baber/WOPTO huggingface dataset:
Patent DE-19537924-A1 (DE)
Title: Method and appts. for cooling a weld seam region during laser welding
Inventor: ALBER GERHARD
IPC: B23K26/146
Filed: 1995-10-12
Abstract: Cooling of a weld seam region (4) during laser welding of sheets or strips (6,7) takes place by introduction of a liquid cool and in such a way that the weld seam region as close as possible to the welding focus is cooled. At the same time, an inert gas (helium, argon or something similar) under pressure is continuously fed between the liquid coolant and the weld seam region (4) to separate the latter from the coolant. The appts. includes a nozzle unit with three nozzles (12,14,15) foreseen respectively for a protective gas, an inert gas and a liquid coolant. The unit is attached to the welding head or to a stationary machine bed.
Patent DE-19544204-A1 (DE)
Inventor: VETTER RICHARD
IPC: F28F3/14
Filed: 1995-11-28
Abstract: The basic body for the production of the heat exchanger comprises two equally sized panels (1) of metal plate. The panels are not entirely flat, but are pre-treated and have parallel U-shaped raised formations which extend crossways to the panel and upwards on the upper panel and downwards on the lower panel, being displaced in relation to one another by a half division. The panels are welded to each other on the outer edges (2) and by introduction of a pressure medium are deformed by arching to form water channels. The panels before their joining by welding are provided with their raised formations to form the outer bends of the transitions.
Patent DE-19545414-A1 (DE)
Inventor: SCHWOTZER GUENTER DR
IPC: G01N21/41
Filed: 1995-12-06
Abstract: The invention relates to an optical sensor for identifying organic compounds, in particular hydrocarbons. The object of the invention is to define said sensor which detects selectively known substances using subassemblies producing spectral shifts. The object is attained in that a spectral band-pass filter is used which contains at least one layer with a modifiable, optical thickness of  lambda /4 or of lambda /2 or a multiple thereof. Said layer has hydrophobic properties and organic affinity groups, the selection of which can be adapted to the substance to be detected.
Patent DE-19547320-A1 (DE)
Title: Production of sterile, ammonia-free liquid manure by composting organic waste
Inventor: JEKAT HERBERT PROF DR ING
IPC: C05F17/00
Filed: 1995-12-19
Abstract: Process to produce sterile, ammonia-free liquid manure from biological residues and wastes, comprises the extraction of ammonia and low-boiling materials by boiling liquid from fermentation for \- 1 hr, and removal of the extracted materials by steam bubbles. The boiling forms the ninth stage, the previous 8 numbered stages contribute to the bio-degradation of the organic material.
Patent DE-19549110-A1 (DE)
Title: Door lock with security plate
IPC: E05B63/12
Filed: 1995-12-29
Abstract: The lock's security plate (9) is mounted with bolts in the door frame parallel with the door opening. An angle iron (16) is mounted over the edge of the door frame in line with the security plate. The door lock has a multi-layer lock bolt (5) which passes through openings in the angle iron and the security plate. The plate incorporates three lugs (3) which extend at right angles from the plane of the plate. The top layer of the multi-layer bolt has a rectangular opening (2), the edge of which catches behind the central lug when attempts are made to open the door forcibly.
Patent DE-19611333-A1 (DE)
Title: Substrate for germinating and cultivating plants
Inventor: MEIER DIETER
IPC: A01G9/10
Filed: 1996-03-22
Abstract: The substrate comprises a damp carrier material (4) in loose or granular form and a layer of bonding agent which sticks to the carrier material and hardens. The carrier material is preferably granulated or a binding agent foam. The binding agent can be gypsum or cement. The carrier material can be a mixture of two or more materials. After bonding the substrate can have a substantially loose particle form.
Patent DE-19614612-A1 (DE)
Title: Waste water and solids treatment process separates substances at single site
IPC: B01D21/00
Filed: 1996-04-15
Abstract: A process recovers reusable materials and energy from  mixtures containing solids, aqueous and fatty wastes. The novelty is that: (a) the different classes of wastes (solid, aqueous and fats) are separated from each other and are then treated by suitable processes, enabling them to be recovered and used to their greatest advantage; (b) the resulting waste water is subjected to biological treatment or anaerobic treatment.  The process consists of the following stages: (1) acceptance, (2) coarse separation, (3) treatment of screenings, (4) separation of fatty sludge, (5) cleaning fatty sludge, (6) transfer of treated water and sludge, (7) thermal storage, (8) floatation, (9) transfer of floatation separates, (10) transfer of the waste water less greased and sand, (11) washing of sand particles, (11) transfer of the sand washing water, and (13) storage of the cleaned sand.
Patent DE-19621055-A1 (DE)
Title: Method of on-line adaptive control of diverse systems
Inventor: GRIMM ANDREAS
IPC: G05B23/02
Filed: 1996-05-24
Abstract: This method is used to analyse the transfer function of an automatic control transmission path, by comparing desired- (f) and associated actual (g) values. Quality parameters are derived from these values, which do not depend on the type of desired value, e.g. they are independent of the physical nature or variability of a signal. These parameters are designated: CORR, RMSL, LMSL, MAXL, RMSE, MAXE and OREL (see ahead).
Patent DE-19629208-A1 (DE)
Title: Use of modified polyamide with selective groups bonded to amine
Inventor: MUELLER EGBERT DR
IPC: C08F290/14
Filed: 1996-07-19
Abstract: The use of separating agents (I) of modified polyamide is claimed for simulated moving bed (SMB) separation. (I) containing separation effectors linked to the amino groups of the polyamide by bridging groups.
Patent DE-19630341-A1 (DE)
Title: Semiconductor device e.g. IGBT for high voltage inverter
Inventor: UENISHI AKIO
IPC: H01L29/739
Filed: 1996-07-26
Abstract: The IGBT device has an n-type silicon substrate (1) with a large resistance formed by a zone melting process. A p-type implantation region (4) is formed in a first region together with an n-type implantation region (5). A further p-type implantation (3) is formed on the opposite side of the substrate and it is bordered by an n-type buffer zone (2). The implantation layer has a diffusion depth relative to the buffer zone not smaller than 2  mu m.  An ion implantation of phosphor is made to form the n-type buffer zone. An ion implantation of boron creates a p-type zone (3b) that is deeper than the n-type buffer zone. The main conduction state is achieved by applying a positive voltage on a gate electrode (7) that is between the emitter electrode (10) and the collector electrode (11). The concentration of a p-type region (3a) is less than or equal to 1.1 times the square root of the product of the concentration of the buffer zone (2) times the total concentration of the latter p-type implantation layer (3a,3b).
Patent DE-19635312-A1 (DE)
Inventor: MELOCCO MICHAEL
IPC: B25C1/14
Filed: 1996-09-02
Abstract: The powered hammer for driving pins and the like into a surface, using a powder propellant in cartridges for the driving force, has a piston return unit as a shaped component (11) mainly in a closed cellular structure. The shaped component (11) is of a polyurethane elastomer.
Patent DE-19637665-A1 (DE)
Title: Attachment to meat mincing machines to promote homogeneity
Inventor: MOESSMER MICHAEL
IPC: B02C18/30
Filed: 1996-09-16
Abstract: A cutting, mixing and emulsifying system is claimed for mincing machines used for producing minced meat and sausage filling.  The equipment (1) is for an additional process following main mincing machine (2) to which it is secured by cap nut (3).  The drive shafts of the two units are loosely coupled at (19).  A screw (17), having a uniform or variable pitch, has blades whose edges show notches (18) which act as overflows or flow diverters, delivering material to a final cutting section (10)
Patent DE-19637951-A1 (DE)
Inventor: KWON SOON BUM
IPC: G02F1/1337
Filed: 1996-09-17
Abstract: A method is disclosed for controlling a pretilt angle direction for a liquid crystal cell comprising the steps of first setting the magnitude of pretilt angle and a plurality of pretilt angle directions in an alignment layer. This first step is achieved by irradiating linearly the alignment layer with polarized or unpolarized UV light. One of the plurality of pretilt angle directions is then selected by exposing the alignment layer to UV light a second time.
Patent DE-19640804-A1 (DE)
Title: Diagnostic magnetic resonance imaging device
Inventor: FRESE GEORG DIPL PHYS
IPC: G01R33/38
Filed: 1996-10-02
Abstract: The device has a pair of coaxial, spaced coils (4,6) generating a homogenous magnetic field in the imaging volume (1) between them, with transverse access to the imaging volume.  The mean diameter (D) of the coils corresponds to the relative axial spacing (a) between them, with the magnetic feedback path coupling the coils together (12;16,18) having at least one opening for providing transverse access.
Patent DE-19643781-A1 (DE)
Inventor: GELLERMANN CARSTEN DIPL CHEM
IPC: C09D7/62
Filed: 1996-10-29
Abstract: Spherical particles of 5nm-10 mu m contain stannic oxide (SnO2) and optionally at least one further oxide of a main group 1-5 element and/or a transition metal (optionally containing organic groups). The surface of the particles is modified by organic groups, and the SnO2 content of the particles is 0.1-99.9 (preferably 10-90) wt.%. Also claimed are preparation methods of the particles, as follows: (1) forming one or more shells of metal oxide (or metal oxide mixtures) on spherical metal oxide particles, by partial or complete hydrolytic condensation of one or more compounds of M' (and/or their pre-condensates), optionally in presence of catalyst and/or solvent, by the action of water or moisture: (2) hydrolytic condensation of a mixture of tin compounds and at least one compound of M' (or a pre-condensate) as in (1); or (3) emulsifying an aqueous phase containing at least tin in the form of a precipitatable dissolved oxide (hydrate) or sol in an organic phase, using an emulsifier, precipitating SnO2 hydrate or other oxide (hydrate) in the water droplets (before, during or after emulsification) using a solution of ammonium, phosphonium or other onium compound or long-chain organic acid salt (already in the OH or H form or formed in situ) and removing the water by distillation. M' = silicon, boron, aluminium, phosphorus, tin, lead, transition metals, lanthanides and actinides
Patent DE-19647609-A1 (DE)
Title: Use of poly:ol, and/or ethylene oxide and/or propylene oxide derivatives
Inventor: HUFF JUERGEN DR
IPC: C11D3/20
Filed: 1996-11-18
Abstract: Use of 0.1-10 wt.% of at least trihydric alcohol and their reaction products with ethylene oxide (EO) and/or propylene oxide (PO) as additive to increase the rate of dissolution of particulate laundry detergent formulations in water.
Patent DE-19650634-A1 (DE)
Title: Electro-optical liquid crystal display containing medium with low threshold voltage and short switching time
Inventor: TARUMI KAZUAKI DR
IPC: C07C69/753
Filed: 1996-12-06
Abstract: - Electro-optical liquid crystal display (LCD) has (a) an orientation layer for orienting the liquid crystal (LC), in which a significant component of the field is parallel to the LC layer, and (b) a LC medium with positive dielectric anisotropy. The novelty is that the medium contains a mesogenic trans-4-(cyclohexyl) -(2,2-difluoro-vinyloxy)-cyclohexane of formula (I). R = 1-15 carbon (C) alk(en)yl, which may be mono-substituted by cyano (CN) or trifluoromethyl (CF3) or at least mono-substituted by halogen and in which methylene (-CH2-) group(s) may be replaced by oxygen (-O-), sulphur (-S-), carbonyl (-CO-), carbonyloxy (-CO-O-), oxycarbonyl (-O-CO-) or carbonate (-O-CO-O-) without directly linked O atoms. Also claimed is a LC medium containing (I) and chloro-, fluoro-, fluoroalkyl- or fluoroalkoxy-phenyl compound(s) (II), cyclic compounds (III) and/or benzonitrile(s) (IV).
Patent DE-19654495-A1 (DE)
Title: Heat accumulator for cooling water in motor vehicle
Inventor: SCHMIDT BURKHARD DIPL ING
IPC: F01P11/20
Filed: 1996-12-18
Abstract: Storage of the engine heat is by a two substance mixture which guarantees an optimum transfer of heat. By using modern insulating materials a long storage is made possible.  Integrated or external water circulating pumps may be fitted, and control equipment inside the vehicle provides all the necessary indications and operating elements. The ratio of the two substances can be varied to arrive at an optimum storage effect.
Patent DE-19654692-A1 (DE)
Title: Semiconductor power device, e.g. insulated gate bipolar transistor
Inventor: SEOK KYUNG-WOOK
IPC: H01L29/06
Filed: 1996-12-30
Abstract: The device includes a semiconductor substrate with an n-type drift region (3), a p-type base region (4) inside the drift region, and multiple bow-formed n-type source regions inside the base region. The drift region is inserted in the surface of the substrate. A serpentine formed insulated gate electrode is provided in the n-type inversion layer channel of the base region.   The surrounding perimeter of the base region is on the surface also and defines a PN-junction with the drift region. The corresponding perimeter lines of the source regions define concave segments separated from the perimeter lines of the base region. The multiple source regions are formed as a row of concave source regions, with one of their ends connected to the end of another source region. The source region is electrically connected to the drift region when a predetermined voltage is applied.
Patent DE-19655146-A1 (DE)
Title: Energy-absorbing adjustable seat device for vehicles, consisting of two turning parts with holes, sliding block, guide tubes or rails and spindle
Inventor: GO GIOK DJIEN
IPC: B60N2/42
Filed: 1996-12-28
Abstract: The adjustable seat device (130) includes a spindle (13) by turning which the adjustments are made, two turning parts with holes, a sliding block (30) and guide rails or tubes (71). As the seat is moved along, it can turn about an angle ( alpha o) or ( alpha \=m) as a result of alteration of the seat outline Po or P\=m The one-piece adjustable-length bearing and sliding blocks with their guide tubes act as reinforcement elements.
Patent DE-19706911-A1 (DE)
Title: Authorisation card for telephone or radio communications network
Inventor: WICHT JULIAN
IPC: B42D25/00
Filed: 1997-02-20
Abstract: The authorisation card (1) has an incorporated identification, e.g, a code number, which becomes visible after removal of a seal, which may be provided as an opaque peel-off foil (2). The seal can be removed by the purchaser of the card, with the revealed code number supplied to a service provider, e.g. via a telephone connection, to allow the required service to be provided.  Preferably, advertisements are provided on the card for the service provided. The identification may be provided on an additional carrier medium and the card itself is the seal.
Patent DE-19706988-A1 (DE)
Title: Combustion system for industrial boiler
Inventor: GRUCZA GINTER
IPC: F23N1/02
Filed: 1997-02-21
Abstract: The apparatus is used for reduction of nitrogen oxides in the flue gases from an industrial boiler. There are four rows of burners (18-21) in the sidewall (7) of the combustion chamber. The lowest two rows have four burners each. The burners in each row are vertically aligned to form vertical rows. The top burners may discharge powdered coal at an angle. The top two rows of burners have two extra burners, making rows of six burners in all. There are three grinding mills supplying the burners with powdered coal. There are nozzles for additional air (22) above the top row of burners. An under-stoichiometric mixture burns in the first two combustion zones (25a,b) and above that there is a NOx reduction zone in which the reaction:- 2NO + 2CnHm + (2n + n/2-1)O2 changes to N2 + 2nCO2 + H2O can take place.
Patent DE-19708096-A1 (DE)
Inventor: HORN WOLFGANG DR
IPC: B23Q3/155
Filed: 1997-02-28
Abstract: The invention relates to a machining centre, wherein at least one work spindle with a preferably horizontal spindle position can be displaced preferably in the direction of X, Y and Z and each work spindle is allocated at least one substantially circular tool store which can rotate around a central axis and which is provided with storage locations so that the working spindle (s) can deposit one or several tools. The invention is characterized in that a) the tool store (2) comprises one or several tool disk(s) (3) which are arranged parallel to each other and grouped together in a drum store, wherein b) the tool disk(s) can be individually or jointly rotated around a central axis (4) which is perpendicular to the spindle axis and c) the tools (5) can be inserted with their tips (6) forward into tool holders (7) in the tool store (2) which are arranged in a tangential to radial direction.
Patent DE-19710028-A1 (DE)
Title: Monitoring arrangement for magnetic valve
Inventor: SOYCK GERNO
IPC: G01R31/72
Filed: 1997-03-12
Abstract: The arrangement includes a magnetic circuit for determining the flow through of magnetic field sensor (8). The magnetic circuit consists of actuation magnets (1) and a valve arrangement (6). The magnetic valve includes a keeper (3)  which is mechanically connected to a pneumatic or hydraulic globe valve (6,7) and is loaded with a compression spring (4) in the closing direction.  The switch position of the valve is detected by the magnetic field sensor which is arranged at the valve housing. The magnetic field sensor reacts on a change of the magnetic leakage field or the magnetic induction when a position change of the globe valve occurs.
Patent DE-19713335-A1 (DE)
Title: Monorail transportation system
Inventor: FROHNAPFEL FRANZ
IPC: B65G35/06
Filed: 1997-03-29
Abstract: The system comprises a rail (2) which is arranged parallel to a rotatably driven carriage shaft (1). Carrier wagons (5) are arranged on top of the rail, each one having at least one friction wheel (10) which is swivelably positioned on the wagon for assisting a carriage movement about an axis (11) which is radially aligned relative to the carriage shaft. At least a second rail (3) is also provided with further wagons (4), both rails (3,4) being parallel to the carriage shaft. A lever (12) adjusts the friction wheel for a feeding or an emptying position of the wagon.
Patent DE-19715956-A1 (DE)
Inventor: KUNISHIMA TSUTOMU
IPC: H03J3/18
Filed: 1997-04-16
Abstract: An input circuit for a television tuner includes an image-trap circuit in which a series circuit including an image-trap capacitor (11) and a second varactor diode (29) is connected in parallel to a series circuit including a tuning inductor (10) and a first varactor diode (28). A common tuning voltage is applied to the first and second varactor diodes so that their capacitances change, and hence change the resonant frequency and the image-trap frequency together.
Patent DE-19722273-A1 (DE)
Inventor: SCHELLING VOLKER
IPC: C04B41/86
Filed: 1997-05-28
Abstract: The invention relates to coating powders for the electrostatic coating of glass and ceramic or metallic substrates. According to the invention, the required high-specific electric volume resistance to electrostatically coat glass and ceramic or metallic substrates is achieved in the presence of a carboxylic by acid salt in a volume of 0.01 to 1 wt %. The coating powders preferably contain alkali salts, alkaline-earth salts or earth metal salts of carboxylic acids with 2 to 6 C-atoms. The resistance can be increased by 3 to 5 powers of ten. The inventive coating powders are used for glazing, slip painting and decorating glass and ceramic substrates as well as for enamelling metallic substrates.
Patent DE-19724621-A1 (DE)
Title: Heating thermoplastic preforms in a blow moulding machine
Inventor: SAUL HANS-PETER
IPC: B29C49/64
Filed: 1997-06-11
Abstract: In a process for heating thermoplastic preforms in a blow moulding operation the preforms pass radiant heaters whose heat(21) is directed by a primary mirror(19) to a secondary mirror(20) which focusses the heat onto the preform(32). Also claimed is a process equipment including one primary mirror(19) on the opposite side of the heat emitter(17) to a secondary mirror(20) which may comprise several segments.
Patent DE-19725181-A1 (DE)
Inventor: ZETTLER THOMAS DR
IPC: G11C15/00
Filed: 1997-06-13
Abstract: A drive circuit for a non-volatile semiconductor storage configuration. The drive circuit having a level converter circuit which applies an output value and a complementary output value complementary to the output value to a bit line and/or a word line of the semiconductor storage configuration. The drive circuit also has a latch circuit that temporarily stores the data to be stored in the semiconductor storage configuration, and lies between an input circuit and the level converter circuit.
Patent DE-19730368-A1 (DE)
Title: Flip=chart display stand
Inventor: SELKE NORBERT
IPC: G09F7/22
Filed: 1997-07-15
Abstract: The display stand has variable display surfaces on a board (1). The board can be rotated about a vertical axis. The board may be vertical and may be fixed in position. The rotary surface is removable. The display surface of the board varies, take different fixtures for objects such as magnets or pins, and various writing methods. A writing pad can be attached to the top edge of the display stand. The display stand may be rolled on casters (7) and may have wall fixtures.
Patent DE-19732065-A1 (DE)
Inventor: DRECOLL HARM
IPC: G11B11/105
Filed: 1997-07-25
Abstract: The invention relates to a method for inscribing a storage medium (1) with digital data using high-energy radiation (4). The surface of the storage medium (1) can be divided into a plurality of systematically arranged storage locations (8, 9) and one storage location (8, 9) constitutes the smallest storage unit available to the system. The power transmitted onto a storage location (8, 9) by means of the high-energy radiation (4) is varied in more than two discrete power stages.
Patent DE-19732680-A1 (DE)
Title: Multiple contact surfaces wetting device e.g. for ball-grid array housings
Inventor: KERLER RUDOLF
IPC: B05C1/02
Filed: 1997-07-29
Abstract: The device for providing simultaneous wetting of several electric contact surfaces (1) with a liquid (2) comprises a stamp (3) with a knobbed (4) surface made of an elastomer. The number of knobs, their arrangement and dimensions are matched to the contact surfaces to be wetted.  The stamp is made integrally with the knobs, and the wetting liquid is a flow medium. More specifically, the contact surfaces are arranged on a ball-grid array (BGA) housing or on a chip-size package.
Patent DE-19733235-A1 (DE)
Title: Display of alphanumeric tactile information
Inventor: FRICKE JOERG
IPC: G09B21/00
Filed: 1997-08-01
Abstract: The display of alpha numeric information is performed using elements that are of a form that the information can be tactile sensed. The method adopted is to make each alpha numeric element identified by a vibration that is specific in relation to three parameters,namely, the amplitude,frequency and phase. These are dependent upon the rate the finger is moved horizontally and the direction of movement.