baber/WOPTO huggingface dataset:
Patent EP-0337753-A2 (EP)
Title: Chain saw for cutting aggregate material
Inventor: SCOTT LEWIS A
IPC: B27B17/12
Filed: 1989-04-12
Abstract: A chain saw for cutting aggregate materials includes a saw chain (24) of interconnected centre links and side link pairs composed of heat-treated steel. Certain pairs of the side links (42) support diamond impregnated matrix cutting blocks (44) that are laser welded to the side links in a process where the laser beam is focused and orbited along the juncture to avoid stress risers in the steel material of the supporting side links. Drawing down of the zone adjacent the weld also is controlled to avoid stress risers. the guide bar (26) is provided with a pattern of enclosed channels (70,72) for directing water to the guide bar groove at spaced positions on the periphery of the guide bar edge for flushing away the aggregate dust generated by the cutting process. To reduce adhesive wearing of the bearing surfaces, as between the saw chain components and as between the saw chain and guide bar, the guide bar rails, the rivet holes, and depending centre link tang portions of the saw chain are hard-surfaced.
Patent EP-0339896-A2 (EP)
Inventor: KOKTA MILAN RATISLAV
IPC: H01S3/16
Filed: 1989-04-24
Abstract: A laser crystal for generating a spectral emission between 1 and 3 microns when flash lamp pumped at room temperatures formed from a host material and a plurality of dopants in which chromium is included to sensitize the other dopants and improve beam penetration provided the chromium ion maximum level is no more than about 1.5 atomic percent based upon the octahedral sides of the garnet material structure.
Patent EP-0340986-A2 (EP)
Inventor: SHUSTER JEFFREY R
IPC: C12N15/09
Filed: 1989-04-28
Abstract: A method is provided for expressing non-yeast proteins under the control of  ADH2  regulatory sequences in a yeast host having enhanced expression of ADR I. Transformed yeast hosts are also provided.
Patent EP-0357314-A2 (EP)
Inventor: DICKINSON ALAN JOHN
IPC: E21B47/022
Filed: 1989-08-22
Abstract: A percussive-action mole 10 is energised by compressed air supplied through hollow rods 36 in a string 12 connected to the mole. A hydraulic motor 18 rotates the string and mole. The mole head 30 has a slant face 32 and a transverse permanent magnet 34. After each new rod is added to the string, the air is stopped to halt the mole which continues to be rotated. The field fluctuations from the magnet are detected by a magnetometer 24 using its probe at three positions 50, 52, 54 determined by a triangular frame 22 placed flat on the ground. Calculations using the three readings each representing the distance of the magnet from the respective position on the frame enable the position and depth of the magnet to be determined. After completion, the passage 38 can be reamed to larger diameter to receive a gas pipe or other service.
Patent EP-0361716-A2 (EP)
Inventor: HODGE STEVE
IPC: F04C11/00
Filed: 1989-09-08
Abstract: A gerotor pump can have a particularly short axial length by fixing the main shaft in the body (instead of journalling it in the body) and journalling the rotor on the shaft (instead of making the rotor fast with the shaft). Figure 3 shows an arrangement in which gear 24 transmits drive to the pump and has an axial extension 38 journalled on the fixed shaft 18 and keyed or splined at 46 to the rotor which surrounds the extension and hence is only indirectly supported and journalled on the shaft. 14 represents the usual annulus with which the rotor engages in conventional gerotor pump fashion.
Patent EP-0359500-A2 (EP)
Inventor: KITAHARA MIKIO
IPC: C08G59/06
Filed: 1989-09-11
Abstract: A resin composition for sealing semiconductors which comprises (a) an epoxy resin having a specific structure, a modified epoxy resin composed of (i) an epoxy resin having a specific strucure or a graft polymer of an epoxy resin having a specific structure and a vinyl polymer and (ii) a silicone polymer in an oily state or as particles having an average particle size of not more than 1.0 micron, which are uniformly dispersed in the epoxy resin or the graft polymer, (b) a hardening agent (c) an inorganic filler and (d) a special polymaleimide is herein provided. The resin composition for sealing semiconductors exhibits a low thermal expansion coefficient and a low elastic modulus, generates low stress when thermal shock is applied thereto and exhibits high heat resistance during soldering even after moisture absorption. Therefore, if the composition is used to seal large-scale semiconductor devices having high degree of integration or small-sized, this semiconductors such as flat packages, there semiconductors provide high reliability.
Patent EP-0361955-A2 (EP)
Inventor: DAVIDSON ANDREW ALAN
IPC: A01G31/00
Filed: 1989-09-29
Abstract: Hydroponic substrates are disinfected in situ, prior to a crop production cycle, with a dilute aqueous solution containing hydrogen peroxide and at least one peracid having a
Patent EP-0371767-A2 (EP)
Inventor: TOMOTAKE ATSUSHI
IPC: C07C255/54
Filed: 1989-11-28
Abstract: A silver halide color photographic light-sensitive material is disclosed in which a novel yellow coupler represented by the following Formula I is contained.
      wherein R₁ is a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; R₂ and R₃ are each a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X is a hydrogen atom, a halogen atom, an alkoxy group or an alkylamino group; Y, B₁ and B₂ are each a substituent; and m and n are each an integer of zero to 3.
Patent EP-0375399-A2 (EP)
Inventor: JOHNSON ROBERT G
IPC: H01C7/00
Filed: 1989-12-20
Abstract: The marginal adhesion of platinum to silicon nitride is a serious issue in the fabrication of microbridge mass air flow sensors. High temperature stabilization anneals (500-1000°C) are necessary to develop the properties and stability necessary for effective device operation. However, the annealing process results in a significant reduction in the already poor platinum/silicon nitride adhesion. Annealing at relatively high temperatures leads to the development of numerous structural defects and the production of non-uniform and variable sensor resistance values. The use of a thin metal oxide adhesion layer (44, 46), approximately 20 to 100 angstroms in thickness is very effective in maintaining platinum (45) adhesion to silicon nitride (42, 47), and through the high temperature anneal sequence. Moreover, incorporation of the thin metal oxide adhesion layer (44, 46) minimizes the development of structural defects, and results in significantly improved uniformity and control of platinum sensor/heater resistance characteristics.
Patent EP-0387559-A2 (EP)
Inventor: HAAB KARL
IPC: E06B3/50
Filed: 1990-02-22
Abstract: A door (1), which can be recessed into a door compartment (2), is fixed on a stop strip (4) which is guided on an upper rail (7a), fastened on a first side wall (6) of the door compartment (2), and on a lower rail (7b), and is fastened on a scissors cross anchored on the said first side wall (6) of the door compartment (2). To make possible a precise mounting of the door hanging before installation and to facilitate an adjustable design, the lower rail (7b) is also fastened on the first side wall (6). The two rails (7a,b) are screwed together with the sleeves, which are screwed in said wall and permit an adjustment of the rail spacing therefrom. The upper anchoring of the scissors cross lies on a fastening part (8), which is connected through the first side wall (6) to an adjustment part in such a way that when the latter is swivelled about a screw connection (9), common to both parts, said fastening part is also taken along. The stop strip (4) bears a roller (16) which, when the door (1) is not in a recessed position, presses against a plastic panel in the region of the front edge of said side wall. A setscrew (24) permits vertical displacement of the stop strip (4) relative to the scissors cross. <IMAGE>
Patent EP-0386655-A2 (EP)
Inventor: SAKAUE AKINORI MITSUBISHI KASE
IPC: C09C1/50
Filed: 1990-03-02
Abstract: A process for producing carbon black by means of a reactor comprising a first reaction zone in which a mixture of a fuel and an oxygen-containing gas, is burned, a second reaction zone having a throat in which the resulting high temperature combustion gas is mixed and reacted with a hydrocarbon feedstock, and a third reaction zone provided with a quenching water spray for terminating the reaction, which comprises directing the high temperature combustion gas formed in the first reaction zone to form an axial stream flowing in substantially the same direction as the axial direction of the reactor, dividing the axial stream into at least two independent streams differing in the spouting velocity and/or the spouting gas temperature, introducing the divided axial streams into the second reaction zone, and, in the second reaction zone, introducing the hydrocarbon feedstock from nozzles in a direction traversing the axial streams of the high temperature combustion gas.
Patent EP-0392562-A2 (EP)
Title: Magnetic device for scale prevention
Inventor: COSTALUNGA FRANCESCO DAVIDE
IPC: C02F1/48
Filed: 1990-04-13
Abstract: Appts. for treatment of water using magnetic fields to prevent deposition of calcium and magnesium salts. The appts. has a cylindrical body consisting of two circular structures housing a series of permanent magnets. Each of the structures is segmented such that the polarity of the magnets alternates and the structures are arranged such that their opposing faces are of opposite polarity. The lower of the two structures has a central cavity which houses the inlet and outlet pipes for the water under treatment. The upper structure is solid. The two structures are sepd. by a narrow, sealed inter ferric space. The inlet and outlet pipes each open into the inter ferric space where the flow is directed by a fork whose depth is equal to that of the inter ferric space. The outer prongs of this fork extend to the limits of the outlets of the pipes, whereas the central prong extends to the periphery of the inter ferric space, thus giving radial flow across the inter ferric space between the pipes, whilst passing through a series of magnetic fields of alternate direction. The inter ferric space is sealed laterally by an annular joint ensuring watertightness. Two plates of a ferric material resistant to oxidn. isolate the magnetic structures from the flow of water.
Patent EP-0396003-A2 (EP)
Inventor: SAKAI EIICHI
IPC: A61M5/168
Filed: 1990-04-24
Abstract: An air detector (13) according to the present invention utilizes a unitary type sensor for detecting air bubbles or columns in an infusion solution flowing through a tube (23). Because of a unique design for a tube-receiving groove (15) and a cooperating abutting nember (25), the difficulty in loading a tube heretofore encountered with the use of unitary type sensor is obviated. Thus, the tube can be loaded in the air detector easily with good reliability.
Patent EP-0405425-A2 (EP)
Inventor: EFFLAND RICHARD CHARLES
IPC: A61P17/00
Filed: 1990-06-26
Abstract: There are described compounds of the formula
       
 where 
n is 0 or 1; 
X is O or NR₂, R₂ being hydrogen, loweralkyl or loweralkylcarbonyl; Z is NO₂ or NHR where R is hydrogen, loweralkyl, arylloweralkyl or loweralkylcarbonyl; and 
R₁ is
       
 wherein R₃ is hydrogen, loweralkyl or loweralkylcarbonyl; m is 1 or 2; each R₄ is independently hydrogen or loweralkyl; and Y is hydrogen, halogen, loweralkyl, loweralkoxy or trifluoromethyl; 
which compounds are useful as topical antiinflammatory agents for the treatment of various dermatoses.
Patent EP-0417556-A2 (EP)
Inventor: PAWLOWSKI GEORG DR DIPL-CHEM
IPC: G03F7/075
Filed: 1990-08-30
Abstract: A positive-working radiation-sensitive mixture is described which contains, as essential constituents,   a) an  alpha -carbonyl- alpha -sulphonyldiazomethane which forms a strong acid on irradiation and has the general formula <IMAGE>  where R<1> and R<2> are, independently of one another, an optionally substituted alkyl, cycloalkyl, aryl or heteroaryl radical, b) a compound containing at least one acid-cleavable C-O-C or C-O-Si bond, and c) a water-insoluble binder which is soluble, or at least swellable, in aqueous alkaline solutions.   The radiation-sensitive mixture according to the invention is remarkable for a high sensitivity over a wide spectral range. It also exhibits a high thermal stability and does not form any corrosive photolysis products on exposure.
Patent EP-0424750-A2 (EP)
Inventor: HUTH HANS-ULLRICH DR
IPC: C09K23/52
Filed: 1990-10-12
Abstract: Ethylenically unsaturated, surface-active urethane derivatives, prepared by reacting alkyl, aryl, aralkyl or cycloalkyl monoisocyanates with hydroxypolyoxyalkyleneoxycarbonylalkenes or with N-(hydroxypolyoxyalkylene)alkenecarboxamides in the absence of water, in the absence of solvents or in inert organic solvents or optionally also in reactive thinners (diluents), i.e. copolymerisable, ethylenically unsaturated, monomeric compounds which are inert under reaction conditions, for example vinyl esters, vinyl aromatic compounds and (meth)acrylic esters. The urethane derivatives prepared according to the invention are surface-active in their monomeric form and are in most cases solid or waxy or high-viscosity products. Their solubility in water or in inert organic solvents or inert reactive thinners is highly dependent on the structure and size of the polyalkylene oxide radicals and on the size of the hydrophobic radical on the nitrogen atom of the urethane group, so that it is possible according to the invention to obtain monomeric urethane derivatives which are both readily soluble in water and readily soluble in inert organic solvents. These derivatives can be polymerised or copolymerised via their ethylenically unsaturated acyloxy or acylamido radicals and can be used in a versatile manner for the preparation of polymers or copolymers by free radical-initiated polymerisation or copolymerisation.
Patent EP-0437687-A2 (EP)
Inventor: GOTTO JOHN WILLIAM
IPC: C12P21/00
Filed: 1990-10-29
Abstract: A process for extracting and purifying a protein having an apparent molecular weight of about 69,000 daltons from the outer membrane of the bacterium  Bordetella pertussis  is provided. The process includes inactivating  Bordetella pertussis  cells with a bacteriostatic agent, repetitive extraction, and purification of the 69,000 dalton protein from extract by dye ligand chromatography followed by chromatofocusing. The process results in improved yield and stability of the 69,000 dalton protein.
Patent EP-0431619-A2 (EP)
Inventor: MAEDA MITSUO
IPC: H01S5/022
Filed: 1990-12-06
Abstract: It is an object of the present invention to provide a laser device of long life. In the laser device, light source (3) is housed in transparent cooling vessel (6), and the vessel is filled with a cooling liquid (9) which is circulated. The electrodes (4) of the light source (3) project out of the cooling vessel (6). Reflectors (5) are provided outside the cooling vessel (6). The electrodes (4) and the reflectors (5) are out of contact with the cooling liquid (9). 
     It is another object of the present invention to stabilize laser oscillation. A light source (3) is housed in a first transparent cooling vessel (1, 6). The first cooling vessel (1, 6) is filled with a first cooling liquid (9). A laser medium (2) is housed in a second transparent cooling vessel (7). The second cooling vessel (7) is filled with a second cooling liquid (10). A heat insulation layer (5) is provided between the first (1, 6) and the second cooling vessels (7) so that the first and the second cooling liquids (9, 10) are thermally insulated from each other.
Patent EP-0445420-A2 (EP)
Inventor: LINDIG MARKUS DR
IPC: A01N47/38
Filed: 1990-12-21
Abstract: The novel synergistic active compound combinations are composed of (1) ethofumesate, phenmedipham, chloridazon or quinmerac and (2) at least one 4-amino-1-carbamoyl-3-methyl-1,2,4-triazolin-5-one of the formula (I) <IMAGE>  in which R is in each case straight-chain or branched C1-C10-alkyl or halo-C1-C10-alkyl, straight-chain or branched C3-C8-alkenyl or C3-C8-alkynyl, or cycloalkyl which can optionally be substituted by methyl or trifluoromethyl, and can be used for selective weed control in beet crops where they act effectively even on weeds which are usually difficult to control.
Patent EP-0391559-A2 (EP)
Inventor: MORLEY JULIAN DAVID
IPC: G07F7/08
Filed: 1990-03-16
Abstract: A transaction system includes a portable electronic token and an external read/write unit which communicate by inductive coupling. The read/write unit transmits short pulses of an r.f. carrier when in its dormant mode and, upon detecting the presence of a token, switches its r.f. on continuously to power up the token and conduct a transaction. Thus, the system conserves power but can react rapidly when a transaction is necessary.
Patent EP-0390481-A2 (EP)
Inventor: MATSUDA TAKEHISA
IPC: A61F13/15
Filed: 1990-03-27
Abstract: A sheet material, coated with a surgical adhesive comprising an NCO-terminated urethane prepolymer, is used for bonding of tissues, with improved handleability. 
     Surgical instruments, comprising a non-adherent material towards an NCO-terminated urethane prepolymer, are used for application of surgical adhesive. Such instruments, comprising a rod tapered so that the tip can be partly inserted into blood vessel, are suitable for anastomosis of blood vessel.
Patent EP-0425159-A2 (EP)
Inventor: MARQUEZ AL HUMBERTO
IPC: A47J37/12
Filed: 1990-10-16
Abstract: A food product dispensing apparatus and method which prevents the product from being damaged when the product is dispensed. A food product cooking apparatus and method which preserves the cooking oil such that the oil needs only be changed at two to four week intervals. The present apparatus and method relates to vending-frying machines for dispensing and cooking food products. The instant invention extends the intervals between when such vending machines need be serviced.
Patent EP-0424156-A2 (EP)
Inventor: UENO RYUJI
IPC: A61K31/557
Filed: 1990-10-18
Abstract: A use of a 15-ketoprostaglandin compound for the manufacture of a medicament for treatment of a hepatobiliary disease.
Patent EP-0435597-A2 (EP)
Inventor: ROTH ROGER R
IPC: H05B41/392
Filed: 1990-12-21
Abstract: A load power control circuit (19) which adjusts the level of power provided to a load in response to changes in the impedance across control terminals (11, 12) includes a control circuit (16, 18)which disconnects the load from the power source when the voltage across the control terminals (11, 12) is within a certain range. The control circuit is particularly useful in controlling fluorescent light fixtures controlled by electronic ballasts because the control circuit (16, 18) avoids the need for a separate on/off switch for the fixtures.
Patent EP-0437110-A2 (EP)
Inventor: HANSEN KEITH J
IPC: C23C16/04
Filed: 1990-12-28
Abstract: In a method of forming a barrier layer for contacting a metal interconnect layer to one or more exposed N and p type silicon regions on a wafer, the wafer is heated with a direct radiation source, such as a lamp. To equalize the differing emissivities of the N type and P type silicon regions, an opaque layer of refractory metal is first formed on the regions at a temperature below approximately 100°C. A refractory metal deposition process is then conducted at temperatures between 230°C-425°C. During this higher temperature deposition process, the reducing gas is ramped up with time to increase the deposition rate of the refractory metal as the exothermic reducing reactions increasingly heat the contact areas. Other process and apparatus features enable higher bonding strength between the silicon surface and the formed barrier layer contacting the silicon surface and enable a higher purity content of the processing gases as well as improved diffusion of processing gases when injected into the processing chamber.
Patent EP-0468435-A2 (EP)
Inventor: WEISSBACH KLAUS
IPC: A61K6/00
Filed: 1991-07-23
Abstract: A dental ceramic material that can be fused with high bonding strength to dental prostheses including crowns, bridges, or prostheses parts made of titanium or titanium alloys is disclosed. The ceramic material requires the presence of B 2 0 3  at between 8 and 17 weight percent and this concentration range is directly responsible for the high bonding strength attained. In addition, the material fulfills the esthetic requirements necessary to achieve natural appearing tooth colors and stains in dental restoratives when bonded to titanium or titanium alloys. The ceramic material may be prepared as a dental powder or as a suspension or paste and if the suspension or paste contains polymerizable compounds the suspension or paste can be self-cured or cured by visible light.
Patent EP-0493720-A2 (EP)
Inventor: MENGES WILHELM
IPC: B03B9/06
Filed: 1991-12-12
Abstract: A method for reprocessing essentially used, generally double-sidedly plastic-coated drinks cartons is described. The drinks carton is first of all shredded by cutting tools in such a way that isolated two-dimensional pieces of approximately 5 cm in diameter are produced, which can be rinsed as far as possible from all sides during a subsequent decontaminating wash. The rinsing agent is drawn from the process and fed immediately to a biological purification. The preshredded and washed carton is then shredded in a second shredding step into small two-dimensional pieces of approximately 8 mm in diameter and subjected to disintegrating forces either simultaneously or subsequently, the plastic coating particles becoming detached from the fibrous material substrate. The thus disintegrated suspension is separated into a fibrous material fraction and a thermoplastic film fraction. After further cleaning and sorting steps, the thermoplastic material is dried and regranulated for reuse. The essentially long-fibred fibrous material component is ground and used with preference in the production of corrugated board raw paper. As a special measure, a certain proportion of finely ground thermoplastic material may be fixed on the fibrous material.
Patent EP-0450751-A2 (EP)
Title: Carry save adders for high speed interative division
Inventor: SHAH SALIM A
IPC: G06F7/535
Filed: 1991-02-20
Abstract: A special carry save adder includes means for performing multiple addition operations, common input means to said means for performing multiple addition operations, and muxing means for selecting the desired result of said multiple addition operations.
Patent EP-0444877-A2 (EP)
Inventor: SHUTO NAOKI C O INTELLECTUAL P
IPC: H01C7/12
Filed: 1991-02-26
Abstract: A resistor element 1 comprises a hollow cylindrical sintered body 2 and a pair of electrodes 3 formed on the upper and lower surfaces of the sintered body 2. The sintered body contains ferrite as a main constituent and contains 0.05 to 10% by volume of an insulator phase formed at the crystal grain boundary of the ferrite crystals. An insulating layer 5 is formed to cover the side surface of the sintered body 2. The sintered body 2 contains an oxide material selected from the group consisting of (a) 0.005 to 2.0% by weight of bismuth oxide calculated in terms of Bi₂O₃, (b) 0.01 to 3.0% by weight and 0.005 to 2.0% by weight of silicon oxide and aluminum oxide calculated in terms of SiO₂ and Al₂O₃ respectively, and (c) 0.01 to 3.5% by weight and 0.001 to 1.6% by weight of silicon oxide and calcium oxide calculated in terms of SiO₂ and CaO, respectively.