baber/WOPTO huggingface dataset:
Patent DE-3838568-A1 (DE)
Title: Joint prosthesis
Inventor: PLANCK HEINRICH DR ING
IPC: A61F2/34
Filed: 1988-11-14
Abstract: Joint prosthesis which has a joint member comprising a concavely arched sliding surface and forms or has a basic body having a matrix of a polymeric plastic. In order to improve the mechanical properties the basic body has at least one arched reinforcing layer located at a distance from its sliding surface and formed by incorporation of at least one uncrimped thread, oriented in a predetermined manner, in the matrix.
Patent DE-3906838-A1 (DE)
Title: Method for driving, in particular, a 5-phase stepping motor
Inventor: SCHNEBEL GERHARD
IPC: H02P8/22
Filed: 1989-03-03
Abstract: A 5-phase stepping motor is operated in the microstep-constant-current mode with a half-bridge output stage, the phase current in at least two windings being set for one microstep such that, on the one hand, the phase currents are balanced with respect to the earth point while, on the other hand, a predetermined step-angle position is reached. The advantages of the simple half-bridge circuit are therefore linked to the advantageous capabilities of the microstep mode.
Patent DE-3908772-A1 (DE)
Inventor: GATTNAR JOHANN-ERNST
IPC: F41A27/10
Filed: 1989-03-17
Abstract: In a ball mounting, especially for fitting in armoured glass panes (1), with a ball-type housing (2), a ball (3) rotatably fitted in the spherical hollow (6) of the housing (2) and an attachment secured to the ball (3) for a hand firearm, in which the ball (3) and the attachment have an aligned bore through which the shots (31) fired from the weapon may pass, the stress on the pane (1) is reduced in that the attachment is flexibly spring-mounted so as to be longitudinally movable. The ball mounting may therefore also be used in a pane (1) which has been shot-damaged on the outside, without being torn from its securing system.
Patent DE-3909539-A1 (DE)
Title: High temp. oxidn. resistant coated metal article
Inventor: ANDRUS RONALD LOUIS
IPC: A61F13/02
Filed: 1989-03-22
Abstract: A coated article, for use at above 1000 deg.C in an oxygen-contg. environment, consists of a Ni, Co, Cr or Fe based alloy substrate and an oxygen barrier coating.      The coating consists of either (a) a glass-ceramic comprising (by wt.) barium silicate (20-65% BaO and 25-65% SiO2) max. 50% additive and max. 5% B2O3 + R2O (R = Na, K, Li) or strontium silicate (20-60% SrO and 30-70% SiO2), max. 40% additive and max. 5% B2O3 + R2O, the additive comprising one or more of up to 15% Al2O3, up to 15% ZrO2, up to 15% Y2O3, up to 25% MnO, up to 25% NiO, up to 30% MgO, up to 30% CoO and up to 40% iron oxide; or (b) a glass-ceramic having a main crystalline phase selected from barium silicate-type, strontium silicate-type and cristobalite phase and contg. cristobalite crystals conc. near the interface between the glass-ceramic and the metal substrate.
Patent DE-3911089-A1 (DE)
Title: Metering device
IPC: A45D40/02
Filed: 1989-04-06
Abstract: A metering device, in particular for cosmetic products in a cream-like or liquid state, in which two separate containers are joined together, closable removal openings being assigned to the individual containers, is to be designed in such a way that, when using different preparations, the latter can be removed simultaneously in different, but separately precisely defined quantities. For this purpose, provision is made according to the invention for each container to be assigned a piston which can be moved in a channel and conveys a particular quantity of the respective product out of the container as a function of its stroke, the strokes of the two pistons being jointly variable but to a different extent, if appropriate.
Patent DE-3915768-A1 (DE)
Title: Extracting soil specimen from covering of deposit - ramming hollow core tube through all layers of covering whilst reducing mineral refilling
Inventor: NELLEN HEINRICH ING GRAD
IPC: E02D1/04
Filed: 1989-05-13
Abstract: Soil specimens are extracted by first ramming a hollow core tube (6) through all the layers (9-11) of the covering with one thrust or a series of thrusts. The core tube is fully removed form the covering to extract the specimen. The cylindrical wall of the hole thus formed is roughened by forming longitudinal slots in it and the hole at least partially filled with reduced mineral material. Each filling is stamped solid. USE/ADVANTAGE - For economically extracting samples from several layers of mineral material, esp. clay covering deposit of desulpherizing plaster, and maintaining seal.
Patent DE-3916822-A1 (DE)
Title: Quick-acting press for the bonding of boards and the production of sandwich and hollow boards
Inventor: CECCHI GIANFRANCO DR
IPC: B29C43/20
Filed: 1989-05-23
Abstract: Quick-acting press for the bonding of boards, such as laminated boards, veneers, plywood boards or the like on pressboards, and the production of sandwich and hollow boards, having press platens (3) which can be moved away from one another in pairs for the loading and removal of the products which are to be or have been pressed, without the pressing force exerted on the remaining press platens (3) being substantially altered, the devices (8) by means of which the press platens (3) are moved away from one another including cylinders of double design (11, 11A) which act together with the pressure cylinders (4) and the compensating cylinders (12). <IMAGE>
Patent DE-3916947-A1 (DE)
Title: Electrical switching element
Inventor: PRUESS LUDWIG DIPL ING
IPC: H01H13/52
Filed: 1989-05-24
Abstract: In the case of an electrical switching element (1) having a housing (2) which is like a hollow body and in which an operating element (6) is guided in at least one guide hole (4, 5), which operating element (6) can be displaced with at least one bridge contact (14) from an original position against the spring force of at least one first spring element (10), which can be prestressed, in order to act on electrical contacts (15, 16), and which, after acting on the electrical contacts (15, 16), can be displaced against the spring force of at least one second spring element (17) beyond the stroke which is necessary for acting on said contacts, a compact construction is made possible by the first and second spring elements (10, 17), the electrical contacts (15, 16) and the bridge contact (14) being arranged between the guide holes (4, 5) of the operating element (6). <IMAGE>
Patent DE-3918457-A1 (DE)
Title: Closure cap for a liquid container, in particular brake-fluid container of a motor vehicle
Inventor: WAGNER BERND-DIETER
IPC: B65D51/16
Filed: 1989-06-06
Abstract: The closure cap (10) has an inner contour (24) for attachment to a filling nozzle (20) of a liquid container (2) provided with a corresponding outer contour (25). In this case, a lower end face (11) of the closure cap (10) faces the end of the filling nozzle (20). In the installed position, a flat annular seal (18) is arranged between the lower end face (11) and the upper end of the filling nozzle (20). Formed on the lower end face (11) of the closure cap (10) are a radially outer rib and a radially inner annular rib (12, 13), which ribs have mutually offset interruptions (14 and 15, 16, 17), form baffles on a flow path (26) for air pressure compensation between the interior of the closure cap (10) and the surroundings, and rest on the seal (18). The radially inner rib (13) lies lower than the radially outer rib (12), so that the two ribs (12, 13) together hold the seal (18) in a position in which its upper side slopes down radially from the outside to the inside. <IMAGE>
Patent DE-3918956-A1 (DE)
Title: Endotracheal tube
Inventor: ROEWER NORBERT DR
IPC: A61M16/00
Filed: 1989-06-09
Abstract: Endotracheal tube for anaesthesia which is designed - in particular for paediatrics - without tracheal cuff. In order to make it more difficult for anaesthetic gas to flow out, the tube is provided with a suction orifice in the pharyngeal region. Moreover, a flow obstacle can be provided above the suction orifice.
Patent DE-3922467-A1 (DE)
Title: Semiconductor memory device and process for its production
Inventor: WAKAMIYA WATARU
IPC: H01L27/108
Filed: 1989-07-07
Abstract: The integration density of a semiconductor memory device is to be increased by reducing the insulating regions between the individual semiconductor elements. In a DRAM with capacitor cells in layers one above the other, elements are separated from one another by a field screening insulating structure. The field screening insulating structure is formed in such a way that it surrounds the memory cell (1) in the DRAM both in the X direction and in the Y direction. The field screening insulating structure has an insulating electrode layer (13), which is formed on a semiconductor substrate (4) between neighbouring memory cells (1, 1), an insulating film being inserted in between. Two impurity regions (5, 5), which are contained in neighbouring memory cells, and the insulating electrode layer (13) represent an MOS transistor. A voltage for maintaining the MOS transistor in the normally turned-off state is applied to the insulating electrode layer. A section of the multilayer-laminated capacitor (3) extends as far as the insulating electrode layer (13). One of the source or drain regions (5, 6) of the MOS transistor is formed in self-alignment, a side wall spacer (19a), which is formed on an insulating film on a side wall of the field screening electrode, being used as a mask. Such semiconductor memory devices can be used for LSI memories of all types. <IMAGE>
Patent DE-3923967-A1 (DE)
Title: Braille writing module with piezoceramic-strip pin actuators - utilises horizontal displacement of cupped heads for raising and lowering pins arranged in matrix
Inventor: ZIMMERMANN ROBERT
IPC: G09B21/00
Filed: 1989-07-20
Abstract: A 2 x 4 matrix array of pins (3) sunk into an ergonomically shaped cover (2) with retraction springs (12) is operated selectively by the heads (7) of piezoceramic actuators (6) in chambers within a thermoplastic body (1a). Operating voltages are supplied to pins (9) of a base connector. Each head (7) has a cup-shaped recess in which the lower end of a matrix pin (3) is seated. Other numbers and arrangements of pins are possible, e.g, for switch contact operation. ADVANTAGE - Reliable information is supplied irrespective of pressure on pins (3), whose locking is facilitated by shape of heads.
Patent DE-3925625-A1 (DE)
Title: Clocked constant-power source esp. for timing relay - has output MOSFET switch protected by bipolar transistor for provision of load current via storage inductor
Inventor: METZNER GERD-L
IPC: H02M3/156
Filed: 1989-07-31
Abstract: A smoothed DC voltage of 15 to 265V, or an unfiltered DC input of 375V peak (or more) derived from 50 or 60 Hz AC, is reduced (R1,D1,D2) to about 10V for an integrated timing circuit (12). A capacitor (C2) is charged to a first threshold voltage through one resistance (R2) and discharged to a second threshold voltage through another resistance (R6), chosen to give a discharge more rapid than that of the storage inductor (L). ADVANTAGE - Source using conventional switching regulators features low power losses and delivers constant power over wider range of input voltages.
Patent DE-3926161-A1 (DE)
Title: Producing prodn. of veneered furniture boards - by gluing wood strips to board edges
Inventor: VIETMEYER ADOLF
IPC: B32B3/02
Filed: 1989-08-08
Abstract: The method is for mfr. of furniture boards. The boards may be particle-boards either veneered or with decorative film overlays and profiled edges. The method involves gluing strips (2) of real wood on at least two opposite edges of the particle board (1) before the veneer (3) or overaly is applied to the board (1). Then the whole surface of the particle board (1), including the wood strips (2) is coated with veneer (3) or overlay, and then the desired profiling is done in the edge region. USE/ADVANTAGE - Improved method of prodn. for furniture boards, with reduced danger of veneer or overlay coming loose in the edge region.
Patent DE-3929464-A1 (DE)
Inventor: ARIKAWA TETSURO
IPC: B60T8/48
Filed: 1989-09-05
Abstract: In anti-skid/anti-slip brake control apparatus for a vehicle, fluid pressure control valve devices 8, 14, 15, 21 receive instructions from a control unit 47 for controlling the brake fluid pressures of the front and rear wheel brake apparatus 10a, 10b, 20a, 20b. A first fluid pressure pump 32 supplies brake fluid from hydraulic reservoir means 3, 23a, 23b into main conduits 5, 11 connecting the tandem master cylinder 1 with the fluid pressure control valve devices 8, 14, 15, 21. A first valve device 12 is arranged between the tandem master cylinder 1 and the first fluid pressure pump 32 in the main conduits connected through the fluid pressure control valve devices 8, 14, 15, 21 to the front and/or rear brake apparatus, the first valve device 12 being normally in free communication and being changeable over into a position to prevent brake fluid flowing from the discharging side of the first fluid pressure pump 32 towards the master cylinder side when traction slip is detected. A second valve device 6 is arranged between the tandem master cylinder 1 and the first fluid pressure pump 32 in the main conduits connected through the fluid pressure control valve devices at least to the front brake apparatus 10a, 10b, the second valve device 6 being normally in free communication and being changeable over into a position to prevent brake fluid flowing from the discharging side of the first fluid pressure pump 32 towards the master cylinder side in response to excess pressure in conduits. The hydraulic reservoir means comprises a first hydraulic reservoir 3 and a second hydraulic reservoir 23a, 23b. A second fluid pressure pump 29 is arranged in a conduit 28 connecting the first hydraulic reservoir 3 with the second hydraulic reservoir 23a, 23b, the discharging side of which is directed to the suction side of the first fluid pressure pump 32. <IMAGE>
Patent DE-3935961-A1 (DE)
Title: Non jamming feed for hopper - has elastic mountings on hopper and directly coupled vibrator
Inventor: ACHBERGER WALTER
IPC: B65D88/66
Filed: 1989-10-27
Abstract: The hopper (1) is mounted on a support frame (6) via struts (2,3,4) incorporating elastic inserts (10,11,12) which isolate the supports from the hopper vibrations.  The vibrator (16) drives a rod (17) which directly couples to the hopper and loosens any blockages. The feed lines to the hopper are mechanically isolated from the vibrations.  The vibrator is mounted alongside a support strut and has a rigid mounting on the support frame. ADVANTAGE - Simple flow control for hopper.
Patent DE-3936465-A1 (DE)
Title: Coordinate measurement device for optical prop or camera - detects bending of measurement carriage or arm using detector of deviations in incident position of optical reference beam
Inventor: BREYER KARL-HERMANN DR
IPC: G01B5/00
Filed: 1989-11-02
Abstract: The coordinate measurement arrangement has a device for measuring the beding of a metal carriage or arm (7) using a detector (10) which measures the deviation of the incident position of an optical reference beam. The device contains a circuit which processes the a.c. component of the detector signal and determines the instantaneous value of the a.c. signal at the sensing instant. The detector is a difference or quadrant diode. ADVANTAGE - Enables minimal cost, reliable detection and compensation of bending of measurement carriage or arm as result of natural resonance.
Patent DE-3938479-A1 (DE)
Title: Data protecting appts. for data network - uses programme segment capable of withholding permission for use of data from transmission side if user is unauthorised
IPC: H04M11/08
Filed: 1989-11-20
Abstract: The data carrier (1), e.g. a software house's processor, using a data carrier network (2), sends a structured data programme comprising parts (3a,3b) to an apparatus (4) e.g. a user's personal computer. Within the programme is a part (3c) shown as a key symbol, which gives an  ''O.K.'' or ''not O.K.'' to the user's computer for the use of the complete programme (3) or parts of it, and over which the user terminal (4) has no control. ADVANTAGE - Prevents unauthorised use or alteration of transmitted data.
Patent DE-3938758-A1 (DE)
Title: Airport display - uses conductors to determine landing times and calculate required speeds
IPC: G08G5/02
Filed: 1989-11-23
Abstract: The computer generated display for incoming aircraft has nine fields of information, local time, aircraft identification no, departure airport, distance, speed, estimated flying time, estimated landing time, re-calculated landing time, re-calculated speed. In particular, the airport equipment includes computers which collect data from all incoming aircraft, and calculates optimum landing times and required speeds. Preferably, two computers are used to check calculation. USE/ADVANTAGE - Air craft landing equipment at airports -includes waiting time (in loops), environmental pollution and operating costs.
Patent DE-3940261-A1 (DE)
Title: Prodn. of di:substd. urea herbicides and fungicides, e.g. fenuron - by reacting amine with N-alkyl- or N,N-di:alkyl-urea in presence of corresp. alkyl- or di:alkylamine
Inventor: WOERTHER RUDOLF HELMUT DR
IPC: C07C273/18
Filed: 1989-12-06
Abstract: Prodn. of disubstd. ureas (I) comprises reacting an amine RNH2 (II) with an N-alkyl- or N,N-dialkylurea NH2CON(R1)R2 (III) in the presence of an excess of a corresp. alkyl- or dialkylamine HNR1R2 (IV) opt. in a diluent. R = phenyl opt. substd. by halogen, alkyl, alkoxy, aryloxy or trifluoromethyl; or oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, benzoxazolyl or benzthiazolyl opt. substd. by halogen, alkyl, alkoxy or trifluoromethyl; R1, R2 = H or alkyl or R1 + R2 = butylene or pentylene; except cpds. where R1 = R2 = H. The diluent is pref. trichlorobenzene. Cpds. (II), (III) and (IV) are pref. used in moalr ratio of 0.5-0.7:1.2-15. N,N-Dimethylurea is the pref. cpd. (III) and dimethylamine is the pref. cpd. (IV). USE/ADVANTAGE - Cpds. (I) are herbicides and plant fungicides, e.g. fenuron, siduron, monuron, diuron, neburon, etc. The method gives pure cpds. (I) in contrast to the process of DE 1064051 where mixts. are obtd.
Patent DE-4008618-A1 (DE)
Title: Holder for car radio telephone handpiece - has spring and spring-loaded pressure block cooperating with opposite end faces of telephone handpiece
Inventor: SCHMITT NORBERT
IPC: B60R11/02
Filed: 1990-03-17
Abstract: The holder comprises a moulded shell (1) which has a respective bridge (5, 24) at its opposite ends (3, 6), for gripping the inserted radio telephone handpiece (2). One end (3) of the holder (1) has a spring (8) which acts against the end of the telephone handpiece (2), with a spring-loaded press block (10) at the second end of the holder (1) which can move perpendicular to the base (13) of the holder (1). Pref. the pressure block (10) is provided by the edge of a spring-loaded pivot plate (9) incorporated in the base (13). ADVANTAGE - Secure retention of telephone handpiece during vehicle motion.
Patent DE-4008931-A1 (DE)
Title: Control of power supply to electric sauna heater
Inventor: PERAELAE REIJO
IPC: A61H33/06
Filed: 1990-03-20
Abstract: Heating elements (1A1, 2A1 etc.) are divided into two gps. assigned respectively to the heat storage mineral space (1) and hot air duct (2), served by three-phase AC supplies via separate contactors (6,7) and multipole relays (4,5). An auxiliary switch (12) in conjunction with store and duct thermostats (3, 11) provides sequential switching of the relays to supply max. current to the duct heaters (2A1-2A3), 2B1-2B3) for a period before the store heaters (1A1-1A3, 1B1-1B3) are stepped-up from half to full power.
Patent DE-4018612-A1 (DE)
Title: Twin-tube air intake for multi-cylinder combustion engine - has adjustable distributor in smaller tube whose length determines engine speed range corresp. to max. power
Inventor: KUNZEMANN RALF DIPL ING
IPC: F02B3/06
Filed: 1990-06-11
Abstract: Air is admitted by a throttle flap (3) to a distributor (1) from which two tubes (4,5) lead to a junction (13) at the entrance to the inlet duct (7) where fuel is injected (21) upstream of the inlet valve port (6). A smaller distributor (8) in one tube (5) incorporates a rotary disc (10) whose movement alters the total cross-section of the intake and the eigenfrequency of oscillatory flow, to ensure that the cylinder is filled even when the engine is running at max. speed. ADVANTAGE - Max. filling of cylinders is achieved throughout range of engine speeds.
Patent DE-4021398-A1 (DE)
Title: Extractor for underground mine - has rams in groups thrusting against face and reducing coupling free movement
Inventor: PLUM DIETMAR
IPC: E21D23/14
Filed: 1990-07-05
Abstract: The extractor is for an underground coalmine, having an extractor (2) and a conveyor trough in sections hinging together for a limited amt.. Rams (9) thrust the conveyor and machine towards the coal face (24) and are controlled by valves.  They have individual systems measuring their piston strokes, and are supported by walling plates (15,16). The rams are combined into groups, one of which (21) thrusts and holds the machine against the face, while the other (22) reduces the amt. of free movement in the couplings (17,20) between the walling plates, conveyor (3) and machine by generating a pre-stressing force. ADVANTAGE - Improved adjustment of cut and reduced wear at coupings.
Patent DE-4022741-A1 (DE)
Title: Multilayer polyurethane film for prodn. of covering layers - comprises at least two layers of thermoplastic polyurethane with different shore hardness
Inventor: ZEITLER GERHARD DR
IPC: C08J5/18
Filed: 1990-07-18
Abstract: Multilayer polyurethane film (I) is claimed, in which at least 2 of the layers consist of thermoplastic PU (TPU) with different Shore hardness. Pref. (I) is double-layer film with layers of different Shore hardness. At least one layer (1) is TPU with Shore A hardness (SAH) = 60-98 and at least one layer (2) is TPU with Shore D hardness (SDH) = 50-74, pref. based on polyether-polyol and polyester-polyol, respectively, and pref. forming the upper or patterned layer (1) and the lower layer (2). (I) is 0.2-2.5 mm thick, and the separate layers are 01.-2.4 mm thick, opt.  the film material can be a thermoplastic moulding material contg.  at last 50 wt.% TPU and up to 50 wt.% ABS copolymer, As copolymer, styrene copolymer modified with acrylate rubber,  polyester, polycarbonate, polyamide, or a mixt. of at least 2 of these plastics; (I) is produced by coextrusion. USE/ADVANTAGE - (I) is useful for the prodn. of covering layers by thermoforming (claimed). Cost-effective process for the prodn. of (I). The film has good thermal and light stability, and can be backed with PU foam without undesirable interactions, or thermoformed over a wide temp. range, e.g.  to produce "mould skins" for automobile dashboards, glove boxes, etc.
Patent DE-4026612-A1 (DE)
Title: Centrifugal manure spreader - has storage container divided into two funnel shaped outlets above centrifuge discs
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C15/00
Filed: 1990-08-23
Abstract: A centrifugal manure spreader has a storage container which is divided, in its lower part, into two funnel shaped outlets immediately above two power driven rotating centrifuge discs. From below two power driven rotating agitator shafts project into the outlets, and between the two outlets a roof like partition is formed, the sloping sides of which (40) have shaft like indents (37) towards the centre, and the sides (40) run obliquely upwards. USE/ADVANTAGE - Provides a regular and even supply of manure to the centrifuge discs.