baber/WOPTO huggingface dataset:
Patent DE-4128476-A1 (DE)
Title: Removal of metal film from an electrically-conductive film - by using the metal as an anode in an electrolysis bath
Inventor: GRUHLKE STEFAN
IPC: C25F5/00
Filed: 1991-08-28
Abstract: Removing a metal film (1) from an electrically non-conducting film (3), partic. from a loosely packed film of fluorescent material is as follows: the metal film is immersed in a bath of electrolyte (4) and connected as the anode to the positive terminal of a DC supply (5). A cathode (7) immersed in the bath is connected to the negative terminal. DC current is passed through the bath and the metal film is stripped off. Islands of metal remaining on the non-conductive film after electrolysis are removed by etching. The electrolysis bath pref. comprises an organic solvent with added conductive salts. A cathode of small surface area is used, which is moved parallel to the metal film. USE/ADVANTAGE - The process is used in the etching of printed circuit boards, and in the mfr. of cathode-ray tubes, and provides complete removal of the metal film.
Patent DE-4131187-A1 (DE)
Title: New block copolymers for prodn. of films, sealants and coatings - contg. as one block, polymer of cyclic aliphatic carbonate or copolymer with cyclic aliphatic ester and as other block, poly:siloxane
Inventor: LEITZ EDGAR DIPL CHEM DR
IPC: C08G77/445
Filed: 1991-09-19
Abstract: Block copolymers of formula A-B-A (I) are new where A = polymer of cyclic, aliphatic carbonate(s) or carbonate(s) and ester(s) (II); B = polysiloxane block. Prodn. of (I) is by reacting alpha,omega-dihydroxy-polysiloxane (III) with alkali metal or organo-alkali metal cpd. (IV) in aprotic organic solvent (V), then adding soln. of (II) in (V), polymerising and deactivating the active centres. Pref. block (A) is a polymer of carbonates of formula (IIA) and/or (IIB), or a copolymer with esters of formula (IIC), and block (B) is a polysiloxane of formula -O-(SiR7-O)o-; R1 = -CH2CH2CHMe-, -CH2CH2OCH2CH2OCH2CH2- (gp.b), -CH2CHMeCH2CH2CMe2CH2-, -CH2CH2O-Phe-CMe2-Phe-OCH2CH2-, -CHMeCH2O-Phe-CMe2-Phe-OCH2CHMe-, -CH2-CMe2-CH2-, gp.(i) or -CH2-C(Et)(n-Bu)-CH2- (with Phe = p-phenylene); R2 = linear 4-12C alkylene, a gp. of formula (b) or -CH2CH2OCH2CH2-; R3-R6 = H, 1-6C alkyl or alkoxy, 3-6C alkenyl or (2-6C alkenoxy)-(1-6C alkyl); m, n = 0, 1, 2, 3, 4, 5 or 6. R7 = 1-20C linear alkyl, 3-12C branched alkyl or 6-20C aryl; o = 3-1400. Pref., (A) is polyneopentyl glycol carbonate or a copolymer of neopentyl glycol carbonate and epsilon-caprolactone, and (B) is polydimethylsiloxane. Pref., block (A) and (B) have Mn 2000-50,000 and 500-50,000 respectively. Polymerisation is effected in toluene at -20 to +50 deg. C, and polymerisation centres are then deactivated, e.g. with MeOH/HCl. USE/ADVANTAGE - (I) are useful for the prodn. of films, sealants and coatings, esp. for applications requiring improved long-term properties, and for the prodn. of resin-like, thermoplastic packaging materials. In an example, a soln. of 0.11 g OH-terminated polydimethylsiloxane (Mn = 900) in 20 ml toluene was mixed with 2.5 mol 0.1M sec.-BuLi soln. and stirred for 30 mins., then a soln. of 5 g neopentyl glycol carbonate in 40 ml toluene was added and the mixt. was allowed to react for 16 hrs. Mixt. was worked up by deactivation with 2 ml 5% H3PO4/MeOH soln. and pptn. in 150 ml MeOH to give (I) in 89 yield. Prod. had Mn = 61,000.
Patent DE-4134116-A1 (DE)
Title: Analysing muscular condition of vagina or anus - determining surface forces on inserted probe and detecting local force distribution
Inventor: SEITZ PETER
IPC: A61B5/22
Filed: 1991-10-15
Abstract: The method involves inserting a probe into an orifice, measuring the forces acting areas of the probe surface, and using the distribution of forces for analysis. The multidimensional course of muscular forces is determined dynamically during the period of effect. The probe comprises a flexible cylinder of variable diameter, with several sensitive areas (2) on the outer surface. Sampled measurement values from the probe are fed to a data processing appts. for analysis and display of individual areas or groups of areas. USE/ADVANTAGE - E.g. measuring recovery process of cervix or uterus after operation or birth. Exact, reproducible measurement of muscle force/pressure.
Patent DE-4140281-A1 (DE)
Title: Animal body and manure disposal - uses continuous steam sterilising with air and water cleaning, to give virtual waste-free operation
IPC: A23K10/26
Filed: 1991-12-06
Abstract: The assembly to dispose of animal bodies and/or manure, in a virtually waste-free operation, has a vaporising and heat exchanger system at the exhaust air channel of the triple-phase separator for the water sepd. from the solids and fats. An anaerobic treatment stage is between the system and an aerobic cleaning stage, with its outlet linked to an air stripper to separate ammonium from the waste water before it enters the aerobic cleaning stage. A forced recirculting steamer is pref. used for the steaming. The dryer is pref. a disc dryer. The aerobic refining stage is pref. followed by an ion exchange to extract any heavy metals, e.g. copper and zinc, ingested by the animals. The exhaust steam channels, from the dryer for the solids, form the steam channels for the evaporators for the watery phase. ADVANTAGE - The system requires less energy and has no waste water problems. Cost savings are achieved by operating the assembly with the exhaust steam from a power station.
Patent DE-4141326-A1 (DE)
Title: Shaft rotary bearing for vehicle air conditioning flap displacement - has wedge-shaped frictional surfaces and loading spring to eliminate play
Inventor: GANSER MARTIN DIPL ING
IPC: G05G1/08
Filed: 1991-12-14
Abstract: A rotary bearing has a support surface transverse to the rotation axis. When the shaft is axially loaded the surface moves towards an essentially parallel surface on an axially fixed counter object. The support surfaces are wedge-shaped frictional surfaces which are held in a friction position which substantially takes up the play of the shaft when under an axial force continuously acting on the shaft. The axial force is produced by a helical loading spring (18). USE/ADVANTAGE - Esp. for shaft of adjustment device. Rotary bearing eliminates play in shaft.
Patent DE-4203201-A1 (DE)
Title: New amidine derivatives are LTB antagonists - useful for treating allergic disorders e.g. asthma, colitis ulcerosa or psoriasis
Inventor: ANDERSKEWITZ RALF
IPC: C07C323/20
Filed: 1992-02-05
Abstract: Amidino-benzene, pyridine, thiophene or naphthalene derivs. of formula (I), as racemates or in enantiomerically pure or enriched form, opt. as diastereomer pairs or as cis- or trans-isomer, and their salts are new. In formula (I), R1, R2 are e.g., CF3, halogen, R5, OR5, COR6, SR6, SOR6, SO2R6, etc.; or R1+R2 on adjacent C is CH=CH-CH=CH, OCH2CH2, OCH2O, OCH2CH2O, etc.; R3 is e.g. halogen, OH, CF3, R5, OR6, COR6, SR6, SOR6, SO2R6; provided that R3 can only be H when at least one of R1 and R2 is other than H; R4 is halogen, R5 or OR5; R5 is H, 1-12C alkyl or phenyl (opt. substd. by halogen, 1-4C alkyl, 1-4C alkyl, 1-4C alkoxy or 2-5C acyl); R6 is 1-12C alkyl or phenyl (opt. substd. by halogen, 1-4C alkyl, 1-4C alkoxy or 2-5C acyl); A is X1-A1-X2, X2-A2-X3, X4-A2-X2, (CH2)x-NHCO-(CH2)y-X2 or CH=CH-A2X2; x is 1 or 2; y is 1-3; B is CH=CH, CH=N, S or o-phenylene; A1 is 2-4C alkylene, cis- or trans-CH=CHCH2, CH2CCCH2, -CH2-cyclohexylene-CH2 or -CH2-phenylene-CH2-; A2 is 1-5C alkylene; X1 is O, NH, S, SO, SO2, CO or CH2; X2 is O, NH or S; X3 is NHCO, CONH or SO2NH; and X4 is NHCO, CONH, NHSO2 or SO2NH. USE - (I) are leukotriene B4 (LTB4) antagonists and are used for prodn. of medicaments for treatment of diseases involving inflammatory and/or allergic reactions, esp. asthma, ulcerative colitis and psoriasis. (I) are administered topically, orally, transdermally, intranasally, parenterally or by inhalation, opt. in combination with other drugs, e.g., antiallergics, secretolytics, beta(2)-mimetics, steroids, antihistamines or PAF antagonists. Typical dose is 10-250 (pref. 20-200)mg orally or 2-20mg by inhalation. Typically EC50 for inhibition of LTB4-induced neutrophil aggregation is 0.5-0.05 micro-M.
Patent DE-4204752-A1 (DE)
Inventor: MAYR KONRAD DR
IPC: F24B1/02
Filed: 1992-02-18
Abstract: The invention describes a stove (1), especially a solid fuel stove with a combustion chamber (2) divided into a hearth (32) and an after-burner (43), and the hearth (32) with least one hearth door (4, 5) into which a primary and a secondary air supply aperture opens and which has a separate after-burner air supply device (27) for the after-burner (43) arranged between the hearth (32) and a flue gas outlet (23). The combustion chamber (2) is lined with a high-temperature-resistant insulating material (44), and the after-burner air supply device (27) is arranged in a separating wall (31) dividing the combustion chamber (2) and there are outlet apertures (35) from an air duct (33) of the after-burner air supply device (27) in a face (34) of the separating wall (31) facing opposite a combustion chamber wall (49). The passage cross-section (36) of an aperture (62) enclosed by this separating wall (31), the combustion chamber wall (49) and possibly side walls (7, 8) of the hearth (32) is smaller than 25 % of a maximum cross-sectional area of the hearth (32) running parallel to a base plate (16) of the hearth (32).
Patent DE-4205958-A1 (DE)
Title: Fuel heater with resistive element for diesel engine - supplies heat to first few amts. of fuel injected during cold start until spontaneous ignition is achieved
Inventor: KAMPMANN HANS-JUERGEN DR
IPC: F02M31/125
Filed: 1992-02-27
Abstract: The IC engine heating element (5), in the supply line (3) from a fuel pump (2) to the engine (1), has its temp. raised by 100 K. The necessary 1500 J for a single-cylinder swept vol. of e.g. 1500 cubic.cm (as in a heavy goods vehicle engine) can be supplied by a 100 W element in 20 seconds. Self-ignition is attained after about three injections of 150 to 200 cu.cm of heated fuel. The element is installed as near as possible to the injector (4), and switched off as soon as combustion begins. USE/ADVANTAGE - With cold-pressed refined rape oil or animal fat. Natural cold-starting temp. can be reduced without needing second fuel to help ignition.
Patent DE-4208790-A1 (DE)
Inventor: HENSELER KLAUS
IPC: B65H27/00
Filed: 1992-03-19
Abstract: The invention relates to a winding device for paper or cardboard having at least two axially parallel supporting elements for the web reel which extend at least over the length of the web reel (T) and at least one of which is a carrier roll (2). The invention is characterised in that the other supporting element has a rigid carrier (4) which guides the web reel over a tubular sleeve (7, 7') which is arranged or guided rotatably about the carrier and over a carrying shoe (5, 5') which is connected to said sleeve, is hydrodynamically effective with respect thereto and is provided with a concave pressure surface (12, 12') which has a radius of curvature corresponding essentially to the largest reel (T) with the addition of the sleeve wall thickness, it being possible to adapt the carrying shoe (5, 5'), in its position, to the respective wound size (position of the circumference) of the web reel (W'). <IMAGE>
Patent DE-4213235-A1 (DE)
Title: Gas or vapour concn. measurement using fluorescence measuring device - with detection of light emitted by fluorescent reagent in measuring and reference sensor for error elimination
Inventor: GAVISH MOSHE DR
IPC: G01N21/64
Filed: 1992-04-22
Abstract: The concn. measurement uses a sensor element contg. a fluorescent reagent (S) and a reference sensor element (R) with the same fluorescent reagent which is isolated from the chemical environment, both sensors to a common optical fibre bundle (10). The emitted light provided by both sensors is detected and the gas or vapour concn. is calculated using calibration data relating to the employed reagent. Pref. the reference sensor is enclosed in an air-tight encapsulation, the AC voltages provided by the detectors demodulated in synchronism, their DC voltage ratio used to identify the gas concn. ADVANTAGE - Unaffected by temp. variations, drift, or ageing.
Patent DE-4215459-A1 (DE)
Title: Room ventilation signal evaluation of sensor of e.g. temp., humidity, light, pressure, gas, pH or flow - compares sensor input signals with averaged and fixed DC values, and outputs via OR=gate when either threshold is exceeded.
Inventor: RUMP HANNS
IPC: F24F11/00
Filed: 1992-05-11
Abstract: An electronic circuit forms an average value (6) of a sensor signal (4) over a freely selectable period. The average value is continuously compared with the input sensor signal to produce a switching signal at the output when the sensor signal exceeds the average value. The sensor signal is also compared with a fixed voltage (1) to produce a switching signal when the voltage is exceeded. The two switching signals are fed into an OR element which produces the final output when the sensor signal exceeds either the average value or fixed voltage. USE/ADVANTAGE - For processing sensor signals with physiologically matched switching characteristics, e.g. for switching on room ventilator when temp. exceeds defined value. System responds to changing conditions in physiologically sensitive manner.
Patent DE-4216692-A1 (DE)
Title: Motor vehicle with bodywork having openings closed by doors and flaps - has seal of flexible material with central cavity arranged between bodywork and opening assigned to each door and flap opening essentially along its periphery
Inventor: GLOEDE WILLI
IPC: B60J10/244
Filed: 1992-05-20
Abstract: The vehicle has a cavity (30) enclosed by walls (31) of a sealing gasket (3) forming at least one chamber sealed compared to the surroundings of the gasket. One of the walls at least is provided with a pressure fluid connection (32) opening and penetrating the gasket. A pressure fluid supply unit (40) communicates with the fluid connection, so that a pressure can be built up in the gasket chamber. The gasket is designed as a pressure tight cavity over its entire length. The cavity has several chambers acted on with pressure fluid independently from each other. ADVANTAGE - Reliable sealing of bodywork flaps and doors also at high speed.
Patent DE-4222025-A1 (DE)
Title: Laser beam strip butt welding process - involves laser trimming of clamped strip ends before welding
Inventor: BEHR FRIEDRICH PROF DR
IPC: B23K26/14
Filed: 1992-07-04
Abstract: In the laser beam butt welding of strips the strip end edges are cut off by a laser beam before welding. The roughly cut strip ends are trimmed at least once with the laser in the laser cutting and welding machine while the strip ends are clamped by jaws which apply a pressing force of at least 30t. per m. strip width. Each strip end is trimmed with a circularly polarised laser beam with a supersonic nitrogen flow into the cutting gap so that the cut edges exhibit (over two-thirds of the cut depth) a roughness (Rz) of max. 60 microns prior to welding, the free strip length, projecting beyond the clamping jaws after the last laser cut, being max. 50mm. Welding is carried out while the strps are still clamped. Appts. for carrying and the process is also claimed. USE/ADVANTAG - The process is used esp. in rolling mills for butt welding hot and/or cold rolled strip ends. It allows faultless welding even of strips of alloy steel contg. 12% Cr or more and of more than 3 (pref. 4-10)mm, thickness, without user of weld additive.
Patent DE-4222950-A1 (DE)
Title: Rotary heat exchanger utilising rotor of cross-flow ventilator e.g. for vehicle - presents reduced impedance to air flow for redn. of energy consumption and acoustic noise level in operation
Inventor: SCHIPS KARL
IPC: F04D17/04
Filed: 1992-07-13
Abstract: Heat exchange takes place between the hollow blades (5) of the ventilator and the external atmos. or gas while the rotor (3) is in rotation, cooling or warming the air inducted through a tube (1) in the wall (2) of the housing. The effect may be augmented e.g. by fins (6) on the outside of the rotor casing. The air is discharged through another tube (8) from a collector (7) which constitutes the hollow shaft of an internal-rotor motor (9). USE/ADVANTAGE - Esp. in vehicles, appts. saves space, material, wt., energy and cost by dispensing with any stationary heat exchanger and transition duct.
Patent DE-4226172-A1 (DE)
Title: Current supply element for PCBs with via holes - has rows of sharp-edged end-tapered pins flanking central hole into which bushing is pressed for e.g. transistor or heat sink
Inventor: KALLEE WERNER
IPC: H01R12/70
Filed: 1992-08-07
Abstract: A relatively flat plate (1) of conductive material has a regular pattern of contact pins (3) projecting at right angles from one face (2), with tips (5) in the shape of truncated pyramids to facilitate insertion into the via holes, making contact at the four sharp edges (4) of each pin. Between the rows of pins, a hole (6) in the centre of the plate accepts a bushing (9) with a knurled rim (10) of slightly larger dia. and a smooth or threaded bore (14) through its centre. USE/ADVANTAGE - With e.g. power transistors drawing substantial currents, simple element withstanding high electrical and mechanical loading can be mfd. at favourable cost and installed easily.
Patent DE-4227993-A1 (DE)
Title: Overvoltage protection circuit connected between mains lead and electrical load - has protective conductor and two phases connected to each other by plasma overvoltage conductors, varistors, diodes and circuit with central earth point
IPC: H02H9/06
Filed: 1992-08-21
Abstract: A plasma overvoltage conductor (UsAg3) designed for AC voltage is arranged between the common junction of the plasma overvoltage conductors (UsAg1, UsAg2) and the central earth point (6), and is connected in series with the phases (4, 4'). In addition varistors (VDR1, VDR2, VDR3) and diodes (D1, D2, D3) are arranged between the connections of the plasma overvoltage conductors (UsAg1, UsAg2), effecting a decoupling between the terminals of the components. Inductances (L1 - L7) are provided connecting with the phase inputs (2, 2'). ADVANTAGE - Improved suppression of transient steep voltage rises with h.f. sequences also sufficiently suppressed.
Patent DE-4230784-A1 (DE)
Inventor: SPIES MANFRED DR
IPC: C09J7/38
Filed: 1992-09-15
Abstract: Radiation-crosslinkable self-adhesive tape (dicing tape) for temporary fixing of wafers, having a base (carrier, support) of a radiation-transparent film and a radiation-crosslinkable self-adhesive composition, characterised in that the polymeric self-adhesive composition contains copolymerised radiation initiators, and in that the adhesive strength is reduced by irradiation.
Patent DE-4231274-A1 (DE)
Title: IC engine valve control - uses two cams and oil pressure for any arbitrary number of valves and cylinders.
Inventor: BOCK MARKUS
IPC: F01L9/11
Filed: 1992-09-18
Abstract: The control applies to a four-stroke engine and uses a casing, external to the engine, with the control cams and oil pressure feeds and receivers. It dispenses with heavy equipment, such as levers, rockers, and tilting mechanism. ADVANTAGE - Reduced inner resistances, wear, and engine weight, resulting in fuel and oil economy.
Patent DE-4234280-A1 (DE)
Title: Automatic packaging equipment
Inventor: TISMA STEVAN
IPC: B65B5/04
Filed: 1992-10-10
Abstract: The automatic packaging machine comprises a spaced parallel pair of conveyor chains for transporting mandrels. A pair of guide rails are connected between the conveyor chains for slidably carrying each mandrel, so that a mandrel may be moved in a product transport position to a loading station. At the loading station, the mandrel is thrust forward to confront a box so that the product may be pushed into the box.The mandrel may be made wider to accept product without a precise alignment between mandrel and product or more narrow to fit the product into a box at the loading station. Two cam slots are provided to independently control the thrust position and the width of the mandrel.
Patent DE-4234497-A1 (DE)
Inventor: HOELL JOHANN
IPC: B29C43/02
Filed: 1992-10-13
Abstract: In molding a carbon abrasive body for electric collectors or the like from a powder composition (7) containing graphite and resin bonding agents in a compression mold (1) with at least one molding plug (3), a thin layer of resin-free parting agent is applied between the powder composition and the molding plug to prevent the resin from adhering to the molding plug under the frictional heat of compression. Preferred parting agent is powdered copper, which also improves the contact resistance when the connection cables are imbedded in the powdered molding composition.
Patent DE-4235108-A1 (DE)
Title: Holder for refuse bags in support container - has container with clamping ring made of foldable paper material, securing bag in between.
Inventor: POLZER FERDL
IPC: B65F1/06
Filed: 1992-10-17
Abstract: The container  has a polygonal, pref. rectangular cross- section and is open at the top for inserting the bag (2).  The bag protrudes over the upper container edge and is then clamped by the rectangular section clamping ring (4) which is L-shaped in cross-section. Both the container and clamping ring can be folded flat.A similarly designed folding lid (7) of foldable paper material can be fitted onto the clamping ring.  Handles can be punched out of the side walls. ADVANTAGE - Low-cost mfr.of recycled material,and reliable hold.
Patent DE-4238635-A1 (DE)
Title: Construction and control for plasma display panel - has matrix of discharge regions formed by intersections between cathode and anode strips together with charge electrode strips
Inventor: KIM DAE-IL
IPC: G09F9/313
Filed: 1992-11-16
Abstract: The plasma display panel has a formed matrix of discharge regions, with a top glass plate (10) having a number of strip anodes (11) and barrier ribs (12). Charge electrode strips (14) are formed on a base of glass (13) and are at right angles to the anodes. The charge electrodes are overlaid with a dielectric layer (15) coupled to external capacitors. Cathodes (16) are formed in strips. The charge electrodes form two groups that are supplied with separate control pulses of a square wave form. ADVANTAGE - Improved power characteristic.
Patent DE-4239814-A1 (DE)
Title: Compressor with lateral passage - has passage inlet of smaller cross=section than passage or inlet union
Inventor: BALLING MANFRED
IPC: F04D23/00
Filed: 1992-11-26
Abstract: The compressor has radial inlet and outlet unions (2,3) on the housing (1), and which are connected by openings (4,5) to the passage (6). A dividing portion (7) separates the openings from each other. The cross-section of the inlet opening (4) is smaller than that of the passage or inlet union. The portions of different cross-section can be arranged to merge smoothly into each other, and there can be a V-shaped recess in the dividing portion at the side towards the inlet opening. the inlet and outlet portions of the compressor can be similar. USE/ADVANTAGE - Compressor with lateral passage gives reduced noise level without affecting output.