baber/WOPTO huggingface dataset:
Patent CA-2230812-A1 (CA)
Inventor: OGATA SHIRO
IPC: B32B9/00
Filed: 1997-06-27
Abstract: A photocatalyst sheet whose substrate made of an organic polymer compound is not decomposed by a photocatalytic function, whose photocatalytic function is not lost even when washed, and which can provide a photocatalytic function even under an environment in which sufficient ultra-violet rays cannot be obtained from the outside. Fibers, filament fibers, or yarns, ribbons, knitted fabrics, woven fabrics or non-woven fabrics made of filaments, or films, are used as the substrate. A substrate protective layer is formed at a portion, made of an organic polymer compound, of the substrate, and a layer of a photocatalytic semiconductor is formed on the entire surface of the substrate inclusive of the substrate protective layer.
Patent CA-2230885-A1 (CA)
Title: Compounds and methods for immunotherapy and diagnosis of tuberculosis
Inventor: TWARDZIK DANIEL R
IPC: C12Q1/68
Filed: 1996-08-30
Abstract: Compounds and methods for inducing protective immunity against tuberculosis are disclosed. The com-pounds provided include polypeptides that contain at least one immunogenic portion of one or more M. tuberculo-sis proteins and DNA molecules encoding such polypep-tides.    Such compounds may be formulated into vac-cines and/or pharmaceutical compositions for immuniza-tion against M. tuberculosis infection, or may be used for the diagnosis of tuberculosis.
Patent CA-2231031-A1 (CA)
Title: Dispositif d'actionnement d'au moins un interrupteur a securite renforcee
Inventor: DOREY MICHEL
IPC: H01H13/18
Filed: 1998-02-27
Abstract: La présente invention est relative à un dispositif d'actionnement d'au moins un interrupteur (4) principal, comportant un levier (1) ayant deux faces principales (8,9). Dans une position de travail du levier, sa première face (9) principale est destinée à actionner l'interrupteur (4) principal. Dans une position de repos du levier, sa seconde face (8) principale est destinée à actionner au moins un interrupteur (14) auxiliaire apte à délivrer une information relative à la position de repos. Application notamment pour poignée de manipulation.
Patent CA-2231823-A1 (CA)
Title: Milling cutting insert and milling toolholder therefor
Inventor: SATRAN AMIR
IPC: B23C5/20
Filed: 1996-09-17
Abstract: A milling cutting insert (1) including a substantially prismatic body portion (2) having an upper surface (3), a lower surface (4) and at least two pairs of adjacent side surfaces (5, 7, 8, 9); a pair of spaced apart co-planar abutment surfaces (5A, 5B, 7A, 7B) formed along a first side of a first of the pairs of side surfaces and at least one planar abutment surface (8A, 8B) formed along a second side of the first pair of side surfaces; and a cutting corner (10A, 10B) defined between the side surfaces of a second pair of side surfaces and including a front cutting edge (17) protruding outwardly with respect to a first side (5, 7) of the other pair of side surfaces opposite the first side of the first pair of side surfaces, the front cutting edge being parallel to the spaced apart co-planar abutment surfaces.
Patent CA-2234705-A1 (CA)
Inventor: YATES RAYMOND
IPC: C10L5/14
Filed: 1996-10-10
Abstract: Mineral fines such as coal fines are agglomerated structures into briquettes or tablets by a cold roll-press operation using as a binder an ester-cured alkaline phenol-formaldehyde resole resin together with an oxyanion to enhance green strength.
Patent CA-2236269-A1 (CA)
Title: Selective .beta.3 adrenergic agonists
Inventor: THORPE ANDREW JOHN
IPC: C07D471/04
Filed: 1997-08-28
Abstract: The present invention is in the field of medicine, particularly in the treatment of Type II diabetes and obesity. More specifically, the present invention relates to selective .beta.3 receptor agonists useful in the treatment of Type II diabetes and obesity. The invention provides compounds and methods of treating Type II diabetes and obesity, comprising administering to a mammal in need thereof compounds of formula (I).
Patent CA-2236390-A1 (CA)
Title: A grinder mixer assembly
Inventor: LANG WILLIAM J
IPC: E02F3/20
Filed: 1998-04-30
Abstract: The grinder mixer assembly includes a drum assembly with end plates rotatably supported on stub shafts. These stub shafts are secured to arms of a yoke assembly. The spindle of a first hydraulic motor is secured to one of the stub shafts. The housing of the first motor is connected to a center portion of the drum by a key. The spindle of a second hydraulic motor is secured to the other stub shaft. The housing of the second motor is to a center portion of the drum by a key. The keys transmit torque from drive rings attached to each motor to driven rings attached to the drum mid way between the end plates of the drum.
Patent CA-2236659-A1 (CA)
Inventor: HARDMAN HERBERT S
IPC: B67B7/18
Filed: 1996-10-31
Abstract: A fully automatic jar opener (10) for loosening a threaded cap includes a bottom jar retainer (12) including substantially horizontal clamps (14, 14a) automatically movable along a horizontal plane between an open position and a jar clamping position. The clamps, while in the jar clamping position, hold a jar (16) substantially without slippage and a top jar retainer (18) holds the cap (20) substantially without slippage when the cap is subjected to a twisting force. A vertical drive (63) automatically adjusts the relative vertical positions between the bottom and top retainers to apply a holding force on the cap. The automatic jar opener includes at least one motor (40, 70, 80) for applying the twisting force to the top retainer, for moving the clamps along the horizontal plane, and for adjusting the relative vertical position between the retainers. A controller (100) automatically controls the motor and enables loosening of the cap with one, single, discrete user command.
Patent CA-2236985-A1 (CA)
Inventor: KUO KAREN K
IPC: C08G63/16
Filed: 1996-10-10
Abstract: Cette invention concerne des polyesterdiols ayant des viscosités faibles et inférieures à 3500 cps, un contenu élevé en matières volatiles dépassant 96 % du poids, ainsi qu'une répartition étroite du poids moléculaire qui soit inférieure à environ 1,4. Ces polyesterdiols sont obtenus par estérification d'un ou de plusieurs acides aliphatiques dicarboxyliques, ou de leurs dérivés ester, à l'aide d'un excédent molaire de 1,5 d'un ou de plusieurs diols aliphatiques jusqu'à ce que l'on atteigne un nombre acide inférieur à 20, les diols excédentaires étant ensuite démontés du produit de réaction polyesterdiol. Lorsque l'on utilise un catalyseur d'estérification, ce catalyseur est pratiquement éliminé avant de démonter du produit de réaction polyesterdiol le diol excédentaire n'ayant pas réagi. Les polyesterdiols ainsi obtenus peuvent être utilisés (1) en qualité de composants durcissables dans des compositions de résines thermodurcissables, notamment dans des compositions quasiment sans solvants organiques volatils et contenant un agent de réticulation ainsi qu'un agent de durcissement réactif, et/ou (2) en qualité de revêtements, de peintures et d'adhésifs, ce qui permet ainsi d'obtenir des revêtements ayant un contenu très faible en composés organiques volatils.
Patent CA-2238712-A1 (CA)
Title: Device for the connection of a hydraulic apparatus to an external component
Inventor: KNAPP FRANCESCO
IPC: F16L21/035
Filed: 1997-10-08
Abstract: A device for the connection of a hydraulic apparatus to an external component, especially for the connection of a hang-held showerhead to a flexible water supply tube. The apparatus includes a tubular part (1) that includes a window (2). The connecting member (4) has means for its connection to the external component and has an outside diameter sized to be inserted in the tubular part (I). The connecting member (4) also includes a packing (9) for establishing a hydraulic seal between the tubular part (1) and the connecting member (4). The connecting member (4) has a recess that corresponds to the window (2) of the tubular part (1) and that at its opening has a dimension that is greater than the corresponding dimension of the window (2). Also included is an adjusting block (12) which fits in the window (2) and the recess (6) for locking the tubular part (1) of the apparatus and the connecting member (4).
Patent CA-2240681-A1 (CA)
Title: Creation and use of multiple gradients in electrophoresis in gel slabs and in capillaries
Inventor: RIGHETTI PIER GIORGIO
IPC: C12Q1/68
Filed: 1997-02-10
Abstract: The present invention refers to the use of multiple gradients (of chemical denutarants, thermal denaturants and of porosity of the gel matrix) for the separation of DNA fragments, amplified by PCR, normal or carrying point mutations, by zone electrophoresis on gel slabs or by capillary electrophoresis in presence of viscous polymer solutions (linear or branched). Such method can be extended to the analysis of mutations in proteins and to the optimization of, e.g., chiral separations in capillaries. The invention includes the use of binary gradients (chemical and porosity gradients or thermal and porosity gradients) or the simultaneous use of 3 gradients for point mutations having a very high melting point. In the case of capillary electrophoresis, the invention extends also to the use of batteries of capillaries, for the simultaneous analysis of a number of samples. Additionally, the invention includes the detection of DNA fragments (or of proteins and other analytes) by laser-induced fluorescence detection and the possibility of operating, in capillary electrophoresis, with mixed polymer solutions and with polyacrylamides obtained with monomers highly resistant to hydrolysis.
Patent CA-2241093-A1 (CA)
Inventor: HEAD JOHN CLIFFORD
IPC: C07D217/16
Filed: 1996-12-20
Abstract: Compounds of general formula (1) are described, wherein W, L, R3, R4, R5, R6 and R7 have the meanings as defined in the description, according to which at least one of R4 or R5 is a -(CH2)t ArN(R b)CX1N(R b)L2(Alk)m Ar group. The compounds are phosphodiesterase type IV inhibitors and are useful in the prophylaxis and treatment of diseases such as asthma where an unwanted inflammatory response or muscular spasm is present.
Patent CA-2241410-A1 (CA)
Title: Pth
Inventor: LI TONG
IPC: A61P31/04
Filed: 1998-08-20
Abstract: The invention provides pth polypeptides and polynucleotides encoding pth polypeptides and methods for producing such polypeptides by recombinant techniques. Also provided are methods for utilizing pth polypeptides to screen for antibacterial compounds.
Patent CA-2241880-A1 (CA)
Inventor: ANDERSON GREGOR JOHN MCLENNAN
IPC: B65D83/04
Filed: 1996-12-19
Abstract: A powder inhalation device comprising a housing containing a pharmacologically active compound, a conduit (8) with an outlet extending into the housing through which a user can inhale to create an airflow through the conduit, a dosing unit (6, 7) for delivering a dose of the compound to the conduit and baffles (9) arranged within the said conduit to aid disintegration of powder agglomerates entrained in said airflow. The baffles (9) comprise a plurality of staggered plates extending into the conduit from opposite sides of the conduit at an angle of less than 90~ to the sides of the conduit and are inclined towards the outlet to create a plurality of constrictions within the conduit and a plurality of changes in the direction of the said airflow through the conduit.
Patent CA-2243151-A1 (CA)
Title: Variable pitch fan
Inventor: GERWING MURRAY C
IPC: F04D29/36
Filed: 1998-07-15
Abstract: A variable pitch fan in which the pitch of the fan blades is varied under control of a controller according to the speed of the fan. The controller is programmed to respond to increased fan speed by decreasing pitch of the fan blades. The variable pitch fan has a piston extending axially from a main shaft, about which main shaft a fan blade hub rotates. A pitch shifter is mounted on a cylinder, which itself is mounted on the piston. The pitch shifter is actuated by hydraulic fluid supplied through the main shaft to the cylinder. The piston is preferably axially stationary in relation to the main shaft. The cylinder is secured against rotational movement by at least one guide pin passing into the main shaft. Grease for the pitch shifter is supplied through the guide pin. One guide pin may be used for grease supply, while another may be used for excess grease return. Cooling of a pitch shifter may be accomplished using a heat sink mounted within the fan hub, preferably in a fan configuration, to conduct heat away from the cylinder into air rotating within the fan hub. Counterweights are mounted on each fan blade of a variable pitch fan, preferably hydraulically actuated, in a position which generates a torque opposite in direction to torque generated by the fan blades. The counterweights may be overbalanced, underbalanced, or balanced.
Patent CA-2245632-A1 (CA)
Title: Detergent containing lithium metal having improved dispersancy and deposit control
Inventor: LE COENT JEAN-LOUIS
IPC: C10N60/10
Filed: 1998-08-20
Abstract: Non-thixotropic, sodium-free lubricant additive having from 10% to 50% of a liquid organic diluent and from 30% to 90% of a substituted hydrocarbaryl metal salt. At least 30 mole percent of the metal in the metal salt is lithium, and the salt is essentially free of sodium. The BN of the non-thixotropic lubricant additive attributable to the lithium is less than 150. This additive is useful for decreasing black sludge deposits and piston deposits.
Patent CA-2247493-A1 (CA)
Title: Adaptive frequency allocation in a telecommunication system
Inventor: BRINGBY DANIEL
IPC: H04W16/10
Filed: 1997-02-24
Abstract: In a telecommunications network, a method and apparatus for allocating channels makes signal quality measurements for channels that are in use or available for use and for channels that may become available for use. Already selected channels (i.e., channels in use or available for use) that exhibit poor signal quality characteristics are exchanged with candidate channels (i.e., channels that may become available for use) that exhibit better signal quality characteristics to thereby improve the overall signal quality of the network.
Patent CA-2250399-A1 (CA)
Title: A method and an apparatus for manufacturing an extruded plastic product, and a plastic product
Inventor: KIRJAVAINEN KARI
IPC: B29C48/94
Filed: 1997-03-19
Abstract: The invention relates to a method and an apparatus for manufacturing an extruded plastic product, the apparatus comprising at least one rotor (1) and at least one stator (2, 3) with a feed gap (4) provided between them, a groove (7) being situated on the other side of the feed gap (4), the groove pressing the material to be extruded out of the apparatus when the rotor (1) is rotated. The cross section of the groove (7) remains substantially unchanged. At the opposite side of the feed gap (4) there is positioned a countergroove (8) in such a way that a processing cavity consisting of the grooves (7), the countergrooves (8) and the clearance between them decreases at least partially continuously along the axis of the extruder. The deformation energy of the material can thus be kept as small as possible due to the unchanging cross section of the groove (7), and the material stays in the groove (7) due to the placement of the flights (7a, 8a). The material is made to move rotatably, which enables the manufacture of a laminar plastic product (11). Further, materials that would otherwise be difficult to process can also be extruded effectively.
Patent CA-2251732-A1 (CA)
Title: Flexible cable management system
Inventor: JETTE ROGER
IPC: H02G3/04
Filed: 1997-04-23
Abstract: A cable support assembly which includes at least one elongate flexible spine member and a plurality of open ended support members mounted on the flexible spine member and spaced apart from one another such that the open ended support members define a support surface.
Patent CA-2252489-A1 (CA)
Inventor: SIERRA MEDINA MANUEL
IPC: F24F7/007
Filed: 1998-11-03
Abstract: A domestic apparatus for detection and expulsion of gas provided with means for expelling outside the gas detected indoors by the device itself whose casing (2) includes an encapsulated motor (1) which, by the fan (3) and through the grid (7), sucks the indoors accumulated gas also localised through the grid (10) by the device's sensor (5) that actuates the motor (1) and sound/light warning alarms (9) besides the switched on indicator's light (8); the accumulated gas is extracted through the duct (6) that, after a short stretch after the grill (7), can be divided in a preferred embodiment into two identical channels (6) that in side section shape a curve with a point of inflection, which describe opposing trajectories, diametrically opposite and equidistant from each other, ending in respective outside grills (4); the motor (1) is located between such branching channels (6) centred in the same horizontal plane with the fan's shaft (11).
Patent CA-2254048-A1 (CA)
Title: Process for pumping bitumen froth through a pipeline
Inventor: SURY KENNETH
IPC: F17D1/16
Filed: 1998-11-12
Abstract: A process for transporting deaerated bitumen froth in a pipeline is described which comprises injecting water into the pipeline prior to deaerated bitumen froth injection to wet the interior walls of the pipeline. The deaeratedbitumen froth is then injected into the pipeline at a critical velocity above 0.3 m/sec thereby initiating self-lubricating core-annular flow of the bitumen froth.
Patent CA-2254899-A1 (CA)
Inventor: PATRICK DAVID MALCOLM
IPC: H04B10/27
Filed: 1997-05-16
Abstract: An optical synchronisation circuit includes a non-linear optical modulator (NOM). The signal to be synchronised and a reference signal interact within the NOM. Cross-phase modulation produces a spectral shift. The output from the NOM is filtered to produce an error signal.
Patent CA-2257495-A1 (CA)
Inventor: MAY GREGORY DEAN
IPC: H04B10/17
Filed: 1996-12-04
Abstract: The invention provides a method and system for transmitting very high bit rates over an optical link, using unidirectional and bidirectional WDM  technology. The 1550 nm window for optical transmission is spatially separated into two bands, "Red" and "Blue", and the channels in each band are selected so that respective wavelengths present a substantially equal gain tilt. A  fiber amplifier designed according to spatial separation and wavelength selection of the invention is disclosed, along with multiple span WDM network topologies.
Patent CA-2257988-A1 (CA)
Title: Connector bushing
Inventor: LEHNER ANTON
IPC: H01R4/18
Filed: 1997-06-16
Abstract: A plug connector sleeve (1) with a plug region (2) and a conductor connection region (3), in which the plug region takes the form of a sleeve (4) with a base (5), two side walls (7a, 7b) which are bent up from the base (5) and has two cover halves (8a, 8b) running from the side walls and have free ends (9a, 9b) which are bent around towards the inside of the sleeve. The plug connector sleeve (1) has a central base region (30) which follows the plug region (2), is box-shaped with a base section, in the extension of the base of the plug region with side walls in the extension of the side walls of the plug region and with a cover section formed by third and fourth cover halves (18, 19) which are formed by bending the side walls of the central base region.
Patent CA-2259474-A1 (CA)
Title: Fingertip-mounted minimally invasive surgical instruments and methods of use
Inventor: EK STEVEN
IPC: A61B17/128
Filed: 1997-06-30
Abstract: The invention is a number of minimally invasive surgical instuments that can be mounted directly on a surgeon's fingertips in a way that the surgeon can insert his or her hand into a patient through a minimal incision to perform surgical procedures, and also to use his or her fingers to manipulate tissues. The invention enables the surgeon to perform the procedures with all the benefits of minimally invasive surgery, but with much greater tactile sense, control, and ease of manipulation, then enabled by known minimally invasive surgical instruments.
Patent CA-2259581-A1 (CA)
Title: Plasters for percutaneous absorption
Inventor: KAWAJI TOSHIKUNI
IPC: A61K9/70
Filed: 1998-05-11
Abstract: Patch preparations for percutaneous absorption with the use of supports showing an appropriate strength as a patch support, which are excellent in drug barrier characteristics, compatibility with the skin, ODT effects and handling characteristics and can sustain these specific properties in a stable state over a prolonged period of time, thus ensuring good percutaneous absorption of drugs. In these patch preparation, use is made as the support of polyester film/nonwoven vinylon fabric laminates showing an elongation percentage of at least % and a tensile cutting load of at least 0.5 kg/10 mm, when measured by the test method specified in JIS K6732. In particular, the thickness of the polyester film constituting the laminate supports ranges from 1.5 to 6.0 µm and the unit weight of the nonwoven vinylon fabric ranges from 3 to 12 g/m2.
Patent CA-2261546-A1 (CA)
Inventor: LANGE JACK
IPC: F23K5/04
Filed: 1999-02-09
Abstract: An anti-siphon fuel supply system includes a fuel storage container, a pump for pumping the fuel from the fuel storage container, a supply line connecting the pump to the fuel storage container and a return line also connecting the pump to the fuel storage container. A manifold block mounts to a top side of the fuel storage container for dividing the supply and return lines into respective first portions extending towards the pump and respective second portions extending into the fuel storage container. A pipe extends upwards from the manifold block for connection at a bottom end of the pipe to the return line and for providing a vent at a top end for venting the return line. The vent allows the return line to drain without siphoning contents of the fuel storage container in the event the first portion of the return line experiences a leak or break. A pressure sensitive valve is connected to a bottom end of the second portion of the supply line. The valve includes an inlet port and a valve member within an inner chamber. A spring aids to urge the valve member against the inlet port wherein the valve member is fitted to cover the inlet port. The valve is arranged such that the pump provides sufficient head to unseat the valve member from the inlet port such that the fuel is free to flow through the inlet port to the supply line. In the event the first portion of the supply line experiences a break there is insufficient head provided to unseat the valve member from the inlet port such that the fuel is not able to siphon through the inlet port to the supply line.
Patent CA-2265155-A1 (CA)
Title: Nozzle for producing high-impact long-range jet from fan-blown air
Inventor: DAVIDSON JOHN FREDERICK HAYDEN
IPC: B05B1/00
Filed: 1999-03-10
Abstract: Blow-off nozzles are used for creating a high-energy air blast, for drying metal panels prior to painting. Depth or reach of penetration (in the atmosphere) is important. A  bullet is provided in the centre of the nozzle. The bullet is aerodynamically faired, for minimum drag. The effect of the bullet is to create a low pressure area in the jet downstream of the nozzle. The low pressure area serves to hold the jet together, preventing spreading, to a degree that enables a significant increase in penetration distance. The bullet is mounted on faired arms, which are secured to the walls of the nozzle.