baber/WOPTO huggingface dataset:
Patent DE-3811509-A1 (DE)
Title: Process for the preparation of formaldehyde
Inventor: RENKEN ALBERT PROF DR
IPC: C07C47/052
Filed: 1988-04-06
Abstract: The invention relates to a process for the preparation of formaldehyde from methanol by dehydrogenation at elevated temperature in the presence of a catalyst. The reaction is carried out in the presence of metallic sodium or of a catalyst containing at least one sodium compound at a temperature of 300@C to 800@C.
Patent DE-3812675-A1 (DE)
Title: Door for a motorised transport vehicle
Inventor: GRIMM HORST
IPC: B60J5/10
Filed: 1988-04-18
Abstract: Published without abstract.
Patent DE-3818955-A1 (DE)
Title: Absorber panel
Inventor: BACK LEONHARD
IPC: F24S10/70
Filed: 1988-06-03
Abstract: The absorber panel for obtaining heat from solar energy and/or the environment has two plates (1, 2), preferably glass panes, and a frame (3) which is arranged leaktightly between these two plates (1, 2) in the peripheral edge region and, between the plates (1, 2), forms a hollow space (4) with inlet and outlet (5, 6) for a liquid heat transfer medium flowing through this hollow space (4). A second, inner frame (9) forming an inflow chamber (7) with inlet openings (8) into the hollow space (4) is arranged leaktightly at a distance from the outer frame (3) in the hollow space (4), and both frames (3, 9) are formed from bar sections (10, 15, 9a, 9b) of synthetic glass. <IMAGE>
Patent DE-3825057-A1 (DE)
Title: Bottle ring and device for automatically attaching a flat article on such a bottle ring and for fitting the bottle ring onto a bottle
Inventor: KOCH WERNER
IPC: B65D23/14
Filed: 1988-07-23
Abstract: A bottle ring (4) has inwardly directed claws for support on a bottle neck and an outwardly directed spine (5) on which a card (33) can be fitted. In an automatically operating device, a card (33) is removed from a magazine (32) and then fitted onto the spine (5), while the bottle ring (4) is held in a gripper bell (29). The bottle ring (4) is subsequently fitted with the card (33) from above onto a bottle neck by means of the gripper bell (29). <IMAGE>
Patent DE-3827881-A1 (DE)
Title: Circuit for monitoring electrical parameters of a voltage supply
Inventor: SCHOLZ MICHAEL
IPC: H03K17/082
Filed: 1988-08-17
Abstract: A monitoring circuit is proposed for monitoring electrical parameters of a voltage supply for voltage drop, overvoltage and short-circuit, as can be used, for example, in space technology when high reliability is required. If one or both electrical parameters depart from a specified range, then a voltage coming from a high-impedance voltage source becomes active and, via the control electrode (G) of a power metal-oxide-semiconductor field-effect transistor (power MOS-FET) (11) makes the power MOS-FET (11) highly resistive and thereby breaks a supply line (13) leading to the consumer (8).
Patent DE-3827963-A1 (DE)
Inventor: HASEGAWA AKIRA
IPC: A61C13/38
Filed: 1988-08-17
Abstract: The syringe is made of material incapable of transmitting light rays, so that it can contain a light polymerizable resin. It has a die 2 interchangeable with other dies having through-holes 7 of different sectional shapes. The syringe is used in the preparation of dental casting patterns. <IMAGE>
Patent DE-3829398-A1 (DE)
Inventor: NANDI KUMARESH DIPL CHEM DR
IPC: A61K47/12
Filed: 1988-08-30
Abstract: The invention relates to a fixed drug combination containing nifedipine and metoprolol from which the two active compounds are released together, with a time delay, over a period of at least 3 hours up to more than 6 hours.
Patent DE-3834821-A1 (DE)
Title: Optical transmission device for digital signals
Inventor: KAADEN JUERGEN DIPL ING
IPC: H04B10/25
Filed: 1988-10-13
Abstract: In order to connect a number of components of a system with digital signal processing, for example an audio system according to the SAE/EBU format, to one another via optical fibre cables, a multiplicity of cables with associated transmitting and receiving elements is required. It is the object of the invention to achieve the advantages of an optical digital signal transmission inexpensively in a system consisting of a number of components. An optical contact for a transmission of digital signals is established between the individual components by means of aligned optical waveguide rods within a stackable system, which are arranged between the top and bottom of a component. Stackable devices with optical transmission of digital signals. <IMAGE>
Patent DE-3836609-A1 (DE)
Title: Vacuum brake booster
Inventor: JAKOBI RALF
IPC: B60T13/57
Filed: 1988-10-27
Abstract: In order to achieve an essential simplification of the control assembly of a vacuum brake booster with a two-part control housing, it is proposed according to the invention that the two sealing seats (9, 12) of the control valve be formed in the second control housing part (4) and that each be closable by a closing element (8, 11) formed on the first control housing part (2) and the valve piston (16) respectively. <IMAGE>
Patent DE-3838142-A1 (DE)
Title: Device and method for producing thermal energy
IPC: F23C99/00
Filed: 1988-11-10
Abstract: The invention relates to a device for producing thermal energy, which has an elongated reaction space (2) for a hydrogen/oxygen gas mixture flowing through and/or for the combustion product thereof. In this case, provision is made in the reaction space (2) of a plurality of separating elements (3, 3a, 3b) which are made of heat resistant material, arranged at a distance from one another, and, in the region of each separating element, at least one through-flow channel (4) which conducts the gas mixture or the combustion product thereof over the separating element. The separation between at least two of these separating elements (3, 3a, 3b) is dimensioned in such a way that the flames formed between the two separating elements during combustion of the gas mixture heats them to a temperature at which a hydrogen/oxygen gas mixture ignites and/or water vapour is split into hydrogen and oxygen. The device (1) according to the invention converts into heat with high efficiency the energy contained in a hydrogen/oxygen gas mixture used as fuel (cf. Fig. 1). <IMAGE>
Patent DE-3838377-A1 (DE)
Inventor: BRINKMANN ULRICH DIPL BIOL
IPC: C12N15/70
Filed: 1988-11-11
Abstract: An expression enhancer has a DNA sequence which is able after transcription to form a t-RNA cloverleaf structure and hybridises in the region of the DNA which after transcription forms the anticodon loop in the cloverleaf structure with an oligonucleotide of the sequence 5'-GACTTAGAAGGTCGTT-3' or the sequence complementary thereto (5'-AACGACCTTCTAAGTC-3'). It can be used to increase the yield on expression of a recombinant gene by transformation of suitable host cells with an expression vector containing the recombinant gene by likewise introducing it, in a form which can be expressed, and expressing it in the host cells.
Patent DE-3841679-A1 (DE)
Title: Base seals for landfill sites and method of producing them
Inventor: FLEISCHER ERWIN DIPL ING
IPC: E02D31/00
Filed: 1988-12-10
Abstract: The invention relates to a base seal for landfill sites, consisting of a lower asphalt seal and a plastic seal with a drainage layer in between. The plastic seal is made in a seamless manner from liquid plastics. It can be checked and repaired via the underlying drainage layer.
Patent DE-3908660-A1 (DE)
Title: Heating and/or air-conditioning system for a motor vehicle
Inventor: RUIS ALAIN
IPC: B60H1/00
Filed: 1989-03-16
Abstract: The present invention relates to a heating and/or air-conditioning system with an outside-air supply duct (1), divided into a first duct (2) with a first damper (10), which leads to a first outlet opening (3), and a second duct (4), which leads to a second outlet opening (7) and a third outlet opening (8), a passage opening (9) being controlled by a second damper (13), and the said system is characterised in that the second damper (13), when it is situated in an end position (I), prevents the passage of air coming from the heat exchanger (5) to the first duct (2), and in that, in the other end position (III), it prevents the passage of the said air, which is circulating in the second duct (4), to the second and third outlet openings (7, 8). Use in a motor vehicle. <IMAGE>
Patent DE-3913124-A1 (DE)
Title: Fuel nozzle
Inventor: BRUEHWILER EDUARD
IPC: F23R3/28
Filed: 1989-04-21
Abstract: In the case of a fuel nozzle for combustion chambers of gas turbines, the premixing of a liquid fuel with the atomization air (11) passed through the fuel nozzle (1) is undertaken in a premixing chamber (5) which is itself integrated into the fuel nozzle (1). Both the liquid fuel (4) and the atomization air (11) flow through a plurality of tangentially disposed bores (9; 13) into the premixing chamber (5). The fuel/air mixture then leaves the premixing chamber (5) through a plurality of gaps (14) cut in in the circumferential direction of the fuel nozzle (1) and enters the premixing/preevaporating pipe (15) contrary to the flow direction of the compression air (2) prevailing there. <IMAGE>
Patent DE-3915303-A1 (DE)
Title: Two=way optical signal path - includes second station with two I=O windows for optical radiation arranged apart from revolution axis
IPC: G01S3/781
Filed: 1989-05-10
Abstract: The first station (17) sends, reflects and/or receives optical radiation (18,20). The second station (1) sends and/or receives optical radiation fed to the first station about an axis of rotation at an angle corresp to the received max.  radiation intensity. The second station has two input/output windows (11) for the optical radiation arranged at a distance from the axis of rotation (4). Pref. three such windows (11) are provided at the same distance from thee axis of rotation. This distance can be variable. USE/ADVANTAGE - Independent, self-aligning for delivering azimuth and evelation angles, audio and digital signals, but esp. computer-generated image processing. High security against interruption of the radiation path.
Patent DE-3918499-A1 (DE)
Title: Safety valve squeezing elastic tube - has memory metal wire with heat source to pull valve open
Inventor: PIEPER WALTER DIPL ING
IPC: F16K31/00
Filed: 1989-06-07
Abstract: The valve comprises a member (7) urged against a tube wall (3) by a spring (9) and held open by a latch (11). A pull-element (13) to restore the open position comprises a memory-metal element, e.g a wire (13) and an electric current source (17) for heating the element (13). The latch may include an electromagnet (19), which upon switch-off of the current source (17) is supplied with current.  The force-ratio between closure element (13) and hold element (19) is about 10 to 1. USE/ADVANTAGE - Medicinal fluid delivery light and space saving needing small current.
Patent DE-3921457-A1 (DE)
Inventor: NEUHAUS ULRICH DIPL ING
IPC: F16F1/16
Filed: 1989-06-30
Abstract: A torsion bar or stabiliser 2 is accommodated in a bearing 4 and, to ensure that they are secure axially, they rest against abutment 10. The abutment 10 is connected firmly to the torsion bar 2 via a positive connection 12, 13.
Patent DE-3922336-A1 (DE)
Title: Microscopic imaging of thermal and thermo-elastic object structure - using illumination light power regulation to maintain power absorbed by object constant
Inventor: LANDGRAF JUERGEN DIPL PHYS
IPC: G01N21/17
Filed: 1989-07-07
Abstract: The object under investigation is  periodically scanned with a visible, infrared or ultraviolet light beam which is focussed and intensity modulated modulated or pulsed. Mechanical vibrations induced by  the light variation or the periodic variation of optical and thermal measurement parameters are detected and demodulated and the resulting signals stored,  processed and/or displayed. The power absorbed by the object is measured as the difference of the primary radiated power and that reflected and scattered by the object. The measured value is compared with a desired value corresp. to the maximum object loading. The error is averaged and compared with another desired value to produce a primary power control signal whereby the average of the absorbed power is held constant. ADVANTAGE - Image acquisition times for objects with optically inhomogeneous surfaces are reduced, image quality is improved and indentification of thermal and elastic structures facilitated.
Patent DE-3924376-A1 (DE)
Title: Transfer quantity measurement for printer ink removal mechanism - integrating difference values of distances from sensors to undisturbed ink film and ink transfer gaps on ink roller
Inventor: STEINER GERD DIPL ING
IPC: B41F33/00
Filed: 1989-07-22
Abstract: Measurement devices in ink dispensing zones continuously measure the distance to the ink film on an ink roller (1) behind the contact point with a removal roller (6) in the rotation direction. The constant distance to the surface undisturbed by transfer between the rollers is used as a reference in each zone. The colour dosing measurement appts. works using electrodynamic, optical or acoustic sensors. The sensors produce electrical signals indicating the distance between the sensors and the surface of the colour layer on the roller. The profiles of transfer in each zone are determined by integration of distance difference values and multiplied by a rotation speed factor to determine the ink transfer quantity. ADVANTAGE - Accurate measurement of ink transfer between ink and removal rollers in ink printer.
Patent DE-3925767-A1 (DE)
Title: Control procedure for electromechanical relay - using circuit to reduce coil current and maintain switched state after response
Inventor: HEUWIESER ERWIN DIPL ING
IPC: H01H47/04
Filed: 1989-08-03
Abstract: The operation of an electromechanical relay (REC) is controlled by a circuit (SK) isolated from the load circuit (LK) that has a load resistor (LR) and power supply (VL). The control circuit has a control module (ST), supply (VB), switch (S), shunt resistor (RS) and a current reducing stage (SV) that can be a resistor bridged by a switch or a switching transistor. The circuit operates such that if the voltage (VB) and the coil current (IREL) exceed predetermined minimum values, the current is reduced and the armature maintained in a responded condition until a fall to a lower value occurs. ADVANTAGE - Achieves fast response and allows operation at varying voltage.
Patent DE-3928511-A1 (DE)
Title: Overlock sewing machine - has suction tube to remove continuously produced thread chain when not stitching
Inventor: PAPAJEWSKI REINHOLD
IPC: D05B73/12
Filed: 1989-08-29
Abstract: Pneumatic appliance to automatically latch in the thread of an overlock sewing machine, which begins when a new workpiece is introduced to the needles, and by means of a linkage, the thread chain is brought from behind to a position in front of the needles. Pref. separate articles to be overlocked on one edge are repeatedly passed along the sewing table and beneath the pressure foot. The workpiece is trimmed at the edge by the trimmer while sewing proceeds by the needle pair. When the article is complete, the end of the thread is severed by the scissor unit and then the suction tube picks up the continuously produced thread chain from the finger when the linkage moves in the arc to take it away from the sewing point until the next workpiece moves along the table up to the sewing position.
Patent DE-3930316-A1 (DE)
Inventor: GOERG CARMELITA DR RER NAT
IPC: H04L12/40
Filed: 1989-09-11
Abstract: PCT No. PCT/EP90/01525 Sec. 371 Date May 23, 1991 Sec. 102(e) Date May 23, 1991 PCT Filed Sep. 10, 1990 PCT Pub. No. WO91/03897 PCT Pub. Date Mar. 21, 1991.A process is disclosed whereby each of a plurality of stations, transmitting messages segmented into multiple sequential packets, is able to access a transmission channel of a local communications network. A residual packet number is associated with each message representing the number of packets remaining in the message after the instant packet has been transmitted. The number of packet collisions on the transmission channel is reduced by employing a resolution phase, which may be divided into several time intervals. Stations transmit messages with certain residual packet numbers during predetermined time intervals of the resolution phase. A station transmits its next packet after the end of the ongoing transmission if its residual packet number is smaller than the residual packet number of the ongoing message transmission.
Patent DE-3933103-A1 (DE)
Title: Connecting rod especially made of lightweight metal - has a detachable bearing cover on the outside of which is an equalising mass
Inventor: RATHJE VOLKER DIPL ING
IPC: F16C7/02
Filed: 1989-10-04
Abstract: The connecting-rod, has a detachable connecting-rod bearing cover (2). The outside of the cover has an equalising mass (6) made of a different material for equalising the second order  forces. The equalising mass (6) is held by screws (7) separate from and parallel with the fixtures (5) for the connecting-rod bearing cover. USE/ADVANTAGE - The second order momentum is reduced in the case of a lightweight metal connecting rod by using an equalising mass.
Patent DE-3933245-A1 (DE)
Title: GUided-missile fuse safety device - has movable stop pins engaging in grooves in rotary body
Inventor: SPIES HANS
IPC: F42C15/40
Filed: 1989-10-05
Abstract: The safety device is for the fuse of a guided missile, having a rotary body with indexing and engaged by a stop. The latter is controlled by signals from one or more arming sensors. The stop comprises a holder movable in the housing enclosing the body (1) and to which two stop pins (3,4) are fixed. These engage in grooves (2) in the outside surface of the body, and each is coupled to one end of a thruster mechanism anchored to the housing at the other end supplied with current impulses. USE/ADVANTAGE - Safety device for fuse of a guided missile ensures arming only takes place after a predetermined time. (4pp Dwg.No.1/2)
Patent DE-3934082-A1 (DE)
Inventor: GROHE KLAUS DR
IPC: C07D401/14
Filed: 1989-10-12
Abstract: The invention relates to quinolonecarboxylic acid derivatives of the general formula (I) 
<IMAGE>
 in which R, R<1>, R<2>, R<3>, R<5> and A have the meaning stated in the description, process for the preparation thereof and their use as pharmaceuticals, in particular as antiviral agents.
Patent DE-3936744-A1 (DE)
Title: Catalytic oxidative decomposition of halogenated organic cpds. - by passing cpd. mixed with oxygen and gas which burns in oxygen through fluidised bed of catalyst
Inventor: SCHMIDT TORSTEN DR ING
IPC: A62D3/38
Filed: 1989-11-04
Abstract: Process for the catalytic oxidative decompsn of halogenated organic cpds (I) comprises passing a mixt contg (I), oxygen and a gas or vapour (II) which burns exothermically with oxygen through a catalytic fluidised bed. Reaction is carried out at 400-800 deg C using a supported noble metal catalyst and the gas mixt is preheated to not above 100 deg C; (II) is a 1-20C hydrocarbon, and the gas mixt contains at least 1000 (pref 2000-20,000) ppm (II); concn of (I) in the mixt (waste gas is 10-10,000 (pref 100-5000) ppm; residence time in the fluid bed is 0.1-1 sec; part of the heat energy released is removed from the fluid bed; the solids removed in the stream of gas from the process are sepd from the gas and partly or completely returned to the fluid bed if required; in continuous operation, some of the catalyst is removed from the fluid bed and replaced with a corresp amt of fresh catalyst. USE/ADVANTAGE - The process is useful for purifying waste gas from vinyl chloride synthesis and liq residues from epichlorhydrin synthesis (claimed). The invention provides an opt continuous process for the purification of gas mixts contg high concns of noxious substances, wtihout thermal overload or inactivation of catalyst.
Patent DE-3943333-A1 (DE)
Title: Stiffened hollow extruded sections - contains inserted e.g. metal reinforcing strip held in position by suitably causing to swell in infill between itself and extrusion
Inventor: HUEBNER OTMAR DIPL ING
IPC: E04C3/29
Filed: 1989-12-29
Abstract: A hollow extruded section, e.g. of plastics, has an inserted reinforcement of e.g. metal plus a means of locking together this reinforcement and the internal surface of the section. A reactive intumescent material is located between the internal surface of the section and the outer surface of the reinforcing section used, and this material at least partly fills the intermediate space when it has swelled up. ADVANTAGE - The structure contains a firm bond between the extrusion and its reinforcement despite the tolerances in dimensions of both components.
Patent DE-4000954-A1 (DE)
Title: Pulse program generator or frequency divider - has decoders controlling switches that switch resistors into rc cct. of pulse generator
Inventor: CONRAD SIEGFRIED DIPL PHYS
IPC: H03K3/64
Filed: 1990-01-16
Abstract: The program generator has counters and decoders producing pulses whose position and duration define the program. The width of the pulses can be changed at will by altering the resistive component in the pulse generator's RC circuit. This resistive component is a voltage divider whose parts can be bridged as required by using electronic switches. Alternatively, the resistive component in the RC circuit may be altered by switching in resistors. In both cases the switches are controlled from the outputs of the decoders. These decoder outputs may be switched around. The program generator may be used as a frequency divider in which division is achieved by altering pulse width. USE/ADVANTAGE - For frequency divider. Fewer parts. Simpler programming.
Patent DE-4002011-A1 (DE)
Inventor: LAUFENBERG ALFRED
IPC: C07C67/303
Filed: 1990-01-24
Abstract: Saturated branched fatty acids or their esters with C1-C36 alkanols obtainable by the hydrogenation of olefinically unsaturated adducts of ethylene to polyunsaturated fatty acids with 18 to 22 carbon atoms or esters thereof with C1-C36 alkanols in molar ratios of ethylene to fatty acids or fatty acid esters in the range of 1:1 to 3:1 are suitable as lubricant additives.
Patent DE-4002077-A1 (DE)
Title: Window-lifting mechanism driving brake - has pinion spindle coupled to crankpin and rotating in baseplate
IPC: E05F11/50
Filed: 1990-01-25
Abstract: The driving brake is for a window-lifting mechanism, particularly in a car, and has a crankpin (2) with a spindle (10) between it and the lifting mechanism baseplate (1) supporting a driving pinion.  The latter is driven from the crankpin via a mechanism including a driving member coupled to the crankpin, a driving dog coupled to the pinion, and a torsion spring. The spindle is positively coupled to the crankpin and rotates in the baseplate. The driving member consists of a claw (22) integral with the crankpin. USE/ADVANTAGE - Simple low cost and long life window-lifting mechanism in which, with permenant meshing of pinions.
Patent DE-4002876-A1 (DE)
Title: Cyclone smelting process esp. for ore concentrates - using carrier gas to transport solids and enhance vortex in cyclone
Inventor: SCHLEIMER FRIEDRICH DIPL ING
IPC: F27B15/00
Filed: 1990-02-01
Abstract: Fine solids (esp non-ferrous metal ore concentrates) are treated at high temp by feeding into a smelting cyclone while injecting 02-contg gas tangentially through one or more nozzles to to form a vortex in which the solids are smelted, the resulting melt being sepd from off-gas below the cyclone. The pneumatically fed solids are sepd from carrier gas in one or more precipitators and then fed  from above into the cyclone, at least part of the sepd carrier gas being injected tangentially into the cyclone for enhancement of the vortex. Equipment for carrying out the process is also claimed. USE/ADVANTAGE - For smelting sulphidic or even complex Cu ore concentrates for direct recovery of relatively pure copper. Allows solids feed over long distances, provides high smelting rates with minimal cyclone wear and dust losses, has extremely low energy costs and gives almost complete reaction of the individual particles of the solids.