baber/WOPTO huggingface dataset:
Patent CA-2001026-C (CA)
Title: Silicone sealants having reduced color
Inventor: CHU HSIEN-KUN
IPC: C08K5/54
Filed: 1989-10-19
Granted: 1999-12-07
Abstract: A chelated titanium catalyst can be improved by the addition of an additive selected from the group consisting of organomercaptans of the formula RSH, where R is a hydrocarbon radical containing from 3 to 12 carbon atoms and mercapto containing silanes of the formula HSR'SiX3, where R~ is a divalent hydrocarbon radical having from 1 to 8 carbon atoms and X is an alkoxy radical having 1 to 6 carbon atoms. The improved composition has a reduced tendency to develop color upon storage. The improved composition is particularly useful in a silicone composition comprising a hydroxyl endblocked polydiorganosiloxane and an alkoxysilane or mixture of alkoxysilanes or in a silicone composition comprising an alkoxy endblocked polydiorganosiloxane.
Patent CA-2006549-C (CA)
Title: In vivo recombination of partially homologous dna sequences
Inventor: RADMAN MIROSLAV
IPC: C12R1/91
Filed: 1989-12-22
Granted: 2000-09-05
Abstract: The present invention relates to a process of recombination in vivo of partially homologous DNA sequences having up to 30% of base mismatches. According to its essential characteristic, said sequences are placed together in cells or an organism of which the enzymatic mismatch repair system is defective or has been transitorily inactivated by saturation for the time to obtain recombination between said DNA sequences or in using mutants which increase the intergeneric recombination.
Patent CA-2016644-C (CA)
Title: Tool for a knitting machine
Inventor: HALAMODA HANS-JOACHIM
IPC: D04B35/02
Filed: 1990-05-11
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE A knitting tool, such as a selector sinker or a needle for a knitting machine, includes a flat shank and a narrow elongate control spring projecting from a slot-like opening in a narrow side of the shank.  One end of the control spring has a broader anchorage section at one end which is inserted into a recess provided at an inward end of the opening in the shank.  The width of the recess, measured transversely to the longitudinal extent of the opening, is greater, at least at certain locations, than the width of the opening.  The thickness of the anchorage section or the control spring is less than or equal to the depth of the recess.  As a result, the control spring is rigidly anchored in the shank in a manner secure against rotation.
Patent CA-2019144-C (CA)
Title: Hockey practice device
Inventor: MARTENS KENT L
IPC: A63B65/00
Filed: 1990-06-18
Granted: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE            A hockey puck dispenser.  This device is intended to be used by the novice or the professional to develop or retain particular skills used in the game of hockey.  There is provided a base, support means mounted on the base which carries a tube in an upright manner about 1 1/2 puck thicknesses above the central portion of the base.  The tube is loaded with several pucks which are fed down through the tube by gravity onto the base.  A bent discharge lever is pivotably mounted in the tube support means and when actuated by an impact from a hockey stick of a user the foot of the lever shoots out the puck resting on the base while holding the next puck in the tube until a weight fixed to the lever returns it to its initial position.      Gravity then automatically places another puck on the base ready for discharge.
Patent CA-2023032-C (CA)
Title: Diaphragme, association d'un tel diaphragme a un element cathodique et leur procede d'obtention
Inventor: BACHOT JEAN
IPC: C25B9/23
Filed: 1990-08-09
Granted: 1999-10-19
Abstract: La présente invention concerne des diaphragmes exempts d'amiante pour des cellules d'électrolyse, l'association de tels diaphragmes à un élément cathodique et un procédé d'obtention de tels diaphragmes et d'association de tels diaphragmes à un élément cathodique, par voie humide. Elle vise plus particulièrement un diaphragme microporeux susceptible d'être formé in-situ par voie humide comprenant une nappe fibreuse, exempte d'amiante, dont les fibres sont microconsolidées par un polymère fluoré, l'ensemble étant fritté, ladite nappe renfermant essentiellement de 3 à 35 % en poids de polymère fluoré, liant des fibres, de 0 à 50 % en poids d'un gel d'oxohydroxyde d'au moins un métal des groupes IVA, IVB, VB et VIB de la classification périodique ou des séries des lanthanides et des actinides, de 20 à 95 % en poids d'un mélange de fibres polytétrafluoroéthylène et de fibres minérales, les fibres minérales représentant de 1 à 80 % en poids dudit mélange et étant choisies parmi les fibres de carbone, de graphite, de titanate et leurs mélanges et son éventuelle association à une nappe précathodique. Ces diaphragmes et associations sont notamment utilisables dans les cellules d'électrolyse chlore-soude.
Patent CA-2031384-C (CA)
Title: Active component concentrates and new active component combinations from ginkgo biloba leaves, their method of preparation and pharmaceuticals containing the active component concentrates or the active component combinations
Inventor: O'REILLY JOSEPH
IPC: A61K31/70
Filed: 1990-12-03
Granted: 2002-06-25
Abstract: Active component concentrates and new native component combinations from Ginkgo biloba leaves, their method of preparation and pharmaceuticals containing the active component concentrates or the native component combinations The invention relates to highly concentrated active component concentrates and new active component combinations from Ginkgo biloba leaves as well as their method of preparation and the pharmaceuticals containing these active component concentrates or active component combinations.
Patent CA-2032126-C (CA)
Title: Hierarchical constrained automatic learning network for character recognition
Inventor: DENKER JOHN S
IPC: G06V30/10
Filed: 1990-12-12
Granted: 1993-08-17
Abstract: HIERARCHICAL CONSTRAINED AUTOMATIC LEARNING NETWORK FOR CHARACTER RECOGNITION Abstract Highly accurate, reliable optical character recognition is afforded by a hierarchically layered network having several layers of parallel constrained feature detection for localized feature extraction followed by several fully connected layers for dimensionality reduction. Character classification is also performed in the ultimate fully connected layer. Each layer of parallel constrained feature detection comprises a plurality of constrained feature maps and a corresponding plurality of kernels wherein a predetermined kernel is directly related to a single constrained feature map. Undersampling is performed from layer to layer.
Patent CA-2034054-C (CA)
Title: Cryopreservation process for direct transfer of embryos
Inventor: VOELKEL STEVEN A
IPC: C12N5/06
Filed: 1991-01-11
Granted: 2001-03-27
Abstract: An improved cryopreservation of embryos has been developed. After freezing in a cryoprotective solution of ethylene glycol, dimethyl sulfoxide, glycerol or a combination thereof, the embryos can be thawed and transferred directly to the recipient animal without serial rehydration. The transfer can be made directly from the cryoprotective container to the recipient animal.
Patent CA-2034881-C (CA)
Inventor: GIRARD THOMAS J
IPC: C07K19/00
Filed: 1991-01-24
Granted: 2001-05-29
Abstract: A single-chain hybrid blood coagulation inhibitor is disclosed which has an amino acid sequence composed of two subsequences corresponding to the light chain of Factor X and LACI's first Kunitz domain.
Patent CA-2035903-C (CA)
Inventor: GODIN NORMAN
IPC: A61F2/04
Filed: 1990-07-16
Granted: 1999-10-19
Abstract: The prosthesis is configured like an anti-return valve arranged preferably in the area where the oesophagus and the hiatal hernia meet. Said valve is comprised of a tubular part (7) associated with an annular fixing element (8). The tubular part flatens progressively to form two joined lips (9, 10). It is possible to form said valve with a wall thickness which increases from the free end of the lips (9 and 10) towards the annular fixing part (8) in order to avoid an easy returning under the effect of the surging pressure. During the passage of the alimentary bolus, the lips (9, 10) are spaced apart and joined again owing to their natural elasticity. A metal wire (16) embedded in the annular fixing part (8) is used for the radiologic marking.
Patent CA-2039502-C (CA)
Title: Controlling hvac test functions
Inventor: BALDWIN JOE M
IPC: F24F11/00
Filed: 1991-04-02
Granted: 1996-05-07
Abstract: A method of controlling the operation of an HVAC system comprising the steps of:  accepting an input; selecting a first mode of operation if the input has a value in excess of a first predetermined limit; selecting a second mode of operation if the input has a value less than a second predetermined limit; selecting a third mode of operation if the input has a value which is between the second and the first predetermined limits.
Patent CA-2040537-C (CA)
Title: Colored retroreflective sheeting and method for making same
Inventor: ROWLAND WILLIAM P
IPC: G02B5/124
Filed: 1991-04-16
Granted: 1999-07-20
Abstract: A retroreflective material providing a visual coloration includes a body member with microprisms on its rear surface.          Some of the microprisms have a retroreflective interface and the remainder have a colored non-reflective coating thereon.          As a result, light rays entering the front face which impinge upon  the prisms with the  retroreflective  interface are redirected so that they exit the material in a parallel path.          Light rays which travel to the color coated prisms are refracted from those prisms and impart a visual coloration to the material in daylight and ambient light.
Patent CA-2042331-C (CA)
Title: Band saw apparatus and method with first cut input to controller
Inventor: RICHARDS MARK P
IPC: B23D59/00
Filed: 1991-05-10
Granted: 2002-04-09
Abstract: A band saw having a controller responsive to sensing signals as to operating parameters of the saw to generate a material distribution profile during a first cut of a piece of bar stock is disclosed.      During subsequent cuts, the controller for the band saw operates control circuits for blade cutting force, blade feed rate and blade speed to maintain a desired, usually constant, material cutting rate of the bar stock, notwithstanding changes in bar stock cross section and changes in band saw geometry during the cut. A method is disclosed in which operating parameters are sensed, a distribution profile generated, and the profile employed during subsequent cuts to control the operating parameters for optimum cutting efficiency.
Patent CA-2043832-C (CA)
Inventor: OZAKI MASAHIDE
IPC: A44B19/42
Filed: 1991-06-04
Granted: 1994-01-18
Abstract: ABSTRACT OF THE DISCLOSURE     A process for the manufacture of slide fasteners from an elongate stringer chain is disclosed in which the stringer chain is maintained in tensionless suspension at predetermined locations along the path of its movement through various stages of production.  A plurality of processing units are controlled so as to operate in synchronized relation to one of such units which has a slowest cycle of operation.
Patent CA-2044956-C (CA)
Title: Polyacetal blends
Inventor: FLEXMAN EDMUND A JR
IPC: C08L77/00
Filed: 1991-06-19
Granted: 2002-07-02
Abstract: Incorporation of a thermoplastic polyurethane and at least one thermoplastic crystalline polymer selected from nylon 6, nylon 612, polypropylene, polyethylene, and polyalkylene terephthalates containing at least one ethylene copolymer into polyacetal polymer results in blends characterized as having improved toughness, or impact strength, and improved elongation over that of a comparable blend of polyacetal and at least one of said crystalline polymers alone.
Patent CA-2047131-C (CA)
Title: Sealing device for fuel supply port of fuel tank for use in vehicles
Inventor: AOSHIMA KAZUYUKI
IPC: F16J15/32
Filed: 1991-07-16
Granted: 1994-09-20
Abstract: A sealing device for the fuel supply port of a fuel tank for use in vehicles includes a nozzle seal made of a rubber-like elastic material.  The nozzle seal is provided in an annular groove formed in an inner peripheral surface of a fuel supply port guide in such a manner as to be movable in a radial direction.  The inner peripheral portion of the nozzle seal can make contact with a fuel supply nozzle with an interference provided therebetween.  A sealing means is provided on an outer peripheral or side surface of the nozzle seal to seal a gap in said annular groove.  A reinforcing ring is provided on an outer peripheral portion of the nozzle seal.  The reinforcing ring has axial and radial portions.  The radial portion of the reinforcing ring is located adjacent to the fuel supply port guide on a side of the annular groove adjacent to the tank.
Patent CA-2047519-C (CA)
Title: Water-cooled rolls for cooling steel sheets
Inventor: NITTA HIDEO
IPC: C22C38/00
Filed: 1991-07-22
Granted: 1999-01-19
Abstract: A water-cooled roll for cooling steel sheets is spray-coated on the surface that comes in contact with the steel sheets with a cermet composed of a metal oxide having a higher hardness and lower thermal conductivity than metals and a metal matrix of Ni- or Co-base heat-resisting alloy.  The metal oxide is chosen from among Al2O3, Cr2O3, SiO2, and ZrO2, and the metal matrix consists of an MCrAlY (M = Co or Ni).  Preferably, the metal oxide is alumina and the metal matrix, CoCrAlYTa.
Patent CA-2048299-C (CA)
Title: Digital engine analyzer
Inventor: JONKER GARY D
IPC: F02P17/08
Filed: 1991-08-01
Granted: 2000-03-14
Abstract: A digital engine analyzer has an oscilloscope display and is controlled by microprocessors operating under menu-driven stored program control. The analyzer receives analog input signals from an engine being analyzed, engine identification and parameter data entered via a keyboard, function and mode data selected by keyboard, and data communicated from an engine on-board computer via a hand-held scanner device. The analyzer calculates and displays spark plug burn time information derived from a single analog input signal, a historical display of peak ignition voltage values for a selected cylinder over a number of engine cycles and real time cylinder time balance information. Peak capture circuitry permit the display of a full cylinder period of a waveform, even though it contains very high frequency portions, by selectively switching between normal and high resolution modes. The scanner interface permits the scanner control functions to be effected from the analyzer keyboard.
Patent CA-2054244-C (CA)
Title: Powdered desulfurizing reagent and process of use
Inventor: BARKER BRUCE JAMES
IPC: C21C1/02
Filed: 1991-10-25
Granted: 2000-08-01
Abstract: A reagent for desulfurizing molten iron comprising calcium carbide and/or lime and an asphaltite. The reagent may contain, in addition, magnesium which is either uniformly distributed within the reagent mixture, or stored separately and added to the mixture during fluidized transport of the reagent just prior to injection to vary the addition of magnesium for any given injection.
Patent CA-2055964-C (CA)
Title: Cooling system for a water cooled internal combustion engine for vehicle having an air conditioning apparatus
Inventor: SUSA SUMIO
IPC: F01P7/12
Filed: 1991-11-21
Granted: 2001-01-23
Abstract: A vehicle provided with an internal combustion engine and an air conditioning system for a vehicle passenger cabin. A condenser of the air conditioning system is arranged in front of a radiator of the engine in an engine compartment of the engine. A duct is arranged between the condenser and the radiator for preventing the air passing the radiator from being returned forward P. A first damper, which is normally closed is provided in the duct, but is opened when the engine temperature is high to provide a flow of air, bypassing the condenser, directly into the radiator.
Patent CA-2070116-C (CA)
Title: Global positioning system based method for high-accuracy and high-confidence level absolute and relative position and velocity determinations
Inventor: GEIER GEORGE J
IPC: G01S19/11
Filed: 1992-06-01
Granted: 1995-01-24
Abstract: ABSTRACT      An embodiment of the present invention is a shipboard GPS positioning system having data links to outlying tailbuoys equipped with respective GPS receivers.  On ship, an Intel 386-based microcomputer system collects data from various ship's equipment including the ships's GPS receiver and data from the several tailbuoy units.  A computer-implemented process located in the microcomputer system controls the following processes. Periodically each GPS receiver produced updated pseudo ranges (PRs) and these are time-tagged.  The time-tagged PRs for the ship are aligned according to their time tags with their counterpart PRs from the tailbuoys.  The raw PRs are then passed through a Kalman mathematical filter to produce filtered pseudo-ranges (??s).  A position solution is then attempted for each GPS receiver using the ??s.  The filters provide statistical data that is used to rate the quality of each ?? in a weighted least squares solution process.  Special measures are included to provide quality control/quality assurance, including the use of error ellipses on the display, to present a graphic indication of expected solution accuracy, and the use of real time fault detection, isolation, and correction algorithms when redundant satellite information is available.
Patent CA-2070176-C (CA)
Title: Procedure for obtaining derivatives of acetic acid
Inventor: OCHOA GOMEZ JOSE RAMON
IPC: B01J25/04
Filed: 1991-10-03
Granted: 1999-06-01
Abstract: A procedure for obtaining derivatives of acetic acid, such as glycine, IDA and NTA by dehydrogenating mono-, di- and tri-ethanolamine, respectively, in the presence of a Raney copper catalyst.   This procedure includes a stage consisting of regenerating the used catalyst in order to be able to reuse it in  successive reaction cycles.   The regeneration process consists of treating the used catalyst with formic acid under reflux, filtering it and digesting it with demineralized water and NaOH until the wash water reaches a slightly alkaline value.  The regenerated catalyst may be reused in successive reaction cycles whilst maintaining an average yield of 87%, that is, of the same order of magnitude as when a new catalyst is employed.
Patent CA-2077881-C (CA)
Title: Wavelength division multiplexer and demultiplexer
Inventor: VAN DER TOL JOHANNES JACOBUS G
IPC: G02B6/12
Filed: 1992-09-09
Granted: 1997-02-25
Abstract: This invention provides a wavelength division multiplexer and a wavelength division demultiplexer by combining a wavelength-selective mode converter (3) with a wavelength-independent mode splitter (5).  The demultiplexer comprises a monomodal input channel (1), an adapter (2) to the bimodal input of a 100%TX00-TY01(.lambda.1) mode converter (3), a bimodal junction channel (4), and a mode splitter (5) having a first output channel (6) and a second output channel (7), both monomodal, the first output channel (6) having a higher propagation constant than the second. A .lambda.1 component, which propagates with a polarisation TX(TE or TM) in an input signal Si1(.lambda.1,.lambda.2,.lambda.3,--), will, after conversion in the converter (3), propagate in the intermediate channel (4), in the first-order guided mode having the polarisation TY (TE or TM), and subsequently leave a splitter via output channel (7).  The remainder of the input signal is not affected by the converter, therefore remains in the zero-order mode in the intermediate channel (4), and will leave the splitter (5) via output channel (6).  The multiplexer operates in the opposite direction.  Advantages: Completely producible in integrated form, no fabrication steps of a different type required other than for the fabrication of the connecting optical waveguide.
Patent CA-2085558-C (CA)
Title: Polymerization catalyst and process
Inventor: JACKSON MARGIE FAYE
IPC: C08F4/70
Filed: 1992-12-16
Granted: 1998-09-29
Abstract: A composition of matter is provided comprising a catalytic mixture resulting from contacting at least one of each of the following compounds, an pyridine compound, a clay compound, and an organo-nickel compound. Additionally, a process is provided comprising contacting, under polymerization conditions, at least one alpha-olefin, with a catalytic mixture resulting from contacting at least one of each of the following compounds, an pyridine compound, a clay compound, and an organo-nickel compound.
Patent CA-2086010-C (CA)
Title: Method and apparatus for synchronizing simulcast systems
Inventor: GOLDBERG STEVEN JEFFREY
IPC: H04B5/04
Filed: 1991-10-17
Granted: 1995-10-03
Abstract: A method for measuring a time delay between a controller (302) and a plurality of base sites (306) in a simulcast system (300). The method begins with the controller (302) transmitting a first signal to one of the plurality base sites (306A) and transmitting a second signal at substantially the same time to a delay monitor (316) that receives the second signal and a third signal from a selected base site (306A). The delay monitor (316) transmits the time between the transmission and reception of the first signal to the controller (302) whichprograms the base sites (306) to delay transmissions of the RF signals in response to the measured delay.
Patent CA-2095310-C (CA)
Title: Wiper driving apparatus
Inventor: KANO MASAMI
IPC: B60S1/16
Filed: 1993-04-30
Granted: 2001-12-04
Abstract: A wiper driving apparatus comprising: a drive gear 12 rotated by a motor 31; a clutch member 15 rotating together with the drive gear 12 only in a direction the drive gear 12 is biased to; a pair of electric conductor plates 24 and 25 for turning on and off an electric circuit of the motor 31; a pair of movable contacts 16 and l8 rotatable relatively with the electric conductor plates 24 and 25 in sliding contact with the electric conductor plates 24 and 25, respectively; and a housing 1 rotatably supporting the clutch member 15 with a supporting axle 14 and having the electric conductor plates 24 and 25 provided concentrically therewith; wherein both of the movable contacts 16, 18 and the clutch member 15 are rotated integrally with one anoth-er. The clutch member 15 is formed as a conductive member, one 16 of the movable contacts is formed inte-grally on the clutch member 15, and the electric conduc-for plate 24, on which the movable contact 16 slides, is disposed adjacently to the supporting axle 14.
Patent CA-2102220-C (CA)
Title: Expandable sonar array
Inventor: SECRETAN STANLEY
IPC: G01S7/521
Filed: 1992-04-15
Granted: 2000-06-06
Abstract: An expandable sonar array structure (10) includes a central body (12) with a plurality of radially extendable hydrophone support arm assemblies (16) attached to said body and including a motor-driven drive member (20) to which all the arm assemblies are attached through pushrods (38, 40). Each arm assembly ( 16) includes three substantially vertically aligned; radially extending ,arms (22, 24, 26) carrying hydrophones (42) with top and bottom arms attached to the pushrods (38, 40) through short arms with pivots chosen sa that the arms move in opposite directions.
Patent CA-2104490-C (CA)
Inventor: HOWARD FRANK C
IPC: B25C1/04
Filed: 1993-08-20
Granted: 1997-02-04
Abstract: In a pneumatically powered or combustion-powered fastener-driving tool including a nosepiece, a mechanism is provided for positioning the tool relative to an opening in a workpiece to be fastened to another workpiece.  A probe connected to an actuator used in such a tool, preferably via a spring strip, so as to be laterally movable extends into the opening to align the nosepiece so that a fastener can be precisely driven. The probe has a surface engageable by a driven fastener to move the probe laterally and from the opening as the tool recoils.  Optionally, a guide spaced from the probe and mounted pivotally is adapted to bear against the workpiece with the opening.  The probe and the guide have respective grooves defining a channel for guiding a driven fastener.