baber/WOPTO huggingface dataset:
Patent CA-2242174-A1 (CA)
Inventor: COOPER PAUL V
IPC: F04D7/06
Filed: 1998-07-03
Abstract: A system and device for pumping molten metal that reduces bearing member fractures comprises a pump having a pump chamber including a first bearing surface, a rotor having a second bearing surface that aligns with the first bearing surface. The second bearing surface is formed by a plurality of spaced bearing pins attached to the rotor. Each bearing pin has an outer surface preferably substantially flush with the outer perimeter of the rotor. The pins are comprised of a heat resistent material that is harder than the material comprising the rotor.
Patent CA-2245552-A1 (CA)
Title: Profile d'etancon de chaine
Inventor: KANZLER HELMUT
IPC: B62D55/27
Filed: 1996-12-06
Abstract: L'invention concerne un profilé d'étançon de chaîne (1) pour chenilles de véhicules chenillés, notamment pour l'entretien des pistes. Ce profilé comporte un corps d'étançon (2) qui présente en section une base (3) sensiblement en forme de U avec deux branches (4, 5) reliées par au moins une partie jointive (7). Ces branches (4, 5) s'étendent pour se réunir en une pièce finale (8) du corps d'étançon (2). Pour réduire le poids du profilé d'étançon (1) par unité de longueur tout en conservant une haute capacité de charge et des couples de résistance élevés, et donc pour utiliser moins de matière, une traverse de support (9, 10) est disposée entre chaque branche (4, 5) et la partie jointive (7) de manière à former un treillis.
Patent CA-2245918-A1 (CA)
Title: Method for fluidizing tars
Inventor: LANGLOIS BRUNO
IPC: C09K23/12
Filed: 1997-02-20
Abstract: Process for the preparation of an aqueous tar suspoemulsion by mixing a mixture comprising: (a) a viscous tar composition formed from a tar, from inorganic solids and, optionally, from water; (b) water (W); (c) a surface-active agent (SA) exhibiting an HLB of at least 10 and, optionally, (d) a thickening water-soluble polymer (TWP) with a molecular mass of greater than 10,000, the relative amounts of constituents (W), (SA) and, optionally, (TWP) being such that the viscosity of the (W) + (SA) + optional (TWP) mixture is preferably equal to or greater than the viscosity of the said tar, and then optional dilution of the mixture obtained with water or with an aqueous acidic solution. Application to the residues, containing sulphuric acid, resulting from the synthesis of white oils from petroleum fractions. The present invention further relates to a method for fluidizing acidic tars/sludges comprising contacting the tar/sludge with sulphuric acid and a surfactant.  Optionally, a carrier for the surfactant's incorporation into the tar/sludge can be utilized. This provides an effective process for cleaning sulphuric acid tars/sludges from containers/vessels such as transportation containers, pipes and storage tanks. Preferably, the process comprises the additional step of regeneration of sulphuric acid from the fluidized tar/sludge.
Patent CA-2248423-A1 (CA)
Inventor: SPITLER BRIAN L
IPC: F21V15/00
Filed: 1998-09-25
Abstract: Élément de fixation rigide servant à fixer un transformateur à un appareil d'éclairage électrique. Le dispositif de fixation présente deux extrémités conçues pour recevoir des attaches servant à monter l'élément de fixation sur l'appareil d'éclairage. L'élément de fixation rigide résiste au déplacement et à la flexion, avant et pendant l'installation du transformateur, ce qui permet de fixer ce dernier facilement et rapidement à l'appareil d'éclairage.
Patent CA-2248555-A1 (CA)
Title: Immortalized hematopoietic cell lines, cell system thereof with stromal cells, in vitro, ex vivo and in vivo uses, and in vitro generation of dendritic cells and macrophages
Inventor: GOPAL T VENKAT
IPC: G01N33/50
Filed: 1997-03-07
Abstract: Extented life hematopoietic cell lines include stromal cell lines useful for the in vitro maintenance of undifferentiated pluripotent hematopoietic stem cells. Undifferentiated and differentiated immortalized stem cells are suitable for bone marrow transplantation, gene therapy and cell therapy applications, and as an in vitro model system for drug discovery and toxicological testing.
Patent CA-2249121-A1 (CA)
Inventor: ELLISON EDWARD J
IPC: F24J2/04
Filed: 1998-10-02
Abstract: The pool cover is made of multi-layer light weight construction having a transparent top layer to permit sunlight to pass through an opaque bottom layer for absorbing sunlight passing through the transparent layer. In addition, a plurality of pockets are formed in the opaque layer having air encapsulated therein. When in use, the opaque layer becomes heated by sunlight thereby transferring heat by contact to the body of the water in the pool. The heated trapped air also serves to conduct heat to the body of water while also acting as a thermal insulation barrier during non-daylight hours.
Patent CA-2249360-A1 (CA)
Inventor: HEDLUND JONAS
IPC: B01D69/10
Filed: 1997-03-13
Abstract: The invention is comprised of a procedure for applying molecular sieve films to the surface of different substrates. This procedure is characterized in that microcrystals of the molecular sieves in question bind to the substrate surface in a first step as a monolayer, and are then, in a second step, allowed to grow into a thin, continuous and dense film. Molecular sieve films are of interest in application areas such as preparing membranes, catalysts, sensor devices and polymer reinforcing fillers.
Patent CA-2251827-A1 (CA)
Title: Continuous production of cross-linked resin relief images for printing plates
Inventor: WALSH ROBERT M
IPC: G03F7/20
Filed: 1998-02-23
Abstract: Printing plates are formed from a layer of photopolymerizable resin (8) by a process and assembly which involve moving a resin layer (10) past a variable intensity light source (12) so as to sequentially and selectively cross-link the resin layer (10). The variable intensity light source (12) can be provided by means of a bank of lights (34) that can be controlled by computer-controlled switches so that individual lights in the light bank can be turned "off" and "on", as necessary, to provide a pre-selected cross-linked pattern in the resin layer (10) which will produce the desired printing plates. The rate of movement of the resin layer (10) past the light bank can be controlled by the computer so that individual slices of the resin layer (10) will be exposed to the light bank for the appropriate periods of time needed to produce the desired pattern.
Patent CA-2253144-A1 (CA)
Title: Cleaning apparatus for magnetic filter and cleaning method thereof
Inventor: KOBAYASHI MIKIO
IPC: C25D21/06
Filed: 1998-11-06
Abstract: In equipment for collecting metal powder mixed in with treatment liquid by using magnetic filters 3 which are positioned within a circular passage 1 for a cleaning liquid, for the purpose of avoiding the drawback in which the meal powder accumulated on the magnetic filter peels out as a mass when exceeding a limit, a detection portion 4 of an ultrasonic sensor 15 is provided for detecting the amount of metal powder attached or adhering onto metal powder collecting cylinders 12. Further, electro-magnetic valves V1 through V5 of the circular passage l, a cleaning circuit 5, and a discharging circuit 6 are controlled by a detection signal of a detection portion, in opening or closing thereof, thereby cleaning the metal powder attached or adhered onto the magnetic filter 3.
Patent CA-2253396-A1 (CA)
Title: Immunochromatographic assay device
Inventor: KOBAYASHI EIJI
IPC: G01N30/92
Filed: 1997-04-28
Abstract: A chromatography immunoassay device is described which can be used more easily, is protected from moisture and/or oxygen more effectively and can be produced at a lower cost than known chromatography immunoassay devices. The chromatography immunoassay device of the present invention is one in which one or more chromatography strips are stuck on a substrate made of a plate, each of the chromatography strips is sealed by closely adhering a substrate portion surrounding each chromatography strip to a seal film located on the chromatography strip, and the seal film and/or substrate possesses a film containing a dehumidifying agent and/or a film containing an oxygen absorbing agent.
Patent CA-2254286-A1 (CA)
Inventor: SCHMIDT HARALD
IPC: B29C45/28
Filed: 1998-11-17
Abstract: An apparatus for controlling plastic melt flow in an injection molding machine comprising: a thermally conductive housing having a fluid flow channel sealably disposed in the housing, the channel having an input end sealably connected to a source of flow of a plastic melt material and an output end for controllably delivering the flow of plastic material to an input aperture of a mold cavity; an elongated pin disposed within at least a portion of the channel for controlling output of the flow of plastic melt through the output end of the channel, the pin having a head end and a pin end and a length extending between the head end and the pin end; the pin being slidably mounted along its length through an aperture in the housing such that the pin is slidably movable through the aperture between at least one unrestricted flow position and at least one restricted flow position; the head end of the pin extending outside the housing and being readily connectable to and disconnectable from a pin reciprocating mechanism, the pin reciprocating mechanism being controllably operable to move the pin between an unrestricted flow position and a restricted flow position.
Patent CA-2254472-A1 (CA)
Title: Range plug
Inventor: VARATTA THOMAS ROBERT
IPC: H01R24/30
Filed: 1998-11-24
Abstract: Range plug blades with integral conductor-accepting cups bisected by planes parallel with the blades are inserted into plug die slots, following which conductors are crimped into the cups, after which plastic is introduced into the die and hardened into a range plug holding the blades, cups, and conductors in predetermined positions.
Patent CA-2255136-A1 (CA)
Title: Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method
Inventor: MIN KYUNG-ZOON
IPC: C23C2/28
Filed: 1998-12-04
Abstract: An alloying system for a galvanized steel sheet, the alloying system using an induction heating coil, wherein an impedance matching apparatus is provided between the induction heating coil and a high frequency power source.      The impedance matching apparatus comprises a matching transformer having a plurality of intermediate contact points for arbitrarily selecting a turn ratio, and a switching device for alternative changeover of the intermediate contact point, whereby even when the load impedance of the steel sheet varies, maximum power source output is obtained, such that an appropriate heating temperature necessary for forming an alloy layer of the steel sheet can be supplied.
Patent CA-2256580-A1 (CA)
Inventor: MILES ALDEN R
IPC: B65C9/18
Filed: 1997-05-21
Abstract: A method and apparatus for sequentially and precisely registering cut sheets for application onto advertising signatures at high speeds employs an initial roll of sheeting material. The sheeting material is unwound to track a process path, where eyemarks on the sheeting material are detected for use in registering the sheeting material to be cut into discrete sheets and to be aligned with a moving advertising signature for affixation thereto. The sheeting material has a repositionable pressure sensitive adhesive along one side edge thereof for use in adhering the cut sheet to the advertising signature. In one embodiment, the sheeting material is generally opaque adjacent one side edge and is sufficiently transparent adjacent its other side edge so that when a sheet cut from the sheeting material is adhered to an advertising signature, images on the advertising signature are visible through at least a portion of the sheet.
Patent CA-2256717-A1 (CA)
Inventor: TOBAR MICHAEL EDMUND
IPC: G01R27/28
Filed: 1997-05-30
Abstract: An interferometric signal processing apparatus (10) producing an output signal from a first input signal (34) and a second input signal (34), said input signals (34) having substantially equal carrier frequencies, comprising: a bridge (12) having a first arm (26) and a second arm (28), each arm having a first end (30) and a second end (32), the first and second input signals (34) being input to the first end (30) of the first and second arms (26, 28), respectively; a device-under-test (36) provided the first arm (26); a carrier suppression means (14) connected to the second ends (32) of the first and second arms (26, 28) to produce a carrier-suppressed signal at its output (A); an amplifier (16) arranged to amplify said carrier-suppressed signal; and a mixing means (22, 24) responsive to the amplified carrier-suppressed signal and a carrier-dominated signal to produce the output signal; wherein the differential group delay between: the first end (30) of the first arm (26) and the output (A) of the carrier suppression means (14); and the first end (30) of the second arm (28) and the output (A) of the carrier suppression means (14) is less than or equal to 1000/fo seconds, where fo is the time-averaged mean value of the carrier frequencies of the input signals (34).
Patent CA-2258026-A1 (CA)
Inventor: LANDINGHAM RICHARD L
IPC: A61B18/12
Filed: 1997-06-11
Abstract: L'invention concerne un instrument électrochirurgical comprenant une surface électrode active (5), constituée d'une céramique conductrice ou d'un cermet. La céramique conductrice peut être une céramique à base de carbure, de borure ou de nitrure, ou encore un mélange de ces céramiques. Le cermet peut comprendre une céramique et un métal choisi entre le cobalt, le nickel, le fer, le molybdène, le titane, le zircon et l'aluminium. La surface électrode active en céramique conductrice ou en cermet peut être soutenue par une âme. Dans certains modes de réalisation, l'âme est en métal, la surface électrode active formant un revêtement sur une surface de l'âme métallique. Dans d'autres cas, l'âme est constituée d'une isolant électrique. Des instruments selon l'invention peuvent être des lames de Bovie, des pinces bipolaires, des effecteurs de cautérisation pour la chirurgie endoscopiques, des instruments de biopsie bipolaires, et des lames à spatules munies de la surface électrode active selon l'invention.
Patent CA-2258618-A1 (CA)
Title: Echo suppressor and non-linear processor of echo canceller
Inventor: KIRLA OLLI
IPC: H04B3/23
Filed: 1997-06-18
Abstract: The invention relates to an acoustic echo suppressor and a non-linear processor for an echo canceller in a 4-wire data transmission network. An echo canceller is typically controlled by comparing the power levels (PWR IN, PS IN) of the near-end and far-end signals (R IN, S IN). The transfer function of an acoustic echo path is usually very non-uniform. According to the invention, the spectrum of the far-end signal (R IN) is treated, before the signal power level is calculated, with a weighted filter (21), which models the effect of the transfer function of acoustic echo. As a result, the double talk dynamics is improved, since high-energy vowels of far-end speech, which normally cause low-energy vowels of near-end speech to be clipped in an echo suppressor, will be attenuated.
Patent CA-2259829-A1 (CA)
Inventor: WILS JORIS JOHANNES MARIA
IPC: H04L12/46
Filed: 1999-01-21
Abstract: A packet based high speed mesh forms a trunk cluster. The trunk cluster is constructed with a set of loosely coupled switches, a configuration protocol, trunked network interfaces, and optionally a reachablilty protocol. The trunk cluster provides a Logical LAN service. Each switch in the trunk cluster provides a single "shared LAN" by interconnecting two or more links. The edge devices attached to the links run a trunk configuration protocol. These attached edge devices view the trunked ports as if trunked ports are connected to a shared LAN with multiple other attached devices.
Patent CA-2260755-A1 (CA)
Title: Co-milled mixtures comprising polyol and method of making
Inventor: ALEXANDER STEVEN ROBERT
IPC: C07H13/06
Filed: 1997-07-16
Abstract: A process for making a mixture of polyol and at least one additional reaction component for the manufacture of polyol fatty acid polyesters comprises co-milling the polyol and the additional reaction component. The co-milling reduces the particulate size of the polyol and the additional reaction component while creating particles which include an admixture of polyol and the additional reaction component. The co-milled mixture of polyol and additional reaction component can be used, for example, as a feed stream for the transesterification reaction of the polyol to produce a polyol fatty acid polyester.
Patent CA-2261556-A1 (CA)
Title: Fault-tolerant, highly-scalable cell switching architecture
Inventor: ROE JEFF S
IPC: H04L12/56
Filed: 1999-02-10
Abstract: Generally speaking, the cell switching architecture of the present invention offers a powerful, simple, and in many ways elegant solution to the problem of providing cost-effective, high-bandwidth, fault-tolerant cell switching. The architecture is based on a network of switching elements connected in a hypercube topology to form a switch fabric. The generalized hypercube is D dimensional, where D ~ 3 when all radices in the radix set are 2 and D ~ 2 when at least one of the radices is greater than 2. A fully-populated switch is fully symmetric:  each switching element has the same number and kind of connections to both its neighbors and to the outside world as every other switching element. In an exemplary embodiment, each switching element is connected to one data source and one data sink, e.g., a Utopia bus or other broadband connection. In the same exemplary embodiment, links between switching elements are bidirectional and synchronous, operating in accordance with a Cell Exchange Cycle (CEC). Buffer space for a limited number N of cells is provided within each switching element. Multipath routing allows a switching element to forward a cell along any of multiple paths. Retrograde and lateral motion, i.e., motion other than in a forward direction toward the cell's destination, is also allowed to relieve temporary local congestion.
Patent CA-2262693-A1 (CA)
Title: Timbres adhesifs autocollant pour administrer par voie transdermique des sels d'agents pharmaceutiques
Inventor: FIKSTAD DAVID
IPC: A61L15/58
Filed: 1997-08-29
Abstract: Cette invention se rapporte à un procédé permettant d'administrer par voie transdermique ou transmuqueuse un médicament se présentant sous forme de sel hydrophile, au moyen d'un timbre adhésif hydrophobe à structure autocollante à base d'eau contenant un agent d'accentuation de la perméabilité. Cette invention se rapporte également à un timbre (10) comportant un adhésif hydrophobe à structure autocollante à base d'eau (14), un médicament se présentant sous forme de sel hydrophile et éventuellement un agent d'accentuation de la perméabilité, qui est destiné à l'administration par voie transdermique ou transmuqueuse d'un médicament se présentant sous forme de sel hydrophile.
Patent CA-2264104-A1 (CA)
Inventor: TALLEY JOHN J
IPC: C07D/
Filed: 1997-08-12
Abstract: A stable crystalline form of 4-¢5-methyl-3-phenylisoxazol-4-yl!benzenesulfonamide is described. This crystal structure, designated Form B, is more stable, has favorable handling properties and is characterized by its melting point, x-ray and other physical characterizations.
Patent CA-2265024-A1 (CA)
Title: Vibration damper
Inventor: CHUNG LAP-LAI
IPC: E04H9/02
Filed: 1999-03-08
Abstract: A disturbance-proof device connected between two vertically spaced beams for absorbing shocks upon a disturbance, includes a flat top plate, a flat bottom plate, and a plurality of flat supporting plate connected in parallel between the flat top plate and the flat bottom plate, each flat supporting plate having a substantially V-shaped profile with its width gradually reducing from the flat top plate toward the flat bottom plate, a flat top flange welded to the flat top plate, and a round rod at its bottom side inserted in between two parallel locating blocks raised from the bottom plate.
Patent CA-2267112-A1 (CA)
Inventor: BYLSMA PHILIP J
IPC: F02D41/10
Filed: 1998-07-28
Abstract: La présente invention concerne un système d'injection de carburant dans un moteur à combustion interne comprenant un circuit de commande (51) d'injection de carburant en mode stratifié qui fonctionne dans un premier régime moteur et un circuit de commande (63) d'injection de carburant en mode homogène qui fonctionne dans un second régime moteur supérieur au premier régime. Une vitesse de changement de mode est établie pour un moteur particulier par un circuit de changement de mode (77). Lorsque la vitesse (ou la charge) arrive au point de remise à niveau depuis le mode stratifié, le point de remise à niveau du régime moteur passe du point de remise à niveau standard à un point provisoire défini pendant un ou deux tours, après quoi le point de remise à niveau revient au point de remise à niveau standard.
Patent CA-2269689-A1 (CA)
Inventor: MAYER BRUNO FRANZ P
IPC: A61M39/26
Filed: 1997-09-25
Abstract: A fixed flow rate needleless injection site (10) comprises a housing (16) which defines an interior chamber (26), and a central opening (28) which communicates with the interior chamber. The housing further comprises an elongate, proximally extending dilator projection portion (40) which defines a fluid passage. Disposed within the central opening and the interior chamber is a reseal member (58) which has an elastically openable and closable aperture disposed therein. The reseal member normally resides in a first position within the housing wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position, wherein the aperture assumes an open configuration and communicates with the fluid passage. The cessation of the application of distally directed pressure to the reseal member will cause it to resiliently return to the first position, wherein the aperture reassumes the closed configuration.
Patent CA-2271467-A1 (CA)
Inventor: ROBINSON DOUGLAS EDGAR
IPC: D21H27/40
Filed: 1997-11-13
Abstract: The use of a repeating embossing pattern on a wet-laid cellulosic fibrous structure (10) is described to improve the cleaning performance of said cellulosic fibrous structure (10), said embossing pattern being non-continuous in at least one diagonal direction and comprising non-equidistant discrete embossing sites (14), the cleaning performance index (CPIE) being not less than 105, wherein said index (CPIE) is represented in terms of the following equation CPIE = (CPVE - CPVR) x 100+100/CPVR. The cleaning performance index (CPIE) is preferably 110. In a preferred embodiment of the present invention, the embossing pattern is of an angular nature. In a more preferred embodiment of the present invention, the embossing pattern is in the form of a rhombus.
Patent CA-2272650-A1 (CA)
Title: Rack unit
Inventor: CALNON TERRY
IPC: B61D37/00
Filed: 1998-10-08
Abstract: A modular rack unit for use in a vehicle such as a coach consisting of an outer shell (2) and an inner shell (9). The inner shell (9) acts as a shelf for luggage and defines with the outer shell (2) an air conduit (5). The rack unit is secured to the vehicle by means of pillars (14) and two longitudinally extending brackets (18, 19). Each bracket defines with the engaging edges of the outer and inner shells respectively labyrinthine passages for the escape of any air from the air conduit (5).