baber/WOPTO huggingface dataset:
Patent CA-2045723-C (CA)
Title: Injection-molded article
Inventor: TERADA MASAHIRO
IPC: B60R19/03
Filed: 1991-06-26
Granted: 1999-09-28
Abstract: A large-sized exterior part of an automotive vehicle, injection-molded and formed of a polymer material comprising: (A) polypropylene in an amount ranging from 50 to 70 weight %, the polypropylene containing ethylene in an amount not more than 15 weight % relative to the polypropylene and having a MFR (at 230 °C) ranging from 5 to 60 g/10min.; (B) ethylene-propylene copolymer rubber polymerized in presence of a vanadium-based catalyst, in an amount ranging from 5 to 30 weight %, the copolymer containing propylene in an amount ranging from 20 to 40 weight % relative to the ethylene-propylene copolymer rubber and having a Mooney viscosity ML1+4(100°C) ranging from 20 to 80; (C) ethylene-propylene copolymer rubber polymerized in presence of a titanium-based catalyst, in an amount ranging from 5 to 45 weight %, the copolymer containing propylene in an amount ranging from 30 to 70 weight % relative to the ethylene-prolylene copolymer rubber and having a Mooney viscosity MLl+4(100°C) ranging from 20 to 75; and (D) polyethylene in an amount not more than 10 weight %, the polyethylene having a MFR (at 190 °C) ranging from 5 to 50 g/10 min. The injection-molded article has an average thickness ranging from 2 to 6 mm, a flexural elastic modulus ranging from 3000 to 6000 kg/cm2, and a coefficient of linear expansion not higher than 8 X  10-5/°C.
Patent CA-2048392-C (CA)
Title: Superconductive optoelectronic devices with the basic substance bi2o3 ofsuperconductive-conjugate photoconductivity
Inventor: MASUMI TAIZO
IPC: H01L31/08
Filed: 1991-08-02
Granted: 1997-10-14
Abstract: The disclosed superconductive optoelectronic device with the basic substance Bi2O3 or Bi2O3;M2+ (M=Ca,Sr,Cu) of superconductive-conjugate photoconductivity has a substrate, a photoconductive gate region formed on the substrate, and a source region and a drain region formed on the substrate at opposite sides of the gate region so as to face toward each other across the gate region.  The source region and the drain region are made of a Bi-based superconductive material.  The gate region is made of such the basic material Bi2O3 or Bi2O3;M2+ (M=Ca,Sr,Cu) of superconductive-conjugate photoconductivity, which reveals photoconductivity at a temperature below the transition temperature of the above relevant Bi-based superconductive material.  Also disclosed are superconductive optoelectronic devices formed of an organized integration of the above superconductive optoelectronic devices to develop effectively a new field of "Superconductive Optoelectronics".
Patent CA-2048896-C (CA)
Title: Fluoroethylcamptothecin derivatives
Inventor: ASAHINA YOSHIKAZU
IPC: C07D491/147
Filed: 1991-08-09
Granted: 1999-11-16
Abstract: A novel compound representing the general formula (I) as below:    The compound has antineoplastic activities and low toxicity.      Pyranoindolizine derivative having the general fromulas (II) or (III) below:    And a process for producing the pyranoindolizine derivative.
Patent CA-2051896-C (CA)
Title: Composite shafts
Inventor: JASKOWIAK TIMOTHY R
IPC: F16C3/02
Filed: 1991-09-19
Granted: 1996-11-05
Abstract: A shaft assembly comprising an elongated member having at least a portion which is hollow, tubular, shell like having an inside surface defining a shaft core and an outside surface defining a shaft functional surface, the shaft core being filled with a hardened, moldable material, and the shaft functional surface having at least one functional feature thereon, which is of hardened, moldable material integrally molded with the hardened, moldable material in the shaft core. In a preferred embodiment the shaft assembly is rotatable and has at least one molding aperture gate extending through the shaft from the inside surface to the outside surface which is filled with hardened, moldable material which connects the hardened material in the shaft core and functional feature.
Patent CA-2059584-C (CA)
Inventor: ROEDERER ANTOINE
IPC: H01Q21/20
Filed: 1992-01-17
Granted: 1995-09-05
Abstract: Ce dispositif comprend: un réseau (10) de N radiateurs, subdivisé en P sous-réseaux (A, B, C, D) de M radiateurs chacun, chaque faisceau du diagramme spécifié utilisant une pluralité de radiateurs choisis parmi les radiateurs d'au moins certains des sous-réseaux; une source (20) de signal, commune; des moyens diviseurs de puissance (40), à une entrée et N sorties, pour distribuer le signal délivré par la source; des moyens (30) pour amplifier ledit signal; et des moyens pour exciter sélectivement par le signal amplifié, avec un déphasage contrôlé, au moins certains des radiateurs de manière à obtenir le diagramme de rayonnement spécifié, Selon l'invention il est prévu, entre les moyens diviseurs de puissance et les radiateurs; P groupes de M modules déphaseurs-ampli-ficateurs (30, 60), placés en sortie des moyens diviseurs de puissance; et P coupleurs (80) à M entrées et M sorties chacun, ces M entrées étant reliées aux M sorties correspondantes du groupe de modules déphaseurs-amplificateurs associé, et ces M sorties étant reliées aux M radiateurs du sous-réseau associé. Le déphasage des modules déphaseurs-amplificateurs est choisi de manière à diriger la puissance délivrée par la source vers les radiateurs participant au diagramme de rayonnement spécifié, et à réalisier ainsi une amplification répartie du signal émis par la source en maintenant sur chaque amplificateur une charge essentiellement identique et constante quelles que soient les modifications apportées au diagramme.
Patent CA-2059808-C (CA)
Title: Catalyst for the production of aromatic hydrocarbons and process for producing aromatic hydrocarbons by the use thereof
Inventor: KATSUNO HISASHI
IPC: C07C2/12
Filed: 1992-01-22
Granted: 1999-01-19
Abstract: There are disclosed a catalyst obtainable by the simple manufacturing process, having a high and persistent catalytic activity for a long-term production of aromatic hydrocarbon and a process for efficiently producing aromatic hydrocarbons from nonaromatic hydrocarbon by the use of the catalyst.  The catalyst comprises L-type zeolite with both platinum components and halogen components simultaneously supported thereon, and is capable of producing aromatic hydrocarbons over a long-term stable operation with a high yield and high activity.
Patent CA-2064528-C (CA)
Title: Automatic camera focusing device
Inventor: NAKAMURA TAKAHIRO
IPC: G03B13/36
Filed: 1992-03-31
Granted: 1999-01-26
Abstract: An automatic focusing device includes a movable lens group by which movement a focused field of an object changes, a  drive  motor  for  moving  the  lens  group,  a  luminance processing circuit for image sensing the object through the lens group to extract a luminance signal,  an accumulating circuit for outputting a focusing evaluation value signal for evaluating a focal condition of the object on the basis of the  extracted  luminance  signal,   an  LSC  circuit  for determining reliability of the outputted focusing evaluation value signal, and a control circuit for controlling the drive motor to improve the focal condition of the object on the basis of the determined reliability.
Patent CA-2065273-C (CA)
Inventor: HAIGH LEONARD
IPC: A01K91/18
Filed: 1991-07-23
Granted: 2001-02-06
Abstract: Elément de fixation (12) servant à relier un avançon (15) à une ligne (10), ledit élément (12) comprenant un manchon (50) conçu pour être monté rotatif sur la ligne (10) et possédant des moyens de fixation (16, 17, 18) permettant de relier un avançon (15) au manchon (50).
Patent CA-2072014-C (CA)
Title: Lightweight sealed circuit board assembly
Inventor: GARNER RONALD N
IPC: H05K7/14
Filed: 1990-12-19
Granted: 2001-10-23
Abstract: An integrated circuit board assembly includes two integrated circuit boards. The integrated circuit boards have an electronic circuitry configured on the interior face and a dielectric sealant on the other face. The integrated circuit boards are secured to a frame in such a manner that the interior faces of the integrated circuit boards face inward toward each other. The securing of the frame to the integrated circuit boards is such that it forms a sealed enclosure protecting the electronic circuitry configured therein from the process environment. The exterior faces, however, are exposed to the process environment and are helpful in dissipating heat to the exterior environment.
Patent CA-2072854-C (CA)
Title: Adjustable film forming apparatus
Inventor: UDELSON S WARREN
IPC: B65B9/06
Filed: 1992-06-30
Granted: 2002-09-17
Abstract: An adjustable film forming apparatus for receiving unfolded film and forming the unfolded film into a tubular form for packaging different sizes of articles. An angled guide rod receives respective portions of the web to form a flat bottom and cooperating with an angled member mounted above the flat bottom forms the top, closed side and opposite open side of the film tube for receiving articles to be packaged. An adjustable film forming table receives the flat bottom portion of the web. Self-positioning means are provided to floatably mount one end of the angled guide rod so as to reposition the guide rod in conformance with changes in the angled member to accommodate different article heights. A side sealer packaging machine with an in-feed conveyor, adjustable film forming apparatus, a side sealer, and an end sealer.
Patent CA-2075859-C (CA)
Title: Laser disk player
Inventor: LEE CHUNG GEU
IPC: G11B17/035
Filed: 1992-08-12
Granted: 1999-10-19
Abstract: A laser disk player which can sequentially perform the loading and chucking operations of a disk tray and the tilting operation of an optical apparatus by transferring the rotary power of a main motor to a rotary member is disclosed. The laser side player comprises a chucking apparatus mounted at a chassis for performing the loading and chucking operation of a disk tray, a rotary member for sliding the disk tray by rotation of first and second tray gears receiving the rotary power of a main motor, a lever operated in response to the motion of the rotary member for chucking a disk by guiding a bracket tray of the chucking apparatus using a side plate, and a tilt gear mounted on a deck and engaged with the rotary member for tilting an optical apparatus, wherein the management of assembly part is simplified so that the productivity is improved and the production cost is reduced.
Patent CA-2080523-C (CA)
Title: Wiper device for a motor vehicle rear view mirror
Inventor: HAN IVAN
IPC: B60S1/56
Filed: 1992-10-14
Granted: 1996-02-06
Abstract: A wiper device for cleaning a motor vehicle rear view mirror is provided.  The wiper device includes a water sprayer unit connected to a motor vehicle's windshield washer to spray water over a motor vehicle's rear view mirror.  A wiper fastened between two slides is driven by a  motor  by  means  of  a  pull  wire  extending  to  an intermediate pair of pulley wheels in a cross-over manner to remove water and dust from the rear view mirror.   A control circuit is provided to drive the motor, allowing for a  voltage polarity reversal  to  change  its  rotary direction.
Patent CA-2080907-C (CA)
Title: Enzymatic synthesis of soluble phosphatides from phospholipids
Inventor: TREMBLAY PAUL A
IPC: A61K9/127
Filed: 1991-04-16
Granted: 2001-08-14
Abstract: A method of preparing a soluble monovalent salt of a phosphatidyl ester which comprises reacting a phospholipid with a primary alcohol in the presence of an enzyme catalyst in a divalent cationic buffered solution and a water immiscible non-ether solvent that does not inactivate the enzyme, to form a divalent cationic salt of the phosphatidyl ester, and suspending the product in the presence of a stoichiometric amount of a monovalent cationic salt whose anion forms an insoluble salt with the divalent cation. The use of Centrifugal Partition Chromatography facilitates the enzyme reaction. The monovalent salt is preferably an ammonium/sodium mixed salt. Phosphatidyl ester salts prepared by processes disclosed herein are useful products for making liposomes and lipid-based complexes.
Patent CA-2082349-C (CA)
Title: Water-dispersible polyisocyanate mixtures and their use in two-component aqueous compositions
Inventor: JACOBS PATRICIA B
IPC: C08L75/08
Filed: 1992-11-06
Granted: 2005-10-25
Abstract: The present invention relates to water-dispersible polyisocyanate mixtures which a) have an average isocyanate functionality of 1.8 to 6, b) contain (cyclo)aliphatically bound isocyanate groups and c) contain 2 to 20% by weight of ethylene oxide units (calculated as C2H4O, molecular weight = 44) arranged within polyether chains, wherein the ethylene oxide portion of the polyether chains has a molecular weight of 200 to 1000 and the total molecular weight of the polyether chains is 200 to 1500, provided that when the polyether chain is initiated with glycerine dimethyl ketal, the content of ethylene oxide units is at least 10% by weight.      The present invention also relates to aqueous two-component compositions containing these polyisocyanate mixtures and aqueous resins having isocyanate-reactive groups.
Patent CA-2082666-C (CA)
Title: Interlocking retaining walls blocks and system
Inventor: HAMMER JAMES
IPC: E02D29/02
Filed: 1992-11-12
Granted: 2002-12-10
Abstract: INTERLOCKING RETAINING WALLS BLOCKS AND SYSTEM      ABSTRACT OF THE INVENTION        A retaining wall system is constructed in several distinct layers. Each layer is formed of a side-by-side arrangement of I-shaped subassemblies with backfill chambers defined between each pair of subassemblies.        Each subassembly is constructed of generally planar elongated concrete blocks which interconnect to laterally secure the blocks to one another.        Interconnections are provided by dovetail joints in which a tongue is vertically slid into a groove to prevent lateral separation. The dovetail elements extend only partially across the face of each block so that the block defining the groove is not excessively weakened by the groove.
Patent CA-2087834-C (CA)
Inventor: MELTZER MARK J
IPC: B29C65/06
Filed: 1991-07-22
Granted: 2003-01-28
Abstract: An apparatus (21) for forming a butt seam between opposed edges of resiliently compressible fabric sheets (28, 29), such as foamed neoprene for wet suits and dry suits. The apparatus (21) includes fabric manipulating assembly (23) which continuously compresses the sheets proximate and inwardly of the edges (32, 33), preferably by a roller assembly (26, 27), to form opposed shoulders or areas (43, 44) that will permit the application of a lateral force to firmly press the opposed edges (32, 33) of the flexi-ble and compressible sheets (28, 29) tightly together during movement and bonding along the seam. The apparatus (21) preferably includes adhesive activation means (24) in the form of an ultrasonic transducer (91) which contacts the neoprene pieces in adv-ance of compression rollers (26, 27) to activate a dry neoprene cement carried on the edges of the fabric pieces. A method for forming the butt seam is described, as are alternatively adhesive activating assemblies and a seamed neoprene fabric sheet.
Patent CA-2088565-C (CA)
Inventor: HAYDEN ALFRED PATRICK
IPC: B01F15/04
Filed: 1993-02-01
Granted: 2001-04-03
Abstract: An injection system and method for blending an additive into a main fluid flow stream at a controlled ratio, characterized by a controller wherein the electrical circuitry thereof is contained in an explosion-proof housing having a window through which electromagnetic energy, such as an infrared command signal, can be transmitted. The circuitry contained within the explosion-proof housing includes a receiver for receiving the electromagnetic energy transmitted through the window and a processor or processors for decoding information include in the electromagnetic energy and for carrying out one or more functions based on such information. Also disclosed is an additive injection correction technique, a clean line technique and related and other features of the system and method.
Patent CA-2090935-C (CA)
Inventor: ROZOV LEONID A
IPC: C07C43/12
Filed: 1993-03-03
Granted: 2004-12-07
Abstract: An improved process for the production of isoflurane is disclosed.      Isoflurane is formed by the exhaustive chlorination of 2,2,2-trifluoro-ethyl difluoromethyl ether with chlorine gas. The reaction mixture, preferably without purification or refining, is treated with UV light in the presence of isopropanol to reduce 1,1-dichloro-2,2,2-trifluoroethyl difluoromethyl ether, the other major component thereof, to isoflurane.      Isoflurane is thereby obtained in yields of at least 80%.
Patent CA-2091393-C (CA)
Title: Method and apparatus for providing a personal locator, access control and asset tracking service using an in-building telephone network
Inventor: MUFTI SOHALE AZIZ
IPC: H04W12/00
Filed: 1993-03-10
Granted: 1999-03-23
Abstract: A system for providing a personal location, access control and asset tracking service using an in-building telephone network is disclosed. In a first embodiment, users of ID badges containing an RF transmitter can be located across the telephone network for receiving incoming calls. Receiver units in or near telephone sets instruct the system of the identity of the user located near the telephone set. In another embodiment, access to a building or rooms therein is controlled according to the identity of the ID badge wearer. Similar receiver units located at building and room entrances receive the RF transmission from the ID badge to allow or deny access to the rooms or building. In a third embodiment, ID tags placed on material assets permit the system user to monitor the movement and location of specific material assets associated with that ID tag. The ID tag also contains an RF transmitter which is used to transmit an RF burst to receiver units located across the telephone network.
Patent CA-2092835-C (CA)
Inventor: BODIN ROLAND STIG
IPC: H04B7/26
Filed: 1993-03-29
Granted: 2003-05-20
Abstract: In a cellular telephone system of the type having TDMA channels, the beginnings of the time slots of an upli~~ transmission are offset from the beginnings of the time slots of a downlink transmission by a predetermined amount. By offsetting the beginnings of the time slots, a mobile station is able to operate at an extended distance from the base station without any modifications to the mobile station. Because the mobile stations can operate at a greater distance from the base station without a decrease in the number of available channels, the cellular telephone system is particularly suitable for use in rural areas or coastal areas.
Patent CA-2092912-C (CA)
Title: Transmission of data in boreholes
Inventor: SMITH DAVID BALFOUR
IPC: G08C23/02
Filed: 1991-09-18
Granted: 2002-07-23
Abstract: Data is transmitted along a borehole containing a drill stem (2) by means of a transmitter (6) which converts electric data signals to acoustic signals propagating along he drill stern (2). The acoustic sig-nals are converted back to electric form by a receiver (12) which also processes the signals. In the preferred form the signals are stored in a receiver memory (15) for subsequent retrieval using a pick-up tool (5) lowered into the borehole. The system is particularly useful in moving data past an obstruction such as a shut-in valve (4).
Patent CA-2093251-C (CA)
Inventor: COUTTS JENNIFER RUTH
IPC: C09D7/12
Filed: 1993-04-02
Granted: 1997-06-03
Abstract: For paints and the like, an aqueous tinter which does not block dispensing nozzles and which has a viscosity of from 0.05 to 1.5 Ns/m2 (20°C) and which contains pigment particles, water, micellising dispersant and a non-micellising auxiliary material. The weight ratio of dispersant to pigment must exceed the ratio which would be present at the Daniel Flow Point for a notional tinter consisting only of the pigment, water and the dispersant.  The amount of auxiliary material must be sufficient to enable the tinter to be expelled through a bore 2mm in diameter and 15mm long by a pressure of not more than 320 MN/m after storage in the bore at 25°C for 18 hours under a relative humidity of 50%.  Preferred dispersants comprise long chain hydrophilic and long chain hydrophobic moieties which may  be poly(alkylene glycol) esters of long chain fatty acids or hydrophobic backbone copolymers with pendant poly(alkylene glycol) moieties as hydrophilic side chains.
Patent CA-2102576-C (CA)
Inventor: LISTEMANN MARK LEO
IPC: B01J31/22
Filed: 1993-11-05
Granted: 1996-12-10
Abstract: The present invention relates to a process for preparing acetals and hemiacetal esters which comprises reacting a vinyl ester and an alcohol in the presence of a solvent having a dielectric constant of between about 15 and about 50 and an effective amount of palladium- or platinum-containing catalyst, in the absence of an active support, under reaction conditions sufficient to form the acetal or hemiacetal ester and recovering the acetal or hemiacetal ester.
Patent CA-2106455-C (CA)
Inventor: HARE GERARD M
IPC: A01K87/00
Filed: 1993-09-17
Granted: 2002-04-02
Abstract: A fishing rod in which the line passes internally through a hollow shaft and wherein the shaft includes a plurality of perforations spaced longitudinally along the shaft. The perforations serve to reduce wetness within the shaft, and the reduction in wetness reduces friction and drag between the line and the internal surface of the hollow shaft. The internal surface of the shaft may be provided with one or more coatings of materials such as water repellent, anti-frictional, reinforcing and/or wear resistant materials to further enhance properties such as the dispersal of water, reduction of friction and the structural integrity of the rod.
Patent CA-2113776-C (CA)
Inventor: ROUSSEL PATRICK
IPC: C07B61/00
Filed: 1994-01-19
Granted: 2004-10-05
Abstract: The invention relates to a new process for the preparation of the compounds of formula (I): <IMAGE> in which the A and B rings represent a 3-keto  DELTA 4 6-R3 residue, optionally in protected form at 3, or a 3-keto  DELTA 1,4 6-R3 residue, R is methyl or -CH2OR' where R' is hydrogen or an ether or ester residue, R1 and R2 form a  beta  epoxide or a second bond, or R1 is hydrogen, ketone or  alpha  or  beta  hydroxyl, optionally in etherified or esterified form, and R2 is hydrogen, or R1 is hydrogen and R2 is  alpha -hydroxy, or R1 is an optionally etherified or esterified  beta -hydroxy and R2 is an  alpha  fluorine or bromine, R3 is hydrogen or an  alpha  or  beta  fluorine or methyl, according to which a  DELTA 16(17) derivative is treated with a methylating agent, followed by hydrolysis of the 16 alpha -methylated enolate and oxidation of the enol obtained. The compounds (I) are known anti-inflammatory agents or possible precursors.
Patent CA-2114930-C (CA)
Title: Method and apparatus for dynamic bandwidth allocation in a digital communication session
Inventor: DUNCANSON JAY P
IPC: H04L69/14
Filed: 1992-08-07
Granted: 2000-09-19
Abstract: A dynamic and automatic method and apparatus for changing the bandwidth of a digital communication session is disclosed. The communication session uses a plurality of channels (28, 30, 32;  34, 36, 38) for transmitting digital data between a first location and a second location. The rate of data or non-data characters in the transmitting digital data stream is detected. A utilization parameter is calculated by dividing the non-data rate by the overall transmission data rate. The number of the plurality channels (28-38) is changed to maintain the utilization parameter in response to changes in the data rate.