baber/WOPTO huggingface dataset:
Patent CA-2198005-A1 (CA)
Title: Pyrazolo[3,4-g]quinoxaline compounds which inhibit pdgf receptor protein tyrosine kinase
Inventor: MYERS MICHAEL R
IPC: A61K31/495
Filed: 1995-09-06
Abstract: This invention relates to pyrazolo[3,4-glquinoxaline compounds exhibiting protein tyrosine kinase inhibition activity. More specifically, compounds of this invention are novel as selective inhibitors of the PDGF-R protein tyrosine kinase and can be applied as potential therapeutic agents for various disease states which are characterized by uncontrolled cellular proliferation. Further, the present invention provides pharmaceutical compositions and a method for treating such disorders comprising the administration to a patient of a PDGF receptor inhibiting effective amount of a pyrazolo[3,4-g]quinoxaline compound exhibiting protein tyrosine kinase inhibition activity.  Processes for the preparation of pyrazolo[3,4-g]quinoxaline compounds.
Patent CA-2200373-A1 (CA)
Title: Heteroligand
Inventor: SPENCE RUPERT EDWARD VON HAKEN
IPC: C08F4/659
Filed: 1997-03-19
Abstract: A new family of metallacycles, which are preferably zirconacycles, is characterized by having a unique halogenated substituent. The metallacycles are useful for the preparation of main group heterocycles, especially two novel families of heterocycles. The first new family of heterocycles preferably contains a halosilyl substituent. A preferred group of the second family of novel heterocycles contains a silyl group having a leaving group bonded thereto. The preferred group of these heterocycles is suitable for preparing novel organometallic complexes having a bridged bidentate heterocyclic ligand. These novel organometallic complexes may be used as catalyst components in olefin polymerization. The subject catalyst components are particularly well suited for use in the medium pressure solution process to prepare linear low density polyethylene.
Patent CA-2204871-A1 (CA)
Title: Methods for modulating transcription from the amyloid .beta.-protein precursor (app) promoter
Inventor: TANZI RUDOLPH E
IPC: A61K38/00
Filed: 1995-11-09
Abstract: The application concerns methods for modulating transcription from the amyloid .beta.-protein precursor (APP) promoter. The upstreaam stimulatory factor (USF) is described as being capable of activating transcription from the APP promoter. Also described are USF binding compounds which are capable of downregulating expression from the APP promoter. Preferred USF binding compounds are the amyloid precursor-like proteins APLP1 and APLP2. The application further concerns a screening assay for determining which candidate USF binding compounds are capable of causing down-regulation of transcription from the APP promoter.
Patent CA-2207755-A1 (CA)
Title: A drilling method and bit assembly to realize the method
Inventor: ILOM KI VALTO
IPC: E21B/
Filed: 1995-12-13
Abstract: A method to drill a hole in the soil by a bit assembly and a bit assembly comprising a ring-shaped bit (2) to drill the outer circle of the hole and to which a protection tube system (4), mounted in the hole while drilling, is coupled, and a cylindric inner bit (1) to drill the center portion of the hole, from which bit at least the rotative motion is transmitted to the outer bit (2). Drilling by the outer bit (2) and pulling out the protection tube (4) are disconnected upon need by reverse rotation of the inner bit, whereafter drilling is continued with the inner bit (1) only.
Patent CA-2208081-A1 (CA)
Inventor: WILSON NATHANIEL B
IPC: H04B1/40
Filed: 1995-12-19
Abstract: A dual-mode digital communication system for communicating an information signal during operation in frequency-modulated (FM) and multiple-access modes is disclosed herein. The digital communication system includes a dual-mode transmitter (14) for transmitting the information signal using an FM communication signal during FM mode operation, and for transmitting the information signal using a multiple-access communication signal during multiple-access mode operation.  The communication system further includes a dual-mode receiver (16) for receiving the FM communication signal during FM mode operation, and for receiving the multiple-access communication signal during multiple-access mode operation. Incorporated within the dual-mode receiver (16) is a digital demodulator (96) for recovering the information signal from the received FM signal during operation in the FM  mode, and for recovering the information signal from the received multiple-access signal during multiple-access mode operation.
Patent CA-2208360-A1 (CA)
Title: Surgical clip with ductile tissue penetrating members
Inventor: YOON INBAE
IPC: A61B17/064
Filed: 1995-12-21
Abstract: A surgical clip (10) for constricting anatomical vessels and organs includes at least two generally opposed arms (16, 18) extending from opposite end of a base member, a plurality of apertures (36) formed in one of the arms, and a plurality of ductile tissue penetrating members carried by the other arm in opposed relation to the apertures.
Patent CA-2208993-A1 (CA)
Inventor: OBITTS SHANE
IPC: A61H3/02
Filed: 1997-06-27
Abstract: A patient support device, particularly a cane, includes a fifth leg that extends outwardly from a central portion of a base assembly at a region intermediate the first,  second,  third,  and fourth legs.   The fifth leg provides increased balance and stability for the user. Moreover, the base assembly includes a one-piece member constructed from a molded plastic composite material to reduce manufacturing costs.  Additionally, the fifth leg is slightly recessed relative to the remaining four legs so that the patient's weight is evenly distributed to the perimeter of the support area defined by the base member.
Patent CA-2209356-A1 (CA)
Title: Electromagnetic valve
Inventor: ZABECK SEBASTIAN
IPC: F16K31/06
Filed: 1997-06-27
Abstract: An electromagnetic valve, especially for use in connection with an internal combustion engine includes a housing enclosing a coil, an armature guided in the coil, and a spring-operated valve body cooperating with the armature through an intermediate valve plunger.  On the side opposite the coil, the valve body includes a bulge which engages the coil in the fully opened condition of the valve to seal the gap between the armature and the coil.  This prevents infiltration of contaminants into that gap, making the valve more reliable and durable.
Patent CA-2209474-A1 (CA)
Inventor: KING DANIEL N
IPC: C07C29/141
Filed: 1996-01-17
Abstract: A dilute ethylene stream, e.g., one produced by steam cracking, is oxonated to yield propanal, without the need to separate other lower hydrocarbons.
Patent CA-2211152-A1 (CA)
Inventor: MAMMONE RICHARD J
IPC: G02B27/22
Filed: 1996-08-05
Abstract: On crée un microscope, dont l'ouverture numérique présente une efficacité élevée, au moyen d'un dispositif dans lequel on obtient une image réelle tridimensionnelle d'un objet (E) placé dans une ouverture (20a) au niveau du sommet de l'un de deux miroirs concaves opposés et alignés axialement (20, 10). Cette image tridimensionnelle est acquise par une caméra vidéo (50) positionnée dans une contre-ouverture (10a) au niveau du sommet de l'autre miroir et l'image acquise est traitée par ordinateur (101). Le traitement corrige l'image acquise au moyen d'une réponse impulsionnelle du système de miroirs obtenue précédemment en positionnant une source ponctuelle de lumière à travers l'espace de l'objet et en mesurant les valeurs de pixel enregistrées par l'ensemble d'éléments de détection de la caméra, tandis que la caméra était placée à différentes distances axiales dans le plan de l'image.
Patent CA-2214780-A1 (CA)
Inventor: HARTLEY JOHN B
IPC: H01K1/28
Filed: 1996-03-05
Abstract: Cette invention concerne une ampoule luminescente pouvant être utilisée avec un système de vision nocture, laquelle ampoule compore un filament incandescent enfermé dans une enveloppe de verre qui ne transmet pratiquement aucune quantité de lumière détectable à une longueur d'onde supérieure à 700 nanomètres.
Patent CA-2215113-A1 (CA)
Title: Railway brake assembly with multiple air cylinder
Inventor: BAREFOOT RICHARD
IPC: B61H1/00
Filed: 1996-04-02
Abstract: Braking apparatus for a vehicle having a plurality of wheels (7, 8, 9, 10) and brakes shoes (12a, 12b) engageable with the wheels (7, 8, 9, 10) which apparatus includes a cylinder and piston assembly (16) including at least two pistons (19, 21) movable in opposite directions by fluid under pressure supplied intermediate the pistons (19, 21) and at least one fixed partition (24, 27) between the pistons (19, 21). The pistons (19, 21) are connected to the brake shoes at opposite ends of the cylinder and piston assembly (16) by piston rods (23, 31, 35) and levers (36, 38).
Patent CA-2216828-A1 (CA)
Title: Controlled release insufflation carrier for medicaments
Inventor: BAICHWAL ANAND R
IPC: A61K9/48
Filed: 1996-04-04
Abstract: Controlled release powder insufflation formulations are disclosed. The powder formulation includes cohesive composites of particles containing a medicament and a controlled release carrier which preferably includes one or more polysaccharide gums of natural origin.
Patent CA-2216932-A1 (CA)
Title: Disinfectant
Inventor: LEMBKE FRITZ
IPC: A01N25/02
Filed: 1996-03-29
Abstract: The disclosure relates to a water-free alcohol disinfectant capable of destroying spores. Preferably, the disinfectant also contains an additional chemical sterlisation agent, e.g. hydrogen peroxide, in very low concentrations within the range of between 0.5 and 3.0 percent of the weight of the alcohol solution. The disinfectant is usable in industrial contexts for bacteriological cleaning of surfaces, for example inner walls in pipelines, conduits, reaction vessels and other process equipment, without corroding or chemically attacking the material in such surfaces.
Patent CA-2217533-A1 (CA)
Title: Device for regulation of tension
Inventor: PEDERSEN KURT
IPC: B60P7/16
Filed: 1996-04-09
Abstract: There is disclosed an arrangement of securing elements (14) for regulating tension forces in the element (14), where the securing element (14) comprises a number of separate part-elements (16, 18) extending substantially mutually in parallel, and a tension-regulating body is arranged between the part-elements (16, 18) so that the part-elements surround the body, such as forming a substantially oval form about the body (24), whereby the body counteracts movement of the part-elements (16, 18) towards each other during the effects of tension in the element (14). The arrangement is characterised in that the tension-regulating body comprises a solid block (24) of a partially elastic material, that the block (24) comprises mutually distinct bores (20, 22), and that the part-elements (16, 18) are arranged extending each through its respective bore (20, 22). The arrangement is especially suited for securing freight to loading areas on vehicles and decks of vessels.
Patent CA-2218518-A1 (CA)
Title: Slip free vertical rack design
Inventor: TOMANOVICH JOHN A
IPC: H01L21/324
Filed: 1996-05-03
Abstract: The present invention relates to a vertical rack for supporting a plurality of semiconductor wafers in a spaced, substantially horizontal, parallel relation, the vertical rack comprising: a) a vertical support means, and b) a plurality of vertically spaced, horizontal support means extending substantially horizontally from the vertical support means to define a plurality of support levels for supporting the wafers, wherein the horizontal support means are projections, each projection comprising an arm terminating in a wafer platform such that the innermost contact between at least one wafer platform of each support level and its supported wafer is in the region of between 20% and 80% of the wafer radius, measured from the edge of the wafer, and wherein the arm projects at a continuous upward incline and terminates in the wafer platform.
Patent CA-2223141-A1 (CA)
Title: Method and apparatus for signal classification using i/q quadrant histogram
Inventor: FOX MICHAEL W
IPC: H04L27/00
Filed: 1996-05-17
Abstract: An efficient method and apparatus for determining, recording, and analyzing the phase history of a Line-in signal. The Line-in signal is coupled to a conventional demodulator. I and Q components are output by the conventional demodulator and coupled to an IQ quantizer. The IQ quantizer determines a quadrant on an I/Q plot from the amplitude of each component. A histogram is generated which indicates in which quadrant the Line-in signal was for a first sample, and in which quadrant the Line-in signal was for a second sample, the second sample having been taken immediately after the first sample. From this histogram, the number of times the Line-in signal transitions from one quadrant to another over a predetermined period of time is known. If the number of times the input signal crosses one of the axis of the I/Q plot in a first directgion is greater than the number of times the input signal crosses that axis in the opposite direction, then the frequency of the Line-in signal differs from the frequency of the In-phase reference signal and the Quadrature reference signal. The frequency of the Line-in signal is directly related to the difference between the number of times the signal crosses an axis of the I/Q plot in a first direction, minus the number of times the signal crosses that axis of the I/Q plot in the opposite direction. The present invention also determines whether the Line-in signal represents a particular signaling pattern, such as the well-known AA pattern defined in the V.32 standard.
Patent CA-2224195-A1 (CA)
Inventor: WINOWISKI THOMAS STEPHEN
IPC: A23K1/18
Filed: 1996-06-05
Abstract: A ruminally inert fat for a ruminant feed is made by applying reducing sugars to oilseed meats and heating to induce non-enzymatic browning. The process is controlled to ensure penetration of the reducing sugars into the interior of cracked oilseed meat prior to browning. The browning reaction renders the protein which surrounds the oil resistant to rumen bacterial degradation to thereby encapsulate the oil in a protective matrix.
Patent CA-2224255-A1 (CA)
Inventor: EAKIN GEORGE R
IPC: A01K1/00
Filed: 1996-06-05
Abstract: A ventilation inlet (10) includes a housing having two air inlets apertures (28, 30), a solid wind-deflecting rear wall (20), and a baffle supported for pivotal movement about a pivot point. A spring (26) or other biasing mechanism is operatively connected to the baffle (22). Air entering the housing opens the baffle (22) and enters the livestock confinement building. The baffle (22), positioned responsive to the amount and pressure of air entering the housing, directs the flow of air into the confinement space so as to optimize the speed and direction of the external fresh air entering the confinement space. The design of the ventilation inlet (10) is optimized by calculating the necessary operators required to enable the baffle (22) to properly respond to the incoming air.
Patent CA-2226272-A1 (CA)
Inventor: ROBITAILLE ARMAND
IPC: F03D3/00
Filed: 1998-03-19
Abstract: Une éolienne 20 bâtie selon un axe vertical 30 et comprenant une turbine 22 flottant sur une fondation 24 érigée dans un cratère entouré d'un monticule 36. La turbine 22 comprend un nombre de pales 32 semi-circulaires unissant des cônes supérieur 28 et inférieur 42 de façon à créer une chambre annulaire 56. Cette turbine 22 repose sur une flotte 50 qui peut être emplie d'eau de ballastage 64 pour alourdir et donner plus de torque à la turbine. La fondation 24 a, à sa partie supérieure, un bassin 66 contenant l'eau de flottement 68 sur laquelle repose la flotte 50, permettant ainsi la rotation de la turbine 22. On peut abaisser l'eau de flottement 68 pour faire caler la turbine 22 dans le cratère pour minimiser la surface d'entrée d'air dans les pales dans le cas de vents violents. La partie inférieure de la fondation 24 contient une machinerie 60 génératrice.
Patent CA-2229839-A1 (CA)
Inventor: KROLLMANN NORBERT
IPC: C08J9/12
Filed: 1998-03-19
Abstract: The present invention relates to thermal insulation gas mixtures comprising cyclopentane and argon for filling cavities.
Patent CA-2231791-A1 (CA)
Inventor: BENEDETTO ADRIAN
IPC: H02B3/00
Filed: 1998-03-10
Abstract: The invention relates to a stationary housing for accommodating electrical arrangements, in particular cable-branching arrangements. The housingcomprises separately produced wall elements which are made of plastic and can be assembled in a positively locking manner on site, a dimensionally stable framework serving as carrier for the electrical arrangements and being enclosed by these plastic parts such that joints are produced on the side walls and the housing roof. The plastic parts are optionally stiffened to a further extent by corresponding profilings or corner enforcements and consist of glass-fiber-reinforced polyester, polypropylene or polyethylene with appropriate coloring and UV-resistance. One person can easily assemble a housing of this type on site in a few minutes and, if required, dismantle it again for repair purposes.
Patent CA-2233198-A1 (CA)
Title: Method for testing dialyzer integrity before use
Inventor: PETER HARALD
IPC: A61M1/16
Filed: 1996-09-27
Abstract: The present invention includes a method and apparatus for testing the integrity of a dialyzer (12) prior to use. The dialyzer (12) is tested in the same way as when used in the treatment of dialysis. The dialyzer (12) is primed in the normal manner. The arterial blood line (16) is clamped while the venous line (18) is vented to the atmosphere (44). The ultrafiltrate flow rate through dialyzer (12) is increased until a rate is achieved, so that blood passing through would be ultrafiltered. The dialyzer (12) is monitored for pressure increases. If the pressure does not increase the test fails.
Patent CA-2234564-A1 (CA)
Title: Lens antenna
Inventor: TANABE KOSUKE
IPC: H01Q19/06
Filed: 1998-04-08
Abstract: A lens antenna having high antenna efficiency, low sidelobe levels, and that is easily assembled. The lens antenna includes a first horn made of a metallic conductor, a second horn made of a high-frequency absorbing plastic material, and a lens for controlling the power distribution at an aperature of the horn. Screws may be used to assemble the first horn, the second horn, and the lens. Though some of the microwave signals input through the circular waveguide of the first horn are reflected on the surface of the lens, most of the microwave signals are absorbed by the second horn.      Moreover, because no wave absorber is bonded to an inner wall of a conical horn, nothing screens the microwave signal, the power density distribution at the aperture of the lens is not disrupted. Therefore, it is possible to obtain a desired power density distribution.
Patent CA-2236443-A1 (CA)
Title: Apparatus and method for forming voids under concrete floors and the like
Inventor: ISLES TIMOTHY J
IPC: E02D27/01
Filed: 1998-04-30
Abstract: A reinforced box-like structure for forming a void area in a concrete formation. The structure includes a bottom panel having a plurality of spaced apart, parallel base partitions and a top panel having a plurality of spaced apart, parallel top partitions. The base partitions extend across the bottom panel and in a direction normal to the bottom panel, and the top partitions extend across the top panel and in a direction normal to the top panel. Each of the base partitions and top partitions include a plurality of double-thickness walls with a plurality of slots therein and flat top edges between the slots. The structure is assembled by superimposing the top panel over the bottom panel such that the base partitions extend transversely relative to the top partitions. Thus, the slots in the base partitions register in interlocking relationship with the corresponding slots in the top partitions, wherein the base partitions extend substantially to the top panel and the top partitions extend substantially to the bottom panel to create a cellular box-like structure that generally fills a space between the bottom panel and top panel with the flat top edges engaging the respective top or bottom partition.
Patent CA-2236841-A1 (CA)
Title: Anisotropic continuous glass mat and method of manufacture
Inventor: DROUX MICHEL
IPC: D04H3/004
Filed: 1997-09-04
Abstract: The invention concerns anisotropic continuous glass mats containing at least one layer of continuous glass fibres comprising at least 60 % by weight of fibres arranged according to a preferred direction. The invention also concerns a method for obtaining such mats.
Patent CA-2240915-A1 (CA)
Title: Method of preventing fraudulent toll calls by key system users
Inventor: IVAN-MILAKNIS SHIRLEY-ANN
IPC: H04M9/00
Filed: 1998-06-17
Abstract: The invention provides a method and apparatus for the prevention of fraudulent toll calls by a user connected to a key telephone system.  On recognition of a user request for use of a telephone line to make a call to a destination outside the key system, the forward speech path to the seized telephone line is muted.  The string of digits dialed by the user are monitored and evaluated for correspondence to restrictions associated with the user terminal.  If restrictions are failed, the call is terminated; otherwise, the forward speech path is unmuted and the call is allowed to proceed in the conventional manner.  The invention may also provide an interdigital timer which is set upon reception of each dialed digit whereby if the timer is allowed to reset while the dialed digit string is being monitored, the call is terminated.
Patent CA-2241568-A1 (CA)
Title: Process for preparing aromatic dicarboxylic acids
Inventor: IWATA HIDEAKI
IPC: C07C51/43
Filed: 1997-10-28
Abstract: A process for producing an aromatic dicarboxylic acid by simple operations using a simple apparatus is disclosed, which enables to effect separation and washing of the product crystals efficiently without suffering from clogging of the apparatus, while permitting recovery of the reaction solvent and catalyst with permission of an efficient replacement of the solvent. According to the present invention, an aromatic dicarboxylic acid is produced by effecting, in the oxidation reactor 1, a liquid phase oxidation of an aromatic compound having substituent groups of alkyl(s) or partly oxidized alkyl(s) in a reaction solvent containing a catalyst with a molecular oxygen-containing gas, wherein the slurry containing the crystals of the aromatic dicarboxylic acid from a slurry receiver 4 or from a purification reactor 7 is introduced into a centrifuge 5a or 5b provided in its solid matter delivery zone with a filtering region to subject it to a centrifugation in order to separate it into the crystals and a separated liquid, whereupon the so-separated crystals are filtered in the filtering region on their way of travelling across the solid matter delivery zone while contacting them with a washing liquid and discharging the spent washing liquid from the filtering region.
Patent CA-2244917-A1 (CA)
Inventor: DREISBACH CLAUS
IPC: C07C213/10
Filed: 1997-01-20
Abstract: Specific optically active (S)-amines are obtained as follows: in a first stage, suitable racemic amines are allowed to react, in the presence of lipase from Candida antarctica and optionally in the presence of a diluting agent, with an ester; and in a second stage, the mixture obtained is separated.