baber/WOPTO huggingface dataset:
Patent CA-2251045-A1 (CA)
Title: Underflow cyclone with perforated barrel
Inventor: BUCHANAN JOHN SCOTT
IPC: B01J8/00
Filed: 1997-04-21
Abstract: A cyclone (310) and process for fluidized catalytic cracking of heavy oils is disclosed. Gas and entrained solids are added tangentially around a vapor outlet tube (320) in a cylindrical tube cyclone body. Solids and some gas are withdrawn via a plurality of openings (316) radially and longitudinally distributed in the cylindrical sidewall (314) of the cyclone. Distributed withdrawal replaces or reduces conventional underflow of solids from an end of cyclone outlet and reduces solids reentrainment. The removal of particles less than 5 microns in size is enhanced by reducing eddy formation and particle bouncing near the cyclone sidewall (314). The device may be used as an FCC  regenerator third stage separator.
Patent CA-2252484-A1 (CA)
Title: A method of treating bacterial infection of sutures and prosthetic devices
Inventor: LOIKE JOHN
IPC: A61K38/17
Filed: 1997-04-22
Abstract: An agent capable of inhibiting signalling mediated by a .beta.1 integrin cell surface receptor of leukocyte cells will treat a bacterial infection associated with a surface of a foreign body over and around which fibrin has been deposited, or a malignant tumor over and around which tenascin has been deposited. In addition, coating a foreign body with a fibrinolytic agent will prevent chronic bacterial infection associated with the surface of the foreign body. Furthermore, an agent capable of stimulating signalling mediated by a .beta.1 integrin cell surface receptor of leukocyte cells will treat chronic inflammation.
Patent CA-2252957-A1 (CA)
Title: Partition system including pocket door with light seals
Inventor: GRAVEL DONALD P
IPC: E06B3/46
Filed: 1998-12-02
Abstract: A partition system includes a freestanding partition system having a pocket-defining partition, and a pocket door slidably supported on the partition system for movement into and out of the pocket. The door includes a door frame having a bottom section defining a cavity that opens downwardly, and a stiff plate-shaped light seal is operably positioned in the cavity for vertical movement by gravity between different positions as the light seal engages and rides along a floor surface. The door includes an adjustable door frame having a rectangular shape with generally square corners and straight sides, but a trailing stile of the door frame is longitudinally adjustable such that, when adjusted, the rectangular shape changes to an orthogonal shape where at least one of the sides of the door frame is angularly distorted from the rectangular shape. This allows the door frame to be adjusted to better fit a door opening. The door further includes offset wheels that engage interior surfaces in the pocket-defining partition to accurately locate the door in the pocket to prevent damage, despite very low clearance. The door further includes a leading vertical side edge having a non-planar mating surface shaped to mateably dovetail into and engage an abutment surface on a lock jamb of the partition system in a manner that prevents light from leaking between the surfaces when the door is in a closed position.
Patent CA-2254756-A1 (CA)
Inventor: YOUNG JONATHAN R
IPC: A61K31/47
Filed: 1997-05-16
Abstract: Composés de formule (I) et leurs sels pharmaceutiquement acceptables, utiles comme antagonistes de la GnRH et pouvant en tant que tels être utilisés pour le traitement d'une variété d'états associés à l'hormone sexuelle tant chez l'homme que chez la femme.
Patent CA-2254934-A1 (CA)
Title: Device and process for separating particles with a rotary magnet system
Inventor: EXNER HUBERTUS
IPC: B03C1/247
Filed: 1997-05-17
Abstract: A particle separating device separates material to be sorted (1) into fractions of greater or lesser electrically conductive non-ferromagnetic particles (2, 3). The particles are fed to a conveying device (20), e.g. a conveyor belt (20a). Beneath or above the conveyor belt (20a) there is a rotary magnet system (30). The direction or rotation of the magnet system (30) is selected so that its surface and the conveyor belt (20a) move in different directions (26, 36). The fractions of greater or lesser electrically charged non-ferromagnetic particles (2, 3) are thus distributed over several collecting containers (41, 42).
Patent CA-2256879-A1 (CA)
Inventor: HEINONEN RISTO J
IPC: G01N21/85
Filed: 1998-12-21
Abstract: The invention relates to an optical measuring arrangement for measuring, particularly for liquid or gaseous substances (103). The measuring arrangement comprises at least one measuring head (104, 106) operating on an optical measuring band, and a measuring head holder (100) comprising a hole (108, 112) for fastening and supporting the measuring head (104, 106). In the hole, the holder (100) comprises an end piece (110) through which the measurement is to be made. On the optical band of the measuring head (104, 106),the end piece (110) is substantially transparent. Furthermore, the end piece (110) separates the measuring head from the substance (103) to be measured disposed in the measuring area (102).
Patent CA-2261719-A1 (CA)
Inventor: LITWIN ANDREJ
IPC: H01L29/78
Filed: 1997-07-04
Abstract: A semiconductor device is disclosed to obtain linear current-to-voltage characteristics through the origin of coordinates and additionally combined with a bi-directional structure. The typical device contains an oxide layer (20) on top of a p- doped substrate (10). On top of this oxide layer a n-type drift region (30) is created which forms a longitudinal n-drift region. The n-drift region comprises at each end a low doped p-type well (32) which has a portion (31) with strongly doped p+ semiconductor material which will constitute contacting to either a source or a drain electrode (35). Each p-type well (32) additionally contains a n+ area (33) and additionally on top of said p-type well a gate electrode (34), whereby the n+ doped area (33) is positioned in the p-well (32) between a gate and a drain electrode or a gate and a source electrode, respectively. Thus a bi-directional double DMOS  structure is created having a common drift region.
Patent CA-2262812-A1 (CA)
Title: Hollow fiber bioreactor comprising a hydrogel flow restrictor
Inventor: AMIOT BRUCE P
IPC: C12M3/06
Filed: 1998-05-13
Abstract: A bioreactor containing living animal cells at density approaching that of normal animal tissue is described. High cell loading is achieved by providing a hydrogel plug which controls fluid flow through the bioreactor during cell loading. Methods for making and using the bioreactor are also described.
Patent CA-2264627-A1 (CA)
Inventor: THIELEN GUNTER
IPC: F26B21/08
Filed: 1997-08-29
Abstract: The present invention relates to a process and devices to clean and reuse displaced outgoing air containing additives (e.g. solvents) or pollutants, especially to clean and reuse outgoing air with solvents displaced from drying devices in offset web-fed rotary presses. In the first stage of the process the outgoing air is passed through at least one condenser so that the additives or pollutants contained in the air can be condensed out. In the second step of the process the outgoing air treated from the first stage of the process is passed through at least one separator element in order to clean said air further from condensed additives or pollutants contained therein. Finally, the outgoing air treated after the second step of the process is returned for renewed absorption or suction of additives and pollutants.
Patent CA-2264927-A1 (CA)
Inventor: SAWYER DUDLEY NOEL
IPC: H01B3/44
Filed: 1997-09-01
Abstract: Un revêtement de câble est composé d'un polymère ou d'un copolymère de polypropylène et d'hydroxyde de magnésium ainsi que d'un enduit hydrofuge. Cette composition ne contient pratiquement pas d'halogène ni de phosphore, de composés phosphoreux ou de sels phosphoreux. En outre, le revêtement est exempt de cire polyéthylène.
Patent CA-2268417-A1 (CA)
Inventor: MARSHALL JULIAN MALCOLM
IPC: A61K47/48
Filed: 1997-10-08
Abstract: The invention relates to the exploitation of the migratory behaviour of mononuclear phagocytes with a view to targeting therapeutic drug delivery. The invention therefore concerns the attachment or incorporation of a therapeutic agent to or into a mononuclear phagocyte and the subsequent migration of the munonuclear phagocyte to a target area.
Patent CA-2269003-A1 (CA)
Title: Insecticidal and miticidal compositions
Inventor: FUKUCHI TOSHIKI
IPC: A01N43/36
Filed: 1997-11-25
Abstract: The invention relates to an insecticidal and miticidal composition which contains as active ingredients 4-bromo-2-(4-chlorophenyl)-1-(ethoxymethyl)-5-(trifluoromethyl)pyrrole-3-carbonitrile in combination with one or more compounds selected from the group consisting of benzoepin, nereistoxin-type insecticidal agents and diafenthiuron. The insecticidal and miticidal composition of the invention is effective against pests and mites having resistance to commercial insecticidal and miticidal agents.
Patent CA-2270738-A1 (CA)
Title: Circuit for monitoring optical signals
Inventor: OBHI JASVINDER
IPC: H04B10/08
Filed: 1999-04-29
Abstract: The present invention relates to a circuit for monitoring optical signals in a multiple channel system. A tunable band pass filter receives and input signal comprising multiple channels each having a different wavelength and predetermined channel spacing.  Output from the tunable filter is directed to a second filter having a periodic response with wavelength, such as an etalon. The response is designed to block wavelengths of light corresponding to the channels, permitting noise in the inter-channel space to be measured by a detector. A reference circuit launches light from a broad band source through a Bragg grating into the tunable filter. The Bragg grating reflects a known reference wavelength. Light which passes from the reference source through the tunable filter is also passed through the second filter to a detector. When a notch is detected by the reference detector, the tunable filter is known to be tuned to the reference wavelength. A comparison to the signal output at the first detector is used to correlate the position of the notch and the location of any inter-channel noise. A third filter, also preferably a fixed etalon, has a periodic response which matches the channel spacing designed to block wavelengths of light corresponding to the inter-channel spaces. A third detector measures the channel amplitude and also correlates the response with the reference notch to identify the individual channels. Advantageously, the monitoring circuit can provide channel and noise information associated with each channel without using costly and complex elements to identify the wavelength of the responses.
Patent CA-2271158-A1 (CA)
Title: An apparatus and a method for separating particles from hot gases
Inventor: HYPPAENEN TIMO
IPC: B01D45/16
Filed: 1997-10-31
Abstract: A centrifugal separator assembly connected to a reactor, such as a fluidized bed reactor, for separating solid particles from a gas discharged from its reactor chamber (10). Such separator assemblies comprise peripheral walls (32, 34, 36, 38) defining a vortex chamber (12). The peripheral walls include a common wall portion (32) connecting the separator assembly to the reactor chamber. A gas inlet (30) is arranged in a first wall portion (32') of the common wall portion (32), for introducing gas from the reactor chamber into the gas volume. The gas inlet includes at least two inlet ducts (30', 30") arranged side by side in the first wall portion within a < 90° sector of each of the at least one gas vortices, which are formed within the vortex chamber. The present invention also refers to a method of separating particles with the separator assembly.
Patent CA-2273980-A1 (CA)
Title: Agent de texture
Inventor: GUERRERO ARTURO
IPC: A23L27/60
Filed: 1997-12-22
Abstract: L'invention concerne un procédé de préparation d'un agent de texture, consistant à chauffer un mélange d'amidon, de protéine et d'eau, afin de gélatiniser au moins partiellement l'amidon, puis à soumettre ce mélange à un cisaillement ainsi qu'à une réduction de la taille des particules, le rapport protéine/solides d'amidon étant compris entre 1/10 et 1/500 en poids, et la quantité de solides d'amidon représentant 1,5 à 25 % en poids du poids total du mélange.
Patent CA-2274167-A1 (CA)
Inventor: MONTOYA JOHN A
IPC: H01L27/04
Filed: 1997-12-03
Abstract: A semiconductor element, e.g., a semiconductor bridge element (30), is surface mountable as it has thereon a metal layer comprised of metal lands (44) and electrical connectors (45a, 45b and 45c) which terminate in flat electrical contacts (47) on the back surface (35) of the element. Optionally, the element may also contain back-to-back zener diodes (46a, 46b) to provide unbiased protection against electrostatic discharge. When configured as a semiconductor bridge element (30), the element, among other uses, finds use as an igniter (13) for an explosive element. The elements may be made by a method including a cross-cut technique in which grooves (60) cut in the front surface (58) of a silicon wafer substrate (56) intersect grooves (64) cut in the back surface (62) of the wafer. The intersecting grooves (60, 64) form a plurality of apertures in the wafer (56), the apertures and grooves helping to define a plurality of dies having side surfaces. A dielectric layer (48) is deposited on the wafer (56) and a polysilicon film (52) is deposited over the dielectric layer (48). A metal layer (44, 45a-45c, and 47) is then deposited on the wafer while it is still intact to provide an electrical connection from the top surface (34) of element (30) along the side surfaces (66a, 66b and 66c, and 68a, 68b and 68c) to the bottom surface (35) to constitute the dies as the semiconductor elements (30). The elements (30) are separated and the electrical contacts (47) of a given element can be mounted directly to a header (36) or the like by soldering, without need for connector wires (14).
Patent CA-2274337-A1 (CA)
Inventor: STAUBER HANS-ULRICH
IPC: B65H29/66
Filed: 1999-06-11
Abstract: The apparatus has an intermediate conveyor (18) with conveying elements (26) distributed in the circumferential direction on bearing plates (36). Each conveying element (26) has a roller segment (54), which is driven counter to the direction of circulation (U), and a belt conveyor (56)-which is assigned to said roller segment. A control device (48) keeps the conveying elements (26) in a mutually parallel position during circulation in the direction of circulation (U). During movement past the receiving location (16), a rear section (82) of the roller segment (54) and the belt conveyor (56) form an introduction gap (24) for a product (14) fed by a feed conveyor (12) in each case. During further rotation, said product (14) is moved through the conveying element (26), in the conveying gap (90) now formed by the roller segment (54) and belt conveyor (56), and is deflected by means of the guide element (92). At the transfer location (50), the product (14) is thus introduced into a gripper (96) of a removal conveyor (52), whereupon the conveying gap (90) is eliminated. The apparatus, while maintaining the sequence of the products (14), changes the position of the latter such that the sides (20, 20') of the products (14), said sides facing one another in the fed imbricated stream (S), are changed round.
Patent CA-2274863-A1 (CA)
Inventor: IYER SHRIDHAR RATNASWAMY
IPC: C09J9/02
Filed: 1997-12-15
Abstract: A novel thermally reworkable anisotropic conductive adhesive composition for attaching a semiconductor device to a substrate is provided. The composition comprises (a) a thermally reworkable cross-linked resin produced by reacting at least one dienophile having a functionality greater than one and at least one 2,5-dialkyl substituted furan-containing polymer, and (b) at least one electrically conductive material present in an effective amount to provide a conducting medium in only one direction.
Patent CA-2275312-A1 (CA)
Title: Pyrrolo[3,4-d]pyrimidinone derivatives and their use as medicaments
Inventor: HARRISON RICHARD
IPC: A61P17/00
Filed: 1997-12-18
Abstract: The invention provides certain novel 5-substituted pyrrolo¢3,4-d!pyrimidine-2,4-diones according to general formula (I), processes for their preparation, pharmaceutical compositions containing them, a process for preparing the pharmaceutical compositions, and methods of treatment involving their use.
Patent CA-2276906-A1 (CA)
Inventor: MOURRUT BERNARD
IPC: C11D3/36
Filed: 1999-07-05
Abstract: Compositions détergentes non moussantes et stables en milieu fortement alcalin, comportant 25 à 45 % en poids d'agent détergent non moussant, en particulier un tensioactif non ionique chapeauté, par exemple un .alpha.alkyle-.omega.-halogéno-poly(oxy-1,2-éthanediyle), ou un l'.alpha.-décyl-.omega.-benzyloxy-poly(oxy-1,2-éthanediyle), 15 à 25 % en poids d'agent de stabilisation, en particulier un ester phosphorique d'alcool gras, et 30 à 60 % en poids d'acide ou d'anhydride alkénylsuccinique, en particulier l'acide ou l'anhydride octénylsuccinique. Ces compositions permettent la préparation de lessives alcalines pour nettoyage de surfaces dures, elles-mêmes non moussantes, même en nettoyage sous pression.
Patent CA-2277847-A1 (CA)
Title: Method and apparatus for metal extraction
Inventor: UDAY PAL
IPC: C25C7/06
Filed: 1998-01-06
Abstract: An amperometric in situ apparatus and technique for measuring the concen-trations and transport properties of easily dissociable oxides in slags is described.  The technique consists of a combination of different measurements utilizing an elec-trolyte to separate a reference-gas compartment from the slag of interest. A  potentiometric measurement (type I) provides information on the thermodynamic properties of the slag; and amperometric measurement (type II) yields information concerning the type and transport prop-erties of dissociable oxides; an electroly-sis measurement (type III) determines the concentration of dissociable oxides. A  method and apparatus for metals extrac-tion is also described which includes a vessel for holding a molten electrolyte, the electrolyte comprising a mobile metal-lic species and an anionic species hav-ing a diffusivity greater than about 10-5 cm2/sec; a cathode and an anode, the cath-ode in electrical contact with the molten electrolyte, the cathode and molten elec-trolyte separated from the anode by an ionic membrane capable of transporting the anionic species of the electrolyte into the membrane; and a power source for generating a potential between the cathode and the anode.
Patent CA-2280743-A1 (CA)
Title: Orotracheal intubation guide
Inventor: PARKER JEFFREY D
IPC: A61M16/04
Filed: 1998-03-13
Abstract: A blind intubation guide (10) including a tube-receiving space (46) with a tube-supporting spout (50) which effectively overhangs the epiglottis (90) so as to prevent an orotracheal tube (60) from catching thereon as such tube (60) is advanced through the guide (10). A guide wall (42), which aims the tube (60) into the laryngeal opening (82) and has an upper edge (92) below the level (93) of the junction of the spout (50) and an aft member (16) and a support member (30) of the guide, cooperates with a free edge (52) of the spout (50) to rotate the tube (60) into position for advancement into the laryngeal opening (82) and the trachea (96).
Patent CA-2281298-A1 (CA)
Inventor: OGUMA TAKEFUMI
IPC: H04B10/07
Filed: 1999-08-31
Abstract: A laser oscillation wavelength monitoring device, which can obtain a changing direction and a changing amount of an oscillation wavelength without any relation with a polarization state of an incident light, whose manufacturing is made to be easy, is provided. The laser oscillation wavelength monitoring device provides a lens that converts an incident light from an optical fiber in which an optical signal is transmitted by a wavelength division multiplex (WDM) technology to a beam, a polarizer that makes an arbitrary linear polarization state in the beam transmit, a polarization splitting means that splits the arbitrary linear polarization state into a first polarization state and a second polarization state, a first and a second optical band pass filters to which each polarization state split by the polarization splitting means is inputted, a first and a second light receiving elements which receive light transmitted through the first and second optical band pass filters respectively and convert the received light to electric signals, a divider that calculates a ratio of digital values that the output levels of the first and second light receiving elements are converted at analog/digital (A/D) converters, an adder that accumulates the outputs of the divider every designated unit time, and a counter. And the laser oscillation wavelength monitoring device outputs an average value that the accumulated result designated times at the adder is divided by the counted value.
Patent CA-2283406-A1 (CA)
Title: Absorbent item
Inventor: ASCHENBRENNER FRANZ
IPC: A61F13/15
Filed: 1998-03-23
Abstract: The invention relates to an absorbent item comprising a liquid-permeable layer (18) which faces the body when the item is in use, a liquid-impermeable layer (20) which faces away from the body when the item is in use, and an absorbent element positioned between said liquid-permeable layer (18) and said liquid-impermeable layer (20). This absorbent element contains an absorbent material (32) which remains free-flowing even after contact with a liquid. The invention also relates to an absorbent item which has a liquid-impermeable layer which faces away from the body when the item is in use and an absorbent element which is surrounded by a liquid-permeable layer, said absorbent element containing a material which remains free-flowing and absorbent even after contact with a liquid. The absorbent element is joined to the liquid-impermeable layer in a central area of said layer.
Patent CA-2284954-A1 (CA)
Inventor: FRAENKEL CHRISTIAN
IPC: G06F3/038
Filed: 1999-10-04
Abstract: An improved interface controller for use with a lap top personal computer is provided. In one aspect of the controller, a low power consumption, mufti-axis, multi-value generator is provided. Due to the low power consumption, the multivalue generator operates well within the power constraints of a serial port. Additionally, the device has minimal impact on the power consumption of a battery powered, lap top personal computer. In another aspect, a neural jitter reduction system is used in conjunction with the multivalue generator. The neural fitter reduction system qualifies changes in the sensor array position, differentiating between human operation and noise generated jitter. In another aspect, the interface controller can be used in any of three, user-selected modes: game controller, joystick, or mouse. A combination of firmware and software allow the controller to emulate any of these three devices, thus increasing the usefulness of the device.
Patent CA-2285382-A1 (CA)
Title: Neocartilage and methods of use
Inventor: ADKISSON HUSTON D
IPC: A61K35/32
Filed: 1998-04-03
Abstract: Disclosed are neocartilage compositions characterized by having multiple layers of cells, said cells being surrounded by a substantially continuous insoluble glycosaminoglycan and collagen-enriched hyaline extra-cellular matrix, and which neocartilage phospholipids are advantageously enriched in anti-inflammatory n-9 fatty acids, particularly 20:3 n-9 eicosatrienoic or Mead acid. Also disclosed are methods of growing neocartilage in substantially serum-free growth media and methods of producing a conditioned growth media containing compounds effective to enhance neocartilage formation. The neocartilage compositions are useful as implants and as replacement tissue for damaged or defective cartilage and as a model system for studying articular cartilage disease and response to natural and synthetic compounds.