baber/WOPTO huggingface dataset:
Patent CA-2233262-A1 (CA)
Inventor: REMY CHRISTOPHE
IPC: A61K8/00
Filed: 1998-01-12
Abstract: La présente demande concerne l'utilisation d'un composant susceptible d'accapare r au moins un état vacant d'une bande d'énergie, correspondant à une lacune électroni que, d'un composé photochrome, pour améliorer le photochromisme dudit composé. Ce composant peut notamment être choisi parmi les composants comportant au moins un groupement hydroxyle, de préférence plusieurs groupements hydroxyles.
Patent CA-2235270-A1 (CA)
Title: Polymeres formant des phases cholesteriques, procedes permettant de les preparer et leur utilisation
Inventor: CALUNDANN GORDON
IPC: C09D167/00
Filed: 1996-10-18
Abstract: L'invention concerne des polymères formant des phases cholestériques, des procédés permettant de les préparer et leur utilisation. Selon l'invention, des polymères et des oligomères formant des phases cholestériques comportent pour blocs moléculaires de base principalement: A. au moins un bloc moléculaire de base chiral bifonctionnel comportant au moins un élément structural cyclique différent du groupe p-phénylène monosubstitué, B. au moins un bloc moléculaire de base achiral ou racémique bifonctionnel comportant au moins un élément structural cyclique qui contient au moins quatre chaînons de cycle, et C. au moins un bloc moléculaire de base bifonctionnel pouvant être au choix, chiral ou achiral, cyclique ou acyclique et qui diffère des blocs moléculaires de base A et B effectivement utilisés. Les blocs moléculaires de base sont reliés par des groupements ester avec (C=O) = O-C=O, de l'ester de dioxyde de carbone avec O-(C=O)-O, des groupes amide CONH, de l'amide CONR N-substitué, de l'imide cyclique avec six chaînons de cycle, des azométhines CH=N et CR=N. Les restes R, qui sont identiques ou différents, peuvent désigner alkyle C¿1?-C¿22?, aryle C¿1?-C¿22?, aralkyle C¿1?-C¿22?. Si le reste n'est pas cyclique ou si l'on a une combinaison avec un reste non cyclique, la partie non cyclique peut être linéaire ou ramifiée. Des restes linéaires, ramifiés et/ou cycliques peuvent le cas échéant contenir au moins un hétéroatome différent de C et de H, et/ou peuvent être substitués, également par hétéroatome. Le substituant peut notamment porter également un ou plusieurs halogène(s), sous réserve que le bloc moléculaire de base A ne soit pas exclusivement dérivé de l'acide de camphre. Pour obtenir les polymères et les oligomères selon l'invention, on remplace dans la formulation d'un polymère à cristaux liquides (LCP) (nématique) quelconque, entre 0,01 et 50 % en moles d'un ou de plusieurs des monomères correspondant aux blocs moléculaires de base B et/ou C par des monomères produisant le bloc de base chiral A obtenu selon l'invention. Les polymères et les oligomères de l'invention, qui forment des phases cholestériques, s'utilisent sous forme de granulés de matière de moulage en vue de traitements complémentaires dans des procédés de formage, par ex. dans le moulage par injection. Ils peuvent également subir des traitements pour former des pigments pour des peintures iridescentes.
Patent CA-2235367-A1 (CA)
Inventor: FORTUNE MARK H
IPC: F16L9/14
Filed: 1996-10-21
Abstract: Fire resistant pipes and pipe fittings include a structural pipe wall (12) d from helically wound reinforcing fiber (14) that is bonded together with a thermoset polymer resin (16). First embodiment pipes include a fire resistant layer (18) in the form of a resin rich carrier that is applied to the surface of the structural pipe wall (12). The resin used to impregnate the carrier is selected from the same group of resins used to form the structural pipe wall. Second embodiment pipes include a number of energy absorbing material layers (26) disposed around the structural pipe wall, and are formed from a material capable of absorbing heat energy from a surrounding outside layer to produce a thermally insulating gas therebetween. A number of fiber-reinforced resin layers are disposed around the structural pipe wall that is formed from an impact absorbing configuration of alternating release layers and fiberreinforced resin layers. Fire resistant pipe embodiments of this invention are configured to protect the structural wall from heat induced failure produced by exposing the outermost pipe wall to a 1,000 ~C flame for at least five minutes in a dry condition.
Patent CA-2237214-A1 (CA)
Inventor: BENNETT MALCOLM JOHN
IPC: C12N15/29
Filed: 1996-11-07
Abstract: The application relates to nucleic acid and proteins encoding the <u>AUX1</u>  gene product which is involved in auxin-related transduction in plants.  Transgenic cells, seeds and plants containing the nucleic acid are also claimed. The application also relates to the use of such nucleic acids and proteins to manipulate growth or development in plants.
Patent CA-2239867-A1 (CA)
Title: Utilisation d'une composition acide plus douce pour la peau
Inventor: RAPISARDA DARIO
IPC: A61K8/365
Filed: 1996-11-20
Abstract: L'invention concerne l'utilisation de l'acide sulfamique dans une composition liquide acide, contenant un autre acide. Cette composition est plus douce pour la peau.
Patent CA-2241553-A1 (CA)
Title: High voltage electrical connector with access cavity, and inserts for use therewith
Inventor: WENZEL JAMES A
IPC: H02G15/184
Filed: 1998-06-24
Abstract: A high voltage electrical connector interconnects sources of energy, such as transformers and circuit breakers, to distribution systems and the like via a high voltage cable. The high voltage electrical connector includes an access cavity providing access to the interior of the electrical connector. The access cavity may be fitted with an insert plug or an insert injection plug. The inserts include a conductive shield to reduce the possibility of electrical discharges from the inserts.
Patent CA-2242358-A1 (CA)
Title: Water distribution system with water saving diffusers
Inventor: LEON STEPHEN
IPC: E03C1/00
Filed: 1997-10-30
Abstract: A water-saving diffuser (1) for which a user perceives a relatively higher flow rate than the actual flow rate includes a lower chamber portion (10) housing a distributor disk (40) therein, and an accelerator portion (20) attached to the lower chamber portion (10), the accelerator portion (20) having a plurality of apertures for producing a multiple-stream output from the water-saving diffuser (1). A central aperture (42) of the distributor disk (40) can be custom-tailored to produce a specific flow rate for a given water supply pressure. The water-saving diffuser (1) may be used in a water distribution system to provide a predetermined uniform flow rate to all regions of a single or multi-story building.
Patent CA-2242639-A1 (CA)
Inventor: RANTANEN MATTI
IPC: H04N1/08
Filed: 1997-01-30
Abstract: The invention relates to an apparatus and method for the read-out of a latent image recorded on a stimulable phosphor sheet (1) by, for example, X-ray radiation. The apparatus comprises: a drum member (8) having a cylindrical circumferential surface; rotation means (22) for rotating (R) the drum member around the axis (3); means for maintaining the phosphor sheet (1) of a flexible material in the shape of the circumferential surface; a light source (4) for aiming stimulating light (6) at the phosphor surface (2); a photodetector (7) for detecting the light emitted from the phosphor surface under the effect of stimulation; and members (21) for moving (M), relative to the phosphor sheet, the stimulating light beam and the photodetector in a direction parallel to the axis. The cylindrical circumferential surface (5) is made up of the concave inner surface of the cylinder cavity (15) of the drum member, and the said transfer members (21) extend to the inside of the cylinder cavity (15) in order to introduce a stimulating beam and to aim it at the concave phosphor surface (2) of the phosphor sheet and to collect in the photodetector the light emitted from the phosphor surface.
Patent CA-2244554-A1 (CA)
Title: Inhibition of graft versus host disease
Inventor: SPANER DAVID ELLIOTT
IPC: A61K35/17
Filed: 1998-07-30
Abstract: The development of graft versus host disease in a mammalian patient undergoing cell transplantation therapy for treatment of a bone marrow mediated disease, is prevented or alleviated by subjecting at least the T-cells of the allogeneic cell transplantation composition, extracorporeally, to at least one stressor selected from heat stressors and oxidative stressors, in appropriate dosage amounts. A preferred process involves subjecting composition including T-cells and stem cells to the stressor(s) in the presence of a stem cell growth factor which acts as a protectant for the stem cells during the stressing process.
Patent CA-2246205-A1 (CA)
Inventor: NAE HEMI
IPC: C09K8/36
Filed: 1998-08-31
Abstract: An improved drilling fluid with enhanced anti-settling properties useful for oil well drilling systems is described. The invention includes a process for providing anti-settling properties to oil invert (i.e., water in oil emulsion) based fluids. The drilling fluid/drilling mud invention contains at least one copolymer reaction product of which the reactants comprise at least one ethylenically unsaturated carboxylic compound and at least one alpha-olefin. As an alternative embodiment one or more rheologically-active clays including organoclays and smectite clays in combination with such copolymer reaction product are also added to the drilling fluid. The invention also includes an anti-settling additive comprising a rheologically active clay and the above described copolymer.
Patent CA-2247929-A1 (CA)
Inventor: OHMURA SATOSHI
IPC: C07H17/08
Filed: 1997-02-28
Abstract: A process for the preparation of N-demethyl-N-isopropyl-8,9-anhydroerythromycin A 6,9-hemiacetal or salts thereof, characterized by reacting N-demethylerythromycin A or salts thereof with an isopropylating agent and treating the obtained product under acidic conditions; and a process for the preparation of substantially pure crystals of 8,9-anhydroerythromycin A 6,9-hemiacetal derivatives or salts thereof, characterized by recrystallizing crude crystals of 8,9-anhydroerythromycin A 6,9-hemiacetal derivatives of general formula (VI) or salts thereof from hydrous isopropanol as solvates, wherein R1 and R2 are each independently C1-C6 alkyl, C2-C6 alkenyl or C2-C6 alkynyl; R3 is hydrogen or hydroxyl; one of R4 and R5 is hydrogen and the other thereof is hydroxyl, or alternatively R4 and R5 are united to form O =; R6 is hydrogen or optionally substituted hydroxyl; and R7 is hydrogen or hydroxyl.
Patent CA-2251649-A1 (CA)
Title: Procedes et appareils destines au durcissement de verres de lunettes par lumiere ultraviolette et avec un refroidissement ameliore
Inventor: LUETKE STEPHEN C
IPC: C08J7/04
Filed: 1997-04-18
Abstract: Procédé et appareil de fabrication et d'application d'un revêtement sur des verres en matière plastique. Une barrière d'oxygène, contenant un photoamorceur, est utilisé pour faire durcir les parties des verres insuffisamment durcies. Des rayons pulsés sont utilisés pour réguler la vitesse de durcissement du verre. Celui-ci est post-durci alors qu'il se trouve dans une cavité de moule au moyen d'une source de chaleur conductrice. De l'air peut être dirigé vers la cavité de moule pour contribuer à dissiper la chaleur du verre. Un revêtement résistant aux rayures peut être formé dans le moule à partir de deux matériaux distincts qui contiennent tous les deux un photoamorceur.
Patent CA-2251824-A1 (CA)
Title: A safety device at preloaded bolts
Inventor: ELGH MARTIN
IPC: F01D25/24
Filed: 1997-04-07
Abstract: A safety device at preloading of bolts for providing the bolt with an internal stress in mounted condition, and which bolt (3) at a first end is secured to a first element (1) and extends through a second element (6), which shall be clamped to the first element, and where a hydraulic preloading device (11-14, 17-19) is temporarily applied to a second end of said bolt for axially stretching the bolt (3), to create said internal stress, wherein the safety device incorporates a safety tensile bar (34) detachably fitted to the said first end of the bolt (3), and extending through a central bore (31) in the bolt (3) and further through said hydraulic preloading device (11-14, 17-19), and being held adjacent its opposite end in an expanding plug (28), provided to create in combination with friction against a sleeve (25) guiding said plug (28), a counterhold absorbing relieved energy in case of the breaking of such a bolt (3) during the preloading operation.
Patent CA-2252566-A1 (CA)
Inventor: SUKIENNIK CORRINE ANN
IPC: A61B19/04
Filed: 1997-04-23
Abstract: Disclosed is an elastic strip (10) having a length which terminates at first and second generally opposed ends and a width which terminates at generally opposed edges. The strip (10) has a first surface which includes an area of loops (26) located near one of the opposed ends and a second surface which includes an area of hooks (30) located near the other second opposed end. The strip (10) is adapted to elongate and recover at least along the strip's length and the hooks (30) are configured to engage the loops (26) to join the first and second surfaces of the strip (10) together. The device may be utilized to effect retention of a surgical glove (64) in place upon the forearm of the wearer by encircling the wrist of forearm of the wearer of the surgical glove (64) with the device, stretching the device about the gloved wrist/forearm and joining the opposed ends of the device about the gloved wrist/forearm. The device can be designed to be used only one time and then disposed. That is the device can be a "single use" device.
Patent CA-2253110-A1 (CA)
Inventor: FRENTZEL RICHARD LEE
IPC: C08L101/12
Filed: 1998-11-06
Abstract: A positive temperature coefficient (PTC) resistor composition, comprising: (a) about 3% to about 75% by weight of a binder resin, (b) about 2% to about 70% by weight of a temperature activatable semicrystalline polymer, which is a thermoplastic elastomer (TPE) that melts at a relatively narrow temperature range to change from a crystalline state to an amorphous state, (c) about 10% to about 80% by weight of an electrically conductive material in finely particulated form selected from the group consisting of silver, graphite, graphite/carbon, nickel, copper, silver coated copper, and aluminum, (d) about 0.01% to about 80% by weight of solvent material for the composition.
Patent CA-2255706-A1 (CA)
Inventor: MAHAN MICHAEL J
IPC: C12Q1/68
Filed: 1997-05-16
Abstract: The present invention relates to a class of microbial coding sequences the transcription or cotranscription of which is specifically induced during microbial infection of a host. These particular coding sequences or defined regions thereof may be used as probes to identify and isolate microbial virulence genes. The products of these virulence genes will provide potential targets for the development of vaccines or antimicrobial agents.
Patent CA-2257713-A1 (CA)
Inventor: FERNANDO RAYMOND H
IPC: E04B1/84
Filed: 1999-01-04
Abstract: A ceiling board coating composition includes water, a binder and a filler, said filler having large particles with an average particle size of a minimum of about 50 microns, medium particles with an average particle size in the range of from about 1.2 to about 30 microns, and small particles which have an average particle size in the range of from about 0.1 to about 1.0 microns.
Patent CA-2260849-A1 (CA)
Title: Fabric cleaning formulations
Inventor: MATERNIAK JOYCE MONSON
IPC: C11D3/00
Filed: 1997-08-13
Abstract: This invention relates to aqueous cleaning formulations useful in the cleaning of textile fabrics such as carpets and upholstery. The cleaning formulations comprise a) detergent, b) fluorochemical soil-resist agent, c) stain-resist agent, and d) a stable aqueous dispersion of inorganic particulate matter selected from the group consisting of clay, colloidal silica, colloidal alumina, titanium dioxide, and mixtures thereof.
Patent CA-2262938-A1 (CA)
Title: Locking pins for movable subframe of tractor-trailers
Inventor: PIERCE PHILLIPPI RANDSOME
IPC: B62D53/06
Filed: 1997-08-27
Abstract: A movable subframe for tractor-trailers, commonly referred to as a slider, includes a retractable pin mechanism having improved locking pins (149) for locking the movable subframe in a selected position relative to the tractor-trailer body. The improved pin includes a tapered or truncated conical-shaped portion (151) which nests in a tapered enclosure (164) when the pins are in the fully extended or locked position. When one or more of the pins of the retractable pin mechanism become jammed in the locked position due to slight misalignment between the respective slider and trailer body openings through which each pin extends when in the locked position, a generally uniformly distributed contact surface pressure exists between the truncated conical-shaped portion (151) of the pin and the tapered enclosure. Other parts of the pin are subjected to relatively intense contact point pressures. Such pressures in turn cause shear forces which resist retraction of the jammed pins. However, a vehicle operator attempting to free the pins needs only to slightly retract the pin mechanism and clearance is created between the tapered portion of each jammed pin and the tapered enclosure, much like pulling two tapered cups apart when one is stored within the other. Once clearance occurs, the areas of contact point pressure on the pin at other locations also are relieved. The retraction of the jammed pins of the present invention is achieved without overexertion on the part of the vehicle operator and/or damage to the retractable pin mechanism.
Patent CA-2265341-A1 (CA)
Title: Olefin hydration process
Inventor: SMITH MARK ROYSTON
IPC: B01J23/30
Filed: 1999-03-16
Abstract: This invention relats to a continuous process for the hydration of olefins with water in the vapour phase to the corresponding alcohol in the presence of a heteropolyacid salt as catalyst said process including the recycle of un-reacted olefin back to the hydration reaction characterised in that the heteropolyacid salt is a metal salt of silicotungstic acid or phosphotungstic acid which is soluble in a polar solvent below 40°C wherein the metal in the salt is an alkali metal or an alkaline earth metal.
Patent CA-2272104-A1 (CA)
Title: Method for making a thin film resonant microbeam absolute pressure sensor
Inventor: HERB WILLIAM R
IPC: G01L9/00
Filed: 1997-12-29
Abstract: A micromechanical sensor having a polysilicon beam that is an integral part of the diaphragm resulting in a frequency of the beam that is a direct result of the pressure applied to the external surface of the diaphragm. Fabrication of this resonant microbeam sensor has no backside wafer processing, and involves a process and layout independent of wafer thickness for high yield and robustness. Both the diaphragm and resonant beam are formed from polysilicon. The sensor may have more than one resonant beam. The sensor beam or beams may be driven and sensed by electrical or optical mechanisms. For stress isolation, the sensor may be situated on a cantilevered single crystal silicon paddle. The sensor may be recessed on the isolating die for non-interfering interfacing with optical or electrical devices.
Patent CA-2275942-A1 (CA)
Title: Procede de traitement de gaz d'echappement de moteurs a combustion interne fonctionnant avec un carburant contenant du soufre
Inventor: VISCIGLIO VALERIE
IPC: B01J35/10
Filed: 1997-12-18
Abstract: La présente invention concerne un procédé de traitement de gaz d'échappement de moteurs à combustion interne fonctionnant avec un carburant contenant du soufre. Ce procédé est caractérisé en ce qu'on utilise, à titre de catalyseur, une composition à base d'un oxyde de cérium et d'un oxyde de zirconium, dans une proportion atomique cérium/zirconium d'au moins 1, et d'au moins un oxyde choisi parmi l'oxyde d'yttrium, de lanthane et de praséodyme et qui présente une surface spécifique après calcination de 6 heures à 900 ~C d'au moins 35 m2/g.
Patent CA-2276331-A1 (CA)
Title: Image positioning device and method
Inventor: HINSBERG GREGOR
IPC: G03B25/00
Filed: 1999-06-25
Abstract: An image positioning device includes surface elements having front and back sides and images on the front and/or the back sides. An end of a first surface element and a front side of a second surface element are turnably coupled along a first axis of rotation and an end of the second surface element and a front side of a third surface element are turnably coupled along a second axis of rotation.  The first and second rotational axes are approximately parallel with one another.  Successive flipping of the surface elements animates the images.
Patent CA-2276923-A1 (CA)
Title: Manufacture of sections of fibre-plastic compound materials
Inventor: KAERGER JENS
IPC: B29C70/52
Filed: 1999-07-06
Abstract: The method for the manufacture of sections of fibre-plastic compound materials is carried out by means of at least one draw nozzle (10). In this nozzle, fibres (41) which are impregnated with flowable plastic (42) are formed under pressure to a product (41) with a predetermined cross-section and consolidated with the withdrawal of heat. The cross-sectional surface of the draw nozzle is periodically increased and decreased in time in its entire shape imparting region, with a value for the frequency of the oscillating cross-sectional surface being chosen less than 1 kHz, preferably less than 100 Hz.
Patent CA-2276980-A1 (CA)
Title: Antenna device, and transmitting/receiving apparatus
Inventor: TANIZAKI TORU
IPC: H04B1/38
Filed: 1999-07-06
Abstract: An improved antenna device is provided which is easy to be made compact in size and easy to deflect a beam at a high speed. Further, a transmitting/receiving apparatus using the improved antenna device is provided which is capable of performing a detection within a large range. In particular, a primary radiator and a first transmission line combined with the primary radiator are provided on a movable section, a second transmission line electromagnetically combined with the first transmission line and a dielectric lens with a position of said primary radiator serving as a generally focal point surface are provided on a fixed section. Further, a structure is provided capable of deflecting the beam by displacing the movable section. Also, means is provided to detect the position of the movable section and a control means is provided for displacing the movable section in accordance with a position designating signal of the movable section.
Patent CA-2278317-A1 (CA)
Inventor: OTT TEUNIS J
IPC: H04L49/111
Filed: 1998-01-14
Abstract: The present invention is directed to a method and system for dynamically adjusting the total bandwidth that an asynchronous transfer mode (ATM) switching system (105) can make available to Available Bit Rate (ABR) virtual circuits by determining the total bandwidth allocated to the inactive ABR  virtual circuits in the switching system (105), and making available the bandwidth allocated to the inactive ABR virtual circuits to the active ABR  virtual circuits in the switching system (105). When transmission of cells resumes for an inactive ABR virtual circuit, the switching system allocates new bandwidth to the virtual circuit. Furthermore, the switching system (105) dynamically adjusts the total bandwidth that the switching system (105) can make available to ABR virtual circuits by recomputing, at fixed time intervals, the total bandwidth that is available to the active ABR virtual circuits that are bottlenecked at the switching system (105).