baber/WOPTO huggingface dataset:
Patent DE-4109146-A1 (DE)
Title: Multi-stage transistor driver circuit - has cross-connected locking signals between initial stages preventing simultaneous conduction of both end stage transistors
Inventor: MATTAUSCH HANS JUERGEN DR RER
IPC: H03K19/00
Filed: 1991-03-20
Abstract: The driver circuit has a complementary MOSFET end stage (EPN) and 2 preceding stages (NV,PV), each comprising a series circuit with a logic gate (3,7), a signal delay (V1,V2) and a driver (IT1,IT2). Each of the preceding stages (NV,PV) has a locking input (VE1,VE2) coupled to a locking output (VA2,VA1) of the other stage (PV,NV), for preventing simultaneous conduction of both MOSFET transistors (P,N) within the end stage (EPN). Pref. each driver (IT1,IT2) is formed by an odd number of individual inverting drivers. USE/ADVANTAGE - Driven circuit of min. complexity.
Patent DE-4114006-A1 (DE)
Inventor: DITTES WALTER DIPL ING
IPC: G01N33/00
Filed: 1991-04-29
Abstract: For the measurement of the oxygen content of gases use is often made of measuring cells which no longer ensure reproducible oxygen measurement if the gas to be measured contains carbon dioxide. Attention must therefore be paid to avoiding exposing the measuring cell to the gas for too long and regenerating it for a long enough period after carbon dioxide has been applied to it. It is therefore proposed to measure the carbon dioxide content of the gas to be measured and obtain a sum value (S) by integration. If the measuring cell is exposed to pure air, the sum value is reduced in accordance with the regeneration of the cell. The sum value is therefore a measure of the state of the measuring cell. Only once it is lower than a predetermined limit is the measuring cell released for a measurement. The invention is used to measure the oxygen content of automobile exhaust gases.
Patent DE-4114199-A1 (DE)
Title: Temp. or humidity change monitor - holds butting ends of two optical fibres in device sensitive to temp. or humidity change and measures movements between those ends
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/26
Filed: 1991-04-30
Abstract: A device to monitor temp. and/or humidity uses two optical fibres aligned together at their butt joint and a member which moves and thereby effects at least one of them; the butt join is bridged by a component with high thermal expansion and/or sensitivity to humidity; this component is fixed to the two fibres; the two fibres are held closely at their join inside a short guide in which one of the fibres can move longitudinally. When the device is used to detect temp. changes this bridging component is pref. made of low density, high density or ultra-high mol.wt. polyethylene or polycarbonate; if for humidity tests however it is pref. made of polyamide, wood or paperboard. ADVANTAGE - The device is simple at the join area.
Patent DE-4117865-A1 (DE)
Title: Optical device for optical communications switch, multiplexer - has currents in laser cavity zones ensuring coherent light emission
Inventor: SCHILLING MICHAEL DIPL PHYS
IPC: H01S5/06
Filed: 1991-05-31
Abstract: The optical device has a semiconductor laser (1) integrated in a substrate (2) with a laser cavity (41) having a branched structure with a number of associated zones (8...11) in which a current flows between two opposing metal layers (7,12) applied to the top surface of the zone (8...11) and the underside of the substrate (2), ensuring emission of coherent light. A second semiconductor laser (14) acts as a light source with a variable light output, for supplying light signals to the laser cavity (41) of the first semiconductor laser (1). The second laser (14) may be separate, or integrated in the same semiconductor substrate (2). USE - For use as optical switch, or as multiplexer or demultiplexer.
Patent DE-4120842-A1 (DE)
Title: Recovery of mixed granular plastics and metals scrap - by combustion sepn. process causing reduced formation of toxic organic cpds.
Inventor: HARTMANN HELMUT DR
IPC: B03B9/04
Filed: 1991-06-25
Abstract: Incinerator residues contg a proportion of toxic organic chemicals are sepd., before leaving the combustion atmos.  into a coarse granular fraction and a fines fraction, which are respectively predominantly 'inert' and organic based materials. The coarse fraction is rapidly cooled after removing from the combustion atmos.; the fine fraction is slowly cooled before it leaves the  combustion atmos. The two prod. streams are thereafter sepd. further into sub-components which are non-toxic, and can be reused for environmentally acceptable purposes. It is stated that harmful chemicals e.g. chlorinated dioxins and furanes can be formed through sec. recombination reactions, at temps. of 150-400 deg.C., partic in oxidising conditions. The invention seeks to avoid these conditions by shock cooling the coarse fraction from a temp. of the order of 600 deg.C to less than 100 deg. C in a few seconds (e.g. by water spraying); whilst the fines are cooled in the reduced O2 atmos.  from the pyrolysis process. Sepn processes may involve sieving, magnetic induction in a fluidised bed, and finally flotation. Less than 5% of organic material is the inert/metaliferous coarse fraction is sought. USE - Sepn of organic and inorganic components in total attrition schemes for recovery of metals and organic feedstocks/fuels from scrap e.g. automobiles and white goods.
Patent DE-4123296-A1 (DE)
Inventor: SCHMID KARL
IPC: B05B14/462
Filed: 1991-07-13
Abstract: A system for the separation and recovery of water dilutable paints from spray booths provides, in terms of the process and installation, a wet-separation of the paint mists from the booth air and circulation of the paint/water mixture produced for the purpose of thickening this, via, for example, an ultrafiltration unit, deionised water being used as a circulation and trickling liquid of the booth system. <IMAGE>
Patent DE-4124119-A1 (DE)
Title: High purity, finely dispersed aluminium nitride powder prodn. - by mixing aluminium salt soln. with sodium carboxymethyl:cellulose soln. calcining the easily filtered prod., nitriding and igniting
Inventor: IRMISCH REINER DR
IPC: C04B35/581
Filed: 1991-07-18
Abstract: The prodn. involved the reaction of a homogeneous mixt. of Al203 powder and C (II) in a N2-contg. atmos., followed by pyrolysis to remove excess C. The reaction mixt. is prepd. by mixing aq. Al salt soln. with aq. Na carboxymethylcellulose (Na-CMC) soln. at pH 3-8, filtering off the sparingly soluble ppte. of Al cellulose-glycolate, washing, drying and calcining at 200-350 deg.C. then nitriding and igniting by known methods. Pref., the pH is adjusted by addn. of ammonia. USE/ADVANTAGE - (I) is useful for the prodn. of sintered polycrystalline ceramics with high thermal conductivity, for use as dielectrical insulators, high temp. dielectrics and substrates for high performance electronic circuits, etc.. The invention provides a simplified process for the prodn. of mixt. (II) in the form of very pure, highly reactive powder which is more suitable for nitriding than prior art mixts. (which require long mixing times and subsequent grinding operations)
Patent DE-4129005-A1 (DE)
Inventor: WEBER ALFRED DR
IPC: C12P33/06
Filed: 1991-08-28
Abstract: Described is a method of preparing 14 alpha -hydroxy-4-androstene-3,17-dione with a culture of Curvularia lunata. The method is characterized in that 4-androstene-3,17-dione is suspended in water and the suspension thus obtained fermented.
Patent DE-4129214-A1 (DE)
Title: Artificial stone paving blocks -  are subjected to ageing process and are made of sand and cement with colouring agent
IPC: E01C5/06
Filed: 1991-09-03
Abstract: Artificial stone paving blocks (10) have an upper surface (12) which is broken by artificial cracks. Each block is about 0.02 square metre or smaller is size. The blocks (10) have undergone an artificial ageing process to give them broken and rough surfaces, and are generally cubical with a dimension of between four and sixteen centimetres. They are made of sand and cement with a colouring agent. USE/ADVANTAGE - Artificial stone paving blocks have many of the properties of natural stone and are easily and quickly mfd.
Patent DE-4131533-A1 (DE)
Title: Steering angle sensor for motor vehicle - contains rotary resistance track with sliding contact and mounted on carrier with adjacent voltage supply track
Inventor: KUTSCHE THOMAS DIPL ING
IPC: G01B7/30
Filed: 1991-09-21
Abstract: The steering angle sensor is in the form of a rotary resistance with a resistive path (66) and a slip contact (68) which moves relative to the resistive path according to the rotation of the steering column (16). The resistive path is arranged near the steering wheel (22) and concentrically about the steering column. A supply voltage contact track (34) for the horn switch (14) is arranged on a carrier adjacent to the resistive track. USE/ADVANTAGE - Does not require special installation space and is simply coupled to steering column rotation.
Patent DE-4141043-A1 (DE)
Title: Device for pivotal fixing of trailing implement for disc harrow - includes connecting arms which swivel on vertical pivot and can be locked in line or at angle
Inventor: BRIX WILHELM CHRISTIAN
IPC: A01B49/02
Filed: 1991-12-13
Abstract: A device for pivotal fixing of a trailing implement for a disc harrow with connecting arms (10). The arms (10) pivot on a vertical pin (12) and can be locked in a straight line by a pin through a hole (32) and through the arm (10), and it can also be locked in an angled position by a pin through a hole (30) in an attached bracket and through the arm (10). USE/ADVANTAGE - Simple, reliable and very robust.
Patent DE-4141614-A1 (DE)
Title: Angularly adjustable guide for powered circular hand-saw - consists of a baseplate with turntable carrying height adjustable guide and support rails for saw
Inventor: NEUMANN RITA
IPC: B23Q9/00
Filed: 1991-12-17
Abstract: The guide for a powered circular handsaw has a baseplate (1) in which is mounted a supporting turntable (2) with a locking screw (9). Fastened to the turntable on height adjustable pillars (4,5) is an L-section guide rail (3) against which the saw is guided. Alongside the guide rail on height adjustable pillars (7,8) is a second flat rail (6) which prevents the saw from tipping over. Running across the baseplate and turntable is an adjustable straight edge which acts as a stop for the workpiece. USE/ADVANTAGE - Simple accessory for powered circular hand-saw is adjustable in angle and usable as guide.
Patent DE-4203587-A1 (DE)
Title: Quantitative spectral analytical processes - e.g. for analysing exhaust gas from methanol-driven automobile
Inventor: ADACHI MASAYUKI
IPC: G01J3/28
Filed: 1992-02-07
Abstract: In quantitative spectral analytical processes in which sample constituent concns. are determined from the absorption at several fixed wave number points in the absorption sepctrum, (a) the concns. are calculated using a concn. determination matrix previously derived from a combination of reference spectra for constituents of known concns.; (b) the sample constituents are subdivided into several groups, and then frequency bands, used for spectrometric analysis of the respective gps, are subdivided into blocks for each gp.; (c) suitable gps. of constituents are established for several sample types for prescribing gps. of wave number points for the corresp. concn. calculations and one wave number point gp. is selected for calculation of the constituent concns. in a respective sample; or (d) suitable gps. of constituents and concn. ranges are established for several sample types for prescribing groups of wave number points for calculating the concns. of these combinations and then one wave number point gp. is selected for calculation of the constituent concns. in a respective sample. USE/ADVANTAGE - The processes are useful for determining concns. of gases etc. using a Fourier transformation IR spectrometer, e.g. for analysing exhaust gas from a methanol- driven automobile. Several constituents can be determined simply and accurately in several sample types using only a small concn. calculation matrix.
Patent DE-4204590-A1 (DE)
Title: Biological sewage cleaning process - has smaller contact basin to feed sewage at high pump speeds into aeration basin for small plants
IPC: C02F3/12
Filed: 1992-02-15
Abstract: The biological sewage cleaning process, using an aeration basin, has a contact basin in front of the aeration basin, continuously fed with mechanically precleaned sewage. The contact basin, with a vol. less than 20% of the aeration basin, gives a partial denitrification to the sewage under anoxic conditions and back feed of water and sludge rich in nitrates. The pretreated sewage is fed into the aeration basin with high pump speeds, for carbon decomposition and the nitrification/denitrification reactions. Pref. the basin is aerated intermittently, with aeration times of more than 10 mins./hr., or 20 mins./hr. The aeration time intervals are set according to the amount of sewage fed to the basin. The high pumping speeds give a mechanical breaking-down action on the size of the flocking material passed into the basin, to increase the surface areas of the material within the aeration basin to increase processing speed. USE/ADVANTAGE - For the removal of nitrogen from the waste material. It has an effective action, in small sewage disposal plants, occupying little space and with low energy consumption, to give an improved sludge quality.
Patent DE-4207435-A1 (DE)
Title: Topography simulation for semiconductor reflux processes - indicating potential of cells based upon vol. and surface growth ratio
Inventor: FUJINAGA MASATO
IPC: G06F17/50
Filed: 1992-03-09
Abstract: Specifically the topography of a borphosphorsilicate, BPSG, (1) glass is described by wire segments (2). When raised to more than 600 deg. Celsius the material becomes fluid. The chemical potential of the cell is described by the ratio of volume growth in comparison with the surface growth. The movement of the iso concn. surface is described in terms of the chemical potential simulation. USE/ADVANTAGE - Simulates characteristic of Iso concn. in semiconductor mfg. industry.
Patent DE-4208101-A1 (DE)
Title: Satellite aerial with parabolic dish - has surface covered with solar cell elements maintaining charge of battery supplying receiver circuit.
Inventor: SPILLE JENS DIPL ING
IPC: H02S40/38
Filed: 1992-03-13
Abstract: The parabolic reflector forming part of a satellite station receiver has a surface that is covered with photovoltaic elements e.g. solar cells. The energy from the cells is used to maintain the charge in a battery power pack. The cells are produced from iron and magnetic free material. The electrical energy is used to supply the elements of a receiver such as a polarising element, low noise amplifier, converter and coaxial switches. USE/ADVANTAGE - Reception interference avoided. Environmentally friendly power source. Low cost.
Patent DE-4211622-A1 (DE)
Inventor: SCHLICHENMAIER ANDREAS DIPL IN
IPC: G01P21/02
Filed: 1992-04-07
Abstract: Described is a method of monitoring inductive rpm sensors. The invention is based on a prior art method in which line break and short circuit are detected with respect to the supply line. This prior art method is slightly improved so that short circuits between two rpm sensors or their input lines can be detected.
Patent DE-4215217-A1 (DE)
Title: Rubber and metal seal mfr. - by surface coating of metal plate with elastomer and removal of material outside immediate area around fluid holes
Inventor: KLEIN BERNHARD DIPL ING
IPC: F16J15/12
Filed: 1992-05-09
Abstract: In a process for mfg. rubber and metal seals (1) the metal plate (6) is coated on one or both sides with an elastomer which is then bonded or vulcanized onto the plate (6). All the elastomer is then removed except for the areas around the holes (4,5) which forms a seal in these areas. USE/ADVANTAGE - The process produces an economic seal with improved quality and is suitable for short prodn. runs.
Patent DE-4215655-A1 (DE)
Title: Two=part telephone handset - has electroacoustic transformer connected to casing via intermediate high resistance fluid such as oil
Inventor: ANDERT THOMAS JAN DR ING
IPC: H04M1/20
Filed: 1992-05-13
Abstract: The handset (1) has upper (2) and lower (3) casing parts connected to each other by screws or fasteners. An electro-acoustic transducer (5) is arranged inside the handset (1). One casing part (3) has an earpiece with sound outlet apertures (4). A highly resistive fluid (6) is inserted between the sound outlet region (4) of the casing (3) and the part of the transducer (5) adjacent the outlets (4). This fluid (6) may be thick oil or vaseline (RTM). ADVANTAGE - Simple way to prevent undesirable vibration between transducer and casing at low cost.
Patent DE-4220138-A1 (DE)
Title: Suspension for slatted bed frame carrying mattress or futon - has four longitudinal fluid-filled tubes below slatted frame, with inner tubes providing support for half length only
Inventor: MARGRAF ADOLF DIPL ING
IPC: A47C23/06
Filed: 1992-06-19
Abstract: The suspension consists of four deformable fluid-filled tubes (1,2). The total bearing area of the tubes that is effectively supporting the frame is proportional to the longitudinal weight distribution of the person resting on the mattress. This area is subdivided into a larger area for the upper part of the body and a smaller area for the legs. The two outer tubes are full length and the two inner ones are about 1.1 metres from the head of the bed. Alternatively, the two inner tubes may be as long as the outer tubes but by bending downwards at their far ends, only provide support for the first 1.1 metres from the head of the bed. Fluid pressure in the tubes is monitored by a pressure sensor (20) and adjusted by the person, esp. at night time, via a remote control unit activating respective solenoid valves (16a,16b,17,19) and a pump (18). ADVANTAGE - Provides support over whole body contour, especially lumbar region, without undue bending of legs.
Patent DE-4222296-A1 (DE)
Title: Dental implant - comprises re:absorbent or non-re:absorbent foil material with living cells of binding tissue type and desmodont character
Inventor: SCHENDEL KLAUS URSUS DR DR
IPC: A61K6/00
Filed: 1992-06-17
Abstract: The implant is provided with osteogen proteins or other stimulants for bone growth. It consists of reabsorbable or non-reabsorbable foil material on which before the implantation artificially increased, binder tissue-type living cells are applied which have desmodont character or are suitable for acquiring it. The cells are fixed to the foil material with the aid of so-called plasma clot or another protein-contg. substance. The cells and the plasma clot are mixed, and the mixt. is applied to the foil material. USE - A dental implant.
Patent DE-4235822-A1 (DE)
Title: Electromagnetic valve for brake control systems - has coil of at least two plastics layers with different properties to give improved form stability
Inventor: NAKAMURA HIROTAKA
IPC: B60T13/58
Filed: 1992-10-23
Abstract: An electromagnetic valve with an outer yoke (105) contg. a magnetiser (20) has a coil device (3) which is of at least two layers of plastics with different properties. Pref. the inner layer (120) is of a resin with a higher expansion rate than the resin of the outer layer (125), pref. such that the outer layer (125) resin is of higher dimensional stability than the inner layer (120) resin. USE/ADVANTAGE - The valve is used in controlling compressed air braking systems in vehicles and, on account of using at least 2 different plastics for the coil. (3), has good heat, weather- and water-stability as well as good form stability when compared to prior-art devices using epoxy resin only for the coil (3).
Patent DE-4236505-A1 (DE)
Title: Valve block for slip-regulated vehicle braking system - with additional brake pressure regulator for rear brakes with pressure reduction valve and electromagnetic blocking device
Inventor: VOLZ PETER DR
IPC: B60T15/02
Filed: 1992-10-29
Abstract: The valve block has electromagnetically operated regulating valves for reducing the applied braking pressure for the front and rear brakes, the rear braking circuit employing a brake pressure regulator with a pressure reduction valve (10) and an electromagnetically-operated blocking device (8). The pressure reduction valve has a stepped regulating piston (38) with a valve seat (40) cooperating with the valve element (24) when the pressure provided by one or more plate springs (36) is exceeded, the valve element released via the operating electromagnet (12, 20). ADVANTAGE - Simple incorporation of additional brake pressure regulator.
Patent DE-4238122-A1 (DE)
Title: Process for disposing of cartridge munitions - by dismantling, melting and purification of waste cases
Inventor: HASFURTHER RAINER
IPC: B09B3/00
Filed: 1992-11-12
Abstract: Cartridge munition with a calibre up to 40mm, having Cu alloy case is disposed of by withdrawing the shell from the case, removing the propellant from the case and decomposing it in a combustion furnace, liberated gases passing to a purification unit. The shell is melted down and the explosive is thermally decomposed, gases passing to the purification unit. Fe-base cased munitions are melted down complete. USE/ADVANTAGE - High throughput, environmentally acceptable.
Patent DE-4238250-A1 (DE)
Inventor: BERGER JOHANN
IPC: D04B25/08
Filed: 1992-11-12
Abstract: A device on a warp knitting machine for crocheting an elastic band with a coating and an elastic band made with this device. The band may also have picots at its edges, that is small loops. The device is intended to facilitate the production of very fine bands with a distribution of more than eight and especially twelve needles per centimetre of machine width and even more if possible. The coating should be patternable. The coating may be produced on only one or on both sides of the strip. The device has crochet hooks (4), a cuttler (80) to feed skeins of rubber-elastic threads (14) and a cuttler (20) to feed skeins of warp threads (22). In front of the rubber-elastic threads there is a front single-weft cuttler (30v) to feed a front weft yarn (32v). A rear single-weft cuttler (30h) may be arranged behind the rubber-elastic threads. There are more than eight and especially twelve crocheting components per centimetre machine width to produce a particularly fine band. To produce a coating there is a weft-skein cuttler (50v, 50h) with sets of weft yarn eyed needles (52v, 52h) in front of and/or behind the rubber-elastic band (14).
Patent DE-4241642-A1 (DE)
Title: Wallet for cards, esp. cheque cards - has three rigid plastics sheets forming two pockets welded along edges, with insertion openings, and clamping ends
Inventor: MAIER-HUNKE HORST-WERNER
IPC: A45C11/18
Filed: 1992-12-02
Abstract: The partition between the two pockets (4,5) consists of a rigid piece of plastics (2) in which are at least two semicircular, semi-conical or wedge-shaped recesses (15,16) on each side of the wallet lengthwise axis. The recesses cross-section increases to the pockets ends facing the insertion openings (10,11). At least one of the recesses protrudes into one of the pockets. The recesses are shorter than a quarter of the wallet length and are nearer to the wallet lengthwise axis than to the wallet lengthwise edges. Each pocket has a window. USE/ADVANTAGE - The cheque-card wallet is easily produced and handled by incorporating recesses.