baber/WOPTO huggingface dataset:
Patent CA-2089599-C (CA)
Title: New polymer-modified, functionalized asphalt compositions and methods of preparation
Inventor: GORBATY MARTIN L
IPC: C08L95/00
Filed: 1993-02-16
Granted: 2000-05-16
Abstract: Disclosed in this invention are novel asphaltic compositions and the method of making same. The compositions are made by combining an asphalt that contains sulfonate or sulfonic acid groups, a polymer preferably of butyl rubbers, styrene-butadiene linear diblock polymer, styrene-butadiene-styrene linear or radial triblock polymer and EPDM that has been sulfonated, and mixtures thereof, and a basic neutralizing agent that contains cations having a valence from +1 to +3. The amount of polymer is an amount less than 7 wt.% of total polymer-asphalt composition that is sufficient to produce an asphaltic composition having a viscosity at 135°C in the range of from about 150 cPs to about 2000 cPs or from about 3000 cPs to about 8000 cPs. The novel asphaltic compositions have improved viscoelasticity, softening point, and storage stability. The compositions can be used as binders in road paving applications.
Patent CA-2091665-C (CA)
Inventor: TSANTRIZOS PETER GEORGE
IPC: C01B31/02
Filed: 1993-03-15
Granted: 2003-01-07
Abstract: A process is disclosed to synthesize fullerenes in a plasma reactor. It comprises introducing various amounts of carbon halides as the plasma forming gas in a plasma torch capable of producing a high enough temperature flame to dissociate the carbon bearing molecules into carbon and halogen atoms, hence forming a carbon cloud which condenses into a soot containing fullerenes. Also hydrocarbons and/or inert gases can be introduced in the torch as the plasma forming gas and reacted with carbon halides or halogens injected therewith or directly into the plasma flame at the exit of the torch. The process can use a high enthalpy non-transferred d.c. plasma torch or an induction plasma torch as the plasma generating device.
Patent CA-2091953-C (CA)
Inventor: MOHR JUERGEN
IPC: C10M133/58
Filed: 1993-03-18
Granted: 2004-06-01
Abstract: Fuels for internal combustion engines or lubricants contain small amounts of compounds of the formulae Ia and/or Ib (See formulae Ia & Ib) where R is an aliphatic hydrocarbon radical having a number average molecular weight of from 250 to 5,000 and X is (See formula III) where the radicals R1 may be identical or different and are each hydrogen, C1-C10-alkyl, C1-C8-hydroxyalkyl or C1-C8-aminoalkyl, or where the two radicals R1 may form a nonaromatic ring.
Patent CA-2094241-C (CA)
Title: Surface feature mapping using high resolution c-scan ultrasonography
Inventor: GLENN WILLIAM E
IPC: G01S7/52
Filed: 1991-11-06
Granted: 2002-04-23
Abstract: An ultrasonic system and method for imaging a surface wherein a C-mode ultrasonic scan is performed over a fixed area of the surface and range gating is applied to that area to a given depth below the surface. For use of the system and method in fingerprint imaging, a live finger is placed upon a sensitive surface, the portion of the finger on the surface is scanned using the ultrasonic energy, and ultrasonic energy returned from the finger portion is received to capture an electronic image of the pattern of ridges and valleys of the fingerprint. The ultrasonic imaging system comprises a probe (102) for providing a directed output ultrasonic beam to scan the surface and to receive ultrasonic echos from the surface, a pulser-receiver (104), a signal processing circuit (108). The probe scans the surface along one direction, and then along another direction, the two directions preferably be-ing orthogonal.
Patent CA-2095789-C (CA)
Title: Transdermal administration system for estradiol
Inventor: GONELLA JACQUES
IPC: A61K9/70
Filed: 1993-05-07
Granted: 2002-12-03
Abstract: The adhesive plaster for the transdermal ad-ministration of estradiol or mixture estradiol/ proges-tin is composed of an impermeable carrier film and of an adhesive composition. The latter represents a matrix or reservoir layer and is composed of a solvent-based polyacrylate or polyisobutylene adhesive which contains a saturated or unsaturated fatty acid with 6 to 18 C atoms as permeability enhancer, estradiol or mixture estradiol/progestin as active substance and optionally propylene glycol as solvent.        The adhesive plaster is used for the systemic administration of hormones in hormone replacement ther-apy for a time of at least 3 days.
Patent CA-2096602-C (CA)
Inventor: HANEMAAYER JACOBUS N
IPC: B60P3/36
Filed: 1993-05-19
Granted: 1998-05-05
Abstract: A  recreational  vehicle  is  provided  with  a storage compartment which makes use of the space in the region of the curved running board of the vehicle and combines it with the space under the floor of the vehicle and running along one side of it thus making a relatively large storage space which is sealed from the elements and to which access is provided through one or more doors provided directly in the running board or in the lower portion of the vehicle body side wall directly thereabove, or in both, depending on the circumstances.
Patent CA-2096712-C (CA)
Title: Recovery of caprolactam from oligomers and/or polymers of caprolactam
Inventor: FUCHS HUGO
IPC: C08J11/14
Filed: 1993-05-20
Granted: 2003-09-09
Abstract: A process for recovering caprolactam from oligomers and/or polymers of caprolactam comprises the following steps: a) treating oligomers and/or polymers of caprolactam with from 1 to 20 parts by weight of water per part by weight of oligomer or polymer at from 200 to 350°C under superatmospheric pressure with a resi-dence time of from 0.5 to 10 hours to form an aqueous reaction mixture comprising polycaprolactam, monomeric caprolactam and oligomers thereof, and b) passing the aqueous reaction mixture obtained in a) into a fluidized bed of alumina at from 250 to 400°C to obtain a mixture of steam and caprolactam.
Patent CA-2096878-C (CA)
Title: Efficient frequency scalable video encoding with coefficient selection
Inventor: CIVANLAR MEHMET REHA
IPC: H04N19/60
Filed: 1993-05-25
Granted: 1999-02-16
Abstract: An improved technique for efficient frequency scaling wherein the number of coefficients to be included in each sub-block is selectable, and a code indicating the number of coefficients within each layer is inserted in the bistream at the beginning of each encoded video sequence. This technique allows the original runs of zero coefficients in the highest resolution layer to remain intact by forming a sub-block for each scale from a selected number of coefficients along a continuous scan. These sub-blocks may be decoded in a standard fashion, with an inverse discrete cosine transform applied to square sub-blocks obtained by the appropriate zero padding of and/or discarding of excess coefficients from each of the scales. This invention further improves coding efficiency by allowing an implicit end of block signal to separate blocks, making it unnecessary transmit an explicit end of block signal in most cases.
Patent CA-2100200-C (CA)
Inventor: JENISTA DAVID R
IPC: C21D1/667
Filed: 1993-07-09
Granted: 1996-07-09
Abstract: The specification discloses a dynamic self-adjusting taper quenching system for producing isothermal extrusions in a nonferrous extrusion operation.  The quenching system includes a quenching unit, a computer for controlling the quenching unit, and an interface for reading the extrusion press ram pressure.   A target quenching profile is stored in the computer.  The computer samples the ram pressure during extrusion of a quenched billet and adjusts the target quenching profile for subsequent billets as a function of the sampled pressures.
Patent CA-2101312-C (CA)
Inventor: FURUKAWA JUN
IPC: H01M4/62
Filed: 1993-07-26
Granted: 2001-05-15
Abstract: A paste-type nickel electrode for an alkaline storage battery and an alkaline storage battery containing the electrode are described. In one embodiment, the paste-type nickel electrode contains a nickel filamentary powder electroconductive agent having a network of three-dimensional chain structures with an average diameter of equal to or less than about 1.3 µm. When the paste-type nickel electrode is used as the positive electrode of an alkaline storage battery, a high capacity, long-life alkaline storage battery is obtained. In a second embodiment, an improved alkaline storage battery is obtained through the provision of a paste-type nickel positive electrode plate containing at least one of a Co powder and a CoO powder as an electroconductive agent and an alkaline electrolyte solution having an alkaline concentration of 35 wt.% or greater. In a most preferred embodiment, this latter alkaline storage battery additionally contains a nickel powder electroconductive agent having a network of three-dimensional chains with an average diameter of 1.3 µm or less in the positive electrode.
Patent CA-2101941-C (CA)
Title: Method for implanting a patellar prosthesis
Inventor: MIKHAIL W E MICHAEL
IPC: A61B17/16
Filed: 1992-02-06
Granted: 1995-11-14
Abstract: A method for preparing a patella for receiving a patellar implant and for implanting a prosthesis (24) therein. An elongat-ed passageway (76) is formed in the patella which is then reamed to form a cavity (22) of a size and configuration to receive the patellar prosthesis (24) using a cannulated reamer (10) telescoped over a guide rod (50) positioned in the elongated passageway (76).
Patent CA-2102787-C (CA)
Inventor: CLEMENS ROBERT J
IPC: C09D167/00
Filed: 1992-06-02
Granted: 1997-12-30
Abstract: Disclosed are compounds of formula (1) wherein R is C4-C10 tertiary alkyl; R1 is C1-C6 alkyl or aryl; and A is a group of formula (2) or (3), wherein R2 is phenyl; or A is a C1-C10 hydrocarbyl radical, useful as crosslinking agents and a process for the preparation therefor. Also provided are novel enamel compositions containing the crosslinkers and coatings and articles coated with thermosetting coating compositions crosslinked with these novel crosslinkers.
Patent CA-2104410-C (CA)
Inventor: KEYAKI KEIICHI
IPC: A44B19/26
Filed: 1993-08-19
Granted: 1996-03-05
Abstract: A decorative slider for slide fasteners comprising a slider body having a through mounting hole extending therethrough, and a decorative plate having a through hole formed therethrough and placed on the slider body with the through hole aligned with the mounting hole .  A retaining pin extends loosely through the through hole and fitted in the mounting hole so as to attach the decorative plate to the slider body for diversify the appearance of sliders without changing the whole appearance of the slider.
Patent CA-2104456-C (CA)
Title: Pyridine- and imidazole-derived agents for cardiovascular diseases
Inventor: DACK KEVIN NEIL
IPC: C07D233/61
Filed: 1992-03-17
Granted: 1996-12-10
Abstract: Compounds of formula (I) or a biolabile ester thereof, or a pharmaceutically acceptable salt of either, wherein R1, R2, R3 and R4 are each independently selected from H or C1-C4 alkyl, R5is (CH2)mSO2R6, (CH2)mNHSO2R6 or (CH2)mNHCOR7; R6 and R7 are C1-C6 alkyl, C1-C3 perfluoroalkyl(CH2)n, C3-C6 cycloalkyl(CH2)n, aryl(CH2)n or heteroa-ryl(CH2)n; or R6 is NR8R9; R8 is H or C1-C4 alkyl; R9 is C1-C6 alkyl, C3-C6 cycloalkyl(CH2)n, aryl(CH2)n or heteroa-ryl(CH2)n; or R8 and R9 together with the nitrogen atom to which they are attached form a 5- to 7-membered heterocyclic ring which may optionally incorporate a carbon-carbon double bond or a further hetero atom linkage selected from O, S, NH, N(C1-C4 alkyl) and N(C1-C5 alkanoyl), and which may optionally be substituted with one to three substituents each in-dependently selected from C1-C4 alkyl and C1-C4 alkoxy, and which may optionally be benzo-fused; X is CH2, CHCH3, C(OH)CH3, C = CH2 or O; m is 0 or 1; n is 0, 1, 2 or 3; and Het is 3- or 4-pyridyl or 1-imidazolyl; with the proviso that when Het is 1-imidazolyl then X is CH2 or CHCH3, are combined thromboxane A2 synthetase inhibitors and thromboxane A2/endoperoxide antagonists of utility in the treatment of disease conditions in which thromboxane A2 is a causative agent.
Patent CA-2110700-C (CA)
Title: Determination of induced change of polarization state of light
Inventor: GOETTSCHE ALLAN
IPC: G01J4/04
Filed: 1992-06-04
Granted: 2001-08-07
Abstract: A method of determining induced change of polarization state of light in a polarization element comprising transmitting unpolarized light from a light source at the one end of an optical transmitter waveguide means (21) to polarizer means (31) at the other end; polarizing the unpolarized light by the polarizer means (31); transmitting the polarized light through the polariza-tion element (41; 41A, 41B) using at least one reflective optical element; an-alyzing the transmitted polarized light from the polarization element by an analyzer means (32); and transmitting he analysed polarized light from the one end of optical receiver waveguide means (22) to a light detector at the other end; wherein the unpolarized light polarized by the polarizer means (31); the polarized light analysed by he analyzer means (32), or both, are non-collimated; and the polarized light in the light path between the polariz-er means (31) and the analyzer means (32) is collected and reflected by at least one reflective imaging optical element (51) so that the analyzed light ex-its the analyzer means (32) from the same side as the unpolarized light enters the polarizer (31). Further, fiber optic sensor devices for determining induced change of polarization state of light in a polarization element, particularly linear birefringence induced by electric voltage, electric field, and mechani-cal force, and circular birefringence induced by electric current and magnetic field.
Patent CA-2115549-C (CA)
Title: Blow moldable thermoplastic polyamide composition
Inventor: KATSAROS JAMES DEAN
IPC: B29K27/00
Filed: 1992-08-07
Granted: 2003-06-17
Abstract: A flexible, thermoplastic, blow moldable composition which comprises a substantially homogeneous blend of (A) about 40-60 wt.% polyamide, (B) about 20-58 wt.% of a first ethylene copolymer selected from the group consisting of copolymers of ethylene and at least one alpha,beta ethylenically-unsaturated carboxylic acid having 3-8 carbon atoms, and ionomers of said eth-ylene copolymers, (C) about 1-20 wt.% of a second ethylene copolymer having interpolymerized units of ethylene and an alp-ha,beta ethylenically-unsaturated aliphatic epoxide, and (D) about 0.1-0.6 wt.% fibrillatable fluoropolymer,
Patent CA-2122651-C (CA)
Title: Procede de pose d'une sonde ophtalmologique
Inventor: RITLENG PIERRE
IPC: A61F9/007
Filed: 1994-05-02
Granted: 2007-04-17
Abstract: Procédé de pose d'une sonde bicanaliculaire dans les canalicules lacrymaux selon la méthode de BUSSE. Selon l'invention, la canule cylindrique creuse fermée à son extrémité (3), une lumière oblongue (2) étant formée au voisinage de l'extrémité (3) est caractérisée en ce qu'une fente (5) permet le passage d'une partie rétrécie (7) d'un fil de guidage (6) pour dégager la canule du fil.
Patent CA-2124473-C (CA)
Inventor: MAUSSER WILHELM
IPC: D21F3/06
Filed: 1994-05-27
Granted: 1999-03-23
Abstract: The present invention relates to an apparatus for dewatering mixtures of fibrous and liquid materials wherein at least one pair of mutually opposite pressure elements forms a pressure gap through which a continuous web formed of the mixture of fibrous and liquid materials is passed jointly with at least one endless belt, and wherein the pressure elements are set up in a press frame, at least one pressure element being movable in such frame.  At least one distance adjustment means is provided for adjusting at least one pressure element and thereby the magnitude of the pressure gap or the pressure intensity.  The at least one distance adjustment means is installed solely between the mountings of the pressure elements.
Patent CA-2130211-C (CA)
Inventor: BAHLER LAWRENCE G
IPC: G10L25/18
Filed: 1994-08-09
Granted: 2004-05-25
Abstract: A telephone long distance service is provided using speaker verification to determine whether a user is a valid user or an impostor. The user claims an identity by offering some form of identification, typically by entering a calling card number on the phone's touch-tone keypad or by a magnetic strip on the card which is read by the telephone. Unrestricted, extemporaneous speech of a group of customers are digitized, analyzed in accordance with a PCM circuit, and characterized as a non-parametric set of speech feature vectors. The extemporaneous speech of the long distance telephone service user claiming the identity of a service customer via his card number is digitized and analyzed in a like manner. The identity of the user is verified by comparing, either during or after the call, the signals in accordance with an algorithm which compares a reference utterance of a known customer with input utterances from one or more unknown telephone service users, one of which users has claimed the identity of the customer. This comparison results in a decision to accept or reject the hypothesized identity. The identity hypothesis to be tested is thus derived from the calling card of the customer.
Patent CA-2134129-C (CA)
Title: Web tensioning device
Inventor: SIMONS ROBERT
IPC: B65H23/185
Filed: 1994-10-24
Granted: 1999-05-04
Abstract: ABSTRACT OF THE DISCLOSURE         A web tensioning system for controlling the web tension from a supply roll source comprising in combination; a pay-off supply  roll  having  a  drive  motor,  and  a  motor  controller interconnected thereto, a film web extending from said supply roll through a multiple roller assembly downstream of said supply roll, said roller assembly comprising at least one idler roller, and a sensing roller,  pressure transducers on said sensor roller,  a conditioning circuit receptive to input signals from said pressure transducers,  a control signal generated from said conditioning circuit to said motor controller in response to a film web tension value, a source of power for said motor controller, motor and said conditioning circuit, whereby the web tension on the sensing roller is used to control the drive motor.
Patent CA-2134891-C (CA)
Inventor: MUEHLBERGER STEPHAN E
IPC: B23K10/02
Filed: 1993-05-11
Granted: 1999-08-03
Abstract: A plasma gun assembly (12) for use in high temperature environments couples electrode and cooling water supplying hoses (30 and 32) to a plasma gun (18) via an extension arrangement having a conductive cathode extension tube (32) coaxially disposed within a conductive anode extension tube (48). The cooling water flows through the hallow interior of the cathode extension tube (72) to the plasma gun (18), then returns from the plasma gun via a passage formed between the outside of the cathode extension tube (72) and the interior wall of the anode extension tube (48). In this manner the anode and cathode extension tubes are cooled as well as the plasma gun.  Powder and plasma gas are supplied to the plasma gun (18) by water-cooled tube arcangements in which such tubes (36 and 40) are surrounded by intermediate and outer tubes forming separate passages. Cooling water is coupled via fittings to flow through the passages formed by the intermediate and outer tubes (124 and 130) to provide cooling.
Patent CA-2137525-C (CA)
Title: Isopropyl 2-methoxyethyl 4-(2-chloro-3-cyano-phenyl)-1,4-dihydro-2,6-dimethyl-pyridine-3,5-dicarboxylate
Inventor: MEIER HEINRICH
IPC: C07D211/90
Filed: 1994-12-07
Granted: 2005-07-12
Abstract: The present invention relates to the new compound rac-isopropyl 2-methoxyethyl 4-(2-chloro-3-cyano-phenyl)1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate and its pure enantiomers, processes for their preparation and their use as medicaments, in particular for the treatment of cerebral and neuronal disorders, and a new intermediate for their preparation.
Patent CA-2137863-C (CA)
Inventor: WARKENTIN KENNETH
IPC: B01L99/00
Filed: 1994-12-12
Granted: 2007-05-29
Abstract: Methods and apparatus for exposing a sample to ultraviolet radiation are disclosed. The present invention permits a sample contained within a shielded housing to be exposed to a source of ultraviolet radiation and simultaneously observed. The sample rests on a stage that can be moved relative to the source of the ultraviolet radiation while the irradiation is taking place, thus the effects of ultraviolet radiation upon biological materials such as blood can be determined. In a preferred embodiment, upper and lower banks of ultraviolet bulbs are disposed on either side of the stage. The movement of the banks of bulbs and the stage relative to one another is preferably controlled by a set of lead screws. In certain embodiments, the intensity of the emissions of the bulbs themselves can also be altered while continuously observing and irradiating the sample. The invention preferably uses radiation at a wavelength in the UV-B band, between about 280-320 nm or, more preferably, in the UV-A band, between about 320-400 nm.2
Patent CA-2138537-C (CA)
Title: Symmetric multiprocessing system with unified environment and distributed system functions
Inventor: BERTONE JAMES F
IPC: G06F12/0804
Filed: 1994-04-28
Granted: 2003-02-25
Abstract: A symmetric multiprocessing system with a unified environment and distributed system functions provides unified address space for all functional units in the system while distributing the execution of various system functions over the functional units of the system whereby each functional unit assumes responsibility for its own aspects of these operations. In addition, the system provides improved system bus operation for transfer of data from memory.
Patent CA-2149647-C (CA)
Inventor: FOURNIER FREDERIQUE
IPC: G06F17/00
Filed: 1994-09-19
Granted: 2005-11-08
Abstract: The method applies to an underground formation for which geological data are available from core drillings or logs from wells (W1-Wk) made therein, and from seismic data obtained, for example, by means of a 3D type reflection seismic exploration campaign. The method uses a statistical calibration technique with statistical standardization obtained by reconciliation of local geological data (measured in the wells) with seismic attributes read from seismic traces (RW1-RWk) obtained in the immediate vicinity of each well. This calibration gives an empirical relation which can be applied to all seismic traces for the field to infer the associated geological characteristics, thus giving the benefit of a much denser spatial coverage than that possible through seismic exploration. Application, for example, to a reservoir containing petroleum effluents.
Patent CA-2152799-C (CA)
Inventor: FRITZE KEITH R
IPC: G01C19/70
Filed: 1993-03-22
Granted: 2003-08-19
Abstract: A direct digital dither drive for a laser gyro dither motor (244B) including a digital microcomputer, (100) which controls the dithering of a laser gyro (10) to prevent lock in of the laser beams. The digital drive senses a dither position and schedules internal A/D conversions using an A/D conversion abritation scheme. The period frequency and location of the minimum and maximum drive an determined using the microcontroller (100). Accurate dither drive is accomplished using a digital analog feedback system which compensates for real time changes in dither pickoff (244A) and dither (244B) drive components.
Patent CA-2156759-C (CA)
Title: Synchronous polarization and phase modulation for improved performance of optical transmission systems
Inventor: BERGANO NEAL S
IPC: G02F2/00
Filed: 1995-08-23
Granted: 2000-06-27
Abstract: A method and apparatus is provided for modulating the polarization of an optical signal. A polarization modulator receives an optical signal onto which data has been modulated at a predetermined frequency. The polarization modulator modulates the state of polarization of the optical signal at a frequency phase locked and equal to the same predetermined frequency at which the data is modulated onto the optical signal. The polarization modulation is performed so that the averagevalue of the state of polarization over each modulation cycle is substantially equal to zero.