baber/WOPTO huggingface dataset:
Patent WO-9316743-A1 (WO)
Title: Injector display
Inventor: MICHEL PETER
IPC: A61M5/315
Filed: 1993-02-12
Abstract: Described is a display for a medical injector (1) in which the injection dose can be pre-selected by turning a control knob (2) and subsenquently injected by moving the knob (2) longitudinally. Resting against the control knob (2) in the injector are switching means (7, 8) which actuate switches (10, 11, 12) whose positions are transmitted to a circuit board (13). By virtue of the organization of the circuit board (13), which conveniently includes a processor, values such as the injection dose selected, the total dose already injected, etc., plus operating-status signals are output to a display unit (15).
Patent WO-9963383-A1 (WO)
Title: Verfahren zur inspektion von kammern, inspektionseinrichtung und industrielle prozesskammer
Inventor: MICHAELSEN CHRISTIAN S
IPC: F27D21/02
Filed: 1999-05-21
Abstract: Um im Betrieb Prozesskammern (3) zu inspizieren, wird eine Videokamera (9) mittels einer Lanze (7) durch eine relativ kleine Inspektionsöffnung (1) in die Kammer eingelassen. Ferngesteuert über Antriebsaggregate (13, 15) wird die Kamera (9) bezüglich der Lanze (7) in erwünschte Position geschwenkt.
Patent WO-0129076-A1 (WO)
Title: Nouveau polypeptide, une proteine-22 humaine p24, et polynucleotide codant pour ce polypeptide
Inventor: MAO YUMIN
IPC: C07K14/47
Filed: 2000-10-16
Abstract: L'invention concerne un nouveau polypeptide, une protéine-22 humaine P24, et un polynucléotide codant pour ce polypeptide ainsi qu'un procédé d'obtention de ce polypeptide par des techniques recombinantes d'ADN. L'invention concerne en outre les applications de ce polypeptide dans le traitement de maladies, notamment des tumeurs malignes, de l'hémopathie, de l'infection par VIH, de maladies immunitaires et de diverses inflammations. L'invention concerne aussi l'agoniste agissant contre le polypeptide et son action thérapeutique ainsi que les applications de ce polynucléotide codant pour la nouvelle protéine-22 humaine P24.
Patent WO-0023645-A1 (WO)
Inventor: YUAN SUOLIANG
IPC: C11D17/00
Filed: 1999-10-15
Abstract: The present invention relates to a method of washing cloth with oxygen-atom instead of detergent and a washing machine thereof. The method comprises washing cloth with oxygen-atom and active ions as well as bubbles instead of detergent and drying the cloth with negative pressure. The machine comprises a washing chamber, an oxygen-atom generator, an air bubble generator supplying bubbles into a washing basket.
Patent WO-0103333-A1 (WO)
Inventor: RAAF BERNHARD
IPC: H04W56/00
Filed: 2000-05-16
Abstract: The invention relates to a method for determining the base stations (BS) of a radiotelephone system which are able to communicate with a mobile station (MS) in a mobile radiotelephone system, which is required, for instance, for initiation of a handover process. In order to determine said base stations, the normal bursts (NB), especially the training sequences contained therein, which are are generally sent from neighbouring base stations (BS) for the transmission of communication data, are evaluated by the mobile station (MS).
Patent WO-0073779-A1 (WO)
Title: Gasmessfühler
Inventor: WEYL HELMUT
IPC: G01N27/407
Filed: 2000-05-23
Abstract: Die Erfindung betrifft einen Gasmessfühler, insbesondere zur Bestimmung einer Konzentration einer Gaskomponente in Abgasen von Verbrennungskraftmaschinen mit einem im wesentlichen rohrförmigen Gehäuse, in dem wenigstens ein axial verlaufendes Sensorelement durch wenigstens eine Dichtungsanordnung fixiert ist, wobei die wenigstens eine Dichtungsanordnung einen dem Abgas zugewandten Messraum innerhalb des Gehäuses begrenzt, das Gehäuse im Bereich des Messraumes zur Ausbildung eines Zwischenraumes aus einem Innenrohr und einem Aussenrohr besteht, die jeweils zumindest eine Eintrittsöffnung für das Abgas in dem Messraum aufweisen und wenigstens eine Austrittsöffnung für das Abgas besitzen. Es ist vorgesehen, dass der zumindest einen Eintrittsöffnung (26) des Innenrohrs (22) und/oder der zumindest einen Eintrittsöffnung (24) des Aussenrohrs (20) ein Strömungselement (30, 32) für das Abgas zugeordnet ist, dass das in dem vom Innenrohr (22) und Aussenrohr (20) gebildeten Zwischenraum (23) und/oder dem Messraum (18) eintretende Abgas in Richtung der jeweiligen inneren Mantelflächen (38, 40) des Innenrohrs (22) und/oder des Aussenrohrs (20) umlenkt.
Patent WO-0072955-A1 (WO)
Inventor: HILDEBRAND GESINE
IPC: B01J13/02
Filed: 2000-05-24
Abstract: Nouveau procédé continu de production de microparticules ou de nanoparticules morphologiquement homogènes à l'aide d'un micromélangeur, utilisation dudit procédé pour l'encapsulation de substances actives et particules produites à l'aide dudit procédé.
Patent WO-0127265-A1 (WO)
Inventor: BULLERDIEK JOERN
IPC: A61K48/00
Filed: 2000-10-11
Abstract: The invention relates to a nucleic acid which codes for a polypeptide. Said polypeptide comprises a KRAB domain and/or at least one zinc finger motif, whereby the KRAB domain contains the amino acid sequence of SEQ ID NO: 1 and the zinc finger motif is of the type contained in the zinc finger domain with the amino acid sequence of SEQ ID NO: 2.
Patent WO-0159535-A1 (WO)
Inventor: FANDRICH JOERG
IPC: G05B13/02
Filed: 2001-02-02
Abstract: The invention concerns a method for operating a technical facility (2) comprising an expert system (1) for diagnosing (9) the operating state of the technical facility (2). Once the expert system (1) has identified a malfunction of the technical facility (2), the expert knowledge available in the knowledge base (WB) of the expert system (1) is also used parallel to the establishment of a diagnosis (9) to calculate a regulatory intervention (u) in the technical facility (2) with the purpose of automatically eliminating a malfunction.
Patent WO-0224498-A1 (WO)
Title: Scheibenwischer
Inventor: ZIMMER JOACHIM
IPC: B60S1/40
Filed: 2001-09-15
Abstract: Die Erfindung geht aus von einem Scheibenwischer mit einem Wischarm, der aus einem Befestigungsteil und aus einem Gelenkteil mit einer integrierten Wischstange (26) aufgebaut ist, die ein u-förmiges Querschnittprofil besitzt und an der ein Wischblatt (12) über eine Haltefeder (22) angelenkt ist, wobei die Seitenwände (76, 78) der Haltefeder (22) durch eine offene Nabe (66) für einen Gelenkstift (20) verbunden sind und mit ihren überstehenden Innenseiten die Wischstange (10) außen führen. Es wird vorgeschlagen, dass das u-förmige Querschnittprofil bis zum freien Ende der Wischstange (10) reicht und dass im Endbereich in gegenüberliegenden Seitenwangen (32, 34) des Querschnittprofils mindestens ein Stegpaar (38, 40) ausgeformt ist, von denen mindestens eines eine nach innen abgewinkelte Lasche (44, 46) besitzt, wobei im montierten Zustand die Haltefeder (22) mit mindestens einem längs gerichteten Zapfen (70, 74) zwischen die Stege eines Stegpaars (38, 40) eingreift und mit der Wischstange (10) verrastet.
Patent WO-0229794-A1 (WO)
Title: Verfahren zur regelung der nachführung einer abtastvorrichtung und laufwerk dafür
Inventor: HERMANNS INGO
IPC: G11B7/09
Filed: 2001-10-01
Abstract: Es wird ein Verfahren zur Regelung der Nachführung einer Abtastvorrichtung (1) und ein Laufwerk (5) dafür vorgeschlagen, das eine verbesserte Regelung bei Detektion von Beschädigungen an einer abzutastenden Oberfläche eines eingeführten Speichermediums (10) ermöglicht. Dabei wird eine gemessene Position der Abtastvorrichtung (1) bezüglich eines in das Laufwerk (5) eingeführten Speichermediums (10) mit einer vorgegebenen Position verglichen. In Abhängigkeit des Vergleichsergebnisses wird mindestens ein Aktuator (15) so angesteuert, dass die Abtastvorrichtung (1) in Richtung der vorgegebenen Position bewegt wird. Beschädigungen an einer abzutastenden Oberfläche des eingeführten Speichermediums (10) werden durch mindestens einen Stördetektor (20) detektiert. Bei Detektion einer solchen Beschädigung wird eine Stellgrösse des mindestens einen Aktuators (15) zur Einstellung der Position der Abtastvorrichtung (1) für eine erste vorgegebene Zeit auf einem vorgegebenen Wert gehalten.
Patent WO-03106764-A1 (WO)
Inventor: EMMERICH WOLFGANG
IPC: D07B7/16
Filed: 2003-05-20
Abstract: L'invention concerne un procédé permettant d'insérer la bobine d'alimentation (1) qui est enroulée d'un produit long, au point de dévidement d'une machine destinée au traitement du produit long. La bobine d'alimentation présente au moins une extrémité de douille (13) saillante qui est insérée dans une paire de semi-coques (8, 8', 9,9') correspondantes avec alignement sensiblement horizontal de l'axe longitudinal de bobine (5) et qui est montée rotative ; une bobine d'alignement ad hoc et un point de dévidement adapté à la réalisation de ce procédé et destiné au traitement du produit long.
Patent WO-2004017542-A1 (WO)
Inventor: MEISSNER ECKHARD
IPC: H04B10/2525
Filed: 2003-07-07
Abstract: Die Erfindung betrifft ein optisches Übertragungssystem (OTS) zur Übertragung von optischen Signalen (OS) bestehend aus N optischen Faserstreckenabschnitten (FDS) mit jeweils einer optischen Faser (SSMF) und einer Dispersionskompensationseinheit (DCU). Zur Übertragung von eine erste Datenübertragungsrate (DR1) aufweisenden ersten optischen Signalen (OS1) sind die Kompensationsbeträge der ersten bis N-ten Dispersionskompensationseinheiten (DCU1 bis DCUN) derart dimensioniert, daß der erste bis N-te Faserstreckenabschnitt (FDS1 bis FDSN) jeweils um annähernd denselben Unterkompensationsbetrag (Dinline) unterkompensiert ist. Zur zusätzlichen Übertragung von eine zweite Datenübertragungsrate (DR2) aufweisenden zweiten optischen Signalen (OS2) ist dem ersten Faserstreckenabschnitt (FDS1) eine Vorkompensationseinheit (PCU) zur Vorkompensation der zweiten optischen Signale (OS2) vorgeschaltet, die einen Vorkompensationsbetrag (DPC) im Bereich von 0 ps/nm bis -2000 ps/nm aufweist. Hierdurch wird eine zusätzliche Übertragung von höherbitratigen optischen Signalen, beispielsweise 40 Gbit/s-Signalen, über ein für niederbitratige optische Signale, beispielsweise 10 Gbit/s-Signalen, dispersionsoptimiertes optisches Übertragungssystem (OTS) möglich.
Patent WO-2005045746-A1 (WO)
Title: Berührungslose biometrische erkennung
Inventor: HAUKE RUDOLF
IPC: A61B5/117
Filed: 2003-10-08
Abstract: Die Erfindung betrifft ein Verfahren zur berührungslosen Erkennung biometrischer Merkmale von Körperteilen, insbesondere von Fingerlinien, mit optischer Bilderaufnahme aus unterschiedlichen Perspektiven durch mehrere Bildaufnahmeeinrichtungen mit Überwachung und/oder Kontrolle der Position und/oder Haltung des zu erkennenden Körperteils und/oder Korrektur der Bilder der Aufnahmeeinrichtungen bezüglich Position und/oder Haltung, wobei dazu die äußere Form des Körperteils genutzt wird.
Patent WO-2004056469-A1 (WO)
Inventor: KEMPE WOLFGANG
IPC: A23L29/262
Filed: 2003-12-18
Abstract: The invention relates to pellets and method for production thereof. The pellets contain at least one oily component which is itself an active component or contains such an active component. According to the invention, the provision of said active components with increased concentration and long-term stability for subsequent administration, dosage or further processing can be guaranteed with such pellets, whereby the at least one oily, oxidation-sensitive or also easily vaporised active component is homogeneously and discretely distributed in a matrix and encapsulated with no core by means of at least one water-soluble polysaccharide as film-forming agent. The individual pellets each have a particle size of at least 100    ñ    m, preferably at least 300    ñ    m.
Patent DE-1807910-A1 (DE)
Title: Maccaroni prodn
Inventor: RUDOLPH MISHKIN DR ABRAHAM
IPC: A23L7/109
Filed: 1968-11-08
Abstract: The dough paste is cooked (boiled) long enough to cook it completely and need only be re-wetted in hot water for preparation for the table. Time required depends on wall thickness of the product and added spices etc. Wall thickness should be between 0.46 and 0.63 mm, and more especially 0.50-0.56 mm, though thickness below 0.30 mm is not recommended. The dough paste product is cooked in steam and kept moist throughout the process, by hot spray or intermittent sprays. The shaped products, tubes, noodles etc. are dried continuously or in batches, to required moisture, at a temperature maximum 115 degrees C.
Patent DE-1924104-A1 (DE)
Title: Alpha-hydroxy-beta-r-propyl-phosphonic acid esters - intermediates for epoxy-propyl phosphonic acid
Inventor: GRANT CHRISTENSEN BURTON
IPC: C07F9/38
Filed: 1969-05-12
Abstract: A. Compounds of formula (I) R' = brosyloxy, mesyloxy, tosyloxy, halogen, aralkoxy, subst. aralkoxy, alkenyloxy, alkynyloxy, opt. subst. aryloxy, tolyloxy, NH2. R2 = alkyl, aralkyl, subst. benzyl, opt. subst. aryl, heteroaryl contng. 1-3 O, S or N atoms; alkenyl or alkynyl. B. Process for preparing a compound of formula (II) by reacting a cpd. of formula (III) CH3. .COX (IV) with a compound followed by reduction of the product I. X = Br, Cl.
Patent DE-1941509-A1 (DE)
Title: Extraction of titanium from ilmenite
Inventor: WILLIAM REEVES JAMES
IPC: C21B15/00
Filed: 1969-08-14
Abstract: Extraction of titanium from ilmenite Products containing Fe and Ti are partially reduced to a leachable Fe- and Ti-dioxide fraction. In a rotary furnace, at least 0.5 parts by wt. of fine reducing agent and 1 part of fine ore is reduced, if necessary by burning a carbonaceous fuel, and the reaction mass is leached. The charge is heated to max. 950-1175 degrees C and kept at this temp. long enough for 90-98% of the iron to be reduced. Pref. the cooled mass is leached with an ammoniacal ammonium carbonate solution in the presence of oxygen and a Ti-rich fraction is extracted.
Patent DE-2014613-A1 (DE)
Title: Sulphur extraction from minerals
IPC: C01B17/027
Filed: 1970-03-26
Abstract: Sulphur is continuously extracted and purified from crashed rock, using water at 114 degrees C in a rotating bed autoclave coupled with multistage internal washer. Product, waste and feed are withdrawn and introduced through pressure seals.
Patent DE-2017402-A1 (DE)
Title: Heating plates for a multi-storey vulcanis-ing press
IPC: B29C33/02
Filed: 1970-04-11
Abstract: The heating plates have straight or curved heating pipes passing through them where the heating pipes in the edges of the plates are capable of heating to a higher temp. than those in the centre. Each pipe is independently regulated.
Patent DE-2025258-A1 (DE)
Title: Reaction rate measuring system - for reaction kinetic - /biological processes
IPC: G05B13/02
Filed: 1970-05-23
Abstract: The system is made up of groups of sensors and functional circuits together with counters and display units. The individual functions can be varied by adjustable controls representing the sensitivities of the reactions to the various physical/chemical conditions which can be controlled. A system of successive approximations is used, signals from the sensors providing control stimuli for switching in and out of counters and display instruments, the pulses being used for process control/regulation.
Patent DE-2047806-A1 (DE)
Title: 3-aroyl-acrylic acids - pharmaceutical intermediates prepd from acetophenones and glyoxylic acid derivs
IPC: C07D295/155
Filed: 1970-09-29
Abstract: Cpds. of formula (I), some of which are novel, R1R2A-CO-CR3=CHCOOH (I) (where A is aryl or opt. alkyl-substd. heteroaryl; R1 and R2 are H, lower alkyl, opt. substd. aroyl, halogen, NO2, acetylamino, CN, opt. lower alkyl-substd. carbamoyl, carbalkoxy, OH, alkoxy, alkylthio or alkylsulphonyl; or one of R1 and R2 can be allyloxy, cycloalkyl, dialkylaminoalkyl, opt. hydrogented heteroaryl or aryl opt. substd. by lower alkyl, halogen, NO2, acetylamino, CN, opt. lower alkyl-substd. carbamoyl, carbalkoxy, OH, alkoxy, alkyltio or alkylsulphonyl; R3 is H or lower alkyl) are prepd. by reacting R1R2A-CO-CH2R3 with R6O(R5-O)CH-COOR4 (where R4 is H or lower alkyl; R5 and R6 are H, lower alkyl or together alkylene) in the presence of an acid condensation agent. Cpds. (I) are intermediates for anti-inflammatories and antitussives.
Patent DE-2051211-A1 (DE)
Title: Building elements contg metamorphic silicous material - with foamed cell structure
IPC: C04B38/02
Filed: 1970-10-19
Abstract: The building materials of metamorphic silicate rock and minerals synthetic or natural, iso- or allo-chemical metamorphoses which are plastic and workable at firing temps of 650-900 degrees C as in parent patent, are fired in the form of briquettes foamed with the aid of a foaming agent and hardened in a steam pressure vessel at 140-220 degrees C. The basic materials are pref. silica contg. slags, flyash or other technical and synthetic silicates. Closed cell structure which has practically no capillarity.
Patent DE-2108310-A1 (DE)
Title: Composite thermoplast sheet - extruded from one fishtail die from already combined flows of different materials
IPC: B29C48/08
Filed: 1971-02-22
Abstract: In making multilayer thermoplastics sheet or strip for subsequent thermo-moulding by bringing together two or more threads (flows) of different plastics before they enter the fishtail extrusion die, then extruding them together, as in the parent patent, the cross-sections of the flows are shaped as they are brought together, so as to suit the flow pattern in the fishtail die. This enables greater control of individual layer thickness to be achieved. Pref. for thick sheet parabolic flows are combined.
Patent DE-2134019-A1 (DE)
Title: Substd phosphazo (thio)phosphonyl cpds - with insecticidal activity
Inventor: WUNSCH GERD DR
IPC: C07F9/26
Filed: 1971-07-08
Abstract: Cpds. of formula (I):- (R)3P=N- P(R)2=N nP(X)(R2) (I), (where X is O or S; each R is halogen, 1-4C alkoxy; NR2R3 in which where R2 is H or 1-4C alkyl, and R3 is 1-6C alkyl or phenyl opt. substd. by halogen or NO2, or R4R5P(X1)S- (in which X1 is O or S, and R4 and R5 are 1-4C alkoxy; n = 0,1 or 2; >=1 R is R3R5P(X1)S or NR2R3, and the no. of same substituents R is =2n + 4) are insecticides. (I) are pref. prepd. by reacting (I; R = Cl) with a 1-4C alkanol, HNR2R3 and/or R4R5P(X1)SM (where M is NH4, tetraalkylammonium, Na, K or 1/2 equiv. of an alkaline earth metal).
Patent DE-2137861-A1 (DE)
Title: Pickling vegetables or fruit - using low hydrogen ion concn soln
Inventor: HENNING WOLFGANG
IPC: A23B7/10
Filed: 1971-07-29
Abstract: The materials are cut into pieces, mixed with 4-8% of their weight of an edible acid solution of pH 0.5-3 and packed. The lower the pH the shorter the pickling time. Part of the acid remains in the packed material.
Patent DE-2202663-A1 (DE)
Title: Photographic line and half-tone pictures - obtd by introducing oxidising bath after developing
Inventor: SUGIYAMA MITSUNORI
IPC: G03C5/44
Filed: 1972-01-20
Abstract: Photographic high contrast pictures, esp. point- or raster picture printing patterns with reduced seams or edges round spots or points, are produced by developing an exposed photographic high contrast element with a developer contg. (a) >=1 dihydroxybenzene, esp. in form of hydroquinone, and (b) a sulphite ion and opt. a sulphite ion buffer, e.g. an aldehyde- or ketone-bisulphite adduct, and then treating the photographic element with a soln. of an oxidising agent, esp. a bichromate, ferricyanide,persulphate, perchlorate or a complex salt of Fe-(III)-ions. Pref. soln. is used as oxidising bath before fixing and contains an oxidising agent, esp. a brichromate, ferricyanide, persulphate or perchlorate, and a halide, esp. an alkali- or NH4 halide; or as a fixing soln. contg. fixing agent, esp. an alkali- or NH4 thiosulphate, and an oxidising agents, esp. a complex salt of Fe-(III)-ions with an org. acid. esp. EDTA.
Patent DE-2206919-A1 (DE)
Title: Sterilisation plant safety device - detecting slow leak rate over long period with plant shut down
Inventor: ECHLE BERNHARD DIPL ING
IPC: A61L2/20
Filed: 1972-02-14
Abstract: A sterilisation appts. comprises a connecting pipe between the sterilisation chamber and the sterilisation medium reservoir, this pipe contg. a regulator valve, which can be shut off. Between this regulator valve and the reservoir, pref. close to the reservoir, a main shut-off valve is incorporated. A contact manometer is connected to the line between the two valves and reponds to a pressure above ambient, pref. a slight pressure of 3-50 Torr. The contact manometer is pref. connected to an acoustic or visual alarm device and with the entire unit shut down, e.g. over a weekend, any leakage from the reservoir into the length of pipe between the shut-off valve and regulator valve will be detected by the contact manometer.
Patent DE-2228122-A1 (DE)
Title: Long life twist drill - for machining composite printed circuit boards
Inventor: ROHRER ANDREAS
IPC: B23B51/02
Filed: 1972-06-09
Abstract: The printed circuit boards are esp. made from epoxy resin sheets reinforced with spun glass fabrics and/or Cu-coated, the drill having a cross-cutter with two cutting phases which have a width that is smaller then their width at the drill periphery. Pref. the width of the cutting phases at the drill periphery corresponds to the spread of the guide phases in the peripheral direction of the drill.
Patent DE-2231884-A1 (DE)
Title: Permanent wave hair shampoo - for use in aerosols
Inventor: COX HANS
IPC: C11D3/38
Filed: 1972-06-29
Abstract: Title shampoo compsn. contains 35% Tengo-Betain; 2% sodium lauryl ether sulphate (28% concn.) 1% COCO fatty acid diethanolamide; 2% Sofligen 767; 0.5% undecylenoic acid polydiethanolamide; 0.3% perfume oil Crescendo A 115,322; 5.20% oyster extract, 44% plant extract and 29% distilled water.
Patent DE-2241570-A1 (DE)
Title: Poly-as-triazines - prepd from a dihydrazidine and a bis-(1,2-dicarbonyl) cpd in non-stoichiometric amts
Inventor: HERGENROTHER PAUL M
IPC: C08G73/06
Filed: 1972-08-24
Abstract: High mol. wt. poly-as-triazines can be prepd. as concd. solns., in which gelling and/or thickening can be avoided, by reacting a dihydrazidine and a bis-(1,2-dicarbonyl) cpd. in a solvent for the poly-as-triazine, the amts. of dihydrazidine and bis-(1,2-dicarbonyl) cpd. reacted being in the proportion 0.975-0.995 mole of one reactant per 1.00 mole of.
Patent DE-2243554-A1 (DE)
Title: Antibiotic violamycin - with antitumour, virucidal and antimycoplasma activity
Inventor: FLECK WERNER
IPC: C07C69/74
Filed: 1972-09-05
Abstract: Antibiotic violamycin (I) is prefd. together with its aglycone by culturing Streptomyces violaceus IMET JA 6844 or its mutants or variants in a nutrient medium contg. C and N sources and mineral salts at 25-37 degrees C for 2-6 days with aeration and stirring, extracting the antibiotic from the culture filtrate and the mycelium, purifying it, and sepg. it into its components.
Patent DE-2304450-A1 (DE)
Title: Thermal cracking of sulphur-rich crude oil (fractions) - after initial catalytic hydro-desulphurising with hydrogen-rich gas from the low temp. sepn. of the gaseous cracked prod.
Inventor: DORNER ARMIN DIPL ING
IPC: C10G59/06
Filed: 1973-01-30
Abstract: The high S raw material is first catalytically desulphurised using the H-rich residual gas fraction from the low temp. sepn. of the gaseous prod. from thermal cracking, after washing out the H2S and CO2 and sepg. the oil and petrol fractions. The H2S-rich gas from hydro-desulphurising is pref. given a coarse wash with regeneratable alkaline wash fluid to remove most of the H2S and then mixed with the cracked gas for further washing. Oils with S contents >0.5 wt.% can be processed while maintaining acceptable S levels in the heating oil prods. and the petrol fraction, and without causing corrosion of the processing plant for the cracked gas due to excessive H2S content.
Patent DE-2316751-A1 (DE)
Title: Plastic filter tube for water well or borehole - has filter ribs on the outside
Inventor: HOPF KLAUS DIETER
IPC: E03B3/18
Filed: 1973-04-04
Abstract: In a plastic filter tube, has filter ribs on the outside with transverse slits leading to the interior of the filter, the side walls of the channels formed between the ribs run towards the bottom of the channels parallel to or diverging from each other. More especially, the width of the slits is greater than the minimum distance between the ribs.