baber/WOPTO huggingface dataset:
Patent DE-3485804-D1 (DE)
Inventor: CHAUM DAVID PROF DR
IPC: H04L9/00
Filed: 1984-08-13
Granted: 1992-08-13
Abstract: A cryptographic system allows, in one exemplary use, a supplier (101) to cryptographically transform a plurality of messages responsive to secret keys; the transformed messages to be digitally signed by a signer (102); and the signed transformed messages returned to the supplier (101) to be transformed by the supplier (101), responsive to the same secret keys, in such a way that a digital signature related to each original message is developed by the supplier (101). One important property of these systems is that the signer (102) can not determine which transformed message received for signing corresponds with which digital signature-even though the signer (102) knows that such a correspondence must exist.
Patent DE-3561853-D1 (DE)
Title: Process for the preparation of a cable-sealing composition
Inventor: GORKE KLAUS DR
IPC: C09D5/25
Filed: 1985-08-31
Granted: 1988-04-14
Abstract: The present invention relates to a method of manufacturing sealing compositions for electric wires, wherein one mixes together a filler (comprised chiefly of an alkaline earth carbonate), a binder component, and possibly additives of the type common in the art. The binder component is a combination of two binders: binder I is a homopolymer of 1,3-butadiene or a copolymer which is essentially obtained from 1,3-butadiene; and binder II is a polymer based on 1,3-butadiene and having laterally extending succinic anhydride groups. The sealing compositions are distinguished by good processibility and high dielectric strength.
Patent DE-3565730-D1 (DE)
Title: Vertical magnetic brush developing apparatus and method
Inventor: BROOKS JEFFREY BRADFORD
IPC: G03G15/09
Filed: 1985-01-24
Granted: 1988-11-24
Abstract: A magnetic brush developing apparatus is described which comprises a vertically positioned magnetic supply roll (26), a similarly positioned magnetic developer roll (28), and supply means such as a hopper (24) for supplying magnetically attractable developer particles to the lower portion of the supply roll. The supply roll (26) is provided with a magnetization pattern in which the magnetic poles are arranged in helical bands with respect to the roll axis. The developer roll (28) has a symmetric magnetization pattern in which the magnetic poles are arranged in straight linear bands parallel to the roll axis. Developer particles move circumferentially and vertically upward on the surface of the supply roll (26) and are transferred to the surface of the developer roll (28) across a narrow vertical gap separating the two rolls. A doctor blade (66) associated with the supply roll (26) returns excess developer from the supply roll (26) to the hopper (24). A second doctor blade (76) associated with the developer roll (28), and positioned in proximity to the gap separating the supply roll (26) from the developer roll (28), removes excess developer from the developer roll and allows the developer so removed to be magnetically attracted back to the supply roll (26).
Patent DE-3573638-D1 (DE)
Title: Fuel injector
Inventor: HLOUSEK JAROSLAW DIPL ING
IPC: F02M57/02
Filed: 1985-01-18
Granted: 1989-11-16
Abstract: 1. Fuel injection nozzle comprising a valve member which is urged against a valve seat in a valve chamber by means of a valve member spring (14) and the end of which remote from the valve seat extends into a chamber (15) that can be filled with fuel and accommodates the valve member spring (14), and a solenoid valve (8) for controlling the injection which in its open position connects the pressure chamber (9) of an injection pump with a spill conduit, characterised in that in a pumping chamber (31) of the fuel injection nozzle a plunger (13) is provided, and the pumping chamber (31) is connected to a conduit leading from the pressure chamber (9) of the injection nozzle to the valve chamber, and the end of the plunger (13) extending remotely from the pumping chamber rests upon the valve member spring (14), that the fuel pressure in said conduit acts upon the other end of the plunger (13), that the active cross-sectional area of the plunger (13) is greater than the cross-sectional area of the valve member, and that within the whole range of speed and load the plunger (13) performs its working stroke against the force of the spring before, at the beginning of the injection, the valve member is being lifted.
Patent DE-3573897-D1 (DE)
Title: Lead wire soldering apparatus
Inventor: BENSON FLORENCE G
IPC: B23K1/08
Filed: 1985-12-19
Granted: 1989-11-30
Abstract: A lead wire tinning apparatus comprises a solder wave station which includes a vertical chimney (50) for the upward flow of molten solder (38') and a cover plate (60) for reducing the opening of said chimney in moving direction of components (11) having said lead wires (12, 13). By said cover plate (60) the cross-sectional area of a convex solder wave configuration (61, 62) is reduced (Fig. 5).
Patent DE-3577768-D1 (DE)
Inventor: SAITO KENGO PATENTS DIVISION
IPC: G11B19/28
Filed: 1985-09-18
Granted: 1990-06-21
Abstract: In order to eliminate undesirable slippage of a disc (1) on a turntable (10) of a disc drive which might occur upon effecting driving connection between the turntable (10) and the disc (1), the rotational speed of the turntable (10) is held at a level considerably lower than the normal speed for a predetermined short period of time upon starting to rotate the turntable (10).
Patent DE-3577801-D1 (DE)
Inventor: ELSINGER FRIEDRICH DR
IPC: A61K38/00
Filed: 1985-08-05
Granted: 1990-06-28
Abstract: 1. A method of producing a Factor VIII (antihaemophilic factor, AHF) preparation by heat treatment in the dry state to inactivate possibly present viruses, characterised in that, at the application of elevated temperatures and extended treatment times - corresponding to a temperature of 90 degrees C and a treatment time of 30 hours - the heat treatment of the preparation is carried out in the presence of an oxygen-free inert protective gas or under vacuum, yet in the absence of stabilising agents, in order to largely preserve the biologic activity of the Factor VIII preparation, i.e., a residual activity of at least 0.60.
Patent DE-3583604-D1 (DE)
Title: Epsilon--caprolactam-polymerisation.
Inventor: GABBERT JAMES DELVIN
IPC: C08G69/20
Filed: 1985-12-16
Granted: 1991-08-29
Abstract: A process for polymerizing ε-caprolactam to form a nylon-6 polymer in which a reactant stream containing e-caprolactam and a lactam polymerization initiator is brought into polymerizing admixture with a reactant stream containing ε-caprolactam and a lactam magnesium halide, wherein sufficient 2-oxo-1-pyrrolidinyl compound is added to the admixture either as 2-pyrrolidinone, 2-oxo-pyrrolldinyl magnesium halide or 2-oxo-1-pyrrolidinyl capped initiator compound to enhance the rate of polymerization of the ε-caprolactam.
Patent DE-3583943-D1 (DE)
Inventor: BOISSONNEAULT ROGER
IPC: A61K31/565
Filed: 1985-12-24
Granted: 1991-10-02
Abstract: A method of female contraception comprises sequentially administering 3 compsns. (I)-(III) contg. norethindrone (A) (pref. 0.5-1.5 mg) and ethinyl oestradiol (B) (pref. 10-50 micron).  Compsn. (I) is administered for 4-7 days, (II) for 5-8 days and (III) for 7-12 days. Opt. a compsn. (IV) contg. ferrous fumarate is then administered for 7 days.  The system may be administered in 23-34 day cycles, and each of compsns. (I9-(III) have different proportions of A and B.
Patent DE-3660228-D1 (DE)
Title: Aqueous conductivising composition for conductivising sheet material
Inventor: BARR KEITH WILLIAM
IPC: G03G21/00
Filed: 1986-08-22
Granted: 1988-06-30
Abstract: An aqueous conductivising composition for conductivising paper or other sheet material, for example for producing a conductive base for use in dielectric paper or other electrostatic imaging material, is produced by (a) removing sodium magnesium trifluoride impurity (neighborite) from a synthetic hectorite clay conductivising agent, and (b) adding a binder. These measures reduce dust formation experienced in production or use of electrostatic imaging material incorporating a base which has been conductivised with a synthetic hectorite clay conductivising agent.
Patent DE-3675912-D1 (DE)
Inventor: HERZOG REINHOLD
IPC: C23F13/02
Filed: 1986-07-14
Granted: 1991-01-10
Abstract: PCT No. PCT/AT86/00048 Sec. 371 Date Apr. 24, 1987 Sec. 102(e) Date Apr. 24, 1987 PCT Filed Jul. 14, 1986 PCT Pub. No. WO87/00558 PCT Pub. Date Jan. 29, 1987.A device for the cathodic protection of metal parts in which electrodes and a voltage source are used to charge positively an electrolyte in relation to the metal surface which is to be protected. The electrodes (1) are so designed that they extend linearly and/or superficially over extensive areas of the metal surface to be protected.
Patent DE-3679129-D1 (DE)
Inventor: STREPPAROLA EZIO DR
IPC: C04B41/48
Filed: 1986-09-23
Granted: 1991-06-13
Abstract: A process for protecting marble, stones, tiles, cement and similar materials against the action of atmospherical and polluting agents, by applying a perfluoropolyether onto the surface of the substrate to be protected, said perfluoropolyether having at one or at both ends functional groups capable of acting as anchoring agents for the substrate.
Patent DE-3679563-D1 (DE)
Inventor: MUELLER CLAUS-DIETER
IPC: A47L13/40
Filed: 1986-01-05
Granted: 1991-07-11
Abstract: In order to improve the cleaning effect when cleaning carpets and upholstery fabrics with the aid of suitable cleaning chemicals by means of electrostatic forces, a device is used which has a rotor, made of insulating material and driven by a drive device, and cleaning cushions made of pile fabric or the like and mounted on said rotor. The rotor is formed from two or more flat discs which are connected to one another tightly along their edges, the mutually adjacent flat sides of the discs being provided with a roughened portion in order to form air cushions between them. <IMAGE>
Patent DE-3684212-D1 (DE)
Inventor: MARTIN RICHARD
IPC: B65D5/32
Filed: 1986-08-29
Granted: 1992-04-16
Abstract: A pre-form for a box may be transported flat and then opened out to form a complete box without the need for stapling, glueing, etc. The pre-form defines four side faces 11 and 13 of the box and four flaps 18 and 24 which flaps are folded towards each other on opening out of the box to form the box bottom, which flaps also impart stability to the box. Each first flap 18 is of reduced width remote from its adjacent side face and has a slat 19 extending thereacross to form projecting tabs 19a. On folding the flaps together, the tabs 19a pass through openings in the second flaps 24 subsequently to resist bursting of the box bottom and the ends of the tabs 19a engage strip 29 of side face 11 to resist lozenging of the opened out box.
Patent DE-3688258-D1 (DE)
Inventor: SCHEVE B JOSEPH
IPC: B29C47/02
Filed: 1986-01-30
Granted: 1993-05-19
Abstract: Disclosed is normally solid, gel-free, amorphous to predominantly crystalline, polypropylene characterized by strain hardening believed to be due to molecular chains that have substantial, free-end long branches of propylene units. Also disclosed is a process for making it by high energy radiation of linear polypropylene in a reduced active oxygen environment, maintaining the irradiated material in such environment for a specific period of time, and then deactivating free radicals in the material. Further disclosed is the use of the strain hardening polyproplene in extensional flow operations such as, for example, extrusion coating, film production, and thermo-forming.
Patent DE-3765379-D1 (DE)
Inventor: ALCANTARA PEREZ BERNARDO
IPC: G06K15/16
Filed: 1987-07-20
Granted: 1990-11-08
Abstract: The subject of this invention is the design of a mechanism for the feed of the paper in a flat plotter for drawing, which is cheap and has a high level of operational reliability. The mechanism consists of a reduction motor which rolls up the paper after it has passed through the drawing zone; in the drawing head an optical line reader is fitted which is designed to read a trace made by the drawing tool once the drawing has been completed in one window; when this trace is detected, a stop command is delivered to the rolling-reducer motor. Once the paper feed has stopped, in order to exactly join and continue the drawing of the following window in the correct form, the drawing tool carries out a search for the trace at very low speed. When the line has been detected in this process, the plotter continues with the drawing operation in the correct place.
Patent DE-3768987-D1 (DE)
Inventor: LEEBEEK ANTONIUS CORNELIUS GER
IPC: B65D5/32
Filed: 1987-02-19
Granted: 1991-05-08
Abstract: Two-piece shipping/display container, the lid part (21) of which covers the top and opposite side panels of the tray part (20) and is attached to a partially perforated portion (8) of the lower frame portion of the opposite side panels, said partially perforated portion being torn out when the lid part is removed.
Patent DE-3774097-D1 (DE)
Inventor: VAN DER BOLT ANTONIUS JOHANNES
IPC: H01J29/07
Filed: 1987-11-30
Granted: 1991-11-28
Abstract: The invention relates to a colour display tube having a substantially rectangular display window provided with an upright edge. A supporting frame 18 is suspended in the corner of the upright edge by means of suspension means 19. For damping vibrations a shadow mask 11 which has a skirt 20 is connected to said supporting frame 18 via welds 23 at least near the ends of two oppositely located sides 21 of the supporting frame 18 and the skirt 20 of the shadow mask 11 engages the ends of the other two sides 22 of the supporting frame 18 in a frictional manner.
Patent DE-3778494-D1 (DE)
Inventor: HEBENSTREIT ERNST DIPL ING
IPC: H03K17/082
Filed: 1987-11-10
Granted: 1992-05-27
Abstract: The controller-monitor (6) consists of at least two controllers (10,12) and between these two units there is a pulse transformer (11). The first controller generates pulse chains corresponding to the control signal and the second controller has a regenerator for transforming the pulse chains as received into relevant blocking signals for control of the power switching stage (7). The second controller detects problems in the power switching stage and in that event the power switch is blocked and a warning sent to the first controller. The controller-monitor includes a device which blocks the power stage in response to pulse-block signals. The power switch may use FETs.
Patent DE-3782489-D1 (DE)
Inventor: COLLE ROBERTO
IPC: C07C69/708
Filed: 1987-12-21
Granted: 1992-12-10
Abstract: There are described compounds having general formula: <CHEM>  wherein: R<1> is selected from the group comprising F, Cl, Br, CF3, a phenyl, a C1-C2 alkoxy, a C1-C2 haloalkoxy, an alkylthio, a haloalkylthio radical, in which the halogen is F, Cl, Br;  R<2> is selected from the group comprising H, F, Cl, Br, CF3;  R<3> is H, a C1-C4 alkyl or a C3-C6 cycloalkyl radical;  Y is selected from the group comprising H, CH3, OH, CN, F;  n is 2, 3, 4 or 1 as well, when Y is OH;  m is 0 or 1;  X is O or S; Rf is selected from the group consisting of C1-C5 polyfluoroalkyl, C2-C4 polyfluoroalkenyl, polyfluoroalkoxyalkyl and polyfluoroalkoxyalkenyl radicals, each of them containing at least two fluorine atoms and, optionally, other halogen atoms selected from Cl and Br; Z is CH or N. m
Patent DE-3784585-D1 (DE)
Inventor: NAKAMURA MICHIEI
IPC: C09D17/00
Filed: 1987-08-07
Granted: 1993-04-15
Abstract: A pigment composition contains a pigment and a dispersant. The dispersant is a polyester compound which contains, per molecule, a residuum of at least two benzene rings coupled together, an aromatic ring having at least 8 carbon atoms or a heterocyclic ring having at least 8 carbon atoms, and at least one ester bond as a principal bond.
Patent DE-3856437-D1 (DE)
Inventor: RATHMAN TERRY LEE
IPC: C07F3/06
Filed: 1988-03-29
Granted: 2000-11-30
Abstract: A method for producing methyllithium solutions by reacting a methylhalide with a mixture of lithium metal and an aromatic hydrocarbon containing tetrahydrofuran.
Patent DE-3860729-D1 (DE)
Inventor: BRENNECKE HERMANN DIPL ING
IPC: A62C3/00
Filed: 1988-03-15
Granted: 1990-11-08
Abstract: 1. Fire extinguisher system for deep fryers, particularly in catering establishments, wherein a steam extraction cooker hood (3) is arranged above the fryer (2) and is connected with a fire monitoring element (6a) which in the event of fire initiates the supply of extinguishant via extinguisher nozzles (10) arranged optionally in the cooker hood (3), characterized in that the fire monitoring element (6a) is a per se known light-sensitive element, in particular an infra-red detector (6a) and is arranged externally of the cooker hood (3) and is connected therewith by way of a light conductor (5) ; and that the end of this light conductor (5) at the steam extraction side opens into a pipe (4) the wall of which is impermeable to light and the length of which is a multiple of its internal diameter ; and that this pipe (4) is directed downwardly from the cooker hood (3) towards the oil surface of the fryer (2).
Patent DE-3865043-D1 (DE)
Inventor: FREI PETER
IPC: E04G11/02
Filed: 1988-02-27
Granted: 1991-10-31
Abstract: The shuttering for a concrete structure is formed from panels (10) supported in a rectangular frame. The sides of the frame are formed by tubes (14) of rectangular cross-section which fit telescopically one into another, thus enabling the length and breadth to be varied so suit the requirements of a particular structure. The rectangular frame is held to the required dimension by means of diagonal bracing cables (34). Holes are provided in the telescopic members for fixing screws.
Patent DE-3866051-D1 (DE)
Inventor: RHODOVI HANS-GEORG
IPC: C05F7/00
Filed: 1988-04-12
Granted: 1991-12-12
Abstract: Sewage sludge is rotted by (a) spreading a loose charge of organic matter (at least partly straw, wood waste, used paper or refuse) on a flat surface, (b) adding raw slurry brought to a solids content of at least 25 wt.%, (c) immediately mixing the components, and (d) leaving the mixt. to aerobic decay until the material rots. The organic material, is at least partly straw, pref. in the form of mats, as formed in harvest threshers, partic. wheat straw or barley straw, or may be a mixt. of straw with wood waste or shredded waste paper, opt. with other organic matter as C source for the rotting microbes. The raw slurry may contain heavy metals at a level below the max. legal limit, has 25-35 wt.% solid, and may be pre-treated with mineral salts and/or polyelectrolytes. Mixing is in known appts., at a ratio of organic matter: partially dried slurry of 0.1-0.5:1 cubic.m. The mixt is spread on a surface of at least 4 square.m/cubic m of slurry, in a way such that the layers taper upwards.
Patent DE-3866506-D1 (DE)
Inventor: AKIBA JYUJI
IPC: G01M3/04
Filed: 1988-10-12
Granted: 1992-01-09
Abstract: A liquid leakage sensor is provided having an electrically insulating sensor base (10) and first and second elongate electrical conductors (11,12) embedded in the insulating base, portions of the conductors being exposed to the environment through a plurality of openings (14) in the insulating base, the sensor being capable of detecting a conductive connection between exposed portions of the first and second conductors when an electrically conductive liquid penetrates one or more of the openings, wherein one end (11a,12a) of each of the first and second conductors extends to one edge of the insulating base and is covered by electrical insulation (18), and the other end (11b,12b) of each of the first and second conductors extends outwardly from the opposite edge of the insulating base, the outward extensions (11b,12b) of these first and second conductors being connected to electrical wires (21,22) leading to alarm means, both the outward extensions (11b,12b) and electrical wires (21,22) being covered by and encased within electrical insulation (16).
Patent DE-3866729-D1 (DE)
Inventor: WINGEN RAINER DR DIPL CHEM
IPC: C07D455/04
Filed: 1988-02-25
Granted: 1992-01-23
Abstract: 4-Chlorooxazole derivs. of formula (I) are new. A = a bond or bond when A is CH=CH; R1 = phenyl opt. mono- or polysubstd. by 1-4C alkoxy or di(1-4C alkyl)amino; R2 = phenyl, phenyloxazolyl, pyridyl, julolidin-9-yl, N-(1-4C alkyl)-3-carbazolyl, coumarin-6-yl or stilben-4-yl, all opt. mono- or polysubstd. by 1-4C alkyl, 1-4C alkoxy, 1-4C haloalkoxy, OH, halogen, di(1-4C alkyl)amino or dibenzylamino. Specifically, A = a bond; B = CH=CH; R1 = methoxyphenyl; R2 = 4-ethyoxyphenyl, 4-dimethylaminophenyl, 4-diethylaminophenyl, 2-chloro-4-dimethylaminophenyl, 2-hydroxy-4-diethylaminophenyl, or N-ethyl-3-carboazolyl.
Patent DE-3871905-D1 (DE)
Inventor: CALLUT FRANCOIS J
IPC: B04C5/26
Filed: 1988-11-11
Granted: 1992-07-16
Abstract: Particulate material such as coal of a size inferior to 1 mm is recovered by being entrained in a liquid medium and being fed through an apparatus comprising a plurality of cyclone separators (104, 112, 118, 125) connected in series, the cyclone angle of the separators decreasing in the direction of flow. The cyclone angle  alpha  2 of a cyclone separator in the series is within +/- 5% of the angle calculated according to the formula <MATH> where  alpha  2 is the cyclone angle of a cyclone separator following a separator with angle  alpha  1 and O1 and O2 represent the geometric mean particle size of the cut of successive separators with these angles.
Patent DE-3873518-D1 (DE)
Inventor: RONCHI GIAN MARIA
IPC: C12M1/28
Filed: 1988-12-09
Granted: 1992-09-10
Abstract: The improved device comprises a container (1) which defines a tank (2) and a chamber (3) suitable for housing a support (17) for culture media (18), an externally actuated piston (12) acts as a valve to hydraulically connect the chamber (3) with the tank (2) or to seal them off from each other. The tank (2) contains a dilution and or enrichment or selective enrichment liquid introduced during the manufacture of the container (1).
Patent DE-3877852-D1 (DE)
Inventor: EMHEISER WILLIAM C
IPC: B01D19/00
Filed: 1988-08-03
Granted: 1993-03-11
Abstract: This invention is directed to a membrane-type filter device. Vents (12) located opposite the hydrophilic membrane (4) remove entrapped gases in the inlet chamber (2) of the housing (1). There are preferably two such vents (12) on either end of the inlet chamber (2), of which the corners are preferably non-rectangluar, and which remove entrapped gases from the fluid without regard to filter device or orientation.
Patent DE-3877889-D1 (DE)
Inventor: ROGGERO ARNALDO
IPC: H01M10/05
Filed: 1988-10-06
Granted: 1993-03-11
Abstract: A solid polymeric electrolyte is constituted by a solid solution of an ionic compound in a cross-linked polyether, wherein this latter is the copolymerization product of a vinyl-ether of formula:  R-(O-CH2-CH2)n-O-CH=CH2      (I)  wherein: R is the methyl or ethyl radical; and  n is an integer comprised within the range of from 1 to 16;  with a di-vinyl-ether of formula:  CH2=CH-(O-CH2-CH2)m-O-CH=CH2      (II)  wherein: m is an integer comprised within the range of from 1 to 16; with a molar ratio of the di-vinyl-ether (II) to the vinyl-ether (I) comprised within the range of from 1/100 to 10/100; with said polyether having a weight average molecular weight of about 10,000, and a glass transition temperature (Tg) comprised within the range of from -60 DEG C to -80 DEG C. Such a a solid polymeric electrolyte is used in the manufacturing of high-energy-density electrochemical generators.