baber/WOPTO huggingface dataset:
Patent DE-3379744-D1 (DE)
Title: Plate heat exchanger
Inventor: SKOOG MALTE
IPC: F28F3/08
Filed: 1983-02-26
Granted: 1989-06-01
Abstract: A heat exchanger comprising a plurality of plates (5, 6) arranged adjacent to each other, whereby passages (9, 10) for two mutually heat exchanging fluids are formed between the plates. The plates comprises corrugations or ridges (7, 8), whereby the corrugations form an angle (a) with the longitudinal rim of the plate. In the first type of plates the corrugations form a first angle (α<sub>1</sub>) with said rim and in the second type of plates the corrugations form a second angle (a<sub>2</sub>) with the rim. The plates are combined in order to form two types of passages having different thermal length. The firsttype of passage (9) is obtained by combining a first plate and a second plate and the second type (10) of passage is formed by combining a first plate and a second plate, wherein one of the plates is turned 180° in its own plane. Thus, two types of passages having different thermal lengths are obtained. The two types of passages can be combined for each heat exchanging fluid in order to provide the desired thermal length for that fluid.
Patent DE-3382370-D1 (DE)
Inventor: DALLAVIA JR
IPC: C08G77/08
Filed: 1983-08-27
Granted: 1991-09-12
Abstract: A silanol-functional diorganopolysiloxane composition free of latent condensation catalyst having up to about 20% weight SiOH groups and a viscosity of from 50 to 100,000 mPa.s at 25 DEG C prepared by a base-catalyzed equilibration of cyclic polysiloxane monomers and water, said base being neutralized by the addition of tris(2-chloroethyl)-phosphite. The compositon is useful as release coating.
Patent DE-3461858-D1 (DE)
Title: Method for equipping a pipe with a lateral connecting piece
Inventor: LUTH ARMIN
IPC: B23P15/00
Filed: 1984-02-15
Granted: 1987-02-05
Abstract: 1. Procedure to provide a metal tube (1) having at least one rib-shaped projection (2) with a lateral tubulation, characterized in that the rib (2) of the tube (1) is radially bored through to the tube interior and that the rib sections (2) adjoining the bore (3) are removed but for that part forming the wall (4) of the branch tubulation (5).
Patent DE-3466988-D1 (DE)
Title: Pyrimidine derivatives, their preparation and pharmaceutical compositions
Inventor: KOMPIS IVAN DR
IPC: C07D451/02
Filed: 1984-04-09
Granted: 1987-12-03
Abstract: The pyrimidine derivatives of formula I    <IMAGE>  I  wherein R1 is naphthyl, substituted naphthyl or substituted phenyl; R2 is hydrogen or lower alkoxy; and A is an optionally present ethylene or 1,3-propylene, and wherein the diaminopyridine group has the exo-configuration when A is present, are described. These compounds are useful as antibacterial agents, antimalarial agents and antitumor agents, and can be used in combination with sulfonamides in the control of bacterial infections.
Patent DE-3467065-D1 (DE)
Title: Boiling water reactor
Inventor: OKAMURA TOMOYOSHI
IPC: G21C15/24
Filed: 1984-06-05
Granted: 1987-12-03
Abstract: This invention relates to a boiling water reactor equipped with a plurality of internal recirculation pumps (8) arranged in a separated relationship in the circumferential direction between the outer peripheral surface of a shroud surrounding a reactor core and the inner peripheral surface of a reactor pressure vessel (1). Baffles 29a, 29b; 30a, 30b; 33a to 33d; 34a to 34d) for guiding the flows of reactor coolant are arranged on the outer peripheral surfaces of the inlets of the recirculation pumps, and prevent the generation of vortices in the proximity of these pump nets. The present invention can thus prevent the occurrence of noise, vibration, etc due to the generation of vortices, and can improve the reliability of the pumps.
Patent DE-3471878-D1 (DE)
Title: Vascular graft prosthesis
Inventor: SEILER LOUIS
IPC: A61F2/06
Filed: 1984-07-30
Granted: 1988-07-14
Abstract: A porous tube suitable for use as a vascular graft prosthesis is disclosed. It is reinforced by external ribs, integral with the tube wall. These ribs are generally transverse to the tube axis and less porous than the wall. Suitable tubing can be made from polymers exhibiting a significant degree of crystallinity, preferably polytetrafluoroethylene. Methods for making these ribbed, porous tubes are also disclosed.
Patent DE-3476865-D1 (DE)
Title: Biological sludge hygienisation process
Inventor: NATTA GIUSEPPE
IPC: C02F11/18
Filed: 1984-11-14
Granted: 1989-04-06
Abstract: A process for the stabilised hygienisation of biological sludge is disclosed which is characterised by a salting treatment of the biological sludge through the addition of at least one salt of a cation selected from those of alkaline and alkaline-earth metals and ammonium. Salts of inorganic acids such as sulphates, phosphates, nitrates, chlorides, or organic acids such as acetates, especially ammonium acetates, even reclaimed ones, are added preferably in amounts ranging from 3% to 90% by weight, in the form of crystalline salts or saturated acqueous solutions. Hygienised and stabilised sludges are obtained which are suitable for pumping and may be disposed of in conformity with strict enforced regulations. By an appropriate selection and dosage of the salts, the resulting hygienised slurries may be beneficiated with fertilising N, P, K, Ca elements which make them suitable for use in agriculture and economically valuable. The hygienisation effect is retained even after drying, thus avoiding the risk of re-contamination.
Patent DE-3478933-D1 (DE)
Title: Process for cross-linking ethylene polymers containing acid anhydride groups, the cross-linkable compositions and the use of these compositions as a spread
Inventor: NICCO ADRIEN
IPC: C08L23/08
Filed: 1984-10-24
Granted: 1989-08-17
Abstract: A crosslinking process wherein at a temperature of about 10 DEG  to 160 DEG  C., under a pressure of about 1 to 300 bars and for at least about 0.5 hour, a polymer, containing from about 42 to 99% by weight of units derived from ethylene and, where appropriate, also from an alpha -olefin, from about 1 to 8% by weight of units derived from maleic anhydride and from 0 to about 50% by weight of units derived from at least one additional monomer selected from an ester of an unsaturated carboxylic acid with an alcohol containing from 1 to 12 carbon atoms, is reacted with at least one polyepoxide compound, preferably present in an amount of from about 1 to 10 parts by weight, based on 100 parts by weight of the polymer, in the presence of at least one catalyst suitable for reacting the anhydride functions with the epoxide functions. The catalyst is preferably present in an amount from about 0.02 to 2 parts by weight, based on 100 parts by weight of the polymer. The crosslinkable compositions may be used to coat a substrate such as an electric cable.
Patent DE-3564115-D1 (DE)
Title: Method for preparation of n-phosphonomethylglycine
Inventor: DINIZO STEPHEN EDWARD
IPC: C07F9/38
Filed: 1985-05-16
Granted: 1988-09-08
Abstract: An improved method of preparing N-phosphonomethylglycine in yields over 80 percent comprising: (a) hydrolyzing a phosphonate of the formula <CHEM> wherein in R, R<1> and R<2> are C1-C4 alkyl at a temperature between about 55 DEG C to reflux temperature water in an amount sufficient to provide a mole ratio of water to phosphonate within a range of abut 10:1 to about 60:1 and HCl in an amount sufficient to provide a mole ratio of HCl to phosphonate within a range of about 2:1 to about 4:1 or higher to yield an acidic aqueous solution of N-phosphonomethylglycine; (b) removing volatile phosphonate from the acidic aqueous solution of N-phosphonomethylglycine either during or after the hydrolyzing step; (c) precipitating N-phosphonomethylglycine from the acidic solution of N-phosphonomethylglycine by: (1) cooling said solution to below about 80 DEG C; (2) raising the pH of the said solution to within a range of about 1.0 to about 1:8; (3) seeding the solution with 2-4 ppm solid N-phosphonomethylglycine with agitation; and (4) further cooling said solution to about 25 DEG C and continuing agitation and cooled for about 1.5 hours; (d) recovering the precipitated N-phosphonomethylglycine from its mother liquor; and (e) washing the recovered N-phosphonomethylglycine with water to remove impurities and ammonium chloride.
Patent DE-3567695-D1 (DE)
Title: Arrangement in removable oil filters
Inventor: NORD RUNO
IPC: F16N31/00
Filed: 1985-06-14
Granted: 1989-02-23
Abstract: PCT No. PCT/SE85/00252 Sec. 371 Date Feb. 14, 1986 Sec. 102(e) Date Feb. 14, 1986 PCT Filed Jun. 14, 1985 PCT Pub. No. WO86/00373 PCT Pub. Date Jan. 16, 1986.A removable filter container for use with a liquid system, and a method of removing the filter. A first container which houses the filter is removably attached to a main compartment of the liquid system. A second container which is normally empty is attached thereto. A manually operated punching tool connected to the second container punches a hole in the first container to cause liquid to flow from the first container through the punched hole and into the second container, lowering the level of liquid in the first container to prevent overflow of the liquid therein when removing the first container from the liquid system.
Patent DE-3567939-D1 (DE)
Title: Fuel injection system
Inventor: KUPPER HEINZ
IPC: F02B3/06
Filed: 1985-12-11
Granted: 1989-03-02
Abstract: 1. A fuel injection system for injecting fuel into a combustion chamber of an internal combustion engine, especially of a diesel engine operable by the direct fuel injection method, the system comprising an injection pump (1) arranged to be driven by the internal combustion engine and fitted with a cam spindle (2), and comprising at least one injection valve (6) associated with the pump (1) and having an axially arranged nozzle needle (22), in which a choke (7) disposed in the valve's fuel inlet (5) is disconnectable by a high-pressure relief valve (8) also disposed in the fuel inlet (5) and arranged to open in the fuel's direction of flow, and in which a reduced value of the pump's (1) maximum feed pressure prevails, at the start of the injection operation, at the nozzle needle (22) and by means of which the needle (22) is lifted, characterized in that the cam spindle (2) is provided with at least one cam (32), the curve of the cam lobe of which is, due to being divided into at least three sections (11, 12, 13), a stepped one thus rendering it possible to obtain the reduced value of the feed pressure, that the first section (11) of the cam lobe is constructed  to rise tangent-like to a first value obtainable just when the injection starts, that the subsequent second section (12) is constructed so that this first value of the cam lobe either remains constant or rises only slightly across a constant angular range, that the cam lobe's subsequent third section (13) is constructed to rise tangent-like to the maximum value (31), and in that the gradient of the tangent-like lobe in the first and third sections (11, 13) is substantially the same.
Patent DE-3568701-D1 (DE)
Title: Air-in-line detector
Inventor: BALDING ALAN STUART
IPC: A61M5/14
Filed: 1985-09-17
Granted: 1989-04-20
Abstract: An air-in-line detector for detecting the presence of air in a translucent tube (8) containing a liquid comprises a channel (18) for receiving the tube, only three radiation emitter detector pairs (11, 12; 13, 14; 15, 16) two of which (11, 12; 15, 16) are arranged to detect the presence of an opaque liquid with the emitter (11, 15) and detector (12, 16) of each pair being located on opposite sides of the channel (18) so that radiation emitted by the radiation emitters impinges directly on their associated detectors and one (13, 14) of which is arranged to detect the presence of translucent liquids with its emitter (13) and detector (14) being located on opposite sides of the channel (18) but not directly aligned so that radiation emitted by the radiation emitter (13) only impinges on its associated detector (14) after refraction by the tube (8) filled with a translucent liquid, and a programmed computer (1). The computer (1) is coupled to the emitters and detectors and is programmed to monitor their outputs and to give an indication indicating the presence of air in the tube (8) except when the outputs of all three detectors (12, 14, 16) show that none of them are receiving radiation from the associated emitters (11, 13, 15) or that all of them (12, 14, 16) are receiving radiation from their emitters (11, 13, 15) but no longer continue to do so when the emitter (13) of the translucent liquid emitter-detector pair (13, 14) is turned off.
Patent DE-3569311-D1 (DE)
Title: Polarized electromagnet relay
Inventor: NAGAMOTO MITSUKI
IPC: H01H51/22
Filed: 1985-07-23
Granted: 1989-05-11
Abstract: A polarized electromagent relay with reduced width and height is disclosed to have on a base plate an electromagnet block, an armature block with a permanent magnet and at least one contat assembly. The armature block is cooperative with the electromagnet block and is driven in response to the energization thereof to reciprocate between two operating positions so as to actuate the contact assembly for contact switching. The electromagnet block includes a generally E-shaped yoke with a pair of opposed side legs and a center leg defining a core around which the excitation coil is wound. The contact assembly is mounted on the lateral side of the base plate to be received between the adjacent side leg and the base plate so as not to add an extra dimension to the width of the relay. The yoke is configured to have the center leg or core displaced from the plane of the side legs toward the base plate in such a manner as to produce a more space above the core as well as between the core and each of the side legs for receiving the coil. By better utilization of such space the coil can be wound a greater number of turns without substantially projecting above that plane, so as not to add an extra dimension to the height of the relay, thus enabling the relay design of reducing both the width and the height while allowing the use of the coil with a greater number of turns.
Patent DE-3572560-D1 (DE)
Title: Loading device for disc cassettes
Inventor: YAMANOUCHI HIROSCHI C O SONY C
IPC: G11B17/03
Filed: 1985-03-08
Granted: 1989-09-28
Abstract: A loading device for disc cassettes causes an engageable portion (57) of the disc cassette (56) to be engaged by an engagement member (16) of the loading device, when the disc cassette (56) is manually inserted into a cassette holder (1) of the loading device to a first position (P1). As soon as it is pushed a little bit by hand in succession to a second position (P2), the disc cassette (56) is automatically drawn-in to a predetermined third position by way of the engagement member (16) by a motor (39), which is driven on a signal produced by a sensor (35a, 36), and thereafter, lowered from a cassette inserting position to a cassette loading position, so that the disc cassette (56) will always be drawn-in without being inclined.
Patent DE-3586628-D1 (DE)
Title: Immunoassay for detecting cells producing intestinal mucin antigen
IPC: G01N33/53
Filed: 1985-06-21
Granted: 1992-10-15
Abstract: In vitro detection of cancer or other cells which produce mucin antigens, comprises treating a physiological fluid sample so as to detect the presence of SIMA (small intestine mucin antigen) and/or LIMA (large intestine mucin antigen).  The method esp. comprises the detection of binding between the antigen and labelled specific antibodies or their fragments. Also new are test kits for the pocess.
Patent DE-3586659-D1 (DE)
Inventor: CARRICO ROBERT J
IPC: G01N33/543
Filed: 1985-05-18
Granted: 1992-10-22
Abstract: A nucleic acid hybridization assay employing an immobilized or immobilizable polynucleotide probe selected to form DNA<.>RNA or RNA<.>RNA hybrids with the particular polynucleotide sequence to be determined. Resulting hybrids are detected by binding of an antibody reagent, preferably labeled with a detectable chemical group, selective for binding the hybrids in the presence of the single stranded sample and probe nucleic acids. No immobilization or labeling of sample nucleic acids is necessary and hybridization can be performed entirely in solution.
Patent DE-3661683-D1 (DE)
Title: Sitting furniture
Inventor: MACHATE RAINER
IPC: A47C3/025
Filed: 1986-01-25
Granted: 1989-02-16
Abstract: A chair having a seat member rotatably supported about a swivel point in the region of its front edge relative to a seat carrier. The chair also has a back member connected to at least one lever which is pivotally supported on the seat carrier. The lever is connected so that in the case of an inclination of the back member there simultaneously occurs in a predetermined relationship an inclination of the seat member so that the area of the seat back in the region of the user's lumbar vertebra is changed in such a way that the support is at an optimum during each inclined position of the seat back. A control member is hingedly connected at one end to the back member below the point of its engagement with the lever. The control member is hingedly connected to the seat carrier or to the seat at its other end in a first pivot axle spaced from a second pivot axle of the lever on the seat carrier. The lever and the control member are hingedly connected with one another by means of a connecting element, so that a relative movement between the lever and the control member in the coupling point or between the control member and its connecting point on the seat carrier or on the seat can occur.
Patent DE-3673122-D1 (DE)
Inventor: VENEMA TJEERD
IPC: H02M5/293
Filed: 1986-11-07
Granted: 1990-09-06
Abstract: 1. Circuit arrangement comprising an alternating current load (3), which is connectable to an alternating voltage source (1, 2) and has an inductive component, comprising a controlled load-current switching means (8, 23) arranged electrically in series to the alternating-voltage load (3), comprising a control network (75, 18) for controlling the load-current switching means (8, 23) via a pulse frequency located substantially above the alternating-voltage frequency, the pulse frequency or the mark-space ratio of the control pulses being adjustable via a regulating unit (S) in such a way that the alternating-current load (3) is supplied with an alternating current clocked by the pulse frequency, and comprising two antiparallel freewheeling arms, which are located parallel to the alternating-current load (3) and are alternately controllable by means of freewheeling switching means (4, 5; 6, 7) depending upon the alternating-current supply voltage zero-axis crossing, it being the case that, during the positive half-wave of the alternating current supply voltage, the freewheeling arm with the freewheeling switching means (4, 5) blocks and the freewheeling arm with the freewheeling switching means (6, 7) conducts, and that, during the negative half-wave of the alternating-current supply voltage, the freewheeling arm with the freewheeling switching means (4, 5) conducts in the freewheeling arm with the freewheeling switching means (6, 7) blocks, characterized in that a holding circuit (13, 15) is provided, which either directly or indirectly influences the load-current switching means (8, 23) via the control network (75, 18) in such a way that, during a hold range (H) located in the region of the zero-axis crossing of the alternating voltage, the load current switching means (8, 23) remains either in an opened or in a closed switch position, it being the case that a first hold-range limit (H1 ) limiting the hold range (H) is temporally predetermined at the latest by the zero-axis crossing of the alternating voltage, and a second hold-range limit (H2 ) is temporally predetermined at the earliest by the following zero-axis crossing of the lagging alternating current, and that the hold range (H) covers at least that phase range 0 < vphi x < vphi 1 in which disturbing induced voltage pulses occur.
Patent DE-3679229-D1 (DE)
Inventor: BARTHOLOMEW ROY E
IPC: E21B17/01
Filed: 1986-02-28
Granted: 1991-06-20
Abstract: A flotation riser having a series of annular chambers with a riser string extending in free-standing relation through said chambers, means for supplying gas to the chambers to control buoyancy, means to supply gas to a plurality of the lowermost chambers to provide an emergency supply of deballasting gas, and means for remotely releasing said supply of gas into the chambers above to render the flotation riser free-standing to permit release from the floating platform during emergencies. A method of storing emergency deballasting gas and for emergency deballasting of the chambers to render the flotation riser freee-standing including the steps of supplying gas to the lowermost chambers, retaining the gas in said lowermost chambers, and remotely releasing the gas and conducting it to higher chamber to deballast such chambers sufficient so that said flotation riser is free-standing.
Patent DE-3684331-D1 (DE)
Inventor: FRINGS ADAM
IPC: B23K26/32
Filed: 1986-12-22
Granted: 1992-04-16
Abstract: The welding process joins the abutting edges of two metal sheets (7,8) with different thicknesses, to obtain a compound black which can then be pressed or deep drawn.  Pref. the two metal sheets (7,8) to be welded together are coated on at least one side by an anti-corrosion zinc layer, with the surfaces (5,6) of the two sheets (7,8) pref. relatively offset on the side from which the welding is effected. The laser beam (10) is pref. directed onto the welding zone at an acute angle, with the greater part of the obtained weld (14) incorporated in the thicker sheet.  Pref. a gas cushion is provided beneath the weld (14) during the welding process.
Patent DE-3685026-D1 (DE)
Inventor: THEUS ULRICH
IPC: H03K19/096
Filed: 1986-07-09
Granted: 1992-05-27
Abstract: The MOSFET circuit has the p-channel and n-channel  transistor pairs (tp) supplied with inverse switch signals provided by a MOSFET!control!circuit!(C).!The!control!circuit!(C)!has!a p-channel transistor (p1), an n-channel switching transistor (st1) and an n-channel transistor (n1) across the voltage terminals (+U,-U) in parallel with a second series circuit comprising a second p-channel transistor (p2), a second n-channel switching transistor (st2) and a n-channel transistor (n2). The gates of both switching transistors (st1,st2) receive the clock signal (nt).  The gates of the n-channel transistors (n1,n2) receive inverse switch signals (x,xq) and the output switch control signals are obtained from the junction of each switching transistor (st1,st2) and the p-channel transistors (p1,p1).
Patent DE-3686388-D1 (DE)
Inventor: KLEINTJENS HENDRIK JOZEF
IPC: A22C7/00
Filed: 1986-10-13
Granted: 1992-09-17
Abstract: A method and an apparatus for dosing pieces of meat and suchlike particulate material, wherein the material to be dosed is compacted in a dosing chamber (5), only thereafter excess material is removed and finally the material is removed from the dosing chamber.
Patent DE-3687346-D1 (DE)
Inventor: ATKINSON ANTHONY
IPC: H05K1/09
Filed: 1986-09-03
Granted: 1993-02-04
Abstract: PCT No. PCT/GB86/00523 Sec. 371 Date Jul. 1, 1987 Sec. 102(e) Date Jul. 1, 1987 PCT Filed Sep. 3, 1986 PCT Pub. No. WO87/01557 PCT Pub. Date Mar. 12, 1987.A method of providing an electrical circuit wherein a carrier, which is a film of insulating plastic material with a circuit pattern thereon is supported in a mould and a moulding material is applied by the application of heat and pressure to provide a substrate so that the circuit is embedded in or within a three-dimensional surface of the moulded substrate.
Patent DE-3688714-D1 (DE)
Inventor: SCHALBERGER WOLFGANG
IPC: F27B9/16
Filed: 1986-05-14
Granted: 1993-08-26
Abstract: A cylindrical heat treating furnace comprises a first support (2) having a shaft (20) with fixed rod-like support elements (8) which can be moved vertically or rotationally and a second support (3) fixed to the furnace via rods (35) and connected to the first support via guide covers (30,30') through which shaft (20) can freely move.