baber/WOPTO huggingface dataset:
Patent CA-2199102-A1 (CA)
Title: Cryolite resistant refractory
Inventor: CORTELLINI EDMUND A
IPC: C25C3/08
Filed: 1995-09-25
Abstract: This invention relates to a Hall-Heroult cell for aluminum production comprising a cryolite-resistant liner comprising:   i) between 75 weight percent wt% and 95 wt% alumina-silica refractory grain, and ii) between 1 wt% and 10 wt% of a sealant selected from the group consisting of feldspar and nepheline.
Patent CA-2199259-A1 (CA)
Title: Covering material for agricultural and horticultural soil
Inventor: BASTIAANSEN ANTONIUS JOHANNES
IPC: C09K17/52
Filed: 1995-09-22
Abstract: The invention provides a covering material for agricultural soil, which material contains starch or a derivative or fraction thereof as binder together with a structure-improving amount of an acid and/or an oil, and a finely divided vegetable filler such as straw. The oil is for instance palm oil or linseed oil in an amount of 1-25 wt. %. The acid is preferably 0.2-4 % by weight of phosphoric acid or citric acid. The material may further comprise fungicides, bentonite and/or rubber latices.
Patent CA-2199982-A1 (CA)
Inventor: BUYSMAN JEFFREY L
IPC: B65G45/12
Filed: 1995-09-06
Abstract: Apparatus (10) and method for refurbishing damaged belting (16). The apparatus (10) includes a frame (11) with a conveyor system (14). A mechanism (12) is attached to the frame (11) for removing a desired amount of the belting surface (24) as the belting (16) moves relative to the frame (11) on the conveyor system (14).
Patent CA-2201440-A1 (CA)
Title: Rubber composition and tire with tread thereof
Inventor: SANDSTROM PAUL HARRY
IPC: C08K3/36
Filed: 1997-04-01
Abstract: The present invention relates to a rubber composition reinforced with a combination of silica and defined carbon black and to pneumatic tires having treads comprised of such rubber composition.     The reinforced rubber composition comprises, in one aspect, at least one elastomer, defined carbon black, precipitated silica and at least one silica coupling agent.
Patent CA-2202008-A1 (CA)
Title: Energy management system
Inventor: DEMILLEVILLE HUGUES
IPC: F24F11/00
Filed: 1997-04-07
Abstract: The multi-function energy management system has a plurality of predetermined operating programs stored in memory in or around a micro controller. The micro controller may be pre-set to operate a plurality of  heating ventilation,  air conditioning  and other operating devices according to selected ones of such operating programs for maintaining the temperature in a room of a building at a desired ambient temperature condition and other loads at various operating conditions.  The system has a continuously operating internal clock with a back up battery having a life span of ten years. Adjustment allowance is provided in the clock for leap years and daylight savings time. The system is capable of selectively operating the heating, ventilation, air conditioning devices and other energy consuming devices such as lighting, thermal storage heaters according to the occupancy of the room to provide a maximum saving of energy consumption.
Patent CA-2202953-A1 (CA)
Inventor: HARTMAN STEVEN
IPC: B29C48/21
Filed: 1997-04-17
Abstract: A foamed polyethylene product has an outer sheath of non-foamed polyethylene fused to an underlying foamed body portion.  Preferably, the product is produced in an in-line method when the foam body is extruded and subsequently the skin is extruded directly on the body portion.  This process only causes limited thermal degradation of an outer layer of the body portion which improves adhesion of the skin to the body portion.
Patent CA-2204806-A1 (CA)
Title: Fuel additives and compositions
Inventor: JEFFREY GARETH CHARLES
IPC: C10L1/192
Filed: 1997-05-08
Abstract: This invention relates to low sulfur fuel compositions which exhibit improved lubricity compared to the low sulfur fuels alone. The low sulfur fuel compositions contain a middle distillate fuel having a sulfur content of 0.2% by weight or less, a carboxylic acid amide and at least one member selected from the group consisting of cold flow improvers, ashless dispersants, and mixtures thereof.
Patent CA-2206414-A1 (CA)
Title: Eavestrough easy-clean system
Inventor: ST-JACQUES JEAN L
IPC: E04D13/08
Filed: 1997-06-13
Abstract: An easy clean system 1 for a gutter 2 at the eaves of a roof 8 on a building 7 comprising a free flow unit (3) connected to a downpipe (5) in the gutter (2), so that the system 1 will extend vertically down along an exterior wall of the building 7 and carry rainwater away from the roof 8.  A facility 4 within the system 1 is for separating any dirt and debris 9 that falls into the rainwater in the gutter 2, so that the rainwater will flow without obstruction out through the facility 4 and out the downpipe 5
Patent CA-2207869-A1 (CA)
Title: Method of promoting an immune response with a bispecific antibody
Inventor: RING DAVID B
IPC: C12N15/09
Filed: 1995-11-28
Abstract: A method of inducing an immune response in a patient is provided. The method involves administration of bispecific molecules capable of recognizing and binding Fc.gamma.RIII and a second antigen. The second antigen may be a cancer antigen, a viral antigen, a fungal antigen, a parasitic antigen or a toxin. The second antigen may or may not be present in the patient at the time the method of the invention is performed.
Patent CA-2209385-A1 (CA)
Inventor: SZCZEPANSKI THOMAS L
IPC: G01N27/72
Filed: 1996-02-22
Abstract: A method for determining the suitability of workpieces for machining. A  workpiece (6) is probed with a non-contact type sensor (26) to produce a voltage reading corresponding to the mass of the workpiece. The reading is compared to a tolerance voltage range based on the mass of a reference workpiece and from this comparison it is determined whether the workpiece is an uncut or cut workpiece and if it is appropriate to machine the workpiece.
Patent CA-2210873-A1 (CA)
Inventor: THORPE MALCOLM JOHN
IPC: C09K8/16
Filed: 1996-01-22
Abstract: Solution de silicate de métal alcalin renfermant un agent qui empêche la précipitation ou la gélation du silicate dans la solution en présence d'ions métalliques divalents. L'agent est un composé minéral hydrosoluble renfermant un cation monovalent autre que le cation du silicate de métal alcalin, et un anion empêchant la précipitation ou la gélation.
Patent CA-2211542-A1 (CA)
Inventor: AZZARO THOMAS PETER
IPC: H05K1/05
Filed: 1996-01-29
Abstract: Electrical feedthroughs in printed circuit board support substrates (24) for use in making double sided ceramic multilayer printed circuit boards are made by insulating the feedthrough openings with a first layer of nickel oxide (22) and one or more layers of glass (26, 28), and then filling the remainder of the feedthroughs with a conductive metal via fill ink (30). After firing, the resultant structure provides insulated electrical feedthroughs through the support substrate (24).
Patent CA-2213622-A1 (CA)
Title: Detection of biomolecules
Inventor: GRINBERG JACOB
IPC: C12Q1/68
Filed: 1996-02-27
Abstract: The present invention concerns a method for detecting the presence of a catalytically active ribozyme in a medium. The detection of the catalytically active ribozyme may be a goal by itself, or the ribozyme may serve as a reporter for the presence of other biomolecules in an assayed sample. The detection is carried out in a catalytic system wherein the presence of the active ribozyme serves to produce other active ribozyme in a positive-feedback amplificatory manner.
Patent CA-2213824-A1 (CA)
Inventor: STEINBRECHER LESTER E
IPC: C25D13/20
Filed: 1996-02-21
Abstract: Les défauts de surface apparaissant après une peinture par électrophorèse sur des surfaces passivées par phosphatage à l'aide de produits passivants à base de chrome hexavalent peuvent être supprimés ou atténués en maintenant la surface dans une humidité permanente entre son revêtement par conversion et l'application de la peinture par électrophorèse. Cela s'obtient en faisant précéder l'étape de passivation par un traitement à l'aide d'une composition liquide aqueuse comportant au moins les constituants suivants: (A) un polymère hydrosoluble ou hydrodispersible d'un poids moléculaire moyen d'au moins 500; (B) des acides fluorométalliques ou leurs anions dont les molécules comportent (i) un atome de bore, de silicium, de zirconium de fer, d'aluminium ou de titane, (ii) au moins quatre atomes de fluor, et (iii) facultativement un ou plusieurs atomes d'oxygène, d'hydrogène ou des deux; (C) des sels de zirconium de l'acide éthylènediaminetétraacétique; et (D) des zirconylcarboxylates ou carbonates d'ammonium ou de métaux alcalins; ou en remplaçant la composition passivante contenant du chrome par une composition liquide aqueuse de traitement du type décrit ci-dessus.
Patent CA-2221359-A1 (CA)
Inventor: MCCORMICK FRED B
IPC: C08K5/5465
Filed: 1995-06-05
Abstract: Une composition d'un produit contient un cyanate ester silane aromatique comprenant au moins un groupe cyanate ester et au moins un groupe silyle hydrolysable. En présence d'une résine cyanate ester, le cyanate ester silane aromatique agit comme agent de couplage pour améliorer l'adhésion du cyanate ester à un substrat. Ces compositions durcissantes sont utiles pour renforcer les composites, comme adhésifs et comme compositions de revêtement.
Patent CA-2223478-A1 (CA)
Inventor: SLACK WILLIAM E
IPC: C08G18/80
Filed: 1997-12-04
Abstract: A TDI residue generated from the phosgenation of toluene diamine having an ortho-isomer content of less than 0.5% is used to produce a urethane-filled hydroxyl compound. The TDI residues useful in this invention must contain at least 10% monomeric TDI and have a total NCO content of at least 20%. These TDI residues are reacted with a monofunctional alcohol in an amount such that the equivalent ratio of isocyanate groups to hydroxyl groups is from about 0.9:1 to about 1:0.9. The resultant composition may then be dissolved in a polyhydroxyl compound to produce a urethane-filled polyhydroxyl compound. This urethane-filled polyhydroxyl compound may then be reacted with a polyisocyanate to produce a polyurethane.
Patent CA-2226537-A1 (CA)
Title: Power flow control with rotary transformers
Inventor: LARSEN EINAR VAUGHN
IPC: H02P9/48
Filed: 1998-01-08
Abstract: A power flow controller seeks to inject a voltage V ser on a transmission path between a first electrical area and a second electrical area, in order to cause a desired power flow into the second electrical area. The power flow controller (20) includes a series transformer (40), a regulating transformer (44), a rotary phase shifting transformer network (44), and a control system (46). The rotary phase shifting transformer network (44) includes a first rotary phase shifting transformer (102 1) and a second rotary phase shifting transformer (102 2). The first rotary phase shifting transformer and the second rotary phase shifting transformer have first terminals (windings of one of either rotors or stators) connected in parallel to a regulating winding 62) of the regulation transformer.      Second terminals (windings of the other of rotors or stators) are connected in series with an excited winding (52) of the series transformer. The control system applies control signals to the first rotary phase shifting transformer and the second rotary phase shifting transformer to obtain desired phase angles .theta.E1, .theta.E2 between the rotor (110) and stator (112) of each transformer, and thereby achieve an effective phase shift .theta.PFC and a voltage magnitude ratio T PFC between the first electrical area and the second electrical area.
Patent CA-2227177-A1 (CA)
Title: Automated scanning of microscope slides
Inventor: RAZ RYAN S
IPC: G02B21/34
Filed: 1996-07-18
Abstract: A system is provided for the automated imaging of a succession of microscope slides (S). The slide are mounted in carriers and loaded into cassettes. Slide carriers from a first cassette in a slide loader (2) are ejected from the cassette into a loading station and thence moved by an actuator onto a stage beneath a microscope objective (6) which images a sub-area of a circular sample area on the slide onto an imaging sensor (10) whence images are digitised and stored. The stage (4) is conjointly rotated by a motor (22) as a carrier (24) for the stage is moved linearly, so as to execute a spiral scan of sub-areas of the sample area which sub-areas are successively imaged using a strobe lamp (12) to illuminate the sample area at intervals during the scan determined by signals from an encoder (25). A preliminary scan, which may be in an opposite direction along the spiral, may be used to obtain, for a focus actuator (18), focusing data used during the scan. As a following slide carrier is loaded onto the stage for scanning, the previous slide carrier is ejected into a chute from which an actuator inserts it into a further cassette in the same orientation in which it left the first cassette.
Patent CA-2228519-A1 (CA)
Title: Composite membrane sensor
Inventor: PACE RONALD JOHN
IPC: G01N27/02
Filed: 1996-08-01
Abstract: The present invention provides a biosensor (10) comprising an electrode (11) and a membrane (14) in which the biosensor includes at least two zones (12, 13) each zone differing from each other zone in property. The membrane includes a plurality of ionophores, at least a proportion of which are capable of lateral diffusion within the membrane. A plurality of first binding partner molecules are attached to membrane elements positioned within a first zone such that the first binding partner molecules are prevented from diffusing laterally into a second zone. Second binding partner molecules are attached to the ionophores and the rate of lateral diffusion within the membrane of the first binding partner molecules and second binding partner molecules is different.
Patent CA-2230699-A1 (CA)
Title: Actuation unit for venetian blinds or the like
Inventor: ROSSINI MAURO
IPC: E06B9/322
Filed: 1998-03-02
Abstract: An actuation unit for light-blocking means, such as Venetian blinds or the like, which are accommodated in a double-glazing unit or are fixed to a window and are suitable to be moved from a fully packed or rolled-up condition to an opened-out condition and viceversa. The unit comprises a magnetic kinematic coupling device which is associated with means for generating a rotary motion and with kinematic systems for moving the blocking means; the device is constituted by at least one first permanent magnet which is connected so as to rotate with the axis of the motor means, and at least one second permanent magnet, whose polarization is parallel and similar to that of the first magnet and which is suitable to rotate in relation to the rotation of the central magnet by virtue of the closure of radial field lines.
Patent CA-2230705-A1 (CA)
Title: Expandable snow tools for vehicles
Inventor: WHITEHEAD STEPHEN P
IPC: B25G1/04
Filed: 1998-03-02
Abstract: A telescoping snow tool can be conveniently retracted for compact storage in vehicles and can be easily extended for use in shoveling and removing snow or ice. The comfortable telescoping snow tool can have an outer composite shaft with a manually grippable, thermally insulating sleeve that encloses a tubular metal core into which slides an inner shaft. The inner shaft can comprise a metal tube with a protective coating. The telescoping snow tool can have a handgrip and a blade, such as a lightweight plastic snow shovel blade.
Patent CA-2232086-A1 (CA)
Inventor: CHACHOUA SAMIR
IPC: G16H70/60
Filed: 1996-09-13
Abstract: Cette invention concerne un procédé d'identification, de production et d'utilisation d'agents diagnostiques, thérapeutiques et préventifs spécifiques à une maladie et à une condition, lesquels agents sont obtenus à partir de micro-organismes, d'organismes et d'extraits d'origine naturelle ou de leurs modifications, et à partir d'autres agents chimiques ou physiques. Cette invention concerne également des dispositifs diagnostiques, thérapeutiques et de tri.
Patent CA-2232681-A1 (CA)
Inventor: SNOW CLIFFORD H JR
IPC: B29C48/06
Filed: 1996-09-30
Abstract: Rotatable hand tools such as screwdrivers utilize a coextruded tool handle (10) which provides a comfortable grip. The handle has an extruded body (18) formed of a rigid synthetic resin with a uniform cross section over most of the length of its grip portion. Extending axially over the length of the grip portion (22) is a multiplicity of coextruded peripherally spaced stripes (20) of a synthetic resin which is substantially softer than that of the body, and these stripes are firmly bonded to the body.
Patent CA-2232894-A1 (CA)
Title: Ibm pc compatible multi-chip module
Inventor: FELDMAN DAVID L
IPC: G06F13/36
Filed: 1996-11-27
Abstract: A multi-chip module (10) and a chip set that comprises a plurality of the multi-chip modules. The multi-chip module (10) includes a plurality of functional circuits (40, 42, 36, 32, 34, 44, 28, 50, 48, 20, 26, 46, 30) provided on a substrate, the circuits (40, 42, 36, 32, 34, 44, 28, 50, 48, 20, 26, 46, 30) defining a plurality of signal inputs and outputs. The functional circuits (40, 42, 36, 32, 34, 44, 28, 50, 48, 20, 26, 46, 30) of one embodiment of the module include a CPU (20), serial interfaces (32, 34), a parallel interface (36), a hard drive interface (42), a floppy disk interface (40), a keyboard interface (28), and flash memory (44).
Patent CA-2234595-A1 (CA)
Inventor: JANSSEN REINHARD
IPC: D21H27/26
Filed: 1998-04-07
Abstract: A thin film with improved surface properties in terms of its ability to be lacquered, printed and laminated made of non-beater sized paper contains a pigment coating on the printing or lacquering side and is impregnated with impregnating resins starting from the side opposite the pigment coating.
Patent CA-2235343-A1 (CA)
Title: Systeme de capteur optique destine a determiner des valeurs de ph independamment de la force ionique
Inventor: ROUILLY MARIZEL
IPC: C08L33/26
Filed: 1996-10-11
Abstract: L'invention se rapporte à une composition polymère comprenant des colorants fluorescents sensibles au pH, ainsi qu'un capteur optique, lequel est indépendant de la force ionique, est destiné à déterminer des valeurs de pH et contient la composition sous la forme d'une membrane placée sur un matériau support transparent. L'invention concerne encore un procédé conforme au système de fluorescence et permettant de déterminer des valeurs de pH extrêmement précises, indépendamment de la force ionique de la solution d'essai. Ce procédé est notamment approprié à la détermination de la valeur du pH de solutions physiologiques, particulièrement à la détermination de la valeur du pH du sang. Le copolymère insoluble dans l'eau se compose en poids: a) de 39,9 à 60 % de N,N-diméthylacrylamide ou de N,N-diméthylméthacrylamide; b) de 60 à 39,9 % d'un monomère de la formule (Ia) ou de la formule (Ib), dans lesquelles R¿a? représente hydrogène ou alkyle C¿1?-C¿6? et R¿b? représente alkyle C¿1?-C¿12?; c) de 0,1 à 0,7 % d'un fluorophore sensible aux protons, lequel est soit mélangé au polymère, soit lié de manière covalente à celui-ci; et d) de 0 à 20 % d'un agent de réticulation dioléfinique, la somme des pourcentages pondéraux de a) à d) étant de 100 %.
Patent CA-2238901-A1 (CA)
Title: Circuit interrupteur with covered accessory case, adjustable under voltage relay, self-retaining collar and one-piece rail attachment
Inventor: FARROW WILLIAM C
IPC: H01H71/08
Filed: 1998-05-26
Abstract: A molded case circuit breaker is taught with a housing base and a primary cover disposed on the housing base. The primary cover has a recess therein for an auxiliary module which is disposed in the recess. A secondary cover is disposed on the primary cover for covering the recess when the auxiliary module is disposed therein. A combination manual trip and secondary cover interlock is provided which is accessible from outside of the secondary cover for manually opening separable main contacts or for automatically opening separable main contacts when the secondary cover is removed. There is also provided on the back plane of the housing a single piece DIN rail attachment for securing the back plane to a DIN rail. There is provided an under voltage release mechanism for actuating the circuit breaker to trip on the occurrence of an under voltage condition of pre-determined magnitude across the lines served by the circuit interrupter. The under voltage release mechanism has an adjustment spring which is controlled by a nut or thumb screw on a shaft to vary the spring force for calibrating the under voltage release mechanism. There is also provided a self-retaining collar member for the load and line terminals of the circuit interrupter. The collar member comprises a locating protrusion in the bottom thereof which aligns with a hole in the load or line conductors. Side entrapment members which entrap the line or load conductor therebetween and between the bottom of the collar member are also provided.
Patent CA-2239234-A1 (CA)
Inventor: MACEY BLAIR
IPC: B60R25/00
Filed: 1998-05-29
Abstract: A locking hub assembly has a hub rotatably engaged to a vehicle's non-rotating axle and a manually controlled actuator for selectively switching the hub assembly between an engaged position for rotatably fixing the hub to the axle and a disengaged position for freeing rotation of the hub on the axle. A locking mechanism for the hub assembly has a lock operatively engaged with the actuator and at least one throw arm. The lock is selectively operable between: a locked position in which the throw arm is extended into locking engagement with the hub to prevent operation of the actuator, and to prevent removal of the actuator from the hub as well as the hub from the axle; and, an unlocked position in which the throw arm is retracted from locking engagement to permit operation of the actuator.
Patent CA-2239861-A1 (CA)
Title: Alkali silicate glass
Inventor: FRANK MARTIN
IPC: C03C3/097
Filed: 1998-06-08
Abstract: Alkali silicate glasses are described which, in view of their good chemical stability and their optical properties and processing properties, are particularly suitable as a coating or veneering material for ceramic dental frameworks and hence for the production of all-ceramic dental restorations such as crowns or bridges. The alkali silicate glasses each contain the following components:      Component            Wt. % SiO2                 55.0 to 71.0 Al2O3            5.0 to 16.0 B2O3                  0.2 to 10.0 K2O                   4.5 to 10.0 Na2O                  3.0 to 14.0 A preferred form of these glasses contain at least one of the following components:      Component            Wt.% CaO                  0    to   3.0 F                    0    to   3.0 P2O5            0    to   0.6 Li2O                 0    to   4.0 BaO  0    to   5.0 ZnO                  0    to   4.0 TiO2+Zro2            0.2  to  5.0 CeO2                 0    to   2.0
Patent CA-2243146-A1 (CA)
Title: Method and apparatus for occlusion monitoring using pressure waveform analysis
Inventor: GORDON TIMOTHY M
IPC: A61M5/168
Filed: 1997-11-10
Abstract: A method and apparatus for occlusion monitoring in a flow circuit using pressure waveform analysis. The flow circuit includes a first conduit and a second conduit which fluidly interconnects a fluid supply with the first conduit. A pump is disposed in an intermediate portion of the second conduit.  Monitoring of the pressure in the first conduit is used to identify any occlusions in that portion of the second conduit which is disposed between the pump and the fluid supply.