baber/WOPTO huggingface dataset:
Patent CA-2191471-A1 (CA)
Title: System and method for conditioning a radiation detector
Inventor: NELSON OWEN L
IPC: G01T1/24
Filed: 1995-04-27
Abstract: A system (10) and method for conditioning a photoconduc-tive radiation detector (12) achieve charge redistribution within a photoconductive layer (16) without the need for charge removal or charge injection techniques. A first conditioning voltage is ap-plied (46) across the detector to establish a first electric field. The first electric field is reversed relative to fields applied to the detec-tor during image exposure and image read-out operations. While the first conditioning voltage is maintained, the photoconductive layer is exposed for a period of time to first conditioning radiation (48) having one or more wavelenghts selected to penetrate at least a portion of the photoconductive layer (16). A second condition-ing voltage, less than the first conditioning voltage, then can be optionally applied (50) across the detector to establish a forward bias electric field. While the second conditioning voltage is main-tained, the photoconductive layer (16) is exposed for a period of time to second. Broad spectrum conditioning radiation (52). The detector (12) can then be placed in a dark environment for a period of time, in a shorted condition, to dark-adapt the photoconductive layer (54).
Patent CA-2194970-A1 (CA)
Inventor: BERGMANN OSWALD ROBERT
IPC: C09D5/24
Filed: 1995-08-01
Abstract: L'invention concerne un produit et un procédé se rapportant à des poudres électroconductrices à base d'oxyde stannique dopé au tantale, niobium, ou bien au phosphore ou une quelconque association de ceux-ci, et des revêtements contenant de telles poudres. Ces poudres s'utilisent pour fabriquer des films revêtus transparents qui sont conducteurs et présentent les caractéristiques souhaitées pour un certain nombre d'applications finales. Certaines applications finales importantes sont constituées par les fibres et les films dissipant l'électricité statique, les revêtements destinés aux récipients recyclables, les matériaux mis en oeuvre dans le conditionnement, où la présence de certains métaux lourds n'est pas souhaitable, ainsi que les revêtements conducteurs transparents, entre autres applications.
Patent CA-2198895-A1 (CA)
Title: Transmission d'une base de donnees electroniques d'informations
Inventor: KRETZ CHRISTOPH
IPC: G06F17/30
Filed: 1996-06-21
Abstract: Procédé et agencements de transmission et de réception d'une base de données électroniques, par exemple un guide d'émissions de télévision électronique. La base de données comprend une pluralité de rubriques d'émissions. Afin d'aider l'utilisateur à extraire les rubriques présentant un intérêt, une structure de menu est également transmise. La structure de menu rend possible l'accès à la base de données de diverses manières. Au lieu de comprendre des rubriques d'émissions (tels que des systèmes de télétexte sous forme connue), les menus transmis se rapportent à des rubriques d'émissions. Lorsque cela est nécessaire, des références peuvent être faites à des informations relatives à des émissions, transmises par différentes stations de TV.
Patent CA-2199730-A1 (CA)
Title: Protection of hemopoietic cells during chemotherapy or radiotherapy
Inventor: BOGDEN ARTHUR E
IPC: A61K38/08
Filed: 1995-09-12
Abstract: A method of promoting regeneration of hemopoietic cells in a subject undergoing chemotherapy or radiotherapy, which method includes the steps of (i) administering to the subject a first amount of a hemopoiesis inhibitory factor, the first amount being effective to reduce the proliferation of hemopoietic cells during the chemotherapy or radiotherapy; and (ii) after the chemotherapy or radiotherapy, administering to the subject a second amount of a hemopoiesis growth factor, the second amount being effective to stimulate the proliferation of hemopoietic cells.
Patent CA-2200945-A1 (CA)
Title: Wax hydroisomerization process
Inventor: DOUGHERTY RICHARD CHARLES
IPC: C10G73/38
Filed: 1995-10-13
Abstract: This invention discloses a process for producing a high Viscosity Index lubricant having a viscosity of at least 125 from a waxy hydrocarbon feed having a wax content of at least 40 wt%. The process comprises catalytically dewaxing waxy paraffins present in the feed primarily by isomerization, in the presence of hydrogen and in the presence of a low acidity large pore zeolite molecular sieve having a crystal size of less than 0.1 micron, an alpha value of not more than 30 and containing a noble metal hydrogenation component. The large pore zeolite is preferably zeolite beta loaded with 0.3 to 2 wt% Pt. The feed may be hydrocracked prior to dewaxing with the large pore zeolite. The effluent of the process may also be further dewaxed by either solvent or catalytic means in order to achieve target pour point. The products obtained from the process of the present invention are high VI, low point materials obtained in high yield. These products are highly stable, both oxidatively and thermally and to ultraviolet light. Improved product yields are obtained.
Patent CA-2201074-A1 (CA)
Title: Liquid feeding apparatus
Inventor: UKENA YUUJI
IPC: F04C5/00
Filed: 1997-03-26
Abstract: A liquid feeding apparatus quantitatively feeds a liquid by pressing and clogging an elastic tube between a press roller and an arc-shaped guide portion through rotational motion of the press roller. The liquid feeding apparatus includes a main unit in which the press roller is provided, and a liquid cassette which accommodates a liquid cartridge. One end of the elastic tube is connected to a reservoir for the liquid to be fed, and the other end is connected to a check valve. The liquid cassette is removably fitted to the liquid feeding apparatus so that the elastic tube is subject to pressing action of the press roller.
Patent CA-2208197-A1 (CA)
Inventor: ISTED ROBERT EDWARD
IPC: E21B43/24
Filed: 1997-06-18
Abstract: A  method  and  apparatus  for  subterranean  thermal conditioning.   The first step involves providing a tubular magnetic  induction  apparatus.    The  second  step  involves positioning  the  magnetic  induction  apparatus   into  a subterranean environment.  The third step involves supplying voltage waves to the magnetic induction apparatus thereby inducing a magnetic field in and adjacent to the magnetic induction apparatus to thermally condition the subterranean environment. This method and apparatus has application in the petroleum and mining industries.
Patent CA-2213958-A1 (CA)
Title: Tris-aryl s-triazines substituted with biphenylyl groups
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C08K5/3492
Filed: 1997-08-25
Abstract: Selected s-triazines of formula I           (See Fig. I) where G1 and G2 are biphenylyl moieties, are UV absorbers having high thermal stability and surprisingly high extinction coefficients making them of especial interest in stabilizing automotive coatings where such properties are highly valued.
Patent CA-2216543-A1 (CA)
Inventor: ROBERTS JOHN D
IPC: E21B47/09
Filed: 1996-04-01
Abstract: A milling tool (110) is provided with a valve member (122) which can be displaced to inhibit the flow of drilling fluid through the milling tool (110). A whipstock (150) is provided with a stop (155) which the valve member (122) engages as the milling tool (110) moves down the whipstock (150). Further downward movement of the milling tool (110) relative to the whipstock (150) displacing the valve member (122) relative to the milling tool (110) and inhibits the flow of drilling fluid therethrough. This results in a decrease in flow and increase in pressure at the mud pumps signifying that milling should cease. If the milling tool (110) is being driven by a mud motor (156) which exhausts through the milling tool (110) the mud motor (156) will stop when the flow through the milling tool is inhibited.
Patent CA-2217081-A1 (CA)
Inventor: PINARD DEBORAH L
IPC: H04M1/247
Filed: 1997-09-30
Abstract: A method of indicating to a user of a terminal which includes a display, of the occurrence of a function which can be implemented on the terminal, comprising displaying a cursor on the display which cursor is moveable by the user and which has a form and position on the display which is related to a program currently being used by the user and which is unrelated to the function, and changing the form of the moveable cursor at the position to one which relates to the function upon occurrence of the function.
Patent CA-2217197-A1 (CA)
Title: Novel heterocyclic compounds
Inventor: KAREL SINDELAR
IPC: C07D223/28
Filed: 1996-04-01
Abstract: A compound of formula (I) in which Z is selected from (a), (b), (c), (d), (e), (f), (g), (h), (i), (j), and (k). The present invention relates to novel Nsubstituted azaheterocyclic carboxylic acids and esters thereof in which a substituted alkyl chain forms part of the N-substituent or salts thereof, to methods for their preparation, to compositions containing them, and to their use for the clinical treatment of painful, hyperalgesic and/or inflammatory conditions in which C-fibers play a pathophysiological role by eliciting neurogenic pain or inflammation.
Patent CA-2218198-A1 (CA)
Inventor: GALLAGHER PATRICK J
IPC: F41H11/12
Filed: 1997-10-14
Abstract: A detector for detecting detonatable devices such as land mines has a a search head with a probe having a tip for placing beneath the surface of the ground. The probe tip ultrasonically provides an indication of the presence of a metal or plastic material. A force sensor coupled to the probe time provides an indication of force at the tip as it is placed beneath the ground surface. Therefore, before too much force is applied to the tip, a user is warned and accidental detonation may be prevented.
Patent CA-2218952-A1 (CA)
Title: Closure assembly for a tank filler neck
Inventor: FOLTZ DEAN C
IPC: B60K15/04
Filed: 1997-10-15
Abstract: A filler neck closure assembly (10) is provided for a vehicle fuel tank filler neck (12).  The filler neck closure assembly (10) includes a housing (35) configured to mount in the filler neck (12) and formed to include a sealing surface (124).  A pressure-relief valve (40) is positioned to lie in the housing (35).  The pressure-relief valve (40) includes a nozzle-receiving portion (133) and a sealing portion (135).  The nozzle-receiving portion (133) is formed to include a nozzle-receiving opening (154) that receives a pump nozzle (24) during refueling of the fuel tank (14).  The sealing portion (135) is movable relative to the housing (35) between a closure-sealing position sealingly engaging the sealing surface (124) and a pressure-relief position away from the sealing surface (124) to define an opening therebetween to vent fuel vapor (238) from the fuel tank (14) when tank pressure exceeds a predetermined maximum pressure.  The nozzle-receiving portion (133) is configured to move with the sealing portion (135).
Patent CA-2221010-A1 (CA)
Title: Matrix material comprising several bio-active materials
Inventor: BOS JOHANNES JACOBUS GERARDUS
IPC: A61K47/48
Filed: 1997-11-13
Abstract: A matrix material provided with a number of bio-active materials, in particular drugs, comprises a substrate, polyethyleneimine coupled to the substrate and several bio-active materials adhering to the polyethyleneimine and/or substrate.
Patent CA-2221195-A1 (CA)
Inventor: HOLY CHANTAL ELIZABETH
IPC: A61K47/34
Filed: 1997-11-14
Abstract: A polymer matrix is provided comprising an extensively interconnected macroporous network. The polymer matrix embodies macropores having a diameter of in a range of 0.5-2.25 mm, and preferably in a range of about 1.0-2.0 mm. The polymer matrix is prepared using a novel process which advantageously combines the techniques of particulate leaching and phase inversion to render a process that provides amplified means by which to control the morphology of the resulting polymer matrix. The polymer matrix has utility in the area of tissue engineering, particularly as a scaffold for both in vitro and in vivo cell growth.
Patent CA-2221864-A1 (CA)
Title: Controle de constituants du sang par impulsions actives
Inventor: DIAB MOHAMED KHEIR
IPC: A61B5/1455
Filed: 1996-06-04
Abstract: L'invention se rapporte à un système de contrôle de la glycémie (100), qui permet d'induire une impulsion active dans la circulation sanguine d'un patient. L'induction de cette impulsion se traduit par une modification cyclique et périodique du courant sanguin dans un milieu constitué de chair (310) placé sous contrôle. En induisant activement une modification de la circulation sanguine, il est possible de moduler le volume de sang afin d'entraîner une augmentation du rapport signal/bruit. Cela permet de détecter les constituants du sang à des niveaux de concentration inférieurs aux niveaux décelés antérieurement avec un système non invasif. Le rayonnement qui traverse le milieu constitué de chair est décelé par un détecteur (320) qui engendre un signal indiquant l'intensité du rayonnement décelé. Un traitement est appliqué aux signaux électriques afin d'isoler les charactéristiques optiques des signaux électriques en question qui sont imputables aux charactéristiques optiques du sang.
Patent CA-2223536-A1 (CA)
Title: Apparatus and method for attaching a labeled probe and/or antibody to micromolecules
Inventor: SCHMID PETER
IPC: C12Q1/68
Filed: 1995-06-05
Abstract: An apparatus and method for attaching a labeled probe to macromolecules such as DNA/RNA fragments or proteins attached to a membrane utilizes a flexible bag having an inlet and an outlet port. Reagents including the probe to which the membrane is to be exposed during the labeling process are stored in reservoirs. Pumps are provided to selectively transfer reagents from reservoirs to the inlet port and for selectively evacuating the bag via the outlet port so that reagents from the individual reservoirs can be sequentially supplied to or removed from the bag while the membrane is positioned therein. One or more rollers are arranged to roll back and forth over the top of the bag to uniformly expose the membrane to the reagent within the bag.
Patent CA-2226314-A1 (CA)
Title: Method for absorbing gaseous oxidisable or reducible constituents through a membrane
Inventor: FERON PAUL HUBERT MARIA
IPC: B01D53/52
Filed: 1996-07-05
Abstract: The invention relates to a method for removing gaseous oxidisable constituents from a gas phase, wherein the oxidisable constituents are absorbed in a liquid phase which contains an oxidising agent for the gaseous oxidisable constituents, the gas phase and the liquid phase being fed on either side along a membrane which is permeable to the constituents to be absorbed. The invention also relates to a method for performing membrane gas absorption, wherein the gas phase contains at least one gaseous oxidisable constituent, the liquid phase contains at least one oxidising agent, such that at least one of the oxidisable gaseous constituents is absorbed into the liquid phase, an oxidation/reduction reaction between the gaseous constituents and the oxidising agent taking place in at least one step. The invention is preferably employed in the removal of ethene during the storage of fruit, the removal of mercury (vapour) from natural gas and the removal of H2S, at concentrations of 0.001-10 mg/m3. The membranes are preferably in the form of hollow fibres.
Patent CA-2226664-A1 (CA)
Inventor: SKINN NEIL C
IPC: G10D3/14
Filed: 1996-07-12
Abstract: La présente invention concerne un système d'afficheur destiné à un instrument à corde s'accordant automatiquement, l'afficheur donnant individuellement ou simultanément la fréquence de chaque corde de l'instrument. Chaque corde est pourvue d'un transducteur (26) délivrant à un processeur (50) un signal lui permettant de déterminer la fréquence mesurée. A partir de la fréquence mesurée, le processeur (50) génère en outre un signal d'afficheur et un signal de commande d'actionneur. Cet actionneur (90) est commandé par le signal de commande d'actionneur, l'afficheur (72) étant commandé par le signal d'afficheur. Ce système permet d'utiliser l'afficheur (72) pour faire un accordage initial de l'instrument dans les limites de fonctionnement du système d'accordage automatique.
Patent CA-2227072-A1 (CA)
Title: Two-layer intellectual cube
Inventor: CHEN SEN LI
IPC: A63F9/08
Filed: 1998-01-14
Abstract: A two-layer intellectual cube composed of eight movable smaller blocks, each side thereof is divided horizontally and vertically into four areas with different paterns or colors; these smaller blocks can be rotated to change their orientations, so that every side of the intellectual cube can be varied in combination, and this can arouse brains of human to get an intellectual enhancing effet. The feature of such structure is that, the interior portion of a smaller movable block is taken as a reference smaller block which has a triangular axle seat extending from the inner end thereof, an arciform raised rail is provided on the wider area of every one of three surfaces of the triangular axle seat which is provided on the corner formed by three surfaces thereof with three mandrels pivotally provided each with a rotatable block, a receiving space is formed between every rotatable block and its corresponding raised rail to receive many outer anti inner slidable blocks, so that these slidable blocks can be displaced revolvingly about a corresponding mandrel along the track of the corresponding raised rail, in which, each outer slidable block is provided on an outer end thereof with a seat block, and when an outer housing block is provided on each of the smaller movable blocks, the two-layer intellectual square cube is completed. In this way, the present invention can reduce complexity and especially suits little learning children in playing.
Patent CA-2229031-A1 (CA)
Title: Aqueous blends of colloidally dispersed polymers
Inventor: ANDREWS GERALD DONALD
IPC: C09D133/12
Filed: 1996-07-31
Abstract: The invention pertains to aqueous blends of colloidally dispersed polymers for use in making organic coatings which are hard and ductile at ambient temperature, which coatings remain stiff and elastic at temperature well above their film-formation or drying temperature. In particular, the invention relates to specific combinations or thermoplastic blends of polymers of very high molecular weights. Such blends produce smooth, essentially crack-free coatings when dried conventionally under atmospheric pressure. Such blends are capable of developing the desired balance of properties without conventional amounts of volatile organic coalescing aids and without the need for chemical cure.
Patent CA-2231134-A1 (CA)
Title: Control system for separately excited dc motor
Inventor: LANKIN ROBERT
IPC: H02P7/29
Filed: 1997-07-08
Abstract: A microprocessor based control system generates optimal field and armature currents for a separately excited DC motor. The current levels for the field and armature coils are set by feedback control. Armature and field current setpoints are established in accordance with tabulated values selected for providing a required torque and speed in an optimal fashion. A table of corresponding values of armature voltage is also maintained. If the actual armature voltage is below the calculated value, then the field current setpoint is boosted by an amount sufficient to optimize output torque.
Patent CA-2234725-A1 (CA)
Title: Infusion coil apparatus and method for delivering fluid-based agents intravascularly
Inventor: BROWN JOE E
IPC: A61N5/10
Filed: 1996-10-16
Abstract: This invention is an infusion coil apparatus and method for delivering fluid based diagnostic and therapeutic agents intravascularly in which an infusion coil (10) is placed in an artery or other vessel at a diseased location, and then fluid based agents are delivered through the infusion coil to that specific location. The infusion coil apparatus includes a resilient fiber core (12) enclosed in a soft, hollow polymer tubing (15). The resilient fiber core has a pre-shaped coil at one end that overcomes the susceptibility of the infusion coil to become uncoiled while permitting a construction of the infusion coil having a very small diameter. The polymer tubing is radiopaque and has a soft surface for engaging the inside of a vessel. The infusion coil is deployed by a deployment device (17) at a specific site in a vessel to be treated. Once at the delivery site, the deployment device ejects the infusion coil out of a delivery sheath into the vessel. The infusion coil is perforated (16) so that fluid based agents can be delivered through the infusion coil to the site adjacent the wall of the vessel. Variations in the shape of the coil and in the deployment devices are disclosed.
Patent CA-2236356-A1 (CA)
Inventor: GIARDINO DAVID A
IPC: B25F5/00
Filed: 1998-04-29
Abstract: The invention is a pneumatic tool with a reverse valve having an overdrive. In particular, the pneumatic tool includes a housing, a rotor, rotatably mounted within the housing, an output shaft operatively coupled to the rotor, and pressure chambers defined between the housing and the rotor. A pneumatic reverse valve having an overdrive is operatively coupled to the rotor. The overdrive provides increased torque and increased speed to the output shaft. The reverse valve controls flow of pressurized air to a multi-chambered motor of the tool such that the direction of the motor can be reversed and the number of pressure chambers receiving pressurized air can be selected regardless of direction.
Patent CA-2236378-A1 (CA)
Title: Recombinant sendai virus
Inventor: NAGAI YOSHIYUKI
IPC: C12N5/10
Filed: 1996-10-22
Abstract: A method for reconstituting Sendai virions which comprises introducing the genome of Sendai virus into a host wherein all of the early replication genes have been expressed. This method enables gene manipulations of Sendai virus and thus makes it possible to utilize Sendai virus efficiently as a vector.
Patent CA-2238109-A1 (CA)
Title: Stent deployment device with two balloons
Inventor: BURGMEIER ROBERT E
IPC: A61F2/06
Filed: 1998-05-20
Abstract: A stent delivery device [10] having a pair of balloons [32, 34] at a proximal end of a catheter [12] and having separate lumens [24, 26] for selectively inflating the respective balloons. The outer balloon [34] is relatively compliant and the inner balloon [32] is relatively non-compliant. A central lumen [28] is provided for a guide wire [30]. A stent [36] is carried by the delivery device within an axially retractable sheath [14] at the distal end of the catheter [12] and is deployed by retraction of the sheath [14] and inflation of the compliant balloon [34], and the stent [36] is subsequently expanded by inflation of the non-compliant balloon [32].