baber/WOPTO huggingface dataset:
Patent DE-3913358-A1 (DE)
Title: IC engine operating on gaseous fuel - has device to control flow of air and gas to suit engine load
Inventor: SCHAELE WOLF-ANDREAS
IPC: F02M7/18
Filed: 1989-04-22
Abstract: The IC engine operates on gaseous fuel and has a device to control the flow of gas and air and to mix the gas and air. The device has a gas supply pipe (27) and a mixing pipe (31) which is fitted with a throttle valve plate (4). A venturi nozzle (30) is fitted in the mixing pipe (31) in front of the throttle valve plate (4). The full load gas supply pipe (16) is connected to the mixing pipe (31) at the point of min. cross-sectional area of the venturi nozzle. The part load gas supply pipe (10) is connected to the mixing pipe (31) at a point just downstream of the throttle valve plate (4). USE - Gas fuelled IC engine.
Patent DE-3913486-A1 (DE)
Title: Control device for a power steering system
Inventor: MERZ JOHANN
IPC: B62D6/02
Filed: 1989-04-25
Abstract: The invention relates to a control device with the aid of which the power assistance of the hydraulic steering system can be changed as a function of the travel speed. When the vehicle is travelling slowly, a large amount of hydraulic power assistance is obtained whereas when the vehicle is travelling faster the amount of power assistance reduces progressively. The control device comprises an electronic switching device (10) which controls the through-flow rate through an adjustment throttle (7) designed for example as a solenoid valve as a function of a tacho signal. The adjustment throttle (7) is seated in a feedline (3) of a power steering system (4, 5, 6). According to the invention, a pressure switch (14) is provided in the feedline (3) downstream of the adjustment throttle (7), which pressure switch (14) can transmit a control signal to the switching device (10). If it is necessary to perform a rapid steering movement in a suddenly occurring hazardous situation when travelling at high speed, the pressure switch (14) actuates the switching device (10) as a result of the drop in pressure and the said switching device (10) in turn opens further the adjustment throttle (7). As a result, a larger amount of power assistance of the power steering system is obtained so that the steering process which is suddenly necessary can be reliably carried out (Fig. 1). <IMAGE>
Patent DE-3916959-A1 (DE)
Title: Measurement transducer for lengths or spacings in micrometer range
Inventor: DOEMENS GUENTER DR ING
IPC: G01L3/10
Filed: 1989-05-24
Abstract: The length or spacing to be measured which is in the micrometre range is made the spacing of the plates of an electrical capacitor assembly.  Subsequent measurement with the length-analogue capacitance gives the required parameter value. The basic relationship on which the transducer action depends is:  C = k.A / [d + dx] where the measured distance and its variable component are d and dx, with A the area of the transducer capacitor, k the electric permittivity and C the measured capacitance.  It follows that the measured distance is always smaller than the basic interplate spacing.  In practical realisation the capacitor structure takes the form of two electrodes, (Es1, Es2), which are each an assembly of a multiplicity of parallel plates, (E1,E2), meshing with each other, mounted on plates of insulating material (e.g. PTFE) (Ts1,Ts2).  The total capacitance results from the parallel connection of individual plates to form N pairs, with the capacitance calculated from the expression above by introduction of a multiplying factor N. In measurement of shaft displacement clamping rings are placed about the shaft with an intermediate insulating layer for electrical isolation. The capacitor sections (E1,E2) are mounted on the rings whose axial spacing determines the capacitor plate meshing while any peripheral displacement corresponds to the plate spacing.
Patent DE-3919862-A1 (DE)
Title: Hollow casing for building construction - has tubing inside casing to provide cooling or heating system
Inventor: KOESTER HELMUT DIPL ING
IPC: F24D3/14
Filed: 1989-06-19
Abstract: Hollow casing for use as framework for cemented wall, cover and floor constructions consists of an upper and lower layer with capillary tubing running between fed with hot or cold air/liquid. The upper and lower layers are spaced by a wave-like spacing element (84) or a bridge-like element (14, 15) or a tubular element (97). To facilitate construction with a concrete layer the surface facing the concrete is provided with anchor holes (73 - 80). The tubing is fixed in place by adhesive or weld joints and foam is sprayed into the spacings (106 - 109). ADVANTAGE - Is simple construction using min. of volume. Construction is safe against leakages and provides good sonic and thermal insulation.
Patent DE-3922210-A1 (DE)
Title: Card reader which operates reliably, esp. with fraud protection - has insertion-extraction slot closure, roller pair and contact set controlled according to card position
Inventor: ROESSLER FRANZ
IPC: G06K13/08
Filed: 1989-07-06
Abstract: A card reader with an input/output slot closed after card insertion has a roller pair (10,11) behind the slot which passes the card to a transport guide and a contact set which connects to card contracts. At least one roller is spring biassed toowards the other and one is coupled (18,19) to a flywheel (17) activated by card insertion. The card is passed inwards by the energy fed to the flywheel. Control signals, e.g. generated according to the card position, control the mechanisms for card induction and ejection. USE/ADVANTAGE - Reliable operation is achieved, esp. with protection against fraud.
Patent DE-3924762-A1 (DE)
Title: Ventilation wall for storage or transport containers - has specially shaped lamellar strips to keep back spray fluid
Inventor: HOFFMANN DIETRICH DIPL ING
IPC: B65D88/74
Filed: 1989-07-26
Abstract: The ventilation wall has parallel strips (12) forming a row of ventilation slits (14). The profiled section of each strip (12) has a centre web (16) running parallel to the wall plane, two arms (18) protruding roof-shaped towards opposite sides from one end of the centre web, and two projections (20) each adjoining the free ends of the arms and running parallel to the wall plane. The centre web (16) of each strip projects freely into the interspace between the projections (20) of each adjoining strip.  The strips are pref mounted horizontal with the centre webs pointing upwards. The height of each strip can be greater than twice their width. USE/ADVANTAGE - Ventilation wall for container allows sufficient air exchange but any spray fluid is kept back in each direction.
Patent DE-3925579-A1 (DE)
Title: Circuit for differential capacitor contg. two partial capacitances - contains three controlled switches and sample-and-hold circuit
Inventor: HANNAPPEL JOACHIM
IPC: G01L9/12
Filed: 1989-08-02
Abstract: A circuit for a differential capacitor enables the first of two partial capacitances (C1, C2) to be charged to a defined voltage via a first controlled switch (S1). A second controlled switch (S2) enables the two capacitances to be connected in parallel. The second capacitance (C2) is discharged via a third controlled switch (S3) and connected to the input of a sample-and-hold circuit (1). USE/ADVANTAGE - For use with a differential capacitor consisting of two partial capacitances. Sensing acceleration, force, pressure, or distance. Enables changes in differential capacitance corresp. to input parameter to be converted into electrical signal substantially without error influences.
Patent DE-3929027-A1 (DE)
Title: Negative-voltage-limiting protection circuit for semiconductor chip - performs rapid clamping of input voltage at transistor saturation value without restricting range of circuit protected
Inventor: SEILER HARTMUT DIPL PHYS
IPC: H01L27/02
Filed: 1989-09-01
Abstract: Between the positive and negative DC supply connections (a,b) a protective circuit is constituted by eight inversely driven n-p-n transistors (T4-T11), a resistance (R1) and two p-n-p current sources (Q1,Q2). Interference at the input connection (c) which goes below the negative supply voltage diverts the current (12) from one source (Q2), cutting-off one transistor (T7). Current (I1) from the other source (Q1) flows to the base of another transistor (T5) whose emitter current reverse-drives the input transistor (T11) and clamps the input connection (c). ADVANTAGE - Disturbing voltages are held significantly below breakdown voltage of substrate diode at input connection.
Patent DE-3931922-A1 (DE)
Title: Conveyor for metal chippings - has conveyor systems offset from each other either side of outlet
Inventor: GALLERT HORST
IPC: B65G25/08
Filed: 1989-09-25
Abstract: The conveyor system is for moving metal chippings. It has a thrust rod supporting entrainment devices which move to-and-fro in the conveyor channel. The outlet (1) for the conveyor channel can be mounted at any point in the channel and the entrainment devices (4) on one side of the outlet (1) are mounted on the thrust rod off-set by 180 deg. relative to the entrainment devices (5) on the other side of the outlet. USE - Conveyor system for metal chippings.
Patent DE-3935017-A1 (DE)
Title: Jointing system for electric cable with high tensile core - has modified crimp connector with transverse holes for anchoring high tensile plastic core using conventional tools
Inventor: ROENISCH WOLFGANG DIPL ING
IPC: H01R4/20
Filed: 1989-10-20
Abstract: A method of connecting the conductors (3) of electric cables in which the conductors surround a high tensile plastic core (1) employs a tubular metal crimp connector (5) in which are pierced a number of transverse holes (6). The outer insulation (4) is stripped from the copper conductors (3) to be joined, as is also the surrounding sheath (not shown) of the plastic core (1). The core (1) strands are suitabley bunched using binding wires (not shown) and the conductor (3) ends entered into the connector (5) enabling insertion of the strands (1) through holes (6) for typing off (7). Crimping with a conventional press tool completes the joint. USE/ADVANTAGE - In situations requiring a high tensile cable construction e.g. coalmining. Is less time consuming than alternative methods giving a shorter more flexible connection for training cables on mining machinery. Provides a joint with more than 80 oper cent of tensile strength of continuous cable has good electrical conductivity as proved by repeated cycling trials.
Patent DE-3939424-A1 (DE)
Title: U=shaped frame for bag or case - has grip and closing part subsequently fitted into frame aperture
Inventor: REISCHAUER ULRICH DR
IPC: A45C13/06
Filed: 1989-11-29
Abstract: The frame for a bag or case has at least one handle and/or closing part (6) mounted on the frame web and provided with at least one recess (7). At least one through opening (9) is provided in the web (2) whilst at least one retaining element (10) is designed to engage through this opening and engage behind the web (2) on its side remote from the handle and/or closing part (6) and into the recess (7) of the handle and/or closing part. The retaining element is pref fixed in force locking engagement in the recess which can be cylindrical. USE/ADVANTAGE - The customer's choice of closing and/or handle part can be fitted once the bag has been made.
Patent DE-4000859-A1 (DE)
Inventor: SCHENK JOERG
IPC: H04M1/72502
Filed: 1990-01-13
Abstract: The device enables the operation of at least two cordless telephones whilst avoiding interference resulting from joint operation. A common antenna is provided which is connected via an antenna duplexer to an input filter and an output filter. In the vicinity of the input filter, signals received by the antenna are split up and fed to the base station. The output filter serves to generate an output signal which is to be transmitted by the antenna and which is combined from the individual output signals transmitted from the base stations. <IMAGE>
Patent DE-4005894-A1 (DE)
Title: Cosmetic stick prodn. method - consists of sleeve leading into mould, with duct and front end
Inventor: KRUECKEL PETER
IPC: A45D40/16
Filed: 1990-02-24
Abstract: The method of producing an esp. cosmetic stick consists of inserting a sleeve (12) with its front end section (16) into a mould (10). A mass of cosmetic material in liq. form is poured into the mould (10) and solidified. A duct (14) is made from the back end, through which the liq. cosmetic material passes into the sleeve (12). USE/ADVANTAGE - Cosmetic sticks of relatively small dia. and long length can be made without requiring a vacuum.
Patent DE-4006044-A1 (DE)
Title: Halide-doped tin (IV) oxide - used as electroconductive filler or pigment in e.g. plastics, lacquers, paints and paper, etc.
Inventor: RUF ERICH DR
IPC: C09D5/24
Filed: 1990-02-26
Abstract: Electrically conductive SnO2, contg. max. 2 (pref. max 1.5) wt% Sn (II) and 0.1-2.5 (pref.0.1-1.0) wt% halide(s), is new. Processes for prodn. of the SnO2, by firing a Sn (II) halide-contg. mixt. and then grinding, are also claimed.
Patent DE-4007015-A1 (DE)
Inventor: MIYAZAWA AKIYASU
IPC: G06Q40/02
Filed: 1990-03-06
Abstract: A document imprinting apparatus (4) for receiving a document (1) bearing coded data relating to fixed information (such as page information) is recorded and for printing information such as a character string so as to achieve a predetermined print operation thereon includes a transport unit (3, 3') for transporting the medium, a printer (7, 8') for printing characters on the medium while it is moving and an optical reader (12) installed on the printer for reading fixed information recorded as a bar code and for sensing the print information. Information (eg relating to the last position to be imprinted) may be recorded (eg on a magnetic stripe) to allow a subsequent printing operation to be correctly effected. The document may be a pass book. <IMAGE>
Patent DE-4007681-A1 (DE)
Title: Furniture suspension fitting with coupler - is in two parts, with one connectable to furniture and another one to profiled support rail
Inventor: RATTIN PAUL
IPC: A47B96/06
Filed: 1990-03-10
Abstract: The suspension fitting has a coupler for releasable mounting on profiled rail, wall etc. It is in two parts, with one part connectable to the profiled rail etc., and the other part to the funiture. The fitting part (3), fixed in the room, has at least one recess (15) in which engages a spring-loaded pawl (14) on the side of the furniture.
Patent DE-4009011-A1 (DE)
Title: Temp. sensor using resistance bridge circuit - having terminal of measuring diagonal connected to input of differential amplifier
IPC: G01W1/17
Filed: 1990-03-21
Abstract: The first of the two bridge branches  coupling the diagonal power supply junction points contains a temp. dependent resistor (3,5) in each arm. The other bridge branch contains a temp. dependent resistor (6) in one arm and a fixed value resistor (12) in the other. The connecting point of the measuring diagonal is coupled to an input of a differential amplifier (16). One of the dependent resistors (3) measures the radiant temp. of the locality in which the temp.  sensor is used. It (3) is opposite the fixed resistor (12).  The measuring diagonal has two setting resistors (13,14). The tap for the differential amplifier is placed between the latter. The input supplied by this tapping point is joined to a variable voltage divider (17) tap for null point setting. ADVANTAGE - Balances to ambient air and radiation temperatures pertaining at location of application.
Patent DE-4010817-A1 (DE)
Title: Grid floor with slit perforations - is used for cattle stalls and has part of grid that can be folded up for easier cleaning
Inventor: MAUE HERMANN
IPC: E04F19/10
Filed: 1990-03-30
Abstract: The grid-floor has a large number of slit perforations (3, 11). This enables the removal of dung from  cattle stalls and the floor is arranged above a disposal channel In order to form an enlarged opening for through-fall, a part (1") of the grid (1) covering a part of the surface can be folded up out of the grid surface along one of its edges. USE/ADVANTAGE - Provides a safe standing surface for the cattle above the disposal channel, and also provides an easy way of washing away any dung that cannot fall through the slits.
Patent DE-4015871-A1 (DE)
Title: Front spoiler for vehicle for random vortex sepn. - has comb shaped rubber elements or nylon bristles to reduce wind noise
Inventor: DOEPKE HUBERTUS
IPC: B62D35/00
Filed: 1990-05-17
Abstract: Wind noise generated by the underside of a vehicle is reduced by a comb shaped strip (1'). The strip can be stepped or wavy and built up of plate elements. The elements can be flexible and made of rubber, wire or nylon bristles. Or strip can be included in the front spoiler (5'). Pref. strip has nylon bristles 2.5 mm dia. and 60-120 mm long. One row is mounted just behind the front spoiler with a second row 20-120 mm behind it. The bristles are inclined by 30-60 deg. to the vertical. Or front spoiler (5') is modified to include stepped and uneven plate elements to reduce the scale of turbulence. USE/ADVANTAGE - Device reduces wind noise by inducing random vortex sepn.
Patent DE-4020764-A1 (DE)
Title: Hermetically sealed rotary compressor - has axial gap for lubrication oil between piston and cylinder wall
Inventor: NETTO DA COSTA CAIO MARIO FRAN
IPC: F04C18/356
Filed: 1990-06-29
Abstract: The interior of the sealed housing is coupled to the condensation pressure of the refrigeration circuit and encloses a cylinder block (4). An inner cylindrical chamber houses a rotary piston (5) attached to an eccentric section of a crank shaft (6). The cylindrical chamber is sealed at its axial ends two end walls (10a, 20a) and internally by the rotary piston (5). A sealing rail defines a suction chamber at a reduced pressure relative to theinterior of the interior of the housing. An axial gap is provided for lubrication oil between the boundary wall of the cylindrical chamber and the rotary piston with ratio of the outer dia to the inner dia of the piston (5) lying between 1.63 and 2.22. USE/ADVANTAGE - Improved compressor efficiency. Small refrigeration machines and air conditioning installations.
Patent DE-4022721-A1 (DE)
Title: Joint between pipe and pipe fitting - has arrangement causing radial expansion of pipe wall into grooves in fitting
Inventor: CLOATRE RAYMOND
IPC: B21D39/04
Filed: 1990-07-17
Abstract: A joint is formed between a pipe (1) and a tubular fitting (2) in the following way. The bore of the fitting (2) is a sliding fit on the pipe (1). Two circumferential grooves (8) and (9) are formed in the bore of the fitting (2). The fitting (2) is supported on its external surface by two blocks. A sleeve of elastomeric material (4) is inserted into the bore of the pipe (1). This sleeve is subjected to a compressive axial force by means of a bolt (7). This axial force causes the sleeve to expand radially and exert radial pressure on the pipe which is radially expanded in the regions of the grooves (8,9) so that the pipe wall is plastically deformed and forced into the grooves (8,9) to form a joint between the pipe (1) and the fitting (2). USE - Pipe joints.
Patent DE-4022731-A1 (DE)
Inventor: HUMBUG MICHAEL DIPL ING
IPC: F01P3/20
Filed: 1990-07-17
Abstract: The coolant is pumped (88) from the engine (6) to a heater (2) where it extracts heat from combustion gas before passing through a space heater (4) for warming-up the passenger compartment; this unit can be bypassed (84) by a thermostat (86). The valve (12) has one inlet (14) from the engine (6) and another (16) from a bypass line (8) contg. a non-return valve (10). It is adjusted by an electrical system incorporating two expansion elements at opposite ends of the valve stem. <IMAGE>
Patent DE-4024000-A1 (DE)
Title: Centralisers for oil well casings
Inventor: JAENSCH MANFRED
IPC: E21B23/00
Filed: 1990-07-28
Abstract: Centralisers for oil well casings comprises (a) a mounting (10) by which the centraliser (4) may be mounted on an outer surface of a casihg (11) and several members (12) carried by the mounting (10) at spaced intervals; characterised in that (b) the members (12) are held by a control device (15) in a collapsed disposition in which the members (12) extend along the casing (11) closely adjacent its outer surface; (c) the control device (15) being so operable that the members (12) move from the collapsed disposition to a deployed position in which the members (12) extend away from the mounting (10) for engagement with an associated borehole.
Patent DE-4031688-A1 (DE)
Title: Mobile drill for hollow auger drilling -  consists of drill rig mounted on back of commercial vehicle and has swinging mast
Inventor: NOACK INGO DR RER NAT
IPC: E21B3/04
Filed: 1990-10-04
Abstract: The mobile drill, particularly for hollow auger drilling, consists of a drill rig mounted on the back of a commercial vehicle, whose mast can be swung from a horizontal transporting position to a vertical working position. A windlass and a motor to drive the drill are also mounted on the vehicle. The frame (3) has a turntable (8) through which the drill stem passes, a feed unit (4), and above the turntable (8) a swinging mast (18) over which the winch cable (6) passes, and which has a swinging cylinder (13). USE/ADVANTAGE - Hollow auger drilling at an economic cost.
Patent DE-4035788-A1 (DE)
Title: Raisable and lowerable car parking platform - allows one car to be parked abover another at roadside
Inventor: ROMANOWSKI WALTER
IPC: E04H6/06
Filed: 1990-11-10
Abstract: The equipment comprises a coupling quadrilateral link gear (L) positionable by a controllable hydraulic cylinder (9), and fitted on a support column (1). The gear is connected to the vehicle platform (5) by a support frame (10) via a coupling. The platform can be positioned in a raised location or in a loser horizontal position allowing a vehicle to drive off or on to it. The coupling quadrilateral link gear (L) in each position comprises two struts (3, 4) forming a parallelogram, and between which the support frame (10) is accommodated. One strut of each link gear is pivotably connected to one another via a shaft (7) on which is fitted an operating lever (8) engaged by the hydraulic cylinder (9). USE/ADVANTAGE - To enable one motor car to be parked over another at roadside, or elsewhere where limited space appertains.
Patent DE-4039662-A1 (DE)
Inventor: MICHEL HARTMUT DIPL ING
IPC: H01L29/732
Filed: 1990-12-12
Abstract: Proposed is a monolithic integrated semiconductor device with, fitted on the main surface of a monolithic integrated npn or pnp transistor, a cover electrode (D1) for internal voltage limitation which covers a single transition region between a highly doped zone (5) and the lightly doped substrate (1). An adjacent highly doped zone (4) is not covered by the electrode (D1). Connecting the metal cover electrode (D1) to the tap point (12) of a voltage splitter (R1, R2) enables a breakdown voltage to be set which is greater than the sum of the depletion-mode breakdown voltage and the enhancement-mode breakdown voltage.
Patent DE-4100086-A1 (DE)
Title: Fuel injection device for IC engine - performs mixture feed into combustion chamber through Laval nozzle
Inventor: MANZ PETER WOLFGANG DR
IPC: F02F1/22
Filed: 1991-01-04
Abstract: The device has a fuel injection nozzle, with an outlet, located in a hollow housing chamber, through which flows supporting air. The chamber has a mixture outlet and a Laval nozzle, between the two outlets. In a reciprocating piston engine, the mixture outlet (12) opens directly into a combustion chamber (1) at a point, which is covered by the piston (3) during the high pressure combustion phase in the chamber. USE/ADVANTAGE - Direct mixture feed into combustion chamber of reciprocating IC engine.