baber/WOPTO huggingface dataset:
Patent CA-2123076-C (CA)
Title: Oil sand extraction process
Inventor: STRAND WILLIAM L
IPC: B03B9/02
Filed: 1994-05-06
Granted: 1998-11-17
Abstract: A method for processing lumps of oil sand containing bitumen to produce a bitumen froth and non segregating tailings of a solid material and a sludge. The method includes depositing the lumps of oil sand into a bath of warm water. The lumps are then conditioned by gently contacting them with the warm water to liberate and separate bitumen from the oil sand while minimizing the dispersal into the bath of fine material contained in the oil sand. Following conditioning, the solid material remaining after the liberation and separation of the bitumen from the oil sand is removed from the bath and collected for further processing. The warm water containing bitumen and dispersed fine material is also removed from the bath andcollected for further processing. Following removal from the bath, the warm water containing bitumen and dispersed fine material is separated into the bitumen froth and a suspension of dispersed fine material. The suspension of dispersed fine material is dewatered to produce the sludge, which is combined with the solid material to produce the tailings.
Patent CA-2131640-C (CA)
Title: Process for sealing catheter tip to insertion needle
Inventor: SLOANE THOMAS EDISON JR
IPC: B29C65/00
Filed: 1994-09-08
Granted: 2006-03-07
Abstract: A process is described for sealing a catheter tip to an insertion needle by use of a laser to ablate the end of a polymer catheter material and in the process of ablating the catheter material also provide a peal between the catheter material and a cannula placed therein. The sharpened cannula is present during the laser ablation process and residual polymer is sealed to the surface, thus preventing bland leakage between the cannula and the catheter tube.
Patent CA-2135961-C (CA)
Title: Method, apparatus and installation for surveying and monitoring a hydrocarbon reservoir penetrated by a well
Inventor: BABOUR KAMAL
IPC: E21B47/10
Filed: 1994-11-16
Granted: 2004-01-20
Abstract: A method of monitoring a fluid reservoir traversed by at least one well comprised the following steps: - at least one electrode is connected to the surface and fixed in permanent manner in the well under conditions isolating the section of the well in which it is located hydraulically from the rest of the well and providing electrical coupling between the electrode and the reservoir; - a current is passed through the reservoir; and - an electrical parameter is measured, whereby a characteristic represen-tative of the reservoir can be deduced.
Patent CA-2138039-C (CA)
Inventor: SCHEIWILLER RENE
IPC: E01C5/00
Filed: 1994-02-22
Granted: 1999-06-01
Abstract: A paving stone (1) which has lateral spacers (12, 13) for forming uniform joints (22) is proposed. The abutting faces (4) of the spacers (12, 13) are shaped for the positive joining-on of a neighboring stone in a paving stone bond (19) in such a way that, with complementary spacers (12, 13), to be assigned to each other in pairs, of opposite paving stone sides (9, 11), they have the same profile and are shaped such that they join against one another in a positive meshing. This provides a stone which, by the shaping of its spacers, anchors the stone in the bond (19) with respect to a side-parallel displacement.
Patent CA-2138379-C (CA)
Title: Spring chamber isolation system for a fluid-operated brake actuator
Inventor: PIERCE WILLIAM C
IPC: B60T17/08
Filed: 1994-03-14
Granted: 2005-11-22
Abstract: A spring chamber isolation system is provided to isolate the spring chamber of a spring brake actuator from its operating environment. The brake actuator (14) comprises a service brake housing (18) divided into first and second service chambers (26. 28) by a diaphragm or piston, and a spring brake housing (20) arranged in tandem with and attached to the service brake housing, also divided into a first and second spring chambers (62, 63) by a diaphragm (53) or piston. A hollow actuator rod (56) is attached to the diaphragm or piston in the spring brake housing and extends from the first spring chamber, through openings in the spring and service brake housings, into the first service brake chamber. The actuator rod is open at both ends, allowing air to flow from the first service chamber into the first spring chamber when the volume of the first spring chamber increases.
Patent CA-2141442-C (CA)
Title: Power package for spa apparatus
Inventor: IDLAND CARSTEN H
IPC: A61H33/02
Filed: 1993-08-10
Granted: 2004-06-22
Abstract: Disclosed herein is a tub apparatus comprising a foamed, resiliently compressible, plastic tub wall having an inner side and an outer side, the tub having an interior to receive liquid, and ports extending through the wall. The tub apparatus further includes a plastic pack having a cavity formed therein for receiving, and protectively enclosing, a pump unit. A water circulation system comprising a tubular duct structure connects the pump unit with the ports for circulating water between the tub interior and the pump unit.
Patent CA-2147901-C (CA)
Inventor: NICE SIDNEY B
IPC: E21B23/03
Filed: 1995-04-26
Granted: 2000-01-18
Abstract: The present invention is an apparatus for guiding a borehole servicing tool string into a sidetrack of a borehole. In one embodiment, a centralizer displaces a pivotally-mounted housing towards the sidetrack. A rounded nose on the bottom of the housing enables free passage of the housing into the sidetrack. In an alternative embodiment, a rounded nose is attached to a hinge at the bottom of the housing, and the tool housing is rotatably mounted to the tool string. The nose is displaced axially about the hinge, and the housing is rotated until the nose is aligned with the sidetrack as indicated  by an orientation measuring ring device disposed within the housing.
Patent CA-2151775-C (CA)
Inventor: HANSON DOUGLAS A
IPC: F21V9/40
Filed: 1995-06-14
Granted: 1998-09-22
Abstract: A nonplanar mechanical dimmer for use in a variable parameter luminaire includes claws, a mounting region and a convex beam blocking region which does not reflect energy back onto a light source during dimming.
Patent CA-2155248-C (CA)
Inventor: SHEPHERD CHARLES G
IPC: E05C19/18
Filed: 1995-07-18
Granted: 2000-01-25
Abstract: A door lock has a body portion securable to a door jamb so as to project therefrom into a room, and a locking portion pivotally mounted on the body portion for angular movement relative thereto about a vertical axis between a locking position preventing opening of a door and an unlocking position permitting opening of the door. One of the portions has a projection engageable in a recess in the other portion to retain the locking portion in the locking position. The locking portion is capable of a limited amount of transverse movement relative to the body portion in a horizontal direction substantially perpendicular to the direction of opening movement of the door to enable the projection to be engaged in and disengaged from the recess.
Patent CA-2157566-C (CA)
Title: Dryer-activated fabric conditioning compositions containing uncomplexed cyclodextrin
Inventor: TRINH TOAN
IPC: C11D3/20
Filed: 1994-03-17
Granted: 1999-06-15
Abstract: An effective amount of uncomplexed cyclodextrin, in the form of particles having particle sizes below about 12 microns, is incorporated into solid dryer-activated fabric conditioning compositions which are used in dryers to treat fabrics. The cyclodextrin is thereby attached to the fabrics and subsequently provides effective control of odors when they come in contact with the treated fabric. The fabric conditioning compositions can be attached to substrates to prepare an article of manufacture or be in the form of detergent compatible particles, for use with conventional laundry detergents.
Patent CA-2164366-C (CA)
Title: Electrical connector
Inventor: DISHART PETER T
IPC: H01R13/04
Filed: 1995-12-04
Granted: 2000-04-04
Abstract: The present invention provides a connector for interconnecting electroconductive elements within a laminate. The connector includes a flat electroconductive member having a first portion with at least one connecting segment which overlays an electroconductive element within the laminate, and a second portion extending from the first portion. One end of the second portion of the connector includes a rigid, integral connection terminal which includes multiple plies of the member. Selected portions of the first portion, and preferably at least the connecting segment, are coated with an adhesive. The adhesive may be electrically conductive or non-electrically conductive. In one particular embodiment of the invention the maximum thickness of the first portion of the connector is about 0.10 mm and the maximum width of the first portion, other than the connection segment, is about 6.4 mm. An electrically insulating cover may be positioned over a section of the second portion and a sealing means positioned along the member between the first and second portions.
Patent CA-2164735-C (CA)
Inventor: GROVES MICHAEL THOMAS
IPC: D05B97/10
Filed: 1995-12-06
Granted: 1998-10-13
Abstract: A rapid button attaching, self locking, plastic lever-latch which is used to attach buttons and/or to sew and mend.
Patent CA-2164920-C (CA)
Title: Solid state rotary apparent beacon
Inventor: VANNROX ROBERT S
IPC: B60Q1/26
Filed: 1995-12-11
Granted: 1999-09-14
Abstract: A completely solid state rotary beacon which produces a rotary beacon lighting effect without the use of mechanical components or rotating parts. The device of the present invention includes a plurality of light sources which are equicircumferentially spaced around the outer perimeter of the rotary beacon.  These light sources are intermittently illuminated by an electronic controller in such a fashion that the illusion of a rotating light beacon is produced without the need for rotating mechanical components.  The lighting sequence, in conjunction with the unique parabolic reflector arrangement of the present invention, create the illusion of a light source being rotated in a 360° path. This effect is achieved by the present invention without the use of rotating mechanical components.
Patent CA-2165558-C (CA)
Title: Machine electrique a courant polyphase a bobinage constitue de pieces structurales conductrices plates
Inventor: HILL WOLFGANG
IPC: H02K3/12
Filed: 1994-06-23
Granted: 2005-01-25
Abstract: Les enroulements à barres et les bobines formées sur gabarit connues sont constitués de barres conductrices pliées à section transversale constante et utilisent donc insuffisamment l'espace disponible dans la tête de bobine. En  outre, compte tenu des rayons de pliage à respecter, notamment dans le cas de machines à hauts pôles, il en résulte de longues sections de liaison par rapport au pas, ce qui augmente le poids du dispositif et les pertes. Les conducteurs façonnés décrits sont fabriqués en une seule pièce sans rayons de pliage et d'après leur forme définitive. Leur section tranversale varie dans la tête de bobine et ils permettent ainsi d'utiliser au maximum l'espace disponible et d'obtenir de courtes sections de liaison. Des conducteurs façonnés successifs sont agencés dans des couches différentes de manière à créer des couches doubles entrelacées à phases multiples. La longueur d'un cordon conducteur formé par la connexion en série des conducteurs façonnés est indépendante de la profondeur de l'encoche et tous les conducteurs de phase d'une couche double entrelacée ont la même construction. Afin d'obtenir des sites agrandis de connexion qui sont tous accessibles en tous temps depuis les faces frontales des têtes de bobine, les conducteurs façonnés sont assemblés en paires avant le montage et ont des extrémités asymétriques. Les moteurs et générateurs équipés des conducteurs façonnés décrits se caractérisent par un rendement et par une puissance volumique élevés.
Patent CA-2166340-C (CA)
Title: Butterfly valve safety lock
Inventor: PRIMEAU MARIO
IPC: F16K35/06
Filed: 1995-12-29
Granted: 2005-08-09
Abstract: A safety lock device for use in releasably locking the head of a butterfly valve. The two part safety lock device comprises first: a cross-sectionally U-shape elongated frame, having an anchoring part at one end and a lateral flange with a number of bores; the anchoring part releasably engages with the valve head for anchoring the U-frame to the valve head; the elongated channel is sized for full engagement by the valve handle; and second: a casing, with an inner passageway, sized for through engagement by the U-frame, and a lateral pocket extension with a number of bores, for engagement by the lateral flange. The casing is characterized by a wedge part, integrally depending therefrom and sized for engagement between the diverging distal end portions of the valve handle and lever. Padlocks releasably interlock the U-frame to the casing by engaging selected pairs of flange bores and pocket bores, thereby concurrently locking the valve lever in its divergent relation to the valve handle.
Patent CA-2168415-C (CA)
Title: Method for encoding and decoding moving picture signals
Inventor: MACHIDA YUTAKA
IPC: H04N19/60
Filed: 1996-01-30
Granted: 2000-07-18
Abstract: A method for encoding and decoding digital moving picture signals which can decode subframes appropriately in relation to time if a part of a bit stream is missing or an error occurs in the bit stream, and can suppress degradation of a reproduced picture if decoding of a subframe including a picture in motion in relation to time becomes unfeasible.          In the method for encoding and decoding digital moving picture signals of this invention, information for one frame is encoded correspondingly to a spatial hierarchy of a frame, subframes and blocks.  A subframe time position number and a subframe space number are attached to an identifier of each of the subframe, thereby resuming appropriate decoding of the subframes immediately after a trouble if an error occurs.  The subframe identifiers are placed at  a certain interval in the bit stream so as to give a smaller size to a subframe including a block which is in motion and difficult to be encoded, thereby suppressing degradation of a reproduced picture if decoding of the subframe becomes unfeasible.
Patent CA-2170365-C (CA)
Inventor: KIANY ESFANDIAR
IPC: C23G5/024
Filed: 1995-07-06
Granted: 2001-05-08
Abstract: A method of cleaning and recycling a cleaning solvent including the steps of treating mass of cleaning solvent having a flashpoint of greater than 100 °F and having not more than 20 % aromatic solvents and the remainder aliphatic and other solvents with from about 0.5 up to about 5 parts per hundred of solvent of a treating composition selected from C5-C10 alcohols, C5-C10 diols, C5-C10 glycols, and C5-C10 glycol ethers, and mixtures of the alcohols, diols, glycols, and glycol ethers, clarifying the solvent by adding thereto from about 0.01 up to about 5 pph of a clarifying agent and up to 5 pph of water to provide a clarified volume of solvent, recycling the solvent by distilling, and thereafter repeating the recycling, clarifying and distilling steps.
Patent CA-2174932-C (CA)
Title: Machine a plateau oscillant
Inventor: PARKER ALFRED
IPC: F01C9/00
Filed: 1994-10-28
Granted: 2003-12-16
Abstract: Machine à plateau oscillant comportant un carter (1) pourvu d'éléments terminaux (2, 3) et d'un arbre rotatif (4). L'arbre (4) entraîne un plateau oscillant (5) par l'intermédiaire d'un élément intermédiaire (6) comportant un manchon décentré (7) claveté à l'arbre (4) et un organe sphérique non rotatif (8). L'élément intermédiaire (6) est également porté par une paire de cônes terminaux (15). Un déflecteur (9) fixé au carter (1) croise le plateau oscillant (5) et un élément pivotant et oscillant à fentes est prévu au niveau de la zone de croisement. L'agencement de la machine à plateau oscillant est tel que l'un au moins des cônes terminaux (15) est monté coulissant dans le carter (1) sur un élément de guidage (18). Par conséquent, pendant le fonctionnement de ladite machine à plateau oscillant, au moins le cône coulissant (15) peut se déplacer axialement sur une distance limitée, tandis que toute rotation du cône (15) est empêchée par l'élément de guidage (18).
Patent CA-2175031-C (CA)
Title: Process for the carbonylation of alkyl alcohols and/or reactive derivatives thereof
Inventor: BAKER MICHAEL JAMES
IPC: B01J27/10
Filed: 1996-04-25
Granted: 2007-12-04
Abstract: In a process for the liquid phase carbonylation of an alkyl alcohol such as methanol, and/or a reactive derivative thereof to produce the corresponding carboxylic acid and/or ester, in the presence of an iridium catalyst, an alkyl halide and water, the reaction is promoted by the presence of at least one promoter selected from cadmium, mercury, zinc, gallium, indium and tungsten, optionally with a co--promoter selected from ruthenium, osmium and rhenium.
Patent CA-2176321-C (CA)
Title: Audible product merchandising tag
Inventor: REUBEN RONNIE
IPC: G09F25/00
Filed: 1996-05-10
Granted: 2007-05-01
Abstract: An audible product information tag comprised of a pair of panels folded one over the other along a fold line.      An electronic program circuit is located in a housing secured to an inner face of one of the panels. A switch actuator is connected at one end to an inner face of the other of the panels and has a switch contact operating connection at an opposed end to enable and disable the electronic programmed circuit. A speaker is connected to the programmed circuit for transmitting an audible message when a switch contact is enabled by the switch actuator upon displacement of the other of the panels a predetermined distance away from the other panel towards an open position.      A detachable connection is provided to maintain the panels folded one over the other to a closed position with the switch contact disabled.
Patent CA-2176677-C (CA)
Title: Power supply circuit with power saving capability
Inventor: WATANABE MITSUHIRO
IPC: G06F1/32
Filed: 1996-05-15
Granted: 1999-06-29
Abstract: A power supply circuit efficiently saves electric energy consumed by a central processing unit and a peripheral assembly through coordination between power supply modes of the central processing unit and the peripheral assembly. The central processing unit has a register for establishing a status of an internal power supply of the central processing unit, a first mechanism for changing the internal power supply into the status established by the register, and a second mechanism for outputting a status signal indicative of the status. The peripheral assembly having a peripheral circuit, a peripheral device, and a power supply control block for changing power supply statuses and clock statuses of the peripheral circuit and the peripheral device based on the status signal outputted from the second mechanism.
Patent CA-2179166-C (CA)
Title: Downhole tool
Inventor: JONES DALE A
IPC: E21B47/01
Filed: 1994-11-23
Granted: 2006-10-03
Abstract: A stabilizer-type downhole tool comprises an elongate main body (10). At le ast one elongate blade (14) lying generally longitudinal ly along the exterior of the main body (10) projects radically outwardly theref rom. Attachment means cooperative between the main body (10) and the blade (14) removeably retain the blade (14) on the main body (10) so as to permit limited relative longitudinal movement bet ween one end of the blade (14) and the adjacent portion of the main body (10) wit hout necessitating corresponding movement at the other e nd of the blade (14). The main body (10) may comprise an instrument-receiving cav ity (16a) beneath the blade (141 and an elongate instrum ent in a sealed housing may be disposed in the cavity (16a), with its ends retai ned with respect to the adjacent portion of the main bod y (10) without necessitating corresponding movement at the other end. At leas t one of the housing ends is so retained as to permit re lative longitudinal movement with respect to the main body (10).
Patent CA-2180303-C (CA)
Inventor: MANDULEY FLAVIO M
IPC: G07B17/00
Filed: 1996-07-02
Granted: 2002-09-17
Abstract: A value metering system embodying the present invention includes means for storing a unique value metering system identification to enable identification of the value metering system from a plurality of other value metering systems. Communications means are provided for receiving broadcast communications messages and processing the broadcast communications messages to determine if a received broadcast communications message is intended for the value metering system. Controller means control the operation of the value metering system. The controller means is coupled to the communications means and is responsive to specific received broadcast communications messages determined by the communications means to be intended for said value metering system.
Patent CA-2183784-C (CA)
Inventor: JOO SANG HOON
IPC: C21C5/46
Filed: 1995-12-27
Granted: 2000-05-23
Abstract: An apparatus for and a method of melting fine particles containing carbon, capable of uniformly burning and melting the fine particles throughout the entire zone of the combustion flame. The apparatus includes a triple tube structure including an inner oxygen feeding section having an oxygen inlet tube provided with an oxygen feeding passage, a particle feeding section arranged surrounding the inner oxygen feeding section, comprising a particle inlet tube, a feeding tube and a feeding passage, and an outer oxygen feeding section arranged surrounding the particle feeding section, comprising an outer oxygen inlet tube, a feeding tube and a feeding passage. The front ends of the inner oxygen feeding tube, particle feeding tube and outer oxygen feeding tube constitute a nozzle which serves to inject the fine particles fed through the particle feeding tube together with air and/or oxygen flows respectively fed through the inner and outer oxygen feeding tubes to be burned and melted.
Patent CA-2191511-C (CA)
Title: Cutting assembly for removing windshield
Inventor: OGSTON ALFRED JOHN
IPC: B26B7/00
Filed: 1996-11-28
Granted: 2001-01-02
Abstract: The cutting assembly functions to sever the urethane bed bonding a windshield to a vehicle. The assembly comprises a reciprocating air gun connected with a cutting blade by a shaft. The blade has a straight front cutting edge about 4 inches in width. The blade is reciprocated in and out of the bed to sever it.
Patent CA-2214319-C (CA)
Title: Novel taxoids, preparation thereof and pharmaceutical compositions containing same
Inventor: BOURZAT JEAN-DOMINIQUE
IPC: A61K31/337
Filed: 1996-03-25
Granted: 2004-02-17
Abstract: Novel taxoids of general formula (I), the preparation thereof, and pharmaceutical compositions containing same, are disclosed. In general formula (I), Z is a hydrogen atom or a radical of general formula (II), wherein R1 is an optionally substitued benzoyl radical or a thenoyl or furoyl radical, a radical R2-O-CO-, where R2 is an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, optionally substitued phenyl or heterocyclyl radical, R3 is an aromatic heterocyclic alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or naphtyl radical, R4 is an optionally substitued alkoxy, alkenyloxy or alkynyloxy radical or a cycloalkyloxy or cycloalkenyloxy radical, and R5 is an optionally substitued alkoxy, alkenyloxy or alkynyloxy radical or a cycloalkyloxy or cycloalkenyloxy radical. The novel products of general formula (I), wherein Z is a radical of general formula (II), have remarkable antitumoral and antilukaemic properties.
Patent CA-2215751-C (CA)
Title: Hair treatment composition
Inventor: BIRTWISTLE DAVID HOWARD
IPC: A61K8/89
Filed: 1996-04-01
Granted: 2001-10-09
Abstract: Hair treatment compositions which can generate style benefits while giving good conditioning comprise a non-rigid, emulsion polymerised cross-linked silicone conditioning polymer having from about 0.05 % to about 10 % branche d monomer units.