baber/WOPTO huggingface dataset:
Patent CA-2115775-C (CA)
Title: Silica pillared micas
Inventor: JOHNSON JACK W
IPC: B01J21/16
Filed: 1994-02-16
Granted: 1998-12-22
Abstract: Microporous materials of low acidity useful as  sorbents and  catalytic   supports   have  been   produced   by   pillaring tetrasilicic mica with silica polyoxocations generated by hydrolysis of organosilane  precursors. Calcination  at an  intermediate temperature followed by washing of the solid with water is  important in producing highly microporous material.
Patent CA-2118031-C (CA)
Inventor: FREEMAN ROBIN JOHN
IPC: G02B27/00
Filed: 1994-02-02
Granted: 2003-08-05
Abstract: An optical instrument is described in which a diffractive element (25) is located at a focal or image plane (3) of the instrument and the diffractive element (25) is effective to produce an array (6) of a plurality of exit pupils at a viewing position for the instrument and thereby to form an enlarged exit pupil for the instrument.
Patent CA-2118305-C (CA)
Title: Method and device for ensuring the run of the web in the multi-cylinder dryer of a papermachine
Inventor: HAVERINEN TIMO
IPC: D21F5/04
Filed: 1993-02-19
Granted: 1997-09-23
Abstract: The multi-cylinder dryer of a paper-machine includes a first tier of cylinders, where the web (W) supported by a first dryer wire (k1) travels on the cylinders (1) of said tier of cylinders, as well as a second tier of cylinders, where the web (W) supported by a second dryer wire (k2) travels on the cylinders (2) of said tier of cylinders. The first dryer wire (k1) travels from a cylinder (1) of the first tier of cylinders to a first wire guide roll (h1) and delivers the web (W) lying on its side facing said cylinder (1) onto the second dryer wire (k2) and, after having wound onto a second wire guide roll (h2). again takes up, on its surface facing the following cylinder (1), said web (W) from the second dryer wire (k2) traveling through the second tier of cylinders. A section (a - c) extending between the dryer cylinder (1) and the first wire guide roll (h1) is provided on the web-free side of the wire with a nozzle (s2) for blowing air in the traveling direction of the wire (k1) into a gap between the wire and the first wire guide roll (h1) for producing a plenum zone (n+) facilitating in the release of the web (W).
Patent CA-2123012-C (CA)
Title: Security hinge for gaming device
Inventor: STEPHENSON ORLANDO W III
IPC: E05D11/00
Filed: 1994-05-06
Granted: 2002-02-05
Abstract: A hinge arrangement for a gaming device includes a hinge pivotally connecting a cabinet access door to a cabinet. The cabinet access door and the cabinet form a gap therebetween adjacent the hinge when the cabinet access door is closed, but the hinge forms a pocket-shaped barrier around the gap preventing unauthorized access through the gap into the interior of the cabinet. Further, an edge of the cabinet pivots into the pocket and engages a side of the pocket-shaped barrier when the cabinet access door is pivoted 90° to the open position, thus preventing the cabinet access door from pivoting beyond 90° damagingly into an adjacent gaming device.
Patent CA-2127188-C (CA)
Title: Reagents and methods for coupled high temperature reverse transcription and polymerase chain reactions
Inventor: GELFAND DAVID H
IPC: C12Q1/686
Filed: 1994-06-30
Granted: 1999-12-07
Abstract: Methods are provided for the replication and amplification of RNA sequences by thermoactive DNA polymerases. The reverse transcription reaction is performed in an appropriate buffer comprising a metal buffer which buffers the divalent cation concentration and which buffer preferably buffers both the pH and the divalent cation concentration. Said divalent cation is preferably Mn2+. In a preferred embodiment, high temperature reverse transcription is coupled to nucleic acid amplification in a one tube, one enzyme procedure using a thermostable DNA polymerase. Methods for eliminating carry over contamination of amplifications due to prior reverse transcription reactions are also provided.  Reagents and kits particularly suited for the methods of the present invention are provided.
Patent CA-2131568-C (CA)
Inventor: HERNANDEZ AUGUSTO D
IPC: H01F27/02
Filed: 1994-09-07
Granted: 2005-06-07
Abstract: A tank for an oil-filled, pad-mounted electrical transformer comprises six sides. The tank includes a front plate and a side panel unit connected to the front plate. The side panel unit is formed of a bent sheet of metal. Two of the side panels farm obtuse included angles with adjoining side panels. A floor plate of the tank is sized to fit inside of the side panel unit so as to be capable of being secured at any desired elevation.      The floor plate includes reinforcing channels.
Patent CA-2138903-C (CA)
Inventor: PFLEGER WOLFGANG
IPC: B29C48/12
Filed: 1994-12-22
Granted: 1998-04-28
Abstract: A coolant conduit which is an elongate tubular article for an apparatus requiring cooling by a cooling agent, such as an engine, for example, an internal combustion engine, includes a plurality of layers which are provided by sequential coextrusion thereof and which are adjoined thereby, each layer of the plurality being comprised of a polymeric material which is thermoplastically processable.          The plurality of layers may include an inner layer which is composed of a polymeric material which is substantially inert to cooling agent and which is substantially non-swelling, and an outer layer which is composed of at least one polyamide and which is pressure resistant.  The coolant conduit may include a plurality of longitudinal sections, and at least one layer of the plurality of layers may then be composed of a polymeric material which differs between longitudinal sections thereof as is made possible by sequential coextrusion thereof.
Patent CA-2142583-C (CA)
Title: Base station antenna arrangement
Inventor: BARTON PAUL
IPC: H01Q3/24
Filed: 1995-02-15
Granted: 2005-02-01
Abstract: An antenna arrangement (10) for a cellular radio base station is provided with a plurality of r.f. transceivers, including one or more antenna arrays (12) each comprising a plurality of sub-arrays (20) each selectively operable to form a beam in azimuth. Each sub-array is provided with elevation beamforming means (24) and individual transmit and receive amplifiers (30,32). Each sub-array beamformer is coupled to at least one r.f. transmitter feed (26)nd each r.f. receiver feed is coupled to at least two sub-array beamformers, the sub-arrays of each antenna array together forming a multiplicity of separate substantially coincident beams in azimuth. A method of operation is also disclosed.
Patent CA-2149428-C (CA)
Inventor: ALLEN JUDITH L
IPC: C10M175/00
Filed: 1994-01-21
Granted: 1999-01-12
Abstract: Créés pour un système à plusieurs passages servant à la purification de l'huile et d'autre liquides, voici une méthode et un appareil améliorés pour mélanger de l'air à un liquide contaminé en vue d'une séparation après un changement de phase de liquide à gaz. Le liquide contaminé est tiré d'un réservoir (10) au moyen d'une pompe (14), est filtré (18), et chauffé (20), puis de l'air atmosphérique est incorporé à celui-ci, en aval du corps chauffant, au moyen d'une buse d'injection (22,50), ce qui favorise le changement de phase de liquide à vapeur. Le mélange de liquide-contaminant, qui contient maintenant de l'air entraîné, traverse immédiatement une seconde buse (22,60); la compressibilité de l'air dans le mélange, suivi de la dilatation de l'air comprimé au moment où le mélange sort de la seconde buse, entraîne un contact intime entre l'air et le contaminant, facilitant ainsi le stripage du contaminant. Le mélange d'air-liquide- contaminant est ensuite acheminé vers un bassin de séparation à niveau régulé (24), où la vapeur d'eau, les contaminants et les condensats se dégagent dans l'espace au-dessus des éléments regroupés. De l'eau purifiée est tirée du bassin au moyen d'une deuxième pompe (14) et remise dans le réservoir.
Patent CA-2150577-C (CA)
Title: Enhanced gas separation for bubble column draft tubes
Inventor: CHANG MIN
IPC: C10G2/00
Filed: 1993-12-15
Granted: 2002-09-10
Abstract: Slurry bubble column (1) equipped with downcomers which have high efficiency gas disengagement structure fitted on top of the slurry liquid reaction mixture comprising an inverted channel (8) having a gas vent (12) extending out of the apex (8c) of the inverted channel (8) and a liquid by-pass pipe (13) extending from the side of the inverted channel at a point below the apex (8c) to under the liquid level (9) and emptying into the downcomer. The inverted channel is fitted to the top of the downcomer and the bottom edge (8B) of which inverted channel is in contact with the surface of the slurry mixture in the slurry bubble column reaction zone. Improved catalyst distributing and circulation, mass and heat transfer results from catalyst in gas-lean slurry flowing through the liquid by-pass tubes (13) in the inverted channel and sowing into and down the downcomer to the bottom of the bubble column reactor. Hydrogen or any rejuvenating gas can be introduced into the bottom of the downcomer to restore catalyst activity as the catalyst moves down the downcomer.
Patent CA-2153068-C (CA)
Title: Enhancer sequence for modulating expression in epithelial cells
Inventor: KUFE DONALD
IPC: A61K48/00
Filed: 1993-12-08
Granted: 2007-05-01
Abstract: Isolated DNA encompassing the DF3 enhancer as well as a sequence encoding a heterologous polypeptide provides epithelial tissue-selective gene expression of the heterologous polypeptide, useful in methods of therapy.
Patent CA-2156802-C (CA)
Title: Granular absorbent material for pet animal
Inventor: OCHI KENGO
IPC: A01K1/015
Filed: 1995-08-23
Granted: 1999-02-16
Abstract: Grains of granular absorbent material for pet animals comprising a core formed from absorbent material, a liquid-impermeable partition sheet parting the core into upper  and  lower  halves  and  a  liquid-permeable  sheet covering the core.
Patent CA-2160676-C (CA)
Title: Well plugging apparatus and method
Inventor: MATTHEWS BRUCE
IPC: E21B29/08
Filed: 1994-04-26
Granted: 2004-02-17
Abstract: An apparatus for plugging a burning or gushing well comprises a hollow tubular plug body (20) sized for insertion into a well casing (112). Provided on the plug body are a retainer module (54) for retaining the plug within the well casing, a sealing sleeve (46) provided for forming a seal between the plug body and the well casing; and a valve assembly (50) for selectively closing a hollow internal passageway of the tubular plug body. The plug body is loaded on a gantry assembly (21), which in turn is carried by a shielded vehicle (24). At the base of the gantry assembly are provided an alignment assembly (37) for aid in approach to the well casing and a cutter assembly (40) for sawing off inordinately protruding casings. In one embodiment, a protective break-away shell (118) circumferentially surrounds at least a portion of the plug body.
Patent CA-2161957-C (CA)
Inventor: KENDALL KEVIN
IPC: H01M8/24
Filed: 1994-03-17
Granted: 2004-02-24
Abstract: Solid oxide fuel cell structures which are .capable of relatively rapid temperature changes without cracking and which are simple to seal. In one arrangement a tubular SOFC structure comprises a self-supporting extruded tube of zirconium oxide with inner and outer electrodes. The tube may have an outside diameter of from, for example 1 to 5mm and a wall thickness of from, for example, 50 to 200 microns.      In an alternative arrangement, a simple gas type planar interconnect for a planar SOFC is provided in the form of a sheet of ceramic material having electrically conducting bodies of ceramic material embedded in it so as to provide an electrical path through the sheet. To avoid edge sealing problems, fuel gas and air may be delivered to a stacked SOFC structure through tubes extending between adjacent cell sub-assemblies such that the gas is delivered to a central portion of each anode of the cell stack and flows outwards towards the edges of the stack.
Patent CA-2163074-C (CA)
Inventor: BAZIUK MORRIS
IPC: E01H1/08
Filed: 1995-11-16
Granted: 2005-02-08
Abstract: Camion vidangeur incluant un réservoir de stockage monté sur le châssis de camion et une pompe d'aspiration pour attirer l'air dans le réservoir de stockage de sorte qu'un flexible s'étendant de la matière à creuser vers une admission du réservoir de stockage transporte la matière dans le réservoir pour l'extraire de l'air avant le passage de l'air dans la pompe d'aspiration. Un système de filtre est prévu dans le circuit de conduites entre le réservoir de stockage et la pompe d'aspiration pour l'extraction de particules et d'humidité de l'air. Le système de filtre inclut une chambre attachée le long d'un côté du réservoir de stockage cylindrique, cette chambre ayant une pluralité de rideaux attachés à une paroi supérieure de la chambre et suspendus verticalement en travers de la chambre. Chaque rideau est formé d'une pluralité de tronçons de chaîne suspendus par un maillon supérieur de la chaîne à un support au niveau de la paroi supérieure de la chambre. Les tronçons sont agencés côte à côte pour former un rideau complet sur toute la largeur et toute la hauteur de la chambre. Les tronçons de chaîne n'étant fixés qu'à la paroi supérieure, ils sont libres de se balancer lorsque le véhicule est transporté d'un endroit à un autre et de s'éloigner de la surface inférieure de la chambre lorsque la chambre est inclinée avec le réservoir de stockage pour l'évacuation de matière. L'action de balancement assure un effet autonettoyant sur les filtres de chaîne, la matière tombant sur la paroi inférieure, et lorsque les chaînes s'éloignent de la paroi inférieure avec l'action d'inclinaison, la matière est libre de glisser vers une ouverture d'évacuation à l'arrière de la chambre.
Patent CA-2164085-C (CA)
Inventor: GARDINER WALTER A
IPC: B26B11/00
Filed: 1995-11-29
Granted: 1999-02-09
Abstract: A support clip or sheath is detachably mounted on a knife. The clip or sheath has a locking portion insertable into a cavity of the knife, and a release button is operable for releasing the clip or sheath therefrom. A plurality of mounting apertures on the clip or sheath is attachable to various objects, such as a keyring or a strap. The knife and/or the objects are separately handled upon detachment of the clip or sheath. The knife is suspendable by the clip or sheath from a carrier such as a belt or strap.
Patent CA-2170275-C (CA)
Inventor: MARTIN JEAN-RAYMOND
IPC: A61B17/88
Filed: 1994-08-23
Granted: 2006-01-10
Abstract: L'invention concerte un matériel ancillaire permettant d'exercer et de maintenir des contraintes sur une portion de la colonne vertébrale en vue de corriger et/ou de maintenir la forme et/ou les efforts exercés sur les vertèbres avant et pendant la pose d'une instrumentation rachidienne implantée, caractérisé en ce qu'il comprend au moins deux extrémités d'action (6a, 6b, 6c,... et/ou 6a', 6b', 6c',...) destinées à coopérer, de manière uni-ou de préférence bilatérale, respectivement avec au moins deux vertèbres distinctes, en s'appuyant par leurs branches correctrices correspondantes (4a, 4b, 4c,... et/ou 4a', 4b', 4c',...) et par leur base (5) amovible, sur des rails longitudinaux et parallèles (3) d'un support (1) en forme de cadre, et comprenant également des moyens (13, 17, 43, 65) pour modifier et maintenir les positions relatives des extrémités d'action (6a, 6b, 6c,... et/ou 6a', 6b', 6c',...) selon chacune, isolément ou en association, des trois directions orthogonales.
Patent CA-2170423-C (CA)
Inventor: MURAKAWA TOSHIHIRO
IPC: B23K11/31
Filed: 1996-02-27
Granted: 2005-08-16
Abstract: An arm main body of a welding gun is formed of an aluminum alloy. An anodic oxide coating is formed on an entire surface of the arm main body. The arm main body is then machined to remove the anodic oxide coating formed on a power feeing terminal portion and an electrode tip connecting portion which are provided in the arm main body. The anodic oxide coating may be subjected to a sealing treatment with a dispersion liquid in which a magnetic material is mixed in dispersion. Alternatively, the arm main body formed of an aluminum alloy may be subjected to an anodic oxide coating treatment with a treatment liquid in which a magnetic material is mixed in dispersion.
Patent CA-2173988-C (CA)
Inventor: DUH BEN
IPC: B29K67/00
Filed: 1994-10-07
Granted: 2005-03-22
Abstract: Open-ended, substantially tubular polyester prepolymer pellets provide great ly improved solid state polymerisation rates by improvin g reaction by-product diffusion characteristics.
Patent CA-2178874-C (CA)
Title: Chambre de combustion comportant une paroi annulaire multiperforee
Inventor: ANSART DENIS ROGER HENRI
IPC: F23R3/02
Filed: 1996-06-12
Granted: 2008-03-04
Abstract: L'invention concerne une chambre de combustion pour turbomachine, du type comportant au moins une paroi annulaire (2) délimitant au moins partiellement ladite chambre, ladite paroi présentant une multiperforation constituée d'une pluralité d'orifices traversant, afin d'assurer le refroidissement de ladite paroi. Selon l'invention, les orifices sont constitués par des fentes (3) de section quasi-rectangulaire, de longueur 1 et d'épaisseur e. Les fentes (3) s'étendent circonféren- tiellement dans une direction sensiblement perpendiculaire à la direction d'écoulement local des gaz.
Patent CA-2188492-C (CA)
Title: An infusion catheter
Inventor: MATSUDA TAKEHISA
IPC: A61F2/958
Filed: 1996-10-22
Granted: 2007-07-10
Abstract: An infusion catheter having a catheter shaft with a distal end, an inflatable and contractible balloon provided adjacent the distal end but spaced therefrom, a blood passage with two openings for passing blood through the balloon, and first and second lumens. The first lumen communicating with the balloon to inflate and contract the balloon, and the second lumen including a medicine discharge port located between the balloon and one opening of the blood passage to supply medicine to a lesion part of a blood vessel.
Patent CA-2195836-C (CA)
Inventor: NAGATA KYOICHI
IPC: H01L27/092
Filed: 1997-01-23
Granted: 2001-03-20
Abstract: In a memory in which a memory cell array 200 and a subword drive circuit SWD are alternately arranged in a row direction in addition to an SA array 170 and a cross portion (SWC) alternately arranged, there are arranged an interface circuit 100 between a global I/0 line GIOT/B and a local I/O line LIOT/B in a first cross portion SWD1, nMOSs Q2, Q4, and Q5 of an SA control circuit in a second cross portion SWC2, and pMOSs Q1 and Q3 of the SA control circuit in a third cross portion SWC3.
Patent CA-2202504-C (CA)
Title: Chimeric conformational epitope peptides
Inventor: COOPER JUAN ANTON
IPC: C07K14/705
Filed: 1995-10-16
Granted: 2008-12-09
Abstract: The present invention relates generally to chimeric peptides comprising one or more protective epitopes in a conformation enabling immunological interactivity and to vaccine compositions comprising same. The present invention is particularly directed to a chimeric peptide capable of inducing protecting antibodies against Group A  streptococci.
Patent CA-2214581-C (CA)
Title: Flow sensitive, acceleration sensitive shock absorber
Inventor: SHIRLEY DAVID A
IPC: F16F9/32
Filed: 1996-03-01
Granted: 2001-05-15
Abstract: An acceleration sensitive shock absorber has a tubular housing and a piston assembly in the housing (11) dividing the housing into an upper chamber (13) and a lower chamber (12). The piston is connected to the wheel of a vehicle and the housing is connected to the chassis of the vehicle. Fluid can pass between the upper and lower chamber to the upper chamber upon downward acceleration of the wheel. A movable inertia valve (46) in the piston assembly opens the first port when acceleration of the wheel of the vehicle is greater than a predetermined magnitude for increasing flow between the chambers. In addition, there is a first restricted flow path (48) downstream from the first port for creating hydraulic pressure which biases the inertia valve in an open position in response to fluid flow between the chambers. There is a second port (43) or passage for providing fluid flow from the upper chamber to the lower chamber. A second restricted flow path upstream from the second which provides hydraulic pressure to decrease the response time during compression.
Patent CA-2214778-C (CA)
Title: Process for the production of polymeric microparticles, microparticles that are produced according to this process as well as their use in medical diagnosis
Inventor: ROSSLING GEORG
IPC: A61K9/00
Filed: 1996-03-14
Granted: 2009-01-06
Abstract: The invention relates to a process for the production of gaseous microparticles for ultrasonic diagnosis, whose wall material is built up from polyesters of .alpha.-, .beta.- or .gamma.- hydroxycarboxylic acids, particles that are produced according to this process, as well as their use in medical diagnosis.
Patent CA-2216025-C (CA)
Inventor: PEERY ROBERT H JR
IPC: E01F9/011
Filed: 1997-09-22
Granted: 2003-07-22
Abstract: A  method  and  apparatus  for  assembling  a selected  street  pole  to  a  standard  sized  base  is disclosed.  The method includes the step of selecting a street   pole   of   a   predetermined   configuration. Encircling portions, preferably rings consisting of two semi-circular portions, each having a nestable section with each other and a complementary section with the selected street pole are then provided.  The encircling portions are nested together on the standard sized base to connect  the standard sized base to the selected street pole thereby continuing the appearance finish of the standard sized base while preventing unauthorized access to an interior of the standard sized base.  The apparatus includes the encircling portions to connect the standard sized base to the selected street pole.
Patent CA-2223037-C (CA)
Inventor: REISSER WOLFGANG
IPC: C09D5/38
Filed: 1996-05-17
Granted: 2007-01-16
Abstract: The invention concerns oxidised aluminium or aluminium alloy pigments having a content of metallic aluminium of not more than 90 % by weight with respect to the total weight, wherein the pigments are coloured, flake-like, shiny and non-agglomerated, a process for the production thereof and use thereof as special-effect pigments and as base pigments for further colouring with organic or inorganic colour pigments.
Patent CA-2228942-C (CA)
Title: Liquid applicator
Inventor: DEHAVILLAND LESLIE M
IPC: A61F13/40
Filed: 1995-12-01
Granted: 2000-11-21
Abstract: A liquid applicator (10) for applying a desired liquid to a surface includes a closed vial (14) formed of a fractural material containing the desired liquid, a body having a pocket (12) with an open side and a shape adapted to receive the vial ( 14), a porous element (16) sealed to the body, and closing off the open side of the p ocket (12) so that liquid flows through the element (16) when the vial (14) is fractur ed. The body has a flange protruding from the pocket (12) along the open side thereo f and a wing-like gripping member (24, 26) projects from the flange. The gripping member (24, 26) is spaced from the pocket (12) and supported for pivoting moveme nt relative to the pocket (12) by the flange. The body also has structure (36, 38) for fracturing the vial (14), the structure (36, 38) being interposed between the po cket (12) and gripping member (24, 26). Upon pivoting of the gripping member (24, 26), the structure (36, 38) flexes the pocket (12) inwardly to exert a fracturin g force against the vial (14) when the member (24, 26) is pivoted towards the pocket (12 ).