baber/WOPTO huggingface dataset:
Patent CA-2198228-A1 (CA)
Title: An inlet slice assembly, for a pulp slurry processing machine
Inventor: LUTHI OSCAR
IPC: D21F1/02
Filed: 1995-08-16
Abstract: A chamber having a slurry-admitting inlet (14) at one end has a metering opening (18) lengthwise thereof for feeding slurry to an associated slurry processing machine. A rotatable bar (20), having a plurality of spaced-apart grooves formed therein, is disposed in immediate proximity to the metering opening (18) to control slurry-flow through the opening. The grooves insure that access to the opening, by the slurry, will be greater than the largest floc diameter of the pulp at all operating conditions.
Patent CA-2203241-A1 (CA)
Title: Subsurface safety valve of minimized length
Inventor: HILL THOMAS GUS
IPC: E21B34/10
Filed: 1995-10-12
Abstract: A subsurface safety valve 10 of minimized length comprises a tubular valve housing 12 with a valve closure member 18 therein movable between an open and a closed position, an axially shiftable flow tube 24 for opening the valve closure member 18, a plurality of longitudinally disposed springs 38 radially spaced about the housing 12 for biasing the flow tube 24 to a closed position, and a piston and cylinder assembly 26 to move the flow tube 24 to an open position, with a portion of the assembly 26 longitudinally overlapping at least one of the springs 38. The safety valve includes simple mechanisms to lock out the safety valve, and to establish secondary hydraulic communication with a wireline set secondary valve set within the locked out safety valve.
Patent CA-2205625-A1 (CA)
Title: Blank for a container, and a container having a closing and opening system
Inventor: FOUBERT ROLAND A
IPC: B65D27/34
Filed: 1997-05-16
Abstract: A blank for a container and the container afford a structure wherein the adhesive closure for the container also forms a tear strip to allow easy opening of the envelope once it is sealed.
Patent CA-2207078-A1 (CA)
Title: Insulin derivatives with increased zinc binding
Inventor: ERTL JOHANN
IPC: C07K14/62
Filed: 1997-07-25
Abstract: Insulin derivatives with increased zinc binding where Z is a histidine residue or a peptide having 2 to 35 genetically encodable amino acid residues, containing 1 to 5 histidine residues, are suitable for the production of pharmaceutical preparations for the treatment of diabetes. Insulins of the formula I form complexes with zinc, containing an insulin hexamer and approximately 5 to 9 mol of zinc per hexamer.
Patent CA-2210335-A1 (CA)
Inventor: DAY TERENCE ROBERT
IPC: F04D29/36
Filed: 1996-01-03
Abstract: Une hélice (10) présente un moyeu (12) doté d'une partie (22) partiellement sphérique entre les faces avant et arrière. Plusieurs pales (11a) sont fixées au moyeu (12), chacune (11a) présentant un talon (16) coïncidant avec la forme de la partie sphérique (22). Les pales adjacentes (11a) délimitent entre elles des passages qui convergent entre une entrée de fluide et une sortie de fluide. Le moyeu (12) peut comporter deux parties qui tournent l'une par rapport à l'autre, les pales (11a) étant fixées à chaque partie et la rotation relative des parties de moyeu modifiant le pas des pales (11a).
Patent CA-2210878-A1 (CA)
Title: Process and circuit arrangement for operating cold cathode discharge lamps
Inventor: KULLIK GUENTER
IPC: H05B41/39
Filed: 1996-11-21
Abstract: A first intermediate direct voltage is generated from a current source or on-board voltage, and a second sinusiodal intermediate alternating voltage is generated with a current inverter.  This intermediate alternating voltage is transformed by one or more transfer systems to the various triggering and maintaining voltages of different cold cathode discharge lamps.  Frequency-synchronous dimming is regulated by the pulse-pause ratio of a pulse group regulator in a broad frame by optically commanded triacs which are triggered in the zero crossing. The preconditions for the starting and maintenance characteristics of the lamps are thus always ensured.
Patent CA-2211822-A1 (CA)
Inventor: WITTET RICHARD G
IPC: G07D9/00
Filed: 1997-08-22
Abstract: Tool for holding single coin. It is know to have durable metal or plastic three ringed coil. In this invention two outer rings of coil are smaller in diameter than center ring. Coin is inserted under outer ring until it rests inside center ring where it is held securely in place. This invention also has metal ring at top allowing it to be attached to key ring, key chain or any other apparatus. This invention may be fabricated out of metal, plastic or any other construction material.
Patent CA-2217671-A1 (CA)
Inventor: THOMPSON MARK
IPC: B05D1/02
Filed: 1997-10-08
Abstract: A method of applying waterproofing compositions to outdoor surfaces such as painted, sealed or raw wood or painted or unpainted concrete, masonry, brick, stone, etc., by mixing the waterproofing composition with water and spraying the waterproofing composition on the surface to be treated.  The waterproofing composition can be sprayed onto the surface to be treated by a hand held sprayersuch as an aspirator or closed venturi type of hose end sprayer.
Patent CA-2222409-A1 (CA)
Inventor: SMITH RICHARD ANTHONY GODWIN
IPC: C12Q1/68
Filed: 1996-05-28
Abstract: Cette invention concerne un procédé de détection d'un composé qui imite, potentialise ou inhibe l'effet physiologique de la protéine ob, lequel procédé comprend les étapes suivantes: (a) pour un composé imitant l'effet physiologique de la protéine ob, déterminer l'effet du composé sur un élément de réponse d'ADN transducteur de signal et activateur de transcription (STAT) activé par protéine ob, couplé à un gène reporter; ou (b) pour un composé potentialisant ou inhibant l'effet physiologique de la protéine ob, déterminer l'effet du composé lors de la réponse donnée par une protéine ob sur un élément de réponse d'ADN STAT activé par protéine ob et couplé à un gène marqueur. L'élément sensible et le marqueur sont exprimés dans une lignée cellulaire réagissant à la protéine ob. Cette invention concerne également un nécessaire d'instruments pouvant être utilisés dans ce procédé, ainsi qu'un composé identifié à l'aide dudit procédé.
Patent CA-2223160-A1 (CA)
Title: Prosthetic heart valve with increased lumen
Inventor: VANNEY GUY P
IPC: A61F2/24
Filed: 1996-06-07
Abstract: A heart valve prosthesis (10) having a valve housing (12) providing a lumen (17) therethrough. The valve housing (12) has a first annulus on one end and a second annulus on the other end spaced apart from the first annulus. A suture cuff (50) is used for attaching the valve housing to heart tissue of a patient. The cuff (50) is attached between the first annulus and the second annulus. The cuff (50) is positioned such that prosthesis (10) is attached in a supra-annular position relative to a tissue annulus of the heart.  The design allows for an increased valve lumen.
Patent CA-2227027-A1 (CA)
Inventor: MARCELLIER ROBERT
IPC: E04C3/294
Filed: 1996-07-11
Abstract: A device for joining the web of a metal section to concrete in a composite construction. The device consists of a load diffuser (3) embedded in the concrete (2) and made up of one or more high adhesion reinforcing bars engaging an edge of the web of the section (1) as well as at least two points on a load distributor (4) contacting a frame (5a) on each side thereof. The device may be used in composite constructions.
Patent CA-2228052-A1 (CA)
Title: Process for conditioning kaolin clays prior to removing impurities
Inventor: NORRIS JOSEPH ALLEN
IPC: B03D1/02
Filed: 1996-07-25
Abstract: Kaolin clays are conditioned for the removal of colored titaniferous impurities by (A) first mixing the kaolin clay with a collector to condition the impurities, in the absence of a dispersant, but in the presence of sufficient water to yield a mixture having a solids content of at least 65 percent by weight and (B) then deflocculating the kaolin clay mixture at a pH of at least 4.0 with a dispersant in amounts sufficient to yield a kalolin clay slurry which is suitable for subsequent processing to remove colored titaniferous impurities.
Patent CA-2230454-A1 (CA)
Inventor: HUITSING JOHN A
IPC: B27M3/08
Filed: 1998-04-01
Abstract: A device for cutting trim moldings according to their displayed surface designs including a base for securely holding various molding widths, a profile gauge and a clamp for locking the profile gauge in an adjusted position on the base for a selected molding. The edge of the profile gauge functions to guide a cutting device such as a router. In a preferred embodiment, the clamp includes a router plate which is mounted at a predetermined angle relative to the base so the object molding is cut at such angle.
Patent CA-2231227-A1 (CA)
Title: Bouchon d'obstruction dilatable pouvant etre retire
Inventor: PEDERSEN DAG RAVN
IPC: E21B33/129
Filed: 1996-08-15
Abstract: L'invention concerne un bouchon d'obturation (1) conçu pour être utilisé dans un tubage (7), par exemple, dans des puits de forage d'huile et/ou de gaz, et comprenant un élément de garniture (2) en matériau élastique. Cet élément de garniture (2) est conçu pour se dilater, au moment de l'impact d'un outil en déplacement, depuis un premier diamètre jusqu'à un deuxième diamètre supérieur au premier diamètre correspondant au diamètre intérieur du tubage à obturer. Cet élément de garniture (2) est divisé en zones constituant au moins un élément de garniture dilatable d'obturation (34, 35) et au moins un élément de garniture dilatable de support (31, 32, 33), lesdits éléments de support (31, 32, 33) étant dilatables jusqu'à un diamètre plus petit que lesdits éléments d'obturation (34, 35). Ce bouchon d'obturation (1) est composé, de plus, d'un moyen d'ancrage (3) servant à maintenir ledit bouchon (1) à sa position dans le tubage par une surface de friction (28) poussée radialement contre le tubage (7).
Patent CA-2234377-A1 (CA)
Title: Aqueous coating composition
Inventor: CASPER JAMES WILLIAM
IPC: C09D133/06
Filed: 1998-04-06
Abstract: An aqueous coating composition comprising a dispersion in an aqueous medium of an acrylic addition polymer having carboxyl groups in which a proportion of the carboxyl groups are derived from a carboxyl functional chain transfer agent, the composition also coinprising a base in an amount sufficient to at least partially neutralise the carboxyl groups on the polymer.
Patent CA-2235732-A1 (CA)
Inventor: SCHMIDT MICHAEL
IPC: B67C3/00
Filed: 1996-11-13
Abstract: The invention relates to rotating apparatus (1) for the handling of objects, in particular containers (20), for example for the filling of said containers. The rotating apparatus comprises a support assembly (10) and a rotating assembly (14) driven by a rotary drive and rotatable in relation to the support assembly (10). The invention proposes that on the rotating assembly there is provided at least one discharge opening (46) for discharge of the fluid for cleaning a covering wall (22) stationary while the rotating assembly is turning, and optionally other fixed components (30). The at least one discharge opening (46) is connected to a fixed cleaning fluid supply by way of a revolving joint (42). The invention proposes that the revolving joint comprises a revolving joint support fixed or fixable to the support assembly to prevent rotation, and a revolving joint rotating unit connected or connectable to the rotating assembly (14) for rotation together. Said two rotating joint components are rotatably mounted on each other by axially directed sliding surfaces.
Patent CA-2238439-A1 (CA)
Title: Method for preparation of type ii collagen
Inventor: STURROCK ANNA G
IPC: C07K14/78
Filed: 1997-01-03
Abstract: A method of facilitating the removal of perichondrial membrane from unprocessed vertebrate cartilage tissue comprising contacting said cartilage with an acidic solution containing an acid protease under agitation for a period of time sufficient to digest or loosen said perichondrial membrane from said cartilage.
Patent CA-2239200-A1 (CA)
Title: Telecommunications system
Inventor: CAVES KEITH
IPC: H04L12/56
Filed: 1997-01-10
Abstract: Telecommunications traffic is transported between first and second narrow band networks across an ATM network. Traffic from users of the first narrow band network is packetised into structured blocks within ATM cells. Each cell is provided with a respective control information field and with a header for routing the cells across the ATM network to the second narrow band network. The control information field incorporates a length indicator indicative of the size of the structured blocks within that cell whereby to control recovery of the user traffic from the cell.
Patent CA-2239686-A1 (CA)
Title: Method of screening for enzyme activity
Inventor: SHORT JAY M
IPC: C12Q1/68
Filed: 1996-12-06
Abstract: Disclosed are processes to identify desired enzymatic activity from a pool of DNA collected from one or more organisms or a DNA subjected to random directed mutagenesis. The methods involve the generation of DNA library in a host cell and screening for the desired activity. The process can be applied to develop thermally stable proteins having improved enzymatic activity at lower temperature.
Patent CA-2239688-A1 (CA)
Title: Heat exchanger
Inventor: URCH JOHN FRANCIS
IPC: F28F3/04
Filed: 1996-11-15
Abstract: A heatexchanger is formed from a metal strip (102) wound concertina fashion to provide superimposed plates (101). The plates are stamped in pairs separated by a narrow section (103) which forms a return bend for folding the two plates over one another. Each plate (101) is provided with ribs (106) shaped to guide gas flow paths through the pocket between an inlet in one corner region of the plate and an outlet in a second corner region of the plate. Corrugated zones (109) are formed in the plate (101) between the ribs to promote a whirling motion of air as it travels between the ribs flanking the corrugated zones (109).
Patent CA-2241931-A1 (CA)
Title: Use of molecular sieves to promote wound healing
Inventor: WATT PAUL WILLIAM
IPC: A61L15/44
Filed: 1998-06-29
Abstract: The invention provides the use of a molecular sieve material, such as a microporous cross-linked polystyrene bead or a zeolite, for the preparation of a composition for application to a wound to promote wound healing. The molecular sieves are thought to promote wound healing of chronic wounds by adsorption of matrix metalloproteinases.
Patent CA-2245930-A1 (CA)
Inventor: POLK STEVEN A
IPC: F24H9/20
Filed: 1997-02-13
Abstract: A method and system for controlling a unit (20) for heating a building having multiple living/working spaces, the heating unit operating by the combustion of a fuel. The method includes sensing the concentration of a gas (10) in at least one of the living/working spaces, and comparing the sensed gas concentration to a selected threshold (2). The method also includes transmitting a control signal when the sensed gas concentration exceeds the selected threshold, receiving the control signal at a remote location, and disabling the heating unit (20) in response to receipt of the control signal (14). The system includes a sensor (24), a comparator, a transmitter and a heating unit controller (26) for performing the method.
Patent CA-2249678-A1 (CA)
Inventor: ELSDON STANLEY ROBERT
IPC: B65D90/34
Filed: 1998-10-06
Abstract: A combination valve for use in the fuel tank of a vehicle is provided. The valve advantageously combines a fuel level control valve with an over-pressure relief valve. The over-pressure relief valve is located in a housing which has an inlet from the fuel tank and an outlet to atmosphere, and comprises a poppet located in thehousing. The poppet is moveable between a normally closed position in which the poppet seals the inlet from the fuel tank and an open position in which the poppet exposes the inlet allowing the tank to release built-up pressure. The fuel level control valve comprises a level sensing body which extends into the tank and communicates with the fuel in the tank, a float associated with this body which comes into contact with the fuel in the tank as the tank is filled and a stopper adapted to allow the tank to vent during filling of the tank and to prevent tank venting when the tank is full. The fuel level control valve and the pressure-relief valve are connected via a vent passage. The vent passage enters the pressure-relief valve at the housing inlet and is sealed by the stopper when the tank is full. The combination valve is compact and particularly useful in vehicles where installation space for fuel tank accessories is minimal.
Patent CA-2250398-A1 (CA)
Title: Pump spout having drip valve
Inventor: NORCOM JOHN DAVID
IPC: B65D47/40
Filed: 1997-03-25
Abstract: A mechanical pump dispenser spout (10) has an inlet end (16), an outlet end (18) and a fluid-containing portion (14) therebetween. The fluid-containing portion (14) is angled upward from the inlet end (16) to the outlet end (18). The spout (10) also has a first one-way discharge valve (20) located at the inlet end of the spout (10). The first one-way discharge valve (20) is adapted to minimize air entering the pump from the spout (10). A second one-way discharge valve (24) is located at the outlet end of the spout (10) to minimize dripping of fluid from the fluid-containing portion (14) of the spout (10). The second one-way valve (24) faces downward. The first and the second one-way discharge valves open when the pump is actuated and close when the pump actuation is completed.
Patent CA-2252259-A1 (CA)
Title: Assembly for remote control and/or remote operation of a field device by means of a controller via a field bus
Inventor: DE GROOT VINCENT
IPC: G05B19/042
Filed: 1998-10-29
Abstract: In an assembly for remote control and/or remote operation of a field device by means of a controller via a field bus a program code describing the functionality of this device is stored in the field device. The field device contains  a  processor  in  which  the  program  code  is implementable. The controller is equipped with a run-time environment  in  which  the  program  code  can  be  run following  transfer  from  the  field  device  to  the controller via the field bus. The remote control and/or remote operation of the field device is implementable by transferring field device parameters via the field bus in the run-time environment.
Patent CA-2253745-A1 (CA)
Inventor: ROBBINS LAURANCE E
IPC: F41A19/02
Filed: 1997-04-10
Abstract: A firearm with a trigger (14), a hammer, an automatic sear (18), and a selector switch (16) connected to a rotatable firing control cam (30) for selecting among types of firing selections of the firearm. The types of firing selections include safe, semi-automatic, limited automatic burst, and full automatic. The control cam (30) has a section with a general cross-sectional mushroom shape that is contacted by a leg (42) from the automatic sear. The leg has a bend and extends under a center (C) of the control cam (30) in at least two positions of the control cam (30).
Patent CA-2253972-A1 (CA)
Inventor: INABA KIMIO
IPC: G02B6/34
Filed: 1998-11-12
Abstract: Plurality of channel waveguides of an arrayed waveguide diffraction grating are arranged such that all of intervals thereof are not constant between each two adjacent channel waveguides at a first coupling portion for coupling an input slub waveguide and the arrayed waveguide diffraction grating and a second coupling portion for coupling an output slub waveguide and the arrayed waveguide diffraction grating.      Further, the plurality of channel waveguides of the arrayed waveguide diffraction grating are arranged such that all of length differences thereof are not constant between each two adjacent channel waveguides. For example, one of the channel waveguides is deleted, so that a length difference of adjacent channel waveguides is determined to be larger than that of the other two adjacent waveguides. According to this structure, it is possible to provide an optical waveguide multiplexer/demultiplexer in which an insertion loss property becomes flat in all wavelength ranges and the insertion loss characteristics are not fluctuated by the fluctuation of the wavelength.
Patent CA-2254070-A1 (CA)
Title: Method for treating viral infections
Inventor: MALIK ZVI
IPC: A61K31/00
Filed: 1997-05-07
Abstract: The present invention provides a method for treating a viral infection in a subject. The method comprises administering to the subject an amount of 5-aminolevulinic acid to cause virus-infected cells to accumulate protoporphyrin in amounts such that upon application of a sufficient dose of red light, the virus-infected, protoporphyrin-accumulated cells will be destroyed; and applying a sufficient dose of red light to the virus-infected, protoporphyrin-accumulated cells to destroy the virus-infected, protoporphyrin-accumulated cells.
Patent CA-2254275-A1 (CA)
Title: Selective electrochemical process for creating semiconductor nano- and micro-patterns
Inventor: SCHMUKI PATRIK
IPC: H01L21/3063
Filed: 1998-11-20
Abstract: A porous semiconductor is created by electrochemical etching. Selected regions of a semiconductor are first treated to reduce the threshold potential at which pore formation occurs, and then an electrochemical etch is carried out on the semicnoductor at a potential at least equal to the reduced threshold potential for the selected regions and less than the threshold potential for untreated regions. The selective treatment preferably involves implantation with the same ions as the semiconductor, i.e. Si ions for silicon. The treatment results in the formation of highly defined etch patterns or patterns of porous material depending on the process conditions.
Patent CA-2254640-A1 (CA)
Inventor: SUGIKAWA HIROFUMI
IPC: H01M4/80
Filed: 1995-11-27
Abstract: The present invention relates to a porous metallic sheet for use as an electrode substrate of a battery.  The sheet has a porous fibrous structure or a three-dimensional net-shaped structure in which a framework surrounding pores of the porous fibrous structure or those of the three-dimensional net-shaped structure is formed of metallic fibers that are intertwined with each other.  The surface of the metallic fibers at points of intersection are fused to connect the metallic fibers with each other.
Patent CA-2263889-A1 (CA)
Title: P-selectin ligand proteins
Inventor: SAKO DIANNE S
IPC: C07K19/00
Filed: 1997-08-29
Abstract: A novel P-selectin ligand glycoprotein is disclosed, comprising the amino acid sequence set forth in SEQ ID NO 2 or by the amino acid sequence set forth in SEQ ID NO 4. DNA sequences encoding the P-selectin ligand protein are also disclosed, along with vectors, host cells, and methods of making the P-selectin ligand protein.  Pharmaceutical compositions containing the P-selectin ligand protein and methods of treating inflammatory disease states characterized by P-selectin-and E-selectin-mediated intercellular adhesion are also disclosed.