baber/WOPTO huggingface dataset:
Patent CA-2219952-A1 (CA)
Inventor: JOHNSON WARREN J
IPC: E01F9/04
Filed: 1996-04-11
Abstract: A pavement marker comprises an unpotted upper shell (12) and a lower base plate (14) together defining a housing, and a plurality of ribs in the housing interior oriented substantially perpendicular to the inner wall of the base plate. The upper shell has first and second opposed end faces (12B,c) inclined at an angle of approximately 30°, first and second opposed convex side faces (12D,E) having opposed recessed finger grip slots (30a,B) formed therein, and an upper face (12F), and is made of a plastic material having moderate to high flexural and impact moduli. The upper shell has a low profile and curved edges to minimize vehicle impact, and preferably is made of a thermoplastic resin such as polycarbonate, and includes about 30 % glass fiber reinforcement.      The lower base plate has a planar inner wall and an opposed planar, pavement-engaging outer wall, and is made of a plastic material, preferably plastic, having a Young's modulus of at least approximately 300,000 PSI (20.7 × 10 8 Pascal). The bottom peripheral surface of the shell can have a peripheral recess formed therein for receiving the base plate. The ribs are formed unitarily with the inner wall of either the upper shell or the base plate, and extend upwardly from the inner wall of the base plate to the inner wall of the shell to support the inner wall of the shell. A retroreflective lens (50, 52) is positioned on at least one of the first and second opposed side faces of the marker. The ribs can be arranged to extend longitudinally and transversely in a grid pattern; or they can be divided into a first group in which the ribs are circular in shape and concentric, and a second group in which the ribs extend radially with respect to the first group. The pavement marker preferably has a minimum apparent modulus of approximately 80,000 PSI (5.52 × 10 8 Pascals).
Patent CA-2221100-A1 (CA)
Title: Process for producing semiconductor article
Inventor: YONEHARA TAKAO
IPC: H01L21/322
Filed: 1997-11-14
Abstract: A novel process for producing a semiconductor article is disclosed which comprises steps of preparing a first substrate constituted of a silicon substrate, a nonporous semiconductor layer formed on the silicon substrate, and an ion implantation layer formed in at least one of the silicon substrate and the nonporous semiconductor layer; bonding the first substrate to a second substrate to obtain a multiple layer structure with the nonporous semiconductor layer placed inside; separating the multiple layer structure at the ion implantation layer; and removing the ion implantation layer remaining on the separated second substrate.
Patent CA-2221202-A1 (CA)
Inventor: DOUTT KINGSLEY
IPC: B23K11/36
Filed: 1997-11-14
Abstract: A sensor and valving system for controlling the flow of liquid coolant in a welding electrode cooling circuit using coolant under pressure in supply and return lines.  The system is responsive to loss of coolant to the welding electrodes by pressure response upon loss of coolant detection, the coolant supply is cut off and effective lines are isolated allowing for repair or replaceable without additional loss of coolant from the system.
Patent CA-2225785-A1 (CA)
Title: Facing for drive or return cylinder or pulley of conveyor belt
Inventor: DAVIDTS EMMANUEL
IPC: F16D69/02
Filed: 1997-12-18
Abstract: Fitting for rotating drums or pulleys or carrying conveyor belts and all surfaces subjected to use by friction comprises elastic material (2) in which is incorporated porous ceramic components (4) which form projections on surface.
Patent CA-2230081-A1 (CA)
Title: Receiver
Inventor: MATSUTA TOYOHIKO
IPC: H04N5/44
Filed: 1998-02-20
Abstract: A receiver to receive a mixture of progressive and interlace video broadcast signals without being conscious of switching between the broadcasting systems. The receiver receives the mixed video broadcast signals having different formats, converts received video signals to video signals having a different signal format from the signal format of the received video signals. The receiver simultaneously outputs the received video signals and the converted video signals. This allows the user to be unaware of any switching when the video input changes between the different broadcasting systems, by connecting a television set to either the interlace scanning system output or the progressive scanning system output of the receiver.
Patent CA-2230161-A1 (CA)
Title: Loudspeakers comprising panel-form acoustic radiating elements
Inventor: HARRIS NEIL
IPC: H04R1/00
Filed: 1996-09-02
Abstract: A panel-form loudspeaker (81) comprising a resonant distributed mode acoustic radiator having a periphery, a transducer (9) mounted to the radiator to excite distributed mode resonance in the radiator, and a frame (1) supporting the radiator, the transducer being coupled between the radiator and the frame to vibrate the panel to cause it to resonate to produce an acoustic output, characterised in that frame supports the radiator round its periphery and by resilient suspension means coupled between the frame and the radiator periphery.
Patent CA-2232244-A1 (CA)
Inventor: FARGEOT RAYMOND
IPC: A01G23/083
Filed: 1998-03-16
Abstract: A tree processing machine having a boom, a tree processor head carrying tree processing elements, and a rotator rotatably connecting the tree processing head to the end of the boom. The rotator has a casing, that is non-rotatably mounted from the end of the boom, and a support shaft that is mounted in the casing for rotation about its longitudinal axis relative to the casing and that supports the processor head at its lower end. Rotating means are provided on the rotator for rotating the support shaft relative to the casing. A first set of hydraulic lines extend from the boom to the casing and a second set of hydraulic lines extend from the support shaft to the processor head. Hydraulic flow paths extend through the rotator between the first and second sets of hydraulic lines.
Patent CA-2233865-A1 (CA)
Title: Apparatus and method for measuring an induced perturbation to determine a physiological parameter
Inventor: CARO RICHARD G
IPC: A61B5/022
Filed: 1996-10-02
Abstract: A monitor for determining a patient's physiological parameter includes a calibration device (110) configured to provide a calibration signal representative of the patient's physiological parameter. An exciter (202) is positioned over a blood vessel (220) of the patient for inducing a transmitted exciter waveform into the patient. A noninvasive sensor (210) is positioned over the blood vessel (220), where the noninvasive sensor (210) is configured to sense a hemoparameter and to generate a noninvasive sensor signal representative of the hemoparameter containing a component of a physiological parameter waveform and a component of a received exciter waveform. In this context, a hemoparameter is defined as any physiological parameter related to vessel blood such as pressure, flow, volume, velocity, blood vessel wall motion, blood vessel wall position and other related parameters. A processor (100) is configured to determine a relationship between a property of the received exciter waveform and a property of the physiological parameter. The processor (100) is connected to receive the calibration signal and the noninvasive sensor signal, and the processor is configured to process the calibration signal and the noninvasive sensor signal to determine the physiological parameter. In the preferred embodiment, the physiological parameter measured is blood pressure, however, the present invention can also be used to analyze and track other physiological parameters such as vascular wall compliance, strength of ventricular contractions, vascular resistance, fluid volum, cardiac output, myocardial contractility and other related parameters.
Patent CA-2234451-A1 (CA)
Title: Nozzle assembly having inert gas distributor
Inventor: SIMOES JOSE ANTONIO FARIA
IPC: F27D3/15
Filed: 1996-10-10
Abstract: A refractory nozzle assembly (1) is provided that effectively prevents the accumulation of alumina deposits around its upper edge where it receives a stopper rod. The nozzle assembly includes a refractory nozzle body (7) having an upper (9) and a lower portion (11). A bore (13) extends through both the upper and lower portions that has a receiving and a discharge end for receiving and discharging molten metal. An inert gas distributor (20) circumscribes the upper portion of the nozzle body. A sleeve (40) of gas-obstructing refractory material covers the walls of the bore, and defines a seat portion at an upper portion of the bore. A metal sheath (50) substantially surrounds the outer surface of the upper portion (9).  Pressurized inert gas conducted to the upper, gas permeable portion of the nozzle body by the gas-distributing assembly is guided by the gas-obstructing sleeve and the metal sheath so that it flows predominantly through the top edge of the upper portion. The resulting inert gas flow shields the seat portion of the bore from ambient oxygen, thereby preventing the accumulation of alumina deposits on the seat portion that can interfere with the ability of the stopper rod to control the flow of molten metal.
Patent CA-2237322-A1 (CA)
Title: Emulsion polymere aqueuse
Inventor: VIETJE GERRIT
IPC: C08L97/02
Filed: 1996-11-13
Abstract: On décrit une émulsion d'un copolymère d'un monoxyde de carbone et d'un composé alcénique, dispersé dans un diluant aqueux. On décrit également une composition de résine durcissable sous la forme d'une émulsion huile dans l'eau comprenant un copolymère d'un monoxyde de carbone et d'un composé alcénique, ainsi qu'un agent de durcissement. On décrit encore un procédé de production d'un stratifié de bois, consistant à appliquer cette composition de résine durcissable sur des parties de bois du stratifié, à assembler ces parties de manière à ce que la composition de résine durcissable soit placée entre des parties de bois adjacentes, et à durcir ladite résine de sorte qu'après durcissement, celle-ci colle l'une à l'autre les parties de bois adjacentes.
Patent CA-2239120-A1 (CA)
Title: Corrosion inhibitors for cement compositions
Inventor: INCORVIA MICHAEL J
IPC: C23F11/14
Filed: 1996-11-27
Abstract: Compositions and methods relating to cementitious compositions are provided.  The addition of an amidoamine that is the reaction product of polyalkylenepolyamines and short-chain alkanedioic acids or reactive derivatives thereof to cementitious compositions has been found useful in inhibiting the corrosion of ferrous metal articles in contact with said composition. The amidoamine is advantageously employed in combination with a hydrophobe compound that enhances corrosion inhibition. The invention also provides aqueous emulsions which contain the amidoamine, one or more hydrophobes, and an emulsifier for the hydrophobe.
Patent CA-2239584-A1 (CA)
Inventor: ORD MICHAEL JOHN
IPC: A47L5/22
Filed: 1996-12-04
Abstract: A suction cleaner comprises a primary cleaner (1) and an auxiliary cleaner (2) removably attachable to the primary cleaner (1). The auxiliary cleaner (2) has a handle (13) which, when the auxiliary cleaner (2) is attached to the primary cleaner (1), constitutes a handle (13) for the primary cleaner (1).
Patent CA-2239969-A1 (CA)
Inventor: FISHPAUGH JEFFREY R
IPC: G01N33/53
Filed: 1996-12-16
Abstract: Des immuno-essais et des réactifs permettant de mesurer la teneur en plomb dans un échantillon d'essai au moyen de la quantification du porphobilinogène utilisent des anticorps préparés avec des composés représentés par les formules (I) et (II) dans lesquelles X et Y sont des groupes de liaison constitués de 0 à 2 hétéroatomes et de 0 à 8 atomes de carbone liés à un porteur immunogénique P qui est de préférence de l'albumine de sérum bovin. L'invention concerne également la synthèse de traceurs de fluorescéine dont la structure est représentée par les formules (V) et (VII) dans lesquelles A et C sont des groupes de liaison constitués de 0 à 2 hétéroatomes et de 0 à 8 atomes de carbone liés à une fraction détectable Q qui est de préférence de la fluorescéine ou un dérivé de fluorescéine.
Patent CA-2239997-A1 (CA)
Title: A centrifuge apparatus
Inventor: HOLM NIELS ERIK
IPC: B01D21/26
Filed: 1996-12-06
Abstract: A centrifuge apparatus which comprises a container (10) including a cylindrical member (11) with a lower rim and a piston member with a tubular piston rod (12). A supporting turntable (1) with a first gripping means (27) releasably grips the lower rim when the container (10) is placed thereon, said supporting turntable (1) being connected with a first activating means (5) for rotating the turntable (1) with the container (10) about the central axis thereof. A rotatably journalled piston activating mechanism activates the piston (12) by a second activating means (21) and is provided with a second gripping means (13) for releasably gripping the piston rod (12). The first gripping means (27) enters into a locking engagement with the inner side of the cylindrical member (11) upon activation of a third activating means (8) when the container (10) is placed on the turntable (1). The second gripping means (13) enters into a locking engagement with the piston rod (12) upon activation of a fourth activating means (15).
Patent CA-2240290-A1 (CA)
Title: Drilling fluid loss prevention and lubrication additive
Inventor: RUSSEL GEORGE W
IPC: E21B21/00
Filed: 1996-12-10
Abstract: A method of preventing or controlling the loss of well drilling fluid into the pores and fractures of subterranean rock formations by the addition of resilient graphitic carbon particles to the drilling fluid in sufficient amounts to plug the pores and fractures. The graphitic carbon material reduces loss of circulation, lowers torque and drag, prevents casing wear while drilling, and provides a new method for the controlled release of graphite at extreme pressure. The material is non-toxic and imparts the well-known lubricating properties of graphite without contributing to surface sheen development under US EPA offshore cuttings discharge rules.
Patent CA-2242066-A1 (CA)
Title: Rotary contact assembly for high ampere-rated circuit breakers
Inventor: BAUER ROLF-DIETER
IPC: H01H73/04
Filed: 1998-06-25
Abstract: A circuit breaker rotary arm for movable contacts is used within a plurality of single pole circuit breakers ganged together to form a single multi-pole circuit breaker. To provide uniform contact wear among the associated circuit breaker contacts, a rotor carrying a pivot of the rotary contact arm is slotted to automatically position the rotary arm supporting the movable contacts to allow for changes in the geometry of the contacts while maintaining constant contact compressive forces. The individual circuit breakers connect with the central operation mechanism by means of a single pin.
Patent CA-2245410-A1 (CA)
Title: Triple action pumping system
Inventor: STUEBINGER LON A
IPC: F04B47/10
Filed: 1998-08-20
Abstract: The present invention relates to an apparatus and method for selectively lifting produced fluid, including produced hydrocarbons and a portion of produced water, to a ground surface and for multiplying a hydrostatic head of a column of the produced fluid into a magnified injection pressure for injecting, without lifting to the ground surface, the remaining produced water, subsurface, in a subterranean well.
Patent CA-2246449-A1 (CA)
Title: Optical film with increased gain at non-normal angles of incidence
Inventor: STOVER CARL A
IPC: G02B5/30
Filed: 1997-02-28
Abstract: An optical film is provided which exhibits increased gain at non-normal angles of incidence and which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
Patent CA-2249044-A1 (CA)
Title: Relevance-enhanced scrolling
Inventor: NIELSEN JAKOB
IPC: G06F3/0485
Filed: 1998-09-29
Abstract: A graphical user interface enhances user information when scrolling through a document by determining the amount of relevant information at a particular scrolling location and changing one or more user perceptible system attributes such as color, sound or object displayed to reflect the amount of relevant information. In one approach, a <RELEVANT> tag or marker indicates relevance. Alternatively, adding an attribute to an existing HTML tag such as <STRONG> can indicate relevance. Ifinformation received from a search in response to a query contains no relevance indications, relevance markers are added locally.
Patent CA-2250111-A1 (CA)
Inventor: GRAHAM MICHAEL WAYNE
IPC: C12N15/82
Filed: 1997-03-27
Abstract: The present invention is directed to the genetic transformation using multiple genetic sequences, wherein one of said genetic sequences encodes a polypeptide possessing excision activity, specifically a site-specific recombinase activity linked to a transgene unit and the use of this genetic construct in the removal of transgenes therefrom. The present invention provides the means to produce genetically-transformed organisms, in particular plants, in which selectable marker genes have been removed, thereby facilitating multiple sequential genetic transformation events using the same selectable marker gene. Accordingly, the invention provides the means for regulating transgene expression in genetically-manipulated organisms, for example to promote differentiation, de-differentiation, or any unidirectional developmental shift of a target cell which requires the time-specific expression of a particular gene. The invention is particularly suited to the promotion of specific organogeneses in plants using organogenesis-promoting transgenes, wherein the organs which subsequently develop in said plants are genetically transformed with a desired gene but lack organogenesis-promoting transgenes.
Patent CA-2250662-A1 (CA)
Title: Metal and fiberglass cleaning and polishing article
Inventor: WILE RAYMOND G
IPC: B08B3/10
Filed: 1998-10-19
Abstract: An abrasive metal and fiberglass cleaner and polish article comprises a substrate presenting an abrasive surface and being capable of absorbing and retaining a fluid, and a metal and fiberglass cleanser absorbed in the substrate, the cleanser being an oil-in-water emulsion comprising a solvent, a surfactant, an oxidation removing agent, an emulsifier, and a carrier, whereby cleansing action is achieved by the emulsion, and abrasive cleansing action is achieved by the abrasive surface of the substrate. The substrate can comprise a cloth-like towel. A plurality of such towels are packaged into a re-sealable, flexible, vinyl pouch, removed one at a time, as necessary, to accomplish the complete cleaning task.
Patent CA-2252734-A1 (CA)
Title: Weather strips in particular for window and door frames and the like
Inventor: CITTADINI PAOLO
IPC: E06B7/23
Filed: 1996-04-30
Abstract: The invention relates to a weather strip in particular for window and door frames and the like comprising a base portion (2) arranged to be engaged in a respective anchoring area (3) of a first bearing frame (4); a head portion (5) arranged to act against an abutment area (6) associated with a second supporting frame (7); a band of magnetic material (8) operatively associated with said head portion; and an intermediate connecting portion (9) between said base and head portions. The intermediate portion (9) in section comprises a single fillet-like element having at least one unstraight portion (9a), said fillet-like element being able to bend and extend so as to move the head portion (5) along any direction from a rest position to a plurality of operating positions located at a given distance from said rest position.
Patent CA-2253364-A1 (CA)
Title: Selection and/or enhancement of resident microorganisms in the gastrointestinal tract
Inventor: HENRIKSSON KARL ANDERS OLOF
IPC: A23L29/20
Filed: 1997-03-20
Abstract: Improved method of enhancing a population of one or more target microorganisms in the gastrointestinal tract of an animal, the improvement comprising providing to the animal a selected modified or unmodified resistant starch or mixtures thereof, such that the one or more microorganisms will selectively utilise the starch and/or increase in number and/or activity in the gastrointestinal tract, either uniformly throughout the gastrointestinal tract or at specific site or regions.
Patent CA-2256642-A1 (CA)
Title: A process for preparing polymers
Inventor: KEMPNER JAMES SZKOLNICK
IPC: C08F2/24
Filed: 1998-12-17
Abstract: A process for preparing polymers is disclosed. The process utilizes non-cylindrical channels for polymerization.
Patent CA-2256707-A1 (CA)
Title: Crystalline polypropylene, process for preparing the same, polypropylene composition, and thermoformed article
Inventor: KIOKA MAMORU
IPC: C08F4/651
Filed: 1997-05-27
Abstract: The present invention presents crystalline polypropylenes that contain components insoluble in 64°C decane that satisfy the following characteristics (1) to (5) and are excellent in hardness and rigidity, high in melt tension, and excellent in molding properties, process for preparing such crystalline polypropylenes, and polypropylene compositions and thermoformed products that contain such crystalline polypropylenes.   (1) The intrinsic viscosity (.eta.) (in 135°C decalin) is 0.5 to 10dl/g.   (2) The molecular weight distribution (Mz/Mw) as determined by gel permeation chromatography (GPC; solvent: o-chlorobenzene, measurement temperature: 140°C) is 5 or more.   (3) The pentad isotacticity (mmmm percentage), which is a stereoregularity index determined by the measurement of the 13C-NMR spectrum, is 98% or more.   (4) The D value, determined using formula (1) below from the loss tangents, tan.deltaØ05 and tan.delta.10 measured at the frequencies, 0.05rad/sec and 10rad/sec respectively by a melt viscoelasticity measuring device under a temperature of 230°C and constant strain, and said loss tangent measurement frequencies, is 4.0 or more.       (5) The molecular weight distribution (Mw/Mn) as determined by gel permeation chromatography (GPC; solvent: o-dichlorobenzene, measurement temperature: 140°C) is 6.0 to 20.      It is preferable for the number-average molecular weight Mn of the components insoluble in 64°C decane to be 25000 or more.
Patent CA-2256764-A1 (CA)
Title: Process for the recovery of precious metal values from aqueous ammoniacal thiosulfate leach solutions
Inventor: VIRNIG MICHAEL J
IPC: C22B11/08
Filed: 1997-05-28
Abstract: The process of recovering precious metal from ores containing precious metals, such as gold and silver, from an aqueous ammoniacal thiosulfate leach solution to provide a significant practical and economical process for the recovery of gold or silver. After leaching of the ore with an aqueous ammoniacal thiosulfate solution, the leach solution is contacted with a precious metal extraction reagent to extract the precious metal values from the leach solution, after which the precious metal values are stripped from the extraction reagent to form a concentrated solution of the precious metal values from which the precious metals may be recovered by conventional methods such as electrolysis. The extraction reagents are those having guanidyl functionality or a quaternary amine functionality mixed with a weak organic acid such as a phenol. In the process, novel thiosulfate complexes of the precious metals are formed with the guanidyl or the quaternary amine extractants.