baber/WOPTO huggingface dataset:
Patent DE-4021385-A1 (DE)
Title: Generation circuitry for two DC voltage supplies - has switched transformer with two output circuits having diodes and capacitors
Inventor: KRAHL BURGHARD DIPL ING
IPC: H02M3/335
Filed: 1990-07-05
Abstract: A switched power supply has a transformer (Tr) with a primary winding (NO) and a secondary (NI). The secondary winding has a square wave voltage (UNI) applied. The primary circuit has a switch (S) and is coupled to a voltage (VO) via a capacitor (CO). Diodes (D1a,D2a) and capacitors (C1a,C2a) are connected to form two output voltage (V1a,V2a) take-off points. The amplitudes of the output voltages are dependent upon the amplitudes of the signals associated with the switch operating phases. ADVANTAGE - Provides two different output voltages.
Patent DE-4025613-A1 (DE)
Title: Polyester film for thermal transfer recording sheets - obtd. by applying electron-beam-curable resin to incompletely stretched polyester substrate, stretching film and electron-curing resin
Inventor: MATSUSHITA TOSHIHIKO
IPC: C08J7/043
Filed: 1990-08-13
Abstract: Polyester films (I) for thermal transfer recording sheets (II) is obtd. by applying an electron beam-curable resin (III) to one side of a polyester film before complete crystalline orientation of the film, stretching the coated film and curing the resin layer with an electron beam. The above process is claimed as such. Specifically (III) is a polyester-acrylate, epoxy-acrylate, polyurethane-acrylate, pllyetheracrylate, melamine-acrylate, alkyd-acrylate or silicone-acrylate resin. Substrate film is PET, PBT, etc. (III) is, e.g. adipic acid/1,6-hexanediol/acrylic acid copolymer, TMA/diethylene glycol/acrylic acid copolymer, Bisphenol A/epichlorhydrin/-acrylic acid copolymer, TD1/polyester/2-HEMA copolymer, or other types as above; (III) ca contain various fillers to increase its heat resistance further; pref. coating thickness is 0.4-1.0 micron and total thickness of (I) is 4-8 microns. (I) is coated with fusible or sublimable ink or dye on the opposite side to (III). USE/ADVANTAGE - (iii) are useful in thermal printers, thermal fax machines, etc. The invention provides a heat resistant film which does not "stick" (to thermal printer heads, etc.).
Patent DE-4030970-A1 (DE)
IPC: G11B7/005
Filed: 1990-10-01
Abstract: A method of reading data from the tracks of an optical disc, in which the light output of the laser diode is controlled by comparison of the actual value with a set value and the set value is lowered during an operating mode which evaluates only control data, while the HF amplitude of the output signal of the scanning head and/or an error rate signal of the data decoder is used at the actual value. <IMAGE>
Patent DE-4033688-A1 (DE)
Title: Lightweight rocker for use between can and valve - has baseplate and curved bow sides made of FRP with injection moulded braces and centre bearing
Inventor: KORINTH JUERGEN
IPC: F01L1/18
Filed: 1990-10-23
Abstract: A rocker is mainly made of FRP and has a base plate to support the cam and valve, with at least one stiffening piece joining its ends. The baseplate (1) is attached to the strengthening bow (2) at each side, both plate and bows being made of FRP e.g. from prepreg which has cut-outs (4a-4c). The prepreg is moulded from the base with low sides, all the fibres being unidirectionally disposed. Stiffening braces (5) join the top bows and base. A bearing (6) for the rocker is in the structure and, as well as the braces (5), is injection moulded. Contacts (7) fit into the holes (4a,4c) in the base and are e.g. glued in position. These meet the cam or valve. The complete prod. saves 36% of the original wt. ADVANTAGE - It is efficiently designed in FRP and for simple prodn. (1/3)
Patent DE-4101697-A1 (DE)
Inventor: BLUM HARALD DR
IPC: C09D175/06
Filed: 1991-01-22
Abstract: Aqueous polyesters which contain a) from 35 to 65% by weight of a polyester resin containing urethane, carboxyl and hydroxyl groups, b) from 0.1 to 1.5% by weight of a basic neutraliser, c) from 0 to 7.5% by weight of an organic solvent, and d) from 26 to 64.9% by weight of water, where the urethane-modified polyester resins a) have been prepared by reacting selected starting materials; aqueous stoving enamels (paints, varnishes) whose binder essentially comprises these polyesters, crosslinking resins and optionally further hydroxy-functional polymers; and the use of the polyesters, optionally in combination with crosslinking resins and other water-compatible binders, in paints, coating compositions and sealants.
Patent DE-4103166-A1 (DE)
Title: Real=time quality control for workpiece manufacturing process - uses sensor mechanisms to monitor each stage of process simultaneously to enable maintenance of tolerances
IPC: B23Q17/00
Filed: 1991-02-02
Abstract: A continuous metal strip (5) is fed through a series of punching and stamping tools (2, 6, 8, 11, 12) which are all mounted in the same press, to produce individual shaped items (22). Process monitoring is achieved through sensors integrated with the production equipment, which may include optical sensors (3), proximity switches (9, 20) and temperature sensors. Measurements are be monitored and checked by a central control processor, and adjustments made to keep them within specified tolerances. ADVANTAGE - Minimises process stoppages. Simpler tracing of process problems.
Patent DE-4105362-A1 (DE)
Inventor: STEGMAIER ALWIN
IPC: B60T15/02
Filed: 1991-02-21
Abstract: The purpose of the invention is to simplify the manufacture and the assembly of the solenoid valve. The solenoid valve (10) has a seat valve (12) which can be overridden by a parallel nonreturn valve (13). The nonreturn valve (13) has a closure element in the form of a collar (32) disposed concentrically about the longitudinal axis (11) of the solenoid valve (10). The collar (32) is accommodated in a bore stage (16) of the valve housing (14). Its outer sealing lip (36), which is made of an elastic material, co-operates with the inner periphery of the bore stage (16). A retaining body (42) engages with radial and axial play in the collar (32). The solenoid valve (10) can be used as a pressure-control valve in hydraulic breaking systems with ABS for motor vehicles.
Patent DE-4109858-A1 (DE)
Title: Vapour emission detection for solid or liquid substances - using gas chromatograph with cooling of gas chromatograph column during collection followed by heating to operating temp.
Inventor: WEIHRAUCH THOMAS DR
IPC: G01N30/72
Filed: 1991-03-26
Abstract: The detection method uses a gas chromatograph. The substance is placed in a specimen vessel and the emitted material driven out and conducted to a gas chromatograph or GC column in the gas phase. The condensed material is collected in a cooled segment of the entry to the column during extraction. The cooled column section is then heated to the operating temp. of the GC. The material is conducted via the connected parts of the column and fed into a detector. The gas chromatogramm is recorded. USE/ADVANTAGE - For use under wide range of conditions, enables detection of materials at acceptable cost.
Patent DE-4111368-A1 (DE)
Title: IC engine piston assembly - has upper part connected to separate skirt by gudgeon pin in specially prepared bores
Inventor: BREGLER WERNER
IPC: F16J1/16
Filed: 1991-04-09
Abstract: The piston in an IC engine has its upper part (1) made of steel or cast iron, and is connected to the piston skirt (2) by the gudgeon pin. The piston upper part (1) has an integrally formed boss (4) which has a bore (3) to receive the gudgeon pin. The surface of this bore is phosphated and has a surface roughness according to DIN 4768 of Ra = 0.5 - 2.0 micrometres.  Alternatively the bore surface may be coated with tin or lead to produce a surface roughness according to DIN 4768 or Ra = 0.5-1.5 micrometres. USE - Piston for IC engine.
Patent DE-4115647-A1 (DE)
Title: Control system for road vehicle - has engine controlled by processor receiving inputs from accelerator pedal sensors duplicated for fail=safe operation
Inventor: LIEBEROTH-LEDEN BERND DR ING
IPC: B60K26/00
Filed: 1991-05-14
Abstract: The drive-by-wire system has a microcomputer controller (10) with a processor (12) and memory (14) coupled by a bus to an I/O unit (16). The driver operates accelerator (30) and brake pedals (38) and coupled sensors (24, 26, 34) provide inputs to the controller. Output commands from the controller are received by the fuel regulator (58). The accelerator pedal sensors are duplicated to provide fail safe operation. The system has a watchdog routine to detect any failure. Any failure results in the engine operation being limited to a safe value. ADVANTAGE - Engine controller provides high level of safe operation.
Patent DE-4121500-A1 (DE)
Title: Spherical contact coupling for liquid pipes
IPC: F16L27/06
Filed: 1991-06-28
Abstract: Spherical contact coupling for liquid pipes has ring on cup section screwed over flange on spherical section to compress seal between two coupling sections
Patent DE-4121932-A1 (DE)
Title: Dental treatment waste water separator - has servo valve opening control to prevent build=up on intermediate store wall
Inventor: HOFMANN HANS-JOACHIM DIPL ING
IPC: B04B13/00
Filed: 1991-07-03
Abstract: The system to separate solid particles from the waste water, at a dental treatment station, has a switched separation (12,14) to pass the solids to a collection container and the water to a clean water outlet (40) with a control system (124). At the end of the activating signal for the separation unit (12,14), the control circuitry (134,142,144) holds the servo valve (22) open for a given time span independently of the signal to show the level in the intermediate store in front of the inlet to the separator (12,14). Pref. the separator (12,14) has an air separation cyclone (14) which is connected to an underpressure source (130) by a circuit (124) which prepares a valve opening signal only if no other activating signal is in force. The servo valve (22) has a single action setting cylinder, operated by compressed air, with a cover over the piston head end with an outflow opening, closed at a tongue value of an elastic material with a beading towards the piston end side, working together with the piston. ADVANTAGE - The operation prevents build-up of deposits on the walls of the intermediate store at the level which trips the level switch sensor.
Patent DE-4123019-A1 (DE)
Title: Abrasive blasting cabinet for fine dental finishing work - has blasting nozzle with injection effect to recirculate abrasive powder drawn from collecting chamber and mixed with air.
Inventor: PUESCHNER GEORG DIPL ING
IPC: A61C3/025
Filed: 1991-07-11
Abstract: The dental workpiece is finished by abrasive blasting in the work space of a cabinet having a viewing window and two apertures through which it is visually and manually accessible. Fixed in the work space is an abrasive blasting nozzle which utilizes the injection effect to draw abrasive powder from a collecting chamber in the lower part of the cabinet. In the nozzle the abrasive powder enters a jet of compressed air and the mixture is blasted onto the work. The suction pipe leading to the injector-nozzle terminates at the bottom end in a vertical tube (112) transversely passing through the collecting chamber outlet channel (107). Abrasive powder is drawn into the suction pipe through a slot (123) in the pipe. Additional air is drawn in through the open end (119) of the pipe and mixes with the powder as it flows into the suction pipe (125). ADVANTAGE - Improved mixing and consistency of air-abrasive mixture.
Patent DE-4125554-A1 (DE)
Title: Combustion engine throttle flap positioner - has emergency setting on negative slope of characteristic relating airflow to angle of flap reset by rotary magnet
Inventor: BELLON TORSTEN
IPC: F02D11/10
Filed: 1991-08-02
Abstract: The positioner moves flap (7) with a purely mechanical linkage (8) from the accelerator pedal (9) acting on a stirrup (10) which slides between idling (LL) and full-load (VL) positions against double springing (11). Two spring-loaded jacks (12,13) act from opposite directions on a lever (14) coupled to the shaft (15). The shaft is operable directly by the rotary magnet (19) under electronic control (20) from a feedback potentiometer (22). A ball-catch (21) secures the emergency idling setting with both springs (17,18) fully relaxed. ADVANTAGE - No special emergency setting spring is needed and the problem of reversal of rotation without backlash cannot arise.
Patent DE-4126970-A1 (DE)
Title: Compsn. for coating interior walls and ceilings - contg. textured particles of cellulose@ material, biodegradable binder and opt. additives
Inventor: SCHMIDT WOLFGANG DIPL CHEM
IPC: C09D101/02
Filed: 1991-08-14
Abstract: A compsn. for coating interior walls and ceilings in buildings contains (a) at least 35% of mechanically, 3-dimensionally textured particles from flat material with cellulose as main component, (b) a binder comprising solely biodegradable substance, and opt. (c) additives. Pref. the particles comprise white and/or coloured paper, have dia. 0.4-4mm (0.7-2.5mm), and are textured by the simultaneous action of water and heat opt. with addn. of a pref. surface-active lubricant. The binder (i) is a modified form or deriv. of a natural mixt. of amylose and mylopectin based on native starch, pref. an incombustible starch deriv., in amt. of 5-20% (10-12%), (ii) is xanthan, in amt. of 6-12%, or 5-20% of the starch binder may be replaced by xanthan, (iii) is a guarane deriv., pref. 4-12% (6-8%) of a hydroxy- and/or carboxy-alkylguarane, partic. carboxymethyl hydroxypropylguarane, or 10-50% of the starch binder may be replaced by a guarane binder, or (iv) 5-30% of the starch binder may be replaced by a water-sol. salt of alginic acid. ADVANTAGE - The compsn. is free from difficultly biodegradable binder, and quickly forms adherent, dried structured coatings, which are not electrostatic and do not attract dust and dirt particles, are heat- and sound-insulating, and resist rubbing. The coatings can easily be removed after wetting, and can be disposed of without harming the environ
Patent DE-4128733-A1 (DE)
Inventor: LEHMANN MARTIN
IPC: B65G47/244
Filed: 1991-08-29
Abstract: In order to allow certain operations to be carried out more at standstill and thus more easily at a work station (9, 84, 27) that works on continuously moving items, for example plastic bottles (1), the individual items (1) are transported by a feed screw (5), the pitch of which increases in the transport direction, in the direction of the work station (9, 84, 27), are intermittently transported within the work station (9, 84, 27) then are brought back to the continuous transport flow by another feed screw (5a), the pitch of which decreases in the transport direction.
Patent DE-4128808-A1 (DE)
Title: Contactlessly measuring RPM of ferromagnetic component with detection of direction of rotation - using permanent magnets between component concerned, e.g. tooth of gearwheel, and element sensitive to magnetic field
Inventor: LEONHARDT HORST
IPC: G01P13/04
Filed: 1991-08-30
Abstract: The rotation detector, indicating the rotation rate and the direction of a rotating ferromagnetic component (1), uses a magnetic field sensitive element (3) providing a signal dependent on the rotational direction upon proximity of the ferromagnetic component (1). A pair of spaced anti-parallel permanent magnets (2a, 2b) focuses the magnetic flux to a point when the ferromagnetic component (1) is directly above the first magnet (2a). The flux is min. when the component (1) is between the magnets (2a, 2b) and a second flux focus when it lies directly above the second magnet (26) so that the field sensitive element (3) provides an AC voltage signal. The pulse ratio of the latter is evaluated to determine the direction of rotation, e.g. via an electronic evaluation stage. ADVANTAGE - Universal application, suitable for extreme environmental conditions.
Patent DE-4129452-A1 (DE)
Title: Rotary bottle capping machine - Has feed which delivers caps to sealing tool path over set angle as rotor turns
Inventor: BERNHARD HERBERT
IPC: B67B3/062
Filed: 1991-09-05
Abstract: The rotary machine seals bottles with caps (3) or crown corks, the rotor (1) turning on a vertical axis. A sealing tool (4)  works on a vertical axis (VA) presses the caps home, distorting them permanently in the process, and during this operation a holder (14) movable in the tool bears via its end face (16) against the cap. The caps are delivered via a passage (32) with a stationary horizontal support face. The transfer position is on the path of the sealing tool, and from it a mechanism moves the cap onto the tool. The indexing set angle extends from the transfer position. ADVANTAGE - Fast working and accurate positioning of caps.
Patent DE-4130741-A1 (DE)
Title: Brush for cleaning between teeth
Inventor: BOLAND BERNHARD DIPL ING
IPC: A61C17/34
Filed: 1991-09-16
Abstract: The tooth-brushing part (41) of a toothbrush (20) which has a handle (22) and brush-head (24), consists of a support for the bristles (45) especially in the form of a shaft (38). One end of the shaft has no bristles, and the bristles (45) on the other end go radially round the periphery of the shaft. The bristles decrease in length in steps from the one to the other part of the shaft. The shaft is made of twisted double wires between which the bristles are fixed. The brush-shaft is at right angles to the lengthwise axis of the brush part and handle.
Patent DE-4136625-A1 (DE)
Title: Seal with support for elastic sealing ring - has inclined axial sealing surface to ensure even contact pressure force of sealing ring
Inventor: HEILEMANN OTTO
IPC: F16J15/12
Filed: 1991-11-07
Abstract: The distance between the sealing surface (1) and the end side (11) of the support is larger at a sealing ring section remote from the bore than at a sealing ring section facing the bore (6). The sealing ring can be pressed more into the sealing ring sections further away from the fixing screw. The change in the distance from a point (14) of the sealing face (10) with smallest distance (12) up to the point of the sealing face with greatest distance (13) from the end side (11) of the support is constant. USE/ADVANTAGE - Seal with support for elastic sealing ring. Uniform pressure is achieved even where the fixing bores are set asymmetrical on the support.
Patent DE-4139103-A1 (DE)
Title: Windshield wiper for car - has cam driven by wiper motor with shoulder to receive projection of cam follower when in parking position
Inventor: ANDREI-ALEXANDRU MARCEL
IPC: B60S1/08
Filed: 1991-11-28
Abstract: The windshield wipers for a car are driven by an electric motor between two end positions and have a parking position after the motor has been switched off. There is a moving contact (2) controlled by a cam (7) which moves between fixed contacts (5,6). The cam is driven by the motor and a recess (18) engages with a projection (14) on a cam follower (3). This moves the contact between the fixed contact once per revolution and does not affect the motor at all until the off-switch is activated. Then when the contact arm falls, the wiper arms are parked when the projection meets the end stop on the cam (16). ADVANTAGE - Inexpensive arrangement with consistent parking position.
Patent DE-4140309-A1 (DE)
Title: Security diskette preventing unauthorised access to floppy disc drive - has form of floppy disc with key operated lock element and is secured in disc drive loading slot
IPC: G11B33/00
Filed: 1991-12-06
Abstract: A security element to prevent unauthorised access to the floppy disc drive of a computer is in the form of an inserted element having the general shape of a floppy disc. The main body of the rigid unit has a slot (12) to clear the drive spigot. One side of the unit has a lock element (15). Within this is a lock bolt (16) that is turned through 90 degrees to lock the unit within the loading slot of the disc drive. A key (23) is required to allow removal of the unit. ADVANTAGE - Prevents disc loading and protects against viruses.
Patent DE-4203184-A1 (DE)
Inventor: CONRAD HORST
IPC: H01R9/26
Filed: 1992-02-05
Abstract: In the case of this protective earth conductor terminal, an attachment and contact foot (4) is provided for the busbar (2) to make electrical contact with the carrier rail (5), which attachment and contact foot (4) is constructed as a solid metal part on which hook elements (6, 7) are provided for interaction with the carrier rail limbs and on which a long spring leg (8) is integrally formed. This allows reliable mechanical retention and good electrical contact to be achieved on and with the carrier rail (5) respectively, it being possible to produce the attachment and contact foot particularly easily, in one piece. <IMAGE>
Patent DE-4205126-A1 (DE)
Inventor: HERMELING WERNER
IPC: B01F23/10
Filed: 1992-02-20
Abstract: The invention relates to a process for the production of a gas mixture in a pressurised gas vessel, with at least one component which can be liquefied at ambient temperature and at a pressure below the pressurised gas vessel pressure, and with at least one component which cannot be liquefied at this pressure and this temperature, which process is characterised in that an initial gas mixture with the liquefiable component is first formed by means of an injector, with a content of the liquefiable component of the mixture which is greater than the proportion of the liquefiable component in the finished gas mixture, in that the initial gas mixture is then introduced into the pressurised gas vessel and in that subsequently the non-liquefiable component is introduced into the pressurised gas vessel until the desired gas mixture composition has been reached. <IMAGE>
Patent DE-4206439-A1 (DE)
Title: Tool for squeezing ferrule or collar onto round pipe or cable - has dies sliding in guideways at 45 deg. to jaw centreline so that when one die pair moves towards other the dies close radially onto ferrule
Inventor: HOMM KARL-GEORG DIPL ING
IPC: B25B27/14
Filed: 1992-02-29
Abstract: The tool (100) has two opposed jaws (112) on pivots (116) equidistant about the centreline. In the working ends (118) of the jaws two dies (46) at right angles to each other can slide along the inner, supporting surface of the jaws. Opposite the dies (46) in the ends of the jaws are two further dies (46) similarly supported in a central slider (130) which can move to and fro along the centreline of the tool under the action of ram mounted rollers (142). The jaws are opened to allow entry over the ferrule and pipe and then closed. Inward movement of the rollers (142) locks the jaws and brings the slider (130) forward. USE/ADVANTAGE - Simple design of ferrule squeezer giving reliable sealed joint.
Patent DE-4207028-A1 (DE)
Title: Non-nitrosamine-toxic rubber material with high heat-ageing resistance - contains diene] rubber with mixt. of mercapto-benzothiazolyl-sulphide, and/or mercapto-benzothiazole or tetra-butyl-benzothiazolyl sulphenamide
Inventor: GRAEBNER FRIEDRICH-WILHELM DIP
IPC: C08K5/47
Filed: 1992-03-06
Abstract: A non-nitrosamine-toxic rubber material (I) contains 100 phr diene rubber (or blend), 10-150 phr carbon black, 0-5 phr fatty acid and/or salt thereof (III)., 0-120 phr mineral oil and/or elastifying rubber plasticiser (IV), 2-20 phr ZnO, 0.5-10 phr vulcanising agent of formula (IIA) and/or (IIB) 0.3-5 phr 2-mercapto-benzothiazyl-sulphide (MBTS) and/or 2-mercaptobenzothiazol (MBT) and/or MBT salt or -0.5-5 phr N-tetra-butyl-2-benzothiazyl-sulphide and/or equiv. amts. of other sulphenamides, 0-6.5 phr sulphur or S-donor, 0-5 phr anti-ageing/anti-ozone additive (V) and up to 120 phr other rubber additives. In (IIA), total C atoms in R1-R4 = at least 9, with n = at least 2; in (IIB), total C atoms in R1 and R2 = at least 5, with n = at least 5, with n = at least 1, pref. at least 2, and M = metal atom. USE/ADVANTAGE - The invention provides non-nitrosamine-toxic rubber material (I) with better resistance to heat ageing than conventional non-nitrosamine-toxic materials, for use, e.g. in pipes and engine bearings etc., which are exposed to high temp.