baber/WOPTO huggingface dataset:
Patent CA-2258725-A1 (CA)
Title: Analogues or derivatives of quercetin (prodrugs)
Inventor: WILLIAMS JONATHAN GARETH
IPC: C07D311/30
Filed: 1997-06-27
Abstract: Novel carbamate ester analogues or derivatives of Quercetin (prodrugs) having a structural formula I are provided which have enhanced aqueous solubility and which are especially suitable for use as biodegradable prodrugs in pharmaceutical compositions formulated for clinical use:     or a pharmaceutically acceptable salt thereof, wherein one of R1, R2, R3, R 4 and R5 is an amino acid carbamate group CONHCH(R6)CO2H and the remainder are each hydrogen, and wherein R6 is hydrogen or C1-4 lower alkyl.
Patent CA-2259863-A1 (CA)
Title: Open bowl for a vertical turbine pump
Inventor: MARTINS VICTOR K
IPC: F04D1/04
Filed: 1999-01-21
Abstract: An open bowl for a vertical turbine pump, includes a bowl body having an inner wall and an outer wall, both walls being of substantially constant optimum thickness, surrounding a vertical axis and connected by diffuser vanes which define hydraulically optimized diffuser passages through the bowl body extending from a bottom end to a top end, the diffuser vanes being radially hollow and providing open paths through the inner and outer walls to a cavity surrounded by the inner wall; a flange at the top end of the outer wall for attachment of a discharge conduit for the pumped fluid; provision on the bottom end of the outer wall for attaching to a flange of a suction bell; further provision on an inner surface at the top of the inner wall for providing sealing engagement with an upper end of a separable substantially cylindrical bearing housing; and provision at the bottom end of the inner wall for attaching to a flange of the bearing housing. The open bowl concept provides a light weight pump which provides better metal flow, solidification control, and cooling during casting by elimination of drastic section thickness variations in the bowl body.
Patent CA-2260059-A1 (CA)
Title: Wireless remote control transmitter for use with consumer entertainment electronics appliance
Inventor: KRIEGSMAN IRVING M
IPC: H01H9/02
Filed: 1996-07-08
Abstract: A wireless remote control transmitter (11) for controlling home entertainment devices. An L-shaped (PCB) printed circuit board (27) having a front portion (27-1) and a right side portion (27-2) is disposed within a rectangular housing (13). The PCB includes a first LED (31) adapted to transmit an infrared light beam through a window (32) in the top end (19) of the housing, a second LED (35) adapted to transmit an infrared light beam through a window (36) in the right side (23) of the housing, electronics (19) and a printed circuit coupling the LED's to the electronics. The keys of a first keyboard (41), accessible from the front (15) of the housing, cause the first LED (31) to emit coded signals when operated. The keys of a second keyboard (43), accessible from the right side (23) of the housing and corresponding to functions of the remotely controlled device that are most often controlled by the users, cause the second LED (35) to emit coded signals when operated.
Patent CA-2263293-A1 (CA)
Inventor: LAWRENCE PAUL J
IPC: G01N31/22
Filed: 1997-07-10
Abstract: Tests for elevated pH and volatile amines in aqueous fluids are disclosed, including tests useful in the diagnosis of bacterial vaginosis and in other biological conditions. By using formulated indicators and indicators held in matrices that are permeable to gas but not to liquid, the tests provide clear and sharp transitions detectable by visual or machine-readable means rather than by subjective judgements such as small gradations in color or olfactory determinations. The tests lend themselves readily to iconic readouts of the test indications and to the inclusion of positive and negative controls.
Patent CA-2263589-A1 (CA)
Title: Control system monitor
Inventor: PULEO ADAM J
IPC: G06F11/34
Filed: 1997-08-27
Abstract: A process control system (PCS) includes a control network and a plurality of nodes coupled thereto, the PCS controlling a process. A monitoring system, operatively connected to the PCS, obtains predetermined data of the PCS to monitor the performance of the PCS. The monitoring system comprises a first computer system operatively connected to the control network of the PCS. The first computer system continually accesses the predetermined data of the PCS  on a predetermined periodic basis in accordance with a predetermined protocol of the control network. The first computer system is located in physical proximity with the PCS. A second computer system is located remotely from the PCS. The second computer system receives the predetermined data of the PCS  transferred from the first computer system, the transfer being initiated by the first computer system when an alarm condition of the PCS is indicated by the predetermined data. A communication line is connected between the first and second computer systems for providing a communication link therebetween.
Patent CA-2263990-A1 (CA)
Inventor: STIELAU MARTIN ERNST
IPC: C08L19/00
Filed: 1997-08-19
Abstract: La présente invention concerne l'utilisation de l'huile de coquille de noix de cajou dans le domaine du recyclage des caoutchoucs et plastiques thermodurcissables. Il est expliqué comment cette matière naturelle peut attaquer et même dissoudre des vulcanisats des pneus de voiture et participer dans leur revulcanisation.
Patent CA-2267244-A1 (CA)
Title: Methods for treating urinary incontinence in mammals
Inventor: WALLACE GEORGE
IPC: A61F2/04
Filed: 1997-10-10
Abstract: Disclosed are methods for treating urinary incontinence in a mammal wherein a composition comprising a biocompatible polymer, a biocompatible solvent, and a contrast agent is delivered to the periurethral tissue of the mammal.
Patent CA-2267354-A1 (CA)
Title: Self tapping screw
Inventor: KONIG GOTTFRIED
IPC: F16B25/00
Filed: 1998-07-28
Abstract: The present invention is directed to a cold-rolled screw intended for screwing into plastic. The screw has a self-tapping thread having thread turns. The thread turns are configured approximately in the manner of knife blades in cross-section. A flank surface of the thread turns has an inwardly directed inflection approximately in the central third forming an outer flank angle of approximately 30 ° between the inflection and the thread crest and an inner thread angle between the inflection and the thread root. The inner flank angle, on average, is essentially equal to or greater than 1/3 of the outer flank angle.
Patent CA-2270703-A1 (CA)
Inventor: CHHINA HARBIR SINGH
IPC: E21B43/16
Filed: 1999-04-29
Abstract: The invention provides processes and apparatus for the recovery of viscous oil from reservoirs by means of generally vertical wells using unheated hydrocarbon solvents.
Patent CA-2270827-A1 (CA)
Title: Pseudorandom binary sequence block shifter
Inventor: CARLETON GREGORY
IPC: H04B1/707
Filed: 1999-05-05
Abstract: A method and apparatus for determining the state, at any time in the past, relative to a present state, of a linear feedback shift register comprises determining a an inverse transition matrix which, if multiplied by the current state in modulo-2 arithmetic, yields the state one step into the past; and multiplying in modulo-2 arithmetic the present state of the linear feedback shift register by the inverse transition matrix N times to obtain the state N steps into the past.
Patent CA-2273932-A1 (CA)
Inventor: XING GUANG-QIAN
IPC: B64G1/10
Filed: 1997-12-04
Abstract: An apparatus and method for orbit control and maintenance techniques for both individual satellites and for multiple satellites in a constellation utilizing Modern Feedback Control for providing precise autonomous on-board navigation and control. This control system can place any satellite in any orbit position in a constellation, including the acquisition of the initial distribution for the constellation after satellite separation from launched vehicles. This system can also maintain distribution within a constellation, including station relocation and station keeping. Utilizing GPS position information, the orbit state vector is determined and modern advanced multivariable feedback control techniques, for example, linear quadratic Gaussian/loop transfer recovery controllers or optimal H-Infinity Robust Controllers are used to design a navigation and control system. The present invention uses a feedback control system designed to attenuate the external perturbations and provide robustness against unstructured uncertainty. The control problem is converted into first a tracking problem and a regulator design problem where the control problem is to minimize both position error and velocity error between the satellite (pursuer) and a nonexistent target satellite in an ideal orbit. The elimination of position error and velocity error result in an optimal orbital control system.
Patent CA-2275461-A1 (CA)
Title: Igniter element, in particular for pyrotechnical mixtures
Inventor: FRANK HARALD
IPC: F42B3/12
Filed: 1997-12-19
Abstract: An igniter element has two contacts (12, 13) which are on the contact side of a support body (11), and which are connected via a resistance element (15). By current feed to the contacts (12, 13), a primer mix (17) is ignited on one active side of the support body (11). The support body (11) is placed in a fixing device (10), whereby the former is fitted with at least one stop spring (18) which catches on a stop shoulder (21) of the holding device. Furthermore, the support body (11) has a recess (22) on the front-side in the region of the stop spring (18), which recess is open in the direction of the active side. After igniting the primer mix (17), pressure builds up on the active side, so that the outer surface (23) of the stop spring (18) is pressed against the inner surface of the fixing device (10).
Patent CA-2276154-A1 (CA)
Title: Nickel-based monocrystalline superalloy with a high .gamma.' solvus
Inventor: CARON PIERRE
IPC: C22F1/10
Filed: 1999-06-22
Abstract: The superalloy according to the invention, suitable for the manufacture of turbo-engine parts by monocrystallization solidification, possesses the following mass composition: Cr : 3.5 to 7.5 % Mo : 0 to 1.5 % Re : 1.5 to 5.5 % Ru : 0 to 5.5 % W : 3.5 to 8.5 % Al : 5 to 6.5 % Ti : 0 to 2.5 % Ta : 4.5 to 9 % Hf : 0.08 to 0.12 % Si : 0.08 to 0.12 % the complement to 100 % consisting of Ni and possible impurities.
Patent CA-2277916-A1 (CA)
Inventor: KIRCHNER GERALD
IPC: C12P41/00
Filed: 1997-05-26
Abstract: The invention concerns an enantioselective process for preparing the (S)-enantiomer of an optically active cyanohydrin by reacting an aldehyde or ketone with a cyanide group donor. According to this process, the aldehyde or ketone is reacted with a cyanide group donor in an organic diluent in the presence of a recombinant (S)-hydroxynitrile lyase from Hevea brasiliensis, the resultant (S)-cyanohydrin being isolated from the reaction mixture.
Patent CA-2279805-A1 (CA)
Title: Valve opening and closing mechanism in engines
Inventor: CHIYOUJI MASAMI
IPC: F01L1/20
Filed: 1999-08-09
Abstract: When a valve 10 is opened, a locking ball 8 moves upward with respect to a rocker arm 3 and the locking ball is located between the rocker arm3 and a push rod 5. The push rod 5 moves downward integral with the rocker arm 3 in a condition the push rod 5 is locked. When a valve 10 is closed, the locking ball 8 moves downward with respect to the rocker arm 3 and the push rod 5 is placed in unlocked condition. A retaining member 3A in the rocker arm 3 contacts the circlip 9 and the push rod 5 moves upward. By this construction, it becomes possible to eliminate adjustment work of tappet clearances and also unfavorable conditions caused by adjustment work of tappet clearances.
Patent CA-2282208-A1 (CA)
Inventor: NADEAU NORMAN GARY
IPC: A47J33/00
Filed: 1999-09-16
Abstract: A kettle and method of using the same. The kettle has a primary compartment and a secondary compartment. There is a cold water inlet into the secondary compartment, a warm water outlet out of the primary compartment, and at least one seepage passage adjacent a bottom of the kettle through which cold water seeps from the secondary compartment into the primary compartment. The kettle is filled with water and heated.      Water is dispensed by adding more water slowly into the cold water inlet of the secondary compartment until water flows out of the warm water outlet of the primary compartment.
Patent CA-2283686-A1 (CA)
Inventor: BLANCHET CHARLES
IPC: E21B33/03
Filed: 1998-03-17
Abstract: The invention concerns a device comprising: a closed housing (4) to be integrated with a wellhead element (16); a lining (3) tightly fixed on the inner wall of the body (1) producing the fluid upstream of the side outlet(s) (2) provided with said valves; a cylindrical partition (9) arranged inside the housing (4) around said lining (3), from which it is separated by a second ring-shaped space (10); first openings (11) provided in the upper portion of the partition (9) above the lining (3); second openings (12) provided in the lower portion of the partition (9); and a filter (13) arranged inside the housing (4) at the periphery of the partition (9) lower portion, opposite the second openings (12), said filter (13) being arranged such that all the fluid entering through the first partition openings (11) the volume separating this partition from the housing outer portion (5) passes through the filter (13) before entering the second ring-shaped volume (10) through the partition second openings (12).
Patent CA-2288050-A1 (CA)
Inventor: KOPKO WILLIAM L
IPC: F24F13/072
Filed: 1998-05-15
Abstract: A system and method for providing conditioned air to the interior space of a building includes separate dehumidification and sensible cooling functions. The separate dehumidification allows for much higher supply air temperatures, preferably within about 10 °F to about 15 °F of the air temperature of the building space. Low-velocity air distribution through a ceiling plenum or a vent into the space allows for very low fan static pressures, which greatly reduces fan energy usage compared to conventional ducted systems. The low static pressures and high supply-air temperatures allow the use of existing drop ceiling construction with little modification. Optional return air channels between an inner glazing and an outer glazing of exterior windows can virtually eliminate heating loads at the building perimeter, which virtually eliminates the need for simultaneous heating and cooling. The result is a major improvement in energy efficiency and comfort while reducing installed cost of the system.
Patent CA-2289478-A1 (CA)
Title: Parameterized image orientation for computer displays
Inventor: BADGER ALAN E
IPC: G06F3/14
Filed: 1999-03-19
Abstract: A system and method accomodate several image orientation modes in a single software driver (208). The driver utilizes the same software instructions for each orientation mode in order to transfer image information to display memory (212). The driver instructions which transfer the image information to display memory utilize parameters to determine where each successive pixel of information goes in the display memory. These parameters are set at the time an orientation mode is selected, and the use of these parameters by the driver allows the same instructions to be used for each mode.
Patent CA-2294389-A1 (CA)
Title: Device for dewatering solid/liquid suspensions, especially pulp suspensions
Inventor: SBASCHNIGG JOHANN
IPC: D21F1/80
Filed: 1998-07-01
Abstract: Devices for dewatering pulp suspensions can be complex and costly. The disclosed device provides a shorter and more simplified design. More specifically, disclosed is a device for dewatering a pulp suspension, wherein the suspension is dewatered between an upper belt and a lower belt, wherein a dewatering zone comprises a wedge-shaped zone formed by the upper belt and lower belt having an inlet end and an outlet end, and wherein a single, upper deflection roll and/or a single lower deflection roll are provided at the inlet end of the wedge-shaped zone.
Patent CA-2296535-A1 (CA)
Title: Antisense oligonucleotide inhibition of ras
Inventor: MONIA BRETT P
IPC: C07K14/82
Filed: 1998-07-06
Abstract: Compositions and methods are provided for the modulation of ras expression.  Oligonucleotides are provided which are targeted to nucleic acids encoding human ras. Oligonucleotides specifically hybridizable with mRNA encoding human H-ras, Ki-ras and N-ras are provided. Such oligonucleotides can be used for therapeutics and diagnostics as well as for research purposes. Methods are also disclosed for modulating ras gene expression in cells and tissues using the oligonucleotides provided, and for specific modulation of expression of activated ras. Methods for diagnosis, detection and treatment of conditions associated with ras are also disclosed.
Patent CA-2297150-A1 (CA)
Inventor: ENDELMAN KEN
IPC: A63B21/045
Filed: 1998-07-22
Abstract: A cushioned exercise apparatus is disclosed which preferably includes a single spring steel band (15) or strap coiled into a plurality of spiral wraps forming a circular ring, and a pair of handles (16) fastened to the ring. This ring and handle assembly is covered with an enclosing, cushioning layer (17) of rubber or elastomeric plastic material substantially enclosing the assembly, forming a hermetic seal around the assembly to prevent moisture from entering into, and damaging the coiled strap ring. The cover also provides a comfortable, cushioning non-slip surface for contact with the user's skin, hands, and/or legs during exercise.
Patent CA-2298767-A1 (CA)
Title: Method and apparatus for washing or hydration of ophthalmic devices
Inventor: SCHLAGEL MARK E
IPC: B29C71/00
Filed: 2000-02-16
Abstract: This invention discloses an apparatus and method for hydrating or washing ophthalmic devices, comprising the step of directing to an ophthalmic device having a higher concentration of impurities fluid which has previously been directed to ophthalmic device having a lower concentration of impurities.
Patent CA-2300510-A1 (CA)
Title: Dispositif pour l'application en meches d'un produit de coloration, et kit de coloration capillaire
Inventor: DE LAFORCADE VINCENT
IPC: A46B5/00
Filed: 2000-03-10
Abstract: Dispositif (1) pour l'application en mèches d'un produit de coloration capillaire, notamment sous forme d'un gel ou d'une crème, ledit dispositif (1) comprenant un réseau de dents (5) implantées sur une face d'application (14), imperméable au produit de coloration, ladite face (14) étant apte à recevoir et à retenir au moins temporairement, le produit à appliquer, et ayant un profil étagé à au moins deux niveaux discrets, de sorte que la mise en engagement de la face d'application avec la chevelure, et son déplacement entre la racine et la pointe des cheveux, génère sur la chevelure, un motif de coloration formé d'au moins deux mèches ayant un degré de coloration différent.
Patent CA-2302967-A1 (CA)
Inventor: MIZUNO MASAKI
IPC: C08L51/06
Filed: 2000-03-29
Abstract: A resin composition for a non-woven fabric-like design which comprises fiber piles of carbonized polyacrylonitrile having a nitrogen content of 10% by weight or more and/or fiber piles of viscose rayon mass-colored with pigments and a process for producing a molded article of a resin having a non-woven fabric-like design which comprises mixing the resin composition with an uncolored resin and molding the prepared mixture. The resin composition can be pelletized with stability and, when the resin composition is mixed with pellets of an uncolored resin and molded, the molded article shows excellent mechanical properties and durability for a long time, exhibits a non-woven fabric-like design with warmth and depth and has an excellent property for recycling.
Patent CA-2303384-A1 (CA)
Title: Systeme de detection d'aliments contamines
Inventor: WOODAMAN JAMES G
IPC: G01N33/558
Filed: 1998-09-15
Abstract: Cette invention concerne un indicateur de contamination des aliments, qui comprend une première couche servant de support imperméable, une deuxième couche et une troisième couche constituée d'un film de revêtement imperméable. La deuxième couche contient un matériau absorbant, qui permet l'écoulement direct de divers jus, un tampon pour une solution "d'immuno-perles", et une zone de détection. La couche capillaire, qui repose sur la couche de support imperméable, est recouverte par la troisième couche en film de revêtement imperméable: de cette manière, la couche capillaire réside entre la couche de support imperméable et la troisième couche en film de revêtement imperméable.
Patent CA-2306497-A1 (CA)
Inventor: BRAAD POUL ERIK
IPC: F16L33/01
Filed: 1997-10-14
Abstract: An assembly of an end-fitting (9), having an axial extending through opening (14), with a flexible pressure pipe (1) which is of a non-bonded structure comprising a number of layers (2, 3, 4, 5, 7) including an inner carcass (2) of an interlocking structure made from metallic strips (23) forming a screwthread, an end part of which extends, in the assembled condition, into the through opening (14). The assembly comprises an annular holding groove (28) which is formed in the wall of the through opening (14), and a lock nut (15). The metallic strips (23) form a thread (24) with windings (25). When the pipe (1) is to be assembled with the end-fitting (9) the carcass (2) is exposed by initially removing the layers (3, 4, 5, 7) surrounding the carcass (2) at the end of the pipe (1), whereafter the lock nut (15) is screwed on to the end of the carcass. Finally the carcass (2) is inserted into the through opening (14) with the lock nut (15) placed in the holding groove (28) formed in the wall of the through opening (14). In some applications the lock nut (15) can also be embedded in a casting material (not shown), e.g. epoxy, for fixing the lock nut firmly in the holding groove. The joint between the carcass (2) of the flexible pressure pipe (1) and the end-fitting (9) is a simple and cheap structure and provides a greater resistance to axial tensile loads acting on the carcass (2) and against unwinding than has been known before.
Patent CA-2307123-A1 (CA)
Inventor: NAQUI ALI
IPC: B01L3/00
Filed: 1998-10-27
Abstract: Method and assay devices for the detection of the presence or amount of biological material, analyte(s), or microorganism(s) in a sample. The method includes the steps of liquefying the sample (if necessary) and distributing the liquefied sample over the surface of the assay device. The device may comprise an incubation plate, a dip stick device, or other devices. The devices have at least one reagent provided within the devices. Some devices have a generally flat horizontal surface which is divided into a plurality of recessed wells. Others have one or more surfaces with reagent island(s) immobilized thereon. Each well or reagent island is adapted to hold an aliquot of liquid. The wells or reagent islands are sized and shaped, and formed of a suitable material, to hold the aliquot within the well or reagent island by surface tension. Any excess liquid from the liquefied sample is drained from the surface of the device. The method then involves incubating the assay device until the presence or amount of the biological material, analyte, or microorganism is determined.
Patent CA-2307772-A1 (CA)
Inventor: FRIMAN LEIF
IPC: H04W88/18
Filed: 1998-11-11
Abstract: The present invention relates to a mobile communication system comprising a mobile services switching center, a base station and a transcoder. The transcoder receives from the base station frames containing speech parameters, and from the mobile services switching centre speech signals which it encodes into speech parameters to be transmitted to the base station in the frames. To enable the cooperation between the transcoder and the base station to be controlled as simply as possible, the mobile communication system comprises a base station controller for transmitting predetermined control information to the base station, whereby base station is arranged to control the operation of the transcoder via the telecommunication connection in response to the reception of the control information.