baber/WOPTO huggingface dataset:
Patent CA-2071779-C (CA)
Title: High melt strength, ethylene polymer, process for making it, and use thereof
Inventor: DENICOLA ANTHONY J JR
IPC: C08F110/00
Filed: 1992-06-22
Granted: 1997-01-21
Abstract: Disclosed is a normally solid, high molecular weight, gel-free, irradiated ethylene polymer having a density of from 0.89 to 0.97 g/cc characterized by high melt strength due to strain hardening which is believed to be caused by free-end long chain branches of the molecular chains forming the polymer.  Also disclosed is a process for making the polymer by high energy radiation of a normally solid, high molecular weight, ethylene polymer in a reduced active oxygen environment, maintaining the irradiated material in such environment for a specific period of time, and then deactivating free radicals in the material.
Patent CA-2075338-C (CA)
Inventor: MANTOVANI MARCO
IPC: B29C48/345
Filed: 1992-08-05
Granted: 2003-07-29
Abstract: The multiple-duct tube for centrifugal separators for blood in particular, suitable for connecting a rotating connector to a stationary connector comprises, in a monolithic structure, a plurality of ducts which have parallel axes. The outer surface of the tube is defined by blended portions of walls of the peripheral ducts, so as to assume a lobate shape in a transverse cross-section.
Patent CA-2077812-C (CA)
Title: Web dressing and method for its production
Inventor: CHEONG CATHERINE L
IPC: A61L26/00
Filed: 1992-09-09
Granted: 2004-11-09
Abstract: The present invention provides a dressing consisting of a non-reinforced, apertured gel web, wherein the gel is substantially anhydrous and comprises a water-soluble, polysaccharide- or cellulosic- polymer and a humectant, for use in treating burns. The present invention also provides a method for making the dressing.
Patent CA-2081503-C (CA)
Title: Metallized film structure and method
Inventor: MIGLIORINI ROBERT ANDREW
IPC: C08J7/048
Filed: 1992-10-27
Granted: 2004-07-06
Abstract: A metallized film structure comprising an oriented polymeric substrate layer having thereon a coating layer and a metallized layer on the coating layer.
Patent CA-2081601-C (CA)
Inventor: PERKINS BRADLEY A
IPC: G01R31/30
Filed: 1992-10-28
Granted: 2001-05-08
Abstract: A battery and circuitry for monitoring state of charge of the battery are housed in a single housing. A display may be provided for displaying an indication of the state of charge, and a communication circuit may be provided for communicating electrical signals representing the state of charge to the exterior of the housing. Preferably, the battery module additionally includes a switch device for connecting the battery to terminals external to the housing arid control circuitry responsive to the monitoring circuitry for causing the battery to be connected to and disconnected from the terminals. The control circuitry operates in accordance with thresholds to prevent deep discharge and overcharge.
Patent CA-2082590-C (CA)
Title: Epoxy floor roller tool and method of making same
Inventor: JACOBS WILLIAM A
IPC: A46B13/00
Filed: 1992-11-10
Granted: 2004-05-25
Abstract: An epoxy floor roller tool formed by spirally winding a continuous strip of carding cloth having wires protruding outwardly therefrom around a roller core tube.      The carding cloth wires are made of a cadmium plated steel which allows the wires to remain rigid even though quite thin and densely packed, whereby when the roller tool is rolled against a wet epoxy material spread over a floor surface, the wires will break even very small, closely spaced air bubbles in the epoxy, allowing the air to be released so that the voids caused by the air bubbles will flow closed without cratering before the epoxy hardens.
Patent CA-2086278-C (CA)
Title: Micro-bar code reader system
Inventor: KOMAI TOSHIYUKI
IPC: G06K7/10
Filed: 1992-12-24
Granted: 2003-05-06
Abstract: A bar code reader system is adapted to read a micro-bar code. The bar code reader system comprises a light emitting body for irradiating a light beam onto a bar code surface, on which the micro-bar code to be read is provided, a focusing lens for focusing a reflected light from the bar code surface, an image pick-up means for receiving the focused reflected light and forming an image of the micro-bar code to be read, and a cylindrical lens body arranged to pass both of the light beam from the light emitting body and the reflected light beam reflected from the bar code surface therethrough, the cylindrical lens body being arranged orienting the axis thereof substantially consistent with a bar code reading direction.
Patent CA-2088707-C (CA)
Title: Brazing agent and a brazing sheet both comprising an aluminum alloy containing a flux
Inventor: IWAI ICHIRO
IPC: B23K35/14
Filed: 1993-02-03
Granted: 2004-05-25
Abstract: A brazing agent comprises an aluminum alloy which contains a flux, the agent having an apparent density of 90 % or more of a theoretical density, the aluminum alloy comprises in addition to the flux: aluminum element; and silicon element at about 3 - 15 % by weight of all the elements other than the flux, so that the ratio in weight of all the elements to the flux is from 99.9 : 0.1 to 70 : 30. The aluminum alloy may further contain one or more elements selected from a group consisting of zinc, tin and indium, at about 0.1 - 5 %, 0.01 - 0.5 % and 0.01 - 0.5 % by weight of all the elements, respectively. A brazing sheet may be of such a structure that a core sheet made of aluminum or its alloy has at least one surface clad with a skin layer which has a thickness of 10 µ m or more for each surface.
Patent CA-2089179-C (CA)
Inventor: GURSKY LEONARD JACK
IPC: C08L25/00
Filed: 1991-08-09
Granted: 1998-02-17
Abstract: Composition pour flanc de pneu, possédant des propriétés améliorées. La composition renferme un copolymère halogéné d'une isomonooléfine C4 à C7 et d'un para-alkylstyrène, ainsi qu'un caoutchouc insaturé, comme le caoutchouc naturel. Des pneus comportant ces flancs sont également présentés.
Patent CA-2093551-C (CA)
Title: Method and apparatus for measuring the dimensions of an object
Inventor: KASER BEDA
IPC: G02B26/12
Filed: 1993-04-06
Granted: 2004-08-24
Abstract: Laser beams from separate sources are deflected by a rotating mirror and travel over further mirrors and objective lenses into a measuring field for measuring the dimensions of an object 3 in the x and y directions. The result is a simple, compact configuration. The separate optical systems for both measuring directions can be set in an optimum manner independently of one another, permitting great precision.      Thanks to an offset of the optical axis of the incident laser beams relative to the rotation axis of the mirror the measurements in the two directions are made staggered in time so that the measurement signals can be processed in a common measuring channel.
Patent CA-2099794-C (CA)
Title: Scraper for a pipe pig
Inventor: SIVACOE ORLANDE
IPC: B08B9/04
Filed: 1993-07-05
Granted: 2000-01-11
Abstract: A scraper for a pipeline pig. The scraper is made from a single metal blank, having a plurality of fins disposed radially about a common central axial member. Each fin includes a scraping end and a connector end. The connector end is connected to the common central axial member, and the scraping end extends circumferentially outward from the connector end. Each scraping end preferably forms a quarter circle, and the fins are connected in plural pairs to the common central axial member with adjacent pairs rotationally offset in relation to each other about the common central axial member, preferably about 45° apart. In use, the scraper is embedded in an elastic pig body.
Patent CA-2108771-C (CA)
Inventor: KOU YUKARI
IPC: H04B7/15
Filed: 1993-10-19
Granted: 1998-10-13
Abstract: In a satellite communication network, a reference station (RS) simultaneously announces a reference time of a reference clock (23) once in a predetermined duration of time to all terrestrial stations of the network.  In each terrestrial station (TS(n)) which comprises a local clock (13), a packet forming arrangement (11, 15), a data extracting arrangement (11, 19) for extracting a local time datum from a packet received from a different terrestrial station, and a calculation unit (21) for calculating a propagation delay time between the different terrestrial station and the terrestrial station under consideration by subtracting from the local time datum a current time indicated by the local clock when the local time datum is extracted, a time setting arrangement (25, 27) sets the current time at a sum of the local time datum and a constant preassigned to the terrestrial station in question.  The constant is preliminarily decided by calculating a distance on the earth between the terrestrial station and the reference station based on their longitudes and latitudes, calculating a physical length of a communication link by using the distance, and calculating a time necessary for electromagnetic waves to travel the physical length.  It is possible to substitute one of the terrestrial stations as a center station for the reference station.  The physical length is calculated by furthermore using either one-way propagation delays from the terrestrial station under consideration and from the reference or the center station to a satellite of the network or the longitude of the satellite.
Patent CA-2110057-C (CA)
Inventor: SACKHEIM ROBERT L
IPC: F02K9/42
Filed: 1992-08-07
Granted: 1998-07-07
Abstract: Dans une application préférée de la présente invention, un propulseur (70) à diergols refroidis sert à contrôler la position en orbite et l'orientation d'un engin spatial. Le propulseur (70) à diergols refroidis utilise un propergol et un oxydant liquide. Le propergol est décomposé dans une première chambre (72) dans un lit catalytique constitué d'une matière (74) favorisant la décomposition et produit au moins un gaz de réaction qui s'écoule dans la deuxième chambre (90) de réaction. Cette dernière est réchauffée par le gaz de réaction, mais refroidie par l'oxydant liquide passant dans les conduits de refroidissement (92, 94, 98, 102) qui transportent l'oxydant dans la deuxième chambre (90) de réaction aux fins d'échange thermique. Pendant l'échange thermique, la chaleur est transférée de la deuxième chambre (90) de réaction à l'oxydant, et l'oxydant se transforme en gaz. La deuxième chambre (90) de réaction est alimentée en oxydant gazeux aux fins de réaction secondaire avec le gaz de réaction.
Patent CA-2124394-C (CA)
Title: Method of making an abrasive compact
Inventor: TANK KLAUS
IPC: B22F1/06
Filed: 1994-05-26
Granted: 2004-04-06
Abstract: The invention provides a method of making an abrasive compact using conventional compact synthesis conditions. The method is characterised by the use of an ultra-hard abrasive particle mass comprising at least 25 percent by mass of ultra-hard abrasive particles having an average particle size in the range 10 to 100 microns, and consisting of particles having at least three different average particle sizes, and at least 4 percent by mass of ultra-hard abrasive particles having an average particle size of less than 10 microns. The abrasive compact is preferably a diamond compact.
Patent CA-2125889-C (CA)
Title: Plate type heat exchanger
Inventor: MEEKINS KRIS J
IPC: F28D9/00
Filed: 1992-10-29
Granted: 1996-12-10
Abstract: A heat exchanger of the type having a stack of heat exchange units (14) each formed from first and second thin plates (30, 32) having grooves and ribs, wherein the grooves and ribs on facing surfaces of the first and second plates of a unit cross one an-other and co-operate to define a first flow path, and grooves and ribs on facing surfaces of first and second plates (30, 32) of ad-jacent units cross one another and co-operate to define a second flow path, wherein the ribs and grooves have transverse projec-tions formed therein to provide the second flow path with a cross-sectional area exceeding the cross-sectional area of the first flow path.
Patent CA-2126367-C (CA)
Inventor: HORTON PAUL L
IPC: B65G15/58
Filed: 1994-06-21
Granted: 2007-01-09
Abstract: The present invention provides an apparatus and method associated with conveyors for moving items where the conveyor has an endless loop belt, a wear strip for supporting the belt and means for moving the belt. The endless loop belt comprises a succession of individual components, each component having a first end, a second end, an inner surface and an outer surface such that the first end and the second end comprise a pivot. The apparatus and method of the present invention provide that the second end of each of the components is attached to the first end of at least one of the next components of the succession of components, a longitudinal band of components is formed having a low surface friction characteristic on the inner surface of the belt, the low surface-friction, longitudinal band is engaged with the wear strip for reducing the energy consumption and drive friction and increasing the pulling strength associated with the conveyor, and an effective arrangement of components is determined for optimizing the friction characteristics of the outer surface of the belt.
Patent CA-2127571-C (CA)
Title: Automatic pet feeder
Inventor: CHRISCO LARRY L
IPC: A01K7/00
Filed: 1994-07-07
Granted: 2006-08-29
Abstract: A pet feeding and watering assembly (20) includes a pet feeder (22) and a pet waterer (24), where the feeder (22) may be detachably retained within a cavity (40) of the waterer (22). The feeder (22) has a molded body (26) having marginal wall structure (42-52) defining an interior chamber (54) communicating a feed inlet opening (98) and a feed outlet opening (72) across a shiftable divider barrier (136). Feed inlet lid (20) and feed outlet cover (30) are interchangeable. The pet waterer (24) includes reservoir-defining wall structure (36), a food or feeder-receiving cavity (40), and partition supports (166-i72) for resisting the compressive loading of lower cavity wall (196).
Patent CA-2136356-C (CA)
Inventor: KOHN ELISE C
IPC: A61K31/4164
Filed: 1993-06-08
Granted: 2006-06-06
Abstract: A discovery underlying this invention is the concordance between particular cellular signaling mechanisms and cancer cell growth and metastasis. It has now been discovered that the compounds   inhibit the signal transduction required for the maintenance and driving of the malignant process. These compounds are also effective for the in vivo treatment of solid tumors and related disease states. This invention provides uses for the compounds to inhibit invasion and metastasis of solid tumors, and for the treatment of diseases involving aberrant signal transduction pathways.
Patent CA-2136408-C (CA)
Title: Phased array spread spectrum system and method
Inventor: SCHILLING DONALD L
IPC: H04B1/707
Filed: 1994-11-22
Granted: 2000-01-11
Abstract: A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath. A received spread-spectrum signal is delayed with respect to a phased version of the spread-spectrum signal. The delayed spread-spectrum signal is combined with the phased version of the spread-spectrum signal. A magnitude value of the combined signal is compared with a previous-magnitude value. The delay is adjusted in response to the comparison.
Patent CA-2139183-C (CA)
Inventor: WHISENHUNT H DEWAIN
IPC: E21B19/20
Filed: 1994-12-28
Granted: 1999-11-16
Abstract: A blasthole drill comprising a frame supported for movement over the ground, a mast supported by the frame for movement relative thereto between a substantially vertical position and a non-vertical position, the mast defining a drill hole axis, a drill-through pipe rack mounted on the mast, the pipe rack including a rack member, a gate mounted on the rack member, the gate having open and closed modes and being adapted to support the lower end of a drill pipe when the gate is in the closed mode, the gate permitting the drill pipe to move downwardly relative to the gate when the gate switches to the open mode, and the gate allowing movement of the rack member away from a drill pipe previously supported by the gate when the gate is in the open mode, a mechanism for moving the rack member horizontally relative to the mast and between an extended position wherein a drill pipe supported by the gate is on the drill hole axis and a retracted position wherein the gate is spaced from a drill pipe on the drill hole axis, and a rotary head moveable relative to the mast along the drill hole axis, the rotary head being selectively engageable with the upper end of a drill pipe supported by the pipe rack when the rack member is in the extended position.
Patent CA-2139275-C (CA)
Inventor: JANG SUN-SING
IPC: F24C15/20
Filed: 1994-12-29
Granted: 1997-07-22
Abstract: A smoke exhauster comprises a filtration member of a rectangular framelike construction. The filtration member is disposed in the smoke exhauster such that the periphery of the filtration member urges the inner wall of a stopping portion of the base board of the smoke exhauster, and that the top and the bottom of the filtration member are attached respectively to the bottom of the bottom board of the smoke exhauster and the top of a main plate portion of the base board of the smoke exhauster. The filtration member serves to purify the fume so as to reduce the discharge of the air pollutant into the atmosphere.
Patent CA-2141736-C (CA)
Title: Method of producing hard polyurethane foams
Inventor: LAMBERTS WILHELM
IPC: B65D90/00
Filed: 1993-07-22
Granted: 2004-05-18
Abstract: Rigid polyurethane foams are produced by the reaction of 1) polyisocyanates with 2) compounds of a molecular weight of from 92 to 10,000 having at least two hydrogen atoms active towards isocyanates in the presence of 3) hydrofluoroalkanes as foaming agents and of 4) at least one of the following compounds R1-O-CO-O-R2; R1-O-CO-O-CO-O-R2; (see formula one) wherein R1 and R2 signify C1-C12-alkyl or together C2-C6-alkylene and n signifies an integer from 0 to 6, (see formula two) wherein R1 to R3 signify C1-C12-alkyl which is optionally substituted by halogens, C5-C10-cycloalkyl or optionally substituted aryl,   wherein R1 and R2 signify C1-C16-alkyl or C5-C10-cycloalkyl,   wherein R signifies C1-C20-alkyl or C5-C10-cycloalkyl, as solubilisers as well as optionally in the presence of 5) other known per se auxiliary substances and additives.
Patent CA-2150797-C (CA)
Title: Spinal treatment and long bone fixation apparatus and method
Inventor: ROGOZINSKI CHAIM
IPC: C07C67/475
Filed: 1994-10-07
Granted: 2011-07-05
Abstract: Apparatus and method for treating spinal conditions by moving or spatially fixing at least one vertebra relative to another vertebra. The device includes link members (10, 20, 30) the ends (12, 14, 22, 24, 32, 34) of which are secured to adjacent vertebra and which are offset from central portions (16, 26, 36) of the link members (10, 20, 30). The link members are in the form of a C-shaped or V-shaped rod or plate to form the offset. The offset provides increased bone volume that can be used for grafts or fusion. Attachment structure in the form of bone screws (50), bolts or hook members (80) are provided to secure the link members (10, 20, 30) to respective vertebrae or other bones. A plurality of link members can be used to connect multiple points on a plurality of vertebrae or other bones even though those points are nonlinear (Fig. 5). In another aspect of the invention, a multidirectional attachment member (750) may be used with the link members to form a spinal implant or bone fixation system.
Patent CA-2156050-C (CA)
Inventor: ANDERSEN PER JUST
IPC: B29C51/08
Filed: 1994-02-17
Granted: 2004-05-11
Abstract: Compositions, methods and system for manufacturing articles, including containers and packaging materials, from inorganically filled materials are disclosed. Suitable compositions are prepared by mixing together an organic birder, water, and appropriate additives (such as aggregates, fibers, and rheology-modifying agents) which impart predetermined properties so that an article formed therefrom has the desired performance criteria.      The desired article can be molded from a sheet. The sheet forming processes require the mixture to first be fashioned into a sheet, such as by the use of an extruder or rollers, after which the sheet is formed into the desired article . Once the article is formed, it is hardened. Printed indica and a coating can then be applied.
Patent CA-2156457-C (CA)
Title: Fastener with polymer-coated shank
Inventor: KISH FREDERICK A
IPC: F16B15/06
Filed: 1995-08-18
Granted: 1999-07-27
Abstract: A fastener is formed from carbon steel wire so as to have an elongate shank defining an axis, an enlarged head formed at one end of the shank, and a generally pointed tip formed at the other end of the shank.  The shank has a ringed portion formed with annular grooves defining annular rings and with helical grooves intersecting the annular grooves and defining helical ribs.  Each helical groove is symmetrical or asymmetrical with respect to a plane comprising the axis defined by the shank.  The elongate shank is smooth and generally cylindrical between the ringed portion and the generally pointed tip.  The fastener is heat-treated, zinc-plated, and chromate-coated. Substantially all of the shank or of the fastener, as a whole, is further coated with a polymeric material to resist corrosion, to improve ease of driving the fastener, and to increase holding power of the fastener when driven through a wood, plywood, or plasterboard workpiece and then through a steel framing member. Substantially all of the shank or of the fastener, as a whole, may be thus coated with the polymeric material. The polymeric material softens and flows upon penetration and rehardens.
Patent CA-2159451-C (CA)
Inventor: CASARA PATRICK
IPC: C07F9/6561
Filed: 1994-02-25
Granted: 1999-04-13
Abstract: Nouveaux dérivés phosphonatés de certaines purines et pyrimidines utiles comme agents antiviraux, méthodes utiles pour leur préparation, et leur utilisation comme agents antiviraux contre les virus ADN, les rétrovirus et les virus impliqués dans la formation de tumeurs.
Patent CA-2168059-C (CA)
Title: Air-fuel ratio control system
Inventor: ISHIDA AKIRA
IPC: F02D41/14
Filed: 1996-01-25
Granted: 1999-08-17
Abstract: An air-fuel ratio control system which calculates a basic injection amount of fuel by state detecting sensors each of which detects an operating state of an internal combustion engine, air-amount detecting sensors each of which detects an intake air amount, an air-fuel ratio sensor, and a predetermined data group. Further, the air-fuel ratio control system stores past amount data of injected fuel and air-fuel ratio data at each control cycle. A neuro-computation unit reads values of the data detected by the sensors and the stored data to obtain an air-fuel ratio estimate to calculate a correction injection amount of fuel by a neural network of a forward neuro-computing unit, which has learned beforehand about relations of the injected fuel amount, the detected air-fuel ratio, parameters, and dead time.