baber/WOPTO huggingface dataset:
Patent DE-3272092-D1 (DE)
Title: Manufacture of particle board and a novel suitable bonding agent
Inventor: HOETJER JAN JACOB
IPC: C08L61/30
Filed: 1982-04-07
Granted: 1986-08-28
Abstract: The invention concerns the manufacture of particle board having a very low formaldehyde emission, and a novel bonding agent. The essential feature is the use of a melamine-modified urea-formaldehyde adhesive with a ratio of formaldehyde to aminogroups of between 0.500 : 1 and 0.575 : 1, which contains melamine in an amount of between 1.0 and 10% by weight relative to resin solids. The boards which are so obtained have a very low formaldehyde emission (FESYP perforator value below 0.01%) and yet satisfactory physical properties.
Patent DE-3276175-D1 (DE)
Title: Process for preparing a copolymerization catalyst and preparation of ethylene polymers with this catalyst
Inventor: VAN DE LEEMPUT LAMBERTUS J M A
IPC: C08F10/00
Filed: 1982-08-05
Granted: 1987-06-04
Abstract: Process for preparing and treating a chromium-containing catalyst so that when the catalyst is activated the risk of explosion is substantially reduced. The catalyst comprises a complex of chromium and optionally other transition metal complexes reacted with one or more organometallic compounds of a metal of group II or III of the periodic table, which metal contains hydrocarbyl groups of 1-20 carbon atoms. The reaction product is applied to an inert inorganic support to form the catalyst component which is deactivated by treatment with oxygen or an alcohol to modify or replace residual hydrocarbyl groups. The catalyst component may be activated to form the catalyst by heating in the range 200-1200<sup>0</sup>C. The catalyst is used to catalyze a polimerization of alpha-olefins.
Patent DE-3361549-D1 (DE)
Title: Immunoassay
Inventor: BAKER TERENCE SEWARD
IPC: G01N33/531
Filed: 1983-05-11
Granted: 1986-01-30
Abstract: There is described an enzyme immunoassay for measuring the concentration of an analyte in a sample wherein the substrate for the enzyme forms at least a part of the sample. In a particular embodiment the sample comprises or consists of a milk sample and the enzyme is an enzyme capable of clotting milk. An example given of such an enzyme is chymosin. The assay described may be used to measure the concentration of progestagens or oestrogens in milk using the techniques of heterogeneous or homogeneous enzyme immunoassay. The results of such an assay give an indication of the fertility of a milk producing domestic animal (e.g. a cow) and may be used to diagnose pregnancy of such an animal. Particular compounds for use in the assay are described, as is a kit of reagents for use in the assay.
Patent DE-3363471-D1 (DE)
Title: Multi purpose chip
Inventor: FRANKLIN DENNIS M
IPC: H01L23/52
Filed: 1983-02-16
Granted: 1986-06-19
Abstract: A variable circuit configuration in which each of a plurality of series connected devices is connected to a lead frame having a parallel circuit for such connected devices that can control the by-pass or use of all, some or none of the connected devices.
Patent DE-3364751-D1 (DE)
Title: Gas-fired device for generating heat for a dwelling
Inventor: VRIJ WILLEM JAN
IPC: F24D5/02
Filed: 1983-10-28
Granted: 1986-08-28
Abstract: A gas-fired device for generating heat for a dwelling, comprising a vessel containing a liquid with an associated burner assembly for heating the liquid, an air-heat exchanger provided on a portion of the circumferential wall of the vessel, means for passing air through the heat exchanger for heating the air and a connection with means for passing the heated air to the room(s) to be heated, and a discharge for the combustion gases extending to the outside. On the remaining portion of the circumferential wall of said vessel a combustion gases-heat exchanger being mounted, so that heat is supplied to the vessel exclusively from the outside. Preferably a cooking assembly is provided above the vessel, and a condenser is mounted in the discharge channel for the combustion gases for pre-heating the air, a discharge conduit for the combustion gases from the cooking assembly being provided which leads also to said condenser. Combustion air is supplied by air inlet conduits which are connected with a channel leading to the outside of the dwelling for the supply of atmospheric air. The vessel including the burner assembly is mounted in a rectangular housing which fits in a kitchen cupboard of standard size. Preferably a heat exchanger coil or the like is immersed in the liquid inside the vessel.
Patent DE-3369263-D1 (DE)
Title: Method and apparatus for metal arc welding
Inventor: BODEWIG PETER W
IPC: B23K9/173
Filed: 1983-04-29
Granted: 1987-02-26
Abstract: The invention relates to a process and an apparatus for metal arc welding with a consumable electrode. A pulsating current is supplied to the electrode from a constant current source. During the interpulse periods between pulses there flows a minimum current which is at least sufficient to maintain the arc. The switch from pulse current to interpulse current occurs as a function of the arc voltage, with switching to pulse current occurring if a minimum voltage is detected and to interpulse current occurring if a maximum voltage is detected. Compared with conventional metal arc welding with a consumable electrode, this method offers the advantage of a better welding quality.
Patent DE-3462407-D1 (DE)
Title: Polymerizable materials and use of arylamines as curing accelerators therefor
Inventor: MEIER HELMUT-MARTIN DR
IPC: C08K5/21
Filed: 1984-12-03
Granted: 1987-04-02
Abstract: The invention relates to the use of novel N,N-disubstituted arylamines containing polymerizable groups as hardening accelerators for polymerizable compositions based on unsaturated polyester resins, in particular for trowelling and water compositions.
Patent DE-3462592-D1 (DE)
Title: Docking system for space modules
Inventor: TURCI EDMONDO
IPC: B64G1/64
Filed: 1984-04-09
Granted: 1987-04-16
Abstract: A docking system for space modules includes a docking device having respective male and female coupling members (6, 7) carried by the two space modules (1, 2). The coupling members (6, 7) are arranged to allow, after they have been brought into their coupled condition, relative rotation of the two modules (1, 2) about the axis (X-X) of the docking device. The system further includes a plurality of connecting devices (8) arranged to lock the two space modules (1, 2) in a precise relative position after the male and female members (6, 7) of the docking device have been brought into their coupled condition. Each of the said connecting devices (8) comprises a coupling seat (9) located in one ofthetwo modules (1,2) and a coupling shank (11) carried by the other module and axially movable between a withdrawn inoperative position and an extended coupling position. This coupling shank (11) has a head (12) which is expandible within the said coupling seat (9) to effect the connection between the two modules (1, 2).The mutual approach of the two coupling members (6,7) into a centered condition is achieved with the aid of an infra-red indicator system.
Patent DE-3468925-D1 (DE)
Title: Valve opened by vacuum
Inventor: PAQUET JEAN-MARC
IPC: F16K31/365
Filed: 1984-12-20
Granted: 1988-02-25
Abstract: A valve which opens on reduced pressure comprises: a hollow body (1) divided into first and second portions (2 and 3) by an internal partition (4), with the first portion being provided with a first opening (5) for connection to an enclosure to be evacuated and with a second opening (6) for connection to the aspiration side of a vacuum pump; a moving valve plate (7) disposed inside the first portion; a spring (8) urging the valve plate to close the first opening; a rod (10) having one end connected to the valve plate and passing through the internal partition; and a piston (b 11) which is connected to the other end of the rod, and which divides the second portion into a first chamber (13) and a second chamber (14) which are sealed from each other, the first chamber being on the rod side of the piston and being in communication with the outside (19), and the second chamber including an orifice (22) for communication with the outside, which orifice is fitted with closure means (23), the second chamber further including means (20) putting the second chamber in communication with the first portion of the body.
Patent DE-3471952-D1 (DE)
Title: Metal-working lubricant
Inventor: NAGAE YOSHIO
IPC: C10M161/00
Filed: 1984-09-13
Granted: 1988-07-14
Abstract: 1. Lubrifiant for cold working of metals with a content of fatty oils and/or mineral oils and calcium carbonate dispersed therein, characterized in that it contains 5 to 50 weight % calcium carbonate coated with silane-adhesion promoter having a medium grain diameter of up to 3 mu m.
Patent DE-3474512-D1 (DE)
Title: Device for controlling a pump
Inventor: PIERONNE ALAIN
IPC: A61M1/10
Filed: 1984-08-06
Granted: 1988-11-17
Abstract: PCT No. PCT/FR84/00185 Sec. 371 Date Apr. 4, 1985 Sec. 102(e) Date Apr. 4, 1985 PCT Filed Aug. 6, 1984 PCT Pub. No. WO85/00754 PCT Pub. Date Feb. 28, 1985.The invention provides a pump regulation device. It is characterized in that the device (21) comprises: means for recording the real pressure (24) and a reference pressure, means, on the one hand for comparing the real pressure (24) in the organ and the reference pressure and, on the other hand, for emitting a signal proportional to the error, ports controlling the threshold of this error signal, an alarm controlled by the signal passing through at least one of said ports.
Patent DE-3476504-D1 (DE)
Title: Heat tracing tape and power control system
Inventor: COOPER PETER JAMES
IPC: H05B1/02
Filed: 1984-04-10
Granted: 1989-03-02
Abstract: A heat tracing tape which can be cut to required lengths has a heating element comprising at least two lengths of woven or braided resistance wire each in the form of a flat strip. The strips are encased in extruded silicone rubber whereby they are spaced from one another. The strips are electrically connected at one end by a connector and the tape is provided with a power supply termination either at its other end, or at a T-branch connection, for connecting the tape to the power control system. The power control system is adjustable to set an estimated value of power required to maintain a predetermined process temperature. The system automatically adjusts the power supplied to the tape to the estimated value by means of a feedback control system. A process temperature sensor also regulates the power supplied to the tape in accordance with a sensed temperature.
Patent DE-3564254-D1 (DE)
Title: Process for the preparation of methane in the presence of a thioresistant catalyst, and catalyst to be used in such a process
Inventor: PRZYDROZNY MICHEL
IPC: C07C1/04
Filed: 1985-12-24
Granted: 1988-09-15
Abstract: 1. Method of production of methane or of a methane-containing gas mixture from an initial mixture comprising in particular carbon monoxide, hydrogen and sulphur compounds, which consists in contacting the said initial mixture with a thioresistant catalyst, at a temperature lying between about 250 degrees C and 650 degrees C and at a pressure lying between 5 and 140 bars, characterized in that use is made, as a thioresistant catalyst, of a catalyst comprising a metal selected from the group comprising molybdenum, vanadium and tungsten and an activity promoter consisting of cobalt and/or nickel, which catalyst being deposited through impregnation onto a zirconium oxide carrier, the atomic ratio of the molybdenum, vanadium or tungsten metal to zirconium lying between 1/50 and 1/4.
Patent DE-3567150-D1 (DE)
Title: Blank for producing formed pieces in dental technics and its utilization
Inventor: MORMANN WERNER H DR MED
IPC: A61C5/77
Filed: 1985-02-27
Granted: 1989-02-09
Abstract: A blank adapted for use in custom fabrication of an implant for dental restoration includes first and second joined parts. The first part is made of the raw material of the ultimate implant, whereas the second part can be made of a different material. The second part is shaped to facilitate a positive support of the blank in a milling machine, and is preferably equipped with a code-bearing surface which permits information about the physical properties of the blank to be sensed by the machine. In a preferred realization, the first part is made from ceramic silica and the second part from aluminum, and the two are bonded by an acrylic glue.
Patent DE-3568174-D1 (DE)
Title: Prepolymers prepared from hydroxy-aromatic mono-aldehydes and methylated pyridines or pyrazines, and composites prepared therefrom
Inventor: WESARINGEN LOREN L
IPC: C08J5/24
Filed: 1985-03-08
Granted: 1989-03-16
Abstract: This invention is directed to cured fibrous composites prepared from the resinous reaction products of hydroxy aromatic mono-aldehydes and methylated pyridines or methylated pyrazines. This invention is also directed to thermosettable prepolymers prepared from hydroxy mono-aldehydes and methylated pyrazines or pyridines. 
<??>The total number of methyl groups in the pyridine or pyrazine ranges from 2 to 4. The composites are prepared from conventional fibers such as graphite fibers, glass fibers, aramid fibers, or asbestos fibers.
Patent DE-3574503-D1 (DE)
Inventor: MENICK EDWARD
IPC: H03K5/13
Filed: 1985-06-24
Granted: 1990-01-04
Abstract: In accordance with the present invention, there is provided a Loran C cycle slip reduction technique that consists of sensing the signal to noise ratio and narrowing the phase locked loop bandwidth when a predetermined signal-to-noise threshold is exceeded.
Patent DE-3577838-D1 (DE)
Inventor: ALLAN G GRAHAM
IPC: C05G3/60
Filed: 1985-11-13
Granted: 1990-06-28
Abstract: Liquid compositions provide a source of a herbicide or other biologically active substance in combination with a particular nitrogenous chemical, preferably melamine. After application, the herbicide is characterized by enhanced efficacy as compared to the efficacy observed when applied alone.
Patent DE-3579735-D1 (DE)
Inventor: WIKDAHL NILS ANDERS LENNART
IPC: B04C5/28
Filed: 1985-04-15
Granted: 1990-10-25
Abstract: The invention relates to a method of controlling an apex flow in a hydrocyclone unit (9), and a control system for carrying out the method. The hydrocyclone unit (9) comprises a plurality of hydrocyclone separators (10) in parallel, and further comprises an inject chamber (21, 22, 23), base chamber and apex-fraction chamber common to all separators, an inlet (1) to the inject chamber (21) and an outlet (2, 3) for the base chamber (22) and apex chamber (23) respectively. The apex flow is controlled by automatically and substantially continuously detecting at a location in or adjacent the apex outlet (1) a flow parameter of the apex fraction, and comparing this sensed flow parameter value with a set-point value, and changing the setting of a valve (15) incorporated in a conduit (14) connected to the apex outlet (2) when the sensed value deviates from the set-point value, so that the flow parameter value of the apex fraction moves towards the set-point value.
Patent DE-3586384-D1 (DE)
Inventor: KANI TETSUO
IPC: H04N5/95
Filed: 1985-09-20
Granted: 1992-08-27
Abstract: In a time base corrector incorporated a video tape recorder, if a time during which a vertical synchronizing signal is written in a memory unit (2) exceeds one horizontal period segment, the video signal stored at the first address of the memory unit (2) is dropped out during data reading operation. To overcome the above problem a write address designation signal (ADW) is once latched in response to a vertical synchronizing signal (PBV) a predetermined number is subtracted from the latched address number; the subtracted a address number is loaded in a counter (16) in response to a reference vertical synchronizing signal (REFV) and is incremented in response to a reference horizontal synchronizing signal (REFH) in order to shift the read start address, thus preventing video signals stored in the memory unit (2) from being dropped off.
Patent DE-3587383-D1 (DE)
Inventor: MOLLER OLE H
IPC: G06F7/02
Filed: 1985-11-28
Granted: 1993-07-08
Abstract: A bounds checker is provided consisting of a pair of comparators that each compare a 16-bit number with a lower and an upper limit stored in registers. The device is preferably constructed as a single integrated circuit chip employing emitter coupled logic (ECL) circuitry and can be made externally compatible with either transistor transistor logic (TTL) circuitry or ECL circuitry. The device can be cascaded to operate on extended- precision numbers and has a pin which can be used to select comparison of numbers either as signed two's complement numbers or as unsigned numbers. No added gate delay is imposed by the device's ability to operate either type of number.
Patent DE-3663689-D1 (DE)
Title: Improved electric arc vapor deposition method
Inventor: BERGMAN CLARK
IPC: C23C14/28
Filed: 1986-06-26
Granted: 1989-07-06
Abstract: An improved method for maintaining cathode spots in an electric arc vapor deposition coating process on the desired cathode evaporation surface is disclosed. A primary anode is arranged, configured and biased within a vacuum deposition coating chamber relative to a cathodic source so as to maintain an electric arc therebetween. A relative biasing network maintains a voltage difference during deposition between the primary anode and other conductive surfaces within the chamber, or the chamber wall itself, such that electrons leaving the cathode are preferentially drawn toward the primary anode rather than to other conductive surfaces. The anode orientation within the chamber causes those electrons drawn toward it to tend to maintain the cathode spots on the desired cathode evaporation surface for maintaining arc stability at low arc current levels.
Patent DE-3664196-D1 (DE)
Title: Back-geared motor for simultaneously driving two components
Inventor: BIANCHI FRANCOIS
IPC: H02K7/10
Filed: 1986-10-01
Granted: 1989-08-10
Abstract: The motor-speed reducer comprises an elongated tubular case (1) in which is disposed a motor (2) provided with two coaxial output shafts extending in opposite directions (4 and 6). Mounted on the end of each output shaft is an end portion (24) of a housing (22) of a speed reducer (18, 20). The end portion of the shaft has a worm (8, 10) which is engaged with an input worm wheel (32) of the speed reducer. The two speed reducers are preferably similar. A cassette (42) including an end-of-travel device and rotation detectors is mounted in the case (1) around the output shaft (6).
Patent DE-3666090-D1 (DE)
Title: Coupling mechanism for transmission between a driving and a driven shaft
Inventor: MARTINEZ CARLOS CASTELOS
IPC: F16H3/50
Filed: 1986-05-30
Granted: 1989-11-09
Abstract: Coupling mechanism for transmission between a drive shaft and a driven shaft including support frames, first and second lined independent axle shafts rotatably mounted on the support frame, a box, in the frame and planet and satellite pinion assembly including a first planet pinion connected to the first axle and a second planet pinion connected to the second axle. The first and second satellite pinions are mounted in the box, independent of the support frame. Two coil clutch members are mounted on the box, coaxial with the axle shaft. Each of the coil clutch members being placed on either side of the box and including a plurality of coils and being traversed by one of the axle shafts that are independently mounted. Two driving clutch members, formed of ferromagnetic material, are each integrally mounted to one of the first and second axle shafts in a position parallel to and near to one of said coil clutch members, respectively. A commutator device is mounted externally on the box for supplying power to the coils.
Patent DE-3669098-D1 (DE)
Inventor: KAREY HANS
IPC: H05B3/46
Filed: 1986-05-09
Granted: 1990-04-05
Abstract: A cordless portable hand held hair dressing appliance has a housing provided with a pistol-grip handle and containing a battery operated electric fan arranged to draw air into the housing through an air inlet for flow through a heat structure to be heated prior to discharge from a housing air outlet. The heater structure includes air elongated heat accumulator member of high specific heat penetrated in the longitudinal direction by a plurality of air ducts each having an intake communicating with the housing inlet and an outlet communicating with a mixing chamber connected to the housing outlet. The heat accumulator member is formed of a ceramic, e.g., Al2O3 and MgO, and is adapted to be heated to store heat therein by an electrical heating conductor structure formed by a layer of electrical resistance material on the wall of each duct. The fan battery is rechargeable and the handle is provided with a detachable electric plug contacts for connecting the heating conductor structure to an external power source for preheating prior to use and for connecting the rechargeable battery to a batter charger.
Patent DE-3676010-D1 (DE)
Inventor: VELUZ SERGE
IPC: A24D3/04
Filed: 1986-08-25
Granted: 1991-01-17
Abstract: In order to obtain, during the smoking of a cigarette, each time the smoker draws, an amount of condensate which is more constant or is even less than heretofore, there is provided a cigarette filter unit having at least one membrane in the form of a screen positioned across the smoke-gas flow paths, the unit acting, while the cigarette is being smoked, as an internal bypass element. To this end, the spatial distribution of the openings in the membrane, and the cross sectional areas thereof, are accurately determined as to the size and shape. The thickness of the membrane is between 10 and 150  mu m, the number of openings therein is between 500 and 25,000, and the cross sectional area of the openings is between 80 and 3,000  mu m2. Furthermore, an additional element providing at least one flow aperture whose cross section is at least 10 times larger than that of the largest opening in the membrane and/or the ventilating openings, is provided after the membrane, as seen in the direction of flow, extending between the interior and the exterior of the filter unit.
Patent DE-3679926-D1 (DE)
Inventor: SAXINGER CARL W
IPC: G01N33/569
Filed: 1986-02-12
Granted: 1991-08-01
Abstract: This invention discloses a method for detecting antibodies to human T-cell leukemia virus Type III (HTLV-III), the virus associated with Acquired Immune Deficiency Syndrome (AIDS). The method involves use of a peroxidase labeled immunoglobulin which specifically binds to a compatible anti-human immunoglobulin previously bound to NTLV-III antibodies in test sera.
Patent DE-3681222-D1 (DE)
Inventor: BOGENSCHUETZ AUGUST F
IPC: H05K1/03
Filed: 1986-06-25
Granted: 1991-10-10
Abstract: Chemical metallisation of low electrical conductivity substrates of inorganic material is carried out by (i) treating the substrate surface with an activating material which allows chemical bonding with the activated surface; (ii) applying an inorganic adhesion promoter which allows chemical bonding with the activated surfaces and a subsequently applied metal layer; and ( iii) heat treating the substrate during and/or after at least one of the process steps to enhance formation of chemical bonds and, if required diffusion and/or transport processes between the surface and at least the adhesion promoter.
Patent DE-3681865-D1 (DE)
Inventor: DWEK RAYMOND ALLEN
IPC: C07H5/00
Filed: 1986-09-05
Granted: 1991-11-14
Abstract: A preparative scale method for the isolation of unreduced oligosaccharides of glycoproteins and glycohormones having a N-linked oligosaccharide structure is disclosed. The method employs hydrazin­olysis of the glycoprotein or glycohormone under reaction conditions to cause cleavage at the N-linked sites, producing a mixture having as a major component a de-N-acetylated hydrazone derivative of the oligo­saccharides, followed by N-acylation of the hydrazone derivative, acid-catalysis of the hydrazone derivative to produce unreduced oligosaccharides, and subjecting the resulting unreduced oligosaccharides to cellulose column chromatography to remove contaminants and to recover the unreduced oligosaccharides.