baber/WOPTO huggingface dataset:
Patent NO-172835-C (NO)
Inventor: NOAKES TIMOTHY JAMES
IPC: B05B5/08
Filed: 1987-02-18
Abstract: A process for the production of solid particles, characterised by the solidification in flight of an electrically charged spray of fluid droplets of narrow particle size distribution, and an apparatus for that process comprisinga sprayhead (1) with a channel (17) for the fluid communicating with an outlet;means for subjecting the fluid to an electrical field such that the fluid will move from the sprayhead (1) under the influence of the field to produce a spray of the fluid, the means including means for applying a first potential to the fluid;an electrode (11) mounted spaced from but adjacent to the sprayhead (1) with means to apply a second potential to that electrode; anda spray chamber (14), so positioned that in use the sprayhead (1) delivers the spray to the chamber interior, and provided with means to apply a third potential to the chamber, and so dimensioned and arranged that in use the majority of the spray droplets solidify before impinging on any surface of or within the chamber.
Patent NO-166862-C (NO)
Inventor: BLYTHIN DAVID JOHN
IPC: C07D215/38
Filed: 1987-03-27
Abstract: Esters, acetal ethers, thioethers and nitrogen substituted derivatives of certain bicyclic compounds are disclosed which are useful as anti-allergic, anti-inflammatory and/or cytoprotective agents and in treatment of hyperproliferative skin disease. Pharmaceutical compositions and methods of treatment employing such compounds are also disclosed.
Patent NO-170135-C (NO)
Inventor: OECKL SIEGFRIED
IPC: C07C2/28
Filed: 1987-07-23
Abstract: The invention relates to a new process for the preparation of strongly acid cation exchangers loaded with catalytically active metals by loading the cation exchangers with a solution of a salt of the catalytically active metal and reducing the cation exchangers loaded with metal ions, according to which the loading of the cation exchangers is carried out at temperatures from 50 DEG  to 120 DEG  C. and formic acid is used as the reducing agent; the invention also relates to the catalyst resins which can be obtained by the process.
Patent NO-171965-C (NO)
Inventor: KLINGBEIL HANS JUERGEN
IPC: B66B1/16
Filed: 1988-06-09
Abstract: An elevator system stopping control generates the difference between the actual speed value and a set point speed value on the transition from an unregulated travel phase to the regulated arrival or braking phase and prevents that difference from becoming effective so that the travel comfort is not impaired and the stopping accuracy remains assured. For this purpose, a multiplication factor is formed from the actual speed value and an associated nominal speed value by means of a divider during the travel phase before the onset point of braking and stored during the arrival phase in a memory. Stored in a travel curve memory are travel-dependent set point speed values, which values are multiplied by the factor by means of a multiplier and conducted as set point signals to a motor speed regulating circuit during the arrival phase.
Patent NO-176962-C (NO)
Inventor: OHNO KIYOTAKA
IPC: C07D/
Filed: 1990-10-26
Abstract: -prostaglandin-I2 derivs. of formula (I) are synthesised from dibromo dihydro-cyclopenta(b)benzofuran (II): (where R3 and R4 are H or methyl; R2 is methyl or ethyl) by (1) Prins reaction to give 1-(hydroxymethyl) -2-hydroxytetrahydro, -5,7-dibromo-cyclopenta(b)benzofuran; (2) Grignard reaction with alkyl 3-formyl propionate followed by removal of the 7-bromo atom by catalytic hydrogenation to give cpds. (III): (3) protection of the 2-hydroxyl with an alkanoyl group and oxidation to the 1-aldehyde; reaction with (MeO)2P(O)CH2COCHR4CH2C=CR2; (5) reduction of the carbonyl group and deprotection.
Patent CA-2009769-C (CA)
Title: Method and apparatus for producing a wood-like flame appearance from a fireplace-type gas burner
Inventor: KEWISH STEVEN A
IPC: F24C3/00
Filed: 1990-02-09
Granted: 1993-12-14
Abstract: ABSTRACT  An  apparatus  for  coloring  gas flames  in  gas-burning fireplaces so as to give the appearance of a wood-burning fireplace comprises a ceramic tube having a coating which causes colorization of gas flames when the coated tube is placed  in  the  secondary  reaction  zone  of  a  gas  flame.          Principle  coating  ingredients  include  sodium carbonate, aluminum  oxide,  pulverized  soda  lime  glass,  and  sodium silicate.  The coating is baked onto the ceramic tube, and, when located in the secondary reaction zone of a flame, will provide nearly constant natural color to a gas flame for periods in excess of 1000 hours.
Patent CA-2014011-C (CA)
Inventor: FREDRIKSEN NILS
IPC: A01B51/00
Filed: 1990-04-06
Granted: 1993-09-28
Abstract: Agricultural Carrier Vehicle ABSTRACT           The present invention relates to an agricultural carrier vehicle combining the features of a harvesting unit that can be coupled to the front end of the carrier vehicle, a saddle unit that can be mounted onto the vehicle, a driver's cab that can be transferred to different positions and a conveyor connecting the harvesting unit and the saddle unit.  Through this inventive com-bination it should be possible to quickly and reliably convert the vehicle for its various tasks while maintaining for the driver visibility conditions that are always constant.
Patent CA-2015740-C (CA)
Title: Hierarchical constrained automatic learning network for character recognition
Inventor: DENKER JOHN S
IPC: G06V30/10
Filed: 1990-04-30
Granted: 1996-01-16
Abstract: Highly accurate, reliable optical character recognition is afforded by a layered network having several layers of constrained feature detection wherein each layer of constrained feature detection includes a plurality of constrained feature maps and a corresponding plurality of feature reduction maps. Each feature reduction map is connected to only one constrained feature map in the same layer for undersampling that constrained feature map. Units in each constrained feature map of the first constrained feature detection layer respond as a function of a corresponding kernel and of different portions of the pixel image of the character captured in a receptive field associated with the unit. Units in each feature map of the second constrained feature detection layer respond as a function of a corresponding kernel and of different portions of an individual feature reduction map or a combination of several feature reduction maps in the first constrained feature detection layer as captured in a receptive field of the unit. The feature reduction maps of the second constrained feature detection layer are fully connected to each unit in the final character classification layer. Kernels are automatically learned by constrained back propagation during network initialization or training.
Patent CA-2020459-C (CA)
Title: Electrical fault protective device
Inventor: VEVERKA EDWARD F
IPC: H01H85/43
Filed: 1990-07-04
Granted: 1994-05-24
Abstract: An electrically conductive expulsion fuse manifold and bus for connecting and mounting a plurality of fuses which upon operation expel gases into the manifold is shown and described.  The expulsion fuses are attached to the manifold by means of clamps, flanges, and/or threaded connections.  Each expulsion fuse includes an expendable cap which may be blown off into the manifold under high magnitude capacitor discharge currents and/or fault currents for safe double-vented fuse operation.  The manifold may also be non-conductive where electrical isolation is required and where a separate electrically conductive bus is employed.
Patent CA-2022381-C (CA)
Title: Process for preparing n-alkyl-substituted aminophenols
Inventor: MAKI HIROSHI
IPC: C07B61/00
Filed: 1990-07-31
Granted: 2003-03-11
Abstract: A process for preparing an N-alkyl-substituted aminophenol is disclosed, comprising continuously feeding an aldehyde or a ketone to a reaction system containing an organic solvent, a catalyst for reduction, hydrogen, and an aminophenol to conduct a reductive alkylation reaction, wherein said reductive alkylation reaction is carried out while continuously adding an organic carboxylic acid into the reaction system.      The process attains a high yield even when the catalyst is repeatedly used and does not cause corrosion of equipment.
Patent CA-2022506-C (CA)
Title: A process for preparing non-extruded stabilized olefin polymers
Inventor: CASELLI GIANCARLO
IPC: C08K5/524
Filed: 1990-08-01
Granted: 2002-01-22
Abstract: Disclosed is a process for preparing nonextruded stabilized olefin particles. The process includes the step of polymerizing an olefin monomer or olefin monomers in the presence of a Ziegler-Natta catalyst, thus obtaining olefin polymer particles having a spheroidal shape, and the step of depositing a stabilizer mixture on the polymer particles. The stabilizer mixture is a molten mixture or a mixture in which at least the stabilizer (A) is in the liquid state, without containing any solvent, and comprising the following stabilizers (percent by weight with respect to the weight of the polymer particles): (A) from 0.020 to 0.15% of one or more organic phosphates or phosphonites or mixtures thereof which are liquid at room temperature or have a melting point below 100° C;. (B) from 0.025% to 0.2% of one or more phenolic antioxidants with melting points from 45° to 130° C; and, optionally, one or more of the following additional components: (C) from 0.05% to 0.5% of one or more thioethers or organic polysulfides or mixtures thereof; (D) from 0.10 to 1.0% of one or more light stabilizers which are liquid at room temperature or have a melting point below 150° C, selected from the group consisting of hindered amine light stabilizers, benzophenone and benzotriazole derivatives; (E) one or more diluents selected from the group consisting of paraffins and cycloparaffins which are liquid at room temperature or have a melting point below 110° C, epoxidized soy bean or linseed oil, silicone oils and olefin oligomers, in an amount not greater than 0.3%.
Patent CA-2023281-C (CA)
Title: Method for gravel packing wells
Inventor: JONES LLOYD GARNER
IPC: E21B43/04
Filed: 1990-08-15
Granted: 1997-10-21
Abstract: A method for gravel packing a well penetrating an unconsolidated or poorly consolidated subterranean oil or gas reservoir. The well employs a borehole casing with perforation tunnels for fluid communication between the borehole casing anda substantial portion of the reservoir. A sand screen is located inside the wellcasing and in juxtaposition with the perforation tunnels forming an annulus between the borehole casing and the sand screen. One or more conduits are positioned coaxially adjacent the exterior of the sand screen with openings to provide fluid communication between the conduit and a substantial portion of theannulus between the borehole casing and the sand screen. A slurry of gravel is injected down through the annulus between the borehole casing and the sand screen until the annulus is filled with gravel. If injection of the slurry of gravel forms a gravel bridge in any portion of the annulus being packed thereby plugging the annulus between the casing and the sand screen, the slurry of gravel will continue to flow down the conduit and into the annulus below the gravel bridge thereby completely packing the annulus between the sand screen and the borehole casing. The oil or gas in the reservoir is then produced through the gravel packed borehole casing and the sand screen. If desired, the slurry of gravel may be injected down the well and up the conduit and annulus to accomplish complete packing. The method is also applicable to placing gravel packs in an open-hole wellbore adjacent to a substantial portion of an unconsolidated or poorly consolidated subterranean oil or gas reservoir.
Patent CA-2025729-C (CA)
Inventor: SCHMIDT HANNS-LUDWIG
IPC: G01N30/06
Filed: 1990-09-19
Granted: 2001-05-08
Abstract: The invention comprises an on-line mass spectrometric method and apparatus for the determination of the isotopic composition of at least oxygen, hydrogen and nitrogen in a compound or mixture of compounds. A mixture contained in syringe 6 is injected through injector 7 on a chromatographic column 1. Compounds eluting from the column 1 pass into a catalytic reactor 14 (typically a platinum\rhodium capillary tube containing elemental carbon and maintained at 1200°C) and are decomposed to produce carbon monoxide, molecular nitrogen, and molecular hydrogen. These gases are analyzed by an isotope-ratio mass spectrometer 4 so that the isotopic composition of the oxygen, nitrogen and hydrogen comprised in the original compound can be determined. A second chromatographic column 24 may be provided to separate carbon monoxide and nitrogen before they are passed into the spectrometer 4, thereby allowing a low resolution spectrometer to be used for the analysis of both gases at m/e 28 daltons.
Patent CA-2026905-C (CA)
Title: Pipe repair or jointing collar
Inventor: JARDINE ROBERT WILLIAM
IPC: F16L55/172
Filed: 1990-10-04
Granted: 1999-09-21
Abstract: A pipe repair or jointing collar comprising a pair of rigid arcuate casing members (10) which may be drawn together around a damaged pipe or a pair of pipe ends with the interposition of one or more elastomeric arcuate seals (13) and wedges (17) located between the casing members and the seals and adapted to slide inwardly and generally tangentially to force the seals radially inwards to ensure sealing engagement with the pipe or pipe ends, mutually abutting longitudinal resilient sealing strips (16) projecting, at least in part, from opposed faces of the wedges (17) in a manner such that in at least one region of each pair one of the sealing strips is substantially flush with its associated face whilst the other projects from it so that during assembly the projecting strip may ride laterally onto the flush strip to ensure lateral alignment of the casing members.
Patent CA-2032711-C (CA)
Title: Boiler
Inventor: COOKE GEORGE
IPC: F22B21/24
Filed: 1990-12-19
Granted: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE         A highly efficient boiler is made up of a housing containing upper and lower left and right water manifolds.  Tubes connect the left manifolds and other tubes the right manifolds.  The tubes are bent toward one another to  form a plurality of  superposed chambers through which combustion gases must successively flow, from front to back in one chamber and from back to front within the next.  Baffles may be provided in each chamber to cause the gas to traverse a sinuous path from left to right and right to left within each chamber.  Adjustment of the baffles can be effected during operation to keep the combustion gas exit pressure or temperature or flow rate constant notwithstanding changes in the liquid flow rate through the tubes or the rate of combustion of fuel in the lowermost chamber.
Patent CA-2033482-C (CA)
Title: Electronically controlled marking
Inventor: GRATTAN MICHAEL A
IPC: B41J2/11
Filed: 1990-12-31
Granted: 1996-03-26
Abstract: An electronically controlled marking system is provided to impart an ink spot to a stationary or moving target.   The system includes an electronic control module connected to a high-pressure gas valve to control the passage of high-pressure gas to an ink spot marker, the electronic control module also being connected to a low-pressure gas valve to control the passage of low-pressure gas to the ink spot marker. Following the  initiation of  an  ink spot marking cycle,  low-pressure gas is applied to atomize ink within the ink spot marker;  high-pressure gas  is applied to force open a valve within the ink spot marker, thereby allowing ink to be ejected by the low-pressure gas toward the target; the high-pressure gas is removed to terminate the ejection of ink from the output nozzle, the low-pressure gas still being applied to force any remaining ink from the output nozzle;  and  the  low-pressure  gas  is  removed. Provision is also made for pulsing the high-pressure gas applied to the ink spot marker during the period that  ink is being ejected to provide pulsed  ink ejection.
Patent CA-2037332-C (CA)
Inventor: MURPHY KATHERINE A
IPC: H01M2/04
Filed: 1991-02-28
Granted: 2001-11-20
Abstract: A cover for a galvanic cell having a reverse curved peripheral edge and a substantially centrally disposed upstanding wall bounding an aperture. A sealing member is positioned below the cover and has a tubular hub which projects through the aperture in the cover and a skirt that electrically insulates the edge of the cover. An electrically conductive fastener is positioned in the tubular hub on the sealing member which tends to cause the edge of the tubular hub to roll or "mushroom" when the electrically conductive fastener is peeved or clinched in place. The rolled tubular hub tightly locks the fastener and the cover together while the edge of the cover presses against the inner wall of the container holding the components of the galvanic cell. The pressure tends to slightly bow the cover enabling it to stay in a tightly sealed condition under both physical and thermal stress. A galvanic cell incorporating the cover is also disclosed.
Patent CA-2038432-C (CA)
Inventor: KAMIMURA TADASHI
IPC: B22F1/148
Filed: 1991-03-18
Granted: 1995-05-02
Abstract: A sintered composite comprises capsule-like powder composite particles composed of core particles and an elec-trically conductive covering material which covers said core particles.  The capsule-like powder composite particles are sintered in a sintering mold while pulsed voltages are being applied to the powder composite particles.
Patent CA-2044076-C (CA)
Title: Process and apparatus for forming nonwovens within a forming chamber
Inventor: DICKENSON F LEE
IPC: D04H1/72
Filed: 1991-06-07
Granted: 2001-07-31
Abstract: The present invention relates to a multicomponent fibrous nonwoven structure and the process and apparatus for producing the same. More specifically, the present invention relates to a process for forming nonwoven materials using a forming chamber in conjunction with multiple fiber sources and a forming surface to create multicomponent nonwoven materials with varying features.      The materials so produced are suitable for use in a wide variety of applications including personal care products such as diapers, feminine pads and adult incontinence products.
Patent CA-2047486-C (CA)
Title: Semiconductor device and method for manufacturing the same
Inventor: KATAYAMA SHIGERU
IPC: H01L23/00
Filed: 1991-07-19
Granted: 2002-03-05
Abstract: This invention relates to a package construction of a semiconductor device and provides a hollow package for holding a semiconductor device in which a vapour-impermeable moistureproof plate is embedded in a bottom surface thereof or at a position inwardly of the bottom surface to provide increased moisture impermeability of the package.
Patent CA-2048459-C (CA)
Title: Method and circuit arrangement for determining the quality of virtual connections extending via atm switching equipment
Inventor: SCHEFTS HORST
IPC: H04L12/56
Filed: 1991-08-06
Granted: 2000-04-25
Abstract: For determining the quality of virtual connections between input lines and output fines of an ATM switching equipment, the plurality of accepted and output message cells is separately acquired in a call-associated manner in the ATM  switching equipment on the basis of cell headers of the message cells accepted via the input lines and, respectively, output to the output lines. in response to the cleardown of a respective virtual connection, the loss rate of the message cells is then calculated as a measure for the quality of the respective virtual connection from the previously, separately-acquired plurality of accepted and output message cells.
Patent CA-2048754-C (CA)
Title: Touch screen user interface with expanding touch locations for a reprographic machine
Inventor: HUBE RANDALL R
IPC: G06F3/0482
Filed: 1991-08-08
Granted: 1996-02-06
Abstract: A touch sensitive user interface of the type having a display screen for displaying an image; control logic responsive to the touch sensitive user interface for determining the contact position of a probe, such as a finger, thereon; a display menu of operating features, represented by a plurality of images on the display screen, so that a user may make touch selections on the images corresponding to operating features desired; a system controller for identifying a contact zone of a predetermined size with respect to the display screen, the control logic actuating the feature within the system represented by a displayed image in response to user touch within a corresponding contact zone, the system controller enlarging the contact zone of a selected feature upon selection thereof, to a size accommodating a probe tip, without overlapping on adjacent areas and upon completion of option selection, returning the expanded contact areas to said predetermined size.
Patent CA-2051217-C (CA)
Title: Process for the chemical synthesis of oligonucleotides
Inventor: PFLEIDERER WOLFGANG
IPC: C07H19/16
Filed: 1991-09-12
Granted: 2003-12-09
Abstract: A process for the chemical synthesis of oligonucleotides Use of a dansylethoxycarbonyl group as base-labile 5'-hydroxyl protective group in the chemical synthesis of DNA and RNA and suitable synthetic processes. The ease of detection of the dansyl protective group and the ease of elimination from the sugar residue of the nucleotide without side reactions make oligonucleotide synthesis possible with high yields in very small quan-tities.
Patent CA-2052114-C (CA)
Title: Insole assemblies for adjustable girth shoes
Inventor: ROSEN HENRI E
IPC: A43B13/38
Filed: 1991-09-24
Granted: 1999-07-06
Abstract: Footwear having a substantially concealed means for girth adjustment is described. The girth adjustment means is provided by shoe insole assemblies wherein the contours and thicknesses of the side edges vary relative to those of the longitudinally central portions of the insole assemblies which remain substantially constant.
Patent CA-2056291-C (CA)
Inventor: HASTINGS EVERETT
IPC: B60R21/2165
Filed: 1991-11-27
Granted: 1997-10-14
Abstract: A vehicle steering wheel has a decorative panel concealing a storage compartment for an inflatable air bag.  The panel has a covering which comprises a backing plate having a U-shaped cut line framing the storage compartment and defining a cover door having a hinge line connecting the ends of the cut line U.  An inner layer of foam is interposed between the backing plate and an outer skin layer.          The skin has a peripheral groove outlining the door and comprises a hinge section overlying the hinge line and a weakened tear seam line overlying the cut line.  The groove is cut through at the bottom along the tear seam line but not along the hinge section.          Inflation of the air bag will force the door outwardly, fracturing the foam layer along the tear seam line to swing the door away from the opening about the hinge section to enable deployment of the air bag outwardly of the panel.  The cuts in the panel layers can be made before or after a molding process.  Alternate constructions creating the tear seam line are disclosed.
Patent CA-2069329-C (CA)
Inventor: WOLFE JESSE D
IPC: C23C14/34
Filed: 1990-11-07
Granted: 2001-01-09
Abstract: Selon un procédé de déposition de minces pellicules de composés à base de silicium, notamment du dioxyde de silicium, par pulvérisation réactive cathodique, on utilise un magnétron cylindrique rotatif (20) entraîné par un potentiel de courant direct (30). On obtient ainsi une technique de formation d'une pellicule uniforme sur des substrats (12) de grandes dimensions à des vitesses élevées de déposition. On élimine la formation d'arcs qui accompagne normalement la pulvérisation de revêtements diélectriques difficiles tels que les oxydes de silicium.