baber/WOPTO huggingface dataset:
Patent DE-3827483-A1 (DE)
Inventor: PERSSON STURE
IPC: F16J15/32
Filed: 1988-08-12
Abstract: Annular seal between for example a piston or a piston rod and a wall surrounding this, which seal comprises a support member and two annular sealing lips, one of which functions statically and the other dynamically, and is designed to have its support member and its static sealing lip located in a recess in one member and to seal with its dynamic sealing lip against the other member. For its function such a seal requires oil mist lubrication but to eliminate this need the dynamic sealing lip (9) and the support member (7) are provided with a low friction layer (11) on their surfaces facing the other member of the device which is connected with and supported by a core of an elastic polymer material, of which the support member (7) and the two sealing lips (9) and (10) are integrally formed. <IMAGE>
Patent DE-3831614-A1 (DE)
Title: Hygienic seat for the disabled
Inventor: WANKE KURT R B
IPC: A47K3/12
Filed: 1988-09-17
Abstract: For the disabled, in particular for wheel-chair users, the invention proposes a hygienic seat with a seat which has two pipes (7,8) on its underside in each case in the marginal region, the pipes being displaceable in the axial direction and interacting with a locking mechanism, as well as guide strips (4a, 4b) which serve to accommodate a trough (6) or a board (3), it being possible to put a cushion that seals the seat opening on the board (3). <IMAGE>
Patent DE-3841897-A1 (DE)
Title: Device for keeping areas of land used for horticulture free of snails
Inventor: KAMPFFMEYER GUENTER DIPL PHYS
IPC: A01G13/10
Filed: 1988-12-13
Abstract: Previously known electric snail protecting walls carry two conductor tracks guided in parallel on an insulating substrate, which are connected to a low voltage source. This arrangement is sensitive to bridging of the conductor tracks, for example by acid rain, plants or snails, because the current source is thereby quickly discharged or destroyed. A cost-effective device is needed which also works reliably in the rain. In the innovation, the protective wall carries a single conductor track along its upper edge, which is connected with respect to earth to a pulse generator. If a snail tries to cross the protecting wall, it completes the current loop on the edge with its moist trail and is prevented from creeping further. The average current consumption can be kept very small, even in the case of a short circuit between conductor track and ground. The pulses consist of high frequency wave trains and are not dangerous to humans. The new device is intended to be used in horticulture.
Patent DE-3842373-A1 (DE)
Title: Transporting vehicle for bridges or bridge sections of a dismountable bridge
Inventor: KINZEL WALTER
IPC: E01D15/127
Filed: 1988-12-16
Abstract: A vehicle for transporting bridges or parts of a dismountable bridge has hydraulically or pneumatically actuable devices, by means of which the bridge parts lying next to one another during transportation can be laterally displaced into coupling and mounting position, and by means of which the bridges or bridge sections can be brought into a position for transfer to a mounting vehicle or can be lifted or lowered for coupling to further bridge sections situated on a mounting vehicle.
Patent DE-3843225-A1 (DE)
Inventor: GROSSE-PUPPENDAHL THOMAS
IPC: C08J5/12
Filed: 1988-12-22
Abstract: The object of the invention was to develop a further process for the production of a solvent-resistant composite comprising thermoplastic moulding compositions and rubbers. 
<??>The process according to the invention comprises covulcanising a rubber composition comprising a carboxyl-containing rubber, a peroxidic vulcanisation system and optionally further components, with a thermoplastic containing at least 30 % by weight of thermoplastic polyesters. 
<??>The materials obtained by this process are preferably employed as composite materials.
Patent DE-3901946-A1 (DE)
Title: Modified cellulose for biocompatible dialysis membranes III and process for production thereof
Inventor: DIAMANTOGLOU MICHAEL DR
IPC: B01D71/10
Filed: 1989-01-24
Abstract: Modified cellulose for biocompatible dialysis membranes which has a structure represented by the formula <IMAGE>  in which     Cell is cellulose or chitin, in each case without hydroxyl groups,   s is 3 in the case of cellulose and 2 in the case of chitin, and   R' is CH3 and/or C2H5 and/or C3H7,   X is defined functional groups, and   R''' is R,   x + t is 0.75-2.85   t is 0-2.85,   x is 0-2.85   r is 0-1.   A process for the production of the cellulose derivatives is also claimed.
Patent DE-3903925-A1 (DE)
Title: Safety belt arrangement for the occupants of motor vehicles
Inventor: SEDLMAYR ANDREAS
IPC: B60R21/01
Filed: 1989-02-10
Abstract: In the case of a safety belt arrangement for the occupants of motor vehicles having at least one belt retractor with a self-locking blocking mechanism with a control mechanism for making a locking element adapt a blocking position which prevents further extraction of the belt, the belt retractor response times are to be reduced. To achieve this, provision is made for a vehicle computer (20) to be provided which determines the degree of acceleration of the motor vehicle and is coupled to the control mechanism (14) of the belt retractor (10) and for the locking element to be made to adopt the blocking position or returned to the rest position via the control mechanism (14) on receipt of a signal emitted by the vehicle computer (20). <IMAGE>
Patent DE-3905413-A1 (DE)
Title: Detachable mounting for a rest or the like
Inventor: BREMM KLAUS
IPC: A47K1/08
Filed: 1989-02-22
Abstract: The invention relates to a detachable mounting for a rest or the like on a wall. A rest-mounting part and a wall-mounting part fit positively into each other and are secured in this position by an engagement securing means.
Patent DE-3909161-A1 (DE)
Inventor: MENZEL SIEGFRIED DIPL ING
IPC: H01L21/31
Filed: 1989-03-21
Abstract: A gas inlet and discharge attachment for CVD processes, in particular for the inlet of process gas into a reaction chamber for plasma-assisted deposition of materials on the surface of semiconductor substrates and also its discharge from the reaction chamber, makes the inlet and discharge of process gas through a number of systems, arranged in a basic body 1, of hollow needles 5 in recesses 6 through which needles, on the one hand, the process gas is fed in finely distributed form onto a semiconductor wafer arranged at a short distance opposite the basic body and, on the other hand, is extracted immediately after the reaction through the recesses corresponding to the hollow needles. The advantages of the attachment emerge, in particular, in a homogeneous layer distribution and also in an improvement of the cleanliness in the process chamber. Parasitic hollow cathode discharges can be avoided by choosing appropriate diameters of the needles and the recesses. Cooling channels 9 are provided in the lower region of the basic body which are connected to a coolant inlet 10 or outlet 11. <IMAGE>
Patent DE-3910295-A1 (DE)
Title: Cutting material support
Inventor: BIERVERT KLAUS
IPC: B26F3/00
Filed: 1989-03-30
Abstract: The invention relates to a cutting material support of a workbench for cutting flexible materials, which is distinguished in that at least part of the surface is adhesive. This adhesion can be obtained in a very simple manner by applying a slowly evaporating glue. As a result, a flexible, three-dimensional material to be cut, for example an animal skin, can be fixed securely on the cutting material support during the cutting process. This is advantageous in particular when using non-mechanical cutting tools, for example an ultrahigh-pressure fluid jet cutting installation, since by this means a uniform distance of the material being cut from the cutting nozzle is always ensured during the cutting process and, as a result, a perfect cutting contour is achieved. When cutting slack and pliable materials, wrinkles are prevented as long as the adhesion forces are greater than the feed forces produced by the cutting tool and acting on the material being cut.
Patent DE-3914792-A1 (DE)
Title: Vehicle drive with engine and cone pulley stepless drive - has power-dependent clutch regulated by adjusting element with hydraulic system and control value to produce required  transmission ratio
Inventor: RATTUNDE MANFRED DIPL ING
IPC: B60W30/18
Filed: 1989-05-05
Abstract: Sensing units (31, 32, 33, 30, 40) are respectively provided for the engine rpm, the gear unit input rpm and output rpm, the throttle valve setting of the engine.  the adjustment of the accelerator pedal, the alteration of this setting over time, the displacement path of one of the displaceable cone pulleys (13, 14) and the kick down position of the accelerator pedal. The values determined by the sensing units are supplied to a control and computer unit (35). The operation of the adjusting element (24), the preloading valve dependent on the load, gear ratio and engine rpm as well as the adjusting element (43) of the clutch (3) is controlled in such a manner, that the slip torque of the clutch is continuously smaller than that of the tension medium (17) at the cone pulleys (11, 12). ADVANTAGE - Drive with light transmission which nevertheless has sufficiently quick reacting pressure system.
Patent DE-3916513-A1 (DE)
Inventor: TIBKEN MARTIN
IPC: B60T8/173
Filed: 1989-05-20
Abstract: An antiskid system based on a new regulation concept calculates a vehicle reference speed which is determined from the pulse width modulated control of the pressure modulator. The corresponding ideal slip for each wheel is calculated using a slip control and adjusted by means of an analog control circuit. The ideal slip almost invariably ensures optimal braking deceleration combined with high vehicle stability. The analog regulation profiles prevent marked pressure fluctuations in the case of a uniform background. The driving comfort is thus considerably enhanced in comparison with conventional systems and the load on the suspension substantially reduced. The sharp decreases in wheel speed due to the slip modulation are minimized by suitable adjustment of the controller.
Patent DE-3919781-A1 (DE)
Title: Cold gas thrust generation system e.g. for satellite positioning - has concentric control and regulating nozzles and opposed regulating nozzle
Inventor: FRIEBEL WOLF-CHRISTOPH DR ING
IPC: F02K9/88
Filed: 1989-06-16
Abstract: A cold gas thrust generation system contains two independently operating cold gas thrusters, one produces a controlled thrust and the other a regulated one. The controlling and regulating nozzles are arranged concentrically. The nozzle generating the greater thrust, usually the control nozzle is an annular nozzle. Directional reversal of the regulating thrust can be achieved by a second regulating nozzle mounted opposite the first. USE/ADVANTAGE - E.g. for use in positioning motors for satellites. Has regulating thrust essentially smaller than for system with single regulated nozzle.
Patent DE-3923529-A1 (DE)
Title: Multiple cylinder radial piston pump - makes use of fluid storage chamber to damp out pressure pulsations
Inventor: LISKA GEORG
IPC: F04B1/053
Filed: 1989-07-15
Abstract: Radial piston pump having an eccentric (5) mounted on a drive shaft (6) which activates a single piston (7) and a set of pistons (8) arranged in a star-shaped formation around the shaft.
Patent DE-3924663-A1 (DE)
Title: Controlled slow delivery of concn. aq. soln. - via barriers sepd. by fatty materials
Inventor: ARNDT HELGE
IPC: A61L27/54
Filed: 1989-07-26
Abstract: Solid material (2), esp. for medicinal or biological use, is held in a plastic container (1) and is in contact with solvent, esp. H2O, which becomes satd. with solid taken into soln.  The soln. is sepd. by a diffusion barrier (9) from a tube full of material, (6), of fatty nature, which permits only slow transfer of soln. to a further diffusion barrier (7) barring access to an external destination, (10) which may be part of a patients body or mouth. The two barriers may be parts of a single structure, and be adjustable mechanically/electrically/magnetically to amt. supplied.  The numerous variations of the basic concept include delivery of multiple materials, provision of refill supplies, and many types of delivery mechanism adapted to skin, arteries etc. of patients. USE - For continuous precisely controlled delivery, esp. at slow rates.
Patent DE-3927499-A1 (DE)
Title: Eddy current tube testing by aligned coils - coupled with saw-tooth generator supplying data to coordinate writer
Inventor: JACOBI OTTO
IPC: G01N27/90
Filed: 1989-08-21
Abstract: A tube to be non-destructively tested for defects and/or inclusions by eddy currents is passed through the aligned annular test coils coupled with an AC source with adjustable frequency and amplitude. The coils are linked with resistances to form a test bridge and emit signals proportional to amplitude and phase retention of the coils. To these signals is added a voltage proportional to the length of test-piece which has passed through the coils. The combined signal is applied to the input terminal of an x/y coordinate writer to produce representation of the inductive behaviour of both coils. The amplifier used includes a Saw-tooth generator. USE - Provides reliable information on nature, position and structure of anomalies, e.g. in fast-breeder reactor tubes.
Patent DE-3931996-A1 (DE)
Inventor: FOULGER ROBERT JAMES
IPC: H01L23/06
Filed: 1989-09-26
Abstract: An apertured sheet of ceramic is bonded to a base sheet of ceramic to form an array of open cavities, in each of which a semiconductor element (10) is mounted. The base sheet carries a pattern of electrically conductive tracks (5, 6, 7) to which the semiconductor element is connected and the tracks are connected to plated-through holes (41, 42, 43) extending through the thickness of the base sheet. The elements are then tested, and the cavities sealed with a common lid. The sheets are diced to form a plurality of separate devices, the sheets being cut along the center lines of the plated-through holes, so that the conductive surfaces thereby exposed can be used to mount the devices on printed circuit boards. <IMAGE>
Patent DE-3932984-A1 (DE)
Title: Stereophonic audio signal reproduction system - has front and rear speakers operated in different modes by selectors
Inventor: TASAKI AKIRA
IPC: H04S3/00
Filed: 1989-10-03
Abstract: The stereophonic sound reproduction system operated in a Dolby (RTM) mode has the two input stereo channels coupled to a processor circuit (1). Outputs are made to a pair of forward loud-speakers (24L, 24R) and a pair of rear loud-speakers (25L, 25R), together with a centre loud-speaker (26C). With the exception of the rear right and centre speakers, all units are fed directly from drive amplifiers (21, 22, 23).  A switch (4) allows signals to be selected that is gated through a second switch to either of the two speakers (25R, 26C). ADVANTAGE - Allows changeover between reproduction modes.
Patent DE-3936145-A1 (DE)
Title: Furniture assembly for wardrobe or shelving - consists of three spaced vertical panels with shelves
Inventor: BRANDES HERMANN
IPC: A47B81/00
Filed: 1989-10-31
Abstract: The furniture wardrobe or shelving wall has at least three spaced vertical panels (16) as outer walls or partitions.  A top shelf (20) is joined to the top edge (38) of the vertical panels (16).  Shelves (26) are inserted between two adjacent vertical panels. The top shelf (20) consists of several top panels (18) detachably joined at their facing side edges (34,36) near the top edges of the vertical panels. USE/ADVANTAGE - The furniture kit enables the piece of furniture such as wardrobe to be adapted to the slope of the roof without previous measurement and without special tools.
Patent DE-3936645-A1 (DE)
Title: Streamlined rail vehicle front end - has front flow section to reduce side air turbulence
Inventor: SCHUELER ERICH
IPC: B61D17/02
Filed: 1989-11-03
Abstract: The rail vehicle has a superstructure, with a correspondingly-shaped frame- to ring-shaped flow-in section in front of it. The base of the section merges concave into the front of the superstructure and convex into the superstructure roof. The section side walls are connected at the front to a short roof surface, and there is a distance between the rear edge of this surface and the superstructure roof. The roof surface has a flow profiled cross-section (7) like an inverted hydrofoil or aircraft wing. USE - Streamlined front end for railway train. Dwg.No.2/15)
Patent DE-3937807-A1 (DE)
Title: Data exchange between two transmitting and receiving stations - involves directional transmission and reception signals conveyed by acknowledgement line and starting line between microprocessor interfaces
Inventor: MANZ DIETMAR
IPC: G06F13/42
Filed: 1989-11-14
Abstract: The link between the stations (1,3) requires an earth line (4), a serial data line (6), two acknowledgement lines and a starting line. The data line (6) joins corresp. nodes (15) of transmission and reception line interfaces (10,11) at the collectors (23) of grounded-emitter bipolar transistors (21). Signals are supplied from microprocessor output lines (19) to the bases (20) of the respective transistors (21), and the voltages developed across resistive loads (14) are amplified (17) for application to microprocessor input lines (18).  Readiness signals are sent from the receiving station, and valid data bit commencement signals are received from the sending station, over the acknowledgement lines. USE/ADVANTAGE - Esp. between microprocessors interconnected by at least two lines. Either serial or parallel data  transmission is possible in both directions without asynchronous transmitter/receiver components.
Patent DE-3937938-A1 (DE)
Title: Steerable rigid axle for tractor - uses secure method of joining axle to chassis
Inventor: HAUPT JOSEF
IPC: B60K17/22
Filed: 1989-11-15
Abstract: The steerable rigid axle (7) is mounted on the chassis of a tractor. The chassis, at least in the part housing the engine (2), flywheel housing (3) and transmission (4) is formed as a block spring-braced against the axle. The thrust tube (8) of the axle is led through a tunnel-like recess (11) in the oil sump (10) of the engine and the counter bearing (9) is provided at the oil sump in the region of the screwed joint with the flywheel housing. USE/ADVANTAGE - The rigid axle is used on a tractor. The thrust tube is so arranged that the ground clearance and the max.  steering lock of the tractor are not impaired.
Patent DE-3938409-A1 (DE)
Title: Universal sensor operating circuit - has generator, waveguide, output-coupling and antenna
Inventor: KRETSCHMER WILFRIED
IPC: H03H7/38
Filed: 1989-11-18
Abstract: A circuit for operating a universal sensor, consists of a sensor, a waveguide, an output-coupling and an antenna.  The antenna is arranged as a series discontinuity between the generator and the output-coupling, where the real part (RA) of the antenna impedance (ZA) is large compared to the real part (R1) of the transformed impedance (Z1). Likewise the real part (RA) is large compared to the wave impedance. The imaginary part of (Z1) is so large that it is cancelled out by the imaginary part of the resulting antenna impedance by the presence of an object to be measured. USE/ADVANTAGE - Measures all physical entities that can affect reflection factor of electromagnetic waves, without any changes to basic circuit.
Patent DE-4000884-A1 (DE)
Title: Electrohydraulic lithotripic system - breaks-up stones in body using pressure wave produced by spark discharge between probe electrodes
Inventor: BOLG ULRICH
IPC: G10K15/06
Filed: 1990-01-13
Abstract: The system has a probe to break-up the accretion. The probe produces an electric discharge between electrodes at its distal end. A control indicates and regulates the discharge and includes a discharge circuit (containing an energy store), an hv switch and a drive circuit (to control the hv switch). Those parts of the control forming the spark discharge circuit (3) and the line (19) connecting the probe (4) to the discharge circuit and/or the probe itself (4) have a very small inductance. A separate casing (13) encloses the control (1), the discharge circuit as a whole or its parts such as energy store (15) and/or hv switch. The line (19) joining energy store and control acts as an extra store of energy. USE/ADVANTAGE - For electrohydraulic lithotripsy. Energy used to form poressure impulses is reduced without reducing effectiveness.
Patent DE-4007590-A1 (DE)
Title: Clamping mechanism for workpiece - has driving member acting on control face on lever containing elongated guide hole
Inventor: HEBERLE MANFRED
IPC: B25B5/06
Filed: 1990-03-09
Abstract: The clamp has a drive mechanism in a body and actuating a lever holding a workpiece in a fixed position on a baseplate. The lever (2) has a control face (24, 25) working with a driving member actuated by the mechanism, also an elongated hole (8), by which it engages with a stationary guide for sliding and tilting movement. A guiding stop (5) for the lever is mounted above it. USE/ADVANTAGE - A workpiece, particularly of sheet-metal, can be placed on a table from the top unhindered, and removed  in the same direction.
Patent DE-4019205-A1 (DE)
Title: Packaging for e.g. domestic appliances - comprises stable reusable individual parts
Inventor: SEWERIN HEINRICH
IPC: B65D6/02
Filed: 1990-06-15
Abstract: Multi-use packaging for domestic appliances consists of a base, a lid and a case. (a) the case (4) is a stabilising element forming the side faces of the packaging (1) and is pref. formed from chipboard, plastics sheet, corrugated cardboard, etc. (b) the base (2) and lid (3) consist of similar materials nad have similar dimensions, and (c) the case (4) is positioned between the base and lid to form a shape-stable hollow body which is held together by additional fixing elements, e.g. wrapping tape, plastics foil, fasteners or the like, and which pref. contains a padding (E) e.g. of polystyrene or cardboard. USE/ADVANTAGE - The packaging has reduced material costs, is stable without requiring additional stabilising elements and consists of reusable individual parts.
Patent DE-4022468-A1 (DE)
Title: Equaliser for digital signals in wideband network - uses 2 parallel amplifiers connected directly and via high-pass filter to output summator
Inventor: SCHMITT VOLKER DR ING
IPC: H04L25/03
Filed: 1990-07-14
Abstract: The equaliser feeds the digital input signals to an amplifier (V1) and to a variable amplifier (V2) in series with a high-pass filter (HP). The outputs of the first amplifier and the high-pass filter are fed to a summator (S) providing the circuit output. Pref., the equaliser has at least two successive stages, each with two amplifiers, a high-pass filter and a summator. ADVANTAGE - Suitable for high data transmission rates of at least 155 Mbit/s.
Patent DE-4023306-A1 (DE)
Title: Controllable air mixer unit - has hollow rotatable drum with variable width aperture in its periphery into which at least two separate air streams feed
Inventor: BECKER JUERGEN
IPC: B60H1/00
Filed: 1990-07-21
Abstract: The vehicle heating and/or air conditioning system has a controllable mixer unit for at least two air stream (6,7). The mixer unit has a rotatable, hollow cylindrical drum (1) with a variable width aperture (10) formed over a section of the drum periphery. The two air streams (6,7), separated by a partition wall (3,4), are fed to the drum outer periphery. USE/ADVANTAGE - Accurate air mixing in a compact unit for vehicle heating and air conditioning.