baber/WOPTO huggingface dataset:
Patent CA-2177205-A1 (CA)
Title: Low current voltage regulator circuit
Inventor: HELLMAN BENGT HARRY
IPC: G05F1/56
Filed: 1996-05-23
Abstract: A power supply for regulating energy delivered to a power consuming apparatus (12) operating at low current levels includes a power source (16) comprising at least one battery for generating an output voltage greater than a desired operating level. The power supply further includes a voltage regulator circuit (R1) comprising a light emitting diode (LED)(D1).  The light emitting diode, which is preferably configured as a gallium arsenide diode, operates at a substantially constant voltage within a current range of between 10 to 25 micro amps. As a result, reliable and economical voltage regulating circuits can be constructed with substantially improved performance, as compared to circuits utilizing zener diodes as the active voltage regulating component, at the very low current levels required for such applications as line powered telecommunication devices.
Patent CA-2177886-A1 (CA)
Inventor: ROLL MARK A
IPC: F02M37/22
Filed: 1996-05-31
Abstract: A self-venting valve having its principal parts molded of nylon reinforced with glass fibers is mounted in the bottom of a fuel filter assembly to drain water and other contaminants from the assembly. The self-venting valve includes a plunger portion with a bore therethrough for draining water from the fuel filter assembly and a valve body member which receives the plunger. The valve body member has a vent hole therein which communicates with the interior of the housing to let air into the housing so that as the water drains from the housing a partial vacuum is not created which might interrupt the flow of water. The plunger is biased to the valve closed position by a coil spring, however the valve may be held in the open position by misaligning lugs on the plunger with slots in the valve body member.
Patent CA-2177990-A1 (CA)
Title: Crystalline n-acetyl neuraminic acid derivatives and processes for their preparation
Inventor: WILLIAMSON CHRISTOPHER
IPC: A61K31/35
Filed: 1994-12-15
Abstract: Acetamido-2,3,4,5-tetradeoxy-4-guanidino-D-glycero-D-galacto-non-2-enopyranosonic acid in crystalline form, particularly in the form of a hydrate which exists as crystals having a low aspect ratio, or in the form of a hydrate which exists as crystals having a high aspect ratio.
Patent CA-2182857-A1 (CA)
Title: Gas Sensor
Inventor: MARTELL DENNIS
IPC: G01N33/00
Filed: 1996-08-07
Abstract: A gas sensor assembly having a first housing portion having a receptacle formed therein and a second housing portion in the form of a cover. A gas-sensing agent is disposed in the receptacle, and a working electrode, a counter electrode, and a reference electrode provided on a single electrode support sheet are disposed in fluid contact with the gas-sensing agent. The first housing portion is provided with three conductive housing portions which are in electrical contact with the three electrodes, and the cover maintains pressurized contact between the three conductive housing portions and the three corresponding electrodes. The gas sensor may be provided with two different types of leakage detectors to sense leakage of the gas-sensing agent from the sensor.
Patent CA-2182977-A1 (CA)
Title: Inducing tolerance with tolerogenic fusion proteins
Inventor: SCOTT DAVID W
IPC: C07K16/00
Filed: 1995-02-10
Abstract: The invention provides methods and compositions for inducing  and maintaining  tolerance to epitopes or antigens containing  the epitopes. The compositions include expression cassettes and vectors including DNA sequences coding for a fusion immunoglobulin operably linked to transcriptional and translational control regions functional in a hemopoietic or lymphoid cell.  The  fusion immunoglobulin includes at least one heterologous tolerogenic epitope at the N-terminus variable region of the immunoglobulin. Cells stably transformed with the expression vector are formed and used to produce  fusion immunoglobulin.  The invention also provides methods for  screening  for novel tolerogenic epitopes and for inducing and maintaining tolerance.  The methods of the  invention are useful in the diagnosis and treatment of autoimmune or allergic immune responses.
Patent CA-2184996-A1 (CA)
Title: Method and apparatus for hydro-forming thin-walled workpieces
Inventor: COE THOMAS D
IPC: B21D26/045
Filed: 1995-04-13
Abstract: A method and apparatus for hydro-forming the walls of thin-walled small tubes (1). A mold (10, 11) is provided having an internal surface (13) to support the wall of the tubing and defines cavities (16, 17) that correspond to the desired features. A fluid filled hollow needle (5) having no O-rings or seals thereon is provided that has at least one opening (8a, 8b, 9a, 9b 9c) therein for supplying hydraulic fluid under pressure to the inside surface (2) of the tubing. The needle has an outer diameter that is smaller than the inner diameter of the tubing to form a small clearance (7) therebetween when the needle is in the tubing. The clearance sufficient high enough to deform the wall, while also facilitating insertion and removal of the needle into and from the tubing.
Patent CA-2187238-A1 (CA)
Title: Curling Stabilizer Device
Inventor: MORRIS EARLE
IPC: A63B60/06
Filed: 1996-10-07
Abstract: A curling stabilizer device for attachment to a curling brush handle has a framemember which includes a generally linear handle graspable by the hand of a curling thrower and at least one structural member for spacing the handle from the curling brush at a distance suitable for gripping by a sliding thrower. A releasable gripping device encompasses the brush handle and fixedly attaches the frame member to the brush handle. The frame member is oriented relative to the gripping device so that when the gripping device is in gripping engagement with the brush handle, the linear handle extends in line with the brush handle.
Patent CA-2188676-A1 (CA)
Inventor: BRIN DAVID S
IPC: A61M25/00
Filed: 1995-04-13
Abstract: A therapeutic catheter and method used in percutaneous transluminal coronary angioplasty with the catheter comprising a shaft (5) a soft tip assembly. The assembly consists of a transition tube (15), a soft tip tube (20), and plug tube (25). The assembly is surrounded by a shrink wrap means. An infrared source (45) is applied to the interface of the shaft (5) and transition tube (15) with the heat being propagated to the transition tube (15) and the soft tip tube (20). The transition tube (15) is formed of materials having a tensile strength of at least 150 % of the materials comprising the soft tip tube (20).
Patent CA-2190287-A1 (CA)
Inventor: OLSON CHRISTOPHER PETER
IPC: A61F13/56
Filed: 1996-11-13
Abstract: A disposable absorbent training pant having improved recumbent waste containment features.  The training pant includes an elastic waist barrier selectively joined to a waist peripheral region of the training pant to provide improved fit at the waist, and improved waste containment performance.
Patent CA-2191057-A1 (CA)
Title: Bandwith correlation means for paths in connection-oriented packet switching networks
Inventor: SKALECKI DAREK R
IPC: H04L12/56
Filed: 1996-11-22
Abstract: An alternate path can be established in a connection-oriented packet switching network by correlating the bandwidth reservation of this alternate path with the bandwidth reservation of an active path on trunks through which both paths pass.  The alternate path that is established can have one or more of a number of different attributes that vary from the attributes of the active path.  The alternate path is established in a connection-oriented network with bandwidth correlation in three stages: a keying stage, a correlation stage and, a transfer stage.  An alternate path may be established without a double reservation of bandwidth, thus making efficient use of limited network resources.
Patent CA-2191113-A1 (CA)
Inventor: MCLAUGHLIN ROBERT B
IPC: G06F3/06
Filed: 1995-05-19
Abstract: Procédé et appareil de stockage de données utilisant une mémoire de données dans une disposition cyclique, systématique, utilisant plusieurs portes de données dans une disposition définie par une arithmétique modulaire, et assurant le mouvement relatif entre la mémoire de données et les portes de données. Lorsqu'une ou plusieurs portes de données est/sont sélectionnées, les données peuvent être entrées ou sorties d'une manière prévisible, simple, dénuée de contraintes d'organisation et très efficace, sans qu'il existe de conflit d'utilisation entre les portes distinctes. On décrit également un procédé et un appareil qui assurent la mémorisation de données dans une disposition systématique, cyclique, qui assurent une disposition systématique de plusieurs sorties de données et le déplacment relatif séquentiel entre la mémoire de données et les sorties de données. Les dispositifs de mémoire de cette invention peuvent être conçus de sorte que le dispositif de mémoire fasse circuler des données au travers ou après des portes fixex. Dans une autre forme de réalisation, les données peuvent être stockées dans des endroits fixes et les portes déplacées d'un endroit à l'autre. Les formes de réalisation préférées de cette invention utilisent une technologie de mémoire à semiconducteurs pour mettre en oeuvre les dispositifs de mémoire. Un autre groupe de formes de réalisation utilise un support de mémoire capable de confiner les ondes se propageant pour mettre en oeuvre les dispositifs de mémoire.
Patent CA-2191912-A1 (CA)
Title: Improvements to methods and apparatus for visbreaking of heavy petroleum loads
Inventor: GOUZIEN LUC
IPC: C10G51/02
Filed: 1996-12-03
Abstract: Viscosity reduction process for a hydrocarbon-rich load in the liquid state, by bringing the load to a temperature which initiates cracking to at least part of the hydrocarbons present, then introducing hydrocarbons into the lower part of a maturer (3) in which it moves from bottom to top and is removed from the top to a fractionating unit. Inside the maturer, transverse to the direction of flow, are a number of annular discs (5) spaced apart and each with a central hole (6) which is coaxial with the maturer. The load to be treated is circulated from bottom to top using the central holes of different discs. Device for carrying out the above process, comprising a means of heating the load to a temperature suitable for cracking and a maturer containing at least one feed line to the bottom and at least one extraction line to the top. A number of annular discs are arranged inside the maturer, with their outside edges jointed to the inside face of the maturer and with a central passage coaxial to the maturer.
Patent CA-2193672-A1 (CA)
Title: Peek bearing with trapped ptfe bearing liner
Inventor: WILSON ROBERT T
IPC: F16C33/20
Filed: 1995-06-19
Abstract: A sleeve bearing (10) for use on rotary valve shafts (14) subjected to substantial operating pressures sufficent to extrude PTFE includes a cylindrical nonmetallic bearing jacket (11), preferably composed from PEEK.  The bearing jacket has a cylindrical inner cavity (20) defined between opposite annular cavity end lips (22, 24) within which cavity is disposed a cylindrical PTFE liner (12). The annular cavity end lips on the inner surface of the cylindrical nonmetallic bearing jacket extend inwardly to an end lip surface wherein the diameter of said end lip surface is slightly longer than the diameter of the rotary shaft (14) of the control valve. A suitable adhesive is used to bond the liner (12) to the bearing jacket (11). The cavity end lips maintain the liner in position if the adhesive fails. The end lip construction and the close clearances between the end lips and the rotary shaft enable the PTFE liner to carry greater load than in other PTFE bearing constructions before beginning to extrude PTFE. After the PTFE liner begins to extrude PTFE, the close clearances ensure that any overloaded PTFE is maintained within the cavity (20) of the nonmetallic bearing jacket.
Patent CA-2193998-A1 (CA)
Inventor: JURISICH MILNE
IPC: C23F1/08
Filed: 1995-06-27
Abstract: A method of chemical milling which includes the following steps: (i) suspending an extrusion or casting formed from metal in an etching solution wherein initially the extrusion or casting is fully submerged in the etching solution by virtue of its weight and which thereafter is rendered buoyant by metal being removed from the extrusion or casting by the etching solution wherein the casting or extrusion is supported by a non-buoyant support which maintains the casting or extrusion in a fully submerged condition throughout its immersion in the etching solution; and (ii) withdrawing the extrusion or casting from the etching solution when required. The invention also refers to chemical milling apparatus for use in the abovementioned method as well as the non-buoyant support per se.
Patent CA-2195084-A1 (CA)
Inventor: TANI KATSUYA
IPC: D01D4/02
Filed: 1995-08-10
Abstract: Procédé de préparation de filaments de polybenzazole qui consiste à extruder des filaments d'une filière (1) présentant au moins cent orifices disposés de manière à former un motif annulaire (2) autour du centre de ladite filière (1), le centre et au moins deux sections radiales (3) de la filière (1) n'étant pas dotés d'orifices et présentant une largeur moyenne correspondant à au moins trois fois le diamètre minimum des orifices, et à étirer les filaments à travers une chambre de trempe, un flux de gaz sensiblement radial étant produit dans la filière (1) depuis au moins deux directions différentes.
Patent CA-2195430-A1 (CA)
Title: 6.beta.-substituted penicillanic acids as .beta.-lactamase inhibitors
Inventor: NOGUCHI KAZUHARU
IPC: A61P31/04
Filed: 1995-08-03
Abstract: A 6.beta.-substituted penicillanic acid of formula (XII) or a pharmaceutically acceptable salt or ester thereof, wherein A and B are each hydrogen wherein the carbon atoms to which A and B are attached are linked by a single bond, or A and B together form a bond, wherein the carbon atoms to which A and B are attached are linked by a double bond, R1 is selected from the group consisting of a) hydrogen, b) a pharmaceutically acceptable salt and c) a pharmaceutically acceptable group selected from the group consisting of C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C3-10 cycloalkyl, C3-10 cycloalkenyl, allyl, aryl, aralkyl, aralkenyl, aralkynyl, heterocyclyl, heterocyclylalkyl, heterocyclylalkenyl, heterocyclylalkynyl and alkylheterocyclyl; wherein said group c) is unsubstituted or substituted with a substituent selected from the group consisting of fluoro, chloro, bromo, iodo, azido, nitro, monoalkyl substituted amino, dialkyl substituted amino, aryl substituted amino, alkanoylamino, arylcarbonylamino, cyano, hydroxy, alkoxy, aryloxy, alkanoyloxy, arylcarbonyloxy, mercapto, alkylthio, arylthio, alkanoylthio, arylcarbonylthio, oxyimino, alkoxyimino and carboxy, and n is an integer between 0 and 2.
Patent CA-2195952-A1 (CA)
Title: Slice Pan
Inventor: YOUNG ROBERT YAO-JOU
IPC: A21B3/13
Filed: 1996-05-03
Abstract: The present invention relates to a device for baking slices of cake, bread or other bakery products. The device includes a baking container with dimensions corresponding to a cake or bread slice. The device also includes a paper liner positionable in the baking container for receiving bread or cake batter.
Patent CA-2196677-A1 (CA)
Inventor: KRIESEL MARSHALL S
IPC: A61M5/175
Filed: 1995-07-28
Abstract: This invention is an apparatus for controllably intermixing two or more components in a sterile, closed environment to produce a flowable substance, and then for expelling the flowable substance from the apparatus at a precisely controlled rate. The apparatus is particularly useful for medical applications, that includes a dispenser portion (10) with its own stored energy member (35) for dispensing the flowable mixture, and a coupling mechanism (12) for coupling a dr ug vial (42) to the dispenser portion (10) for the controlled mixing of a medicamen t contained within the drug vial (42) with a diluent stored within the dispenser p ortion (10) of the apparatus via a sterile pathway.
Patent CA-2196771-A1 (CA)
Title: Surface-active formulations
Inventor: MOLDOVANYI LASZLO
IPC: A61K8/44
Filed: 1995-08-14
Abstract: The invention relates to surface-active soap formulations, comprising: (a) 0.01 to 5 % by weight of a microbicidal active substance selected from the group consisting of (a1) phenol derivatives (a2) diphenyl compounds (a3) benzyl alcohols (a4) chlorohexidine (a5) C12-C14alkylbetaines and C8-C18fatty acid amidoalkylbetaines (a6) amphoteric surfactants and (a7) trihalocarbanilides; (b) 0.1 to 25 % by weight of one or more than one hydrotropic agent; (c) 0 to 10 % by weight of one or more than one synthetic surface-active substance or of a soap or of combinations of the cited substances; (d) 0 to 8 % by weight of a salt of a saturated and/or unsaturated C8-C22fatty acid; (e) 0 to 50 % by weight of a dihydric alcohol; (f) 0 to 70 %  by weight of a monohydric alcohol or of a mixture of several monohydric alcohols; and (g) mains water or deionised water to make up 100 %, with the proviso that the formulations contain at least one of components (c) and (d).  The formulations are used for the disinfection and cleansing of the human skin and hands and of hard objects.
Patent CA-2200438-A1 (CA)
Title: Single-use body fluid analysis device
Inventor: CHAFFRINGEON BERNARD
IPC: G01N33/52
Filed: 1995-09-19
Abstract: A single-use device (1) for analysing a body fluid in an elongate body cavity, including a pipe element (2) with a neck (2a) and a bottom wall (2b), and a liquid transfer assembly (3) partially located within the element (2) and extending through a sampling region (3a) outside the neck (2a) to an axial collection point (3b) located within said element (2) in the region of the bottom wall (2b) thereof. The sampling region (3a) of the transfer assembly (3) consists of a peripheral ring held in the neck opening (2) and projecting radially outwards therefrom to define a communicating passage between the cavity and the inside of said element, and a user-visible reaction portion (9, 19) fitted on the element (2) and linked to the axial collection point (3b) for receiving the collected body fluid includes at least one reagent capable of reacting with one component of the fluid to provide a directly user-identifiable tinted reaction product that indicates the presence of said component.
Patent CA-2202099-A1 (CA)
Title: Process for preparing solid titanium catalyst component, olefin polymerization catalyst and process for olefin polymerization
Inventor: KOJOH SHINICHI
IPC: C08F110/06
Filed: 1997-04-08
Abstract: Disclosed is a process for preparing a solid titanium catalyst component, comprising contacting (a) a liquid magnesium compound,  (b) a liquid titanium compound,  (c) an electron donor and (d) a solid divalent metallic halide.          In this process, the solid divalent metallic halide is preferably one having a crystalline structure of cadmium chloride type.  The contact of the component (a) with the component (b) is preferably carried out in the presence of the solid divalent metallic halide (d).  According to this process, there can be obtained a solid titanium catalyst component capable of polymerizing olefins with an extremely high activity and capable of producing polyolefins of high stereoregularity when .alpha.-olefins of 3 or more carbon atoms are polymerized.
Patent CA-2203791-A1 (CA)
Inventor: FERRANTE ANTONIO
IPC: A61K31/20
Filed: 1995-10-25
Abstract: La présente invention concerne des composés d'acides gras polyinsaturés présentant une activité antipaludéenne et/ou neutrophilo-stimulante, ou une activité anti-inflammatoire. Ces acides gras polyinsaturés, qui contiennent une chaîne de 16 à 26 atomes de carbones et 3 à 6 bandes doubles, sont couplés en covalence au groupe carboxylique d'un acide aminé. Dans une réalisation préférée, l'acide gras contient de 18 à 22 atomes de carbones et l'acide aminé est l'acide aminoacétique ou l'acide aspartique. Les composés préférés sont acide .gamma.-linoléïque - acide aminoacétique, acide .alpha.-linoléïque - acide aminoacétique, acide arachidonique - acide aminoacétique, acide docosahexaénoïque - acide aminoacétique, acide eicosapentaénoïque - acide aminoacétique, acide .gamma.-linoléïque - acide aspartique, acide .alpha.-linoléïque - acide aspartique, acide arachidonique - acide aspartique, acide eicosapentaénoïque - acide aspartique et acide docosahexaénoïque - acide aspartique.
Patent CA-2206223-A1 (CA)
Title: Desulfurization and decarbonation process
Inventor: MITSUOKA SHIGEAKI
IPC: B01D53/75
Filed: 1997-05-27
Abstract: This invention provides a process for effecting desulfurization and decarbonation in two stages wherein an amine-containing absorbing solution is regenerated in a thermally advantageous way and the salts (such as calcium carbonate and calcium sulfate) formed during regeneration are effectively utilized.  More specifically, this invention provides a desulfurization and decarbonation process wherein a gas containing sulfur oxides and carbon dioxide is first treated in a desulfurization step so as to cause sulfur oxides to be absorbed in the form of calcium-sulfur oxide compounds; the gas is then treated in a decarbonation step so as to cause carbon dioxide and any sulfur oxides escaping from the desulfurization step to be absorbed in the form of amine salts; the absorbing solution containing the amine salts is treated in a regeneration step to liberate carbon dioxide therefrom; a part of the absorbing solution having liberated carbon dioxide is recycled to the decarbonation step for use as the absorbing solution; the remainder of the absorbing solution having liberated carbon dioxide is fed to a secondary regeneration step where it is treated with a basic calcium substance to regenerate the absorbing solution containing a basic amine compound and to form a solid containing calcium-sulfur oxide compounds and calcium carbonate.
Patent CA-2209740-A1 (CA)
Inventor: BERGH JEAN
IPC: B60C19/08
Filed: 1997-07-07
Abstract: The invention relates to a rubber tire having a tread composed of (i) a tread designed to be road-contacting and composed of a relatively high electrical resistance rubber composition,  (ii) peripheral, lateral extensions of said tread as wings composed of a relatively low electrical resistance rubber composition and (iii) a thin strip, which might sometimes be referred to as a tread strip or gum strip, of relatively low electrical resistance rubber composition positioned on a portion of the face of the tread and extending into the interface between said tread and said tread wings.     In one aspect, the invention relates to such rubber tire where said tread is quantitatively reinforced with silica.
Patent CA-2210855-A1 (CA)
Inventor: JOHANSSON HANS
IPC: C07H21/00
Filed: 1996-01-18
Abstract: Une méthode pour purifier un oligonucléotide synthétique à partir de séquences de défaillance. La méthode consiste à mettre en contact un échantillon contenant l'oligonucléotide voulu dans une forme protégée soluble dans l'eau et un absorbant hydrophile riche en groupes d'échange anionique, dans des conditions permettant le couplage de l'oligonucléotide et de l'absorbant. L'oligonucléotide ainsi absorbé est ensuite déprotégé et séparé des séquences de défaillance. La caractéritique distinctive de cette méthode est l'utilisation d'un absorbant échangeur d'anions qui lie l'oligonucléotide protégé dans des conditions de force inonique élevée ou faible.
Patent CA-2213328-A1 (CA)
Inventor: JOHANSON ROBERT G
IPC: C08F2/48
Filed: 1996-12-18
Abstract: Réseau de film fonctionnel tridimensionnel comprenant une pluralité de couches de films plasma à décharge haute fréquence. Les couches de films plasma comprennent une première couche renfermant une pluralité de premiers groupes fonctionnels, et une seconde couche renfermant une pluralité de seconds groupes fonctionnels. L'utilisation de réseaux de films tridimensionnels pourvus de groupes fonctionnels désirés placés soit sur la périphérie, soit à la fois sur la périphérie et des espaces interstitiels des réseaux accroît la densité fonctionnelle de la surface.