baber/WOPTO huggingface dataset:
Patent DE-4122995-A1 (DE)
Inventor: FUJIKAWA TAKAO
IPC: B29C33/56
Filed: 1991-07-11
Abstract: A die for injection or compression moulding or thermoforming of plastic materials, comprises a die body strength member (1, 2), heat insulating layers (4, 5) of an insulating material, heating layers (6, 7) of electrically conductive material provided on the cavity side of the heat insulating layers, and protective layers (8, 9) of abrasion-resisting material provided on the cavity side surface of the heating layers. The die body material may be soft-steel, or chrome-molybdenum or tool steel. The heat insulating layer material may be of glass powder, zirconia, or alumina. The heating layer material may be Ni-P, nichrome, TiN, TiC. The protective layer material may be of Cr, TiN, or TiC, of greater electrical resistance and better heat conductivity respectively, than the heating and insulating layers. The materials may be inclined (Fig 3) in each layer to prevent peeling and heat cracking. A plurality of separately heating systems may be provided with localised control/ thermocouples. <IMAGE>
Patent DE-4123668-A1 (DE)
Title: Mechanism for feeding foil material to an intermittently working hose bag machine - has form shoulder to which transport device is fitted so the foil material is unrollable from a storage roller
Inventor: KEIM DIETER
IPC: B65B9/20
Filed: 1991-07-17
Abstract: A compensation roller (4) is fitted between the storage roller (3) and the form shoulder (2) and between the compensation roller and the form shoulder is a brake roller (5) provided with a selectively operable brake. The foil material winds around the brake roller at an angle of 180 deg. The brake roller is fitted between two stationary guide rollers (6,7) and the compensation roller is located on a pre-tensioned pinion (8). The brake roller has a rubber-type a high frictional value top surface and the brake fitted is electromagnetically operable. USE/ADVANTAGE - When the foil material is stationary a brake roller retains it and prevents any jerky accelerations.
Patent DE-4127132-A1 (DE)
Title: Belt filter esp. for vacuum filtration - has separate filtrate and sealing water drainage systems
Inventor: ROZANSKI KLAUS
IPC: B01D33/04
Filed: 1991-08-15
Abstract: A belt filter, esp. a vacuum belt filter e.g. for suspensions contg. crystallisation prods. has a circulating belt with drain openings in its middle region, below which is located a chamber (esp. a vacuum chamber) which has a filtrate drain and which is sealed against the belt by a water seal. A drainage device for collection and discharge or recirculation of the sealing water, is provided in the region of the chamber. ADVANTAGE - The filtrate concn. is maintained and the sealing water system is optimised.
Patent DE-4127925-A1 (DE)
Title: Mfr. of insulating, monocrystalline silicon@ island for microelectronic IC - by oxygen implanting doped monocrystalline silicon@ region, depositing epitaxial silicon@ layer, forming trench, forming mask on silicon@ wafer etc.
Inventor: VOGT HOLGER DR ING
IPC: H01L21/763
Filed: 1991-08-23
Abstract: Insulated, monocrystalline silicon island is mfd. by 1) oxygen implantating in a monocrystalline Si region (1) which is lightly- or moderately doped, to form a buried, insulated Si02 layer (2); 2) annealing the layer structure (1,2,3) produced; 3) depositing a monocrystalline epitaxial Si layer (4); 4) producing a trench etching mask (5) on the epitaxial Si layers; 5) defining the trench by photolithography; 6) etching the trench as far as the buried, insulating Si02 layer (2) which serves as an etch stop; 7) filling the trench; 8) producing a mask on the rear face of the Si wafer; 9) locally opening the mask using photolithography; and 10) etching the Si (1) from the rear face of the Si wafer through the local opening in the mask to the buried, insulating Si02 layer (2) serving as the etch stop. USE/ADVANTAGE - The insulated Si island can be incorporated without problems in mfg. processes for microelectronic integrated circuits, and has improved electrical and thermal insulation. The mask on the rear face is silicon oxide or silicon nitride. The trench is filled with polycrystalline Si or with oxide. Boron or arsenic are used as the dopants for the trench sidewalls. The trench etch mask is produced by i) the deposition or thermal growth of an oxide layer (5); ii) the deposition of a nitride layer (6); and iii) the deposition of an oxide layer. The Figure is a cross-section through a semiconductor wafer in the early stages of mfr. Oxygen implantation is effected on the doped substrate 1 to produce a buried, insulating Si02 layer 2, which defines the n-type Si layer 3. The layer system 1,2,3 is then thermally annealed to convert the n-type Si layer 3 to a high-quality monocrystalline layer. An epitaxial Si layer 4, with a thickness of 1-10 microns, is then deposited, followed by a pad oxide layer 5, a nitride layer 6 which acts as a diffusion barrier, and a final oxide layer 7.
Patent DE-4131950-A1 (DE)
Title: Fluxes and remelting fluids for circuit board mfr. - comprising alkane phosphonic acids and/or their salts, half ester(s) di:ester(s) and half ester salts
Inventor: JUNG KARL-HEINZ DR
IPC: B23K35/36
Filed: 1991-09-25
Abstract: Use of alkanephosphonic acids (I) and/or alkanephosphonic acid half esters (II) and/or alkanephosphonic acid salts (III) and/or alkanephosphonic acid half ester salts (IV) and/or alkanephosphonic acid diesters (V) as fluxes and remelting fluids in the prodn. of circuit boards: in which Mr+ = Li+, Na+, K+, NH4+, Mg2+, Ca2+, Al3+, Ti4+, Zr4+, H3N-C2H4OH+, H2N(C2H4OH)2+, HN(C2H4OH)3+, H3N-CH2-CH(OH)CH3+, H2N(CH2-CH)(OH)CH3)2+, HN(CH2-CH(OH)CH3)3+, morpholinium cation or piperidinium cation; R1 = 1-24C satd. alkyl gp., 3-6C unsatd. alkyl, 5-12C cycloalkyl, opt. substd. phenyl, opt. substd. naphthyl, or opt. substd. benzyl, R2 = (CH-CH2-O-)m-R6 in which R5 = H or Me or Et with m = 0 (in the case where R6 = 1-24C straight or branched, satd. or unsaturated alkyl or opt. substd. 5-12C cycloalkyl) or m = 1-25 in the case where R6 = H, phenyl or substd. phenyl; 1-24C straight or branched, satd. or unsaturated alkyl or 1-24C satd. or unsaturated acyl; or R2 may also be an amino oxalkylate of formula -(CHR5-CH2-O-)m-1-CHR5-CH2N-(R7)2 in which R7 = 1-22C alkyl or -(CHR5-CH2-O-)m-H in which m = 1-25 or the residue of a polyhydric alcohol such an penta erythritol, hexitol or glycerine; R3 = -(CHR5-CH2-O-)m-H with m = 1-25 and R4 = -(CHR5-CH2-O-)m-H with m = 1-25 and R3 and R4 may be the same or different. USE/ADVANTAGE - The cpds. (I)-(V) are useful as fluxes applied to circuit boards prior to hot tinning or as remelting fluids for remelting Sn-Pb alloys in the prodn. of circuit boards. The cpds. (I)-(V) have high thermal stability at temps. up to 200 deg.C, are water soluble or dispersible in water, have a pronounced wetting effect (surfactant character), do not form gels with water, do not evolve any toxic materials and have good biodegradability (can be eliminated biologically in clarifier units).
Patent DE-4131969-A1 (DE)
Inventor: HABERGER KARL
IPC: G01N33/28
Filed: 1991-09-25
Abstract: Described is a method of determining the time at which lubricating oil, in particular lubricating oil in thermal engines, should be changed. The invention is characterized in that the lube-oil pressure, temperature and viscosity are measured in situ, the measured values being fed to a processing unit which determined the current status of the oil. The measured status of the oil is compared with a pre-determined reference status and the difference between the measured status and reference status is indicated on a display and/or, if the difference between the measured status and reference status exceeds pre-determined tolerance limits, an alarm signal is generated.
Patent DE-4135218-A1 (DE)
Title: Leakproof plastic tank for water heater - has threaded base neck with simple O=ring and outer screwed ring of e.g. polyphenylene oxide which ensures watertight fit even when heated
Inventor: HENKE GUENTER
IPC: F24H9/18
Filed: 1991-10-25
Abstract: A plastic water tank for a hot water heater has an externally threaded neck with a screw ring which can press a flanged plate axially against the neck. The neck has also an outer retaining face; a corresponding face on the inner side of the ring meets that face; and the material of the ring has a lower coefficient of thermal expansion than that of the neck. The ring is preferably made of polyphenyleneoxide. The thread (3) on the bottom neck (2), is only on segments of the neck circumference. The tank (1) rests inside insulation (4). A step (7) on the inside of the neck (2) holds an O-ring resting on the flange of a rounded copper plate (9) which carries the heater (10). The one-piece ring (12) is internally threaded (13) so as to engage the threads (3) on the neck. When this ring (12) is tightened its base (14) tightens on the rim (11) of the flange (9). Beneath the thread (3) the face (15) on the neck is cylindrical and meets the face (16) (at least) the neck expands because of the heated water in the tank (1). ADVANTAGE - The structure is securely water-tight (unlike earlier types). It is simple. An O-ring seal is all that is required. The preferred polymer for the ring has a significanly higher E-modulus than the polypropylene of the tank.
Patent DE-4137383-A1 (DE)
Title: Shaft for two-part endoprosthesis - has  one part made from biologically resorbable material
Inventor: KIENAPFEL HEINO DR
IPC: A61F2/02
Filed: 1991-11-14
Abstract: The endoprosthesis shaft (10) consists of two parts (12, 16). The shaft part (16) has its middle and/or distal section made from a material which is biologically resorbable, whilst the remaining part (12) is made from a material which is not resorbable. The non-resorbable part has an open cellular or open pore surface structure. The resorbable shaft part extends to the distal end (18) of the shaft. The non-resorbable part has an end part of reduced dia., which fits in a longitudinal hole in the resorbable shaft part. USE/ADVANTAGE - For knee joint tibia or femur components,without irritation or damage to bone tissue.
Patent DE-4138700-A1 (DE)
Title: Prodn. of ferromagnetic needle-like gamma iron (III) oxide - having high coercive field strength and used in prodn. of magnetic recording supports
Inventor: VAETH GUENTER
IPC: G11B5/706
Filed: 1991-11-26
Abstract: Prodn. is claimed of needle-like gamma-Fe(III) oxide modified with Sn-dioxide from Fe(III) oxide hydroxide contg. Lepidocrokite obtd. by adding alkalis to an aq. Fe(II) salt soln. under simultaneous oxidn. by introducing air into the aq. suspension, reducing the Fe(III) oxide hydroxide with H2 at 280-550 deg.C to magnetite and subsequently oxidising the magnetite with O2-contg. gases at 200-380 deg.C to form needle-like gamma-Fe(III) oxide. The prodn. of the Fe(III) oxide hydroxide contg. 5-40 wt.% residual Fe(III) the Sn-dioxide in an amt. of 0.1-1.0 wt.% is pptd. to aq. suspension by adding a hydrolisable Sn-cpd. and then the residual Fe(II) converted to Fe(III) oxide hydroxide. The Sn-dioxide-contg. Fe(III) oxide hydroxide is pref. tempered before being reduced to magnetite at 280-550 deg.C. USE/ADVANTAGE - The ferromagnetic Fe(III) oxide can be used in the prodn. of magnetic recording supports. It has a high coercive field strength and consists of stable individual particles which are not destroyed in the dispersing process necessary for the mfr. of magnetic supports.
Patent DE-4140867-A1 (DE)
Inventor: MAURUS GEORG
IPC: E04F13/08
Filed: 1991-12-11
Abstract: In a façade construction, the façade elements (11) used to decorate buildings are held on supports (18) linked to the building. In order to reduce production costs of the façade elements (11), the façade elements (11) are linked to the supports (18) by at least two mutually opposed edges (14, 15). For that purpose, a U-shaped gripping section (32) screwed on the first edge grips the support (18) from behind, whereas the bead of the second edge (16) engages a U-shaped holding section (26) linked to the support (18).
Patent DE-4141181-A1 (DE)
Title: Magnetic recording medium with improved recording density - uses thin film of cobalt containing oxygen with the main magnetic axis at 20 to 80 degrees with the horizontal deposited by evaporation
Inventor: KITAKAMI OSAMU
IPC: G11B5/66
Filed: 1991-12-13
Abstract: The magnetic medium features a magnetic layer composed mainly of Co and oxygen and has magnetic anisotropy with the main axis oriented at an angle of 20-80 degrees with the surface of the non-magnetic substrate, pref. 40 deg. or more. The coercive field-strength Hs at the surface of the magnetic layer is larger than the coercitive field strength Hb at the interface with the substrate, pref. 600-2000 Oe with Hb less than 600 Oe or especially 800-1500 Oe with Hb at 300-500 Oe. The film compsn. is pref. (FexCoyNiz)(100-m)Om in which x+y+z = 100, x is 0-10, z is 0-40 and m is 5-20. The wave-form reproduced by a recording is pref. characterised by a ratio r of the pulse-height below to the pulse-height above the base-line of 0-0.3 when a ring-head is used. The ring-head used pref. has a gap-width of 0.1-0.5 micron. The magnetic film can be deposited directly on the non-magnetic substrate or on a non-magnetic substrate. USE/ADVANTAGE - The film shows improved signal/noise ratio and allows an increased recording density compared with vertically and longitudinally magnetised films. The structure allows the film to be magnetically saturated during recording. the films are used for optical storage.
Patent DE-4200661-A1 (DE)
Inventor: OCHOTZKI HORST
IPC: F02B61/04
Filed: 1992-01-14
Abstract: In a process for running an internal combustion engine, especially a marine diesel engine, compressed air is taken to the cylinders by an exhaust gas turbo-charger (1). Said air is cooled before its introduction into the cylinders. Part of the charging air, however, by-passes the cooler (5). Its quantity is determined so that the charging air temperature behind the cooler (5) for all the charging air is above the dew-point and does not exceed the maximum permissible temperature for the engine. It is thus possible to increase the charging air pressure. The by-pass line (9) is fitted with a control valve. The air cooler is water-cooled. A cooling jacket (12) may be fitted around the by-pass line (9).
Patent DE-4202223-A1 (DE)
Title: Coupling system facilitating use of dental handpiece - connects to drive motor or supply line for illumination unit for working area and lamp(s)
Inventor: PERNOT JACQUES
IPC: A61C1/18
Filed: 1992-01-28
Abstract: The coupling system is also designed for handpieces or motors with light conductors. The supply lines and the motors are provided with a lamp holder for a bulb to conduct beamed light in the light conductors. The coupling system (5) is designed as a replacement for the lamp, and is electrically, mechanically and geometrically compatible with the lamp holder with which it makes contact. The coupling system is designed as a modular component, and can be mounted to take the place of the lamp which it replaces. The handpiece (10) has a combined design, in order to ensure a contact if it is coupled with the motor (1) or the supply lead. The module is designed as an insulating piece provided at its rear side with contacts (6, 7) and at its front side with contacts (8, 9) respectively matching contacts (3, 4) of the motor (1) and the contacts (11, 12) of the handpiece (10). USE/ADVANTAGE - Coupling system developed so it can be connected with handpiece which has 1 or more lamps at front, with motor or supply lead for handpiece with light conductor.
Patent DE-4203206-A1 (DE)
Title: Mixer for input and LO signals - filters at least part of mixer prods. by matching to transformer electric line lengths
Inventor: FRAISSE HANS DIPL ING
IPC: H03D9/06
Filed: 1992-02-05
Abstract: The mixer has two transformers interconnected by a diode structure. At least a part of the mixing prods. is filtered out already in the mixer by matching of the transformer electric line lengths. Pref. the mixer is of a toroidal or push-pull type. The two transformers are typically of Guanella type, with at least one formed by microstrip line technique. Their electric line length may be so chosen that their operational factor meets an equation related to a frequency dependent variable and the wave resistance. USE/ADVANTAGE - For modulators, frequency converters etc. in telecommunications, without need for series-connected filters, but with clean output signal.
Patent DE-4207557-A1 (DE)
Title: Instrument for widening stenosis in body lumen
Inventor: LINDENBERG JOSEF
IPC: A61F2/00
Filed: 1992-03-10
Abstract: The applicator (3) and the endoprosthesis are arranged at least partly axially overlapping and the applicator is fitted radially between the sluice (2) and the endoprosthesis (1). The applicator at its front end, partic. over the length over which it engages over the endoprosthesis, is axially split. At the front end of applicator are tabs (4) which are sepd. axially by slots.At least on the rearward face side of the endoprosthesis is a counter holder. The sluice is axially movable in relation to the applicator and the counter holder. An axially effective releasable blocking element (9) is provided for the sluice and applicator.
Patent DE-4208466-A1 (DE)
Title: Pen- or pencil-clip - has small box sliding over resilient bracket and containing spring pressing its bottom against pen
Inventor: WEBER KARL
IPC: B43K25/02
Filed: 1992-03-17
Abstract: The clip is for a ballpoint- or fountain pen or pencil. It comprises a resilient bracket (2) secured to the pen (10) etc. and extending parallel to and clear of it. A small box (3) is slid over the bracket, and contains a spring (4) acting between its bottom (13) and the bracket, so as to thrust the bottom away from the bracket and towards the pen. The spring can be of the arched leaf-type, while the box can be open towards the bracket, with portions of its walls fitting over the latter, and typically with lugs enclosing the bracket end. There can be a slot in the box bottom, allowing the lugs to be spread apart on assembly. USE/ADVANTAGE - Pen- or pencil-clip always remains parallel to edge of breast pocket etc.
Patent DE-4211730-A1 (DE)
Title: Humus floor pref. for steep slopes or strongly water-loaded areas - uses refuse compost from recycling process bound with pozzuolanic dust from flue gas cleaning plant
Inventor: HOELTER HEINZ PROF DR
IPC: C09K17/40
Filed: 1992-04-08
Abstract: Organic residues, prepd. with adhesive substances, which do not prejudice the growth properties of the organic humus floor, e.g. puzzolanic dust from flue gas cleaning, are mixed together so that with addn. of water they provide an increased binding strength in the growth area. On stoney, smooth and/or steep growth surfaces, an adhesion consolidation is firstly undertaken with a rough surface structure, which during the binding process has the simultaneous addn. of the growth floor. Refuse mass in its binding strength is enriched by decayed plaster substances. USE/ADVANTAGE - To promote crop growth on stoney, waterlogged and steep surfaces
Patent DE-4212439-A1 (DE)
Title: Screen printing machine with reciprocating printing table - has pre-positioning stop and holder for sheet end on table end facing stacker
Inventor: THIEME WERNER
IPC: B65H5/04
Filed: 1992-04-14
Abstract: The printing table (2) reciprocates between the printing and the loading positions. There is a stacker (12) for the sheets to be printed, from which the sheet (3a) of the stack (13) is applied to the table pre-positioning stop (22) by a transfer mechanism (20). The pre-positioning stop and holder (23) for the deposited sheet are fitted to the table end (2a) facing the stacker. There is a positioning mechanism (14b) bridging the gap between the table end and the stacker and supporting the sheets at the table surface level. USE/ADVANTAGE - Screen printing machine. No sagging of proportioned sheets, without need for table moving up to stacker in loading position.
Patent DE-4213338-A1 (DE)
Title: Treatment of impotence
Inventor: STIEF GEORG DR
IPC: A61K31/54
Filed: 1992-04-23
Abstract: Treatment of erectile dysfunction comprises admin. of sydnonime of formula (I) or salt. In (I), R1 is -NR4R5; 2-R6-1-piperidinyl; N-R6-N-(1,1-dioxo-tetrahydrothiophen-3-yl)-amino; or a gp. of the formula (a) or (b); A is H; COOH; or 2,2-dialkyl, 2,6-dialkyl or 2,2,6,6-tetraalkyl substitution; R2 is H; hal; alkyl opt. substd. by Ar, ArO, ArS, alkoxy, alkylthio or alkenylthio; or cycloalkyl; R3 is H; -NO; -SO2R8; or -COR7; R4 is alkyl; alkenyl; cycloalkyl; bi- or tricycloalkyl; alkyl-X-alkyl; aralkyl opt. substd. by alkyl or hal; 1,1-dioxo-tetrahydrothiophen-3-yl; or a heterocyclic gp. bonded via an alkylene chain; R5 is H or R4; R6 is alkyl; R7 is Ar opt. mono-, di- or tri-substd. by hal, alkyl and/or alkoxy and/or opt. mono- or di-substd. by NO2; arylalkenyl; tricycloalkyl; bi- or tricycloalkoxy; ArO; alkoxycarbonyl; pyridyl; pyrrolyl; imidazolyl; pyrazolyl; pyrazinyl; pyrimidinyl; pyridazinyl; OR2; or R2; R8 is alkyl; Ar opt. substd. by alkyl or hal; or dialkylamino; X is NR4; NSO2R8; NCO2alkyl; S(O)n; O; (CH2)m; or a single bond; n is 0-2; and m is 1-3; cpds. (I) where X is O and R2 and R3 are H are excluded.
Patent DE-4218842-A1 (DE)
Inventor: OFFENBROICH ADRIAN
IPC: F16S3/06
Filed: 1992-06-09
Abstract: The subject of the invention is a clamping device with a releasable connection of two profile pieces (1, 4), of which one (1) has an undercut longitudinal groove (2) and the other (4) exhibits a box-shaped hollow profile (5) into which there is introduced a clamping piece (6) with a hammer head (7) which engages into the longitudinal groove (2) and engages behind lips which delimit said longitudinal groove, the clamping piece (6) having an oblique surface (11) which runs transversely to its longitudinal axis and with which there interacts a clamping screw (15) which has a conical tip and is accessible through an opening (14) in the hollow profile (5). In order to simplify the design, the invention proposes that the clamping piece (6) be designed in one part and be composed of the head piece (8), of the tension piece (10) and of a resilient loop (9) which connects head piece (8) and tension piece (10), is bent through at least 180 DEG  and the elasticity of which is sufficient in order to lift the head piece (8) with the hammer head (7) when the clamping screw (15) is loosened. An eccentric may also be provided instead of the clamping screw (15). <IMAGE>
Patent DE-4223164-A1 (DE)
Title: New 9-carbamoyl-beta-carboline derivs. - used as benzodiazepine antagonists, inverse agonists and agonists for treating neuro:degenerative and psychiatric disorders
IPC: C07D471/04
Filed: 1992-07-10
Abstract: 9-carbamoyl-beta-carboline derivs. of formula (I) and their isomers and acid addn. salts are new. In (I), RA is H, halo, CHR1R2, opt. halo-, 1-4C alkoxy or amino-substd. Ph, hetaryl or OR5, and can be present once or twice; R1 is H or 1-4C alkyl; R2 is H, 1-4C alkyl, O-(1-4C) alkyl or opt. substd. Ph, benzyl or PhO; R5 is H, 1-6 alkyl, 3-7C cyclo alkyl or opt. substd. Ph, benzyl, hetaryl, or benzo-condensed hetaryl; R4 is H, 1-4C alkyl or 1-4C alkoxy (1-2C) alkyl; R3 = CO2(1-4C)alkyl, COR6, COOH or a gp. formula (a) or (b); X is N or CH; R6 is 1-4C alkyl, 3-7C cycloalkyl or opt. 1-4C-alkyl-, 1-4C alkoxy- or amino-substd. mono- or bicyclic 6-12C aryl; R7 is H, 1-4C alkyl or 1-4C alkoxy (1-2C) alkyl; R8 and R9 are each H, 1-6C alkyl, phenyl (1-2C) alkyl, or an opt. mono-, di- or tri-substd. mono- or bicyclic 6-12C aryl gp. USE/ADVANTAGE - (I) have good affinity for benzodiazepin receptors and have an antagonistic, inverse agonistic and agonistic effect on the properties of benzodiazepins. The reduction of the cramp thresholds for quisqualate shows that (I) have non competitive glutamate antagonistic properties and can be used in the prophylaxis and therapy of neurodegenerative and psychiatric diseases. Suitable daily doses are 0.1-1000 (esp. 1-30) mg/day.