivatives of formula (I) and their isomers and addition salts are new: R1 = H or OR; R = H or 1-6C alkyl (optionally substituted by aryl or heteroaryl); R2 = H, halo, OH, 1-6C alkoxy, CHO, CF3SO3, CN, 2-7C alkyloxycarbonyl, aryloxycarbonyl, NRa'Rb' or BNRa''Rb''; Ra', Ra'' = di(1-6C alkyl)amino(1-6C alkyl); or Ra'' = 1-6C alkyl optionally substituted by OH; Rb', Rb'' = H or 1-6C alkyl; B = CO or CH2; X = N (optionally substituted by Rc') or X'; X' = CR3; Rc' = 1-6C alkyl; R3 = H, 2-7C alkoxycarbonyl or BNRa''Rb'' or CX'R2 = a group of formula (a): Y = N or CR4; R4 = H or OR''; R'' = H, 1-6C alkyl (optionally substituted by OH), aryl or heteroaryl; aryl = Ph or naphthyl (optionally substituted by halo, 1-6C alkyl, OH, 1-6C alkoxy or trihalomethyl); heteroaryl = mono- or bicyclic aromatic group containing 1-2 heteroatoms comprising O, S and/or N (optionally substituted by halo, 1-6C alkyl, OH, 1-6C alkoxy or trihalomethyl); provided that when X = N and Y = CH, or when X = CH and Y = N, or when X=Y = CH, then R1 and R2 are not both H. N2-(7,12-dioxa-3-hydroxybenzo(a)anthracene-5,6-maleimido)-N1,N1-dimeth ylethylenediamine hydrochloride is specifically claimed.
Patent HU-221994-B1 (HU)
Title: Method for producing rigid thin sheet material and roll set to realize the method
Inventor: DEELEY GEOFFREY THOMAS
IPC: B21D13/04
Filed: 1997-03-20
Abstract: Lightweight flexure-resistant thin metal sheet is produced by passing flexible thin metal sheet between rolls having defined teeth, the teeth having radiused corners so that rows of projections are formed on both faces of the sheet without damage to the surface material or the rolls.
Patent JP-2986102-B1 (JP)
Title: シ―ト状体の折重ね装置
IPC: B65H45/16
Filed: 1999-01-29
Granted: 1999-12-06
Abstract: 【要約】
【課題】  この発明の目的は、シート状体の送り量が左 右の搬送手段で累積的にくるってしまうのを防ぎ、折合 わせ位置のずれを最小限に制御可能なシート状体の折重 ね装置を提供することである。
【解決手段】  シート状体Ｑの帯状部分を折目が長手方 向に伸びる向きに折り重ねる第１および第２搬送手段 と、これら第１および第２搬送手段の送出部に送られて きた２つの側辺部を互いに固定する加工手段９１とを備 えたシート状体の折重ね装置１である。そして、シート 状体Ｑの折り重ねの合わせ位置が特定可能な継目Ｑ５を １方の側辺部で検出する第１検出部Ｐ１と、他方の側辺 部側で検出する第２検出部Ｐ２と、これら第１検出部Ｐ １および第２検出部Ｐ２の検出出力に基づいて帯状部分 の合わせ位置のずれを補正する制御手段を備えている。
Patent JP-2949491-B1 (JP)
Title: 車両用自動変速機の液圧制御システム
IPC: F16H61/06
Filed: 1998-02-24
Granted: 1999-09-13
Abstract: 【要約】
【課題】  変速制御が行われる際、変速過程における一 時的な中立状態が発生することを防止し変速衝撃を減少 させ、また、エンジンの駆動損失を最少化する車両用自 動変速機の液圧制御システムを提供する。
【解決手段】  液圧分配手段は、３−４シフトバルブ４ ２と；２−３／４−３シフトバルブ３８と；１−２シフ トバルブ３６と；シフトコントロール手段から供給され た液圧を各変速段に対応する摩擦要素に付加的に供給す ることにより、各摩擦要素が作動し始める作動タイミン グを精密に制御し、また、前記シフトコントロール手段 から供給された液圧をライン圧調節手段に供給して高速 段でライン圧を低下せしめるコントロールスイッチバル ブ４０と；トランスミッション制御ユニットの制御信号 によって前記コントロールスイッチバルブを制御するソ レノイドバルブＳ１〜Ｓ６とを具備することを特徴とす る。
Patent WO-0178501-B1 (WO)
Title: Nichoir aquatique pour animal familier
Inventor: PARK GUN-YOUNG
IPC: A01K63/00
Filed: 2001-04-10
Abstract: Cette invention a trait à un logement pour animal familier. Il existe des logements pour animal familier et le but de cette invention est de les améliorer afin d'en faire un jouet et ce, par installation de « poumons » en milieu aquatique avec plusieurs fonctions supplémentaires. Plusieurs procédés sont présentés dans le cadre de cette invention. Il est possible d'envisager deux moyens de fournir de l'oxygène au logement pour animal familier, en l'occurrence, (1), utiliser un conduit d'aspiration d'air ainsi qu'un générateur d'oxygène ou une pompe à air (le générateur d'oxygène selon l'invention utilise une pompe à air), (2), utiliser le principe de flottabilité pour fournir de l'air à partir du fond du dispositif. Divers procédés sont également présentés dans le cadre de cette invention afin d'éviter que ce logement pour animal ne s'enfonce dans l'eau ou qu'il ne flotte à la surface, relatifs, notamment, à l'utilisation d'un équipement de transfert en va-et-vient vertical, d'un globe de flottabilité et d'un cordon.
Patent NL-1042722-B1 (NL)
Title: Protective cover
Inventor: WILHELMUS MARTINUS DE LAAT
IPC: B60J11/04
Filed: 2018-01-22
Granted: 2019-07-29
Abstract: A cover system for protecting an object, such as a vehicle. The cover system has a cover with airway chambers which have inlets for communicating with other airway chambers. The cover has securing means for securing the cover to the object. The cover consists of a top portion for covering the top of the object, and side portions for covering the sides of the object. The cover system is portable easily inflatable and can be stowed away in a little package in a vehicle.
Patent NL-1043206-B1 (NL)
Title: Chocoladeproduct, vervaardigd met behulp van een eenmalig te gebruiken gietvorm die deel uitmaakt van het chocoladeproduct
Inventor: ETIENNE HERMAN WALTER BLONDEEL
IPC: B65D85/60
Filed: 2019-03-25
Granted: 2020-10-02
Abstract: Werkwijze voor het vervaardigen van een chocoladeproduct, omvattende (a) het voorzien in een gietmal (1) van wegwerp- 5 materiaal, omvattende één of meer vormholten, (b) het voor- zien in chocolade (2) en middelen om die chocolade tot bo- ven zijn smeltpunt te verwarmen, in de één of meer vormhol- ten van de gietmal te gieten en vervolgens te laten afkoe- len tot beneden zijn smeltpunt, (c) het voorzien in afdek- 10 folie (3), bijvoorbeeld van aluminium, en middelen om met die afdekfolie over de één of meer vormholten van de giet- mal aan te brengen. De uitvoeringsstappen omvatten (d) het verwarmen van de chocolade tot boven zijn smeltpunt, (e) het in de één of meer vormholten van de gietmal gieten van 15 de gesmolten chocolade, (f) het laten afkoelen van de cho- colade tot beneden zijn smeltpunt, en (g) het aanbrengen van de afdekfolie over de één of meer vormholten van de gietmal. (FIG. la) 20 1043206
Patent NL-2013633-B1 (NL)
Title: Werkwijze voor het koppelen van langwerpige elementen, alsmede een systeem.
Inventor: MICHAËL JOHANNES MANFRED VAN KERKHOF
IPC: E06B3/263
Filed: 2014-10-14
Granted: 2016-10-04
Abstract: Werkwijze voor het koppelen van een langwerpig massief element (3), vervaardigd uit metaal en/of een legering en met een in hoofdzaak rechthoekige dwarsdoorsnede, en een langwerpig thermisch isolerend element (4) met een in hoofdzaak rechthoekige dwarsdoorsnede, waarbij een laterale langszijde van één van beide elementen (3, 4) wordt voorzien van ten minste één nok (13), en een laterale langszijde van het andere element wordt voorzien van ten minste één met genoemde nok (13) geassocieerde uitsparing (14), zodanig dat de ten minste ene nok (13) opneembaar is in de met die nok geassocieerde uitsparing (14), waarbij de elementen (3, 4) via genoemde nok (13) en uitsparing (14) aan elkaar worden gekoppeld, waarbij tijdens het koppelen genoemde nok (13) in hoofdzaak parallel aan een dikterichting van beide elementen (3, 4) in de uitsparing (14) wordt bewogen. Verder verschaft de uitvinding een systeem.
Patent NL-2014041-B1 (NL)
Title: Method for manufacturing a thin film solar cell arrangement and such a thin film solar cell arrangement.
Inventor: JOHAN BOSMAN
IPC: H01L31/20
Filed: 2014-12-23
Granted: 2016-10-12
Abstract: Solar cell arrangement of a thin film solar cell array on a substrate; each solar cell being layered with a bottom electrode, a photo-voltaic active layer, a top electrode and an insulating layer. A first trench and a second trench parallel to the first trench at a first side, separate a first solar cell and an adjacent second solar cell. The first and second trenches are filled with insulating material. The first trench extends to the substrate. The second trench extends into the photo-voltaic active layer below the top electrode. A third trench extending to the bottom electrode is between the first and second trench. A fourth trench extending to the top electrode is at a second side of the first trench. The third and fourth trench are filled with conductive material. A conductive bridge connects the third trench and the fourth trench across the first trench.
Patent NL-2016000-B1 (NL)
Title: Composition for the treatment of keratosis.
Inventor: ROBERT STAL
IPC: A61K45/06
Filed: 2015-12-22
Granted: 2017-07-03
Abstract: The invention pertains to a composition for the topical treatment of a keratosis, preferably a wart, comprising a halogenated acetic acid and an alpha-hydroxy acid. The invention further pertains to a dermal patch comprising this composition, and to kits comprising this composition and a patch, as well as to liquid plasters comprising the composition. Also, the invention pertains to the treatment of keratosis by contacting the keratosis with the composition.
Patent NL-2016947-B1 (NL)
Title: A lower leg treatment device and method of operating thereof
Inventor: BARRY JOHANNES VAN EIJDEN
IPC: A61H35/00
Filed: 2016-06-13
Granted: 2017-12-21
Abstract: This invention relates to a lower leg treatment device comprising: - a water reservoir to hold a quantity of water and to receive a lower leg of a person; - a vibration frame to support the water reservoir; - a support frame to support the vibration frame from the ground, wherein vibration isolation elements are provided in between the support frame and the vibration frame; - an actuation system to vibrate the vibration frame; and - a cooling system arranged on the support frame and in fluid communication with the water reservoir to provide cooled water to the water reservoir.
Patent NL-2018997-B1 (NL)
Title: Coil structure and magnetic component
Inventor: KOSUKE IKEDA
IPC: H01F30/10
Filed: 2017-05-30
Granted: 2018-05-04
Abstract: A coil structure has a coil 150 including conductors, and insulating sheets 100 provided between the conductors included in the coil150. Two or more insulating sheets 100 are provided. The two or more insulating sheets 100 have two or more types of insulating sheets 100 having at least different thermal conductivity or different permittivity.
Patent NL-2025194-B1 (NL)
Title: Voorloopleuninghouder voor een steigersysteem
Inventor: FRANCISCUS JOZEF LEONARDUS HUBERTUS BRINKMANN
IPC: E04G7/34
Filed: 2020-03-23
Granted: 2021-10-20
Abstract: Voorloopleuninghouder voor een steigersysteem ingericht voor samenwerking met leuningen die aan een longitudinaal einde zijn voorzien van een bevestigingshaak.  De voorloopleuninghouder is voorzien van een eerste en een tweede, zich loodrecht op een montageplaat en een opsluitplaat uitstrekkend dwarsverbindingselement,    die op afstand van elkaar zijn geplaatst en tezamen een bevestigingshaakopneemruimte begrenzen voor het in de bevestigingshaakopneemruimte opnemen van de bevestigingshaak van een eerste leuning. De afstand tussen het eerste en het tweede dwarsverbindingselement is zodanig dat, indien de bevestigingshaak in de bevestigingshaakopneemruimte is opgenomen en de eerste leuning verder niet wordt ondersteund,  een nis aan een radiale binnenzijde van de bevestigingshaak op het eerste dwarsverbindingselement rust en een radiale buitenzijde van de bevestigingshaak tegen het tweede dwarsverbindingselement aanligt, waardoor de eerste leuning geheel door de enkele voorloopleuninghouder wordt ondersteund.
Patent NL-2026932-B1 (NL)
Title: Preparation method for zein-degrading protease and application thereof
Inventor: KE PAN
IPC: C12P21/02
Filed: 2020-11-19
Granted: 2021-07-20
Abstract: The present invention discloses a preparation method for a zein-degrading protease and an application thereof, and belongs to the technical field of molecular biology. The preparation method for a zein-degrading protease disclosed by the present invention successfully optimizes the gene sequence of a zein-degrading protease by using modern molecular technology, and constructs an expression vector pPlCZdA-ZDP that can express the zein-degrading protease in vitro outside yeast; and the zein-degrading protease can be prepared by using the vector and Pichia pastoris, thereby providing technical support for the application of the zein-degrading protease in production.
Patent NL-2027349-B1 (NL)
Title: Modular post with a functional pole module
Inventor: RICARDO JANEIRO
IPC: H05B47/19
Filed: 2021-01-19
Granted: 2022-07-25
Abstract: A modular post comprising a plurality of pole modules arranged one above the other along a 5 central axis, said pole modules comprising a functional pole module for receiving and/or transmitting signals; said functional pole module comprising: a housing comprising a lower, middle, and upper sections; a functional unit comprising a wireless communication means, and a power and data interface configured for being connected to a power source and to the wireless communication means, for powering the wireless communication means, for powering another 10 functional unit of another functional pole module, and for transmitting and/or receiving data to/from the another functional unit; wherein the lower section comprises a coupling interface for coupling the functional pole module to another pole module located below along the central axis, and/or wherein the upper section comprises a coupling interface for coupling the functional pole module to another pole module located above along the central axis. 15 Figure 1
Patent NL-2028077-B1 (NL)
Title: Energy-saving and precise integrated irrigation system of water, fertilizer and pesticide, and control method thereof
Inventor: LU LAN
IPC: A01M7/00
Filed: 2021-04-27
Granted: 2022-02-21
Abstract: The invention discloses energy-saving integrated irrigation system of water, fertilizer and pesticide comprising: water pump, main pipe, water supply pipe for fertilizer, water supply pipe for tank, fertilizer machine, tank, air-out pipe, water outlet pipe of tank, ﬁeld pipe-net, ﬁrst, second, third, fourth and ﬁfth solenoid valve, metering equipment, branch pipe, pesticide machine, water supply pipe for pesticide, water pump is connected with main pipe; water supply pipe for pesticide, water supply pipe for fertilizer, water supply pipe for tank, and branch pipe are arranged on main pipe; tank is connected with water supply pipe for pesticide, water supply pipe for fertilizer, water supply pipe for tank, air-out pipe, water outlet pipe of tank. The water and fertilizer or pesticide are mixed into fertilizer or pesticide solution in tank according to irrigation requirements, tank is pressurized for irrigating crops by ﬁeld pipe-net for accurate miXing, irrigation amount, and irrigation.
Patent NL-2029064-B1 (NL)
Title: Gasdoorlatende verharde weg, wegdekplaat en werkwijze voor het leggen ervan
Inventor: JACOBUS GERHARD NICOLAAS SCHOTANUS
IPC: E01C5/00
Filed: 2021-08-27
Granted: 2023-03-15
Abstract: Beschreven wordt een verharde weg (1) met een wegrichting en op een ondergrond opgebouwd uit in de wegrichting elkaar opvolgende wegdekplaten (2, 3) en tussen elkaar opvolgende wegdekplaten Iiggende kunststof profielen (4), waarbij de twee elkaar opvolgende wegdekplaten bij hun tegenoverliggende einden (5, 6) ieder zijn voorzien van een of meer groeven (7), voor het daarin opnemen van een of meer kunststof profielen die zich in groeven van twee opvolgende wegdekplaten uitstrekken voor het vormen van een messing en groef vormige verbinding (8) tussen de opeenvolgende wegdekplaten, welke verbinding twee elkaar opvolgende wegdekplaten koppelt voor het vormen van de verharde weg, met het kenmerk dat tussen de elkaar opvolgende en met elkaar gekoppelde wegdekplaten middelen zijn opgenomen voor het uitwisselen van gas tussen de ondergrond en de omgeving boven de verharde weg. Voorts wordt een wegdekplaat, en een werkwijze beschreven voor het leggen en het onderhoud van een dergelijke verharde weg.
Patent RO-110045-B1 (RO)
Inventor: GALEA IONEL
IPC: B28C5/20
Filed: 1994-08-10
Abstract: Sistem de antrenare a betonierelor,
poziționat la partea inferioară a unei cuve
amestecător, a betonierei, basculându-se simultan
cu aceasta, fiind alcătuit dintr-un reductor melcat,
care preia mișcarea de rotație a unui motor, care o
deviază cu un unghi de 90° față de axa orizontală
a betonierei, transmițând-o direct, prin intermediul
unui cuplaj, axului unei cuve amestecător.
Patent RO-113676-B1 (RO)
Title: Biaxial coupling
Inventor: MARIN DAN MIHAIL
IPC: F16D3/04
Filed: 1995-01-27
Abstract: The invention refers to a biaxial coupling designed to transmit the rotating movement and torque from a driving shaft to a non-aligned driven shaft,  with a fixed or variable position.  According to the invention, the coupling is made up a driving half coupling (A) which has some symmetrical arms (1 and 2) and a driven half coupling (B), similar to the driving half coupling (A), and rotated against this by 90 degrees having some symmetrical arms (3 and 4).  Connection of the driving half coupling (A) and driven half coupling (B) is achieved with the help of an intermediary piece (5).
Patent RO-116665-B1 (RO)
Title: Down-hole piston pump
Inventor: TODOR VIOREL
IPC: F04B47/02
Filed: 1997-03-20
Abstract: The invention relates to a down-hole piston pump carried down by means of sucker rods, employed in oil wells for crude oil production. According to the invention, the down-hole pump ensures the sealing and guiding of the drive rod of the pump piston due to having provided the sealing and guiding assembly ( A ) of the drive rod ( 4 ) with an adjusting sleeve ( 5 ) whose lower side extends inside another sealing sleeve ( 7 ) having some V-shaped profile fittings (11 ) fixed therein. At the lower side, the sealing sleeve ( 7 ) is provided with a guiding sleeve (12 ) and further connected to the pump discharge valve ( C ) whose sealing balls ( 14 ) are kept inside the sealing space by an apron ( 13 ), the piston pump assembly ( B ) comprising an upper piston sub-assembly ( B ' ) and a lower piston sub-assembly ( B'' ) interconnected by a collar ( 30 ). The upper and lower sub-assemblies ( B' and B") comprise some central sleeves (21 and 31 ) directly fastened onto the drive rod ( 4 ) and provided with some guiding fittings (25, 27, 25' and 27 " ) and some oil savers ( 23, 23' ).