baber/WOPTO huggingface dataset:
Patent CA-2226335-A1 (CA)
Inventor: BATTAGLIA FRANK B
IPC: C23C14/14
Filed: 1996-05-08
Abstract: A coated cutting tool, comprising a substrate which has a roughened surface that presents a surface roughness of between 15 microinches R a and 125 microinches R a. A coating is applied to the roughened surface of the substrate by physical vapor deposition.     A coated cutting tool having a low cobalt substrate and experiencing long tool life is also discussed.
Patent CA-2226613-A1 (CA)
Title: Surge protection system including proper operation indicator
Inventor: BANTING JOHN F
IPC: H02H9/04
Filed: 1998-01-09
Abstract: A meter extender surge suppression system that fits between a utility meter and a meter box is provided to protect downstream equipment from surges on the electric power lines. The system includes an operation indicator light that reliably informs the operator whether the surge arresters are fully operational in all ambient light conditions. The invention includes a two-piece housing. All circuit components are mounted on portion of the housing to simplify manufacture and testing.
Patent CA-2229684-A1 (CA)
Title: Device for identifying the switched position in electrical switch gear
Inventor: SUHR MICHAEL
IPC: H01H11/00
Filed: 1998-02-16
Abstract: In a device for identifying the switched position of electrical switch gear, in which the switched position is identified by the interaction of a reflective element (15) that is connected to the kinematic train of the switch gear with a beam of light (13), the present invention makes provision such that the reflective element (15) is formed as a reflective surface (10, 11, 12) that is produced by stamping the surface of a metallic component (4) of the switch gear.
Patent CA-2231215-A1 (CA)
Title: Concentrated built liquid detergents containing a dye-transfer additives
Inventor: GOPALKRISHNAN SRIDHAR
IPC: C11D3/37
Filed: 1998-04-03
Abstract: The present invention relates to the formulation of stable, aqueous, concentrated built liquid detergents that contain a dye-transfer inhibiting additive. The invention also relates to a method of incorporating a dye-transfer inhibiting additive to a liquid detergent composition.
Patent CA-2231345-A1 (CA)
Inventor: BENOIT LOUIS
IPC: A63C17/06
Filed: 1996-07-31
Abstract: The invention relates to an in-line roller skate (1) which comprises a means for maintaining the wheels (10, 11, 12, 13) at constant distance from each other. The skate (1) is characterized in that the means (8) for maintaining the wheels (10, 11, 12, 13) at constant distance is movable particularly with respect to a sole (4) and an upper (3) of a shoe (2) of the skate (1).
Patent CA-2232607-A1 (CA)
Title: Process for the production of azomethines and alpha-haloacetanilides
Inventor: JAVDANI KAMBIZ
IPC: C07C233/18
Filed: 1996-09-19
Abstract: Aromatic azomethines are produced by continuous reaction of an aniline with a formaldehyde source, with continuous evaporation to remove residual water of reaction. The azomethine product may be further reacted, either continuously or in batch process, with a haloacetylating agent, and, additionally, with an aliphatic alcohol.
Patent CA-2235065-A1 (CA)
Title: Process for preparing 1,3-propanediol
Inventor: WEIDER PAUL RICHARD
IPC: C07C29/16
Filed: 1996-10-28
Abstract: A process for preparing 1,3-propanediol comprises the steps of: (a) reacting a cobalt salt selected from at least one of cobalt hydroxide, cobalt (II, 1II) oxide and cobalt carbonate with synthesis gas in an essentially non-water-miscible liquid medium under conditions effective to produce a cobalt carbonyl reaction product comprising at least one active cobalt carbonyl hydroformylation catalyst species; (b) contacting ethylene oxide with synthesis gas in an essentially non-water-miscible liquid medium in the presence of a catalytic amount of the cobalt carbonyl reaction product mixture and an effective amount of a catalyst promoter under reaction conditions effective to produce an intermediate product mixture comprising less than 15 wt.% 3-hydroxypropanal;  (c) adding an aqueous liquid to said intermediate product mixture and extracting into said aqueous liquid a major portion of the 3-hydroxypropanal so as to provide an aqueous phase comprising 3-hydroxypropanal in greater concentration than the concentration of 3-hydroxypropanal in the intermediate product mixture, and an organic phase comprising a major portion of the cobalt carbonyl; (d) separating the aqueous phase from the organic phase; (e) returning at least a major portion of the organic phase to the process of step (b); (f) contacting the aqueous phase comprising 3-hydroxypropanal with hydrogen in the presence of a hydrogenation catalyst under hydrogenation conditions to provide a hydrogenation product mixture comprising 1,3-propanediol; and (g) recovering 1,3-propanediol from the hydrogenation product mixture.
Patent CA-2237802-A1 (CA)
Title: Target construction
Inventor: BREJCHA ROBERT J
IPC: F41J5/052
Filed: 1998-05-15
Abstract: A target for use with darts, for example, has a base on which a target frame is secured, the frame having a plurality of spaces within each of which is a segment that is movable toward the base when it is struck by a thrown dart.  Corresponding ones of the segments have cavities therein for the accommodation of inserts which are movable independently of the segment toward the target base when such inserts are struck by a thrown dart.  The inserts are so arranged that, together, they form an annulus or ring of individually displaceable components.  Interposed between the target base and the target segments and inserts are switches and a resilient biasing pad which bias the segments to an initial, at rest position.
Patent CA-2238014-A1 (CA)
Title: Inhibitory and non-inhibitory antigen binding polypeptides against human p450 enzymes
Inventor: GELBOIN HARRY V
IPC: C12N9/02
Filed: 1996-11-15
Abstract: Antigen binding polypeptides that specifically bind human cytochrome P450 3A3, 3A4, and 3A5 and that specifically inhibit the enzyme activity of human cytochrome P450 3A3, 3A4, and 3A5 are described.  Antigen binding polypeptides that specifically bind to human cytochrome P450 3A3 and 3A4 are also described. Antigen binding polypeptides which specifically bind to human cytochrome P450 2E1 and which specifically inhibit the enzyme activity of human cytochrome P450 2E1 are described. Antigen binding polypeptides which specifically bind to human cytochrome P450 2E1 are also described.  Methods of determining the contribution of human cytochrome P450s to the metabolism of compounds, using the antigen binding polypeptides of the invention, are also described.
Patent CA-2238863-A1 (CA)
Inventor: STRAUSS CARL RICHARD
IPC: D01F9/08
Filed: 1996-12-04
Abstract: Mineral fibers are provided with a phosphorus-containing coating to impart high-temperature resistance without substantially affecting mechanical performance. Preferred mineral-fiber compositions according to the invention with relatively high levels of SiO2 and low levels of Al2O3 and Fe2O3 compositions may advantageously be used for insulation. Such compositions have high-temperature resistance and high biosolubility, yet have properties which allow current processes to fabricate them into insulation. Preferably, the mineral fibers have a KI value 40.
Patent CA-2239958-A1 (CA)
Title: Ventilateur de cheminee pour reduire l'accumulation de suie et de creosote et eviter les refoulements
Inventor: LOISELLE ANDRE
IPC: F23L17/00
Filed: 1998-07-10
Abstract: Dans les appareils servant à aider la tire des cheminées,on sait que les capuchons sont sensés aider à la circulation d'air, mais la ventilation n'est pas assez forte pour aider à évacuer la suie et la créosote nuisant à la propreté de la cheminée et empêchant un bon ramonage parce que l'espace n'est souvent pas assez grand pour passer une brosse de la bonne dimension pour nettoyer complètement les parois de la cheminée et souvent les ramoneurs ne les enlèvent pas,risquant de les briser.Après un temps ces appareils sont collés. Dans la présente invention, l'appareil tout en acier maléable et traité anti-rouille est muni d'un éventail ou plus et d'une tête actionnée par le vent (éolienne) pour créer un mouvement rotatif continu au besoin et controlé pour aider légèrement à l'évacuation de la suie et la créosote d'autant plus qu'il y a un espace suffisant entra le couvert et la cheminée pour les laisser sortir librement.L'appareil peut comporter un support ajustable aux dimensions des cheminées rondes, carrées ou rectangulaires et se distingue des autres parce qu'il a la particuliarité d'être utile en toutes saisons créant une circulation d'air légèrement forcée,évitant la formation de champignons et d'acide causés par le mélange d'humidité et de créosote qui détériorent les cheminées et réduira les zones de haute-pressions (front-froid) par son mouvement. Il peut s'adapter à tous genres de pôles à bois ou fournaises à l'huile, gardant leurs chambres de combustion plus propres,économisant ainsi de l'énergie et réduisant les risques d'incendies dans les maisons résidentielles ou industries pour la sécurité publique.
Patent CA-2242176-A1 (CA)
Title: Solid polymer fuel cell system and method for humidifying and adjusting the temperature of a reactant stream
Inventor: NIGSCH HARALD ANTON
IPC: H01M8/04
Filed: 1998-06-30
Abstract: Reactant gas supply streams for solid polymer fuel cells may be heated and humidified using heat generated by the fuel cell and water vapor from the fuel cell exhaust. The heat and water vapor in the oxidant exhaust stream are sufficient to heat and humidify a reactant gas supply stream, preferably the oxidant supply stream. The heating and humidifying can be accomplished by flowing a reactant gas supply stream and a fuel cell exhaust gas stream on opposite sides of a water permeable membrane in a combined heat and humidity exchange apparatus. The method and apparatus are particularly suitable for use with air-cooled fuel cell systems and systems which employ near ambient pressure air as the oxidant gas supply.
Patent CA-2243837-A1 (CA)
Title: Method and apparatus for regulatory control of production and temperature in a mixed refrigerant liquefied natural gas facility
Inventor: BROCHU PHILIP A
IPC: C10G5/06
Filed: 1998-07-17
Abstract: A control system for a process of liquefied natural gas production (LNG) from natural gas using a heat exchanger and a closed loop refrigeration cycle employs independent, direct control of both production and temperature by adjusting refrigeration to match a set production. The control system sets and controls LNG production at a required production value, and independently controls LNG temperature by adjusting the refrigeration provided to the natural gas stream. One exemplary method employs compressor speed, for example? as a key manipulated variable (MV) to achieve fast and stable LNG temperature regulation. Other compressor variables rather than speed may be key MVs, depending on the type of MR compressors employed, and may be the guidevane angle in a centrifugal compressor or the stator blade angle in an axial compressor. The second exemplary method employs a ratio of total recirculating refrigerant flow to LNG flow as the key manipulated variable to effectively control the LNG temperature.
Patent CA-2246898-A1 (CA)
Title: Rotary cutter
Inventor: TAKESHITA TAKAHIRO
IPC: B26B25/00
Filed: 1998-09-09
Abstract: A rotary cutter has a handle, a rotary blade having a cutting edge, a protective member for covering the blade, a lock mechanism for locking the protective member, and a brake mechanism for applying rotational resistance to the blade.      The blade is rotatably supported by the handle. The protective member moves between a first position, in which the protective member is held to prevent exposure of the cutting edge of the blade, and a second position, in which the protective member permits exposure of the edge of the blade. The lock mechanism moves between a lock position, in which the protective member is positioned in the first position, and an unlock position, in which the protective member is positioned in the second position. The control element is common to both the lock mechanism and the brake mechanism for operating both the lock mechanism and the brake mechanism.
Patent CA-2247290-A1 (CA)
Inventor: SPAULDING LINCOLN BROOKS
IPC: B65D27/04
Filed: 1997-12-23
Abstract: The invention provides a two way mailer (10) formed of a single blank of sheet material including first and second sections (12, 14), and a perforated line (16) for separably interconnecting the first and second sections (12, 14). The first section (12) includes bottom, top and side edges (22, 20, 24), and a first fold line (28) spaced inwardly from and parallel with the bottom edge (22). The first fold line (28) defines front and rear portions (32, 34) of the first section (12). The second section (14) includes rear and return panels (42, 58), each including bottom, top and side edges (46, 44, 48; 62, 60, 64). The bottom edges (46, 62) of the rear and return panels (42, 58) coincidently define a second fold line (70) parallel with the first perforated line (16) and about which the return panel (58) may be folded onto the rear panel (42). The two way mailer (10) also provides that the thus folded return panel (58) may be adhered to the rear panel (42) to thereby form a return envelope, and that the thus formed return envelope, together with the rear portion (34) of the first section (12), is foldable about the first fold line (28) onto the front portion (32) of the first section (12) and adhered thereto. The return envelope may then be separated from the first section (12) along the first perforated line (16).
Patent CA-2247618-A1 (CA)
Title: Multiple antenna communication system and method thereof
Inventor: HOCHWALD BERTRAND M
IPC: H04L1/00
Filed: 1998-09-17
Abstract: A communications system achieves high bit rates over an actual communications channel between M transmitter antennas of a first unit and N receiver antennas of a second unit, where M or N > 1, by creating virtual sub-channels from the actual communications channel. The multiple antenna system creates the virtual sub-channels from the actual communications channel by using propagationinformation characterizing the actual communications channel at the first and second units. For transmissions from the first unit to the second unit, the first unit sends a virtual transmitted signal over at least a subset of the virtual sub-channels using at least a portion of the propagation information. The second unit retrieves a corresponding virtual received signal from the same set of virtual sub-channels using at least another portion of said propagation information.
Patent CA-2250455-A1 (CA)
Title: Granular-type modified polytetrafluoroethylene dispersions and fused articles prepared therefrom
Inventor: CLOUGH NORMAN ERNEST
IPC: C08J9/24
Filed: 1997-04-01
Abstract: An aqueous dispersion of modified granular PTFE particles is sprayed or cast to form a sheet. The sheet is then dried and the modified granular particles fused together to form an open network of fused interconnected particles that define a tortuous network of voids through the sheet. It has been found that when the modified granular-type PTFE aqueous dispersions are employed, the resulting fused sheets are stronger than when the usual unmodified PTFE homopolymer of the granular-type is used.
Patent CA-2251709-A1 (CA)
Title: Cathode materials for secondary (rechargeable) lithium batteries
Inventor: MASQUELIER CHRISTIAN
IPC: H01M4/58
Filed: 1997-04-23
Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3- as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
Patent CA-2252415-A1 (CA)
Title: Method and apparatus for controlling and optimizing output of an x-ray source
Inventor: KHUTORYANSKY OSCAR
IPC: A61B6/02
Filed: 1997-04-14
Abstract: A method for controlling output of an X-ray source to optimize X-ray energy arriving at an associated X-ray receptor during linear tomographic examination. The method comprises the steps of selecting tomographic sweep parameters (501, 502), predicting a set of X-ray source control parameters based, at least in part, upon the selected tomographic sweep parameters (503, 504, 505), and controlling X-ray source output in accordance with the set of X-ray source control parameters to optimize X-ray energy arriving at the associated X-ray receptor (508). Apparatus for controlling output of an X-ray source is also disclosed.
Patent CA-2253622-A1 (CA)
Title: Cationic catalysts for epoxy resin formulations in pultrusion molding systems
Inventor: KULTZOW ROBERT JOHN
IPC: B29C70/52
Filed: 1998-11-10
Abstract: The present invention relates to a pultrusion molding system comprising a) a pultrusion die and b) a feeding means for introducing a moldable composite material into the pultrusion die. The moldable composite material has been impregnated with a heat-curable resin formulation containing a cationic curing agent for epoxy resins. The cationic curing agent is an aromatic sulfonium salt. The present invention also relates to a process for making a composite article comprising a) feeding a moldable composite material through a pultrusion die, wherein the moldable composite material has been impregnated with a heat-curable resin formulation containing a cationic curing agent for epoxy resins. The heat curable resin formulation is preferably a mixture of at least one multifunctional epoxy resin and a cationic curing catalyst for the epoxy resin.
Patent CA-2254257-A1 (CA)
Inventor: VAN PHAN DEAN
IPC: D21H19/10
Filed: 1993-08-12
Abstract: Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with certain nonionic softeners are disclosed. These nonionic softeners are biodegradable and comprise sorbitan esters, ethoxylated/propoxylated versions of these sorbitan esters, or mixtures thereof. The softener is typically applied from an aqueous dispersion or solution thereof to at least one surface of the dry tissue paper web.
Patent CA-2254382-A1 (CA)
Title: Post tensioning system for prefabricated building panel
Inventor: SMITH RODNEY I
IPC: E04C5/12
Filed: 1998-11-23
Abstract: An improved post tensioning system for prefabricated building panels in which a concentric uniform radial compression is maintained in the slab. A post tensioning cable is placed in the concrete slab to form a perimeter loop starting from one corner of the slab to a point where the cable entered the slab and at a point turning 90° to follow that portion of the cable in the periphery to a point midway up the Y axis and then turning 90° across the X axis to bisect the slab and cross the opposite parallel portion of the cable to exit out the adjacent side of the slab. This creates a cable pattern with no less than 2.5 parallel cables in any direction.
Patent CA-2255315-A1 (CA)
Title: Flexible polyester foams
Inventor: SEVERINI TONINO
IPC: C08L67/02
Filed: 1998-12-10
Abstract: A foamed cellular material which can be obtained from foamed aromatic polyester resins with a bulk density of 50 to 700 kg/m3 by heating in vacuum to temperatures which are higher than the Tg of the material and lower than its melting point. The foamed material, generally in the form of a sheet or panel, has high-level characteristics in terms of flexibility and dimensional thermostability depending on the degree of crystallinity after the vacuum treatment
Patent CA-2262531-A1 (CA)
Title: Assessment of cervical cells
Inventor: MASON ROBERT JAMES
IPC: C12N15/02
Filed: 1997-08-05
Abstract: A method of determining abnormality in a tissue sample containing cells of the cervix, the method comprising determining binding of specific binding substances to the sample and comparing the binding with the pattern of binding of said specific binding substances to a normal cervical cell sample. The specific binding substances may be antibodies. Hybridomas which produce suitable antibodies have been deposited at the European Collection of Animal Cell Cultures (ECACC), Centre for Applied Microbiology & Research, Salisbury, Wiltshire SP4 0JG, United Kingdom on 6 February 1995 under the accession numbers ECACC 95020718, 95020716, 95020720, 95020717 and 95020719.
Patent CA-2262545-A1 (CA)
Title: Magnetic disk cartridge
Inventor: WATANABE SEIICHI
IPC: G11B23/04
Filed: 1996-08-08
Abstract: In order to rotate a magnetic disk (3) supported on a discoid center core (31) in a cassette shell (2), the core (31) is attracted to the magnet (14) for connection of a turntable (12). A magnetic head inserting hole (6) is provided in a side face (23) of the shell (2) and a center hole (31a) into which a centering pin (13) of the turntable (12) is inserted is provided at the center of the core (31). An annular attracted section (31b) the height of which is different in steps from the height of the hole (31a) is provided on the periphery of the core (31). The attracted section (31b) is attracted in a face-contacting state to the magnet (14) annularly provided on the peripheral side of the turntable (12). When the magnetic disk rotates at a high speed in the cassette shell (2), therefore, the attraction of the center core (31) by the magnet (14) is strengthened, the magnetic disk does not slip nor vibrate in case of an unbalanced load.
Patent CA-2263372-A1 (CA)
Inventor: DE HAAN ANDRE
IPC: G01N27/12
Filed: 1997-08-19
Abstract: The invention concerns a method for manufacturing an element formed with semiconductor(s) for fire detection which consists in applying by evaporation under vacuum on an insulating substrate a phtalocyanine film, which is solidified so as to obtain on the surface of the semiconductor acceptors and donors in such proportion as to enable the detection of a fire with or without flames.
Patent CA-2265482-A1 (CA)
Title: Laryngeal airway device
Inventor: ARNOLD RANDALL C
IPC: A61B1/267
Filed: 1997-09-24
Abstract: A laryngeal airway device includes an air tube with proximal and distal ends, and a sealing member attached to the distal end of the air tube. The sealing member includes an anterior surface adapted to seat in the throat, against the hyoid bone, and to stretch the laryngeal inlet. A hole extends through the anterior surface and the sealing member and communicates through an air passage with the distal end of the air tube. When the sealing member is seated in the throat, the hole is contained within the rim of the stretched laryngeal inlet, with which the anterior surface forms a seal that surrounds the hole. Airway patency is thereby ensured.
Patent CA-2266016-A1 (CA)
Title: Tricyclic inhibitors of farnesyl protein transferase
Inventor: AFONSO ADRIANO
IPC: A61P35/00
Filed: 1997-09-11
Abstract: Novel compounds of formula (1.0) are disclosed. Compounds of formula (1.0) are represented by the compounds of formulas (1.4) or (1.5) wherein R1, R3 and R4 are each independently selected from halo. Also disclosed are methods of inhibiting farnesyl protein transferase and the growth of abnormal cells, such as tumor cells.
Patent CA-2266045-A1 (CA)
Inventor: ADLER JONATHAN
IPC: A61B17/88
Filed: 1999-04-01
Abstract: A surgical hand drill for inserting orthopedic screws and for drilling holes in the fixing of fractures and bone grafts employing a pair of bushings at opposite ends of a double-helix spiral drive shaft to maintain concentricity of rotation when transferring a squeeze hand motion to a pistol grip handle to a rotating drive motion for the screw and for the twist drill, with a compression-type return spring to return the drive shaft to its quiescent position, while providing a tactile feel to the surgeon as to the success in setting the screw into the bone, or drilling, a hole, and which includes a quick disconnect adapter for accepting orthopedic screw driver tips of square, hexagonal and/or cross-fit end shank or other configurations, or twist drills.