baber/WOPTO huggingface dataset:
Patent CA-2016943-C (CA)
Title: Long keybutton stabilizer
Inventor: ABELL WILLIAM A JR
IPC: H01H3/12
Filed: 1990-05-16
Granted: 1995-10-10
Abstract: A long keybutton is stabilized with a pair of arms and an interconnecting shaft.  The ends of the arms are connected to  the  keybutton using  a  thin  serpentine  section which distributes stress and forces to improve life of the part, and permits integral molded keybuttons.  The integral molded part with the stability of the portions of the keybutton permits the automated assembly of the stabilized keybutton with the keyboard frame.
Patent CA-2019426-C (CA)
Inventor: LEWIS LYNETTE A
IPC: G01N33/50
Filed: 1990-06-20
Granted: 2000-12-19
Abstract: Use of a lithium salt, particularly lithium thiocyanate, as an agent for lysing red blood cells and denaturing hemoglobin in the performance of an immunoassay to detect the relative amount of a hemoglobin derivative in a blood sample. The method is particularly useful in the determination of hemoglobin Alc. The method provides a rapid means for releasing hemoglobin from red blood cells by lysis and for exposing the epitope that is characteristic of the Alc form. Low concentrations of the lithium salt provide rapid release and denaturation of hemoglobin without the need for dilution prior to the performance of the immunoassay.
Patent CA-2024753-C (CA)
Inventor: TANAKA HARUO
IPC: B23Q7/02
Filed: 1990-09-06
Granted: 1994-04-05
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus  for assembling workpieces  in which an assembling work is performed which comprises a workpiece setting jig, a setting station including a workpiece setting apparatus for setting  a  first workpiece  on the workpiece  setting  jig,  an assembling station including an assembling unit for assembling a second workpiece with the first workpiece on the workpiece setting jig, a welding station including a welding unit for welding the first and the second workpieces together, a discharging station including a discharging unit for taking the welded workpieces out of the workpiece setting jig, a charging station provided in a position which faces the setting station as seen in the direction of sending and withdrawing the workpiece setting jig.  The charging station,  the assembling station,  the welding station and the discharging station being arranged in a circular form.  A mechanism is provided for circulating the workpiece setting jig among the charging station, the assembling station, the welding station and the discharging station in sequence.   A mechanism is provided for reciprocating the workpiece setting jig between the setting station and the charging station.   The method of assembling workpieces comprises disposing the charging station in a position facing the setting station, and disposing the charging station, the assembling station, the welding station, and the discharging station in a circular form to a side of the setting station;  setting a first workpiece on the jig at the setting station; transferring the jig from the setting station to the charging station; intermittently transferring in sequence (2) the jig from the charging station to the assembling station, the welding station and the discharging station; assembling a second workpiece with the first workpiece which has been set on the jig while the jig is at the assembly station; welding the first and the second workpieces together at the welding station; discharging the welded workpieces off the jig while at the discharge station; and returning the emptied jig from the charging station to the setting station.
Patent CA-2025737-C (CA)
Title: Haloethylation of aromatic hydrocarbons
Inventor: STAHLY BARBARA C
IPC: C07B61/00
Filed: 1990-09-19
Granted: 2000-11-21
Abstract: A monoalkylaromatic hydrocarbon is haloethylated to a 1-halo-1-arylethane with minimal co-formation of diarylalkane and acetaldehyde by-products by reacting it with hydrogen chloride or bromide and a stoichiometric deficit of acetaldehyde in the presence of sulfuric acid in an amount such as to provide at least two mols of hydrogen sulfate per mol of acetaldehyde and less than 1.5 mols of hydrogen sulfate per mol of the monoalkylaromatic hydrocarbon.
Patent CA-2025971-C (CA)
Title: Inertial navigation sensor integrated obstacle detection system
Inventor: BHANU BIR
IPC: G01S13/935
Filed: 1990-09-21
Granted: 2000-12-26
Abstract: A system that incorporates inertial sensor information into optical flow computations to detect obstacles and to provide alternative navigational paths free from obstacles. The system is a maximally passive obstacle detection system that makes selective use of an active sensor, The active detection typically utilizes a laser. Passive sensor suite includes binocular stereo, motion stereo and variable fields-of-view. Optical flow computations involve extraction, denotation and matching of interest points from sequential frames of imagery, for range interpolation of the sensed scene, which in turn provides obstacle information for purposes of safe navigation.
Patent CA-2031061-C (CA)
Inventor: HARLEY DAVID NORMAN
IPC: F16M11/08
Filed: 1990-11-28
Granted: 1996-05-07
Abstract: A  turntable  element  (10)  is  disclosed  which comprises a substantially flat bearing holder (16) and a  plurality  of  bearing  members  (22)  which  are rotatably  engaged  in  respective  apertures  (24) extending inwardly towards the centre of rotation of the turntable element (10) from the outer edge of the bearing holder  (16).   The bearing members  (22)  are rotatably  engaged  in  their  apertures  (24)  by cooperating  retaining  portions  (28,30,34)  on  the bearing  holder  (16)  and bearing members  (22).    A method of making such a turntable element (10) with the  bearing  holder  (16)  and  bearing members  (22) formed as an integral body is also disclosed.  In the method the bearing members  (22)  are linked to the bearing holder (16) by frangible portions (36) which are broken by forcibly displacing the bearing members (22)  to bring them into their rotatable engagement with the bearing holder (16).
Patent CA-2044294-C (CA)
Title: Impact hammer support and driving tool
Inventor: REX ALBERT EDWARD
IPC: B25C1/04
Filed: 1991-06-11
Granted: 1996-12-03
Abstract: An impact hammer support 10 to be used in conjunction with an impact hammer 11 to aid in inserting a spike or fastener 12 into a wooden sleeper or cross tie 13.  The support has a guide bushing 15 to slidably receive the driving tool 14.  Attached to the bushing 15 is a bracket 19 which is pivotally supported by a foot pedal 23 to be engaged by the user.  The impact hammer support 10 has the object of aiding in alignment of the impact hammer 11 with the spike or fastener 12.
Patent CA-2045051-C (CA)
Title: Low voltage electrical switchgear cabinet
Inventor: BUET JACQUES
IPC: H02B1/40
Filed: 1991-06-20
Granted: 2001-12-25
Abstract: An electrical switchgear cabinet comprises a frame (21), formed by uprights (22, 23) and switchgear support rails (24), which is fixed to props (29) securedly united to a back plate (10). The sides (11, 12) of the back plate (10) are folded forwards over a limited height smaller than the distance between the rails (24) and the back plate (10), so as to define with the ends of these rails (24) trunkings for the cable, to run facilitating connection to the switchgear. The back plate (10) bears two blanking plates (18, 19) which extend over the whole width of the cabinet and an enclosure (15) can be fitted on the sides (11, 12) to cover the frame (21) and the switchgear supported by this frame. The props (29) serve the purpose of fixing the uprights (22, 23) and enclosure (15) and comprise lateral flanges enabling the back plate (10) to be fixed to the wall.      These lateral flanges comprise a guide for the bit for drilling the holes in the wall and a device to make up for drilling deviations.
Patent CA-2056982-C (CA)
Title: Powder compositions for primer coatings suitable for pvdf-based top coatings
Inventor: RIJKSE LUDWIG K
IPC: C09D5/03
Filed: 1990-06-22
Granted: 2001-08-21
Abstract: Powder compositions comprising 5-15 wt % of PYdF-compatible thermoplastic resin, 50-90 wt % of a thermosetting binder system, 0-35 wt % of pigments and 0-3 wt % of levelling agent are suitable for later application of a pigmented PYdF-based top coating. Preferred compositions are based on an epoxy system containing about 8 wt % of PYdF or acrylic thermoplastic resin, 5-25 wt % of pigments and 0.7-1 wt % of levelling agent.
Patent CA-2063793-C (CA)
Inventor: HOPPER ROBERT WILLIAM
IPC: H04N7/14
Filed: 1990-08-09
Granted: 1998-07-07
Abstract: Chaque ligne d'un signal de télévision comporte une séquence d'échantillons entrelacés de luminance et de chrominance dans un format donné (Y0U0Y1V0, etc.), qui sont écrits dans un registre d'une ligne (1) selon une première séquence d'adresse, puis lus selon une seconde séquence d'adresse, de sorte que les échantillons de luminance se situent dans l'ordre inverse (comme dans le cas de la chrominance); leur entrelacement est toutefois conforme au format donné.  La seconde séquence d'adresse est également utilisée pour l'écriture sur la ligne d'entrée suivante, qui est ensuite lue à l'aide de la première séquence, les deux séquences alternant tout au long d'une période de champ.  Utile en vidéotéléphonie et en vidéoconférence.
Patent CA-2064478-C (CA)
Title: Ophthalmic composition
Inventor: CLARK ABBOT F
IPC: A61K31/57
Filed: 1990-07-25
Granted: 2002-07-02
Abstract: Pharmaceutical compositions useful in the treatment of ophthalmic inflammation and methods of treating ophthalmic in-flammation with those compositions ar disclosed. The compositions contain a combination of a glucocorticoid and an angiostatic steroid. The angiostatic steroid substantially prevents any significant increases in intraocular pressure which might otherwise he experienced by the patient as a side effect of the glucocorticoid component of the compositions. The therapeutic interaction of the two components therefore allows the potent anti-inflammatory properties of the glucocorticoids to be utilized without fear of ele-vating intraocular pressure.
Patent CA-2069703-C (CA)
Inventor: KAGAWA SEIJI
IPC: B01D69/00
Filed: 1992-05-27
Granted: 1995-09-19
Abstract: A gas permeability control film having a barrier property against water, bacteria, and viruses, an oxygen gas permeation amount controlled to fall within the range of 103 to 107 cc/m2?24 hours?25°C, and a controlled carbon dioxide gas permeation amount.  The gas permeability control film has an organic film in which non-through pores having an average opening width falling within the range of 0.5 µm to 150 µm are formed at a density of 500 to 200,000 pores/cm2.
Patent CA-2070637-C (CA)
Inventor: DICKEY ERIC R
IPC: G02B5/28
Filed: 1991-10-10
Granted: 2002-02-12
Abstract: A multilayer antireflection coating (20) designed for deposition in in-line coating machines by DC reactive sputtering. About half of the total thickness of the coating (20) may be formed from zinc oxide which has a high sputtering rate.
Patent CA-2079634-C (CA)
Title: Integrated process for the production of alkali and alkaline earth metal chlorates and chlorine dioxide
Inventor: JACKSON JOHN R
IPC: C25B1/26
Filed: 1992-10-01
Granted: 1995-05-30
Abstract: In an integrated methanol chlorine dioxide process for the production of alkali or alkaline earth metal chlorates and chlorine dioxide, chromium compound impurities (that reduce chlorine dioxide generating process efficiency) in the alkali or alkaline earth metal chlorate aqueous solution produced by an electrochemical cell are removed and recycled to said electrochemical cell. A substantially chromium compound free (about 10 parts per million or less chromium ions) alkali or alkaline earth metal chlorate is converted to chlorine dioxide and by-products; and the by-products are converted to substantially chlorine-free carbon dioxide, which is vented, and a dilute solution of an alkali or alkaline earth metal chlorate, which is recycled to the electrochemical cell. The chromium compounds present in an aqueous solution of alkali or alkaline earth metal chlorate, are removed by reacting the chromium compounds with a reducing agent consisting of hydroxylamine, an addition compound thereof and salt thereof so as to form a precipitate which is removed and an aqueous solution of an alkali or alkaline earth metal chlorate, which is substantially free of chromium compounds, is reacted with an acid and methanol to produce chlorine dioxide and alkali or alkaline earth metalhypochlorite and carbonate by-products, and the by-products are converted to carbon dioxide and a dilute solution of an alkali or alkaline earth metal chlorate by reacting the by-products with an acid or an acid gas.
Patent CA-2081070-C (CA)
Title: Buoyant controlled release powder formulation
Inventor: DENNIS ANDREW
IPC: A61K47/36
Filed: 1992-10-21
Granted: 2002-12-24
Abstract: A buoyant controlled release pharmaceutical powder formulation is provided which may be filled into capsules and releases a pharmaceutical of a basic character at a controlled rate regardless of the pH of the environment, which formulation includes a basic pharmaceutical, up to about 45% by weight of a pH dependent polymer which is a salt of alginic acid, such as sodium alginate, up to about 35% by weight of a pH-independent hydrocarbon gelling agent having a viscosity of up to about 100,000,centipoises in 2% solution at 20°C and excipients.
Patent CA-2081449-C (CA)
Inventor: FAIMAN ROBERT NEIL JR
IPC: G06F9/45
Filed: 1992-02-18
Granted: 1999-04-13
Abstract: Programme compilateur "framework" utilisant un système expert générique ou un mécanisme de régulation et de classement, et un processeur dorsal générique (dans lequel le générateur de code a un récepteur spécifique). Le processeur dorsal générique regroupe les fonctions d'optimisation, d'allocation de registre et de mémoire et de génération de code. Le système expert générique peut être réalisé sur divers ordinateurs centraux et la fonction génération de code du processeur dorsal peut être ciblée en fonction de l'une quelconque de plusieurs architectures d'ordinateur. Un processeur frontal est adapté à chacun des différents langages source, tels que Cobolt, le Fortran, le Pascal, C, C++, Ada, etc. Ce processeur frontal balaie et analyse les modules codes sources puis élabore à partir de ceux-ci une représentation en langage intermédiaire ("IL") des programmes exprimés dans le code source. Ce langage IL est conçu de manière à représenter l'un quelconque des langages code source de manière universelle, de telle sorte que l'interface entre le processeur frontal et le processeur dorsal se présente sous une forme standard et n'a pas besoin d'être réécrit pour chacun des processeurs frontaux à langage spécifique. La représentation IL produite par le processeur frontal est basée sur un nuplet en tant qu'élément de base, dans lequel chaque nuplet représente une opération unique à effectuer -charge, mise en mémoire, addition, étiquettage, branchement, etc. Une structure de données est élaborée par le processeur frontal pour chaque nuplet, avec des champs pour les diverses informations nécessaires. Une des caractéristiques de l'invention réside dans un mécanisme de représntation des effets et des dépendances dans l'interface entre le processeur frontal et le processeur dorsal; un nuplet produit un effet s'il écrit dans la mémoire et présente une dépendance s'il lit à partir d'un emplacement vers lequel un autre noeud peut écrire. Un mécanisme indépendant du langage source est prévu pour décrire les effets de l'exécution des programmes. Une autre caractéristique réside dans l'utilisation, dans la partie optimisation du programme compilateur d'une méthode d'analyse des variables d'induction, dans le cadre de laquelle l'amélioration consiste à utiliser les ensembles d'effets secondaires pour élaborer les ensembles IDEF. Une autre caractéristique réside dans le mécanisme de "repliages constants" (désigné par des expressions "K-folding ou KFOLD routine") constituant l'une des optimisations. Une autre caractéristique réside dans le mécanisme de définition de type, autrement désigné "module TD", qui prévoit que les mécanismes utilisés par le processeur frontal et par le programme compilateur du processeur dorsal, dans l'information type de programme de construction, doivent être incorporés dans un module objet à l'usage d'un éditeur de lien ou d'un metteur au point. Une dernière caractéristique réside dans la méthode de génération de code d'instruction basé sur des gabarits de code selon une procédure multipasse.
Patent CA-2086186-C (CA)
Title: Stud
Inventor: MUSSELMAN JAMES R
IPC: B62D55/26
Filed: 1992-12-23
Granted: 1995-08-15
Abstract: A stud for snowmobiles and the like including an elongate shank and an integral, transversely disposed head.  The shank may be mounted in an aperture provided in an endless snowmobile drive track with the head engaging one side of the snowmobile track.  A fastener is detachably mounted on the shank for engaging the opposite side of the track.  The head includes a concavo-convex flange having a concave inner surface for radially inwardly urging a portion of the track which is adjacent the shank and which is axially displaced when the head is mounted on the track.  The head also includes an axially outer surface having an axially inwardly extending,  central recess having a radius of curvature which matches the radius of the snowmobile track drive wheels.
Patent CA-2089148-C (CA)
Inventor: HASEGAWA MASAKATSU
IPC: C07D239/60
Filed: 1992-06-08
Granted: 2003-08-05
Abstract: An oxidized complex comprising a water-soluble carboxypolysaccharide and magnetic iron oxide, which is characterized by being obtained by oxidizing a complex comprising a water-soluble carboxypolysaccharide and magnetic iron oxide. Said oxidized complex has very low toxicity, is very stable, exhibits little or no blood pressure-reducing action and has low platelets-aggregating action when administered directly into the blood vessels of animals, and is useful in medical fields such as contrast medium for magnetic resonance imaging, exothermic medium for hyperthermia and the like.
Patent CA-2093039-C (CA)
Title: Drill section of a drilling tool
Inventor: COLLINSWORTH STEPHEN M
IPC: E21B17/00
Filed: 1993-03-31
Granted: 1996-08-13
Abstract: A drill section includes a hollow tube having a reduced portion of a box disposed in each end.  Each box is welded to the hollow tube by a circumferential weld extending around an angled portion connecting the reduced portion of the box to a portion of the box having the same outer diameter as the hollow tube.  There preferably is welding of the reduced portion of the box to the hollow tube through three equally angularly spaced slots at each end of the hollow tube.  A break out ring is disposed on a threaded pin of a tool joint between the box, which has a threaded recess extending inwardly from its end to receive the threaded pin to attach the tool joint to the box, and an annular surface of the tool joint.  A protective sleeve on the box has an annular end surface at the same angle to its longitudinal axis as an annular end surface of a collar, which is welded to the box, and held thereagainst by the tool joint attached to the box.  One tool joint has a threaded recess, and the other tool joint has a threaded pin, which extends into the threaded recess of the tool joint of the drill section above it while the threaded recess in the tool joint receives the threaded pin of the tool joint of the drill section beneath it or the threaded end of a drill bit sub.
Patent CA-2096251-C (CA)
Inventor: FRANTZEN FRANK
IPC: G01N33/58
Filed: 1991-11-13
Granted: 1999-08-17
Abstract: Agents de marquage comprenant des conjugués d'acide borique non-protéinique présentant une valeur maximale d'absorption supérieure ou égale à 600 nm, ledit marquage étant produit notamment par un colorant à base d'azine, de triphénylméthane, de cyanine ou de phthalocyanine. Ces agents sont utiles à l'estimation et à la quantification de cis-diols tels que l'hémoglobine glycosylée, en raison de l'absence pratiquement totale de chevauchement avec le spectre d'absorption d'hémoglobine. Des colorants à base d'oxazine et de thiazine présentant des caractéristiques d'absorption similaires et contenant d'autres fractions activées constituent pareillement des agents de marquage utiles, en particulier en présence d'hémoglobine.
Patent CA-2098452-C (CA)
Inventor: PIRAS BERNARD
IPC: B25D17/08
Filed: 1993-06-15
Granted: 1997-11-04
Abstract: This device is of the type in which the tool (5) is mounted so that it can slide, with the interposition of upper and lower guide means, in a front guide (2). According to the invention, at least one of the guide means (4a) delimits a guide zone the directrix curve of which comprises points of inflection forming corners (10) for separating the facets (12), the zone interacting with a zone of complementary cross-section formed, at least locally, on the tool (5) for wedging this tool in terms of rotation. <IMAGE>
Patent CA-2103225-C (CA)
Inventor: DE WILDE ROBERT M
IPC: C01B21/04
Filed: 1993-11-16
Granted: 1998-01-20
Abstract: The residual oxygen in a partially purified nitrogen stream, as from a membrane or PSA unit, is reacted with a hydrocarbon to provide a protective gas atmosphere of nitrogen, carbon monoxide and hydrogen, either in an externally heated reactor or within the furnace in which the protective gas atmosphere is to be employed.
Patent CA-2108136-C (CA)
Title: Cutting assembly
Inventor: FOSTER CLYDE EARL
IPC: B26D1/00
Filed: 1992-04-03
Granted: 1996-02-20
Abstract: A blade assembly (74) for cutting vegetables, such as potatoes, preparatory to processing into a plurality of helical strips. The assembly includes a vertically disposed central cutting tube (77), a base plate (78) and a plurality of tiers (80, 81, 82, 83, 84) disposed therebetween.  The tiers preferably are helically disposed with respect to the cutting tube and base plate. The blade as-sembly (74) may be utilized in a cutting assembly (10) for cutting articles into helical strips having a holder (57) with at least one longitudinal passage therein, a plurality of inwardly biased members (63) extendable in the passage to align and hold the article against rotation while being cut, and a rotary cutter (58) which includes the blade assembly (74).
Patent CA-2109627-C (CA)
Title: Blowing agent and process for preparing polyurethane foam
Inventor: BARTLETT PHILIP L
IPC: C08G18/00
Filed: 1992-05-15
Granted: 2002-08-13
Abstract: The use of 1,1-difluoroethane (HFC-152a) with a minimum amount of water, preferably in the absence of water, as the blowing agent is disclosed as an efficient route to a rigid closed-cell polyurethane or polyisocyanurate foam of improved cell structure and excellent insulation properties.
Patent CA-2110228-C (CA)
Title: Punching unit for the perforation of sheet-like articles
Inventor: SCHAEDE JOHANNES GEORG
IPC: B31B1/14
Filed: 1993-11-29
Granted: 2002-11-19
Abstract: The vertically upwardly and downwardly movable tool plate (2) of the punching unit is suspended on each of mutually opposite sides from a lever system which has two lower angle levers (4) and one upper angle lever (5), each with a vertical and a horizontal lever arm. The two lower angle levers (4) and the upper angle lever (5) are each rotatable at their angle corners about a fixed axis (8, 11), and their vertical lever arms (4a, 5a) are connected to one another by means of a sliding joint (6).      The horizontal lever arms (4b) of the lower angle levers (4) carry the tool plate (2), and the horizontal lever arms (5b) of the upper angle levers (5) carry counter-weights (16). Mounted between the two lever systems is a double eccentric (15) having diametrically opposite eccentric pins (14, 14') which are connected by means of links (12, 12') to the sliding joint (6) of one lever system or the other respectively, in such a way that, during the rotation of the double eccentric, the tool plate (2) and the counterweights (16) are moved upwards and downwards in opposite directions in order to achieve mass compensation.