baber/WOPTO huggingface dataset:
Patent DE-3937393-A1 (DE)
Title: Modification of background doping level of semiconductor devices - by low temp. annealing to increase density of oxygen-donors in n=type silicon substrate material
Inventor: CAFFIER ROBERT DIPL PHYS
IPC: H01L21/322
Filed: 1989-11-10
Abstract: The conductivity of n-type semiconductor substrates is modified after completion of the device-structure. The method features the use of substrates with donors which can be thermally activated by an anneal, pref. in an inert gas, to increase the background doping to the desired level. These donors are pref. generated by O2 contained in the Si substrate, pref. introduced by a high temp. process or already present as in zone-refined Si. The anneal is pref. carried out at about 420 deg. C for a time of 10-100 hrs. The devices made on the substrates may be metallised in advance. USE/ADVANTAGE - The method allows mfr. of the devices and optimisation after measurement of the devices by a low temp. anneal. The change may be counteracted by an anneal at a temp. of about 520 deg. C as the process is reversible. The process increases the yield of good devices and allows a reduced range of doped starting material to be stocked. It is used for the mfr. of thyristors.
Patent DE-3942664-A1 (DE)
Inventor: BOEHM ALFRED
IPC: G01N27/41
Filed: 1989-12-22
Abstract: The invention relates to a sensor system for detecting moisture in a gas under test. On the basis of two current saturation regions in the determination of the moisture content with the aid of a zirconia sensor, the invention adopts the approach of providing two sensors which are spatially separated from each other and which are operated at different voltages corresponding to the individual saturation current regions. As a result, the moisture content of the gas under test can be determined very precisely and on-line by further evaluation of the signals. <IMAGE>
Patent DE-4004229-A1 (DE)
Title: Electrical cable for vehicle wiring - has longitudinal separation line allowing cable to open out into flat configuration
Inventor: KRAEMER WILHELM
IPC: H01B7/08
Filed: 1990-02-12
Abstract: The electrical cable for vehicle wiring has alternate round or flat configurations. This is obtained by arranging the cable conductors in a circle and providing a longitudinal separation line (Fig. D) in the cable insulation between 2 of these conductors (Fig. A) allowing the cable to be opened out, so that the  conductors lie next to one another in a common plane. The separation line (Fig. D) is provided by a notch in the cable insulation reducing its wall thickness. The notch location is indicated by a colour coding. Alternatively it may be provided by spaced perforations extending in a line along the cable insulation. ADVANTAGE - Combines advantages of round and ribbon cables.
Patent DE-4004810-A1 (DE)
Inventor: HEYDE JUERGEN DIPL ING
IPC: H01J61/36
Filed: 1990-02-16
Abstract: A unilaterally pinched discharge lamp (1) with increased high voltage resistance in which the outer current leads (4) projecting from the pinch base (7) are bent back in different directions immediately at the pinch end in the pinch plane at an angle until they are at right-angles to the lamp axis. The leads (4) have an insulating member (5) at least over the width of the pinch base (7), which member is adhered or welded to the pinch. Member (5) is a glass rod or plastics material and may extend beyond the pinch base (7). <IMAGE>
Patent DE-4004896-A1 (DE)
Title: Hydrogen-oxygen fuel cell battery - contg. recombination catalysts to prevent hydrogen enrichment of oxygen stream
Inventor: WINSEL AUGUST PROF DIPL PHYS D
IPC: H01M8/04
Filed: 1990-02-16
Abstract: In a H2/O2 fuel cell battery, H2/O2 recombination catalysts are in the oxygen entry or exit . lines between oxygen electrode gps. for recombining the hydrogen content of the oxygen gas catalytically with oxygen to form water. Catalysts pref. have temp. sensors and are in heat exchange relationship with the electrolyte flowing through the cells or with the cell-cooling water circuit. Moisture collection may be effected by arranging the catalysts in water vapour exchange relationship with the electrolyte or the circuit. The catalysts pref. comprise gp. VIII precious metal supported on an electrolyte resistant support (e.g. Al203, TiO2 or MgO) which is hydrophobised with PTFE.
Patent DE-4005378-A1 (DE)
Title: Process control in sulphur recovery by Claus process - by measuring hydrogen sulphide sulphide and sulphur di:oxide concn. and correcting combustion air supply
Inventor: LELL RAINER
IPC: C01B17/04
Filed: 1990-02-21
Abstract: The process concerns control of plant for S recovery by partial combustion of gas (I) contg H2S with gas (II) contg 02 in a combustion chamber of a Claus plant to produce a gas mixt contg H2S and S02, from which S is produced and sepd. Reaction of the gas mixt leaving the combustion chamber is carried out in catalytic stage(s) and opt in after-treatment. Before or after one of the catalytic stages or before, during or after the after-treatment, the concn of H2S and S02, K and P, in the gas mixt is measured; the amts of (I) and (II) supplied to the combustion chamber are measured; the results of these measurements are fed into control equipment and hence the amt of (II) for correction to bring the difference D = K - a.P to zero is calculated (a = a factor depending on the process); and the (II) is changed to the amt for correction.
Patent DE-4005968-A1 (DE)
Title: Dust cart with removable pressing mechanism - can be closed at back when pressure is removed
Inventor: MOTSCH RUDOLF
IPC: B65F3/14
Filed: 1990-02-26
Abstract: The refuse collecting lorry (10) includes a refuse container (14) and pressing device (16) which are detachably connected together. The back of the refuse container (14) is closable when the refuse container is separated from the pressing device. The refuse container can be detachably mounted on the vehicle chassis which can be designed as a hook lift vehicle. USE/ADVANTAGE - Easier economical collection and removal of household and industrial waste.
Patent DE-4006114-A1 (DE)
Inventor: CONZELMANN GERHARD DIPL PHYS
IPC: H02J7/16
Filed: 1990-02-27
Abstract: The proposal is for a power supply system, especially for motor vehicles, with a battery (6) and an alternator or three-phase generator (1) with a downstream rectifier (3), the voltage (U1) of which is limited by the cutting in and out of the field current of the generator (1) by means of a voltage regulator (4). The voltage regulator (4) detects the actual value of the voltage at the terminals of the generator (1) and generates a mean field current in the exciting field of the generator (1) in such a way that the voltage of the power supply system remains virtually constant, regardless of the load and rotation speed. Switchgear is provided in order to detect, by means of an auxiliary value at the terminals of the generator (1), any undesirable d.c. voltage drop in the power supply system on the line from the generator (1) to the battery (6) caused by the load current and to compensate it at least approximately. The a.c. voltage (V1) available at the terminals of the generator (1) may be used as the auxiliary value.
Patent DE-4012146-A1 (DE)
Title: Precooling of coke-oven gas - with electrostatic filtration and naphthalene scrubbing
Inventor: POLLERT GEORG DR
IPC: C10K1/04
Filed: 1990-04-14
Abstract: Indirect and/or direct precooling of crude coke-oven gas that has been directly cooled in the gas collection system of the coke oven. The process comprises (a) the hot gas from the collection system is passed through an electrostatic filter to remove nongaseous components, and (b) subsequent precooling includes a naphthalene scrubbing stage which is operated to a temp. above the naphthalene dew point (pref. at 30-50 deg. C) and which removes sufficient naphthalene for the naphthalene dew point to be reduced below the cooling end temp.. Pref. naphthalene scrubbing is effected with benzene or coke-oven tar. ADVANTAGE - Fouling of downstream cooling equipment by tar and solid naphthalene is avoided. (5pp Dwg.No.0/1)
Patent DE-4014146-A1 (DE)
Title: Measuring unit for workpiece
Inventor: RAHO GUGLIELMO
IPC: G01B21/20
Filed: 1990-05-02
Abstract: The base (2) of the measuring unit (1) defines a measuring plane. At least one carriage (5) is movable along a first guide (4) on the base along a first axis, x. The measuring head (13) with a probe (15) is installed on another carriage (9) movable along its own translation axis (2) at right angles to the first. This second carriage (9) has a handle (17) with at least one operating element for manual control of the translational movement of the measuring head. Transmission elements are provided to couple the operating element(s) to the measuring head. The column of the latter can be driven by an electromotor controlled from the handle.
Patent DE-4018216-A1 (DE)
Title: Shaft sealing ring e.g. of PTFE - seated in interfitting metal housing rings
Inventor: JUNG NORBERT DIPL ING
IPC: F16J15/3268
Filed: 1990-06-07
Abstract: A shaft sealing ring consists of a lip seal ring of PTFE or similar material with an inner peripheral radial portion, which is bent to form a sealing lip resting on the shaft, and an outer peripheral axial portion, which is pressed into the seating bore formed by metallic housing rings coaxially surrounding the shaft. The novelty is that the axial portion (7) is enclosed by at least two axially interfitting housing rings (3, 4). ADVANTAGE - The design provides optimal seating of the ring in the housing, together with good static sealing over an extremely long service life under operating conditions.
Patent DE-4018893-A1 (DE)
Title: Water-pipe-sealing plug
IPC: F16L55/11
Filed: 1990-06-13
Abstract: Water-pipe-sealing plug has passage from seal groove through enclosing wall
Patent DE-4020026-A1 (DE)
Inventor: ZENGERLE MANFRED DIPL ING
IPC: H02M5/44
Filed: 1990-06-23
Abstract: A power converter assembly with an intermediate DC circuit having a capacitor bank, consisting of at least one power converter module (1, 11, 21, 31) is proposed. The electrical module connections (2, 12, 22, 32) are arranged in a row and can make contact with a first low-inductance connecting rail system (4, 14, 24, 34). The capacitor bank (6, 16, 26, 36) is allocated mechanically to the power converter module. The electrical connections (9, 19) of the capacitor bank are connected to a second low-inductance connecting rail system (5, 15, 25, 35), which contains the intermediate DC circuit lines (44, 45, 46, 47), is arranged at right angles to the first connecting rail system and is electrically connected to the first connecting rail system. This basic arrangement can be extended as required, in that the second connecting rail systems of adjacent modules are in each case connected to one another by electrical couplings (8, 18, 28, 38), as a result of which the entire capacitor bank of the intermediate DC circuit is formed from the single partial capacitor banks allocated in each case to the modules. <IMAGE>
Patent DE-4020069-A1 (DE)
Title: Labelling machine for foil wrapped garments - has ram pressing label onto accurately predetermined label spots
Inventor: PAVEL WILFRIED
IPC: B65C5/02
Filed: 1990-06-23
Abstract: When attaching labels to the wrapping foil of packed garments to the latter (3) is moved against an abutment surface (5/23), temporarily stopped and the data-bearing label (1) is pressed, preferably stuck, on one side of the foil (2) in a specific position. The labelled article is then moved away. The labelling machine has behind the abutment surface a stamp or ram (7) whch can be moved through an opening (6) in the abutment face against the article in order to press the label against same. USE/ADVANTAGE - The labels are applied accurately to predetermined positions of a grament wrapping foil in a continuous working flow.
Patent DE-4023101-A1 (DE)
Title: Electrical power tool - has switch interlock mechanism to ensure safe operation of unit
Inventor: SCHULZ MANFRED DIPL ING
IPC: F16P3/10
Filed: 1990-07-20
Abstract: An electrical power tool, such as a circular saw, has a motor on a hinged plate that can be moved through an arc to adjus the working cut of the saw. A switch actuator lever (9) has a movable link (26) that interacts with an interlock (30). The interlock is in the form of a spring biased link that engages wih a rail (5) to secure the motor housing in the selected positio. The link (26) may be operated to release the interlock to set the position. ADVANTAGE - Provides safe operation of power saw.
Patent DE-4030682-A1 (DE)
Title: Pneumatic amplifier for motor vehicle braking force -  incorporates valve constituted by seating and sealing edge, with provision for alternative electromagnetic operation in emergency
Inventor: DITTNER ADAM
IPC: B60T13/57
Filed: 1990-09-28
Abstract: A spring-biased diaphragm (2) divides the amplifier housing (1) into two chambers (3, 4) connected by a vacuum port (17) and a valve (8) to e.g. the engine inlet manifold. Hydraulic pressure in the brake master cylinder is increased by movement of the diaphragm (2) and pressure piece (16) by means of the brake pedal connection (15). The control valve (10) is also electrically operable by an electromagnet (19) on a carrier (20) coupled to the control sleeve (12) which vents one chamber (4). ADVANTAGE - Normal brake operation is guaranteed with driver-independent automatic braking in unsafe conditions of e.g. wheelslip or excessive speed.
Patent DE-4034897-A1 (DE)
Title: Lace-up boot with opposite upper edge regions - has adjustable belt(s) engaging opposite lace points to pull lace tight
Inventor: STEIN RAINER MARIA
IPC: A43C7/08
Filed: 1990-11-02
Abstract: The lace-up boot has opposite upper edge sections (2) pulled together by the lace (1) to fit against the foot. An adjustable belt (9) has components engaging opposite lace-up points (4, 5) to pull them tight and secure them in a selected position. - It can be arranged to engage in loops in the lace so that, on release, the latter is loosened sufficiently to allow the boot to be fitted or removed.
Patent DE-4039677-A1 (DE)
Inventor: KNOLL WOLFGANG PROF DR RER NAT
IPC: G01N33/547
Filed: 1990-12-12
Abstract: A binding matrix contains a substrate upon which are adsorbed by means of anchoring groups solid phase reactants capable of binding at least one free reaction partner. The solid-phase reactant forms a diluted and essentially laterally homogeneous binding layer on the surface of the substrate. In addition, according to an assaying process for an analyte in an assay solution, a solid-phase reactant that forms a component of the disclosed binding matrix is used. The specific binding reaction is preferably determined by optical reflection techniques.
Patent DE-4104115-A1 (DE)
Title: Processor with two or more accumulators - uses accumulator pointer, operation code, operation pointer to identify accumulator contents and identification memory contents for bracket operation
Inventor: HINSKEN GERHARD PROF DR ING
IPC: G05B19/05
Filed: 1991-02-11
Abstract: A processor has at least two accumulators (A1-A4) for conducting arithmetic operations as well as loading and transfer operations. An accumulator pointer (Az) indicates which accumulator is allocated for an operation. An operation identification code (Ok) correspondint to the bracket operation is placed in an identification memory (KS) with several regions (B1-B4) associated with the accumulators. An operation pointer (Oz) points to the region from which the contents are to be combined, by using the bracket operation, with the contents of the accumulator indicated by the accumulator pointer (Az). ADVANTAGE - The arrangement simplifies the performance of digital functions, especially computations.
Patent DE-4105335-A1 (DE)
Title: Electric contact system for durable multiple switching - includes pre-contact connected to lamina lifted by pressure of counter contact on lamina
Inventor: LORENZ DIETER DIPL ING
IPC: H01H1/38
Filed: 1991-02-18
Abstract: An electric contact system has a lamina contact having a set of laminae and a counter-contact. At least one pre-contact member (11) is mechanically and electrically connected to at least one lamina (3) of the system such that a force exerted on the lamina (3) by the counter-contact (7) causes the pre-contact member (11) to lift away from the counter-contact (7). The lamina (2,3) are arranged in a ring held in a contact cage (4) and are pressed inwardly under the force of a spring (5, 6). When the pre-contact is made, part of the lamina (3) projects into the track of the counter contact (7). ADVANTAGE - Can be used with different types of h.v. switch. Enables durable switching of shunt currents and protects surface of main contact by operation of pre-contact.
Patent DE-4106539-A1 (DE)
Inventor: KUNKEL HORST
IPC: E03C1/05
Filed: 1991-03-01
Abstract: A device for the remote control of a shower comprises a first sensor (3) having a first detection region (5). If a user enters this detection region (5) a detection circuit (7) which is connected downstream of the sensor (3) ensures that the magnetic valve (9) which controls the water flow through the showerhead (1) is opened. A second sensor (4) is also provided which has a considerably smaller detection region (6). If the user who is standing under the shower (1) moves his hand into the smaller detection region (6) of the second sensor (4), a detection circuit (10) which is arranged downstream of said sensor likewise generates an output signal. The output signals of the two detection circuits (7, 10) are combined via a circuit (11) which carries out a logic AND function and produces an output signal when both the sensor (3) having the larger detection region (5) and the sensor (4) having the smaller detection region (6) respond. This output signal is now in turn supplied to a logic circuit (12) which, at the start of this signal, determines the respective switching state of the electrically operated valve (9), like a changeover switch, and moves it to the opposite state, that is to say for example closes an open valve or opens a closed valve. <IMAGE>
Patent DE-4111446-A1 (DE)
Title: Vehicle, esp. coach with fifth-wheel steering - has frame of bars, connected by joints, with link pins, engaging on guide bar and lever arm
Inventor: ENGLISCH ANDREAS
IPC: B62C3/02
Filed: 1991-04-09
Abstract: The coach has a bogie, located under the coach bottom (1), with a steerable wheel axle (4), connected to the bogie, and a shaft (7), engaging on the bogie. The shaft is turnable about an axis (32), which is fixed relative to the coach bottom. There is a frame, consisting of bars (10-13), connected by joints (14-17) with two crossbars (10,11), one at the back, one at the front. The two longitudinal bars (12,13) each have a centrally positioned link pin (20,21). The pins engage in a horizontal guide rail (23) with guide groove (24). A lever arm (30) is fastened to wheel axle and on one of the crossbars. The shaft engages on the other crossbar. ADVANTAGE - Automatic adjustment to carrying travel situations.
Patent DE-4111567-A1 (DE)
Title: Light grid and reflector units joined on one side by hook-in connection - are connected on other side with locking device having rotary slide engaging around catchment cam on holder cam device
Inventor: LEHRICH KARL
IPC: F21V13/10
Filed: 1991-04-10
Abstract: The light has a reflector unit (20), at the end of which a grid unit (21) is fixed. As locking device (33) for the grid unit, a rotary slide (36) is sunken into the wall (24) of one unit which, with one part of its periphery, extends over the wall and (35) and has a catchment cam. By rotation of the rotary slide, this cam engages around a holder cam (42) extending from the adjoining wall (23) of the other unit. The walls (23,24) with counterposed ends have recessses (34,41) which form into an enlarged circular recesses which accommodates the rotary slide. The recess (34) of one unit extends over more than 180 degree, forming a holder bearing for the rotary slide (36). The units on the side turned away from the locking device (33) are connected by a hook-in arrangement involving a projection on one unit engaging in a hole on the other. ADVANTAGE - With wall or ceiling lights, facilitating fixture of grid unit to reflector unit.
Patent DE-4114542-A1 (DE)
Inventor: SCHNEIDER RUDOLF DR
IPC: C07D211/72
Filed: 1991-05-04
Abstract: The invention relates to partly novel 3,4-cycloamidrazones, a process for producing them and their use in pharmaceutical preparations. The 3,4-cycloamidrazones are lactam-aryl hydrazones and cycloimide-aryl hydrazones. They are produced by the reaction of activated lactam and cycloimide derivatives with aryl hydrazines or aryl hydrazine hydrochlorides. The 3,4-cycloamidrazones of the invention are highly effective lipoxygenase inhibitors and may be used in medicaments to treat all kinds of inflammations, allergic conditions, asthma, bronchitis and psoriasis.
Patent DE-4118223-A1 (DE)
Title: Combined bundled and twisted yarn - uses pneumatic false-twister for drawn sliver followed by centrifugal spinning
Inventor: SCHWABE BERNHARD DR ING
IPC: D01H7/90
Filed: 1991-06-04
Abstract: To produce a combined bundled yarn, with a true twist, a drawn sliver of the required final thickness is partially bonded in a pneumatic false twister in a bundling process. It then passes to a centrifugal spinning process to give a true twist of the cladding fibres in a tight winding round the whole yarn cross section. The spinning speed in the centrifugal spinning stage is pref. identical to the yarn speed through the yarn bundling process. The high draft drawing unit has three and pref. four pairs of rollers, condensers and belts. It is followed by a special air jet or a combination of air jets, and at least one further pair of rollers. The final stage has at least one centrifugal spindle with a yarn guide tube. ADVANTAGE - The method gives faster mfg. speeds to give a yarn of high strength and a similar structure to conventionally spun yarns.
Patent DE-4120760-A1 (DE)
Inventor: KREUTER JOERG PROF DR
IPC: A61K47/48
Filed: 1991-06-24
Abstract: The invention relates to carrier systems for drugs, their preparation and their use. The carrier systems according to the invention exhibit spherical particles with a diameter of less than 1  mu m, optionally in combination with an appropriate bioadhesive polymer. The carrier systems have an improved bioadhesiveness and a high loadability with drugs and are able to provide a stable, pharmaceutically active concentration of drugs at the site of action over a longer period of time.
Patent DE-4120968-A1 (DE)
Title: Portable electronic computer unit - has battery compartment with access opening in peripheral wall of main body
Inventor: KOBAYASHI TAKAICHI
IPC: H01M50/247
Filed: 1991-06-25
Abstract: The battery set (25) has electrodes (45) and an engagement part (45) at its base wall. Contacts (31) are provided in the battery set compartment (20) so that they can engage the electrodes (43) of the battery set. The latter can exert a force in a direction corresp. to a pushing out of the battery set, to the access opening part (27). Engagement elements (38) in the base wall of the battery set compartment are brought in and out of engagement with the assigned engagement part (45) of the battery set. An attachment, projection (40) or a holding element is provided or formed at the battery compartment and at the battery set, in order to hold the battery set in the assigned compartment. The holding catch at the battery set in the assigned compartment can be released. USE/ADVANTAGE - Portable electronic computer, e.g. lap top computer or word processor. If holding force exerted by holding unit in battery compartment is released, unintended slipping out of battery set from compartment, leading to possible damage, is prevented.