baber/WOPTO huggingface dataset:
Patent DE-3842169-A1 (DE)
Title: Circuit arrangement with an FET output stage
Inventor: NITSCHKE WERNER DIPL PHYS
IPC: H03K17/18
Filed: 1988-12-15
Abstract: A circuit arrangement with a field-effect transistor output stage for switching a load on and off is proposed which is provided with a monitoring circuit for triggering fault signals in the case of a short circuit and power interruption in the load circuit. A low power dissipation, simple circuit configuration and reliable overload disconnection are obtained by the fact that the monitoring circuit has a logical signal input (Sk1) for switching the output stage (T4), that the potential (U1) between output stage (T4) and load (V1) passes via a voltage divider (R21/22) to a comparator input (-), the positive input of which has a reference potential (U2) and the output of which controls the output stage (T4), that the potential (U1) passes as logic signal via a threshold switch (S2) to a signal output (Rk1), and that the input and output signals of the monitoring circuit are logically combined in an IC for determining the fault (Figure 1). <IMAGE>
Patent DE-3843219-A1 (DE)
Title: Hard cemented composite and process for the production thereof
Inventor: DREYER KLAUS DR
IPC: C22C49/08
Filed: 1988-12-22
Abstract: The invention relates to a hard cemented composite of hard material, a binder and embedded reinforcing material and also a process for producing a hard cemented composite by a powder metallurgical route. To obtain a hard cemented composite having a high toughness, greater hardness and a lower susceptibility to fracture, it is proposed that monocrystalline (single-crystal) acicular and/or tabular reinforcing materials (whiskers and/or platelets) provided with a coating inert to the binder metal phase and composed of borides and/or carbides, and/or nitrides and/or carbonitrides of the elements of the group IVa or Va or mixtures thereof and/or coated monocrystalline reinforcing material composed of SiC, Si3N4, Si2N2O, Al2O3, ZrO2, AlN and/or BN be incorporated. The hard cemented composite is produced by a powder metallurgical route, in which the reinforcing material in deagglomerated and classified form and [lacuna] by means of CVD or PVD with a coating inert to the binder metal phase is mixed with the milled mixture of hard materials and binder, and is dried, granulated, uniaxially or cold-isostatically pressed and the composite is produced by sintering or a combined or separate sinter/HIP process or by uniaxial hot pressing. The uniaxial hot pressing is preferably carried out with reinforcing material contents above 20 % by volume; below this value the other specified processes are preferred.
Patent DE-3844339-A1 (DE)
Title: Method for producing gate electrodes
Inventor: DICKMANN JUERGEN
IPC: H01L21/288
Filed: 1988-12-30
Abstract: The method according to the invention provides a technically simple procedural method for producing gate electrodes both for individual field-effect transistors and for complex circuits. Using few etching steps, an electroplated Schottky gate is produced, sunk into the top epitaxial layer of the component layer stack. Simultaneously with the gate production, the production of the electrical leads for the component or a circuit, especially an MMIC circuit, is or are produced.
Patent DE-3900626-A1 (DE)
Title: Hirudin derivative
Inventor: CRAUSE PETER DR
IPC: A22B7/00
Filed: 1989-01-11
Abstract: A hirudin derivative which is characterised by the N-terminal amino-acid sequence Leu-Thr-Tyr-Thr-Asp shows high biological activity. This hirudin derivative can be obtained very efficiently by genetic engineered preparation in yeasts.
Patent DE-3902853-A1 (DE)
Title: Device for automatically positioning and securely clipping flexible lines
Inventor: ARNECKE HERBERT
IPC: H02G3/00
Filed: 1989-02-01
Abstract: For positioning and securely clipping lines (3) on a component, for example the floor assembly (1) of a motor vehicle, use is made of a programmable automatic handling machine (11) having a roller head (12) which exhibits a drive roller (14) provided with peripheral grooves (14) for receiving individual lines (3), a press-on or press-in roller (15) for the lines, and a guide piece (19) and a pressure-exerting piece (20) for the lines (3), for pressing into clips (2) which are arrested on the component (Figure 2). <IMAGE>
Patent DE-3903471-A1 (DE)
IPC: B29C51/14
Filed: 1989-02-06
Abstract: The moulding, especially for use in motor vehicles, for example as a door panel, parcel tray, engine bonnet, engine shield or the like, consists of a self-supporting, preformed and compressed component, (1) particularly, one which is joined, on at least one side, to a non-rigid component (2). In a moulding method, the material for forming the self-supporting component is laid the mould (4) surface, then covered with a gas impermeable layer (3) which is further covered with the non-rigid component. The layered body is heated and pressed against the mould surface by excess or reduced gas pressure. The process enables combination of a self-supporting component with a sound-absorbing layer. <IMAGE>
Patent DE-3905140-A1 (DE)
Inventor: WALLSTEIN DIETER DIPL ING
IPC: F28F21/00
Filed: 1989-02-20
Abstract: A heat exchanger for cooling hot raw gas with aggressive constituents and for heating the pure gas obtained by purification of the raw gas comprises a housing with two side walls and an upper and a lower tubesheet. The inner side walls are associated with partitions to form flow channels. The ends of a plurality of exchanger tubes parallel to each other and to the side walls are inserted in the upper and lower tubesheets. The hot raw gas flows through the exchanger tubes and the pure gas flows through the housing perpendicular to the exchanger tubes. The housing and the partitions are made preferably of highly corrosion-resistant sheet metal and the exchanger tubes are made preferably of glass. To improve this type of heat exchanger so as to obtain the desired heating of the side walls and hence prevent corrosive condensation, with a relatively simple structure, the pure gas outlet from the heat exchanger communicates through at least one pure gas duct (4) with the flow channels (4) of the two side walls (3). The pure gas ducts (4) open into the upper and/or lower regions of the flow channels (14). The flow channels (14) have front outlet orifices (10) for the recycled pure gas.
Patent DE-3906520-A1 (DE)
Title: Device for preparing optical waveguide ends with connectors
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/255
Filed: 1989-02-27
Abstract: The object of the invention is to create a device which permits the preparation of optical waveguide ends with connectors in a reproducible manner. Each of the workstations (1, 2, 3) for removing the optical waveguide coating (16), for cutting the optical waveguide ends to length and for fixing these ends in a connector (21) has a rail (5, 22, 23, 24) for guiding a carriage (4, 11) to which the optical waveguide ends to be spliced are fastened and which, together with the optical waveguide ends, runs through the individual workstations (1, 2, 3). Each of the workstations (1, 2, 3) has carriage stops (7, 8, 9, 10). The carriages (4, 11) are moved in each workstation to a stop and the optical waveguide ends are precisely positioned in this way. The device described is used for the on-site production of repair splices. <IMAGE>
Patent DE-3909839-A1 (DE)
Title: Pine-marten protection device
Inventor: BURKHARDT MICHAEL DIPL ING
IPC: H01B7/18
Filed: 1989-03-25
Abstract: The invention relates to a pine-marten protection device for cables or thin flexible tubes (hoses) on or in vehicles. It consists essentially of a plurality of bite-resistant protection elements which are threaded onto the cables or flexible tubes. The protection elements are formed by two hollow spherical sections which are integrally connected to one another, via a short tubular section like a waist, the external diameter of the one, smaller hollow spherical section corresponding with the internal diameter of the other, larger hollow spherical section to a large extent. The protection elements can be locked to one another in such a manner that they form a flexible chain which does not have a free point anywhere, and the hollow spherical sections which are latched to one another of two adjacent protection elements forming joints.
Patent DE-3915915-A1 (DE)
Title: Device for carrying out thermal processes
Inventor: LENDVAI FERENC
IPC: B01J19/00
Filed: 1989-05-16
Abstract: Device for carrying out thermal processes which has a vessel, if required an autoclave, which vessel is furnished with a heat supply space or is connected by its interior to a heat supply space via a heat-conducting material, in addition a space for a heat transport medium, preferably a jacket space and a main piping circuit for heat transport medium having a circulation pump, the invention being characterised in that a liquid control valve is connected to the space receiving the heat transport medium or the space between the pressure side of the circulation pump and receiving the heat transport medium, the other connection of which liquid control valve is preferably connected to an outlet line and in that a water line, a brine line or a line for another heat transport medium is directly or indirectly connected to the suction side of the pump via a medium inlet valve, preferably a water inlet valve and a brine inlet valve.
Patent DE-3916027-A1 (DE)
Title: Device for transferring crown corks to sealing elements
Inventor: ILTZSCHE LUTZ
IPC: B67B3/06
Filed: 1989-05-17
Abstract: The object of the invention is to transfer crown corks from a feeding channel to sealing elements of a high-performance bottle sealing machine in an operationally reliable fashion, while avoiding rapid acceleration and the feeding of two corks at the same time, both on a continuous basis and with reduction of noise levels. According to the invention, the object is achieved in that the end of the feeding channel is arranged so as to be vertical; the transfer wheel is conical and disclike with an angle of 90 degrees and has an axis of rotation at 45 degrees to the feeding channel; reception pockets with inlet outlines are situated on the transfer wheel; a controlled locking magnet is arranged alongside the feeding channel at the level of the last crown cork which is not yet situated in a reception pocket; and a further feeding magnet is arranged at an extension of the feeding channel beneath the reception pockets of the transfer wheel, the end of the feeding channel and the transfer wheel being composed of paramagnetic material. The invention is used in bottle sealing machines and relates to a device for transferring crown corks to sealing elements of a feeding channel, a transfer wheel being mounted between the end of the feeding channel and the sealing elements. <IMAGE>
Patent DE-3918053-A1 (DE)
Inventor: GRUBER HERMANN
IPC: H04R1/02
Filed: 1989-06-02
Abstract: A loudspeaker (10) with bayonet fixing noses (17) also exhibits, apart from the features known from conventional speakers of this type, projections 19 which are constructed in such a manner that they cover insertion slots (15) on the holding device (11) when the speaker is assembled. Due to the projections, so-called acoustic shorts are avoided in the case of open loudspeakers. This considerably improves the acoustic characteristics. <IMAGE>
Patent DE-3923594-A1 (DE)
Title: Earth current monitor for three=phase drive motor - has two parallel signal processing circuits controlling automatic cut=out device
Inventor: GRADNITZER ECKHARD
IPC: H02H3/16
Filed: 1989-07-17
Abstract: The earth current monitor has an ohmic measuring resistance (4) providing a signal (UF) in response to an earth short-circuit which is handled by a pair of signal processing circuits (10,11). Tuned to different frequency bands. The first of these circuits (10) uses integration with the obtained integration value compared with a given threshold over a deprived interval. The second circuit (11) compares the signal with a threshold amplitudewith pulse width measurement of the output signal from the amplitude comparator. The output signals from the 2 circuits (10,11) operate a cut-out device when an earth current fault is detected.  Pref. the measuring resistance (4) is coupled to the 2 signal processing circuits (10,11) in a separation amplifier (9). ADVANTAGE - Reduced false response rate.
Patent DE-3931933-A1 (DE)
Title: Expression of recombinant genes in Esherichia coli - promoted by high levels of arginine-incorporating transfer RNA
Inventor: BRINKMANN ULRICH DIPL BIOL
IPC: C12N9/72
Filed: 1989-09-25
Abstract: Recombinant genes contg. AGA and/or AGG codons for Arg are expressed in E. coli by transformation of the E. coli cells with an expression vector contg. the recombinant gene, provided that the amt. of Arg-incorporating tRNA recognising the AGA and/or AGG codons (hereafter called Arg tRNA) present in the cells is increased by a factor of at least 5 over the amt. normally present. Also claimed are (a) expression vectors contg. a recombinant gene and a gene coding for Arg tRNA, and (b) expression-assisting vectors which contain and express a gene coding for Arg tRNA and are compatible with an expression vector having a ColE1 replication origin. USE/ADVANTAGE - The process is esp. useful for promoting expression of eukaryotic genes having a large no. of AGA and/or AGG codons, e.g. those coding for human urokinase, t-PA, HIV proteins (e.g. gp.41 or p24) or yeast alpha-glucosidase. High levels of Arg tRNA in the transformed cells increases the proportion of recombinant protein produced and improves the vitality of the cells.
Patent DE-3932678-A1 (DE)
Title: Fast search device for video cassette tape recorder - reduces length of tape in frictional contact to minimise risk of damage during high-speed movement
Inventor: CHOI BO HYUN
IPC: G11B15/665
Filed: 1989-09-29
Abstract: On one side of the head drum (11) an audio and control head (15) is mounted on a lever (17) pivoted about a screw (18) on the baseplate (10), spring-biased (19) towards the reprodn. position. A coupling pin (21) at the other end of the lever (17) constrains the head (15) to make contact selectively with tape (T) in the central pocket or recess (C1) of the cassette (C) as a connection plate (13) moves to right or left with corresp.  rotation of a cam wheel (12). ADVANTAGE - The audio and control head is rotated in accordance with movement or displacement of the connection plate without drawing out the tape by means of a separate leading pin lever.  The construction is simplified and risk of drawing the tape into the head is excluded.
Patent DE-3940362-A1 (DE)
Title: Air conditioning system for motor vehicle - has components arranged so that ducts of defrosting system are short
Inventor: GEIGER HARY
IPC: B60H1/00
Filed: 1989-12-06
Abstract: The air conditioning system of a motor vehicle, especially a private car, consists of a first housing (6) which encloses the heat exchanger (9). This first housing (6), is connected to the duct (17) which supplies warm air to defrost the windscreen (4) and to the ducts (12, 18, 13) which distribute air to the head room, the floor space, and to the rear of the vehicle interior. A second housing (7) which encloses the fan (24), is connected to the first housing on the side of this first housing which faces towards the interior of the passenger compartment. This arrangement reduces the length of the ducts of the defrosting system and so prevents excessive cooling of the air before it reaches the windscreen. USE - Air conditioning of motor vehicles.
Patent DE-4000630-A1 (DE)
Title: One-way street warning electronic system for vehicle - detecting vehicle direction with sensors along road and operating warning lights and road blocks
Inventor: WEBER MANFRED PETER DIPL ING
IPC: G08G1/07
Filed: 1990-01-11
Abstract: The system uses passive or active sensors in the road (or track) (1). These sensors detect vehicles travelling in a given direction and activate warning signals at the roadside. In this way vehicles travelling the wrong way along a one-way street are warned of this fact. The sensors may be inductive loops (3,4) on or in the road arranged to respond to one direction only. Alternatively the sensors may employ infra-red, radar or laser radiation or ultrasound. The warning signals from the sensors may also operate road blocks (= barriers that swing down to block the road) to prevent the vehicle continuing the wrong way. USE/ADVANTAGE - Drivers going wrong way are warned and blocked.
Patent DE-4005102-A1 (DE)
Title: Bicycle change-speed selector lever - actuates both front and rear changeover devices using CAM mechanism
Inventor: BECK ARMIN
IPC: B62M25/04
Filed: 1990-02-17
Abstract: The selector lever is for the different speeds in a bicycle chain drive mechanism, having a front changeover device acting on chain blades at the pedal spindle axis, and a rear one acting on the sprockets at the rear axle. The two devices are actuated by one lever, and typically comprise cam-operated levers. The two cams (A,B) can be actuated by a lever, working via opposite-facing pawls on ratchet wheels. Thus the same lever can be used for chaning up and down. USE/ADVANTAGE - Easy operation bicycle gearchange mechanism by the uninitiated.
Patent DE-4007839-A1 (DE)
Title: Vacuum collector for solar system - has flat or slightly curved surface facing sun and its opposite side is semi elliptical or half round
Inventor: MUELLER FRIEDRICH
IPC: F24S10/40
Filed: 1990-03-12
Abstract: The vacuum collector is for a solar energy recovery system. It has an absorber (16) for the conversion of sun rays into heat which is subsequently carried by a liq. heating medium out of the collector housing (10). The housing (10) on the side (12) facing the sun is flat or slightly curved, less so than the opposite side (14), which can be half round, semi elliptical or half oval. USE/ADVANTAGE - Snow is easily removed and it is easily and cheaply produced.
Patent DE-4010458-A1 (DE)
Title: Pivoting last for shoe - has holder and two=part last held together through V=shaped link and connected to driving mechanism
Inventor: MADSEN KURT BO
IPC: A43D117/00
Filed: 1990-03-31
Abstract: The pivoting shoe-last (1) consists of a holder (8) and the last (9, 10). The last comprises of two parts (9, 10) forming a stable shape, movable through a lever mechanism. Fixed onto the holder is a V-shaped link (5), connected to the front part of the last (9). A release rod (14) connects the V-link to the driving mechanism. This allows the front part of the last to be brought into the right position for moulding the sole to the shoe and for removing the shoe. USE/ADVANTAGE - Shoe-last. No handling of upper leather. when attaching sole and removing the shoe, thus reducing damage.
Patent DE-4012272-A1 (DE)
Title: Fat-reduced edible water-in-oil spreads
IPC: A23D7/015
Filed: 1990-04-17
Abstract: Fat-reduced edible spreads are prod. by dispersing water into an edible fat to form a w/o emulsion. The emulsion is formed by (a) forming a mixt. contg. the water and the edible fat in a crystallised form and (b) subjecting it to cutting and mixing in a turbine comminutor under such conditions that the temp. rises by 1.5 deg.C or more but not enough to destabilise the mixt. or cause water to be released from the mixt. The temp. increase is 1.5-20 deg.C. The fat is butter fat and/or margarine fat. It is butter comprising 80% milk fat, 16% moisture, 2% milk solids other than fat and up to 2% salt. The amount of water is sufficient to give a mixt. contg. 30-75% fat. The mixt. in (a) is formed at 13-17 deg. C and has penetrometer value 210-360. Step (b) is at 15-18.5 deg.C. the temp. rise due to mixing alone in (b) is 0.5-1 deg.C. The comminutor has an inlet connected to a comminuting chamber which contains at least one pair of cutters each having several blades with passages between them. The cutters are arranged to be driven independently of mixt. flow through the chamber so that the mixt. is cut, passed through the passages are re-combined adjacent the outlet into the comminutor. Step (a) comprises (i) heating the fat to a temp. below the m.pt. of the highest melting fat until the lower melting crystals are melted, (ii) homogeneously admixing water with the hot fat and (iii) cooling to increase solids content and viscosity and produce a pumpable plastic mass. Step (iii) comprises actively and uniformly cooling from 32-37 deg.C to 10-19 deg.C over 1-2 mins, or passively crystallising under resting conditions. Fat-reduced spread intermediates are produced by the process. Spreads are produced by the process.
Patent DE-4014697-A1 (DE)
Inventor: DREXEL PETER DIPL ING
IPC: B23Q7/14
Filed: 1990-05-08
Abstract: In prior art devices of this kind, the signal strips mounted in front of each stopping place are fixed in place so that the transport trolley is braked before each stopping place and brought slowly up to the stopping place. This delays unnecessarily the progress of the trolleys when the programme does not call for stops at one or more of the stopping places. The arrangement of switchable signal strips (40) at the stopping places concerned, as disclosed by the invention, enables this disadvantage to be overcome and system throughput to be considerably improved. Power for the signal-strip drive unit (46) is supplied through the trackway supports (10) which are designed as hollow-section rails (12a, 12b). This measure, which simplifies installation, can also be used for powering other functional units in the system. The preferred field of application is in vehicles with flexible track or assembly networks in industrial manufacturing facilities.
Patent DE-4016300-A1 (DE)
Title: Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder
IPC: F04B43/073
Filed: 1990-05-21
Abstract: A displacement pump (1) and a proportional valve (2) drive the hydraulic cylinder (3). The hydraulic cylinder moves the work piston (5) forwards and backwards, and in its forward run the piston presses hydraulic fluid (6) against the membrane (7). The membrane moves in the pump housing chamber (10), and via a pressure valve (9) medium is delivered into the pressure conduit (15). At the same time, medium is sucked into the pump housing (14) via a suction valve (12), which is changed over smoothly by an end switch (16) via ramp control. When the set operating pressure is reached, the pressure oil feed flow is set back to a zero quantity by a pressure driver (19). USE/ADVANTAGE - A hydraulically driven membrane pump in which  there is optimal use of the energy derived from th drive unit, a longer work life for component parts, and appreciable noise redn.  by smooth changeover of the work piston.
Patent DE-4017694-A1 (DE)
Title: Steering control for all-wheel drive vehicle - has speed sensors on both axles and corrected steering when speed differs on axles
Inventor: SOEJIMA YUJI
IPC: B62D6/00
Filed: 1990-06-01
Abstract: The vehicle has all wheel drive and has the rear wheels steered in relation to the front wheel steering and the vehicle speed. Separate speed sensors for the front- and rear axles provide speed signals to the processor control (6). If the speed difference between the axles lies inside a programmed range then the processor operates on the rear axle speed.  If the speed difference is outside this range then the processor operates on the higher of the two signals. The programmed range has a ratio range of 0.7 to 1.3. The additional control mode only operates if the speed difference is maintained for preset time intervals. A simple addition to the four wheel steering thus provides an active steering control. ADVANTAGE - Improved control, improved stability and safety.