baber/WOPTO huggingface dataset:
Patent LU-502974-B1 (LU)
Title: Anchor rod and application method thereof
Inventor: XU CHAO
IPC: E21D21/00
Filed: 2022-10-11
Granted: 2024-01-15
Abstract: Disclosed is an anchor rod and an application method thereof. The anchor rod comprises: one end of an anchor rod body is open, the other end is closed, and overflow holes are formed in the side wall of the anchor rod body; the closed end of the anchor rod body is limited in the hole; two packers are sleeved on the anchor rod body; each of the packers comprises an annular capsule with a grouting hole, and the annular capsule is sleeved on the anchor rod body; and the two annular capsules can be used for separating the hole into two annular sealing zones. In the present invention, the hollow anchor rod body and the packers are arranged, and the overflow holes are formed in the anchor rod body, so as to ensure that the bottom zone of the hole can be filled fully, and the anchoring effect of the anchor rod body can be improved; and since the two packers are arranged, the anchoring capability of the anchor rod body can be further improved, and therefore, the anchor rod body can maintain good axial tensile force.
Patent LU-504328-B1 (LU)
Title: Soil-air heat exchange system coupled with hot air and a heat pump and operation method thereof
Inventor: WANG CHUANQING
IPC: A01G9/24
Filed: 2023-05-26
Granted: 2023-12-01
Abstract: The invention relates to a soil-air heat exchange system coupled with hot air and heat pumps for greenhouses and an operation method thereof. The heat exchange mechanism comprises an air inlet pipe, an air outlet pipe and a plurality of heat exchange pipes laid underground in the shed, wherein a fan is installed at the upper end of the air inlet pipe; the heat pump unit comprises a heat pump, a pumping well and a recharging well, wherein the water inlet of the heat pump is communicated with the pumping well through a heat pump water inlet pipe, the water outlet of the heat pump is communicated with the recharging well through a water outlet pipe, and the air outlet of the heat pump is communicated with a heat exchange pipe through a heat pump air outlet pipe; the control system comprises a control host.
Patent NO-305222-B1 (NO)
Inventor: JOHANSSON STIG
IPC: A61C8/00
Filed: 1991-05-22
Abstract: PCT No. PCT/SE89/00688 Sec. 371 Date May 15, 1991 Sec. 102(e) Date May 15, 1991 PCT Filed Nov. 24, 1989 PCT Pub. No. WO90/05499 PCT Pub. Date May 31, 1990.A device for supporting artificial teeth, which device is intended to be secured to anchoring elements in a jaw, includes tubes, which are secured to the anchoring elements, and a bridge formed as an integral piece and fixed to the end surfaces of the tubes. The end surface of each tube is in the same plane as the corresponding engagement surface on the bridge. For making the device, one or more planes are determined, giving the bridge a suitable position in relation to the anchoring elements, and the tubes are cut such that their end surfaces will be located in the planes when the device has been secured to the anchoring elements. Each of the engagement surfaces of the bridge is thereafter processed so as to be located in the same plane as the end surface of the corresponding tube, and the bridge is finally secured to the tubes by welding.
Patent NO-303631-B1 (NO)
Inventor: HUANG JAMIN
IPC: C07D401/12
Filed: 1992-04-28
Abstract: Pyrazoles of formula (I) are new. In (I), R1 = CN, NO2, halo, formyl, alkycarbonyl or cycloalkylcarbonyl; R2 = halo, alkyl, haloalkyl, alkoxy, haloalkoxy, NO2, thiocyanate, (or optd. mono- or di-alkyl substd.) sulphamoyl, or aminocarbonyl, alkoxycarbonyl or opt. substd. R9S(O)n; n = 0 to 2; R9 = alkyl, haloalkyl, cycloalkyl, halocycloalkyl, cyclo-alkyl- alkyl or halocycloalkyl alkyl; R3 = H, alkyl, alkoxy, alkylthio or di alkylamino; R4 = phenyl or 5-6 membered O,S and/or N, heteroaryl both opt. substd with -OH or a salt, -SH or a salt, halo, CN, NO2, alkyl, haloalkyl, alkoxy, -O- alkyl-O-, -O-halo alkyl-O-, haloalkoxy, alkanoyloxy, phenolic, tri-alkylsiloxy, phenyl, alkyl-S(O)n, halo alkyl-S(O)n, NR10R11, COR12, SO2R13; R10,R11 = H, alkyl, alkanoyl or haloalkanoyl; R12 = NR10R11 alkoxy, alkylthio, OH or a salt, H, alkyl or halo alkyl; R13 = NR10R11, alkoxy, alkylthio or OH or a salt; R5 = halo or alkyl; R6, R8 = H or F; R7 = H, alkyl, haloalkyl, alkoxy, haloalkoxy, CN, NO2, alkylcarbonyl, haloalkylcarbonyl, alkyl-S(O)n or halo alkyl-S(O)n; X = N or CR14; R14 = H, halo, CN, NO2, alkyl, alkylthio or alkoxy; where alkyl = 1-4C alkyl and cycloalkyl = 3-7C cycloalkyl. 17 Cpds. (I) are claimed e.g. 1-(2,6-dichloro-4-trifluoro methyl phenyl)-3-cyano-4- trifluoromethylsulphenyl-5- (4-hydroxy-3-methoxyphenyl) methylideneimino)pyrazole (Ia).
Patent NO-301664-B1 (NO)
Inventor: DRENTHAM-SUSMAN HECTOR FILLIPU
IPC: F01C1/344
Filed: 1994-04-18
Abstract: PCT No. PCT/GB92/01917 Sec. 371 Date Apr. 15, 1994 Sec. 102(e) Date Apr. 15, 1994 PCT Filed Oct. 19, 1992 PCT Pub. No. WO93/08374 PCT Pub. Date Apr. 29, 1993.The present invention relates to a wing motor of the type suitable for use in down-hole drilling applications. The motor comprises a generally tubular casing 1, 2 and a rotor 4 mounted for rotation within the casing 1, 2 with a chamber 18 therebetween. The casing 1, 2 is provided with angularly spaced apart inlets and outlets 19, 20 for ingress of pressurized working fluid from an inlet conduit 19a in the casing 1, 2 into the chamber 18 and egress of the fluid to an outlet conduit 20a separated from inlet conduit 19a by a wall 21. The casing 1, 2 has a generally radially extending wall 3 extending more or less into contact with the rotor 4 at an angular position between the outlet 20 and the inlet 19. The rotor 4 has a plurality of angularly spaced apart wings 15 mounted in generally radially extending recesses 16 so as to be displacable therein from a generally radially projecting position in substantially sealing engagement with the inner casing 2 to a generally retracted position when traversing the radially extending wall 3 which have a rising portion 3a which progressively approaches the rotor 4, and a falling portion 3d which recedes from the rotor 4. According to this invention the generally radially extending recesses 16 have trailing the walls 102 which extend, at least at radially outward portions, at an angle of at least approximately 90 DEG  with respect to the the rising portions 3a of the walls so that, in use of a motor, the wings 15 are retractable upon engagement with the rising portions 3a substantially free of resistance from engagement axially against the side walls of the recesses 16.
Patent NO-303665-B1 (NO)
Inventor: OGURA YUICHIRO
IPC: A61F9/00
Filed: 1994-10-25
Abstract: This invention relates to a sclera plug consisting of a lactocopolymer, a sclera plug containing a drug and designed so as to release the drug gradually into a vitreous body, and a sclera plug used to cure or prevent a retinal disease by utilizing the sustained release action of the drug and promote the healing of a vitreous body after a surgical operation thereon. The sclera plug according to the present invention closes effectively an opening made during a surgical operation on a vitreous body, and need not be removed after the surgical operation. When this sclera plug is used, a drug can be released gradually for a long period of time into intraocular tissues into which the permeating of a drug is otherwise very difficult, so that the administration of a drug can be carried out safely and effectively. Moreover, a simple clinically applicable administration method can be found by utilizing a sclera cut made during a surgical operation on a vitreous body. <IMAGE>
Patent NO-304739-B1 (NO)
Inventor: BONNERT ROGER VICTOR
IPC: A61P9/00
Filed: 1994-11-24
Abstract: There are disclosed compounds of formula (I), wherein X and Y independently represent -S(O)n-or -O-; n represents 0, 1 or 2, p, q and r independently represent 2 or 3, Z represents phenyl optionally substituted by halogen, -OR<1>, -NO2 or -NR<2>R<3>; or a 5 or 6-membered N, O, or S containing heterocycle, and R<1>, R<2> and R<3> independently represent hydrogen or alkyl C1-6, and pharmaceutically acceptable derivatives thereof. Processes for their production and pharmaceutical compositions and methods of treatment involving their use are also described.
Patent NO-313173-B1 (NO)
Inventor: GUERRERO ARTURO
IPC: A23L27/21
Filed: 1995-03-27
Abstract: A process for enhancing the salty taste of a food or beverage containing a less than normal amount of sodium chloride which comprises adding to the said food or beverage a sodium chloride taste enhancing amount of a proteolysed protein source.
Patent NO-317277-B1 (NO)
Inventor: SAND KJELL
IPC: D01G1/10
Filed: 1997-01-08
Abstract: PCT No. PCT/SE95/00841 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed Jul. 11, 1995 PCT Pub. No. WO96/02474 PCT Pub. Date Feb. 1, 1996Apparatus for feeding one or more fiber threads, e.g., of glass, at an adjustable feeding rate. At least two synchronously driven feed rollers forming at least one nip for the fiber thread and consisting of a first motor driven roller and a second co-rotating roller. The motor driven roller and/or the co-rotating roller are/is provided with one or more, each in its respective peripheral slot in the cylindrical mantle surface of the roller housed O-ring of an elastic incompressible material, e.g., rubber. The O-ring bears on the peripheral surface of the adjacent roller to transmit the rotary motion by means of friction.
Patent NO-311536-B1 (NO)
Title: Dobbel underrömmer
Inventor: MCGARIAN BRUCE
IPC: E21B47/09
Filed: 1997-04-25
Abstract: En 2-trinns underrømmer for bruk i en underjordisk brønnboring omfatter et legeme (2) i ett stykke som har øvre og nedre blader (5A,5B) og (6A.6B) montert i spalter (3,4) utformet vinkelrett på hverandre i legemet Adskilte øvre og nedre stempelenheter er anordnet for å drive bladene (5 A.5B) og (6A.6B) respektivt fra en oppbevaringsstilling hvori de befinner seg stort sett fullstendig inne i spaltene (3,4) til en brukksstilling som vist i figuren. Hvert blad omfatter med fordel en stål arm som har påmontert en hoveddel av Wolfram-nikkel-kobolt matrise hvori innsatser av diamant og/eller Wolframkarbid er innlagt Et signal blir gitt til overflaten om at bladene er i deres utkjørte stilling ved endring av boreslam-trykket.
Patent NO-322048-B1 (NO)
Inventor: STJERNFELT ULLA
IPC: A61K38/55
Filed: 1997-05-05
Abstract: PCT No. PCT/SE95/01228 Sec. 371 Date Dec. 18, 1995 Sec. 102(e) Date Dec. 18, 1995 PCT Filed Oct. 19, 1995 PCT Pub. No. WO95/14084 PCT Pub. Date May 17, 1996This invention relates to a storage stable concentrated water-solution for infusion having a pH in the range from 1.0 to 2.5 and containing an active thrombin inhibitor having the formulaHOOC-CH2-Ywherein Y is (R)-Cha-Pic-Nag or (R)-Cgl-Aze-Pab, as a salt or as a free base thereof, a process for their preparation and to a method for treatment of a patient in need of said formulation.
Patent NO-321190-B1 (NO)
Inventor: BECK-LAURITZEN PETER
IPC: A23K50/80
Filed: 1998-11-10
Abstract: A fish feed composition for carnivorous fish, having a composition essentially corresponding to that of the natural prey of the fish is provided. The feed comprises a wetting agent and/or an emulsifying agent, 30-70 wt.% protein, 20-50 wt.% of lipid and 0-10 wt.% carbohydrate. In particular, the carbohydrate is at the most 2 wt.%. Methods for preparing the feed are also provided.
Patent AT-512703-B1 (AT)
Title: Kolben-Zylindereinheit
IPC: B21C37/15
Filed: 2012-04-12
Granted: 2014-06-15
Abstract: Kolben-Zylindereinheit für Verstellelemente mit einem,innerhalb eines Zylindermantels (1) entlang der Zylinderachse(Z) geführten Kolben (3), bei der erfindungsgemäßvorgeschlagen wird, dass der Zylindermantel (1) zumindestabschnittsweise aus einem wickelbaren, flächigen oderfolienförmigen Werkstoff gefertigt ist, der beginnend in einemradialen Abstand um die Zylinderachse (Z) gewickelt ist.Mithilfe der Erfindung wird somit eine Kolben-Zylindereinheitinsbesondere für Leichtbauzylinder bereitgestellt, die imVergleich zu herkömmlichen Kolben-Zylindereinheiten beivergleichbarer Druck- und Zugbeständigkeit über ein kleineresGewicht verfügt, da sie je nach Belastungsfall präzise untergeringstmöglichem Materialeinsatz gefertigt werden kann. Dieerfindungsgemäßen Kolben-Zylindereinheiten bieten dabeiKostenvorteile in der Herstellung, sowie Flexibilitäthinsichtlich geänderter Ausführungsformen.
Patent AT-508168-B1 (AT)
Title: Selbstfärbe-handstempel
IPC: B41K1/36
Filed: 2009-04-17
Granted: 2011-08-15
Abstract: Selbstfärbe-Handstempel (1) mit einem Rahmen (2) aus Metall, der zwei durch eine obere Deckwand miteinander verbundene Seitenwände (6, 7) aufweist, und mit einem bei Benützung relativ zum Rahmen (2) entgegen Federkraft abwärts bewegbaren Betätigungsbügel (3) aus Metall, der zwei von einem oberen Steg abstehende, entlang der Seitenwände (6, 7) des Rahmens (2) verschiebbare Schenkel aufweist, die mit einem innerhalb des Rahmens (2) auf und ab bewegbar und wendbar angeordneten Typenaggregat (11) gekuppelt sind, wobei an der Außenseite jeder Seitenwand (6, 7) des Rahmens (2) in deren oberem Bereich zwei zueinander parallele, am jeweiligen in Ansicht rechteckigen, im Vergleich zur Rahmen-Seitenwand (6, 7) schmäleren Bügel-Schenkel (4, 5) seitlich anliegende Führungsstege (27, 28) durch Verrasten angebracht sind.
Patent AT-502238-B1 (AT)
Inventor: EBNER PETER DIPL ING
IPC: F27B9/00
Filed: 2005-05-12
Granted: 2007-12-15
Abstract: A method is described for batchwise heat treatment of goods to be annealed which are heated in a heating chamber after scavenging air with a scavenging gas under protective gas to a predetermined treatment temperature, with the protective gas being conveyed through the heating chamber depending on the occurrence of impurities in different quantities. In order to enable the economic use of protective gas, it is proposed that the protective gas which is withdrawn from the heating chamber after the main occurrence of impurities and which is loaded with a residual quantity of impurities is conveyed, optionally after intermediate storage, into the heating chamber during the main occurrence of impurities of a subsequent batch before non-loaded protective gas is introduced into the heating chamber.
Patent BG-61009-B1 (BG)
Title: Spring-type anchor
Inventor: ANGELOV ANGEL I
IPC: F16B13/00
Filed: 1992-11-23
Abstract: The anchor is used for fastening in different materials used in civil and mechanical engineering as a fastener link. It secures safe connection having a fixed spring spiral thus avoiding the effect of the depth of the hole from the thickness and the material of the foundation. The anchor consists of a stem (5) with threading (3) and a spring spiral (6) wound over the threading (3) which smoothly goes into the cylindrical part (2) fitted at the end of stem (1). The diameter of the cylindrical part (2) is equal to the outer diameter of the threading (3), and one of the ends of the spring spiral (6) is radially bent and comes out of its outer diameter.
Patent BG-61006-B1 (BG)
Title: Method for opencast mining of horizontally and slope-striking strata occurrences having irregular forms
Inventor: KOSEKOV IVAN KH
IPC: E21C47/04
Filed: 1993-05-25
Abstract: The method is used in opencast mining of occurrences having irregular forms and horizontally or slope-striking layers. It can effectively mine the ores or minerals with reduced capital investments, operational coefficient of stripping and volume of the foundation pit increasing the freed land for reclamation. The method consists of mining on a two-strip scheme after which works on one of the strips (2) is abandoned and it is used as inlet and transportation-out trench for the other strip (1). Work continues in strip (1) using the dovetail scheme. After mining of the ore or mineral to the boundary of the abandoned strip (2) works in it are resumed, and earthfilling operations are concentrated in the foundation pit of the already mined strip (1).
Patent BG-61049-B1 (BG)
Inventor: MEIER WERNER
IPC: G21C3/334
Filed: 1993-12-15
Abstract: Елементът има фиксираща плоча (5) с надлъжен отвор (10), през който преминава фиксиращо
стебло (8а,86), което приляга чрез застопоряващ зъб (11а,11б) към външната страна на
фиксиращата плоча (5). Зъбът (11 а, 116) е монтиран радиално на намираща се на външната
страна на плочата (5) блокираща пластина (9), на която е монтирана коаксиална спрямо стеблото
(8а,86) и опираща се в края му покривна втулка (16а,166). Втулката (16а,166) преминава свободно
през разположена над блокиращата пластина (9) опорна шайба (15), а една първа притискателна
пружина (17а, 176) се опира на втулката (16а,166) и на опорната шайба (15). Една втора
притискателна пружина (23) се опира на шайбата (15) и на пластината (9). Двете притискателни
пружини (17а,17б и 23) са предварително натегнати чрез обтегач (14), който е закрепен на
плочата (5), захванат към шайбата (15) и преминава свободно през нея.
Patent BR-PI0213221-B1 (BR)
Inventor: CRUZ ELOY E URBANO
IPC: A23L27/00
Filed: 2002-10-07
Abstract: The invention relates to a method for the preparation of a stable alkali metal lactate in powder form, the product of said preparation, functional pre-mixes for foodstuff comprising said stable alkali metal lactate powder, and foodstuffs comprising said stable alkali metal lactate powder. In the method according to the invention, a concentrate that contains alkali metal lactate is processed, with cooling, in a mixer/extruder to form a powder of the alkali metal lactate. According to the invention the alkali metal lactates in powder form are stable for at least 48 hours.
Patent BR-PI9814658-B1 (BR)
Title: processo para preparar um derivado dimetóxi de 10-desacetilbacatina iii ou derivado da 10-desacetilbacatina iii esterificado na posição 13
Inventor: PAUZE DENIS
IPC: C07D305/14
Filed: 1998-11-16
Abstract: "processo de alquilação direta, em uma única etapa, em posição 7 e 10 simultaneamente das duas funções hidroxilas da 10-desacetilbacatina ou dos derivados desta última em posição 13". a presente invenção refere-se a um novo processo de preparação de derivados dialcoxilados da classe dos taxóides por alquilação direta das duas posições 7 e 10 da desacetilbacatina ou dos derivados esterificados na posição 13 desta última.
Patent CH-698454-B1 (CH)
Title: Vorrichtung zur Verbrennung fester Brennstoffe.
Inventor: KASTENAUER ALFRED
IPC: F24C15/34
Filed: 2006-03-07
Abstract: Die Erfindung betrifft eine Vorrichtung zur Verbrennung fester Brennstoffe mit einer Brennkammer (2) und einem Sichtfenster (1), das einen Einblick in die Brennkammer (2) ermöglicht. Der Wärmeeintrag in den umgebenden Raum und die Gefahr von Verbrennungen kann wesentlich dadurch verringert werden, dass eine zwischen zwei Stellungen bewegliche Wärmedämmplatte (5) vorgesehen ist, die in einer der Stellungen das Sichtfenster (1) abdeckt.
Patent CH-702950-B1 (CH)
Inventor: WEISSBACHER EDGAR
IPC: B65D5/10
Filed: 2011-03-31
Abstract: Die Erfindung betrifft eine Faltschachtel mit einer an einem Zuschnitt (10) der Faltschachtel angeordneten Stecklasche (47), die mit einer Stecköffnung (43) zusammenwirkt. Erfindungsgemäss ist es vorgesehen, dass die Stecklasche (47) einen in die Stecköffnung (43) einschiebbaren Abschnitt (48) aufweist, an dem wenigstens ein gelenkig an der Stecklasche (47) angelenkter Sicherungsabschnitt (52, 53) angeordnet ist, der gegen den einschiebbaren Abschnitt (48) rückfaltbar ist und der mit der Stecköffnung (43) zusammenwirkt.
Patent ES-2067411-B1 (ES)
Inventor: SITGES MENENDEZ FRANCISCO J
IPC: C25C7/08
Filed: 1993-06-18
Granted: 1995-11-01
Abstract: A cathode for the electrolytic deposition of non-ferrous metals, consisting of a plate (1) which, starting from one at least one of its vertical edges, is provided on both sides with coinciding zones (5) of dielectric material situated at the height of impingement of a number of penetrators which cause the upper edge of the deposited layers of zinc to detach. The plate (1) is provided with a slot (7), coinciding with said regions of dielectric material, which is occupied by a flat piece (5) of dielectric material, equal in thickness to the plate (1) and with surfaces which are flat and coplanar with those of said plate (1). The piece (5) and the slot (7) are provided with means of preventing the movement of said piece in any direction. <IMAGE>   <IMAGE>
Patent ES-2071582-B1 (ES)
Title: Suministro de bolsas sueltas enrrolladas.
Inventor: BEPERET GARASA JESUS
IPC: B65D33/00
Filed: 1993-09-07
Granted: 1996-01-16
Abstract: SUMINISTRO DE BOLSAS SUELTAS ENROLLADAS. SUMINISTRO DE BOLSAS SUELTAS ENROLLADAS, GENERALMENTE BOLSAS DE SERVICIO PLEGADAS, REALIZADAS EN MATERIAL PLASTICO, CONSTITUIDO POR BOLSAS UNITARIAS SEPARADAS TOTALMENTE UNAS DE OTRAS, LAS QUE ESTAN ENROLLADAS HELICOIDALMENTE, CON LOS BORDES DE CADA UNA DE ELLAS SOLAPADAS EN RELACION CON LOS BORDES DE LAS BOLSAS CONTIGUAS. SE FACILITA LA EXTRACCION DE LAS BOLSAS UNITARIAMENTE, SIN NECESIDAD DE EXTRAER EL ROLLO DE LA FUNDA EXTERIOR.
Patent ES-2120322-B1 (ES)
Title: Procedimiento y maquina para obtencion de rosquillas de masa panificable con forma de ocho.
IPC: A21C3/10
Filed: 1995-02-27
Granted: 1999-03-01
Abstract: PROCEDIMIENTO Y MAQUINA PARA OBTENCION DE ROSQUILLAS DE MASA PANIFICABLE CON FORMA DE OCHO. CONSISTE EN UN PROCEDIMIENTO REALIZADO CON UNA MAQUINA PARA OBTENCION DE ROSQUILLAS QUE INCORPORA UNOS DEFLECTORES QUE ORIENTAN LA ROSQUILLA RECIEN CONFORMADA CON UN CIERTO ANGULO RESPECTO AL EJE LONGITUDINAL DE LA MAQUINA, CAYENDO SOBRE UNA CINTA TRANSPORTADORA QUE LA DESPLAZA HASTA SU EXTREMO DESDE EL QUE CAE SOBRE UNA BANDEJA QUE EN ESE INSTANTE SE ENCUENTRA PARADA, DE TAL MANERA QUE GIRE SOBRE SI MISMA EN SU CAIDA OBTENIENDOSE LA FORMA DE UN OCHO. LA MAQUINA INCORPORA LOS MEDIOS DE SINCRONIZACION CORRESPONDIENTES PARA REGULAR EL MOVIMIENTO DE LAS BANDEJAS.
Patent ES-2130947-B1 (ES)
Title: Dispositivo antirretorno para instalaciones lavaparabrisas de vehiculos automoviles.
Inventor: MOTA LOPEZ MIGUEL
IPC: F16K15/14
Filed: 1996-07-09
Granted: 2000-03-01
Abstract: Dispositivo antirretorno para instalaciones lavaparabrisas de vehículos automóviles. Este dispositivo antirretorno comprende un cuerpo tubular de entrada (1), un cuerpo tubular de salida (2) y una válvula elástica antirretorno (3) coaxialmente dispuestos y mutuamente enlazados, comprendiendo ambos cuerpos (1, 2) respectivos medios de acoplamiento a una conducción de líquido limpiador. En reposo, la válvula (3) está por reacción elástica cerrada; la impulsión de líquido limpiador en el sentido del cuerpo de entrada (1) al de salida (2) produce la deformación elástica de la válvula (3) y su apertura; y al cesar la impulsión de líquido limpiador, la reacción elástica de la válvula (3) así como por la presión de líquido limpiador contenido en la o las conducciones aguas arriba de la válvula (3) produce su cierre impidiendo el vaciado de las mismas por gravedad.