baber/WOPTO huggingface dataset:
Patent CA-2214632-A1 (CA)
Title: Flexible lifting apparatus
Inventor: ROSCHAK EDMUND J
IPC: A61B17/00
Filed: 1996-03-01
Abstract: A lifting apparatus for deployment through a laparoscopic incision in a body wall to apply an external lifting force over a large area of the body wall. The apparatus provides a broad lifting surface that is capable of applying a lifting force of at least 40 pounds (180 Newtons) to an area of a body wall sufficiently extensive to reduce the lifting pressure exerted on the body wall to well below that which could cause pressure trauma to the body wall, yet delivers this broad lifting surface through the body wall via an incision about 14 mm long. The apparatus comprises a body wall engaging element capable of passing in a packaged state through the laparoscopic incision, and being inflatable to an inflated state. In the inflated state, the body wall engaging element is substantially toroidal, provides a broad lifting face, and bounds a central hole. The body wall engaging element includes an equatorial portion facing into the central hole. The apparatus also includes a flexible lifting element that has a flexible portion capable of passing through the laparoscopic incision. The flexible portion is attached to the equatorial portion of the body wall engaging element and extends from the equatorial portion towards the broad lifting face. The flexible lifting element also includes an adapter, connected to part of the flexible portion remote from the equatorial portion of the body wall engaging element, that receives the external lifting force and transfers the external lifting force to the flexible portion.
Patent CA-2214837-A1 (CA)
Title: Method of purification of recombinant viral vectors containing a therapeutic gene
Inventor: SHEPARD H MICHAEL
IPC: C12N7/02
Filed: 1996-03-06
Abstract: The invention provides a method for purifying viral vectors containing therapeutic genes for use in gene therapy. The invention comprises a method of purification from a cell lysate of a recombinant viral vector containing a therapeutic gene, which comprises: a) treating said lysate with an enzymatic agent that selectively degrades both unencapsulated DNA and RNA; b) chromatographing the treated lysate from step a) on a first resin; and c) chromatographing the eluant from step b) on a second resin; wherein one resin is an anion exchange resin and the other is an immobilized metal ion chromatography (IMAC) resin.
Patent CA-2216800-A1 (CA)
Inventor: MATSUMOTO YOSHITAKA
IPC: G01N21/88
Filed: 1996-03-26
Abstract: A  device   for  wholly   and   continuously observing  inner wall  surfaces,  which  are  dark  and difficult to observe,  of a conduit,  such as a water pipe,  or  a  sewage  pipe  which  runs  vertically, horizontally,  obliquely  and  meanderingly  under  the ground,  with  an  accurate  position measurement.    A scanner is put into a conduit, and a travelling section of a moving device is driven under the instruction from a control device to move the scanner along the axis of the conduit.  A distance sensor measures the distance of movement of the scanner based on the length of a cable paid out, and a posture sensor having a three-axis  gyroscope measures  the posture  of  the  scanner using the roll angle, pitch angle and yaw angle.  These distance data and posture data which vary with movement of the  scanner  are  sequentially transmitted to  the control device on the ground through the cable,  and combined with  the  picture  data  outputted  from  the scanner to  generate  continuous  developed picture  of inner wall surface of the conduit.
Patent CA-2217223-A1 (CA)
Inventor: STEVENS KENNETH A
IPC: A47B96/14
Filed: 1996-04-10
Abstract: A modular shelving system (1) includes active and fixed storage levels. The storage levels are removably supported from support posts and are disposed at intermediate positions between a top shelf assembly (2) and a base shelf assembly (4). Each active storage level is secured to a pair of slide assemblies allowing such to be displaced from the shelving system to provide convenient access to items stored thereon. The support posts (6, 8, 10, 12) may be in the form of cylinders having an array of vertical slots for receiving mounting hardware for supporting shelves. Alternatively, support posts having longitudinal slots formed therein in combination with slotted-post inserts may be used to support the shelves. An anti-tip leg assembly (7) can optionally be employed to provide increased stability.
Patent CA-2218258-A1 (CA)
Title: Edge protector, method and fitted article
Inventor: MORLEY TIMOTHY CORBEN
IPC: B65D59/00
Filed: 1997-02-14
Abstract: The invention relates to an edge protector, method and fitted article, and in particular to an edge protector for use on generally flat faced, panel-like products such as doors, worktops, table-tops and the like. There is disclosed an edge protector (10) having a base (14), two opposed sides (16), each side including a leg (20) and an arm (22), the legs and arms comprising corrugated paper joined to plain paper, characterized in that the arms (22) extend between the legs (20), and in that the plain paper on an arm faces plain paper on the other arm and in that plain paper on a leg faces away from plain paper on the other leg. There is further disclosed such edge protector wherein the legs and arms are of paper having fluting on one face and include resilient biassing means (24) acting to urge parts of the respective sides towards each other. There is also disclosed a method for making such an edge protector and an edge protector fitted therewith.
Patent CA-2219210-A1 (CA)
Inventor: ARON CHARLES M
IPC: A63F9/24
Filed: 1996-04-24
Abstract: L'invention concerne une méthode permettant de rendre plus attractive une manifestation sportive à l'occasion de laquelle les paris sont autorisés, qui consiste à utiliser un ticket (30) à fonction double constitué de deux parties permettant de produire un souvenir de collection d'une rareté avérée. Une première partie (32) du ticket sert à consigner les détails concernant le pari, et est destinée à être utilisée pour encaisser les gains d'un pari gagnant, alors que la seconde partie (34) sert à identifier la manifestation sportive et le participant sur lequel le détenteur du ticket a parié et fait office de souvenir présentant une valeur potentielle en tant que pièce de collection. La rareté de la partie du ticket faisant office de souvenir est garantie en ce que cette dernière ne peut être obtenue que si l'on parie, et l'intégrité d'un marché secondaire d'articles de collection pour les parties souvenir du ticket est garantie grâce à des moyens d'authentification (36) des tickets destinés à empêcher la contrefaçon.
Patent CA-2219340-A1 (CA)
Inventor: LIN JACK HONG-ZEN
IPC: A61N1/05
Filed: 1996-05-31
Abstract: L'invention concerne un conducteur de défibrillation (10) implantable par voie veineuse qui comprend un fil conducteur (12) et des électrodes (16, 20) cylindriques coaxiales, une intérieure et une extérieure. L'électrode intérieure (16) est connectée au fil conducteur (12) et l'électrode extérieure (20) est connectée à une gaine (18) qui recouvre le fil en relation rotative par rapport à lui. La gaine est fixée à l'électrode cylindrique extérieure, de manière à ce que la rotation de ladite gaine par rapport au fil entraîne une rotation des électrodes cylindriques intérieure et extérieure, l'une par rapport à l'autre. L'électrode intérieure comporte une pluralité de crochets (22) qui s'étendent de manière générale transversalement ou tangentiellement à elle. Les crochets sont décalés de manière à ce que leurs extrémités terminales fassent saillie de l'électrode intérieure par effet de ressort. Les crochets (22) sont maintenus de force contre l'électrode cylindrique intérieure (16) par l'électrode cylindrique extérieure (20), à l'exception d'une fenêtre (24) réalisée dans l'électrode extérieure, qui permet aux crochets (22) de faire saillie vers l'extérieur par effet de ressort, lors de la rotation de l'électrode extérieure (20) par rapport à l'électrode intérieure (16). Une fois que les crochets sont ainsi exposés, la rotation à l'unisson de l'électrode intérieure et de l'électrode extérieure, permet aux crochets d'entrer dans le tissu cardiaque. Les crochets (22) servent à la fois de système de fixation et de conducteurs de stimuli électriques au tissu cardiaque.
Patent CA-2219722-A1 (CA)
Title: Method for automatically pressing a filter into a blood-collection tube
Inventor: SARSTEDT WALTER
IPC: B01L3/14
Filed: 1997-11-19
Abstract: A filter is pressed down in a collection tube holding separated blood as a lower solids mass and an upper liquid mass defining an interface with the lower mass. The filter has a sleeve fittable in the tube with a lower end of the sleeve covered by a membrane that fits snugly in the tube. A vertical level of an upper surface of the upper liquid mass in the tube is detected and a pusher is engaged with an upper end of the sleeve to push the filter downward in the tube. A vertical level of the interface is also detected. Downward pushing of the filter is stopped when either the upper end of the sleeve is at a predetermined spacing above the vertical level of the liquid upper surface or the membrane is at the vertical level of the interface. Thus two separate events can trigger stopping of the downward pushing: reaching the interface or reaching a certain fill level in the sleeve. Contamination of the upper liquid mass by over-insertion of the filter is prevented as well as contamination of the pusher and, possibly, the sample and the workplace by insertion of the filter past the point where the upper end of the sleeve reaches the level of the upper surface of the liquid mass.
Patent CA-2220409-A1 (CA)
Title: Pigmented, uv-cured, acrylic-based, pressure sensitive adhesives, and method for making same
Inventor: ANG T LIEM
IPC: C08F2/46
Filed: 1996-05-01
Abstract: Pressure sensitive adhesives that cure to a high cohesive strength at room and elevated temperatures, and a method for making such adhesives, are provided.  The adhesives comprise an acrylic copolymer compounded with a pigment and a hydrogen-abstracting photoinitiator. A tackifier and/or multifunctional acrylate or methacrylate can also be added. The acrylic copolymer is prepared from a substantially acid-free monomer mixture of at least one alkyl acrylate and a tertiary amine-containing monomer, such as DMAPMA. Other monomers, including polar vinylic monomers and diesters of ethylenically unsaturated dicarboxylic acids are, preferably, also included. Despite the presence of titanium dioxide or other pigments, the compounded copolymers are UV-cured to a high cohesive strength through the combination of tertiary amine functional groups and hydrogen-abstracting photoinitiators, which form synergistic pairs when irradiated, leading to free radical formation and polymer cross-linking.  Unpigmented adhesives are also provided.
Patent CA-2220608-A1 (CA)
Inventor: HOPKINS JOHN WILLIAM
IPC: C21D9/22
Filed: 1997-11-27
Abstract: A method of making a self-sharpening cutting blade from a blank comprises the steps of identifying a leading edge, designating a targeted portion of the rear surface, and quickly heating the targeted portion including the leading edge. In addition, a cutting blade has selectively hardened surfaces, allowing the blade to maintain its sharpness by promoting deterioration of underlying material rather than of the leading edge.
Patent CA-2224391-A1 (CA)
Title: Mixtures of esterified carboxy-containing interpolymers and lubricants containing them
Inventor: COVITCH MICHAEL J
IPC: C10N30/02
Filed: 1997-12-10
Abstract: Mixtures of esterified carboxy-containing interpolymers and additive concentrates and lubricating oil compositions containing same. Residual acidity of the esterified interpolymers may be neutralized by reaction with an amine.
Patent CA-2224725-A1 (CA)
Title: Bonding two corrugated mediums at flute tips ensuring accurate alignment
Inventor: SHAW NEIL WILLIAM
IPC: B31F5/00
Filed: 1996-06-18
Abstract: This invention relates to improved methods and apparatus for forming paper board structures in which two corrugated mediums are bonded together at their flute tips. The apparatus comprises: two register rolls (4, 6) for ensuring that the mediums are brought into precise flute tip to flute tip alignment for bonding; dependent electric motors to drive the register rolls in which one roll (6) is driven by a reference motor (15) and the second register roll (4) is driven by a follower motor (16); location sensing devices (18, 19) associated with each register roll (4, 6) to measure a value related to the location of a position on the periphery of each register roll; control means (17) which compares the measured values for each register roll and if necessary adjusts the voltage or current of the follower motor (16) to maintain alignment of the flute tips of the two mediums.
Patent CA-2225043-A1 (CA)
Inventor: SHINCHI AKIRA
IPC: H01R4/24
Filed: 1997-12-17
Abstract: Terminals are inserted into groove portions of a first member and a covered wire is mounted on each of the terminals. Protrusions of a second member are engaged with the groove portions of the first member.  The second member is pressed so that the covered wires are pressed against press-fit blades of the terminal so as to attain electric conductivity.  By ultrasonic vibration in the pressing condition, the first member and second member are fused with each other.  At the same time, by ultrasonic vibration, the cores of the covered wires are fused with each other and the core and the press-fit blades are fused with each other. By the fusing of the cores mutually and the core and press-fit blades, the contact area is increased thereby decreasing contact resistance.
Patent CA-2225101-A1 (CA)
Title: A rotating connector for operative connection between a buoy and a floating vessel for the production of hydrocarbons
Inventor: MIDTTVEIT STEINAR
IPC: E21B43/16
Filed: 1996-06-19
Abstract: A rotating connector or coupling device for interconnection between at least one fluid passage (9) through a submerged buoy (1, 2) and a pipe system on a floating vessel for the production of hydrocarbons, comprising a pair of cooperating, fluid-transferring swivel members in the form of a female member (3) and a male member (4) which may be introduced axially into or withdrawn from each other, the female member (4) being permanently fixed to the buoy (1, 2), and an electrohydraulic swivel (30) which is arranged on the top of the male swivel member (4) and comprises partly a slip-ring arrangement (37, 45) for the transfer of high electric power and electrical/optical control signals, and partly a number of hydraulic courses for the transfer of hydraulic signals.  The female and male swivel members (3, 4) include cup-like housing members (60, 61) which are insertable into each other and which, at their lower ends, have coupling discs (62, 63) with cooperating connector parts (81, 82; 83, 84) forming part of respective underwater couplers (72, 73), the housing members (60, 61) being arranged to be filled with water, for submerged operation of the underwater couplers (72, 73).
Patent CA-2225311-A1 (CA)
Title: Le chauffe conduit de surete
Inventor: TRUCHON MARTIN
IPC: B60H1/02
Filed: 1998-02-12
Abstract: Le chauffe conduit de sureté devra être fabriqué en trois parties bien distinctes reliées l'une à l'autre. PARTIE A : Le conduit Cylindrique d'un diamètre de 3 à 4 pouces et d'une longueur de 12 à 15 pied, il empruntera la propriété de type accordéon pour sa grande flexibilité et un ajustement facile de la longueur minimum requise d'un usage à un autre. Ex : Conduit de sécheuse Il pourra être recouvert à l'extérieur d'une pellicule isolante d'aluminium pour plus d'efficacité énergitique. PARTIE B : L'adapteur de chaufferette Deux sorties s'offrent à nous: La sortie du haut: elle est d' environ de 8 à 12 pouces de longueur et de 2 pouces de largeur. L'adapteur du haut prendra la forme de la brosse à tapis d'un aspirateur, il sera muni d'une bande de caoutchouc à l'entrée et épousera la forme requise d'une sortie à une autre. Pour joindre le conduit il prendra la dimension cylindrique de 3 à 4 pouces de diamètre et sera muni d'un twist pour visser le conduit à l'adapteur. Le bras de maintient: Pour maintenir solidement l'adapteur à la sortie de la chaufferette, on utilisera un bras de maintient partant au dessus de l'adapteur pour se rendre à la hauteur de la moulure de départ de la voûte du véhicule et du haut du pare-brise. Le bras muni d'une visse sans fin ou simplement d'une visse téléscopique rendra le bras extensible pour aller joindre l'adapteur à la moulure de la voûte. Les deux extrémités de ce bras seront muni de deux plaquettes flexibles. La plaquette du bas sera intégré ou fixée sur le dessus de l'adapteur . La plaquette du haut sera flexible et retenu au bras lui-même. Le dessus de la plaquette du haut sera recouvert de caoutchouc pour ne pas abîmer la moulure de la voûte et le haut du pare-brise. En vissant, le bras de maintient viendra écraser la moulure de caoutchouc sur les parois de la sortie de la chaufferette pour plus d'étanchéité.
Patent CA-2227622-A1 (CA)
Title: A gravitational energy system (momentum turbine)
Inventor: SEN ASIM K
IPC: F03G7/08
Filed: 1998-04-02
Abstract: This invention relates to a new and useful improvements of an earlier scheme patented by this inventor (Canadian Patent No. 1,245,992, issued December 6, 1988) for generating electricity using gravitational energy. The improved scheme uses a set of massive underground spinning wheels, wherein each wheel is geared to a large driving wheel requiring a lower input torque, which wheel is then fitted with a mechanism to receive and transmit gravitational torque pulses from a passing vehicle to keep the wheels in motion. The above transmission mechanism consists of a stepping board, a cylindrical rod and a movable striking head with a toothed jaw attached to the lower end of the cylindrical rod by a hinge fitted with a torsional spring. The upper end of the cylindrical rod which protrudes above the ground surface is rigidly connected to the moving end of the stepping board and both are kept in their initial upward position by means of a "recocking" compression spring. Also, the upper jaw of the striking head which initially remains closed and attached with the cylindrical rod due to the spring pressure, is designed to rest on a set of matching teeth.  The electricity is generated by using each spinning wheel in combination with an appropriate gear system to act as the prime mover of an alternator.
Patent CA-2228357-A1 (CA)
Title: Universal switching power supply
Inventor: MERCIER CLAUDE
IPC: H02M3/337
Filed: 1998-01-30
Abstract: A switching power supply for generating one or more output voltage levels wherein the power supply is operable over a range of AC and DC input supply voltages.      The switching power supply comprises an input stage, a start-up stage, a first stage, and a second stage. The first stage energizes the second stage, and the second stage includes output circuits for generating one or more output voltage levels. The second stage also includes a transformer for isolating the first stage.
Patent CA-2229906-A1 (CA)
Inventor: STONER DAVID J
IPC: B01D46/00
Filed: 1998-02-18
Abstract: Dust emission is controlled by a preferably short fill at the expulsion end of each chamber, and selective venting of residual pressure through the air-inlet end.          This selective venting is accomplished through use of a novel seal or "pad" that has an extension for tightly covering and sealing the material-exhaust end of each chamber while the chamber is in a dust-control plenum.          The pad extension is notched so that it leaves the air-inlet end uncovered, permitting pressure venting through the notch and the air-inlet end. To provide truly effective sealing of the pad extension against the wear plate above the chamber that is in the plenum, the extension is reinforced by a strong metal plate which is embedded in the pad.  Careful contouring of the main material-conveying ports in the pad optimizes the performance.  A new all-pneumatic pad-clamping pressure-control system has been found to provide excellent control of pressure and uniformity of wear, with a minimum of working parts and adjustments.
Patent CA-2232453-A1 (CA)
Inventor: BERG ELNA
IPC: A61M15/00
Filed: 1996-09-23
Abstract: An inhalation device for inhalation of a pharmaceutically active substance comprising means for generating a negative pressure or vacuum and means for housing an inhaler within said device, said device comprising a constant volume and a variable volume in fluid connection with each other, said negative pressure or vacuum being generated in the constant volume through the variation of the volume in the variable volume whereby the substance is moved from said inhaler and dispersed in said constant volume, a flow regulating valve for regulating the flow of substance to the constant volume and a channelled region surrounding an outlet in said contant volume to prevent substance leaving said outlet when not in a dispersed state.
Patent CA-2233939-A1 (CA)
Title: Pulling arrangement for a domestic electric cable
Inventor: HUG HANSPETER
IPC: H02G1/06
Filed: 1996-10-04
Abstract: The arrangement (1) comprises a first device (2) for pulling and pushing a string (3) and a second device (4) for guiding the string (3) in the region of a wall aperture (5). The devices (2, 4) are mutually connected by a flexible tube. The first device (2) for pulling and pushing the string (3) is controlled by means of a radio device (9) at a wall aperture (10) where the electric cable is attached to the string (3). The string (3) is guided. Only one operator is needed. The arrangement is simple to install.
Patent CA-2234416-A1 (CA)
Title: Immunochemical determination of multivalent analytes
Inventor: HAUSER HANS-PETER
IPC: G01N33/531
Filed: 1998-06-03
Abstract: The present invention relates to an immunochemical method for qualitatively or quantitatively detecting an analyte in which first and second binding partners are brought into contact with the analyte and the binding of the binding partners to the analyte is detected using known methods. According to the invention, both the binding partners are prepared recombinantly in the same host using different vectors (V1 and V2) for expressing fusion proteins, with the first binding partner being expressed as fusion protein Fl in vector V1 and the second binding partner being expressed as fusion protein F2 in vector V2. The advantage of the novel method, which can also be employed for simultaneously determining several analytes, lies in the fact that its sensitivity and specificity are superior to those of known methods.
Patent CA-2236614-A1 (CA)
Title: Continuous industrial production of unsaturated aliphatic aldehydes in a tube bundle reactor
Inventor: FUCHS HARTWIG
IPC: C07C45/38
Filed: 1998-05-27
Abstract: A process for continuous industrial production of unsaturated aliphatic aldehydes having a boiling range from 95 to 136°C by oxidative dehydrogenation of the corresponding alcohols with an oxygen-comprising gas over a supported catalyst consisting of copper, silver and/or gold on an inert support in a tube bundle reactor, rapid cooling of the reaction gases and removal of the aldehydes from the resulting condensate with recycling of the unconverted alcohols comprises a)  vaporizing the alcohol, b)  admixing the alcohol vapor with an oxygen-comprising gas, c)   initially passing the resulting oxygen-comprising alcohol vapor at above the dew point of the alcohol but below the commencement temperature of the reaction through a layer of one of the abovementioned supported catalysts which is at least 0.5 cm in thickness and only then d)  reacting the oxygen-comprising alcohol vapor at from 300 to 600°C in a sufficient number, for the desired capacity, of parallel reaction tubes surrounded by a fluidic heat transfer medium, packed with the supported catalyst and having an internal diameter D of from about 0.5 to 3 cm and a length of at least 5 cm, to form the corresponding aldehyde.