baber/WOPTO huggingface dataset:
Patent DE-4024526-A1 (DE)
Title: Metal oxide semiconductor-controlled high performance thyristor - can be switched on and off by MOS transistor uses self-aligning process with fewer masks
Inventor: BAUER FRIEDHELM DR
IPC: H01L29/747
Filed: 1990-08-02
Abstract: Device construction is as follows: in a semiconductor substrate (1) between a metallised anode-(A) and a cathode-contact (K) unit cells of the type Z1 and Z2 are alternatingly and interconnected in parallel. The cell type Z1 has a basic thyristor structure with an anode contact (14), emitter (10) and a base-layer (9) which is common to all cells. In the base-layer (9) a first base-region (16) is formed and inside this a first emitter-region (15) which is connected to the cathode contact (2). The other cell type (Z2) comprises emitter (10), base-region (9) and a diffused contact region (17) of opposite type from the base (9). (A gate-electrode (4) bridges) distance between the first emitter (15) base-region (16) and the contact region (17) on an insulated. layer on the surface of the base-region (9). USE/ADVANTAGE: Esp used as high performance thyristors and are mfd by a process using many fewer masking stages, i.e. 7 instead of 11 in current devices. This results in improved yield. The process also provides self-alignment, resulting in improved control of parameters and making the process easier.  The thyristor is switched off by a negative bias on the gate electrode which shunts the current through the base (16) into the contact region (17). It is switched on by a positive bias on the gate electrode which shunts a current of electrons into the base region (9).
Patent DE-4027238-A1 (DE)
Title: Selective removal of (in)organic sulphur cpds. from gases - by scrubbing with nitrogen-contg. heterocyclic solvent with substd. alkyl gps. and/or ketone gps.
Inventor: LANDECK HEINER DIPL PHYS DR RE
IPC: C10K1/14
Filed: 1990-08-29
Abstract: Selective removal of inorganic and/or organic S cpds., e.g. H2S, COS, CS2 and mercaptans from gases contg. H2, N2, Ar, CO2, CO and/or aliphatic hydrocarbons is effected by scrubbing with a physical solvent comprising a heterocyclic cpd. (I) with 5 or more ring members, including two N atoms that are double-bonded and/or single-bonded and substd. by an organic gp., provided that the ring has at least as many N- or C-bonded non-alkyl substits. or as many oxo substits. as there are single-bonded N atoms, where the non-alkyl substits. are selected from dialkylaminoalkyl, alkanoylalkyl, alkoxyalkyl, dialkylcarbamoylalkyl, dialkylpolyaminoalkyl, polyalkoxyalkyl and dialkylaminopolyalkoxyalkyl gps. (I) is 1-dimethylaminopropyl-imidazole, 1-methyl-4-dimethylaminoeth yl-2-piperazinone or 1,4-di(dimethylaminoethyl)-2-piperazinone. ADVANTAGE - Cpds. (I) have a greater H2S/CO2 selectivity than conventional solvents such as N-methylpyrrolidone and polyethylene glycol dialkyl ethers. (13pp Dwg.No.0/1)
Patent DE-4027999-A1 (DE)
Title: Forming ceramic film or layer on surface of substrate - by spark discharge in electrolytic bath contg. aq. soln. of water soluble silicate dispersed in fine ceramic particles
Inventor: HANAGATA HARUO
IPC: C25D9/06
Filed: 1990-09-04
Abstract: Formation of ceramic film or layer (I) on the surface of a substrate (II) by spark discharge (III) is carried out in an electrolytic bath, which contains an aq. soln. of a water-sol. or colloidal silicate (IV) and/or an hydroxy acid salt (V) dispersed in fine ceramic particles. The suspended state of the ceramic particles is guaranteed in the electrolytic bath. A similar process of forming a ceramic film or layer on the surface of a substrate as above is also claimed, but the aq. soln. is now dispersed in fine particles contg. molybdenum disulphide, carbon, fluorided graphite and tetrafluoroethylene resin.
Patent DE-4031694-A1 (DE)
Title: Hot melt adhesives prodn. with increased strength - by reacting part hydrolysed ethylene¨ vinyl¨ acetate copolymer with cycloaliphatic di:acidanhydride¨, for plastics
Inventor: HOFFMANN HORST DIPL CHEM DR
IPC: C08F8/46
Filed: 1990-10-04
Abstract: Prodn. of (I) comprising EVA copolymer component (II), 20-40 pts. wt. tackifying resins and opt. up to 30 pts. wt. fillers, up to 15 pts. wt. waxes and opt. 0.1-2 pts. wt. antioxidants, which are mixed together at 393-453 K; comprises mfg. (II) in one stage at the beginning of the process, by reaction of 35-60 pts. wt. partially-hydrolysed EVA copolymer with vinyl acetate (VAC) content 10-30 wt.%, vinyl alcohol (VAL) content 3-15 wt.% and MFI= 15-100 g/10 mins. (at 463 K) (III) with 5-25 pts. wt. cycloaliphatic dicarboxylic anhydride (IV), other components are added together and the mixt. is homogenised by stirring, kneading or extrusion. Pref., (IV) is cis-hexahydro phthalic anhydride (IVA). USE/ADVANTAGE - Improved adhesive strength (tensile shear strength) and thermal stability; (I) are useful for bonding the above substrates, e.g. in furniture- or polygraphic-industry, packaging and assembly bonding. (0/0)
Patent DE-4034691-A1 (DE)
Title: Copier with economy or speed print selection modes - has control unit to facilitate rewinding of photosensitive copy medium
Inventor: KIMURA HIROAKI
IPC: G03B27/58
Filed: 1990-10-31
Abstract: During continuous printing, the copy medium (13) passes across the light aperture (7a) coming into physical contact with a copy sheet (17) before being guided through a developing unit (19). On leaving the developing unit (19) a separating capstan (22) guides the copy medium (13) to a take-up reel (15) and the copy sheet (17) through a heat fixing unit (23) to be collected at the output. Should a subsequent copy process be immediately set in motion a section of the copy medium (13A to B) would be effectively wasted. - In the economy mode a control unit facilitates rewinding of the copy medium (13) to a predetermined position between successive print operations in order to prevent waste of unused copy medium (13).
Patent DE-4040010-A1 (DE)
Title: Feeding electric power to power storage current generator - has magnetic clutch, whose side, away from flywheel, can be secured against rotation
Inventor: STUKENBROCK HEINER
IPC: H02J15/00
Filed: 1990-12-14
Abstract: The magnetic clutch of a current generator has a flywheel rotating inside a casing, whcih can be locked in position or free to rotate. The flywheel carries excitation magnets and the casing carries windings. If the casing is free to rotate, it will rotate by eddy current action with suitable control of the magnet excitation and thus store inertia energy. On the other hand, if the casing is locked in position, with suitable control of the flywheel magnets, electric current can be generated, as the generator rotor rotates with the flywheel. Appropriate switches complete the assembly. ADVANTAGE - Versatile application.
Patent DE-4040432-A1 (DE)
Title: Plastic moulding materials useful esp. for building applications - contain 30 wt. per cent curable liq. synthetic resin and 70 wt. per cent spherical, high-strength, porous fillers with graduated grain size
IPC: C08K7/22
Filed: 1990-12-18
Abstract: Moulding materials consisting of plastic and auxiliary materials are claimed. (I) esp. for building applications and for the prodn. of insulating layers and pressure-proof and heat-insulating coatings and components. (I) contain about 30 wt.% curable liq. plastic with dynamic viscosity 500-1000 mPa.s (II) and about 70 wt.% spherical, inherently porous, high-strength fillers with graduated particle size from 0-3 mm. and a pore content of about 30 vol.% (III). (II) is low-mol. wt. epoxy resin, crosslinked with polyamine, (III) consists of at least partly hollow, approx. spherical inorganic particles (IIIA) pref. glass spheres with dia. 0.05-0.15 mm. and hollow spheres of earth metal silicates esp. Al silicate and/or earth metal oxides, esp. corundum with dia. 0.08-3.0 mm. and spherical particles of organic materials (IIIB) pref. expanded phenolic resin with a closed surface and dia. 0.005-0.25 mm. (I) also contains colour pigments, pref. compsn. is 55-60 wt.% expanded (hollow spherical) earth metal silicates and/or oxides, 5-10 wt.% hollow spheres of phenolic resin, 4-7 wt.% solid glass spheres, 23-25 wt.% Bisphenol AF resin with reactive diluent, 6-7 wt.% polyamine hardener and 0.3-1.0 wt.% colour pigments, pref. the filler granules are graded to give the highest possible layer density. USE/ADVANTAGE - Moulding materials with a combination of high strength (compressive, flexural/tensile, shear strength) and high thermal insulation capacity are obtd. which can be used with other high-strength building materials to give very homogeneous components etc. with uniform load bearing properties
Patent DE-4042066-A1 (DE)
Title: Appts. for measuring liq. level in container - comprising thermocouple element sensor, used in vehicle fuel tank
Inventor: SCHAEFER HORST
IPC: G01F23/22
Filed: 1990-12-28
Abstract: An appts. (10) for measuring the fill level (16) of a liq. (15) in a container (11) comprises a number of thermocouple elements (30) as sensors having two connection points (32, 33) between two different materials (34, 40). The elements are applied on the front side (28) of an electrically insulating, blade carrier (27) and are arranged at different heights in the inside of the container. On the reverse (29) of the carrier (27), an electrical heat conductor (26) is arranged in the region of the thermocouple elements. The novelty is that the thermocouple element is made of a semiconductor rod, e.g., of Si-, Ge-, or Ga-arsenide rod, with a metallic coating (40) and in the transition zone, an intermetallic layer (41) of metal silicide. The connection and the measuring lines (35, 36) are produced by linear pressing of the front side of the carrier with a metal-conducting adhesive (42, 43). The rod (30), with its metal-coated ends (32, 33) is pressed on the connection zones of the measuring- and connection- lines into the still moist layer of the metal-conducting adhesive and contacted with it. USE/ADVANTAGE - The electrical signal, which is produced, can be directly used to determine the liq. state in an evaluation appts..
Patent DE-4103785-A1 (DE)
Title: Switchgear cabinet with edge connectors for door frame - is preassembled from tubular profiles with holes for bolts on inside of door, working through slotted projections
IPC: H02B1/38
Filed: 1991-02-08
Abstract: On the inside of the door (10) a frame is assembled from four hollow tubular profiles (e.g. 21, 22) of square section joined together at the corners by identical edge connectors (25). Each connector has two tapered projections (26, 30) at right angles with longitudinal slots (27, 31). Threaded bolts (36) extend from the door 910), through the slots (27, 31) and corresp. holes (34, 35) in the profiles (21, etc), into guidance sleeves (39) formed integrally with their nuts (38). A washer (37) is inserted between each bolt (36) and sleeve (39). ADVANTAGE - Frame can be preassembled for easier attachment to door, against which close fit is guaranteed.
Patent DE-4105073-A1 (DE)
Title: Device to clean process air - by condensing and accelerating air using filter so only process air changes direction, and impurities are cooled and condensed
Inventor: GERLACH JUERGEN
IPC: B01D50/00
Filed: 1991-02-19
Abstract: Gaseous impurities borne in the process air are first condensed and then jointly accelerated so that only the process air changes direction. Impurities are cooled with spray and then condensed. USE/ADVANTAGE - Process and assembly facilitate the complete removal of harmful vapours e.g. oil residues by filter from process air at low cost.
Patent DE-4107903-A1 (DE)
Inventor: GEERS WOLFGANG
IPC: H04R25/00
Filed: 1991-03-12
Abstract: A method for optimising the fitting of hearing aids is described in which, to select the presetting of the respective hearing aid, representative sound events in the form of standard hearing situations, and accordingly the subsequent preferred carrying environment, are taken into account.
Patent DE-4108615-A1 (DE)
Title: Air-humidifying for large areas - sprays water via blades of air humidifiers, generating air stream in rising direction
Inventor: ELSBETT LUDWIG ING GRAD
IPC: F24F5/00
Filed: 1991-03-17
Abstract: The air humidifying system alters the climate in large areas and has a series of air humidifiers with rotary fans. The latter generate a rising air stream, while water is pumped into their blades and sprayed from the latter into the rising air stream. The water outlets are pref. situated only in the outer parts of the blades, and the water can be discharged upwards from them and against the direction of their rotation. ADVANTAGE - Climatic improvement.
Patent DE-4108637-A1 (DE)
Title: Chair or recliner fitment - consists of baseplate with pivot lever, joined to toggle lever, with accumulator
IPC: A47C20/04
Filed: 1991-03-16
Abstract: The fitment for a chair or recliner consists of a base-plate (i) fixed to the side of the frame and on which is pivot mounted a pivot lever (3) linked to a moable frame-part (2). The pivot lever (3) is joined by means of a toggle-lever (4, 5) to the base plate (1) between which and the toggle-lever's (4, 5) one lever is an accumulator (7). The link-bolt (8) on the base plate (1) runs along a curved track by means of a forced control (9). Fixed points (17, 18) on the accumulator (7) lock the foced control (9). USE/ADVANTAGE - The accumulator can be incorporated in an untightened conditions.
Patent DE-4108653-A1 (DE)
Title: Process to separate compressed gases of different molecular weight - using the reverse of mass density in comparison to fluid
Inventor: LENTZ HARRO PROF DR
IPC: B01D53/00
Filed: 1991-03-16
Abstract: In a process to separate gases of different molecular weight, the pressure is raised to a point that the gas with the greater mol. wt. has a greater mass density than a fluid such as water, which is likewise contained within the separation apparatus; that the heavier gas forms a super-saturation of the gas, and that the heavy gas separates downwards in the apparatus. USE/ADVANTAGE - The process exploits the barotropic effect to separate glass of different molecular weight
Patent DE-4112472-A1 (DE)
Title: Toll system for road vehicles - obtains individual data by monitoring speed of vehicle and compares with set limits to apply addition charges
Inventor: WIECHMANN MANFRED DIPL ING
IPC: G07B15/06
Filed: 1991-04-17
Abstract: The speed of each vehicle is monitored as it passes through a specific section. The measured speed values are compared with upper and lower limit values and, if outside the limits, the toll duty is increased. Measured values and toll duty increases are signalled to the toll payment station and increases are automatically entered onto the ticket. Increases in the charge for being below the limit are made on the basis of vehicles travelling too slow in the outer lanes of a road. ADVANTAGE - Stronger enforcement of speed limits.
Patent DE-4117797-A1 (DE)
Title: Low energy recycling of clean thermoplastic scrap - uses cold compression tool with plate having heated spikes for local fusing of polymer
Inventor: GOETTERT THOMAS
IPC: B29C43/14
Filed: 1991-05-30
Abstract: Scrap plastic in a hygenically safe condition is cold pressed into a slab and fused together by a tool with heated spikes. Several slabs can be processed one after the other with a sepg. film between. Clean plastic waste e.g. cups, beakers etc. is pref. placed in a cold tool and a metal plate with heated spikes is lowered onto the scrap to press it to a desired thickness. The spikes are heated to a temp. corresp. to the highest m.pt. among the various polymers and locally fuses the scrap together. USE/ADVANTAGE - The process recycles unsorted thermoplastic scrap into slabs using low energy levels. The unsorted scrap is converted using little energy and without expensive extrusion.
Patent DE-4126146-A1 (DE)
Inventor: BRUEGGENDICK HERMANN DIPL ING
IPC: B01D53/08
Filed: 1991-08-07
Abstract: The fluidised bed reactor takes the form of a transverse-flow adsorber. Its bed (3) is sub-divided by at least one vertical, fluid-permeable wall. On the inflow side, the dividing wall takes the form of a slotted hole screen (13) with slot limiting components (13a) running from top to bottom. The slotted hole screen is connected to a stabilisation grid (14) having connecting pins (15) running transversely to the slot limiting components and strip sections (16) crossing said pins. The slats (20) of a Venetian blind structure are arranged in descending array on the outflow side. The vertical division by the wall does not adversely affect the uniform flow of the fluid through the bed body; it does, however, ensure a reliable sub-division of the reactor bed into two vertical layers which can be emptied and disposed of mutually independently. A similar split floor arrangement also acts as an outlet wall of the reactor, whereby the outlet slats (10), otherwise than the steeply down-sloping inclination of the slats (20) on the outflow side of the dividing wall, have a steeply rising inclination on the fluid outlet side.
Patent DE-4131772-A1 (DE)
Title: Rainwater gulley incorporating an electric heating element - an electric heating element prevents the water surface from freezing over thus reducing or preventing the run off of water
Inventor: TOTH ZOLTAN DIPL ING
IPC: E04D13/04
Filed: 1991-09-24
Abstract: The rainwater gulley is inset into the ground and is covered by a grid (5) an collecting space is located under the grid. The heating element (7) is located circumferentially around the head of the exit pipe (3) and is insulated by a boundary layer (6) from the surroundings and is electrically (11) connected. USE/ADVANTAGE - Prevents icing up of rainwater drainage gulley.
Patent DE-4132406-A1 (DE)
Title: Reference electrode for electrochemical detector - has liq. flow capillary connected by cellulose acetate diaphragm to internal electrode soln., for stable potential
Inventor: MATTUSCH JUERGEN
IPC: G01N27/30
Filed: 1991-09-26
Abstract: Electrode has a capillary (4) for liq. passage, formed in a cylindrical body (5) which has a central bore (6) and an outer vertical groove (7) and which is inserted in a cylinder (8) with a central bore at the end face (9). A diaphragm (1) is between the faces of the two bodies (5,8) for ionic contact between the passing soln. and a soln. in the space defined by the vertical groove (7) into which a metallic lead (2) extends. Pref. the diaphragm (1) comprises filter paper, glass wool, a porous hydrophilic membrane of cellulose acetate etc. ADVANTAGE - Minimises interaction of the eluant with the internal soln. of the electrode, and is chemically inert, easy to mfr. and fracture resistant.
Patent DE-4201092-A1 (DE)
Title: Kiln for use in bakeries which is less susceptible to faults - including kiln cars which can be freely suspended in kiln and car lifting and lowering mechanism
Inventor: EBNER ALFONS
IPC: A21B1/44
Filed: 1992-01-17
Abstract: The kiln contains a coupling located below the kiln reef which cooperates with a counter-coupling on top of a kiln car equipped with rollers so that the car can be freely suspended in the kiln interior. The kiln is also provided with an arrangement for lifting and lowering the car and a drive for rotating the coupling about a vertical kiln axis. The car lifting and lowering arrangement comprises one or more ramps for the car rollers. Pref. the ramp has an initial rising portion, a flat summit at the kiln opening and a falling portion within the kiln. Alternatively the ramp is in the form of a step with an initial horizontal portion, followed by a lower horizontal portion. The coupling pref. consists of two horizontal guides fitted with rollers, on which counter-guides on the car can slide. USE/ADVANTAGE - The kiln is used in bakeries. The car lifting and lowering arrangement has a simple construction and is less suscpetible to faults than prior art lift mechanisms.
Patent DE-4201132-A1 (DE)
Title: Disc clutch with pressure plate and membrane spring - has pressure element applying reaction force to spring
Inventor: TAKASHI YUKIHISA
IPC: F16D13/71
Filed: 1992-01-17
Abstract: The disc clutch comprises a clutch cover (1) which houses a pressure plate (2) wherein a membrane spring (3) is mounted between the cover and plate where it is held by bearing devices (10) which are fitted with pressure means (7) which apply the reaction force against the membrane spring. The pressure means are fixed against the bearing devices by suitable fastening means (6) such as coil spring or bearing sleeves. ADVANTAGE - Simple structure.
Patent DE-4204833-A1 (DE)
Title: Portable banknote and credit card inspection lamp - comprises battery-powered transistor oscillator for driving UV discharge tube
IPC: G07D7/128
Filed: 1992-02-18
Abstract: The money-tester instrument consists of a rectangular box of dimensions 16.5 x 2.2 x 5.3 cm with a fluorescent UV tube 13.6 cm in length on one side. An ON-OFF switch and label are on the top face. The drive circuit for the UV tube is powered by 4 cells, and contains a transistor oscillator transistor, ferrite core transformer and feedback components.
Patent DE-4205145-A1 (DE)
Title: Vertical deflection circuit for high resolution image TV receiver - feeds higher operating voltage to auxiliary deflection coil after temporary lifting of shift current used for image compression
Inventor: OHNEMUS FRITZ DIPL ING
IPC: H04N3/16
Filed: 1992-02-20
Abstract: The deflection circuit allows an image to be compressed for insertion of an associated text, using an auxiliary vertical deflection coil (6), supplied with a shift current (iV) at half the line frequency via a switching amplifier (8). The shift current (iV) is disconnected for the duration of a character field via a marking pulse (FB), the switching amplifier (8) being coupled to a higher operating voltage than normal, for a relatively short interval, upon restoration of the shift current (iV). Pref. the amplifier (8) is connected to the first operating voltage via a diode (16) and to the higher operating voltage via the collector/emitter path of a transistor (29). ADVANTAGE - Rapid restoration of shift current to prevent visible image interference.
Patent DE-4210299-A1 (DE)
Inventor: HOLWEG FRIEDRICH ING GRAD
IPC: F16C29/06
Filed: 1992-03-28
Abstract: In a roller bearing (1) for the straight-line movement of a supporting component (2) along a guide rail (6), the quantity of relubrication is to be minimised regardless of the installation position of the roller bearing (1). This is achieved by the invention in that a separate lubricant line (13) is inserted in a channel (10) of a head (8) for the lubricant supply which takes the form of a single-lipped seal (16) in a region in which lubricant exit points are desired.
Patent DE-4213071-A1 (DE)
Title: Cool-box for milk and other drinks suitable for children - is shaped like toy house with drawers for drinks and ice packs held in "attic" space
Inventor: MATULLA KONRAD
IPC: F25D3/06
Filed: 1992-04-21
Abstract: The cool-box is shaped like a toy house with a ridge roof. There are drawers within the cool-box which can be pulled out or pushed in, and in which the cartons or bottles stand. The drawers are inserted from one end of the cool-box. Ice packs are placed in the "attic" section of the cool-box. USE/ADVANTAGE - Suitable for children, to promote milk drinking.