baber/WOPTO huggingface dataset:
Patent CA-2202941-A1 (CA)
Title: Depolymerization
Inventor: KRZYWICKI ANDRZEJ Z
IPC: C10G1/10
Filed: 1997-04-17
Abstract: Thermoplastic waste may be depolymerized by heating the thermoplastic to a temperature from about 623°K to 773°K at a low pressure for a time of at least 30 minutes in the presence of a catalyst.          Optionally the depolymerization may be conducted in the presence of hydrogen and in the presence of other hydrocarbon streams. The product is suitable to go into a petroleum refinery product stream or into a petrochemical plant as feedstock, e.g. a naphtha steam cracker for the production of ethylene and coproducts. The invention provides a method to "recycle" plastics to valuable feedstocks.
Patent CA-2206118-A1 (CA)
Title: Internal registration of gas/air - and other fluid flows in a human body and use of pressure sensors for such registration
Inventor: GJERSOE BJORN G
IPC: A61B7/00
Filed: 1995-12-12
Abstract: A method for internal registration of the flow of a fluid into, in or out of a living body wherein one or a series of sensors are placed at one or more points along the flow path of the fluid and the registration takes place through the utilisation of the sensor's or sensors' inherent, pressure -and/or temperature-dependent physical and electrical properties, by measuring the temperature and the difference in temperature in the flowing fluid.
Patent CA-2210157-A1 (CA)
Title: Vertical blind
Inventor: NAKAMURA HIDEHIKO
IPC: E06B9/36
Filed: 1997-07-10
Abstract: A vertical blind that includes a plurality of louvers of which certain louvers are alternately positioned and can placed in various positions so that the vertical blind can be fully changed in form. The vertical blind further includes a rotation-transferring mechanism on alternating carriers. The rotation-transferring mechanism serves to transfer the rotation of the shaft, which is mounted in the head rail, to the louvers, which are hung from the alternating carriers, so that the louvers rotate around their vertical axes. If the louvers that are hung from the carriers with the rotation-transferring mechanism are positioned so that they are almost perpendicular to the head rail, each louver hung from those carriers that are not equipped with a rotation-transferring mechanism almost covers each space left between the louvers on either side of the louver hung from the carrier with the rotation-transferring mechanism.
Patent CA-2210222-A1 (CA)
Inventor: KRONLUND BERTIL KARL
IPC: H01L29/861
Filed: 1996-01-17
Abstract: Cette invention concerne un procédé de fabrication d'un contact ohmique (5) pour une couche .alpha.-SiC de type p (3b) dans un dispositif à semiconducteur (1). Des couches d'aluminium, de titane et de silicium sont déposées sur ladite couche .alpha.-SiC (3b). Les couches déposées (5) sont ensuite soumises à un recuit afin qu'elles (5) soient, au moins en partie, converties en siliciure d'aluminium et de titane.
Patent CA-2211389-A1 (CA)
Title: Novel pharmaceutical combination
Inventor: HARMENBERG JOHAN GEORG
IPC: A61K31/66
Filed: 1996-02-02
Abstract: The invention relates to pharmaceutical compositions for topical administration comprising a topically acceptable antiviral substance and an antiiflammatory glucocorticoid in a pharmaceutically acceptable carrier. The pharmaceutical composition can be used in the prophylactic and curative treatment of herpesvirus infections in mammals including man. The invention also relates to the use of a combination of a topically acceptable antiviral substance and an antiinflammatory glucocorticoid for the manufacture of a midicament for said prophylactic and curative treatment.
Patent CA-2212004-A1 (CA)
Title: Optical element retaining member and method of manufacturing same
Inventor: TAKEMURA KOJI
IPC: G02B6/24
Filed: 1997-07-30
Abstract: In the optical element retaining member 10, a groove 13 of high precision can be formed, by a simple step, without conducting an etching operation or a precise working operation.      A plurality of convex portion 12 made of ceramic, glass, silicon or the like are spliced on the substrate 11 made of ceramic, glass, silicon or the like, so as to retain the bare fiber 21 of the optical fiber in the groove between these convex portions 12.
Patent CA-2212353-A1 (CA)
Inventor: MACKENZIE JOHN
IPC: B62J15/00
Filed: 1997-07-31
Abstract: A mudguard comprises a first portion that is fixed relative to the frame of a bicycle and a second arcuate portion mounted to tracks associated with the first portion to be extended from or telescoped therein as desired.  The distal end of the second portion is supported by struts which are rotatable about a rim forming a part of a mount secured to the wheel axis in concentric relation therewith.  The arrangement permits a relatively rattle free attachment of the mudguard.
Patent CA-2218322-A1 (CA)
Inventor: JACEWICZ VICTOR WITOLD
IPC: A61K31/44
Filed: 1996-04-02
Abstract: La présente invention décrit une nouvelle forme physique d'acide (E)-3-[6-[[(2,6-dichlorophényl)-thio]méthyl)-3-(2-phényléthoxy)-2-pyridinyl]-2-acrylique ainsi que son utilisation thérapeutique.
Patent CA-2218990-A1 (CA)
Inventor: MALOUIN CARL
IPC: A61G7/053
Filed: 1997-12-22
Abstract: Le support de lit est conçu pour être installé sur une base de lit en fer. Le support sert de point d'appui pour l'entrée ou la sortie du lit des personnes handicapées ou en perte d'autonomie. Les supports de lit concurrents, actuellement sur le marché, procurent le même type d'aide, mais de façon différente puisqu'ils exigent une plus grande autonomie de la part des usagers. Les supports de lit concurrents pivotent sur plusieurs angles et se barrent sur 3 angles à l'aide d'un crochet inséré à la ba se. Dans la présente invention "support de lit", nous offrons des avantages uniques, tel qu'un appui bras rembourré et un bras transversal à double position fixé à l'appareil. Le "support de lit" peut facilement être fixé du côté droit o u gauche du lit. De plus, lorsque l'appareil ne sert pas, nous pouvons soulever la partie horizontale de la barre et la positionner dans un format de rangement.
Patent CA-2219193-A1 (CA)
Inventor: NIEDERHOLTMEYER WERNER
IPC: B02C18/22
Filed: 1997-10-22
Abstract: The  tire  shredder  has  a  frame  supporting  two parallel,  vertically spaced rails on which are mounted a wheeled carriage.   A variable speed,  bi-directional motor provides reciprocating movement of the wheeled carriage on the  tracks.    The  wheeled  carriage  supports  a  cutting assembly  which  includes  a  drive  motor,  a  shaft  and  a plurality of circular saws mounted on the shaft for rotation with the shaft.   The shaft is mounted with its axis of rotation  parallel  to  the  direction  of  movement  of  the carriage.  Tires are fed to the circular saws by a conveyor system.  A bottom conveyor carries the tires substantially parallel to the floor.  A top conveyor, is positioned above the first conveyor,  slanting downwardly toward the bottom conveyor from the opening for the tires to the discharge point adjacent the saws.   Both conveyors are driven by a variable speed motor.  Alternatively, the carriage may carry a plurality of  rotary cutting elements  axes of  rotation parallel to the travel of the carriage.   By providing a plurality of rotary cutting elements tires coming in a wide variety of sizes can be handled.
Patent CA-2219684-A1 (CA)
Inventor: ZEYFANG FREDERICK WILLIAM
IPC: C23C2/00
Filed: 1997-10-28
Abstract: A vented cap assembly is secured to a specific part of a component for masking the specific part.   The cap assembly includes a closed first end, an open second end and a sidewall extending between the closed first end and the open second end forming an interior cavity for the specific part.  At least one vent track extends along the sidewall within the cavity.  The at least one vent track terminates at a pressure reservoir.  A sealing and venting assembly periodically relieves air pressure within the pressure  reservoir  when  an  excessive  amount  of  air pressure develops.
Patent CA-2219798-A1 (CA)
Title: Thickened pressure sensitive adhesive compositions for use in coaters
Inventor: NORTHEY PAUL J
IPC: C09J7/02
Filed: 1996-04-18
Abstract: A water-based pressure sensitive adhesive formulation is provided with one or more high molecular weight linear aliphatic polymers. The resulting composition can be used to form stable filaments or delivered from the coating die of a premetered coater in the form of a stable sheet at a flow rate substantially less than the minimum delivery flow rate achievable using the formulation without polymer. Low levels of polymer can provide dramatic improvement in the viscosity of such compositions, without detrimental effect on the adhesive and other desirable qualities of the composition. Provided is a coating composition comprising a water-based pressure sensitive adhesive formulation, and a polymer additive comprising poly(ethylene oxide) polymers or copolymers having a molecular weight of at least 1,000,000 g/mole, wherein the polymer additive is present at a concentration of between 1 ppm and 1000 ppm. Also provided is a method for preparing the coating composition and a coated product comprising the composition.
Patent CA-2220716-A1 (CA)
Inventor: HUANG TAI-LONG
IPC: E06B9/303
Filed: 1997-11-06
Abstract: An arched venetian blind includes an arched frame, a horizontal plate interconnecting two ends of the frame, a pivot seat fixed on the plate, and a plurality of radially extending slats which are mounted pivotally between the pivot seat and the frame.  A control device includes a plurality of coupling pieces mounted pivotally on an outer circumferential surface of the frame and connected respectively to the slats, and a pull unit which interconnects the coupling pieces and which can be pulled to rotate the slats by a desired angle.
Patent CA-2221934-A1 (CA)
Title: Method for making high density combination dry hay and haylage livestock feed
Inventor: LEASHNO MOSHE
IPC: A01D85/00
Filed: 1997-11-24
Abstract: A method of making a mixed feed livestock cargo unit suitable for long distance shipping mixes dry fodder with fermented silage in a ratio proportioned to produce a mixed feed product having a net moisture content in the range of from 15% to 40%.  The mixed feed product is compressed and then sealed in an airtight bag for shipment.  The mixed feed livestock cargo unit has a density in the range of from 500 to 700 kg/m3 and preferably has a weight in the range of from 30 to 50 kilograms.
Patent CA-2223394-A1 (CA)
Title: Method and apparatus for controlling staged combustion systems
Inventor: HOMA JOHN L
IPC: F23N1/02
Filed: 1996-05-24
Abstract: A method and apparatus is disclosed for controlling staged combustion systems of the type used for combusting two reactants wherein at least one reactant is supplied as two flows, the first of which is combusted with the flow of the other reactant in a primary stage and the other of which is combusted with the exhaust of the primary stage in a secondary stage. In the present invention, the respective flows are monitored and controlled to provide a desired equivalence ratio for both the first stage and for the burner overall which is adaptable in response to variable input conditions. By controlling the flows in this way, a calculated energy output or adiabatic flame temperature can be produced. The present invention can also control the reactant flows to each stage in response to measured parameters such as flame temperature or emission levels. In this way, the flows can be varied in order to drive the measured parameters to a desired level.
Patent CA-2223600-A1 (CA)
Inventor: FITZPATRICK STEPHEN W
IPC: C07D307/50
Filed: 1996-05-17
Abstract: A continuous process for producing levulinic acid from carbohydrate-containing materials in high yields is described. According to the process, a carbohydrate-containing material is supplied continuously to a first reactor and hydrolyzed at between 210° C and 230 °C for between 13 seconds and 25 seconds in the presence of between 1 36 and 5 36 by weight mineral acid. The hydrolysis produces hydroxymethylfurfural, which is removed continuously from the first reactor and supplied continuously to a second reactor. In the second reactor, the hydroxymethylfurfural is hydrolyzed further at between 195°C and 215°C for between 15 minutes and 30 minutes to produce levulinic acid which is continuously removed from the second reactor. The levulinic acid preferably is produced in at least 60 %, and more preferably at least 70 %, of the theoretical yield based on the hexose content of the carbohydrate-containing material.
Patent CA-2225296-A1 (CA)
Inventor: ALT HANS CHRISTIAN
IPC: C01C3/10
Filed: 1997-12-19
Abstract: This invention relates to a process for the production of granulates substantially comprising an alkali metal or alkaline earth metal cyanide from an aqueous solution of the cyanide by fluidised bed spray granulation.  According to the invention, superheated steam is used as the drying gas.  The steam is preferably circulated in a closed circuit, and only excess steam is discharged and condensed.          The process produces little waste gas and results in high quality granulates.
Patent CA-2226826-A1 (CA)
Inventor: WENGER JEAN-LOUIS
IPC: B31B50/54
Filed: 1998-01-13
Abstract: The device for turning the front panel of a plate-like workpiece within a folder-gluer comprises a substantially vertical retaining plate (20) located transversally slightly above the travelling plane of the plate-like workpieces, as well as a series of independent lifting fingers (30) located transversally below the travelling plane and slightly before the retaining plate (20), this series of independent lifting fingers (30) being actuated by atleast one cylinder from a horizontal rest position to a slanted position at the arrival of the front panel in order to direct it to the retaining plate (20) behind the retaining sliding rails (22,24). This device also comprises at least one pusher (40), substantially orthogonal to the retaining plate (20), actuated by an actuator (44) in order to separate a flap of the plate-like workpiece when the front panel passes against the retaining plate (20).
Patent CA-2230513-A1 (CA)
Inventor: HOLDEN W WAYNE
IPC: F28G3/16
Filed: 1996-08-28
Abstract: The present invention is directed to a sootblower (10) and particularly to a hub (80) and drive assembly (90) therefore capable of producing improved cleaning by directing the blowing medium over substantially all of the surface to be cleaned. A sootblower (10) in accord with the present invention includes a hub (80) and drive assembly (90) for converting the alternating, clockwise and counter-clockwise rotary output of a reversible drive motor (60) to unidirectional rotary movement of the sootblower lance (30). Further, the sootblower (10) of the present invention provides an incremental degree of lost rotational movement each time the direction of longitudinal movement of the lance (30) and nozzle assembly changes. Thus, the sootblower (10) of the present invention moves the cleaning nozzles (40) through different helical paths as the lance (30) moves in the forward and reverse directions to provide a plurality of crossed helical paths as the drive assembly (90) steps around the hub (80) to produce substantially full coverage cleaning of the surfaces of adjacent heat exchanger tubes.
Patent CA-2231187-A1 (CA)
Title: Surface-structured bristles, process for producing the bristles and a brush or interdental cleaning device made from the bristles
Inventor: WEIHRAUCH GEORG
IPC: B29C48/16
Filed: 1996-08-22
Abstract: The invention relates to a method for the manufacture of surface-structured bristle material from plastic by extruding a monofilament. Before or during extrusion a granular material is admixed with a thermally melted first plas-tics material forming the main component of the monofilament. The granular material comprises a second plastics material, which has a higher thermal strength than the first plastics material. The particle size of the granular material is such that the monofilament, during a subsequent stretching, is subject to a greater transverse contraction in cross-sections where there is little or no granular material than in cross-sections containing granular material. The invention also relates to a bristle with a surface structure from a first plastics material forming the main component and in which is embedded in a substantially completely covered manner a granular material of a second plastics material, the granular material forming a structuring on the bristle surface. The invention also relates to a brush, particularly a toothbrush or interdental cleaner, with a plurality of bristles, optionally combined into bundles and in which at least certain bristles have the afore-mentioned structure.
Patent CA-2231490-A1 (CA)
Inventor: DOHNKE INGO
IPC: H01R4/24
Filed: 1998-03-09
Abstract: The invention relates to a distribution block for telecommunications and data technology, in particular for the main distribution frame of telephone and data lines. The  distribution  block  has  contact  springs  which  are arranged in the interior of the modular distribution block and are formed from connection contacts, using insulation-piercing terminal technology, on the front and rear side of the block and from a telecommunications contact in the central region.  A pick-off contact is formed in the front region of the contact spring.   The distribution block contains an uncomplicated contact element, the wire routing is improved and reliable fitting of the cable wires is ensured.  The contact spring is formed from a base part and a contact spring part fitted to it.  Fixing points for the longitudinal  direction  and  an  opening  for  the  fitted contact spring part to pass through are provided in the central region of the base part.  A hole is arranged in the front region of the base part in order to fix the position of the contact spring part to be fitted.
Patent CA-2232647-A1 (CA)
Title: Method for joining members at ordinary temperature
Inventor: KUWABARA MITSUO
IPC: H05K1/03
Filed: 1998-03-19
Abstract: When a metal member and a ceramic member are joined to one another, an aluminum nitride sintered compact is prepared.  A liquid and a component which is mutually reactive with the liquid are applied onto the aluminum nitride sintered compact, and then a copper foil is laminated thereon.  Subsequently, when the members are left to stand at room temperature, the liquid and the component mutually cause an exothermic reaction.  The aluminum nitride sintered compact and the copper foil mutually diffuse, and they are tightly joined to one another.  Accordingly, the members to be joined are not thermally affected, and a desired joining strength can be obtained by using simple equipment.
Patent CA-2234522-A1 (CA)
Inventor: IRVINE ROY MACINTOSH
IPC: B03B5/62
Filed: 1998-04-09
Abstract: The invention concerns a particle separator which can be used to separate denser, non-elongate particles from less dense, elongate particles. The separator (10) has a separator tray (14). A series of guides (22) extends in the tray from an upstream end towards a downstream end thereof. A level control arrangement (28, 30) maintains a generally constant level of liquid in the tray with the guides partially immersed in the liquid. There is a discharge opening (38) at the downstream end of the tray through which liquid discharges from the tray under gravity. Particles which are to be separated are introduced into the upstream end of the tray and are conveyed downstream therein in the liquid. Relatively dense particles gravitate in the liquid and are discharged from the tray through the discharge opening. Elongate and less dense particles are aligned by the guides and are carried over the discharge opening by the liquid. The denser particles are collected separately from the less dense and elongate particles.
Patent CA-2238618-A1 (CA)
Title: Method and device for measuring the diameter of a roll of web material
Inventor: BIAGIOTTI GUGLIELMO
IPC: B65H18/20
Filed: 1996-11-22
Abstract: The method for measuring the diameter of a reel or roll of wound web material (N) involves the following steps: rotating said reel (L); detecting at least twice the moment when a given point (Lf) on the web material (N) passes a predetermined position; determining the time that elapses between said two passes or the amount of rotation (.alpha.) of the supporting roller (5); and calculating the diameter (D) of the reel (L) from said time (T) and the peripheral speed (V) of the reel (L) of from said amount of rotation (.alpha.) and the radius (R) of the supporting roller (5).
Patent CA-2238832-A1 (CA)
Title: Sport sunglasses resistant to fogging
Inventor: MAGE JEROME J M
IPC: A42B3/24
Filed: 1996-11-27
Abstract: Protective eyeglasses (e.g., sunglasses) for use in high speed outdoor sports activities the lenses thereof being resistant to condensation, is achieved by air circulation created by venturi effects. The glasses (10) comprise a frame front (20) having middle portions over the wearer's eyes which support protective lenses, and having endpiece portions (30) near the wearer's temples, the outboard edges of which attach temples which hold the glasses in place. A chamber is defined by the volume between the lenses and the wearer's face, and gaps are defined by the distance between the middle portions of the frame front and wearer's face. Apertures (34) in each of the endpiece portions of the front frame define an entrance of a ventilation channel for air flow through the frame front, adjacent to the respective chamber. Venturi forces are created within the ventilation channels to facilitate circulation of air. Improved ventilation, and the reduction or elimination of fogging on the lenses, is accomplished by low-cost and lightweight glasses.
Patent CA-2239722-A1 (CA)
Inventor: RENAK TODD W
IPC: G01R1/07
Filed: 1996-12-05
Abstract: An electro-optic voltage sensor for achieving voltage measurement without significant error contributions from neighboring conductors or environmental perturbations. The voltage sensor includes a transmitter (1), a sensor (4), a detector (43, 44) and a processor (62). The transmitter (1) produces a beam of electromagnetic radiation which is routed into a sensor (4). Within the sensor (4), the beam undergoes the Pockels electro-optic effect. The electro-optic effect produces a modulation of the beam's polarization, which is in turn converted to a pair of independent conversely-amplitude-modulated signals, from which the voltage of the E field is determined by the processor (62). The use of converse AM signals enables the signal processor (62) to better distinguish signal from noises. The sensor (4) converts the beam by splitting the beam in accordance with the axes of the beam's polarization state (an ellipse whose ellipticity varies between -1 and +1 in proportion to voltage) into at least two AM signals. These AM signals are fed into a signal processor (62) and processed to determine the voltage between ground conductor and the conductor (2) on which voltage is being measured.
Patent CA-2240948-A1 (CA)
Inventor: SHAPIRA OPHER
IPC: G06V20/69
Filed: 1996-12-13
Abstract: Cette invention concerne un procédé de repérage de zones d'une microplaquette (16) qui consiste à éclairer sélectivement ladite microplaquette (16) à partir d'une première source lumineuse (42) orientée généralement de manière oblique par rapport à la surface de la microplaquette (12), à prendre une première photographie de la microplaquette (16) éclairée par la première source lumineuse (42), à éclairer sélectivement la microplaquette (12) à partir d'une seconde source lumineuse (46) délivrant généralement une lumière diffusée, à prendre une seconde photographie de la microplaquette (16) éclairée par la seconde source lumineuse (46) et à produire une carte des zones présentant un intérêt à partir des première et seconde photographies.