baber/WOPTO huggingface dataset:
Patent DE-10331601-A1 (DE)
Title: Dichtungsanordnung und Verfahren zur Herstellung derselben
Inventor: BEICHL STEFAN
IPC: F16J15/32
Filed: 2003-07-12
Abstract: Die Erfindung betrifft eine Dichtungsanordnung für eine nicht-hermetische Dichtung zwischen einem Stator (11) und einem Rotor (12). DOLLAR A Die Dichtungsanordnung (10) umfasst eine Bürstendichtung (16), wobei die Bürstendichtung über mehrere Borsten (17) verfügt, die um ein Kernelement (18) gewickelt und über ein Klemmelement (19) am Kernelement fixiert sind. Die Bürstendichtung ist zumindest abschnittsweise in einem Aufnahmeraum (22) angeordnet, der von einem Stützelement (20) und einem Deckelement (21) begrenzt ist. DOLLAR A Erfindungsgemäß sind das Stützelement (20) und das Deckelement (21) zusammen mit der zwischen dem Stützelement und dem Deckelement positionierten Bürstendichtung (16) über mindestens ein Passelement (25) in mindestens einer Ausnehmung (26), insbesondere in einer axial verlaufenden Nut oder Bohrung, des Stators (11) geführt. Zusätzlich zur Führung über das oder jedes Passelement (25) erfolgt eine Fixierung der Baugruppen am Stator (11) über ein Befestigungselement (27) (Fig. 1).
Patent DE-10331739-A1 (DE)
Title: Packing of foldable material for especially printing plates has bottom formed by layer of honeycomb board and layer of paperboard, cardboard or corrugated cardboard glued to it, with side walls each consisting of separate blank
Inventor: VOGLER STEPHAN
IPC: B65D5/68
Filed: 2003-07-11
Abstract: The packing (1) of foldable material for plate-form objects such as printing plates has a bottom (2) formed by a layer of honeycomb board and a layer of paperboard, cardboard or corrugated cardboard glued to it. The side walls (3-6) each consist of a separate blank which is glued to the bottom. The side walls are each formed by cover surface (3a-6a) fixed to the bottom by adhesive, and a coiled cushioning flap (3c-6c) connected to the respective cover surface. An independent claim is included for a set of blanks especially for the forming of a packing.
Patent DE-10332759-A1 (DE)
Title: Vehicle roof has lower and/or upper boundary of transition region from guide rail to stowage chamber for sliding roof elements that can be displaced to increase passage height
Inventor: FAERBER MANFRED
IPC: B60J7/047
Filed: 2003-07-17
Abstract: The roof has several parts (4-6) movable along at least one guide rail (2) that can be stored at least partly on top of each other in a stowage chamber (3) joined to the guide rail(s) for opening the roof. A lower and/or upper boundary of a transition region (28) from the guide rail to the stowage chamber can be displaced to increase the passage height.
Patent DE-10333194-A1 (DE)
Title: Deburring tool particularly suitable for use at bore with small diameter, comprising quick exchange blade attached to axially movable holding element
Inventor: HEULE HEINRICH
IPC: B26D7/06
Filed: 2003-07-22
Abstract: The device comprises a cylindrical housing (1) serving as a handle with a conical segment turning into a cylinder of a smaller diameter (8) at the front and a longitudinal bore (5). A cylindrical blade holding element (7, 9) wider at the rear and with a groove (12) positioned alongside can be axially moved inside the bore (5) when the blade (17) accommodated inside the groove (12) and swivel mounted to the holding element (7, 9) has to be exchanged. Before the blade (17) is pulled to the front a radial positioned screw with a sunken head (4) has to be loosened.
Patent DE-10336094-A1 (DE)
Title: Hydraulisch dämpfende Lagerbuchse
Inventor: GRAEVE ARNDT
IPC: F16F13/14
Filed: 2003-08-06
Abstract: Die Erfindung betrifft eine hydraulisch dämpfende Lagerbuchse mit einem Innenteil (10), das in ein Buchsengehäuse (11) einführbar ist und an dem ein Tragkörper (28) aus einem elastomeren Material angeordnet ist, der einen Lagerkern (30) abstützt, wobei eine flüssigkeitsgefüllte Arbeitskammer (20) und eine Ausgleichskammer (22) vorgesehen sind, die über einen Kanal (16) miteinander verbunden sind. Um eine Lagerbuchse anzugeben, bei der ein funktionsgerechter Materialeinsatz vorgenommen werden kann und die somit an viele unterschiedliche Einsatzzwecke angepasst werden kann, ist das Innenteil (10) in ein Unterteil (12) und ein Oberteil (14) unterteilt, wobei der Tragkörper (28) nur mit einem der beiden Teile (12, 14) verbunden ist.
Patent DE-10337030-A1 (DE)
Inventor: ADAM ACHIM
IPC: C25D3/60
Filed: 2003-08-12
Abstract: The invention relates to the use of lead-free sliding layers in the laminated composite materials for slide bearings or bushes. According to the invention, the laminated composite material comprises a support layer, an antifriction layer (3) produced from a copper alloy or an aluminum alloy, an intermediate nickel layer (2) having a thickness >4 mum and a sliding layer (1) consisting of approximately 0 to 20% by weight of copper and/or silver and the remainder tin. The sliding layer is electrodeposited from a methlysulfonic acid electrolyte.
Patent DE-10340153-A1 (DE)
Title: Bumper attachment structure contains vehicle cross-bearer for bumper on passenger compartment side, whereby bumper is connected to cross-bearer in force-locking manner by at least one attachment arrangement
Inventor: EWERT ROLF
IPC: B60R19/24
Filed: 2003-09-01
Abstract: The bumper attachment structure (1) has a vehicle cross-bearer (3) on the passenger compartment side for the bumper (5), whereby the bumper is connected to the cross-bearer in a force-locking manner by at least one attachment arrangement (7). Alternatively, the bumper can be directly attached to the cross-bearer. The cross-bearer has at least one flange (11) or holder to which the bumper is attached by the attachment arrangement in a force-locking manner. An independent claim is also included for a method of attaching a bumper to a motor vehicle cross-bearer.
Patent DE-10342541-A1 (DE)
Title: Arbeitsbelastungsabhängige Dialogführung
Inventor: KRONENBERG SUSANNE
IPC: G10L15/22
Filed: 2003-09-15
Abstract: Zur Bedienung solcher Assistenzsysteme werden zunehmend Sprachdialogsysteme eingesetzt, da hierbei angenommen wird, dass eine rein sprachliche Interaktion einen Fahrzeugführer weniger von seiner Fahraufgabe ablenkt, als dies eine haptisch-visuelle Bedienung bedingt. Reagiert der Sprachdialog aber nicht adäquat auf die Fahrsituation, sondern fordert trotz hoher Arbeitsbelastung des Fahrers weiter die Aufmerksamkeit des Fahrers, so ist es fraglich, ob diese Annahme, der Entlastung des Fahrzeugführers durch das Sprachinterface, korrekt ist. Allgemein gibt ein Sprachdialogsystem im Rahmen des mit dem Systemnutzer geführten Sprachdialoges Sprachaufforderungen aus und wartet hierauf Äußerungen des Nutzers ab. Um gegebenenfalls Nutzeräußerungen zu verstehen, wird hierzu ein Spracherkenner aktiviert. In derjenigen Situation, in welcher keine Nutzeräußerung erfolgt, wird der Spracherkenner nach einer bestimmten Zeit (Final-Timeout) geschlossen und das Sprachdialogsystem reagiert wiederholt mit einer erneuten Sprachaufforderung. Um adäquat auf die aktuelle Fahrsituation reagieren zu können, wird in erfinderischer Weise vorgeschlagen, im Zusammenhang mit dem Sprachdialog die aktuelle Arbeitsbelastung des Systemnutzers zu ermitteln und hierdurch den Final-Timeout dynamisch, auf Grundlage der ermittelten Arbeitsbelastung, in seiner zeitlichen Dauer zu variieren. Dabei wird die zeitliche Dauer des Final-Timeout proportional zur Zu- bzw. Abnahme der Arbeitsbelastung verlängert bzw. ...
Patent DE-10346622-A1 (DE)
Title: Vorrichtung zur Ansteuerung von Schutzmitteln für einen Fußgänger
Inventor: GROEGER ULRIKE
IPC: G01S13/931
Filed: 2003-10-08
Abstract: Es wird eine Vorrichtung zur Ansteuerung von Schutzmitteln (6) für einen Fußgänger vorgeschlagen, die eine Umfeldsensorik (1) zur Bestimmung einer Relativgeschwindigkeit zwischen einem Fahrzeug, in dem sich die Vorrichtung befindet, und dem Fußgänger aufweist. Die Vorrichtung steuert die Schutzmittel (6) in Abhängigkeit von der Relativgeschwindigkeit und einer Eigengeschwindigkeit des Fahrzeugs an.
Patent DE-10347056-A1 (DE)
Title: Verfahren zur Regelung eines Magnetventils
Inventor: KOEHLER EKKEHARD
IPC: H01F7/18
Filed: 2003-10-07
Abstract: Die Erfindung betrifft ein Verfahren zur Regelung eines Öffnungs- und/oder Schließvorgangs eines Magnetventils durch Regelung eines Verlaufs eines Stroms und/oder einer Spannung, mit welchen eine Spule des Magnetventils zur Bewegung eines Steuerventilglieds durchströmt bzw. versorgt wird, wobei mehrere Zeitpunkte des Öffnungs- und/oder Schließvorgangs detektiert werden, welche sich insbesondere aus physikalischen Kennwerten des Stromverlaufs und/oder des Magnetventils ergeben. Als Regelgröße zur Regelung des Strom- und/oder Spannungsverlaufs beim Öffnungs- und/oder Schließvorgang wird die zeitliche Dauer zwischen den detektierten Zeitpunkten des vorhergehenden Öffnungs- und/oder Schließvorgangs verwendet.
Patent DE-10348889-A1 (DE)
Title: Bedienvorrichtung
Inventor: DORWARTH RALF
IPC: H03K17/97
Filed: 2003-10-15
Abstract: Bei einem Ausführungsbeispiel der Erfindung kann eine Bedienvorrichtung in Form eines Schiebereglers (11) geschaffen werden. Auf einer Glaskeramikplatte (13) läuft ein Schiebeknebel (15) mit einem Schiebe-Magneten (18). An einer unter der Glaskeramikplatte (13) angeordneten, wellenförmigen Rastkulisse (20) mit Kulissenbahn (21) kann ein walzenförmiger Rast-Magnet (26) bewegt werden, wobei diese Bewegung die Rastmöglichkeiten beinhaltet. Über Feststellung der Position des Rast-Magneten (26) können somit verschiedene Positionen und somit verschiedene Funktionen angesteuert werden.
Patent DE-10351310-A1 (DE)
Title: Vorrichtung und Verfahren zum Betrieb eines Coriolis-Massendurchflussmessers
Inventor: LESJAK RALF
IPC: G01F1/84
Filed: 2003-10-31
Abstract: Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Betrieb eines Coriolis-Massendurchflussmessers mit wenigstens einem Messrohr und ist dadurch gekennzeichnet, dass an das Messrohr wenigstens zwei Wirk-Baugruppen angebracht sind, die jeweils als Erreger (Aktor) und/oder als Messsignalaufnehmer (Sensor) betreibbar sind. Die Wirk-Baugruppen sind als Tauchanker-Geber mit Magnetkern ausgebildet. Jede Wirk-Baugruppe ist entweder als Sensor oder als Aktor oder gleichzeitig als Aktor und als Sensor betrieben. Jede Wirkbaugruppe wird durch einen ihr zugeordneten Schalter zwischen der Betriebsweise als Sensor und Aktor umgeschaltet.
Patent DE-10353063-A1 (DE)
Title: Verfahren zur Herstellung von Amino-Gruppen tragenden Siliciumverbindungen
Inventor: KORNEK THOMAS
IPC: C07F7/08
Filed: 2003-11-13
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von (N-Organylaminoorganyl)- und (N,N-Diorganylaminoorganyl)triorganylsilanen aus entsprechenden (Triorganylsilylorganyl)halogeniden und N-Organyl- bzw. N,N-Diorganylaminen sowie (N-Cyclohexylaminomethyl)trimethoxysilan und [N,N-Bis-(N',N'-dimethylaminopropyl)aminomethyl]triorganylsilan, erhältlich mittels dieses Verfahrens.
Patent DE-10356292-A1 (DE)
Title: Door lock for use in road vehicle incorporates locking bolt and blocking pawl and has spiral loading spring with straight ends engaging parts of lock lever mechanism
Inventor: SPINDLER JOERG
IPC: E05B65/32
Filed: 2003-11-28
Abstract: The road vehicle door lock (2) has a pivoting locking bolt (3) and a blocking pawl (4). The lock incorporates a pivoted handle or loading element (15) and has a loading spring (5) with a coiled central portion (6) and straight ends (7,8) engaging parts of the lock lever mechanism. The axis (9) of the spiral part of the spring lies parallel to the pivoting axis (10) of the blocking pawl.
Patent DE-10356451-A1 (DE)
Title: Fluid influencing device for e.g. heater, has electromagnetic coils that are wound around a pipe, with one group of coils supplied with magnetic tension to generate two opposing magnetic poles
IPC: B01J19/08
Filed: 2003-12-03
Abstract: Electromagnetic coils are wound around a pipe, with one group of coils supplied with magnetic tension to generate two opposing magnetic poles.
Patent DE-10358195-A1 (DE)
Title: Verfahren zur Überwachung eines in einem Abgasbereich einer Brennkraftmaschine angeordneten Bauteils
Inventor: RIPPER WOLFGANG
IPC: F02D45/00
Filed: 2003-12-12
Abstract: Es wird ein Verfahren zur Überwachung eines in einem Abgasbereich (12) einer Brennkraftmaschine (10) angeordneten Bauteils (18) vorgeschlagen, bei dem das Tiefpassverhalten, welches durch die Wärmekapazität des Bauteils (18) bestimmt ist, überprüft wird durch eine Bewertung eines Maßes einer ersten Abgastemperatur (TvK), die vor dem zu überwachenden Bauteil (18) auftritt, und einer zweiten Abgastemperatur (TnK), die von einem zweiten Temperatursensor (TH) nach dem zu überwachenden Bauteil (18) erfasst wird.
Patent DE-19503069-A1 (DE)
Title: Wash=out device for residual concrete reprocessing
Inventor: BOZENHARDT FRIEDRICH
IPC: B03B5/56
Filed: 1995-02-01
Abstract: This washout device for residual concrete reprocessing plants has a mixing and conveying device (12) in a vessel. This is in the form of a screw, and also includes at least two scooping systems (21,25); in a novel design, a common chain drive is used for both devices.  Pref. the mixing and conveying device (12) has a chain wheel for the drive chain (17) at the end. This is supported by fixed guide rollers (19) and the adjacent vessel wall (18). The other end is fixed to a shaft (20) carrying a scoop wheel (21). Beneath the shaft end, a bulkhead wall (30) is set immediately after the scoop wheel. This separates the vessel (11) into pre- and after wash chambers.
Patent DE-19507195-A1 (DE)
Title: Single lever mixing battery for operation of overflow warm water store
Inventor: PAWELZIK MANFRED
IPC: F16K11/078
Filed: 1995-03-02
Abstract: The single lever mixing battery has a tempering device, a water mixing chamber and a mixed water outlet. In the battery there is a valve seat face with three openings, joined respectively to the cold water supply, a cold water supply for the overflow water warm store and a cold water channel to the mixing chamber, into which a warm water return pipe of the store opens out. At one opening there is a control disc with an inlet, an overflow chamber and an outlet, movable with two degrees of freedom. With a rotary movement, the temperature is adjusted and with a radial movement, the water throughput is adjusted.
Patent DE-19513381-A1 (DE)
Title: Light, tubular composite design constructional component
Inventor: ZIEGLER FRANK
IPC: B23K26/402
Filed: 1995-04-08
Abstract: The composite component consists of an outer (1), core (2) and inner tube (3) in coaxial arrangement, with the core tube providing spacing between the outer and inner tube. The core tube contains recesses, forming ribs (4) of defined contour and cross-sectional dimensions. The core tube is firmly coupled to the inner and outer tube at the contact faces by material flux such that the component has a high tensile, compression, bending, and torsion strength at a low weight. Pref. the ribs of the core tube have a regular geometrical contour and cross-sectional dimensions.
Patent DE-19515508-A1 (DE)
Title: Control device for IC engine-auto gearbox combination drive-train
Inventor: OHYAMA YOSHISHIGE
IPC: F02B75/12
Filed: 1995-04-27
Abstract: A control system for a combination of IC engine and auto gearbox uses the relationship between wheel speed, engine speed and air-fuel ratio to derive the required wheel torque and car speed. Instead of "air-fuel ratio" in the above, one may read "throttle flap angle", "intake vacuum". One may also read "relationship between expansion and compression strokes ". This gives optimum acceleration or optimum fuel economy, depending on which mode the driver selects. The metering and timing of the fuel injection is controlled according to the variation in intake air-flow and the gas pedal position.
Patent DE-19519122-A1 (DE)
Title: Domestic vacuum cleaner
Inventor: WEINL HELMUT
IPC: A47L9/10
Filed: 1995-05-17
Abstract: The domestic vacuum cleaner has a fan (7) to direct hot air onto the surface to be cleaned. The air temperature is between 100 and 200 degC. The fan is attached in detachable fashion in the vicinity of the suction nozzle, inside the cleaner housing. It can be switched on independently of the suction fan.  The vacuum cleaner is a hand-operated type with a handle (5) acting as the outlet (6) for the suction air. In the pipe wall nearby are openings into which room air can be drawn. Between these and the air outlet is an adhesive filter for dust particles. Near the openings, the air pipe is necked. The filter is removable.
Patent DE-19520340-A1 (DE)
Title: Developer and toner container
Inventor: KOSUGE KATSUHIRO
IPC: G03G15/01
Filed: 1995-06-02
Abstract: The developer has a detachable toner container (44), which slides into a carrier and support pad (113). The toner entrance and exit points are conical, as is the entrance of the support part, with the width getting smaller towards the ends. The toner container has an attachment (119C). The carrier and support parts has a container (109C), a sealing unit (114C), an opening (111), a screw conveyor (91C) and a roller (97C). The entire system rotates, with the container entrance pointing to a certain direction. Conical shape ensures complete contact with the carry and support device, and minimises pressure during use.
Patent DE-19522328-A1 (DE)
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/27
Filed: 1995-06-20
Abstract: An injection molding nozzle for cold runner molding thermosetting molding material in a heated mold. A bore extends centrally through the nozzle to convey liquid molding material from a cooled distribution manifold to a gate leading to a cavity. An integral cooling fluid conduit has a helical portion extending concentrically around the molding material bore. Cooling fluid circulates from a radial inlet portion to a radial outlet portion of the cooling fluid conduit to cool the liquid molding material flowing through the central bore.
Patent DE-19523399-A1 (DE)
Title: Hand gun, e.g. pistol, revolver or rifle
Inventor: WUERGER FRANZ
IPC: G01S13/88
Filed: 1995-06-28
Abstract: The hand gun (1) has an integrated signal receiver unit (2,3) with a signal evaluation unit (4), which transmits a signal into the weapon after evaluating an encoded received signal. The signal transmitted into the weapon affects functionally important components of the gun. The transmitted signal acts upon a destruction unit (6) in the gun or triggers a mechanical or electronic blocking device inside the gun. The destruction unit can be a pyrotechnic arrangement. The signal can be passed to the gun via satellite, radio or similar from an authorised system.
Patent DE-19524990-A1 (DE)
Title: Cruise control e.g. for diesel engine vehicles
Inventor: LISSEL ERNST DIPL ING
IPC: F02D9/04
Filed: 1995-07-08
Abstract: The processor control (3) monitors the engine condition and the vehicle dynamics e.g. spacing from leading vehicle, and regulates the vehicle speed w.r.t. the driver`s control settings. The vehicle speed is reduced by controlling the fuel inlet. If greater retardation is required then a control valve (7) in the exhaust duct is progressively closed. This provides noticeable warning for the driver to be prepared to brake. The exhaust flow valve is positioned between the engine and the catalyst and has a minimum flow setting. The heat generated through use of the exhaust flow valve can be collected to heat the cab.
Patent DE-19526074-A1 (DE)
Title: Powder for forming sintered insulating glaze layer
Inventor: FRIESE KARL-HERMANN DIPL PHYS
IPC: C04B35/111
Filed: 1995-07-18
Abstract: Powder mixt. for sintered electrically insulating layer prodn. consists of crystalline non-metallic material and glass-forming material, the crystalline non-metallic material having a sintering activity leading to formation of a filled glaze on sintering at a temp. corresponding to at least the melting temp. of the glass-forming material and having itself a relative sintered density of \- 95%. Also claimed is a method of producing an electrically insulating ceramic layer using the above powder mixt.
Patent DE-19528305-A1 (DE)
Inventor: LINKER KARL-HEINZ
IPC: C07D239/54
Filed: 1995-08-02
Abstract: New substituted phenyluracils have the general formula (I), in which R<1> stands for hydrogen, cyano or halogen; R<2> stands for cyano, carbamoyl, thiocarbamoyl, halogen or optionally halogen-substituted alkyl or alkoxy; R<3> stands for the group A<1>-A<2>-A<3>, in which A<1>, A<2> and A<3> have the meanings given in the description; R<4> stands for hydrogen, cyano, carboxy, carbamoyl, thiocarbamoyl, nitro, halogen, alkoxycarbonyl, alkylamino, dialkylamino, or for alkyl, alkenyl, alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylthio, alkenylthio or alkinylthio optionally substituted by hydroxy, nitro, cyano, halogen or alkoxy; R<5> stands for hydrogen, cyano, carboxy, carbamoyl, thiocarbamoyl, nitro, halogen, alkoxycarbonyl, alkylamino, dialkylamino, or for alkyl, alkenyl, alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylthio, alkenylthio or alkinylthio optionally substituted by hydroxy, nitro, cyano, halogen or alkoxy; and R<6> stands for hydrogen, hydroxy, amino, cyano, or for alkyl, alkenyl, alkinyl, alkoxy, alkenyloxy, alkylthio, alkylsulfinyl, alkylsulfonyl optionally substituted by cyano, nitro, halogen or alkoxy, or for cycloalkyl or cycloalkylalkyl optionally substituted by cyano, halogen or alkyl, with the exception of compounds 1-(4-chloro-2-fluoro-phenyl)-1,2,3,4-tetrahydro-2,4-dioxo-pyrimidin-5- carbonitril, 1-(3-chloro-4-fluoro-phenyl)-1,2,3,4-tetrahydro-2,4-dioxo-pyrimidin-5- carbonitril, 1-(4-chloro-3-trifluoromethylphenyl)-1,2,3,4-tetrahydro-2,4-dioxo-pyri midin-5-carbonitril, 1-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-2,4-dioxo-pyrimidin-5-carbon itril, 1-[4-chloro-2-fluoro-5-(2-propinyloxy)-phenyl]-3-methyl-2,4-(1H,3H)-py ridindione. Also disclosed is a process for preparing these compounds and their use as herbicides.
Patent DE-19531010-A1 (DE)
Title: Solenoid valve for motor vehicle slip-controlled hydraulic brakes
Inventor: BAREISS ALEXANDER DIPL ING
IPC: B60T8/48
Filed: 1995-08-23
Abstract: The end of the solenoid plunger is fitted with the valve element (36) made from a different material to the plunger and with a central bore. The valve element is pressed onto a main valve seat with its outer end and onto a secondary valve seat in a disc (34) pressed into the end of the plunger. A retaining ring controls the free movement of the valve element. The valve element is retained by a sleeve pressed into the end of the plunger and with a rolled over outer end to contain the valve element. The free movement of the valve element is less than the full stroke of the plunger.
Patent DE-19538425-A1 (DE)
Title: Lock for repeater casing of rifles
Inventor: ESCHEMANN WILHELM
IPC: F41A3/18
Filed: 1995-10-16
Abstract: The lock comprises a control slider (9) which can be slid in a straight line by a chamber bolt. The control slider has a lock head (8) with projections (12) for locking to the barrel (2).  The lock head executes a rotary movement for unlocking, in a first movement portion, in which the control slider is axially movable in the breechblock carrier (7). It executes a longitudinal movement in a second movement portion together with the control slider and the breechblock carrier.
Patent DE-19539952-A1 (DE)
Inventor: HEINRICH PETER DIPL BIOL DR
IPC: C12R1/15
Filed: 1995-10-26
Abstract: The invention concerns processes for preparing O-acetylserine, L-cysteine and sulphurous compounds derived therefrom using feedback-resistant serine acetyl transferases. In comparison with the wild-type enzyme, these serine acetyl transferases have reduced sensitivity to the inhibitor L-cysteine and a protein sequence which, in comparision with the wild-type enzyme, displays at least one mutation or deletion. The processes are characterized in that the mutation lies in the sequence region of the amino acid in position 97 up to and including the amino acid in position 273 or the deletion lies in the carboxy terminal sequence region as from the amino acid in position 227, position 1 being the starter methionine of figure (5) (SEQ ID NO: 1) and the mutation from Met to Ile in position 256 being excluded.