baber/WOPTO huggingface dataset:
Patent CA-2158373-A1 (CA)
Title: Medical devices and materials having enhanced magnetic images visibility
Inventor: YOUNG STUART W
IPC: A61L31/00
Filed: 1994-04-12
Abstract: Catheters and other medical devices include a non-metallic member having paramagnetic ionic particles fixedly incorporated therethrough in order to provide enhanced detectability when viewed by magnetic imaging regardless of the orientation of the non-metallic member in the magnetic field. Catheters are usually formed from polymeric , tubing, and the paramagnetic ionic particles are usually formed from paramagnetic ions incorporated with water or other proton-donating fluid into carrier particles, such as zeolites, molecular sieves, clays, synthetic ion exchange resins, and microcapsules. Catheters and other medical devices include a non-metallic member having small iron and/or superparamagnetic particles fixedly incorporated therethrough or thereover in order to provide enhanced detectability  when viewed by magnetic imaging. Catheters are usually formed from polymeric tubing, and the iron and/or superparamagnetic particles at or near the surface of the catheter interact with the water protons of the surrounding patient's body to provide image enhancement regardless of the orientation of the polymeric or other non-metallic material in the magnetic field.
Patent CA-2158935-A1 (CA)
Title: Methods for preserving recombinant viruses
Inventor: HERRMAN STEVEN M
IPC: A61K35/76
Filed: 1994-10-07
Abstract: Methods for preserving an infectious recombinant virus for subsequent reconstitution are provided. Within one aspect, the method comprises the steps of (a) combining an infectious recombinant virus with an aqueous solution comprising a saccharide, a high molecular weight structural additive, a buffering component and water to form an aqueous suspension, thereby stabilizing the infectious virus; (b) cooling the aqueous suspension containing the virus to a temperature below the glass transition state temperature or below the eutectic point temperature of the formulation; and (c) removing water from the cooled aqueous suspension by sublimation to form a lyophilized virus having less than 10% water by weight of the lyophilized virus, the virus being capable of infecting mammalian cells upon reconstitution.
Patent CA-2164451-A1 (CA)
Title: Display stand erectable from shipping container
Inventor: SMITH MICHAEL J
IPC: A47F5/11
Filed: 1995-12-05
Abstract: A foldable display stand includes a generally box-shaped housing having an open end and a collapsible base for supporting the housing at an elevation above ground. The base includes a plurality of consecutive sections each having interconnected front, back and side walls displaceable relative to one another between their erected positions in which the respective section has a tubular shape, and their collapsed positions in which the walls lie flat against each other. These sections are connected to one another for movement between their unfolded positions in which they form continuations of one another, and their folded positions in which they are situated adjacent one another. One of such sections is mounted on the housing at its open end for pivoting between one position in which all of the sections are situated outside the housing, and another position in which all of the sections are located within the housing.
Patent CA-2165255-A1 (CA)
Inventor: KIEMENEIJ FERDINAND
IPC: A61M25/16
Filed: 1995-12-14
Abstract: A preshaped tubular catheter for percutaneous transradial approach to catheterization, comprises a distal bridge shaped portion 1 having a distal arch defining a primary curve (3), a top defining a secondary curve (5), and a proximal arch defining a tertiary curve (7). The proximal arch is connected to a straight shaft (9). The shaft (9) is stiff and the bridge shaped portion has a flexibility extending at least up to and including the primary curve (3) and a stiffeness extending at least up to and including the tertiary curve (7). <IMAGE>
Patent CA-2165939-A1 (CA)
Title: Fire resistant fabrics with a flocked nylon surface
Inventor: ANTON ANTHONY
IPC: D04H11/00
Filed: 1994-06-15
Abstract: Spunlaced fabrics from poly(p-phenylene terephthalamide) or mixture thereof with poly(m-phenylene isophthalamide) fibers having a specified flocked nylon surface can be dyed or printed and the flock does not significantly reduce the fire resistance of the base fabric.
Patent CA-2166274-A1 (CA)
Inventor: GOSSELINK EUGENE PAUL
IPC: C11D17/00
Filed: 1994-02-10
Abstract: Compositions détersives comprenant des esters à coiffe terminale de sulfonate de propane et d'hydroxy éthane anioniques, éthoxylés ou propoxylés, de la formule NaO3SCH2CH2CH2-O(CH2CH2O)n-, aptes à être utilisés comme agents antisalissure. Ces esters contiennent en outre des unités de térephtalate, des unités d'oxy-1,2-alkylèneoxy (des unités d'oxyéthylèneoxy sont de préférence utilisées) ainsi que des unités de sulfoisophlatate.
Patent CA-2167937-A1 (CA)
Inventor: RING ROBERT S
IPC: B65H29/22
Filed: 1995-04-14
Abstract: La production de piles décalées de formulaires commerciaux s'effectue de manière continue (c'est-à-dire sans interruption) jusqu'à ce qu'un dispositif d'empliage vertical (13), dans lequel sont réceptionnés les formulaires (39), soit plein. Entre un séparateur (11) et le dispositif d'empilage (13), les formulaires sont automatiquement et continuellement dirigés vers la gauche ou vers la droite par rapport à une ligne médiane pour décaler les formulaires sous forme de groupes distincts respectivement formés d'au moins un formulaire. Ce décalage peut être effectué par deux bandes transporteuses angulaires comprenant des billes d'acier que des solénoïdes déplacent pour qu'elles s'associent ou non aux bandes transporteuses, et/ou par deux groupes de roues de déviation qui forment également un angle et qui sont remontées ou descendues pour respectivement ne plus toucher les formulaires ou être en contact avec ces derniers.
Patent CA-2170184-A1 (CA)
Title: Steerable rotary drilling systems
Inventor: BARR JOHN D
IPC: E21B47/18
Filed: 1996-02-23
Abstract: A steerable rotary drilling system has a bottom hole assembly which includes, in addition to the drill bit, a modulated bias unit and a control unit, the bias unit comprising a number of hydraulic actuators around the periphery of the unit, each having a movable thrust member which is hydraulically displaceable outwardly for engagement with the formation of the borehole being drilled. Each actuator may be connected, through a control valve, to a source of drilling fluid under pressure and the operation of the valve is controlled by the control unit so as to modulate the fluid pressure supplied to the actuators as the bias unit rotates. If the control valve is operated in synchronism with rotation of the bias unit the thrust members impart a lateral bias to the bias unit, and hence to the drill bit, to control the direction of drilling. Pulses transmitted through the drilling fluid as a result of operation of the bias unit are detected and interpreted at the surface, or at a different location downhole, to obtain information regarding the operation of the bias unit or other parts of the bottom hole assembly. Data signals from downhole sensors may be arranged to modify the control and operation of the bias unit in such manner that the data is encoded as pulses generated in the drilling fluid by the bias unit.
Patent CA-2172964-A1 (CA)
Title: Intervulcanized elastomer blends
Inventor: WANG HSIEN-CHANG
IPC: B60C1/00
Filed: 1994-09-26
Abstract: Intervulcanized compositions having improved curing efficiency are prepared by the free radical curing of a mixture of an ethylenically unsaturated diolefin polymer such as natural or synthetic rubber and a saturated or low unsaturation polymer such as an isobutylene/para-methylstyrene copolymer which contains functional groups pendant to the polymer chain. These functional groups contain an olefinic or vinyl double bond positioned alpha, beta to a substituent group which activates the double bond towards free radical addition reactions with the diolefin polymer. Preferred functionality includes benzylic ester functionality represented by structure (1), wherein R2 and R3 are indenpendently selected from hydrogen or C1 to C6 alkyl, and R4 is selected from hydrogen, C1 to C28 alkyl, aryl or C2 to C28 alkenyl.
Patent CA-2174985-A1 (CA)
Title: Wireless communication system
Inventor: LEVANON YOHANAN
IPC: H04B1/713
Filed: 1996-04-25
Abstract: A method of wireless communication among a plurality of stations in which each station communicates with all of the other stations over a cycle time divided into a plurality of communication sectors during each of which one of the stations transmits, including the step of changing the frequency of the transmission in accordance with a predetermined protocol, only at the end of a sector in which one of the stations transmits. Preferably, the frequency of transmission is reset to a given frequency in accordance with the protocol when none of the stations transmit over a predetermined period.
Patent CA-2176000-A1 (CA)
Title: System and method for precisely determining an operating point for an autonomous vehicle
Inventor: ALLEN WILLIAM E
IPC: G05D1/02
Filed: 1995-10-13
Abstract: A computer-based system (100) for precisely determining an operating point for a land-based vehicle includes a receiver (216) mounted on the vehicle for receiving navigation signals from a satellite-based positioning system (218), an odometer (230) for measuring distance travelled by the vehicle, a doppler radar (232) for measuring ground speed of the vehicle a solid-state rate sensing device (234) for measuring the heading rate of the vehicle, and a resolver (236) for measuring the steering angle of the vehicle. An extended Kalman filter (208) combines the measurements of these sensors (216, 230 232, 234, 230) to produce a highly accurate estimate of the vehicle's operating point. The operating point includes an estimated north position, an estimated east position, an estimated heading, an estimated heading rate, and an estimated speed.
Patent CA-2176863-A1 (CA)
Inventor: MEEKER BRIAN L
IPC: B32B5/26
Filed: 1996-05-17
Abstract: A glass-fiber-containing nonwoven polymer web is prepared by providing a nonwoven polymer web, applying a layer of glass fibers onto the nonwoven polymer web, and encapsulating the glass fibers into the nonwoven polymer web utilizing heat and pressure. Alternatively, a glass-fiber-containing polymer web is prepared by providing a first nonwoven polymer web, applying a layer of glass fibers onto the first nonwoven polymer web, superposing over the layer of glass fibers a second nonwoven polymer web, and laminating together the assemblage to encapsulate the glass fibers.
Patent CA-2179039-A1 (CA)
Inventor: MURAI SHUNJI
IPC: G06T1/00
Filed: 1994-12-13
Abstract: Disclosed is an apparatus for photographing the ground continuously from an airplane, and for recording the so photographed images in digital form on real time.      A three-line sensor camera comprising a forward-oblique line sensor, a vertical line sensor and a backward-oblique line sensor is on board. The three-line sensor camera has a gyro integrally connected thereto. Data of camera's attitude available from the gyro, data of digital land images available from the camera and data of airplane's position available from an airborne GPS are recorded and reproduced.      The camera is controlled with the aid of the gyro so that its optical axis may be held in a vertical direction at all times.
Patent CA-2179524-A1 (CA)
Title: Pneumatic fastener driving tool and an electronic control system therefor
Inventor: MOORMAN CHARLES J
IPC: B25C1/00
Filed: 1995-10-18
Abstract: An     electronically controlled pneumatic  fastener driving  tool. The tool is of the type   having   a   body  containing a  cylinder  with  a  piston/driver assembly   therein, a  firing valve actuable  to   introduce   high pressure air into the  cylinder to cycle  the piston/driver  assembly, a   manual   trigger, a safety trip, and an electronic  control system.   The electronic control system    comprises  a  remote solenoid  valve to actuate the firing  valve, a  microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the  remote  valve to cycle the tool, a battery to energize the  microprocessor  and   a rechargeable battery to energize the solenoid of the remote valve. The microprocessor   determines the mode of operation of the tool and may be designed to  provide two or more modes selectable by a mode selection switch.  The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.  The microprocessor may provide a timer to impose a time limit on the trigger, the safety trip, or both.  The electronic control system comprises a part of the tool itself.  The tool is provided with a generator which partially recharges the solenoid battery during each cycle of the tool.
Patent CA-2180052-A1 (CA)
Title: Method and means for compensating for row variable offsets in a large area solid state x-ray detector
Inventor: PETRICK SCOTT W
IPC: G01T1/20
Filed: 1996-06-27
Abstract: Row variable offsets in a large area solid state x-ray detector are compensated for, in accordance with the present invention. Initially, a calibration is performed to determine the row variable offsets. During normal operation, this offset is compensated for in a converting circuit.      The required signal range of the converting circuit is consequently reduced.
Patent CA-2184154-A1 (CA)
Title: Elastomeric Syringe Actuation Device
Inventor: MCPHEE CHARLES J
IPC: A61M5/142
Filed: 1995-03-03
Abstract: A syringe actuation device (10) comprises an elastomeric element (26) that is removably attachable to the outlet tip (14) of a syringe (12), and to a grip member (48) that allows the elastomeric element (26) to be pulled distally along the syringe bearer (16) to seat against the distal end of the syringe plunger (18). In first and second embodiments, the elastomeric element (26) is attached between a grommet (22) that fits around the outlet tip (14), and an end cap (24) that engages the distal end of the plunger (18). When the grommet (22) is seated around the outlet tip (14), and the end cap (24) engages the distal end of the plunger (18) with the plunger (18) in its withdrawn position, the elastomeric element (26) is stretched along the syringe (12), biasing the plunger (18) toward its inserted position. As the elastomeric element (26) restores itself to its unstretched configuration, it pushes the plunger (18) into the syringe barrel (16). In the first embodiment, the elastomeric element (26) comprises one or two elastic straps having first (52) and second (54) ends removably securured to the grommet (22), each strap (26) having an intermediate portion secured to an end cap (24).
Patent CA-2184385-A1 (CA)
Title: Composition for the treatment of lung disease
Inventor: DAVIES PHILIP
IPC: A61P31/04
Filed: 1995-03-07
Abstract: Disclosed are pharmaceutical compositions for the treatment of lung disease, and in particular Cystic Fibrosis, comprising a substituted azetidinone of general formula (I), which have been found to be potent elastase inhibitors and a (F)-actin shortening protein, such as gelsolin.
Patent CA-2186688-A1 (CA)
Title: Transmitter antenna diversity and fading-resistant modulation for wireless communication systems
Inventor: SOUSA ELVINO S
IPC: H04B7/06
Filed: 1996-09-27
Abstract: The present invention provides a bandwidth-efficient fading-resistant transmission scheme where a base station implements transmitter diversity using L antennas or L carrier frequencies or L time slots, regardless of the use of frame oriented power control. When the antennas or carriers are spaced sufficiently far apart, or when a different power is used for each power control frame, the transmission from each antenna or carrier or time frame undergoes independent fading. These transmissions are coordinated to mitigate the effects of Rayleigh fading and the mobile receiver can recover the entire L-dimensional transmitted vector as long as the signal energy of at least one coordinate is large enough. L-dimensional fading-resistant signal constellations are generated by maximizing a figure of merit for the Rayleigh fading channel. This scheme offers a significant performance improvement over a conventional single-antenna or single-carrier narrowband BPSK scheme when coding is ineffective due to slow fading. When there is background white Gaussian noise, the fading-resistant scheme has a significant energy savings advantage over an uncoded BPSK scheme, for a given bit error rate. In the forward link of a cellular network, where cochannel interference is the dominant source of noise, the fading-resistant scheme results in a significant capacity increase over uncoded BPSK, for a given bit error rate.      Both coherent and differentially coherent systems are disclosed.
Patent CA-2189621-A1 (CA)
Inventor: CONVENTS DANIEL
IPC: C11D3/37
Filed: 1996-11-05
Abstract: A detergent composition with excellent colour care properties.  The detergent composition comprises a dendritic macromolecule.
Patent CA-2191187-A1 (CA)
Title: Rising seat for seating including toilets
Inventor: PAXON JOHN BERNARD
IPC: A47K13/10
Filed: 1994-05-24
Abstract: A rising seat that can be fixed permanently to or removable from seating or toilets. Comprising a top rising section pivoted on to a bottom section against the variable resilience of at least one torsion spring. If a number of springs are utilised one or more spring can be selected to alter the ease at which the top section can be lowered on to the bottom section to suit the weight of the user, and which can be moved within the confines of the rising seat to a neutral or non operable position. The removable version can be fixed by releasable fixings and can be lowered and easily carried.
Patent CA-2192622-A1 (CA)
Inventor: ROST DAVID P
IPC: G01S13/934
Filed: 1996-12-11
Abstract: In accordance with the principles of the invention, a surveillance radar is provided with a rotating, frequency squinting, end-fed slotted array antenna, which is caused to transmit a plurality of different carrier frequency pulses for successively illuminating specific antenna beam positions during rotation of the antenna. Upon reception of each radar signal return, a signal processor responsive to the frequency of each transmitted pulse and the mechanical pointing angle of the antenna at the time of transmission of each pulse, will determine the frequency dependent squint angle for the transmitted pulse and combine that angle with the instantaneous mechanical pointing angle of the antenna at the time of the pulse transmission, to determine the actual beam pointing angle for each pulse at the time of its transmission. A video signal processor groups together the pulse signal returns from physically adjacent ones of the actual beam pointing angles for common processing, i.e, integration, for improving the target detection performance of the radar system.
Patent CA-2194194-A1 (CA)
Title: Apparatus for producing and blasting sublimable granules on demand
Inventor: OPEL ALAN E
IPC: B24C11/00
Filed: 1995-06-28
Abstract: A granulator and delivery system for sublimable CO2 granules (16) has working edges (38) rotatably supported for defining a cutting surface (40); a driver (48) for powering the working edges; a feeder (56) for advancing solid CO2 into contact with the working edges, the working edges removing the granules from the solid CO2; a duct (30) having an outlet (31), the granules being directed from the block to flow from the outlet; an eductor (20) having a material inlet (32), a gas inlet (26) and an eductor outlet (24), the material inlet being connected to the outlet; a delivery control valve (28) fluid connected between the gas inlet and a source of high pressure gas; a controller (54) responsive to an external signal (82) for: activating the driver, the feeder and the delivery control valve for delivery of granules from the duct in response to activation of the demand signal; deactivating at least one of the driver and the feeder in response to either deactivation of the demand signal for halting production of the granules or for preventing consumption of all but a predetermined portion of the solid CO2; and reversing the feeder for permitting loading of a fresh quantity of solid CO2 into the granulator in response to a predetermined advance of the feeder, and resuming operation of the granulator once the fresh quantity is loaded. Also disclosed is a method of producing and blasting sublimable dry ice granules.
Patent CA-2196042-A1 (CA)
Title: System and method for purchasing expirationless options
Inventor: DAUGHTERY VERGIL L III
IPC: G06Q30/08
Filed: 1995-05-22
Abstract: A system and method for determining the price of an expirationless American option over a broad variety of securities and issuing the correct bid and ask prices for the same. Data concerning initial margin requirements, contract value of the option, expiration date (if applicable) of the underlying security, number of contracts required, exchange fees, commission, residuals, and all open positions is accumulated and stored in computer memory (12). When it is desired that an option be bought or sold, information identifying the contract C, the type of option, either call or put, the current price of the underlying security S, the exercise price X, the margin requirement and type, either M for a dollar amount and the unit price movement of the security U, or G for a percentage amount, is entered into the computer (14) which is actuated to calculate the price of the option.
Patent CA-2196251-A1 (CA)
Title: Multiple orifice glass feed system
Inventor: LEIDY D WAYNE
IPC: C03B7/086
Filed: 1997-01-29
Abstract: A multiple orifice glass feed system for use with a glass  forehearth  including  a  plurality  of  closely  spaced plungers, each of which is individually supported independently of the other.  Each plunger includes a servo controlled linear actuator and an arm extending between each plunger and its respective servo-motor.  Each servo-motor has an axis parallel to the axis of the plungers.  An air spring is associated with each plunger for balancing the weight of each plunger and its respective arm.  The center lines of the plungers lie generally in a plane.  The arms have the major portions thereof generally parallel and closely spaced.  A feedback system is provided to monitor the position of each individual needle independently of the other at all times and make corrections to the actual position of the needle if desired.
Patent CA-2196666-A1 (CA)
Inventor: STEINEL HEINRICH WOLFGANG JR
IPC: A61L9/03
Filed: 1995-07-24
Abstract: A heat exchanger is in contact with a heater and is located at the point at which the substance is to be evaporated. The device has a wall power point connection (5) which has primary and secondary rotational couplings inside the housing (1a, 1b). Each rotational coupling has contacts which can be connected to corresp. contacts of the other coupling. The contacts are displaced through 90 degrees in the rotational coupling sections so that electrical connections can be made between the power point contacts (6) and the heater.
Patent CA-2200895-A1 (CA)
Inventor: LADHA NIZAR
IPC: F24D19/10
Filed: 1997-03-25
Abstract: A fluid tempering system for supplying tempered fluid to hot fluid distribution system, for example water at a constant temperature by controlling the amount of cold water from the cold water supply mixing with hot water from the water heater, to control the temperature of water in the hot water distribution system. The higher temperature water mixed with cold water reduces scalding hazard and also increases the volume of hot water, at a tampered temperature, within the hot water distribution system. The system also eliminates the slug in the tempering system.