baber/WOPTO huggingface dataset:
Patent CN-201355065-Y (CN)
Inventor: LIANG LI
IPC: F24B7/04
Filed: 2009-02-26
Granted: 2009-12-02
Abstract: 本实用新型涉及一种节能装置，具体为一种炉具余热利用装置，解决现有炉具余热利用装置由于结构不合理，存在供暖效果差、室内升温慢等问题，包括余热采集金属管以及其内间隔排列有散热水管的密闭散热水箱，各散热水管相互贯通，密闭散热水箱一侧上方连接有与散热水管一端连通的热水管，另一侧下方连接有与散热水管另一端连通的循环冷水管，余热采集金属管两端分别与热水管和循环冷水管连接，密闭散热水箱一侧开有与鼓风机连接的进风口，另一侧开有热风出口。结构简单、设计合理，改造成本较低，更重要的是用于室内取暖时，散热快，升温速度较快，保证了室内的取暖效果，可用于家庭或一些公共场所的室内供暖，具有一定的推广价值。
Patent CN-201390776-Y (CN)
Inventor: FUSHUN XU
IPC: C22B9/05
Filed: 2009-04-16
Granted: 2010-01-27
Abstract: 本实用新型是一种铝液在线除气装置中的石墨转子。其特征在于在石墨转子表面有5～10毫米厚的抗氧化耐高温耐磨擦惰性耐火材料保护层。本实用新型的铝液在线除气装置中的石墨转子的保护层不开裂、不分层，抗氧化，耐磨擦，耐高温，不会与高温铝液和气体发生化学作用。使用寿命可以提高五倍以上。
Patent CN-201368419-Y (CN)
Title: Led灯管之间固定卡座装置
Inventor: YONG ZHANG
IPC: F21Y115/10
Filed: 2009-02-28
Granted: 2009-12-23
Abstract: 本实用新型技术方案涉及一种LED灯管之间固定卡座装置，所述LED灯管之间固定卡座装置包括卡扣和连接部，所述卡扣与所述连接部相连。所述卡扣包括用于与所述连接部相连的连接孔，用于卡住LED灯管的圆弧形卡环，所述连接孔与所述圆弧形卡环连为一体。所述LED灯管之间固定卡座装置使LED灯管之间的并排的连接与拆卸问题得到了解决，方便的连接功能可以节省工时，提高了生产效率。用于卡住灯管的圆弧形卡环与LED灯管的形状相匹配，使安装更牢固。
Patent CN-201434536-Y (CN)
Inventor: SHEMING REN
IPC: F24J2/46
Filed: 2009-07-01
Granted: 2010-03-31
Abstract: 本实用新型涉及直插式太阳能热水器储水箱，解决了现有储水箱的排气管和溢流管位置不合理而产生的热对流损失。本实用新型包括由水箱外壳、保温层和水箱内胆组成的储水箱，储水箱上设有排气管、溢流管和上下水口，所述储水箱底部分别设有排气口和溢流口，所述排气口内通过密封件设有排气管，该排气管伸入储水箱内；所述溢流口内通过密封件设有溢流管，该溢流管伸入储水箱内。溢流口位于水箱下部，减少和外界的直接接触面，所以会有效减少热量的散失，从而起到“锁温”作用。改进排气口的位置后，不但可以有效“锁温”的同时，还可以防止水箱内水质受到二次污染。
Patent CN-201396114-Y (CN)
Inventor: TING HU
IPC: E21B34/14
Filed: 2009-05-13
Granted: 2010-02-03
Abstract: 本实用新型涉及欠平衡钻井内防喷防漏装置，是一种欠平衡钻井专用旋塞阀，其包括阀体、阀球、上阀座和下阀座；阀体的下端有公扣，阀体的上端有母扣，在阀球上有能与阀体内腔相通的通道，在阀体的内壁上有第一凹槽，下阀座的底部座在第一凹槽的下底面上。本实用新型结构合理而紧凑，使用方便，当欠平衡钻井专用旋塞阀安装在方钻杆上方时，欠平衡钻井专用旋塞阀主要起到防喷作用，能防止欠平衡钻井时高压油气流的上窜，降低了安全隐患；当欠平衡钻井专用旋塞阀安装在方钻杆下方时，主要是用来防止钻井液的流失，有效地降低了钻井成本；在实施气体欠平衡时，欠平衡钻井专用旋塞阀安装在钻具之间，能协助卸掉钻具内的压力。
Patent GE-U1998407-Y (GE)
Title: Method for Removal of Silver out of Electrolitic Refining Wastes
Inventor: JAPARIDZE JONDO
IPC: C22B11/10
Filed: 1996-05-08
Abstract: 1. Technical Result Increase in yield of metal silver, simplification of techology and reduce of manufacturing cost of the final product. 2. Essence The method comprises chemical treatment of electrolitic refining wastes by 24% sodium formiate in the proportion of 1:1. 3. Field of Application Chemistry. 1 Tabl.
Patent GE-U2000730-Y (GE)
Title: Method for Obtaining of Concrete Additive
Inventor: SKHVITARIDZE RAZHDEN
IPC: C04B7/36
Filed: 1997-02-13
Abstract: 1. Technical Result Increase in activity and reduction in power consumption. 2. Essence A mineral substance is mixed with coal mining wastes in the amount of 5-95mass% of the mineral substance and thermal treatment is conducted at the temperature 600-1000°C. 3. Field of Application Industry of building materials.
Patent PE-20070894-Z (PE)
Title: Contenedor descartable de alimentos con desfogue de vapores
Inventor: BORDA NORIEGA JOSE ALEJANDRO
IPC: B65D81/26
Filed: 2006-08-15
Abstract: SE REFIERE A UN CONTENEDOR TERMICO DE ALIMENTOS FABRICADO EN BASE A POLIESTIRENO EXPANDIDO, SOBRE EL QUE SE HA REALIZADO DOS ABERTURAS LATERALES, EN LOS EXTREMOS DE LA BISAGRA ENCARGADA DE UNIR LA BASE Y LA TAPA DE DICHO CONTENEDOR. DICHAS ABERTURAS PERMITEN EL DESFOGUE DE LOS VAPORES GENERADOS POR LOS ALIMENTOS CALIENTES COLOCADOS DENTRO DEL CONTENEDOR, EVITANDOSE ASI LA CONCENTRACION DE DICHOS VAPORES DENTRO DEL CONTENEDOR Y PERMITIENDO QUE LOS ALIMENTOS SEAN TRANSPORTADOS MANTENIENDO SU TEMPERATURA Y EVITANDO SU HUMEDECIMIENTO
Patent PE-20211849-Z (PE)
Title: Bicicleta acuatica con aprovechamiento de ecoenergias
Inventor: HILARIO SANCHEZ JORGE ALFREDO
IPC: B63B34/50
Filed: 2021-08-16
Abstract: Una bicicleta acuatica con aprovechamiento de ecoenergias del tipo que comprende un chasis de bicicleta caracterizado porque: hay dos conjuntos de flotadores cilindricos en ambos lados del chasis; donde cada conjunto esta formado por un flotador central, dicho flotador central esta unido por articulaciones a un flotador delantero y a un flotador trasero; unos elementos de extraccion de energia de la rotacion entre los flotadores producto de las olas; una bateria de almacenamiento; reflectores y sensores de proximidad ultrasonicos; ademas, en vias de asegurar la disponibilidad de energia electrica limpia se proporciona de un dinamo de buje integrado al plato pedalier y celdas solares en el extremo de una barra circular que dan sombra al usuario.
Patent ES-491198-A0 (ES)
IPC: B61F5/38
Filed: 1980-05-06
Abstract: 1. A four-axle bogie for rail vehicles, with an H-shaped main frame (1) which for supporting the car body is provided centrally with a socket bearing (1c) and is itself supported by way of its four ends centrally on side cheeks (2), each of which embraces two axles (3a) forming a pair, bearings (6, 4) being provided which allow movement compensation, characterised in that the beams (1b) of the main frame (1) which extend parallel to each other lie transversely to the running direction, that the ends of these transverse beams (1b) being supported on rigid side cheeks (2) by way of respective spring elements (6), each of which, in addition to a sprung movement in an upright direction, allows a limited rotating of each side cheek (2) about an axis of rotation lying on the middle of the length of the side cheek (2), and a limited movement in the longitudinal and transverse direction and also at an angle thereto, the side cheeks (2) being connected to the respective axle bearings (4) of the two axles (3a) by means of an over-bearing (5) which comprises spherical bearing surfaces and which allows movement adjustment on all sides.
Patent ES-492310-A0 (ES)
IPC: C07D207/456
Filed: 1980-06-10
Abstract: Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate renal lithiasis.
Patent ES-511510-A0 (ES)
IPC: C12R1/125
Filed: 1982-04-19
Abstract: The invention discloses an improved method and cloning vectors useful for the production of cloned heterologous gene products in B. subtilis. Use of the method and vectors allows the host to produce the heterologous gene product as a single unfused peptide having no extraneous amino acids attached that will accumulate within transformed host organisms. The method comprises providing growth conditions in a growth media for B. subtilis bacteria containing plasmids capable of replication in B. subtilis or capable of integrating into the bacterial chromosome of B. subtilis, said plasmids having a heterologous gene therein coding for the predetermined protein and capable of expession in B. subtilis, said heterologous gene including a translational initiation codon sequence and being under the control of operable transcriptional and translational regulatory signals including operator, promoter and ribosomal binding site sequences, said operable transcriptional and translational regulatory signals being indigenous to a source other than said heterologous gene, and there being no translational initiation codon sequences prior to said heterologous gene, and optionally recovering the resulting predetermined protein.
Patent ES-513629-A0 (ES)
IPC: A61K6/884
Filed: 1982-07-01
Abstract: A porous implantable oral prosthesis which can be used to replicate and replace any hard tissue portion of the mouth such as bone and teeth is described. The prosthesis comprises sintered polymeric particles coated with a hydrophilic material. The polymeric particles vary in size to as to provide an area of relatively coarse porosity (2,12,22,32,42) where the porsthesis is intended to interface with bone tissue (6,16,26,38,48) and relatively fine porosity where it is intended to interface with soft tissue (7,17,27,39,47). A process for producing such prosthesis by filling a mold with appropriate molding compounds comprised of polymeric particles and a hydrophilic monomer, sintering the particles and polymerizing the monomer by dielectric heating, removing the sintered material from the cooled mold, and placing the prosthesis in a hot liquid to remove residues is described. An entire tooth, including a nonporous crown (4,14) may be produced. A process for producing a porous replica of a tooth root (1) suitable for implantation immediately after extraction of a tooth is disclosed. When extraction has taken place in the past and has resulted in the bone and gum receding, a porous implant (11,21) inserted in a newly drilled hole in the patient's jaw bone may be used. A central post (5,15) associated with the implant projecting above the gum may be used for attachsing a denture, partial bridge or a crown. A porous implant (31,41) may be used for jaw bone replacement in order to improve the fitting of dentures.
Patent ES-517592-A0 (ES)
IPC: B60Q11/00
Filed: 1982-11-23
Abstract: A circuit diagnosis and control device adapted to detect defects in a primary electrical circuit and temporarily discontinue power to the primary circuit in the event of a defect. A MOS transistor is connected in series with the power source and the primary circuit. A calculation device is connected with the MOS transistor and periodically tests a first voltage VGS, which may be different from zero, and a second voltage VDS, which must be higher than half of the voltage VBAT of the battery. In the event of a short circuit, the power is temporarily withheld from the primary circuit. An indication lamp may be controlled by the calculation device to inform the driver of the circuit condition. If VGS is not equal to zero and VDS is half of VBAT, a short circuit condition is indicated, for example, by a slow flashing of the indicator lamp. If VGS is equal to zero and VDS is less than half of VBAT, an open circuit condition is indicated, for example, by a rapid flashing of the indicator lamp. During normal operation, the indicator lamp remains continuously lit.
Patent ES-551834-A0 (ES)
IPC: A61K31/00
Filed: 1986-02-11
Abstract: Disclosed are substituted bis(4-aminophenyl)-sulfones of general formula    <IMAGE>  (I)  wherein R1 is hydrogen, alkyl or cycloalkyl; group, R2 is hydrogen or C1-C3 alkyl, R3 is nitrile, C1-C3 alkylaminocarbonyl, di C1-C3 alkylaminocarbonyl, C3-C7 N-cycloalkyl-C1-C3 alkylaminocarbonyl C1-C3 alkylamino, C1-C3, di alkylaminocarbonyl alkoxy, alkylaminosulfonyl, di C1-C3 alkylaminono, diC1-C3 alkylaminosulfonyl, hydroxy C1-C3 alkyl, C1-C3 alkylcarbonyl, amino C1-C3 alkyl or C1-C3 alkoxy C1-C3 alkyl group or, when R1 and R2 are each hydrogen, R3 can be hydroxy, hydroxycarbonyl C1-C3 alkoxy or di C1-C3 aminocarbonylalkoxy; or, when R1 is C1-C3 alkyl or C1-C3 cycloalkyl and R2 is hydrogen or C1-C3 alkyl, R3 can also be halogen, trifluoromethyl, nitro, amino, aminosulfonyl, aminocarbonyl, C1-C3 alkyl, carboxy or C1-C3 alkoxycarbonyl; and R4 is hydrogen or, when R1 and R2 are each hydrogen and R3 is halogen or hydroxy, R4 can also be halogen, hydroxy or C1-C3 alkoxy; or a nontoxic, pharmaceutically acceptable salt thereof. Also disclosed are pharmaceutical compositions comprising such compounds alone and in combination with dihydrofolic acid-reductase inhibitors. The compounds and compositions are useful for their inhibiting effect on bacteria, mycobacteria and plasmodia.
Patent ES-557458-A0 (ES)
IPC: H04N5/265
Filed: 1987-03-18
Abstract: A pix-in-pix television display includes circuitry for reducing the amount of memory needed to hold one field of the reduced size image. In the display apparatus, digital samples representing the large and small picture signals are developed at substantially equal rates by separate circuitry. Subsampling circuitry stores one out of every five of the samples representing a horizontal line of the small picture. These samples are displayed, synchronous with the large picture at a rate three-fifths times the display rate of the large picture samples to produce an apparent size reduction of one-third in the horizontal direction.
Patent FI-823427-A0 (FI)
Inventor: EKBLADH FRED VAOGE GUNNAR
IPC: A61M27/00
Filed: 1982-10-08
Abstract: A surgical trocar comprising a flattened oblong unit having at the front end an angled sharpened cutting edge, and at the rear end a device for removably attaching a tube for drainage or other purposes. The trocar's cutting edge produces fissure-shaped skin incisions which heal more easily than circular wounds, and the trocar's flattened shape reduces the risk of slippage and attendant damages to the patient and/or surgeon's hand from such slippage.
Patent FI-844671-A0 (FI)
Inventor: VAN HUYSSTEEN JAN HENDRIK HOFM
IPC: B24C5/06
Filed: 1984-11-28
Abstract: A shot blasting wheel has a base plate (8) with angularly-spaced elongate grooves (12) therein, into which complementary tongue formations (11) on shot accelerating blades (9) engage. A rearwardly-directed lug (14) is provided on each blade (9), each lug being engaged by a bolt (13). Each lug (14) includes a wedging surface (14a) which results in a locking force on the lug having components normal to the base plate (8) and parallel thereto to lock the tongue formation (11) in the associated groove (12). The interengaged tongue-and-groove formations (11, 12) prevent the ingress of shot by lands (9c), provided on the bottom surface of the blades (9) which lands are in close contact with the base plate (8).
Patent FI-853420-A0 (FI)
Inventor: HATFIELD W ROBERT
IPC: C22B11/02
Filed: 1985-09-06
Abstract: Platinum lost from a catalyst gauze in a nitric acid plant is recovered using a recovery gauze placed immediately downstream of the catalyst gauze. The recovery gauze consists of palladium or an alloy comprising a major proportion of palladium, and the mesh size and wire diameter of the recovery gauze are chosen such that the predicted recovery gauze cycle length is from 0.9 to 1.1 times the catalyst gauze cycle length.
Patent FI-873987-A0 (FI)
Inventor: REINHARDT BERND
IPC: D21H19/60
Filed: 1987-09-14
Abstract: 1. Method of producing yellowing-resistant paper webs from cellulose with the addition of sizing agents, fillers, retention agents and wet strengthening agents, characterised in that the paper web consists of sulphate cellulose derived from poplar or eucalyptus and pine-wood in a ratio of 15:85 to 85:15, with a grinding degree of 15 to 60 degrees SR ; and in that the paper web is provided with a surface layer consisting of a substantially hygroscopic additive which represents 5 to 100% of the quantity of binder.
Patent FI-875020-A0 (FI)
Inventor: DAVIES ROY VICTOR
IPC: C07D495/04
Filed: 1987-11-13
Abstract: Novel 7(4H)-thieno[3,2-b]pyridinones of the formula I, <CHEM> wherein R is lower alkyl, and R1 is hydrogen, lower alkyl, lower alkoxy, halo, trifluoromethyl, or phenyl optionally substituted with one or two substituents selected from halo, lower alkyl, lower alkoxy and trifluoromethyl. The compounds are useful in the treatment of cardiovascular diseases. Pharmaceutical compositions containing the novel compounds and processes for preparing the novel compounds are also described.
Patent FI-885549-A0 (FI)
Inventor: SCHUSTER RICHARD LEE
IPC: B65D/
Filed: 1988-11-29
Abstract: A carton contains a flap on the outer top panel and a flap on the inner top panel, the free edge of the outer top panel flap overlying the inner top panel flap. When a user presses down on the outer top panel flap, it pivots out of the way to allow the user's fingers to fold the inner top panel flap under the top panel structure to provide a handle for lifting the carton. When the fingers are withdrawn, the outer top panel flap is biased upwardly by its arcuate foldable connection to close the handle opening. If the inner top panel flap is contacted by the outer top panel flap as it pivots upwardly, the outer top panel flap pushes the inner top panel flap up to a substantially closed position. Score lines extending from the ends of the foldable connections of the inner and outer top panel flaps to the corners of the carton distribute the lifting stresses to the side panels of the carton.
Patent FI-893722-A0 (FI)
Inventor: GROENEN MARTINUS ANTONIUS MATH
IPC: C12N9/88
Filed: 1989-08-07
Abstract: Clustered antibiotic biosynthetic genes are employed for improvement of production of the antibiotic in microorganisms and for the isolation of other genes involved in the biosynthesis of the antibiotic. The invention is exemplified with improved production of penicillin in Penicillium crysogenum, with the isolation of another clustered biosynthetic gene(s) and with the expression of penicillin biosynthetic genes in Acremonium chrysogenum.
Patent FI-902846-A0 (FI)
Inventor: BIFTU TESFAYE
IPC: A61P7/02
Filed: 1990-06-07
Abstract: The present invention is directed to a specifically substituted tetrahydrofuran of the formula (I) <CHEM> wherein R<4> is an alkylthio, alkylsulfinyl or alkylsulfonyl containing group, Y is an alkyl or substituted alkyl group, R<6> is an alkyl or a substituted alkyl group and the substituents at positions 3, 4 or 5 are acyclic.
Patent FI-903499-A0 (FI)
Inventor: SACHETTO JEAN-PIERRE
IPC: C08L3/02
Filed: 1990-07-11
Abstract: A composition of matter capable of being formed into articles having substantial dimensional stability comprising     a) destructurized starch, and b) at least one polymer selected from the group of polysaccharides which have been chemically modified to contain added hydroxyalkyl groups and/or contain alkyl ether groups, and/or contain ester groups; said polymer being present in an amount effective to enhance the physical properties of said articles.   The composition may contain further conventional additives as well as hydrophobic substantially water-insoluble polymers.
Patent FI-920697-A0 (FI)
Inventor: RANKI TYTTI KATARIINA
IPC: F24F3/16
Filed: 1992-02-18
Abstract: A method of providing a circulating air flow in a treatment space for a working area, whereby inlet air (A) is blown into the treatment space (1) to form a circulating air flow (A') in the treatment space, which flow provides an air curtain (A'') at an access opening (5) to the treatment space. In order to eliminate the disturbing influence of a workpiece (4) within the working area (3) on the circulating flow and to improve the working conditions, at least a part (B) of the circulating air flow (A') is deflected from the working area in such a way that the working area remains essentially within the circulating air flow. An arrangement for carrying out the method comprises a duct (7) formed in the treatment space (1) and passing the working area (3) for at least a part (B) of the circulating air flow.
Patent FI-922271-A0 (FI)
Inventor: ROIZMAN BERNARD
IPC: C07K14/195
Filed: 1992-05-19
Abstract: The present invention relates to the identification and purification of a herpes protease and a nucleic acid segment coding for two proteins. The first protein is the herpes protease which is able to cleave itself and also cleave the second protein. This protease is required for the assembly of the herpes virus capsid, therefore is essential for replication. The second protein has previously been designated as the family of proteins in viral infected cells, ICP35. The protease and its substrates are encoded by overlapping nucleic acid segments. This invention also relates to a promoter sequence for the second protein. Methods are presented of producing a viral protease, screening a protease inhibitor which may be used in a drug designed for the treatment of herpes disease, methods for treating herpes and other viral infections wherein the virus employs a protease substantially similar to the herpes protease, for capsid production. Methods for detecting herpes infections and other viral infections are also disclosed.
Patent FI-924911-A0 (FI)
Inventor: RITTER EBERHARD
IPC: C07C5/29
Filed: 1992-10-29
Abstract: When camphene is prepared by rearrangement of  alpha -pinene, reaction time can be shortened if the rearrangement is carried out under reflux. The heat of reaction obtained is dissipated by evaporative cooling. The composition of the reaction mixture can be controlled by monitoring the temperature towards the end of the reaction.
Patent FI-930472-A0 (FI)
Inventor: YOUNG CHAPMAN III
IPC: E21C37/00
Filed: 1993-02-03
Abstract: Hard compact materials, such as rock, concrete, et cetera, are broken by igniting an appropriately designed explosive or propellant charge placed within the hole or carried in a special charge-containing device with a short barrel which is inserted and sealed into a pre-drilled hole of particular geometry. One or more approximately cylindrical holes are drilled into the material to be broken by conventional drilling, such as used in the mining and construction industries. The holes have a relatively short depth to diameter ratio, being in the range of about 2:1 to 6:1, and preferably about 3:1 to 5:1. The holes are percussively drilled with microfractures in and around hole bottoms to provide fracture initiation sites at the hole bottoms so as to provide preferred fracture initiation roughly parallel to a free surface of material being excavated. The explosive or propellant charges may be any of several commercially available explosives or propellants, including standard military and commercial rifle powders and various recently developed liquid propellants. The propellant charges, whether solid or liquid, may be placed and ignited within a charge-containing device, which includes a short barrel inserted into the holes drilled into the material to be broken. The barrel of this device may be further sealed into the holes by a helical shim sealing method.
Patent FI-933661-A0 (FI)
Inventor: SOERGEL GUENTER
IPC: B21B37/24
Filed: 1993-08-19
Abstract: PCT No. PCT/DE92/00104 Sec. 371 Date Aug. 20, 1993 Sec. 102(e) Date Aug. 20, 1993 PCT Filed Feb. 14, 1992 PCT Pub. No. WO92/14563 PCT Pub. Date Sep. 3, 1992.A feedback control of a hot and/or cold rolling process by means of a process control system, which executes a predetermined rolling program containing the initial and final dimensions, material data, roll temperatures, etc., and has a master system for controlling the setpoint values of subordinate, preferably decoupled, individual control units for the variable functional variables of the individual roll stands, e.g. rolling force, rotational speed, screw-down position [setting], etc. The setpoint values of the control units are determined in a computational operation using model equations, in which prepared and statistically processed measured values of the process variables are substituted, with convergent adaptation of absolute parameters to the actual parameters. In the event of changes in the requirements of the rolling process, in particular in the event of a transition from manual to automatic operation, or of changes in the final thickness, and/or changes in temperature, a relative adaptation of the parameters is carried out on the basis of the set values used before the changes in requirements as initial values.
Patent FI-941578-A0 (FI)
Inventor: KOCH KLAUS-UWE
IPC: C09D4/00
Filed: 1994-04-06
Abstract: 2.1. Porous bodies, for example cast components of aluminium, can be sealed by filling the pores with a curable liquid and curing the liquid. Since only the pores are filled, the article to be impregnated is immersed under vacuum into the curable liquid and the excess liquid is washed off with water. This necessitates good washing characteristics in the impregnating liquid. 2.2. A combination of (meth)acrylates which are of relatively good solubility in water with ethylenically unsaturated monomers having a C8-C20 radical and a surfactant provides excellent washing-off characteristics with good impregnating properties, good elasticity and low weight loss on heat treatment. The impregnating liquid may advantageously also contain free-radical initiators and may be heat-curable. 2.3. Impregnation of cast metal pieces, for example engine or transmission components.