baber/WOPTO huggingface dataset:
Patent CA-2247794-A1 (CA)
Title: Gray-scale driver for fixed-intensity electronic display
Inventor: VINCENT MARC
IPC: G09G3/06
Filed: 1998-09-25
Abstract: A method and a driver are provided for enabling a fixed-intensity electronic display, such as a BDVFD, to produce multiple levels of intensity or gray-scale on a pre-pixel basis. This is achieved by sequencing several fields at a rate that is at least double and preferably several times the normal minimum refresh rate set for the display.
Patent CA-2247994-A1 (CA)
Inventor: BOGUE B ARLIE
IPC: A61K9/00
Filed: 1998-09-23
Abstract: A novel delivery system combines ibuprofen and polyoxyethylene/polyoxypropylene block copolymer ingredients to produce particles containing particulate ibuprofen and a eutectic mixture of the ingredients.
Patent CA-2251190-A1 (CA)
Title: Procede et dispositif pour le scellement d'une puce de circuit integre
Inventor: NISHINO KENICHI
IPC: H01L21/56
Filed: 1998-02-02
Abstract: L'invention concerne un procédé et un dispositif pour sceller une puce de circuit intégré, qui permettent d'éliminer les risques de scellement imparfait en assurant de manière fiable le dépôt d'un agent de scellement à la surface supérieure d'un substrat de fixation. Selon le procédé, avant d'introduire l'agent de scellement (17), on ménage un premier espace (h1) entre une buse d'injection (15) et le substrat (13) où vient se fixer la puce de circuit intégré (12), laquelle sera scellée par l'agent de scellement (17) introduit au moment où un second espace (h2) plus important que le premier espace (h1) est ménagé entre la buse (15) et le substrat (13). Lorsque l'agent de scellement (17) est mis en contact de manière fiable avec la surface supérieure du substrat (13), la puce de circuit intégré (12) est scellée.
Patent CA-2251483-A1 (CA)
Title: Improved distribution of dilution liquor to the discharge of a cellulose pulp digester
Inventor: BECHARD GRANT E
IPC: D21C7/14
Filed: 1998-10-26
Abstract: In a pulp treatment vessel such as a kraft pulp continuous vertical digester a cellulose slurry is caused to flow in the vessel interior in a flow path. A substantially annular void is formed at at least one point along the flow path, and dilution or treatment liquor is introduced into the substantially annular void so that the liquor is substantially uniformly distributed about the periphery of or into the slurry. The annular void may be formed by a step out in the vessel, and the uniform introduction of dilution liquor may be accomplished utilizing one or more openings, such as a plurality of openings substantially evenly spaced around the substantially annular void, e.g. using a screen surface. The screen surface may be substantially vertical or conical.
Patent CA-2252286-A1 (CA)
Title: Reversible interlocking field drain panel
Inventor: DITULLIO ROBERT J
IPC: E02B11/00
Filed: 1998-10-30
Abstract: A first molded polymer field drain panel is made from a moldable polymer sheet material and has an elongated chamber with an arched-shape, a first end, a second end and transverse strengthening ribs protruding outwardly therebetween. The elongated chamber has a smaller transverse strengthening end rib, a transverse strengthening end rib and a smaller transverse strengthening intermediate rib.  The smaller transverse strengthening end rib is molded at the first end shaped for being embracingly overlapped by a corresponding transverse strengthening end rib of a corresponding elongated chamber of a second molded polymer field drain panel.  The transverse strengthening end rib is molded at the second end for overlapping a corresponding smaller transverse strengthening end rib of the corresponding elongated chamber of the second molded polymer field drain panel. The smaller transverse strengthening intermediate rib is molded between the first end and the second end of the first molded polymer field drain panel for being embracingly overlapped by the corresponding transverse strengthening end rib of the corresponding elongated chamber of the second molded polymer field drain panel upon severing removal of at least the transverse strengthening end rib that is molded at the second end of the first molded polymer field drain panel.
Patent CA-2253962-A1 (CA)
Title: Method and device to reduce the peak factor of digital radio or television broadcasting signals
Inventor: PAVY JEAN LUC
IPC: H04B1/04
Filed: 1998-11-12
Abstract: The disclosure relates to digital radio broadcasting and television broadcasting systems. The digital signals provided by the modulator in quadrature at the frequency (F0) are applied to a processing circuit that carries out a conversion according to a determined relationship in order to reduce the peak factor (Fc) of the signals applied to the amplifier of the transmitter. The digital signals processed are applied to a band-pass filter centered on (f0) to attenuate the spectral components introduced by the processing operation.
Patent CA-2255832-A1 (CA)
Title: Extrudable thermoplastic elastomeric urea-extended polyurethane
Inventor: SLAGEL EDWIN C
IPC: C08G18/32
Filed: 1997-05-20
Abstract: An extrudable urea-extended thermoplastic polyurethane elastomer is formed from at least one aliphatic diisocyanate, at least one polyester glycol or polyether glycol, and at least one diamine curing agent.  At least one second diamine curing agent and/or at least one extrusion processing aid may be included. The polyurethane has high-temperature-resistance and is thus extrudable at high temperatures. The polyurethane is also strong and durable. The polyurethane can be liquid-cast, injection-molded, transfer-molded, sprayed, and extruded without changing either the chemistry or stoichiometry of the polyurethane.  The polyurethane may be used for making vehicle air bags or other any application for thermoplastic urethanes which requires increased thermal stability.
Patent CA-2256719-A1 (CA)
Title: Transmission of signaling data in an adjustable rate wireless communication system
Inventor: ZEHAVI EPHRAIM
IPC: H04J3/12
Filed: 1997-05-28
Abstract: A novel and improved method and apparatus for generating a constant data rate channel supporting signaling data transmission in an adjustable rate wireless communication system is described. In accordance with one aspect of the invention, the rate at which the channel operates may be adjusted based on the particular use and environmental conditions such that the appropriate data rate up to a maximum capability can be achieved. User data is then placed into frames (70-76) based on the selected rate. When available, signaling data is added into each frame in a predetermined amount. The resulting frame is encoded (36), repeated (38) and punctured (40) based on the selected rate and whether signaling data has been introduced, and transmitted via RF signals to the receive system.
Patent CA-2257598-A1 (CA)
Inventor: SANCHEZ VAZQUEZ BELISARIO
IPC: H01B5/08
Filed: 1998-12-29
Abstract: This invention relates to the manufacturing of a seven-wire symmetrical hybrid conductor (one hard copper alloy wire in the center - six hard ETP copper peripheral wires) in 24 and 26 AWG gauges that fulfills the SAE J-1678 and Ford specifications with regard to electrical resistance and breaking load, having an outside diameter proper for smooth thin wall insulation.
Patent CA-2257811-A1 (CA)
Title: An apparatus and method for controlling an ultrasonic transducer
Inventor: JAMESON LEE KIRBY
IPC: B06B1/02
Filed: 1997-06-24
Abstract: An apparatus (108) and method for controlling an ultrasonic transducer (107a) preferably including a signal generator circuit (502), a signal sensing circuit (504), a modulator circuit (506) and a bias circuit (508). The signal generator circuit provides a pulsed drive signal to the ultrasonic transducer. The signal sensing circuit senses the voltage (510) and current (512) of the drive signal. The modulator circuit provides a frequency control signal (516) and an energy control signal (514) to the control signal generator circuit corresponding to a detected phase difference between the sensed voltage and the sensed current of the drive (503) signal. The frequency control signal and energy control signal operated to adjust the frequency and energy level, respectively, of the drive signal. Within the transducer, a movable element in contact with a liquid is preferably positioned corresponding to the level of a do bias signal provided by the bias circuit. By adjusting the level of the do bias signal, the flow rate of the liquid is adjusted. By applying the drive signal to the transducer, the viscosity of the liquid is adjusted which establishes a second flow rate of the liquid.  When the frequency and energy level of the drive signal are changed, a third flow rate of the liquid is established.
Patent CA-2261123-A1 (CA)
Title: Fuel cell system for an electric vehicle
Inventor: VON HELMOLT RITTMAR
IPC: H01M8/00
Filed: 1997-06-30
Abstract: A fuel cell system is disclosed for an electric vehicle driven (at least in part) by fuel cells. The fuel cell system, which is preferably but not exclusively air-cooled, is built in in such a manner that the dynamic pressure of the relative wind drives the cooling system. A stack of fuel cells is preferably located at the cooler of the vehicle and the relative wind directly cools the individual fuel cells.
Patent CA-2263038-A1 (CA)
Inventor: TAMOSAITIS VICTOR
IPC: B05D1/10
Filed: 1999-02-25
Abstract: A process for application of a protective coating to a steel, concrete, or wooden structure so as to provide protection against corrosion, weathering, or other environmental damage in which the surface to be protected is heated to a temperature in a range of about 75°F to about 150°F after which a liquid thermoset primer is applied to the heated material in two stages. The first portion is solidified by heating and then coated with a second portion, forming an uncured liquid thermoset outer primer layer. A melted polymer powder layer is then applied by flamespraying over the uncured liquid thermoset primer layer, forming an intermediate polymer powder layer embedded in the uncured liquid thermoset primer layer. The intermediate melted polymer powder layer is then heated to a flow temperature of the polymer powder and a second layer of melted polymer powder is applied over the intermediate polymer powder layer, forming an outer melted polymer powder layer which then cools to form the final protective coating.
Patent CA-2265048-A1 (CA)
Inventor: WEEKS DON L
IPC: E21B47/01
Filed: 1999-03-08
Abstract: An apparatus and method for sampling downhole fluids comprising a tool (36) attached to a connector (34) that is locked into position within a pipe section (32) is disclosed. The pipe section (32) has a longitudinal slot (62) with first and second sides (78, 80). The pipe section (32) also includes a transverse slot (64) that extends perpendicularly from the first side (78) of the longitudinal slot (62) and a hole (66) that extends perpendicularly from the second side (80) of the longitudinal slot (62). The connector (34) is inserted into the hole (66) such that the connector (34) may be rotated between an insertion position and an operating position. The connector head ( 100) of the connector (34) is closely received within the longitudinal slot (62) such that when the connector (34) is in the operating position, the connector head (100) contacts the first side (78) of the longitudinal slot (62) to lock the connector (34) within the pipe section (32).
Patent CA-2267884-A1 (CA)
Title: Chlorine-free extreme pressure fluid additive
Inventor: WADE BARBARA A
IPC: C10M173/00
Filed: 1997-09-08
Abstract: The invention pertains to chlorine-free extreme pressure metalworking fluid additives and lies in the recognition of the improved hydrolytic stability of alkanoic acid esters of cyclohexane dimethanol and other esters embodying similar structures. The various derivatives which are effective as extreme pressure additives include those which fall within the generic description (I), wherein R1 through R4 are independently selected from the group hydrogen and C1-24 hydrocarbyl groups, and R5 and R6 are independently preferably selected from the group C3-6 hydrocarbyl groups.
Patent CA-2269506-A1 (CA)
Title: Procede de traitement d'une demence provoquee par le syndrome d'immunodeficit acquis
Inventor: BYMASTER FRANKLIN PORTER
IPC: A61K31/454
Filed: 1997-10-23
Abstract: La présente invention concerne un procédé de traitement d'une démence provoquée par le syndrome d'immunodéficit acquis (HIV) faisant appel à un composé de la formule (I).
Patent CA-2269599-A1 (CA)
Inventor: LE GALL MADELEINE
IPC: A61K9/00
Filed: 1997-10-21
Abstract: A device suitable for the topical delivery of aromatherapy oil to the body comprises a dressing which is impregnated with or otherwise includes an aromatherapy oil. Application of the dressing to the body results in transfer of the oil to the skin, whereupon the oil can be ingested transdermally. The dressing is preferably in the form of an adhesive skin patch which facilitates transfer of the oil over extended periods and avoids loss of oils by evaporation. The aromatherapy oil ideally comprises one or more essential oils blended with a carrier oil. The carrier oil not only assists in the penetration of the essential oil through the skin but also synergistically enhances the therapeutic effect of the essential oils.
Patent CA-2271283-A1 (CA)
Inventor: PATE BRIAN LEWIS
IPC: A61B5/00
Filed: 1997-11-13
Abstract: The invention relates to a medical parameter monitoring device which allows the monitoring of a plurality of medical parameters from a remote location.  The invention uses a central monitoring system (14) which transmits and receives data parameters via RF from remote patient monitors (16). The monitoring system utilizes a digital spread spectrum RF transceiver between the central monitoring system (14) to the remote minitors (16). Forward error correcting, frequency hopping, and spread spectrum communications are employed to provide accurate transmission of data for a plurality of physiological parameters. Transmitted data can be automatically registered into storage in the central monitoring system (14).
Patent CA-2274198-A1 (CA)
Title: Management of a network element using managed objects in a digital communications network
Inventor: SCHABERNACK JOERG
IPC: H04L12/24
Filed: 1999-06-09
Abstract: Network elements of a digital communications network, for example of an SDH network (SDH = Synchronous Digital Hierarchy), are managed by controllers using managed objects. To permit fast access to managed objects, a simple circuit with a controller (FLT), a database (DB), and a temporary memory (MEM) is proposed. The controller carries out a method of managing the network element wherein in response to requests (RQ), the objects are stored into the memory and individual objects (MO*) are swapped out to make room for new data according to predeterminal criteria, which specify, for example, the maximum residence time of the object in the memory. At least these objects are transferred to the database (DB). Only upon reception of a request (RQ*) for access to an object (MO*) which is no longer in the memory (MEM) will this object (MO*) be read from the database and transferred back into the memory. The controller manages the network element in response to the requests by accessing the memory and using the objects stored therein.
Patent CA-2275457-A1 (CA)
Inventor: BARTON KENNETH A
IPC: B24B21/00
Filed: 1997-12-18
Abstract: A surface polishing machine (10) for polishing a workpiece (22), including a body member (18) adapted to be positioned adjacent the workpiece (22) and having first and second pivot means (44, 46), a pair of polishing arms (14, 16), each pivotable on a pivot means, each arm having a first end (24, 26) adapted to receive a surface grinding means (34) and a second end (28, 30), an actuating means (66, 68) connected to the respective second ends of the first and second polishing arms (14, 16) for moving the arms about the first and second pivot means (44, 46) from positions adjacently spaced from the workpiece to respective treatment positions thereby producing a grinding pressure at the surface grinding means (34), a rolling support member (78) for pivotably supporting and horizontally transferring the surface polishing tool to predetermined polishing positions, a base (88) supporting the rolling support member, and being movable with respect to the workpiece (22) along an axis, the base (88) including at least one guideway (128, 130) extending through the base and a support table (132) including at least one flanged support rail (135, 137) configured to cooperatively mate and slidingly engage with the at least one guideway (128, 130) to provide linear positioning of said base (88).
Patent CA-2275460-A1 (CA)
Title: Data navigator interface
Inventor: AGASSI SHAI
IPC: G06F17/30
Filed: 1997-08-13
Abstract: In the figure, a hypertext browser displays hypertext pages and indicates draggable elements (56, 58) and drop targets (52) on the page being viewed. The browser detects when a user selects a draggable element and drops the draggable element within a drop target. The browser and/or the server to which it is connected examine a class relations matrix having entries for intersections of draggable element references and drop target references in which a matrix entry at an intersection of the draggable element and drop target is identified and used for performing an action which is a function of the matrix entry.
Patent CA-2277380-A1 (CA)
Title: A method for regulating fluid pressure
Inventor: HENNEL EWALD
IPC: F04D15/00
Filed: 1999-07-15
Abstract: Specified is a method for regulating the pressure of a fluid, moved through a pipe system with at least one consumer by a pressure generator, driven with an electric motor. In order to ensure a sufficient supply for all consumers on a continuous basis, the motor speed for adjusting the pressure in the pipe system (1) is regulated by way of a controller (9). At least one control curve reflecting the fluid pressure in the pipe system (1) in dependence on the amount of the fluid flowing through or the flow speed of the fluid is impressed into the controller. The control curve extends with a uniform curvature between a predetermined pressure minimum and a predetermined pressure maximum, such that in the direction of increasing pressure, it is located above a straight line connecting the points of minimum pressure and maximum pressure and is at the greatest distance from this straight line in the center region between the two points.  The controller (9) is supplied continuously with an electrical variable as actual value, which is proportional to the amount of fluid flowing through or the flow speed of the fluid. If the actual value deviates from the desired pressure value, specified according to the corresponding control curve (R), the motor speed is adjusted so as to compensate for this.
Patent CA-2278765-A1 (CA)
Inventor: HAHN STEVE SYNG-HI
IPC: B26B21/54
Filed: 1998-02-26
Abstract: A strenghtened blade for a shaving razor including a generally flat blade member having a width along a width axis (W), a length along a transverse length axis (L), and smaller dimensions along a thickness axis (T) that is normal to both the width axis and the length axis, the blade member having a nonlinear front cutting edge (13) defined by a plurality of waves (15) having crests and valleys extending above and below the length axis in a direction that is parallel to the thickness axis.
Patent CA-2279192-A1 (CA)
Title: Process for bonding fibrous web
Inventor: SHALTRY MICHAEL J
IPC: D06M15/693
Filed: 1997-01-28
Abstract: A process for forming a fibrous web in the presence of a water-absorbent material, such as a superabsorbent, in which a web of non-water-absorbent fibers and water-absorbent materials is formed and then contacted with an aqueous solution of a binder such as latex in an amount of 5 wt.%, or an uncured binder.
Patent CA-2282783-A1 (CA)
Title: Two-resonance helical antenna capable of suppressing fluctuation in electric characteristic without restriction in size of a helical coil
Inventor: HAMAARATSU IWAO
IPC: H01Q5/10
Filed: 1999-09-17
Abstract: In a two-resonance helical antenna, a single helical coil (3) is made of a conductive material and extends in one axis direction. An annular conductor portion (5) is arranged around the helical coil in a coaxial fashion to be spaced and insulated from the helical coil. The annular conductor portion is positioned 1n the middle of the helical coil in the one axis direction.
Patent CA-2283718-A1 (CA)
Inventor: WOLF SIEGFRIED
IPC: A61P31/04
Filed: 1998-04-02
Abstract: Cefdinir in the form of a salt with dicyclohexylamine, a process for its production and its use in the purification of impure cefdinir.
Patent CA-2289777-A1 (CA)
Title: Detergent compositions
Inventor: SARNAIK KHIZAR MOHAMED KHAN
IPC: C11D1/62
Filed: 1997-08-05
Abstract: A detergent composition comprising a soil dispersant polymer, a non-bis AQA surfactant and a bis-alkoxylated quaternary ammonium (bis-AQA) cationic surfactant, wherein the weight ratio of the bis-AQA to the soil dispersant polymer is in the range of from 1:11 to 1:14.
Patent CA-2290449-A1 (CA)
Inventor: CESBRON JEAN
IPC: E06B3/48
Filed: 1999-03-19
Abstract: The invention concerns a panel (7) specially designed for a roll-up door (2) with ceiling retraction and vertical displacement such a typical garage door, said panel being designed so as to be mounted on at least another similar panel (7) pivoting about an axis parallel to the normally horizontal longitudinal direction (D) when the panel is mounted in situ. Said panel comprises first and second sidings (16, 17) defining its parallel large outer surfaces (18, 19) made rigidly integral with each other; at least a longitudinal edge (14) with continuously decreasing thickness from the panel large surfaces (18, 19) up to said edge free longitudinal end (21) having in transverse cross section a generally pseudo-triangular profile, said spandrel panel total thickness being less than 3 cm.
Patent CA-2290452-A1 (CA)
Title: Device for positioning at automatic fuelling of vehicles
Inventor: CORFITSEN STEN
IPC: B25J9/10
Filed: 1998-05-26
Abstract: The invention relates to the automatic fuelling of vehicles, primarily cars and comprises a robot. The invention is characterised in that the positioning system includes an optical sensor means (23) arranged adjacent the robot (2) and functioning to detect optically the position of the fuel-tank flap (12) of a vehicle parked for fuelling, relative to the rest position of the robot head (3), and to deliver to a robot computer (29) a signal relating to said relative position. The invention is further characterised in that the computer (29) is programmed to bring the opening device (11) into abutment with the fuel-tank flap (12) and to open said flap with the aid of a predetermined movement plan, and in that the sensor means (23) is adapted to detect the position of the orifice of the fuel-tank pipe or of the adapter (10) relative to the current position of the robot head and to send to the computer (29) a signal relating to said relative position.
Patent CA-2292734-A1 (CA)
Inventor: HUMPAL-WINTER JEAN
IPC: A61K31/59
Filed: 1998-06-04
Abstract: A method of moderating transplant rejection in a transplant recipient comprising administering a dose of vitamin D compound effective to prevent transplant rejection is disclosed. Preferably, the recipient's susceptibility to opportunistic infections has not been compromised. Also preferably, the recipient has not suffered bone demineralization.
Patent CA-2294387-A1 (CA)
Title: Method and apparatus for forming fluid tight seal between coupling body and insert
Inventor: MEYER DAVID W
IPC: F16L37/12
Filed: 1998-06-22
Abstract: A method and apparatus for forming a fluid tight seal between a coupling body (22) and an insert (24) wherein the coupling body has a seal element (66) disposed circumferentially about an inner wall for fluid tight engagement with an outer wall of an insert (24) upon insertion of the insert (24) into the coupling body (22).