baber/WOPTO huggingface dataset:
Patent DE-4136852-A1 (DE)
Title: Ion exchange vessel - has dividing walls to contain ion exchange resin in segments for fluid to be treated to flow in one direction and regenerating fluid flow in opposite direction
Inventor: SCHULER HANSJOERG DIPL ING
IPC: B01J49/05
Filed: 1991-11-08
Abstract: To charge and regenerate ion exchange resins in an ion exchange assembly, successive fluid counter flows give the charge and regeneration action. The fluid for charging and the fluid with the regeneration medium are fed to the vessel which has inner dividing walls in the axial flow direction to give a number of parallel segments filled with the ion exchange resin. The inner dividing walls are circular and coaxial, on the axial flow line within the vessel, to give parallel segments with a ring-shaped cross section filled with ion exchange resin, with an increasing radius towards the vessel wall. The dividing walls can also be as spokes, to give arc-shaped segments, or the dividing walls can form a honeycomb. The charging flow, by the fluid being treated, moves upwards, and the regeneration flow is directed downwards, or vice versa. USE/ADVANTAGE - The ion exchanger is used in water treatment applications. The ion exchange resins do not become mixed or dispersed, even with high flow speeds. The regeneration medium is used more effectively, with reduced regeneration times.
Patent DE-4141102-A1 (DE)
Title: Efficient degassing extruder cascade - has separate drives for two extruders, passes melt from first to degassing chamber in second, and regulates first screw by pressure in second
Inventor: HANISCH MICHAEL DR
IPC: B29C48/92
Filed: 1991-12-13
Abstract: An extruder cascade consists of two successive but separately driven extruders with a vacuum degassing chamber between; this chamber is in the inlet area adjacent to the drive in the second extruder and is passed through by the flight on the screw of the second extruder, the degassing outlet being at the drive end of the second extruder. The plasticated material (plastic material is particular) is fed into the degassing chamber through a slotted die or a series of perforations in part or the whole of the circumference of the bore of the barrel. ADVANTAGE - The design feeds the plasticated/fused melt into the degassing chamber in such a way that it is degassed rapidly and effectively (in contrast wth existing designs where the material is compacted and has little surface area when it reaches the degassing chamber)
Patent DE-4141241-A1 (DE)
Title: Multi block robot system with current and data channels - features rotary flange plug connector and multi block housing which can function interchangeably as stator and rotor
Inventor: KOCHANNECK UWE
IPC: B63H23/24
Filed: 1991-12-14
Abstract: In addn. to robot block standard sections (1) with drive motors, attached to the outer walls of the current supply and data transmission channels (3), sections are used which themselves form the core of a motor and are surrounded by interior windings (8"). These are sepd. by the necessary air gap from outer windings (8') in a housing (19) contg. slip rings and inductors (10',10"), rotatable about the channels (3) on ball bearings (20) and fixed to the block (9) with an intermediate ring (21). ADVANTAGE - Flexibility and breadth of application are extended, and bulk of system is reduced.
Patent DE-4200917-A1 (DE)
Title: Temp. compensated drive shaft mounting - includes compensation element pref. contg. thermally expandable plastics
Inventor: HILLGAERTNER KLAUS
IPC: F16H57/02
Filed: 1992-01-16
Abstract: In a vehicle drive shaft mounting in a drive housing having a higher thermal expansion coefficient than that of the drive shaft, a compensation element (17), which thermally expands by a similar amount to that of the drive housing (1), is fixed between a fixed bearing (10) and an offset region (12) of the drive shaft (2). Pref. the compensation element (17) consists of a metal cup (19) filled with a plastic expandable material (18), pref. conditioned polyamide or FPM (Viton), covered by a metal disc (20) which can move within the cup. ADVANTAGE - The compensation element provides temp. compensation by pulling the drive shaft (steel) in one direction by the same amount as the.
Patent DE-4214748-A1 (DE)
Title: Hole-cutting saw with teeth on hollow cylinder side - has centring drill in form of spirally threaded drill at its end protruding from hollow cylinder
Inventor: LENK THOMAS
IPC: F16L41/04
Filed: 1992-05-04
Abstract: The saw has a hollow cylinder (1), toothed at one side, and a concentric, centring drill (3) whose tip protrudes over the cylinder end with the teeth (7). The drill has a spiral cutting edge (5). The latter is formed at the drill end protruding from the hollow cylinder. Pref. the drill cutting edge is spaced from the hollow cylinder edge, e.g. by 50 to 11 mm. The dia. of the drill stem, between the cutting edge and the hollow cylinders in less than the dia. of the drilled bore in the portion to be cut out. USE/ADVANTAGE - Saw with teeth on hollow cylinder side cuts holes of dia. in excess of 16 mm in hard metal, preventing the cut-out material from dropping into the worked pipeline, or container.
Patent DE-4215444-A1 (DE)
Title: IC with analog and digital stages - has portion for level matching analog stage to digital stage, with coupling capacitor
Inventor: KROEBEL HANS-EBERHARD
IPC: H01L27/02
Filed: 1992-05-11
Abstract: The integrated circuit has at least one analog (1) and digital stage (2) with a portion (3) for level matching of an analogue to a digital stage with following components. The output (A) of the analog stage is coupled to the input (E) of an input amplifier (EV) of the digital stage by a capacitor (C). A reference voltage element (RSG) generates a mean voltage (UMIT) for the input amplifier of identical design as that of the digital stage. The reference voltage element is coupled to the input of the digital stage input rectifier by a high-ohmic, low-capacitance coupling element (VG). USE/ADVANTAGE - For digital processing e.g. A/D converter, PLL stage etc.. Simple adjustment of input amplifier working point to optimum level.
Patent DE-4216242-A1 (DE)
Title: Identification method for sensors or actuators in bus system - having each sensor or actuator connected to bus via modular interface unit with switch
Inventor: KELLER REINHARD
IPC: G05B19/042
Filed: 1992-05-16
Abstract: The identification method utilises sensors (4) and actuators (4) controlled by a computer unit (3) which is also connected to the bus system (1). The sensors and actuators are connected to the bus lines via a modular interface unit (6). Each modular interface unit is assigned to at least one sensor or actuator. The sensor or actuator includes a switch (7). After operation of the switch an identification is sent from the computer unit to the modular interface unit assigned to the sensor or actuator. ADVANTAGE - Sensors and actuators connected to computer unit are quickly and simply identified and can be exchanged if necessary.
Patent DE-4216450-A1 (DE)
Title: Packaging for food item with filling material between baked covers - where airtight package has internal container for filling material which is automatically released when packaging is removed
Inventor: STRASER JOSEF
IPC: A23P20/20
Filed: 1992-05-19
Abstract: A new food packaging has the novel feature that at least one removable container (7) is provided in the space (6) enclosed by the package (4) and is emptied by the removal of the package. Also claimed is a food product for use with the package, consisting preferably of baked support elements (1) between which is a space for a filling material (3). The internal container is located in this space and releases the filling when the packaging is removed. USE/ADVANTAGE - In preparation of fast-food products. The insertion of the filling at the point of sale is avoided and the convenience and hygiene of the product are therefore increased.
Patent DE-4222338-A1 (DE)
Title: Flat esp. cylinder head seal for IC engines - has at least one cover increasing sealing pressure, made of metal plate
Inventor: JOST WERNER DIPL ING
IPC: F16J15/12
Filed: 1992-07-08
Abstract: The cover (5) is made of a memory metal alloy, such as nickel and titanium, or copper, aluminium and zinc, or copper, aluminium and nickel, or chromium, nickel and steel, or a manganese and silicon alloy steel. In the case of a cylinder head (7) seal, the cover made of a memory metal plate rests between two adjacent combustion chamber openings (3,4) in the seal flange part (2). The cover consisting of a memory metal plate has ridges on (6). USE/ADVANTAGE - The flat seal provides a seal over a wide temp. range with changing temp. stress, even in critical conditions.
Patent DE-4225584-A1 (DE)
Title: Thickening of water to increase viscosity
Inventor: BUIL JUERGEN
IPC: A62D1/00
Filed: 1992-08-04
Abstract: The prepn. of thickened water comprises slurrying 1-9 wt.% highly dispersed synthetic esp. pyrogenic silica acid in water, adding only a small amt. of additives, the additive being 0.05-0.5 wt.% poly(N-vinyl-2-pyrrolidone) (PVP).
Patent DE-4225957-A1 (DE)
Inventor: NAGY ADALBERT DR ING
IPC: C02F1/461
Filed: 1992-08-06
Abstract: Liquids such as waste water are clarified in a compact unit consisting of a conditioning stage and of a solid/liquid separating stage. In order to allow the liquids to be clarified as completely as possible in a coherent step, the downward flowing suspension under the influence of gravity is forcibly subjected to a substantially vertical acceleration superimposed on the force of gravity. Preferably, the suspension is subjected to a combination of mechanical, magnetic and electric forces. Consequently, not only a largely complete clarification of the liquid is obtained, even when said liquid entrains the most different groups of substances, but also the dwelling time during the solid/liquid separation is shortened, and the dimensions of the clarification reactor are relatively reduced.
Patent DE-4230892-A1 (DE)
Inventor: BERGER PETER W DIPL ING
IPC: F16L1/028
Filed: 1992-09-16
Abstract: The invention specifies a method of laying portions of district-heating lines in the earth without excavation, in the case of which method, in a manner known per se, a smooth-walled casing pipe (6) is laid without excavation and, subsequently, a medium-channelling pipe in the form of a corrugated metal tube (7) with a heat-insulating layer (11), which encloses the said tube and whose external diameter corresponds essentially to the internal diameter of the casing pipe, is drawn into said casing pipe by pulling means which act, at least in certain locations, on the unit made up of medium-channelling pipe and/or heat-insulating layer, over the entire longitudinal extent thereof. The invention further specifies such a district-heating line laid without excavation, and equipment for implementing the method. <IMAGE>
Patent DE-4235415-A1 (DE)
Title: Arrangement for automatic measurement of surface tension - of solns over concentration range using temp-controlled measuring vessel and soln dilution system
Inventor: HARTMANN RAINER
IPC: G01N1/38
Filed: 1992-10-21
Abstract: Concn.-dependent surface tension of solns., partic. surfactant solns., is automatically measured in an arrangement of a thermostatically controlled measuring vessel (1), contg. soln. (3) at max. concn., to which solvent is supplied via a supply capillary (4) with ground end (9). A suction capillary (5) maintains constant soln. level in the vessel. A measuring body (6) is moved vertically and force exerted by the soln. is measured. ADVANTAGE - Accurate measurement over wide concn. range easily cleaned equipment.
Patent DE-4239559-A1 (DE)
Title: Portable power tool, e.g. circular saw, with spindle lock for tool changing - has socket spanner with spigot that passes through bore of clamping screw and spindle and automatically locks spindle by entering locking hole on pitch circle of motor cooling fan
Inventor: SPENGLER WOLFGANG
IPC: B24B23/02
Filed: 1992-11-25
Abstract: The socket spanner (21) for tightening or releasing the tool clamping screw (17) has a spigot (25) that passes through a central bore (29) of the screw and spindle and enters one of several locking holes (31) on a pitch circle of the motor cooling fan (8). In this position, the spanner simultaneously engages the locking hole and clamping screw. The fan is on the motor shaft (7), which is offset from the machine spindle by the centre distance of the final drive gear pair (10, 11). Thus, when the spigot of the spanner enters a locking hole (31), the spindle is automatically locked against rotation. USE/ADVANTAGE - Simple, low-cost design of power tool permits convenient one-handed operation.
Patent DE-4240690-A1 (DE)
Title: Ultrasonic transducer for contactless liquid level measurement - contains low impedance electroacoustic vibrator with frequency matched to container wall thickness
Inventor: WAGNER GERHARD
IPC: G01F23/296
Filed: 1992-12-03
Abstract: The transducer contains a low impedance electroacoustic vibrator (4) whose ultrasonic vibrations are passed through a high impedance container wall into a liquid-filled container. The frequency of the wideband vibrator is matched to the thickness of the container wall.  An intermediate, high impedance plate is attached to the wall.  Its thickness with that of the wall makes up the total wall thickness. USE/ADVANTAGE - For contactless measurement of the liquid level in a container through the container wall.
Patent DE-4243622-A1 (DE)
Title: Radio receiver with memory holding reception frequencies
Inventor: LERCH DIETMAR
IPC: H04B1/16
Filed: 1992-12-22
Abstract: The radio receiver has a memory (MEM) in which information groups (IF1.1,..,IF.k; IF2.1,..,IF2.m; IFx.1,..,IFx.n) for the different reception frequencies are held. The memory is coupled to a processor (CPU) employing a control programme for tuning the receiver to each frequency within a selected information group, in response to a corresponding input command.The reception quality of each successive frequency is measured and the receiver is tuned to the frequency with the best reception quality. The reception quality of the reception frequencies is determined from their measured field strengths.
Patent DE-4305695-A1 (DE)
Title: Device for removing or inserting lamps to which screens have been fitted at the front
Inventor: REISEN WILLY
IPC: H01K3/32
Filed: 1993-02-25
Abstract: The invention proposes a device which makes it particularly easy to remove lamps to which protective screens have been fitted at the front, from the lamp holders or to insert them therein.
Patent DE-4306782-A1 (DE)
Title: Whirlpool bath tub
Inventor: BLAAUWWIEKEL HARM
IPC: A61H33/00
Filed: 1993-03-04
Abstract: The invention relates to a whirlpool bath tub which comprises a supply device forming an air outlet nozzle and/or a water outlet nozzle for generation of an air jet and/or a water jet in the tub water, as well as means for cleaning and/or disinfecting the pipeline system for the air and/or the water. The air pipeline system including the air outlet nozzle and/or the water pipeline system including the water outlet nozzle can be flushed with hot air, and the air outlet nozzle and/or the water outlet nozzle is or are sealed in the periods of rest between the operative phases and the cleaning phases.
Patent DE-4315260-A1 (DE)
Title: Multichannel multiplex data transmission controller with status memory - has branching signal lines for connecting peripheral memory to transmission processor with software-implemented upper transmission layer.
Inventor: IMAI SHUNJI
IPC: H04J3/00
Filed: 1993-05-07
Abstract: A central controller (3) reads, modifies and writes control and status information and transmission/reception data for a selected channel while controlling its transmission and reception data selectors (4,5) and number counter (6), data storage address counter (7), cyclic redundancy check and parity calculator (8), data multiplexer/demultiplexer (9) and address multiplexer (10). The information and data for each channel are stored in a peripheral memory (2) and, when a channel number is entered, the foregoing information is read, modified and rewritten sequentially. USE/ADVANTAGE - With sync. and high-level data link control protocols, transmission is accomplished with low hardware complexity.
Patent DE-4315739-A1 (DE)
Title: Process for the biological treatment of contaminated soils
Inventor: LANG UDO DIPL ING
IPC: B09C1/10
Filed: 1993-05-11
Abstract: A process is described for the biological purification of contaminated soils. According to the invention the fine-grained portion is separated off from the soil and only this fine soil portion is fed via line 2 to a reactor 1. The fine soil portion is mixed with water which is fed via line 3 to form a suspension. The suspension is set into turbulent flow in the reactor 1 which, for example, can be operated as an air-lift reactor. In addition, an oxidising agent, in particular an oxygen-containing gas, is fed to the reactor 1 via line 5 and dissolved in the suspension. Because of the high phase transfer rate which can be achieved by the process according to the invention of the pollutant from the low bioavailability state bound to the fine soil portion into a solubilised state having high bioavailability, a high volume-specific degradation performance is achieved. <IMAGE>
Patent DE-4316978-A1 (DE)
Title: Edges of parts enamelled on both sides
Inventor: OTTE SIEGFRIED
IPC: B01F7/00
Filed: 1993-05-21
Abstract: The invention relates to the edges of enamelled parts such as agitator and baffle blades, immersion tubes and pump impeller blades, perforated plates and shells which are enamelled on both sides of the wall over one or more contour or opening edges. The aim of the invention is to guarantee the adhesiveness of the enamel on these edges. This is achieved according to the invention by the parts being edged with thin-walled cavities of circular, drop, U, V or other shape, which have been connected to the atmosphere by a duct or have been evacuated, it being possible to vary the wall thickness of said hollow cross-sections within given limits. The area of application of the invention is enamelled devices and equipment. <IMAGE>
Patent DE-4319827-A1 (DE)
Title: Faraday rotator
Inventor: DIEDRICH FRANK DR
IPC: G02F1/09
Filed: 1993-06-16
Abstract: The invention relates to a Faraday rotator having an optical element and a magnet which is arranged coaxially with the optical element and is provided with a passage hole, the magnet being arranged so as to be movable along the transillumination direction of the optical element. In order to specify a Faraday rotator which both makes possible a high extinction and also has a large setting range of the angle of rotation of the polarisation plane of light for a large wavelength range, the optical element is arranged, in the operating condition of the Faraday rotator, at least partially in such a region of the magnetic field formed by means of the magnet in which the Z-component of the magnetic flux density extending parallel to the axis of the magnet exhibits magnitudes having both negative and positive sign.
Patent DE-4320266-A1 (DE)
Title: Advertising medium
Inventor: MENDLER ALFRED
IPC: G09F13/04
Filed: 1993-06-18
Abstract: Illuminated advertising medium having an illumination arranged behind the advertising area and a translucent advertising area, the advertising medium containing a grooved profile which is open on one side, a transparent panel-shaped advertising area which can accommodate for example advertising messages in the form of displays, slides (transparencies), etc. and which covers the opening in the grooved profile, and terminating caps at both ends of the grooved profile. The advertising medium can be mounted for example in a taxi instead of the sun-shade (sun-visor) on the front passenger side. <IMAGE>
Patent DE-4321339-A1 (DE)
Title: Conveyor band for the conveyance of household paper rolls
Inventor: LANGHAMMER HEINRICH
IPC: B65G21/20
Filed: 1993-06-26
Abstract: The present invention relates to a conveyor band for household paper rolls, especially for toilet paper rolls, as a feed to their packaging station, in which the rolls are wrapped, consisting of an upper and a lower strand and of a bridge arranged above the upper strand and having railings, hanging down from the bridge, for the lateral guidance of the rolls, according to the invention the railings being mounted non-adjustably at a fixed location on the bridge and having guide elements which widen downwards in a bell-like manner below the height of the mid-axes of the rolls. <IMAGE>
Patent DE-4321843-A1 (DE)
Title: Process for the preparation of nitrogen five-membered ring heterocycles
Inventor: PINKOS ROLF DR
IPC: C07D207/26
Filed: 1993-07-01
Abstract: Nitrogen five-membered ring heterocycles of the formula I <IMAGE>  in which     R<1>, R<2>, R<3>, R<4>, R<5>, R<6>, R<7> and R<8> are hydrogen or R<1> is C1- to C10-alkyl, C1- to C10-hydroxyalkyl, C1- to C10-aminoalkyl, aryl, C7- to C10-aralkyl or C7- to C10-alkylaryl,   R<5> and R<6> are C1- to C8-alkyl, R<2> and R<3> together are oxygen, with the proviso that R<8> is hydrogen, R<3> and R<4> and/or R<7> and R<8> or R<6> and R<7> together are a bond,  are prepared by reacting vinyloxiranes of the formula II <IMAGE> in which R<5> and R<6> have the abovementioned meanings, with ammonia or primary amines of the formula III  R<1> - NH2 in which R<1> has the abovementioned meanings, in the presence of a compound of an element of sub-group VIII or of sub-group I of the Periodic Table of the Elements, optionally with addition of a Lewis acid, at temperatures from 20 to 200 DEG C and pressures from 1 to 70 bar, and then cyclising in the presence of hydrogen and of a hydrogenation catalyst at temperatures from 150 to 350 DEG C and pressures from 0.1 to 300 bar.
Patent DE-4322750-A1 (DE)
Title: Capacitive rotation angle sensor
Inventor: KERN WOLFRAM
IPC: G01D5/241
Filed: 1993-07-08
Abstract: The invention relates to a capacitive rotation angle sensor, which comprises a rotor disc (6), which is connected in a rotationally fixed manner to the sensor shaft (8), and at least one stator disc (5) which is fixed to the sensor housing (1), the discs being aligned plane-parallel to each other and having electrode structures on the sides facing each other. In order to compensate for mechanical play or thermally induced movements between stator disc (5) and rotor disc (6) in a reliable manner, the stator disc (5) encloses the sensor shaft (8) centrally and is secured against rotation by means (11, 12) which effect a non-rigid connection to the housing (1). <IMAGE>
Patent DE-4324563-A1 (DE)
Title: Attachment dowel
Inventor: MENSE HOLGER
IPC: A61C13/265
Filed: 1993-07-22
Abstract: The invention relates to a push-in dowel according to Patent Application P 4233615.5-35, comprising a block (10) whose contour regions (14, 15) at the sides of the transverse axis B in each case are identical to the inner contour (31, 41) of a female part (30, 40), known per se, for push-in parts, so that the female parts (30, 40) can be pushed in mirror image on to the block (10), and the block (10) having a spreading device for exertion of a force against the two female parts (30, 40) which can be pushed on to the block (10). The novel push-in dowel is characterised in that the spreading device comprises an actuation pin (80, 180) which can be displaced in a blind hole (19) provided vertically in the block (10), and two blocking pins (90, 190) which can each be moved in a connection bore (20, 21) which extends approximately from the lower end of the blind hole (19) at an angle  alpha  relative thereto through the block (10), the actuation pin (80, 180) having a length that is somewhat larger than the depth of the blind hole (19), and the blocking pins (90, 190) having a length that is roughly equal to the length of the connection bore (20, 21). <IMAGE>