baber/WOPTO huggingface dataset:
Patent CA-2259907-A1 (CA)
Title: Intramedullary, flexible fracture fixation device, using bi-axial prestressing
Inventor: PROTOGIROU G CONSTANTINE
IPC: A61F2/28
Filed: 1997-07-09
Abstract: The invention refers to a prosthetic device for the application of simultaneous axial and tranversal prestressing to obtain stable and elastic osteosynthesis of fractures. The device focuses on the concept of internal fixation with consideration for the natural frequency of the bone. The device for fracture fixation comprises a "tendon" (i.e. a tensionable wire) least one deformable element at the focus of the fracture, with the tendon and the deformable element being disposed almost parallel, whereby the device further comprises compression means to apply a compression force to the deformable element(s), so that the deformable element(s) deform(s) laterally. The device described can be used for fractures of long bones as well as for proximal femoral fractures. When used for long bone fractures, the device is an intramedullar flexible bar, with which we apply adjustable and measurable axial prestressing in order to compress the bone fragments and preload the bone. When used for proximal femoral fractures, the device is the same intramedullar flexible bar, with which we apply adjustable and measuring lateral prestressing while anchoring it on the femoral shaft exterior. By doing so we compress the bone fragments in order to neutralize the tension forces on the fracture and to avoid interfragmentary motions. The terms "axial prestressing" and "lateral prestressing" refer to axis of the long bone. The device allows us to achieve predetermined and measurable intramedullar transversal prestressing, which is a prerequisite for the application of axial prestressing.
Patent CA-2261707-A1 (CA)
Title: Nickel-containing strengthened sintered ferritic stainless steels
Inventor: SAMAL PRASAN K
IPC: C22C33/02
Filed: 1997-08-01
Abstract: Powder metallurgically produced ferritic stainless steel articles are strengthened by alloying the ferritic material with a small amount of nickel (up to 3.0 % by weight). Alloying is carried out by either admixing nickel powder to the ferritic alloy powder or by pre-alloying the stainless steel powder with nickel. Conventional sintering procedures, either in a hydrogen atmosphere or in a partial vacuum, are applicable. High strength stainless steel parts made in this manner are suitable for demanding applications, including automotive exhaust flanges and HEGO bosses.
Patent CA-2263004-A1 (CA)
Title: Filter medium and air filter unit
Inventor: ASANO JUN
IPC: B01D39/16
Filed: 1997-08-06
Abstract: A filter medium having excellent efficiency and an air filter unit using the same are provided which have air permeable supporting material (3, 4) on at least one surface of a PTFE porous film (2). The maximum amount of organic materials detected from the filter medium is 3ng or less per gram of the filter medium.
Patent CA-2266693-A1 (CA)
Inventor: WARD RICHARD M
IPC: E21B23/00
Filed: 1997-09-18
Abstract: A milling system has been invented for milling an opening in a tubular string in a wellbore extending down from a surface of the earth, the milling system, in one aspect, has a whipstock connected to an anchor assembly and a mill apparatus releasably connected to the whipstock, the mill apparatus having auto fill apparatus therein. A mill has been invented with a mill body with a top end and a bottom end, a flow bore through the mill body, and an auto fill apparatus in the flow bore. A valve assembly has been invented for selectively controlling fluid flow through a hollow tubular in a string of hollow tubulars in a wellbore extending from a surface of the earth into the earth, the valve assembly in one aspect having positions limited to at rest, circulate, and anchor set positions so that a fluid pressure indicating at the surface indicates only either a pressured up position for anchor setting or a pressured up position for fluid circulation. A milling system has been invented with apparatus for releasably containing an isolated charge of fluid. A float valve for use in wellbore operations has been invented with a valve member having a vent hole for releasing fluid pressure build up beneath the valve member. A fill sub has been invented which uses such a float valve.
Patent CA-2267091-A1 (CA)
Title: Method for preparing microcapsules of active substances coated with a polymer and novel microcapsules in particular resulting from the method
Inventor: THIES CURT
IPC: B01J13/06
Filed: 1997-09-24
Abstract: The invention concerns a method for preparing microcapsules containing an active substance coated with a substantially polar polymer film, characterized in that it consists in the following steps: suspending an active substance insoluble in a substantially polar polymer solution in an organic solvent, said substantially polar polymer being insoluble in liquid or supercritical CO2, said organic solvent being soluble in liquid or supercritical CO2; contacting the suspension with liquid or supercritical CO2 so as to extract the solvent from the polymer in a controlled manner and ensure the coacervation of the polymer; substantially extracting the solvent by means of supercritical CO2 and draining off the CO2/solvent mixture; recuperating the microcapsules in the form of dry powder. The invention also concerns microcapsules containing an active substance coated with a substantially polar polymer selected among the group consisting of polysaccharides, cellulose derivatives, acrylic, methacrylic polymers or derivatives of esters of vinyl, polyesters, polyamides, polyanhydrides, polyorthoesters and polyphosphazenes, characterized in that the polymer film has low surface energy and is free from organic solvent and in that the microcapsules are obtainable by said method.
Patent CA-2268161-A1 (CA)
Title: Water filtration device and method of its manufacture
Inventor: SCHARSTUHL JOHAN JAN
IPC: B01D63/02
Filed: 1997-09-30
Abstract: The invention relates to a water filtration device for the local sterilization of domestic and/or drinking water, comprising a filter housing (10) provided with an inlet (11) and outlet (12) connection and provided in said filter housing (10) with a bundle of capillary membranes (20), a first end (21) of said capillary membranes being open and another end (22) being closed, and said capillary membranes (20) being at the first end (21) cased in a membrane holder closing off the space between the capillary membranes (20) and the filter housing. The membranes are micro or ultrafiltration membranes having an asymmetric pore structure, the pore structure being asymmetric in that the pore diameter gradually decreases in the flow direction of the liquid low through the membrane wall. The membranes are manufactured from a polyether sulphone polyvinyl pyrrolidone polymer (PES/PVP polymer) and the pore diameter at the side of the asymmetric pore structure having the smallest diameter being between 0.01 and 0.3 µm, depending on the application.
Patent CA-2274674-A1 (CA)
Inventor: CHANG YIHUA
IPC: D04H1/64
Filed: 1997-12-12
Abstract: La présente invention concerne un procédé de production d'hydroxypropylcellulose méthylée (m-HPC). En régulant le degré de méthylation, on peut manipuler la température de solution critique inférieure (LCST) du polymère de m-HPC et l'amener au-dessous de la température ambiante, ce qui permet de stabiliser le polymère dans l'eau au-dessus d'environ 30 ·C. La présente invention concerne également des compositions liantes, des substrats fibreux, des produits dispersables dans l'eau et des produits thermoformables contenant le polymère de m-HPC.
Patent CA-2277277-A1 (CA)
Title: Expandable gastro-retentive therapeutic system with controlled active substance release in the gastro-intestinal tract
Inventor: ASMUSSEN BODO
IPC: A61M31/00
Filed: 1998-01-09
Abstract: The present invention describes a device for the controlled release of active compounds in the gastrointestinal tract with delayed pyloric passage, having a component expandable on contact with gastric juice, which is surrounded by a polymer covering which is permeable to gastric juice and active compounds. The device contains at least one active compound which is present in a multiparticulate preparation which releases the active compound into the gastric juice with a delay.      Compared with conventional pharmaceutical forms with delayed pyloric passage, the release of active compound from a device according to the invention can be better controlled; likewise the device can be easily rolled or folded and can be introduced into capsules without problems.
Patent CA-2277499-A1 (CA)
Title: Method of and apparatus for automatically coating the human body
Inventor: LAUGHLIN THOMAS J
IPC: B05B15/12
Filed: 1999-07-12
Abstract: In a system for coating human skin, a chemical composition, such as a cosmetic or medical formulation, is uniformly coated over the entire body or selected parts of the body of the person being coated. The system includes atomization of the coating composition, containment of the atomized spray, and residual recovery which together yield a novel method for applying chemical compositions.
Patent CA-2278893-A1 (CA)
Title: Strength-enhancing apparatus for metal part
Inventor: WATANABE SHIGERU
IPC: B24C3/22
Filed: 1999-07-26
Abstract: Disclosed is a strength-enhancing apparatus for a metal part comprising a recovery mechanism for sucking powder flow dust generated from glass beads crushed on a surface of a gear in a chamber to recover it together with drainage, wherein the recovery mechanism includes a liquid-spouting means arranged on a ceiling in the chamber, for effecting showering for the whole interior of the chamber.      Accordingly, it is possible to reliably recover the mist containing the powder flow dust floating in the chamber, and it is possible to reliably avoid adhesion and accumulation of the powder flow dust.
Patent CA-2281984-A1 (CA)
Inventor: SNUTCH TERRY P
IPC: C07K14/705
Filed: 1998-02-27
Abstract: Partial sequences for a novel mammalian (human and rat sequences identified) calcium channel subunit which we have labeled as the .alpha.II subunit, and an additional novel human calcium channel which we have labeled as the .alpha.IH  subunit are provided. Knowledge of the sequence of these two calcium channels permits the localization and recovery of the complete sequence from human cells, and the development of cell lines which express the novel calcium channels of the invention. These cells may be used for identifying compounds capable of acting as agonists or antagonists to the calcium channels.
Patent CA-2283093-A1 (CA)
Title: Recombinant chimeric viruses and uses thereof
Inventor: COCHRAN MARK D
IPC: C12R1/93
Filed: 1998-02-20
Abstract: This invention provides a recombinant herpesvirus of turkeys-Marek's disease virus chimera comprising a herpesvirus of turkeys unique long viral genome region and a Marek's disease virus unique short viral genome region.
Patent CA-2284123-A1 (CA)
Inventor: HENGSTENBERG ROLF
IPC: E04G7/32
Filed: 1999-09-28
Abstract: The invention relates to a vertical scaffold tube having attached thereto at least one holding means, into which horizontal and/or diagonal scaffold tubes can suspended each of the scaffold tubes having a reinforcement in that region where the holding means is attached to the vertical scaffold tube.
Patent CA-2284304-A1 (CA)
Inventor: BRENNAN PAUL M
IPC: G06F17/28
Filed: 1999-09-29
Abstract: A method and systems for identifying the language(s) of a text or speech based communication by comparing an arbitrary segment within the communication with one or more language segments contained within at least one language database. Once language identification of the communication has been achieved, a user is provided with options for the subsequent processing and/or retrieval of the communication. User options include translation to one or more specified secondary languages and/or media conversion (e.g. text-to-speech or speech-to-text). The converted communication can be accessed through available media retrieval devices (e.g. telephone, facsimile, personal computer).
Patent CA-2286967-A1 (CA)
Inventor: GOUEFFLEC GERARD LE
IPC: C21D1/52
Filed: 1999-10-20
Abstract: The products (1) pass from a charging end (2) to a discharging end (3); at the discharging end side, the furnace exhibits a heating zone (4) equipped with air/fuel burners (41), possibly doped with oxygen, and, on the charging end side, exhibits a flue-gas recuperation or drainage zone (5) in which the flue gases are removed.      At least one fuel body in the gaseous state is incorporated into the flue gases, and oxygen is introduced upstream of that possibly doped air/fuel burner (41) which is situated furthest upstream when referring to the direction of travel of the products (1), so as to burn the gaseous fuel body and thus raise the temperature in the recuperation zone (5).      Possible use for heating steel-making products prior to rolling.
Patent CA-2291985-A1 (CA)
Title: A device with improved fitment system
Inventor: VUIJK JELLE DANKERT
IPC: B05B15/00
Filed: 1999-12-07
Abstract: The present invention is directed to a device for the delivery of products, preferably cleaning products comprising an active ingredient, more preferably cleaning products comprising a surfactant, the device comprising at least one vented reservoir for containing at least one liquid product and a means for dispensing the product from the reservoir, the device being characterized in that the reservoir comprises at least one recess and/or protrusion and the dispensing means comprises at least one corresponding protrusion and/or recess, said reservoir being releasably secured in a leak-tight manner with the dispensing means such that fluid communication between said reservoir and said means is established, only when said protrusion(s) and recess(es) are fitted into each other, and said protrusion(s) and said recess(es) of said reservoir have a shape which is complementary, preferably exactly complementary, to said protrusion(s) and/or recess(es) of said dispensing means.
Patent CA-2292323-A1 (CA)
Inventor: SULLIVAN JOHN PATRICK
IPC: H04J14/02
Filed: 1999-12-06
Abstract: In a shared optical protection scheme, a network node is arranged to provide optical protection signals to at least two protection paths to offer fault protection for a number of the channels of a wavelength division multiplexed working traffic signal supported by the node, the network node including an optical switch array which couples individual protection channels to one or other of the protection paths and which is selectively reconfigurable to reroute individual protection channels to an alternative one of the protection paths in the event of a transmission fault.
Patent CA-2293467-A1 (CA)
Title: Polymerisation process
Inventor: ISNARD JEAN-PIERRE
IPC: C08F210/06
Filed: 1998-06-04
Abstract: The present invention relates to a continuous gas fluidised bed process for the polymerisation of olefin monomer(s) wherein the recycled gaseous stream withdrawn from the reactor is divided into two streams (A and B) and that (a) a first stream (A) having been cooled to a temperature at which liquid condenses out is then reintroduced directly into the fluidised bed in the reactor in such a way that, at any time, said condensed liquid is continuously introduced into said bed at a minimum rate of 10 litres of liquid per cubic metre of fluidised bed material per hour, and (b) a second stream (B), which by-passes the above cooling/condensing step, is passed through an exchanger and is then reintroduced into the reactor. The continuous introduction of a liquid into the reactor reduces or even eliminates fouling problems which can be encountered in conventional gas phase olefin polymerisation processes.
Patent CA-2297370-A1 (CA)
Title: Mechanical return fail-safe actuator for damper, valve, elevator or other positioning device
Inventor: MCINTOSH DOUGLAS S
IPC: H02K11/00
Filed: 2000-02-18
Abstract: The electrically powered actuator includes a capacitor for supplying supplemental electrical pourer to a motor in response to a loss of power to the motor from a main power source in order to enable the motor to overcome the magnetic resistance of the motor and a frictional resistance of a gear train in order to bias a positioning device into a fail-safe position. The supplemental electrical power supplied to the motor supplements the biasing force of a spring or the like for biasing the positioning device from an operative position into the fail-safe position. The capacitor is connected to the electrical circuit of the motor so as to be charged during normal operation of the motor and for delivering a pulse of reverse polarity power to the motor in response to a loss of power to the motor from the main source of power.
Patent CA-2297963-A1 (CA)
Title: Couture pour tissu
Inventor: HOLDEN DAVID
IPC: D21F1/00
Filed: 1998-08-06
Abstract: La présente invention concerne une structure de couture pour tissu sécheur tissé comprenant une spirale hélicoïdale ou un ensemble de boucles (43) piquées ou tissées dans l'épaisseur du tissu au moyen de fils (42) en contact avec les boucles, disposés dans le sens machine. Le plan neutre (44) du tissu est amené vers le côté en contact avec le papier du tissu du fait que les fils (41) du tissu du côté en contact avec le papier ont un diamètre inférieur à celui des fils (40) du côté machine du tissu. Une paire de fils (44) sens travers de diamètre égal constitue les fils d'extrémité adjacents aux boucles.
Patent CA-2298878-A1 (CA)
IPC: C02F1/32
Filed: 2000-02-15
Abstract: The liquid separation system described herein treats fluids, such as sea water or other solids/liquid mixtures, in two phases. Fluid is first run through a cyclonic separator to substantially remove "larger" solids, and the resultant liquid is then passed through a photochemical reactor to kill organisms therein.
Patent CA-2299284-A1 (CA)
Inventor: KIEKEN LAURENT DANY
IPC: C01F11/18
Filed: 1998-08-05
Abstract: Enhanced macromixing, mesomixing, and micromixing of multiple discrete reactant streams, particularly for precipitation reactions of low density pumpable fluids, are obtained by controlled continuous high pressure multiple reactant streams flowing into a chemical mixer/reactor (120). Individual reactant streams are pressurized to about 8,000 to 50,000 psi and achieve velocities up to about 250 meters/second in the final stage of the chemical mixer/reactor (120). Reactant flows are controlled by a combination of a fixed restriction and a variable driving pump (102, 102').
Patent CA-2300528-A1 (CA)
Title: Mold section and die ribs for tire curing mold
Inventor: COLEMAN RICHARD E
IPC: B29C33/02
Filed: 2000-03-14
Abstract: A mold for a pneumatic tire includes a plurality of mold sections that cooperate to form an annular mold. Each of the mold sections has a body with an inner surface. The body defines at least one longitudinal groove that opens at the inner surface. The body defines at least one longitudinal groove that opens at the inner surface. The groove has a mouth and a body with the width of the mouth being smaller than at least the largest width of the body. In one embodiment of the invention, the groove has a female dovetail cross section.   The grooves in the mold sections cooperate to form a continuous, 360 degree groove about the tire mold. A plurality of die ribs are slidingly disposed in the grooves. Each die rib has a base that corresponds with the cross section of the groove. Thus, the die rib in the above-embodiment has a male dovetail cross section that is configured to slide within the groove. The dovetail configurations form an interference fit between the die ribs in the mold sections while allowing the die ribs to be installed by sliding them longitudinally within the grooves.
Patent CA-2301486-A1 (CA)
Title: Leak-proof edible container
Inventor: ROTH RANDY
IPC: A21D13/32
Filed: 2000-03-21
Abstract: A bread-based edible container sized to be hand-held and shaped to avoid leaking of food products therein. The container has a tubular shape that includes a rounded bottom end, an opened top end and an annular wall joining the two. A food-receiving cavity is defined there-between. Both the inner and outer surfaces of the container are crusted. An apparatus and a method for making such an edible container are also provided.
Patent CA-2303679-A1 (CA)
Inventor: KOBAYASHI TOSHIO
IPC: D04H1/492
Filed: 2000-03-31
Abstract: A nonwoven fabric making apparatus adapted to continuously feed a fibrous web 30 in one direction, to eject streams of high pressure fluid from a plurality of nozzles 20 against at least one surface of the web 30, thereby to entangle component fibers of the web 30 and to obtain a predetermined nonwoven fabric. On the assumption that a Y-axis extends in a direction along which the web 30 travels and an X-axis extends to intersect the Y-axis at right angles, the nozzles 20 are arranged at predetermined intervals to define a straightly extending a first nozzle array R1 which is declined at a predetermined angle with respect to the Y-axis. The nonwoven fabric obtained has no impact traces by ejection of the streams of high pressure.
Patent CA-2309362-A1 (CA)
Title: Chain saw
Inventor: RONKKO VEIJO
IPC: B27B17/14
Filed: 2000-05-24
Abstract: The present invention relates to a chain saw comprising a chain arranged on a saw flange (5). The chain saw is usually arranged in a multi-purpose head of forestry machinery by a mounting flange (1) immobile in regard to the multi--purpose head, whereby the chain is rotated by a chain wheel (4) controlled by a power unit. In order to tighten the chain, the saw flange, or a relevant part of the chain saw comprising the same, is arranged to move parallel with the lon-gitudinal axis (A) of the saw flange in regard to the chain wheel. This is achieved by a tightening device and at least one supporting guide therein which are attached to the mounting flange of the chain saw or a structure ar-ranged therein. By arranging the supporting guide in the tightening device to extend onto both sides of the center of the chain wheel parallel with the longi-tudinal axis of the saw flange, the saw flange is made to move in a completely supported manner parallel with its longitudinal axis in regard to the chain wheel.
Patent CA-2309507-A1 (CA)
Title: Method for making security systems more tamper resistant and a security system
Inventor: UNTERSCHULTZ DAVID DARRELL
IPC: G08B29/04
Filed: 2000-05-25
Abstract: A method for making a security system more tamper resistant involving the step of monitoring an electric reference characteristic in a detection circuit of a security system and generating random periodic changes to the electrical reference characteristic in order to detect any tampering with the electric reference characteristic in the detection circuit.
Patent CA-2310817-A1 (CA)
Inventor: SOCCI ROGER DAVID
IPC: A63B69/36
Filed: 1998-10-23
Abstract: L'invention porte sur un appareil et un procédé qui permettent de détecter un mouvement de la tête et d'émettre un signal renseignant sur ce mouvement. Des capteurs (40) détectent les mouvements de la tête par rapport à deux axes perpendiculaires. Le signal émis par le capteur est enregistré dans un microprocesseur (30) qui calcule un signal de retour renseignant sur l'écart de mouvement par rapport à une courbe pré-programmée souhaitable. Le signal de retour est transmis à un témoin (50) qui renseigne le porteur de la coiffe sur le mouvement de la tête. Ce dispositif convient pour la surveillance des mouvements de la tête dans diverses applications telles qu'athlétisme, sports et sécurité.
Patent CA-2311033-A1 (CA)
Title: Release coating for tapes
Inventor: SPITZER JAN J
IPC: C08F279/04
Filed: 2000-06-12
Abstract: The present invention is directed to a release coating composition comprising a polymer of butadiene, styrene, acrylonitrile polymer having a T g from 0°C to about 75°C. The present invention is also directed to an article of manufacture having a release coating comprising the polymer for pressure sensitive adhesives.