baber/WOPTO huggingface dataset:
Patent BE-1011459-A5 (BE)
Title: Method and apparatus for realizing a permanent lowering of the ground water level in a body of earth
Inventor: SMET JOHAN
IPC: E02D19/10
Filed: 1997-09-18
Granted: 1999-09-07
Abstract: The invention concerns a method and apparatus for realizing a permanent lowering of the ground water level in a body of earth, using pipe-driving techniques employing lubricants such as bentonite among others. The distinguishing feature is that pipes are used of a diameter sufficient to let a controller through, making it possible to collect water using filter elements that have been placed in the wall of the tube in order to lower the ground water level.
Patent CH-636711-A5 (CH)
Title: Stereoscopic photography process
Inventor: GIAUQUE RENE
IPC: G03B35/08
Filed: 1979-11-27
Abstract: This process makes it possible to obtain a film which carries, for each scene, two images (A, B) which are juxtaposed one above the other, in which the corresponding points of these two images of a scene placed at infinity appear on the film with a lateral spacing between them, thus widening the field of stereoscopic vision. <IMAGE>
Patent CH-593049-A5 (CH)
Title: Surgical device for use in operations - with body and handle having flexible parts bonded to elastomer parts
IPC: A61L31/06
Filed: 1974-08-06
Abstract: Surgical device for use in operations on soft tissues, muscles, organs etc., has a body with a flexible part bonded to an elastomer part, these parts being smooth, non-toxic and compatible with cell tissue, and a handle with a flexible part bonded to an elastomer part, these parts also being smooth, non-toxic and compatible with cell tissue. the body can be arranged in the region of a surgical operation to assist in the removal and support of tissue with the handle gripped at a point outside the position of the operation so that the body is in a desired position during the operation, the body and handle together providing a function similar to that of the human hand, wrist and forearms. The device does not damage the serosal surface of organs or react with body fluids. It prevents drying-out of serosal surfaces.
Patent CH-630113-A5 (CH)
Inventor: WINTERBOTHAM PETER
IPC: C11D17/00
Filed: 1977-11-04
Abstract: An improved cleaning composition, comprising an amine oxide, an alkylether sulphate, casein and optionally other nonionic detergent compounds and an organophosphorus compound. The composition, which is free from alkylbenzene sulphonates, alkyl sulphonates and alkyl sulphates, has improved drain-dry properties and improved mildness properties.
Patent CH-609287-A5 (CH)
Title: Windscreen wiper for motor vehicles
Inventor: FAGGI FRANCO
IPC: B60S1/40
Filed: 1976-12-20
Abstract: The wiper blade is mounted, via rocker arms, on a yoke (12) which in its middle part has two facing side walls (20). Between these walls (20) there is mounted a support body (22) provided with projections (28) for snap-engagement into holes (30) in the walls (20). The support body (22) is provided with a hole (34) which is aligned with holes (36) in the side walls (20) of the yoke, said hole being provided on its internal surface with elastically yielding ribbing. The ribbing engages with the middle narrow-diameter part (42) of a pin (38) extending laterally from the wiper arm (40). It is thus possible to obtain a means for coupling the yoke to the arm which easy and cheap to manufacture. <IMAGE>
Patent CH-568992-A5 (CH)
Title: 1-polyfluoroalkyl-benzodiazepines and prepn
IPC: C07D243/16
Filed: 1971-02-09
Abstract: 1-Polyfluoroalkyl-benzodiazepines. New cpds. (I) and their N-oxides useful as anti-anxiety, anticonvulsive sedative, hypnotic, and muscle relaxing agents (wher e R is polyfluoroalkyl; X is Hal, CF3 or NO2; Y is H, Hal, CF3, NO2, OH, 1-6 C alkyl or -alkoxy) are prepd. by standard methods for forming benzodiazepines viz, ring closure, introduction of X = Hal from X = H or NH2, isomerisation of 4,5-dihydro cpd., conversion of a tetrahydrobenzodiazepine to a 2,3-dihydro cpd. and substn. of the 5-position. 4-X-N(R)-anilines are also converted to the intermediates N-(4-X-phenyl)-ethylene diamines by reaction with ethyleneimine then the diamines are acylated with a Y.C6H4COOH deriv.
Patent CH-559566-A5 (CH)
Title: Mechanical rotating random number indicator for lotto game - has edge numbered disc rotated by pawl and ratchet
IPC: A63F5/00
Filed: 1972-11-27
Abstract: Mechanical rotating random number indicator, i e for lotto game embodies circumferentially numbered disc (6) rotating under pawl (10) and ratchet wheel (9) regime. A shallow hollow closed container, (1) circular in plan, embodies a pointed spindle (2) built centrally into the base (3) and extending vertically to project through the top (12); the central externally vertically fluted cap (5) of the numbered disc (6) bearing on the spindle (2) with the disc (6) within the container (1). The cap (5) extends vertically beneath the disc to incorporate a ratchet wheel (9) which engages a container base (3) integral pawl (10). A finger twist of the fluted cap sets the disc in rotation, the pawl and ratchet effecting braking and eventual halt, when numbers are observed through windows in the container top.
Patent CH-572157-A5 (CH)
Title: Clockwork movement rewinding mechanism - has member coupled to dive spindle by ratchet transmitting drive one way only
IPC: F03G1/08
Filed: 1973-12-14
Abstract: The mechanism is particularly for children's toys, and has a rewinding member (6) secured to or accommodating the key, and rotating on the drive spindle (1). It is coupled to the latter by a pawl mechanism, so that if rotated in the opposite direction to the winding direction it does so without driving the spindle and consequent possible damage to the clockwork mechanism through overloading. The pawl mechanism can incorporate a ratchet ring (9) fixed to the member and a pawl spring (10) rotating with the spindle. The member can rotate in a bore in the spindle, the ratchet ring being formed by teeth on a plate fixed to it.
Patent FR-2058841-A5 (FR)
Title: Imitation marble compn
IPC: C09D167/06
Filed: 1969-09-30
Granted: 1971-05-28
Abstract: Imitation marble coating is made by mixing pigment pastes or other coloured materials into a catalysed e.g. polyester or polyurethane resin system and allowing the colourants to congregate during brushing onto a substrate such as wood, plaster, concrete, metal or plastic. Pref. a glazing coat of transparent resin is subsequently applied and polished. For building decorations, low relief mouldings, door furniture, etc. Process requires less complicated equipment than photo-printing decoration and is not restricted to natural marble patterns or colours.
Patent FR-2071197-A5 (FR)
Title: Separator and aspirator - for particles suspended in gas streams
IPC: B01D45/14
Filed: 1969-12-19
Granted: 1971-09-17
Abstract: A combined aspirator and separator e.g. for particles entrained in air streams comprising a bladed turbine linked by a thin cheek to a revolving cylindrical filter unit. Gas is forced by the turbine to the exterior of the filter cylinder promoting an initial centrifugal separation of particulates to fall to a lower collections chamber. Gas percolates the filter, where the residual particles are removed, to a central axial outlet duct fitted with a gas tight seal annulus to the external housing. The turbine and filter may be separately housed. The gas link duct debouching tangentially to the periphery of the filter cylinder.
Patent FR-2032774-A5 (FR)
Title: Recovery of carbon dioxide from ammonia- - soda process spent gases
IPC: C01D7/18
Filed: 1970-02-05
Granted: 1970-11-27
Abstract: Recovery of CO2 from spent gases from the ammonia-soda process by washing with aqueous NaOH solution. Solution may contain 2-20% wt. preferably 10% wt, NaOH. Preferably the quantity of NaOH passing through a scrubber is such that the emergent Na2CO3 solution contains 1% NaOH. This emergent solution may be used in the preparation of crude brine solution, thus precipitating any Ca and Mg impurities.
Patent FR-2151433-A5 (FR)
Title: Destructible cartridge case - for small arms and light automatic weapons
IPC: F42B5/10
Filed: 1971-05-21
Granted: 1973-04-20
Abstract: Cartridge comprises a case, projectile, propellant charge and a detonating device. The rear end of the projectile is engaged in the wall of the case, which curves inwards, to which it is rigidly united as by welding, but so that it will allow sepn. The cartridge is cylindrical over practically the whole of its length but is provided with a short conical shoulder and a rear collar, where the rim of the usual cartridge is found. The external surface is coated with a synthetic material and its rear end is closed with a combustible sheet into which the detonating capsule is inserted; the anvil is made from a propellant substance and is applied against the mass of the agglomerated powder. The cartridge has a reduced wt. as compared with the conventional type and the case does not have to be extracted from the breech after firing. When the cartridge is fired, it is pushed through the barrel of the gun, by the action of the propelling gases; a conical zone of the barrel causes the projectile to separate fromt he cartridge; the latter leaves the barrel separately and falls to the ground after a short trajectory.
Patent FR-2099819-A5 (FR)
Title: Cigarette filter - contg sponge-like material
IPC: A24D3/06
Filed: 1971-06-15
Granted: 1972-03-17
Abstract: Cigarette filter comprises a cylindrical housing partially enclosed at one end and contg. absorbent expansible sponge-like material and at least one rupturable hollow body having a water content, the or each rupturable body and the spongelike material being retained within the housing by smoke-permeable members disposed contiguous to the sponge-like material at opposite ends, and an open-end chamber within the housing for the accomodation of the end of the cigarette.
Patent FR-2165269-A5 (FR)
Title: Flexible plastic tube - includes electrical heating wires embedded in its wall
IPC: A61M25/00
Filed: 1971-12-23
Granted: 1973-08-03
Abstract: A flexible plastic (e.g. silicone elastomer) tube has >=1 electrical heating wire embedded in the wall and extending pref. axially of the tube. The heating wire may be provided in a rib on the outer face of the tube or the tube wall may be thickened in the region of the wire. The wire may be incorporated in the tube wall as it is extruded. The tube is used with heart-lung machines to prevent condensation of vapours on the inside of the tubes and membranes.
Patent FR-2139298-A5 (FR)
Title: Slider foot for chairs or furniture - with cellulose acetobutyrate disc covering cup
IPC: A47B91/06
Filed: 1972-05-04
Granted: 1973-01-05
Abstract: One part of the foot is rigidly fixed to the chair leg. A second part is jointed to the first and can retain its rest position on the floor when the chair is tilted; it comprises a spherical cup with a central orifice, concave towards the ground. The first part comprises a disc with a central orifice, a lower concave part contacting the cup's convex surface, and an upper convex part spherical element contacting the cup's concave surface. The latter element has a central mounting and spacer peg passing with play through the cup's orifice but clamped in the disc's orifice, contacting the end surface of the chair leg or on a shoulder in the disc's orifice; this element can be fixed as usual on the end surface by a screw or nail.
Patent FR-2195909-A5 (FR)
Title: Denture adhesive paste - contg. agar-agar based adhesive cream
IPC: A61C13/23
Filed: 1972-08-10
Granted: 1974-03-08
Abstract: Adhesive paste for dentures comprises an intimate mixt. of known adhesive powder with an agar-agar based adhesive cream in the ratio of 1/3:2/3. Adhesion of the denture is so strong that involuntary removal during mastication is most unlikely.
Patent FR-2226817-A5 (FR)
Title: Manually operated oscillating disc toy - has cord passed through two holes in disc centre and connected to handles
IPC: A63H1/32
Filed: 1973-04-17
Granted: 1974-11-15
Abstract: The toy makes use of the fast and periodic oscillating vibration of a body around its equilibrium position. One preferred way of doing this is to use a coloured disc which is made in rigid plastic material and which has two holes through which a piece of string, nylon or similar is passed. At its end are two rings or other type of handles, by means of which the string and consequently, the disc are made to rotate. Once this is done, a movement of the handles bringing them together or separating them will initiate a past disc rotation in either direction.
Patent FR-2241206-A5 (FR)
Title: Cooling system for ACV combustion engine - has separate pumped coolant by-pass to radiator exceeding engine cooling duct flow capacity
IPC: F01P3/20
Filed: 1973-08-14
Granted: 1975-03-14
Abstract: The engine contains cooling ducts whose outlet is connected to the radiator inlet, and whose inlet is connected to the radiator outlet. There is an auxiliary coolant line, connecting the radiator outlet with the radiator inlet via a temp. The auxiliary line is independent from the engine cooling ducts and has a greater throughput capacity than those ducts. The auxiliary line may be independent from the pipe lines connecting the engine ducts with the radiator. One of these other pipe lines may comprise a pump.
Patent CH-696918-A5 (CH)
Title: Watch, has decorative unit provided in holder that rotates with circumferential ring, for certain degrees, about axis of watch hands, where holder rotates about axis perpendicular to plane of bearing
Inventor: GUYOT ALAIN
IPC: G04B47/04
Filed: 2003-04-07
Abstract: The watch has movable decorative units (9, 15) including a circumferential ring (9) having an off-center body, mounted on a ball bearing (11). The ring and a plate (10) are rigidly connected via arms, such that they rotate together. The unit (15) is provided in a holder (13) that rotates with the ring, for 360 degrees, about an axis of watch hands. The holder rotates about an axis perpendicular to a bearings (14) plane. The bearing (11) is located in center of the watch concentrically with an axis of watch hands (8).
Patent DD-150980-A5 (DD)
Inventor: BIOLIK FELICJAN
IPC: H05B3/60
Filed: 1980-05-22
Abstract: 1. An electrical device for the direct heating of metals and/or salts in the molten state and solutions having at least one resistence heating member (7) in the form of a vessel partially immersed in the bath (5) to be heated and in which a contact material (8, 9) is disposed, in which material there is inserted an electrode (10) by means of which a voltage potential between the contact material, the heating member and the bath is produced in cooperation with at least one counter-electrode (13) acting on the bath (5), characterised in that the heating member (7) comprises at least two permanently connected moulded components, these components consisting of different materials with different physical and/or chemical properties.
Patent DD-155985-A5 (DD)
Title: Verfahren zur herstellung cyclischr octapeptide
Inventor: SIEBER PETER
IPC: C07K7/56
Filed: 1980-12-15
Abstract: Cyclische Peptide der Formel I, worin trp fuer L-Trp, D-Trp, oder einen analogen Rest, der im Indolkern ein Halogen traegt, Ac tief A f.Wasserstoff o. einen an der epsilon-Aminogruppe befindlichen Acylrest Ac einer Carbonsaeure, A fuer L-Phe, D-Phe, L-Phg oder D-Phg, oder einen entsprechenden Rest mit substituiertem oder gesaettigtem Phenylring, und B fuer den Rest einer gamma- oder delta-Aminoniederalkancarbonsaeure, welche einen gegebenenfalls substituierten cyclischen Hydrocarbylrest tragen kann, steht, sowie parmakologisch vertraegliche Salze und therapeutisch verwendbare Komplexe davon sind als Antidiabeticum in analoger Weise wie Somatostatin anwendbar. Sie sind durch konventionelle Verfahren der Peptidchemie, insbesondere durch die Cyclisierung entsprechender linearer Peptide, erhaeltlich.
Patent DD-160453-A5 (DD)
Title: Verfahren zur herstellung von benzopyranverbindungen
Inventor: SHIRATSUCHI MASAMI
IPC: A61P9/02
Filed: 1981-06-17
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung vBenzopyranverbindungen fuer die Anwendung als Arzneimittel, insbesondere zur Verhuetung und Behandlung von Krankheiten des Cardiovaskularsystems. Ziel der Erfindung ist die Bereitstellung von neuen Verbindungen mit adrenergischer alpha- und beta-Blockierungswirkung, Verringerung der Herzschlaggeschwindigkeit, Verringerungswirkung auf den Uyocardsauerstoffverbrauch, Blutstroemungserhoehungswirkung und Blutdruckerniedrigungswirkung. Erfindungsgemaess werden Verbindungen der Formel I hergestellt, worin beispielsweise bedeuten: A eine direkte Bindung oder die Bindung -O-CH tief 2-, R tief 1 eine Alkylgruppe mit 3 bis 5 Kohlenstoffatomen, eine Hydroxyalkylgruppe mit 3 bis 5 Kohlenstoffatomen u.a.; R tief 2 ein Wasserstoffatom, Halogenatom, eine Gruppe OH, NO tief 2, eine Carbamoylgruppe u.a.; R tief 3 ein Wasserstoffatom oder eine Gruppe NO tief 2; B eine direkte Bindung, eine Alkylengruppe mit 1 bis 7 Kohlenstoffatomen u.a.; n die Zahlen 1 oder 2 sowie deren Saeureadditionssalze.
Patent DD-201583-A5 (DD)
Title: Verfahren zur herstellung von alpha,beta-ungesaettigten carbonsaeurealkylestern
Inventor: DANIEL CHELLIAH
IPC: C07B61/00
Filed: 1982-02-05
Abstract: Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Methacrylsäuremethylester und anderen alpha, beta-ungesättigten Carbonsäureestern, bei dem ein Oxydehydrogenierungs/Veresterungs-Katalysator mit einem Beschickungsgemisch in Berührung gebracht wird, das eine gesättigte Carbonsäure, beispielsweise Isobuttersäure, einen aliphatischen Alkohol, beispielsweise Methanol, Sauerstoff und gegebenenfalls Wasser enthält. Die Umsetzung wird ausreichende Zeit zur Bildung eines alpha, beta-ungesättigten Carbonsäurealkylesters durchgeführt.
Patent DD-292675-A5 (DD)
Title: Verfahren zur herstellung von 1,4-dehydro-11 alpha-hydroxysteroiden der pregnanreihe
Inventor: TRUCKENBRODT GEORG
IPC: C12P33/10
Filed: 1985-11-27
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von 1,4-Dehydro-11a-Hydroxysteroiden der Pregnanreihe aus 1,4-Dehydro-11-desoxysteroiden. Es ist dadurch gekennzeichnet, dasz die Ausgangsstoffe, die veresterte Hydroxylgruppen enthalten koennen, mit Absidia repens unter streng aeroben Bedingungen in einem p H-Bereich von 4 bis 6 hydroxyliert werden.
Patent DD-253665-A5 (DD)
Title: Kuehltruhe
Inventor: COSTAN ALBERTO
IPC: F25D11/04
Filed: 1986-02-13
Abstract: Die Erfindung bezieht sich auf eine verbesserte Kuehltruhe mit einem nach oben offenen Kuehlbehaelter zum Einlagern von Tiefkuehlkost. Durch die Erfindung wird auf einfache Weise das Problem des Beschlagens der transparenten Vorderwand geloest und gleichzeitig der Energieverbrauch reduziert. Das Wesen der Erfindung besteht darin, dass eine Lampe 17 an der Aussenseite der transparenten Vorderwand 5 angeordnet ist, die gleichzeitig zur Beleuchtung des Behaelters und als Heizelement dient. Fig. 1
Patent DD-254877-A5 (DD)
Title: Zusammensetzung und verfahren zur regulierung des pflanzenwachstums
Inventor: MATOLCSY GYOERGY
IPC: A01N39/00
Filed: 1986-06-10
Abstract: Die Erfindung betrifft eine Zusammensetzung und ein Verfahren zur Regulierung des Pflanzenwachstums. Die Zusammensetzung enthaelt erfindungsgemaess neben ueblichen Hilfs- und/oder Traegerstoffen und dgl. als aktive Substanz, also als Wirkstoff, ein neues Di-(aryloxyethyl)succinat der allgemeinen Formel I, worin A fuer Wasserstoff, bestimmte Phenoxyethylgruppen oder eine Naphtoxyethylgruppe stehen kann. Als Beispiel fuer neue aktive Substanzen seien Phenoxyethylsuccinat, b-Naphtoxyethylsuccinat, 2-(4-Chlor-methylphenoxy)ethylsuccinat oder 2-Methyl-2-(2,4,5-trichlor-phenoxy)ethylsuccinat genannt. Die neuen Zusammensetzungen sind mit besonderem Vorteil bei Apfelbaeumen anwendbar. Formel I
Patent DD-268947-A5 (DD)
Title: Verfahren zur herstellung stabiler, kristalliner cephalosporin-zwischenverbindungen
Inventor: BRUNDIDGE STEVEN P
IPC: A61K31/545
Filed: 1986-08-20
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung stabiler, kristalliner Cephalosporin-Zwischenverbindungen der allgemeinen Formeln, worin X fuer HJ oder HCl steht und -Nu und -Nu bestimmte Stickstoffheterocyclen darstellen, die ueber ein Schwefelatom oder ein Ringstickstoffatom gebunden sind. Das erfindungsgemaesse Verfahren besteht darin, dass man eine an der 7-Aminogruppe und an der 4-Carboxylgruppe silylierte Ausgangsverbindung in 1,1,2-Trichlortrifluorethan oder 1,1,1-Trichlortrifluorethan mit einem Niedrigalkanol oder Wasser behandelt und die erhaltene Verbindung anschliessend in das Hydrochlorid oder Hydroiodid ueberfuehrt. Die erfindungsgemaess hergestellten Zwischenverbindungen sind frei D2-Isomer. Sie erlauben es deshalb, Cephalosporin-Breitbandantibiotika herzustellen, die ebenfalls frei an D2-Isomer, welches bei den bisher bekannten Herstellungsverfahren ueblicherweise in betraechtlichen Mengen gebildet wird, zu synthetisieren. Formeln
Patent DD-262659-A5 (DD)
Title: Verfahren zum herstellen von 2-(1-pentyl-3-guanidino)-4-(2-methyl-4-imidazolyl)thiazol und seines kristallinen dihydrochlorid-trihydrats
Inventor: ALLEN DOUGLAS J M
IPC: A61K31/425
Filed: 1987-10-27
Abstract: Die Erfindung betrifft ein Verfahren zum Herstellen von 2-(1-Pentyl-3-guanidino)-4-(2-methyl-4-imidazolyl)thiazol und seines kristallinen Dihydrochlorid-Trihydrats. Ein Amin-Substitutionsverfahren fuer 2-(1-Pentyl-3-guanidino)-4-(2-methyl-4-imidazolyl)thiazol, fuer den Vorlaeufer N-(Pentylamidino)thioharnstoff und fuer Analoga dieser Verbindungen wird zur Verfuegung gestellt. Kristallines 2-(1-Pentyl-3-guanidino)-4-(2-methyl-4-imidazolyl)thiazol-Dihydrochlorid-Trihydrat besitzt vorteilhafte Eigenschaften.
Patent DD-267915-A5 (DD)
Title: Mehrschichtige poroese gefuegekonstruktion, insbesondere zur trennung von fluessigen und festen phasen
Inventor: PAPP LAJOS
IPC: C02F11/12
Filed: 1988-03-11
Abstract: Die Erfindung bezieht sich auf eine mehrschichtige poroese Gefuegekonstruktion zur Trennung von fluessigen und festen Phasen oder/und Dispergierung von Fluessigkeiten oder Gasen, insbesondere zur Behandlung von Abwaessern und Abwasserschlammen. Die Gefuegekonstruktion enthaelt mindestens eine Tragschicht und mindestens eine aktive Filterschicht, und die letztere besteht aus chemisch inaktiven anorganischen Koernchen und aus Bindemitteln. Die Oeffnungen der aktiven Schicht sind kleiner als die der Tragschicht. Zumindest auf der Oberflaeche der die aktive Schicht bildenden Koernchen ist ein hydrophobe Eigenschaften aufweisendes Bindemittel vorgesehen, das aus Silikonharz oder/und aus Epoxydharz auf Bisphenol-A-Basis besteht. Die Regenerierung der Konstruktion kann durch einfaches Abspuelen ihrer Oberflaeche vorgenommen werden.
Patent DD-281996-A5 (DD)
Title: Vorrichtung und verfahren zur regelung der luftgeschwindigkeit
Inventor: HOFSTETTER HANS
IPC: H04B10/60
Filed: 1988-06-27
Abstract: Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Regelung der Luftgeschwindigkeit. Die neue Erfindung betrifft die Luftmengenregelung in einem Foerdersystem mit einer Luftsammelleitung, bei dem in den einzelnen Foerderstraengen die Luftmenge bzw. die entsprechende Luftgeschwindigkeit durch einen tragfluegelartigen Auftriebskoerper geregelt wird. Dieser arbeitet wie eine Drosselklappe und bewegt sich von einem Anstellwinkel von wenigstens 10 in der voellig offenen bis 90 Winkelgraden in der geschlossenen Stellung. Der Auftriebskoerper selbst regelt durch mehr oder weniger Versperren des Luftleitungsquerschnittes die Luftmenge, wobei sich in jedem Fall ein Gleichgewicht zwischen den in eine Schlieszstellung gerichteten Luftkraeften an den Auftriebskoerper sowie einem in die OEffnungsrichtung wirkenden Gegengewicht einstellt. Es kann damit eine bisher nicht erreichte Ansprechgeschwindigkeit aus jeder Lage sowie eine optimale Regelcharakteristik, zum Beispiel auf eine etwa konstante Luftgeschwindigkeit, unabhaengig von dem sich vor der Regeleinheit einstellenden Luftwiderstand erreicht werden. Fig. 1{Foerdersystem; Luftgeschwindigkeit; Luftmengenregelung; Luftsammelleitung; Antriebskoerper; Drosselklappe; Anstellwinkel; Luftleitungsquerschnitt; Luftkraefte; Regelcharakteristik}