baber/WOPTO huggingface dataset:
Patent DE-3834071-A1 (DE)
Title: Heat engine on the Stirling principle or the Ericsen principle
Inventor: HEIDELBERG GOETZ DIPL PHYS
IPC: F02G1/053
Filed: 1988-10-06
Abstract: Heat engine (2) on the Stirling principle or the Ericsen principle, with   (a) a pair of cylinders (4), which has a first cylinder (6), in which a cold piston (14) is capable of reciprocating, and has a second cylinder (10), in which a hot piston (16) is capable of reciprocating; (b) a flow connection (24) for the working gas between the first and the second cylinder (6, 10); (c) a cooler (20), a regenerator (22) and a heater (28), through which the flow passes in succession as the working gas flows from the first cylinder (6) to the second cylinder (10) and vice versa; and (d) a kinetic coupling (30, 50, 56) between the cold piston (14) and the hot piston (16) in such a way that the cold piston essentially lags one quarter of the movement cycle time behind the hot piston (16). At least in the cold piston (14) the ratio of movement stroke to diameter is less than 0.5; and the cooler (20) and the regenerator (22) are respectively arranged in a disc-shaped configuration inside the first cylinder (6).   <IMAGE>
Patent DE-3839784-A1 (DE)
Title: Hydrostatic power steering device, in particular for motor vehicles
Inventor: FASSBENDER ROLF
IPC: B62D5/097
Filed: 1988-11-25
Abstract: A hydrostatic power steering device with load-dependent power distribution has, for the purpose of controlling an adjustment pump (21), an orifice plate (37) for producing a pressure difference. A control valve device (18) contains a displaceable valve piston (15) in a valve bore (14). At the two ends of the valve piston (15), in each case one circumferential row of distributor longitudinal channels (30, 31) which can be connected to the expulsion chambers (8) of a metering device (7) or to a steering motor (20) are arranged. The orifice plate (37) has a cross-section which can be varied as a function of the position of the valve piston (15). The orifice plate (37) is formed for each steering device at in each case one end of the valve piston (15) between the final control edges (38, 40) of the longitudinal distributor channels (30, 31) and a control edge (41, 42) which bounds the valve hole (14) externally. <IMAGE>
Patent DE-3842959-A1 (DE)
Title: Wall dispenser for gel-like or liquid personal-hygiene products
Inventor: BAECKER WOLFRAM
IPC: A47K5/12
Filed: 1988-12-21
Abstract: Published without abstract.
Patent DE-3902214-A1 (DE)
Title: Connectable container having a spring-actuated drawer to receive different articles, e.g. audio cassettes
Inventor: NAWRATH PETER
IPC: G11B23/023
Filed: 1989-01-26
Abstract: Published without abstract.
Patent DE-3903474-A1 (DE)
Title: Method for operating an internal combustion engine
Inventor: SIMPERL JOHANN ING
IPC: F02M26/01
Filed: 1989-02-06
Abstract: Method for operating an internal combustion engine in which gas is removed from each cylinder in a predetermined angular range of the crankshaft, this gas is fed to a temporary store and is then fed back to the cylinder in another angular range of the crankshaft, the gas being removed from the cylinder after the end of combustion and being fed back from the temporary store before the beginning of compression. The advantages of this temporary storage of residual gas and recirculation of the latter at the beginning of the compression stroke are the achievement of a variable total charge mass in the combustion chamber while keeping the charge mass of fresh air the same. It is thereby possible to achieve a variable effective compression ratio. In the case of Otto engines, this means an improvement in part-load ranges close to idling, for example, an improvement in the thermal efficiency of about 30%. In addition, the ignition delay of compression-ignition internal combustion engines is shortened by the rise in the charge temperature. The emission of nitrogen oxides due to an increased proportion of inert gas in the total charge is reduced. <IMAGE>
Patent DE-3905933-A1 (DE)
Title: Slide fastener with two helical rows of teeth made of plastic monofilament
IPC: A44B19/40
Filed: 1989-02-25
Abstract: Slide fastener with two carrying tapes and two helical rows of teeth made of plastic monofilament, the teeth basted together by connection parts in each case having a coupling eyelet which consists of a lower leg on the carrying tape side, an upper leg and a coupling head. The rows of teeth lie on the carrying tapes with the coupling heads protruding over the inside carrying tape edges, the teeth being connected to the carrying tapes with the aid of tie-in stitch wales engaging jointly over the upper legs of the teeth and the underlying areas of the lower legs, these tie-in stitch wales being knitted into the carrying tapes. The lower legs of the teeth are engaged by at least one additional, separate lower leg stitch wale to form a filling thread. The lower leg stitch wale is knitted into the associated carrying tape alongside or between the tie-in stitch wales. <IMAGE>
Patent DE-3906412-A1 (DE)
Inventor: MASER GUSTAV
IPC: F16J15/34
Filed: 1989-03-01
Abstract: A mechanical seal, independent of the direction of rotation, for a shaft duct having a sliding ring (2) rotating with the shaft, an opposing ring (3), fixed to the housing, a driver ring (4) and a spring arrangement (5) between the driver ring (4) and the sliding ring (2). The driver ring (4) can be fixed on the shaft (1). The spring arrangement (5) presses the mechanical seal (2) against the opposing ring (3) with a lubricant film between them. The spring arrangement (5) has positively locking elements (8) which interact in a driving manner with positively locking opposing elements (9) on the opposing ring (3) and on the mechanical seal (2). The spring arrangement (5) consists of at least one sprung corrugated ring with corrugation peaks (10) and corrugation troughs (11), which surrounds the shaft (1) and has positively locking elements (8) which project from the ring surface and are distributed evenly around the circumference. These positively locking elements (8) engage in positively locking recesses (9) on the opposing ring (3) and on the mechanical seal (2). <IMAGE>
Patent DE-3907435-A1 (DE)
Title: Electrically heated through-flow water heater
Inventor: METZGER MANFRED
IPC: G05D23/19
Filed: 1989-03-08
Abstract: An electrically heated through-flow water heater having bare wire coil heating resistors (elements) which are connected via a three-pole water switch in Y-connection (star connection) to three phases of a three-phase mains, six heating resistors (9, 10, 17, 18, 21, 25) which output electrical power of the same magnitude as one another and form a chain being connected in series, this chain being connected by its mid-point (8) to one phase line (1) and by junction points (23 and 19, respectively) arranged between the first and second heating resistors (25 and 21, respectively) as well as between the fifth and sixth heating resistors (17, 18) to the other two phase lines (2 and 3, respectively), and the two ends (29, 30) of the chain each forming one Y-point (star point), by being connected to a junction point (14 and 13, respectively) between the second and third, or between the fourth and fifth heating resistors, respectively, the partial-load switch (27) being arranged in the connection (26). <IMAGE>
Patent DE-3917209-A1 (DE)
Title: Servo-assisted activating unit for anti-lick braking system - has intermediate piston transmitting force to brake pedal by elements passing through control valve and bearing against striking plate
Inventor: SCHONLAU JUERGEN DIPL ING
IPC: B60T8/44
Filed: 1989-05-26
Abstract: The activating unit for an anti-lock braking system has a master cylinder (2) connected to a vacuum servo-unit (1). The primary piston (19) of the master cylinder consists of an inner piston (20) guided in an outer piston (21). An intermediate piston (16) slides on the outer piston and  forms a chamber (50) with the housing of the master cylinder.  Forces generated in the chamber are transmitted to an activating rod (3) by at least two elements (33) passing through the control valve housing (30) and lying a short distance from a striking plate (34) fixed to the activating rod. ADVANTAGE - More compact unit.
Patent DE-3921851-A1 (DE)
Title: Octal multiplier circuit with binary multiplicand input - contains only 2 dual full adders and 5 dual half adders
Inventor: MERKLE PAUL
IPC: G06F7/52
Filed: 1989-07-03
Abstract: An octal multiplier circuit contains fewer than five dual full adders (3) and fewer than eight dual half adders (4, 5). It can be designed to require only two dual full adders and only six or five dual half adders. The circuit can be designed to form a  square circuit. The multiplicand arrives in binary coded form at one input and the multiplier, which can also be binary coded, at the other input.  The binary coded product appears at the output. USE/ADVANTAGE - Octal numerical multiplier contains only two dual full adders and five dual half adders.
Patent DE-3922089-A1 (DE)
Inventor: LEMAIRE HANS-GEORG DR
IPC: C07K14/525
Filed: 1989-07-05
Abstract: Novel proteins have a molecular weight of approximately 42.000 daltons and the amino acid sequence Xaa Thr Pro Tyr Ala Pro Glu Pro Gly Ser Thr Cys Arg Leu Arg Glu on their terminal N, where X denotes a hydrogen atom, a phenylalanine (Phe) residue or the amino acid sequences Ala Phe, Val Ala Phe, Gln Val Ala Phe, Ala Gln Val Ala Phe, Pro Ala Gln Val Ala Phe or Leu Pro Ala Gln Val Ala Phe. These proteins have a therapeutic effect.
Patent DE-3922715-A1 (DE)
Title: Motor-vehicle mudguard with splash protection
Inventor: WEIGL ADOLF
IPC: B62D25/16
Filed: 1989-07-11
Abstract: The invention relates to a motor-vehicle mudguard with splash protection which, by means of parallel webs, which point towards the wheel and extend essentially transversely to the direction of travel, forms channels, which are open towards the wheel and in which the precipitated splash water runs off laterally. The mudguard is characterised in that grooves are constructed at the free ends of the webs, which grooves are open at the top and are formed in such a manner that the water splashing off the wheel can enter as freely as possible into the channel between adjacent grooves and after reflection within the channel is caught in the grooves.
Patent DE-3927558-A1 (DE)
Title: Encapsulation of electronic modules - improved by reverse heat flow and vibration
Inventor: ANFT GERD DIPL ING
IPC: H01C17/02
Filed: 1989-08-21
Abstract: Electronic modules, specially variastors (1) consisting of the module proper (2) and two parallel radial connecting wires (3,4) are embedded in an insulating plastic material by dipping or by powder deposition. The preheated modules are dipped at least once by a band (10) in the plastic powder (20) with a reversed heat flow, i.e. the wires are heated e.g. by a descending heat flow of infrared radiation, induction or hot air (as shown dotted) which heats the wires (3,4) more and prevents the tapered ends at the apex of the funnels (23,24). This can be assisted by vibration at a frequency of 50Hz. ADVANTAGE - This replaces the tapered lacquer ends by a rectangular finish and saves any subsequent fettling.
Patent DE-3938489-A1 (DE)
Title: Self-contained wall-mounted relay-switch - has sealed body with latchable contacts and ON display light
Inventor: DOLD HERBERT ING GRAD
IPC: H01H9/16
Filed: 1989-11-20
Abstract: A magnetic relay (20) is contained behind a sealed diaphragm (38) in a flush-mounted wall cavity. The relay armature carries a contact pair (34, 36) which may be used for latching the relay on. An indicator lamp (54) is also mounted in the relay housing. The relay is operated manually from a sprung pressbutton mounted centrally under the diaphragm and the button carries an insulated lever (46) acting as a light conductor to display the lamp indication through a translucent window over the button centre (56). USE - Remote latchable wall switch in industrial or domestic installations.
Patent DE-3939173-A1 (DE)
Inventor: MANSS AUGUST
IPC: B62B3/10
Filed: 1989-11-27
Abstract: In a nestable luggage cart which can be nested with the same and consists of a loading surface which is bounded by a frame which is U-shaped in top view and supported against the floor at the front end by means of a castor wheel and at the rear end by means of two fixed castors and is formed essentially by bearing rods and of a slide frame which projects beyond the two fixed castors, the loading surface (2) is formed by two parallel bearing rods (11) which enclose between them a longitudinally directed insertion space (14) for the castor wheel (5) of the cart to be inserted and is arranged so as to drop downwards as a whole towards the rear fixed castors (7), the bearing rods (11) forming the loading surface (2) being angled upwards in the region of their rear end and being supported against the longitudinal spars of the loading surface frame (1) in the region of this angling by means of struts (16). <IMAGE>
Patent DE-3940824-A1 (DE)
Title: Appts. for trapping harmful gases in moulding foam - traps foam residues and then passes fluoro-hydrocarbon gases out to condenser where they are collected
Inventor: EULE WERNER
IPC: B29C44/34
Filed: 1989-12-11
Abstract: Foaming appts. for use with materials plus foaming agent, has at least one mould with at least one vent which has a device for trapping non-atmospheric gases and fluoro-hydrocarbons in partic. the appts. being esp. intended for producing foam doors or bodies of refrigerators. A condenser for the non-atmospheric gases is located betwen the vent and trapping device. The polymer is foamed in moulds (1) each of which has at least one vent (2) connected to a collecting chamber (3) for e.g. foam residues. This chamber is connected (4) to a valve (5) whose main pipe leads (6) to the low pressure side of a vacuum pump (7) the outlet of the pump is connected (8) to a condenser (9). Harmful gases from the foaming agent are condensed here (9) and are collected in a container (11) whose top leads to the atmosphere through a filter (12) to absorb the non-atmospheric gases. The side outlet of the valve (5) leads to a bypass (13) and the inlet to the condenser (9). ADVANTAGE - The layout is a simple system for sepg. harmful gases out of the foaming agent used.
Patent DE-3943414-A1 (DE)
Inventor: FUCHS HARALD DR
IPC: G01Q80/00
Filed: 1989-12-30
Abstract: The invention relates to a method for storage of information units in the nanometre domain by dimensionally changing the surface of a semiconducting laminate material without changing the atomic order.
Patent DE-4001622-A1 (DE)
Inventor: GRUBER PETER DIPL CHEM DR
IPC: A61K9/48
Filed: 1990-01-20
Abstract: Pimobendan dosage forms for oral administration contain citric acid, ensuring constantly good absorption even with large pH variations in the gastrointestinal tract.
Patent DE-4003939-A1 (DE)
Title: Noble metal alumina catalyst contg. oxide promoter for gas purificn. - doped with base metal for cold start property and resistance to lean gas
Inventor: DOMESLE RAINER DR
IPC: B01J23/89
Filed: 1990-02-09
Abstract: Catalyst for purifying i.c. engine exhaust gas has an Al2O3 support of the transition series, which contains 3-70 (wt.)% CeO2, 0-20% La2O3, opt. mixed with other rare earth metal oxides, 1-20% ZrO2, 0-10% Fe2O3 and 0-20% NiO as promoter, and has an active phase of 0.02-3% Pt and/or Pd and Rh, with a ratio of Pt and/or Pd and Rh of 1:2 to 15:1, pref. 1:1 to 3:1 and opt. a wt. ratio of Pt and Pd of 10:1 to 1:5. The opt. lattice-stabilised support is impregnated with a soln. of a promoter cpd. and/or mixed with a suspension of oxides, hydroxides or carbonates of the promoter elements and heated in air at 300-900 deg.C, then impregnated with a soln. of the noble metal cpds.,dried and opt. activated in a gas contg. H2, opt. under hydrothermal conditions, at 250-1050 deg.C. The catalyst contains base metal(s), i.e. Li, K, Rb, Mg, Ca, Ba, La, Ce, Pr, Nd, Sm, Fe, Co and/or Ni, in an amt. up to 5 times the total amt. of noble metal; and is prepd. by impregnating the support contg. promoter with a soln. (A) of Pt and/or Pd cpd(s). corresp. to at least 30% of the total amt. of Pt and/or Pd, drying and activation, then impregnating with a soln. (B) contg. Rh cpd. opt. the rest of the Pt and/or Pd cpd. and base metal cpd(s)., followed by drying and activation.
Patent DE-4004669-A1 (DE)
Title: Seismic vibration meter - with silicone oil filled cube monitored by three=dimensional light barriers
Inventor: HAUCK MARTIN
IPC: G01V1/18
Filed: 1990-02-15
Abstract: A vibration meter uses instead of a seismorgraph a trans-parent cube, filled with a coloured liquid (1), pref very low-viscosity silicone oil, within a vessel with three light emitters (2) and sensors (3), arranged in three planes at right angles to each other. Two water-levels (4) and three adjustments screws (5) are used to level up the cube. Power is supplied through a plug socket (6). ADVANTAGE - This permits the recording of seismic vibration of the soil in three dimensions and is simple to produce.
Patent DE-4012123-A1 (DE)
Title: Hand knitting needle - has coil at one needle point to give stitch counting action
Inventor: NEUL JUERGEN
IPC: D04B3/02
Filed: 1990-04-14
Abstract: To count the stitches while hand knitting yarns, the point of a knitting needle consists of a coil and a core, moulded into plastics or covered by other claddings. The coil can be without a core, and the coils can be of different materials. The coils can be integrated on or in one needle and the other needle is fitted with magnets, in the pair of needles. Where the coil forms the needle point, this can be permanent, adjustable or removable. The coil can be simply wound round the needle point, and micro light sensors can be fitted to the points for colour selection. The needles can also be connected to a stitch counter. ADVANTAGE - The assembly gives a counting facility integrated into the needle point or forming the needle point.
Patent DE-4013889-A1 (DE)
Title: Additional retractable rear view mirror for vehicles - has first mirror comprises housing for second mirror, which retracts, rotates and may be locked in position
Inventor: BAUER PETER
IPC: B60R1/078
Filed: 1990-04-30
Abstract: A bracket is attached to the vehicle body (1), having a  retractable wing mirror. The bracket comprises a housing (2) with one fixed rear view mirror (2') and a second retractable rear view mirror (3), which rotates in a vertical and horizontal direction and may be locked in position. The retraction mechanism may be mechanically or electrically driven, and the mirror housing may be of metal or plastic construction. ADVANTAGE - Requires no external attachment or adjustment.
Patent DE-4017112-A1 (DE)
Title: Control method for plasma discharge coating - uses unbalanced magnetron cathode and discharge voltage regulation by field coil current
IPC: C23C14/35
Filed: 1990-05-28
Abstract: In a method of control of coating of substrates by condensation of particles from a plasma produced by gas discharge, an unbalanced magnetron cathode, pref. very unbalanced cathode, is used and the discharge voltage is regulated by means of the current flowing in a magnetic field coil, surrounding a permanent magnet arrangement. ADVANTAGE - Uniform coating without target poisoning.
Patent DE-4017274-A1 (DE)
Title: Magnetic separator for powders, etc. - drops material between HF-energised sensor coils which react to presence of magnetic particles and divert them into separate channel
Inventor: KOEHNLECHNER RAINER DIPL ING D
IPC: B07C5/344
Filed: 1990-05-29
Abstract: EQuipment to recognise and separate metallic particles from powders, which are e.g. allowed to fall from a container to its user equipment, has a casing to take a feed, a sensor to detect metallic particles in the flow of powder and a sortingm system activated by the sensor to shut off the flow passage and divert material containing metal through another outlet and into a collector. The sensor concerned consists of a number of coils with slots and has an inlet grill to distribute the powder feed to the coils. ADVANTAGES - The equipment is extremely sensitive to the  presence of metallic particles. It is suitable for use with granules or powders.
Patent DE-4019539-A1 (DE)
Title: Permanent anti-wetting coating prodn. on surface esp. of orifice plate - for ink jet printing head, by coating with silicone oil and crosslinking in plasma
Inventor: QUELLA FERDINAND DR
IPC: B05D3/14
Filed: 1990-06-19
Abstract: Prodn. involves (a) applying a thin film of a silicone oil (I); and (b) treating the film in a plasma until the film has the required deg. of chemical crosslinking. (I) pref. contains polysiloxanes, pref. polydimethylsiloxane, esp. with hydrophilic end gps.. The film is 50 nm to 2 microns thick. (I) can be applied by gas phase deposition; by stamping; or by immersing the substrate in a (I) soln.. The film is treated in a plasma contg. O2 and opt. also an inert gas, pref. at normal pressure and temp. and with a h.f. plasma. When used for coating an orifice plate, the ink channels not to be coated are sealed before applying the (I) film. USE/ADVANTAGE - The process is claimed for coating the orifice plate of an ink jet printing head. It is permanent and can be applied easily and to surfaces of any shape and any material, in thicknesses to suit the application.
Patent DE-4021859-A1 (DE)
Title: Complex electrical circuitry with two function modules - extends reset signal provided by one module beyond point of effect of reset signal provided by other module
Inventor: SCHWINN JUERGEN DIPL ING
IPC: H03K17/22
Filed: 1990-07-09
Abstract: Each module (F1,F2) incorporates a reset circuit (R1,R2) supplied with the supply voltage sequentially to provide the reset signal (2,5) for bringing the  components of the respective function module into a defined initial position. The specific reset signal (5) provided by the reset circuit (R2) of the second function module (F2) is extended beyond the reliable point of effect of the reset signal (2) provided by the reset circuit (R1) for the first function module (F1). ADVANTAGE - Prevents transfer of noise signals from one module to the next.
Patent DE-4023577-A1 (DE)
Title: New 2-hydroxyethyl acrylate] or methacrylate] copolymers - with acrylamido carboxylic acid derivs., forming hydrogels with high water capacity
Inventor: PIEH STEFAN DR
IPC: C08F220/56
Filed: 1990-07-25
Abstract: Copolymers (I) of 2-hydroxyethyl acrylate (HEA) or 2-hydroxethyl methacrylate (HEMA) with acrylamido carboxylic acid derivs. of formula CH2=CH-CO-NH-Q-COOX (II), including crosslinked copolymers, are new, (where X = alkali metal, NH4 or 1-3C alkyl; Q = opt. substd. 1-18C alkylene). (II) is specifically Na 4-acrylamidobutyrate (AMB-Na), Na 10-acrylamido-undecanoate (AMU-Na) or Na 2-acrylamido-2-hydroxyacetate (AHA-Na). USE/ADVANTAGE - (I) form hydrolgels that are useful as controlled-release pharmaceutical carriers, enzyme-immobilising carriers or membranes. (I) have high water absorption capacities, e.g. 63-99% which may be increased by increasing the proportion of (II).
Patent DE-4026167-A1 (DE)
Title: Input sensor for fingerprint comparison computer lock - has structure of hexagonal light sensors, forming expanding network and is more accurate than conventional video
Inventor: RUX KURT
IPC: G07C9/00
Filed: 1990-08-17
Abstract: The input sensor for a fingerprint comparison computer lock  has an insect eye which operates like a retina chip. A finite light sensitive field contains hexagonal sensors in contact without gaps to form a sharply bounded pattern. Each individual sensor in the field has an output line  which can pass a positive or negative signal and forms the centre of its surrounding lines in an expanding network increasing in steps of six output lines up to the limits of the structure. The network can be VLSI-ed on a chip. A processor (neuron) is directed to each net to register the relative frequency distribution of the . binary entered data from a middle point (A) in a fixed sequence. USE/ADVANTAGE - More accurate than conventional scanners such as video systems.