baber/WOPTO huggingface dataset:
Patent CA-2394885-A1 (CA)
Title: Control valve pressure bleed inspection port
Inventor: STIEHL MARK DOUGLAS
IPC: F16K24/02
Filed: 2002-07-24
Abstract: A valve with an integral means for bleeding internal pressure prior to separation of a bonnet for the valve from its engagement with the valve body, provided by a bore through the valve body. This allows the internal pressure of the valve to equalize with atmospheric pressure prior to complete disassembly of the bonnet from the valve body. The bore through the valve body also serves as a leak detector, by providing a path for fluids passing through the valve to leak to the exterior of the valve body in the event of a failure of the seal between the bonnet and the valve body, which can readily be detected by passersby upon inspection of the exposed end of the bore at the exterior of the valve body.
Patent CA-2396420-A1 (CA)
Inventor: BAENZIGER CARL R
IPC: E21B33/03
Filed: 2000-11-28
Abstract: A pressure reducing assembly for high pressure oil wells is disclosed. The assembly includes a metallic body having inlet and outlet channels that are lined with ceramic inserts. The assembly may also include a removable pressure reducing device that is preferably formed of a ceramic material. Pipe spool pieces associated with the pressure reducing assembly transition the narrow interior flow diameter of the assembly to the larger interior flow diameter of downstream oil process piping. The spool pieces have metallic bodies, with flow channels that are lined with ceramic inserts. The ceramic inserts are disposed within the metallic spool, and are preferably designed with a flow channel taper that gradually increase the interior flow diameter from that of the outlet channel of the pressure reducing assembly to that of the process piping. The use of the ceramic inserts and liners in the pressure reducing assembly provides a method for increasing the operating life of the flow control components of high pressure oil wells.
Patent CA-2401892-A1 (CA)
Title: Element de support universel a ressort de tension pour pans lateraux ou cadre de lit
Inventor: CARLSON PAUL ERIC
IPC: A47C19/02
Filed: 2001-03-05
Abstract: L'invention concerne un élément transversal universel pouvant être utilisé avec un cadre de lit ou des pans latéraux de lit pour soutenir un sommier tapissier et un matelas. L'élément transversal universel comporte une barre droite à extrémités télescopiques, de sorte qu'il peut être adapté à diverses largeurs de pans latéraux de lit. Un système de tendeur prévu pour augmenter la résistance de l'élément transversal universel rend superflu, dans presque tous les cas, tout support supplémentaire de l'élément transversal universel au sol tel qu'une roulette ou un patin. Dans le système de l'invention, les extrémités d'une barre de tension sont fixées aux extrémités de l'élément droit ou à proximité de celles-ci, et sa partie centrale est en contact avec un bloc situé à une distance donnée de l'élément droit, sur le centre de l'élément droit ou autour de celui-ci. En mettant la barre de tension sous une tension prédéterminée, on produit une force qui agit à travers le bloc contre le centre approximatif de l'élément droit. Cette tension peut être produite par une traction des extrémités de la barre de tension vers l'extérieur, à proximité de l'extrémité. La barre de tension produit ainsi une force s'exerçant contre l'élément droit au centre de celui-ci, qui tire également les extrémités de l'élément droit vers l'intérieur de façon à solliciter celui-ci vers une configuration arquée, dans laquelle le centre s'éloigne de la direction de la force et les extrémités s'arquent dans les directions opposées. Cette sollicitation s'oppose ainsi au poids imposé sur l'élément transversal universel par le sommier tapissier, le matelas et d'autres éléments appuyant sur l'élément transversal universel, rendant superflu tout support supplémentaire au sol ; et l'élément transversal universel peut être utilisé indépendamment de la hauteur au sol des pans latéraux du lit.
Patent CA-2402095-A1 (CA)
Title: Capstan for handling slitting tools
Inventor: AHRNS RICK L
IPC: B23D35/00
Filed: 2002-09-10
Abstract: A capstan 10 for handling slitting tools comprises a base 12, a pivoting frame 14, an outer frame 16 and a plurality of shafts 20-36. The pivoting frame 14 is supported by the base 12 for pivotal movement about an axis 64, The outer frame is supported by the rotating frame for translational movement along the axis. The plurality of shafts extends from the outer frame transversely to the axis The capstan preferably further includes an axial actuator 150 for translating the outer frame 16 relative to the pivoting frame 14 along the axis 64. This permits an attendant 54 to raise or lower the outer frame, and hence raise or lower the shafts. By thus raising or lowering the shafts, the attendant can adjust the height of the shafts to a comfortable level for loading or unloading knives and spacers 40 without excessive lifting or bending. An optional pusher 180 serves to automatically slide the tools between the capstan 10 and the slitter machine 52.
Patent CA-2405133-A1 (CA)
Inventor: TOOM PAUL
IPC: E01C23/01
Filed: 2002-09-25
Abstract: A surface profiler comprises at least one mass resiliently supported in relation to the frame of the profiler to exert a downward force opposing upward movement of the frame when the wheels pass over an obstacle. Two such masses may be constrained for substantially vertical movement by tie rods extending from pivoting suspension bars secured on distal portions of the frame. A pivoting bracket optionally connects to a handle or to a motor drive unit for propelling the apparatus. The bracket is pivoted about the center point of a line joining the centers of the wheel axles to avoid any torque on the apparatus as a result of operator manipulation.
Patent CA-2409853-A1 (CA)
Title: Method for the production of trifluoroethoxy-substituted benzoic acids
Inventor: ENKE STEFFEN
IPC: C07B61/00
Filed: 2001-05-23
Abstract: The invention relates to a method for the production of trifluoroethoxy- substituted benzoic acids, by reaction of a corresponding halogenated benzoi c acid with trifluoroethanol in the solvent tetrahydrofuran, in the presence o f a base and a copper salt, followed by an acidic work-up.
Patent CA-2411775-A1 (CA)
Inventor: LEWIN ALLAN
IPC: E21B47/00
Filed: 2002-11-13
Abstract: A method of protecting against loss of downhole tools in wells, the method comprising the steps of making repeated use of a wire rope to suspend downhole tools in wells, the downhole tools being suspended from a downhole end of the wire rope, testing the integrity of the wire rope from time to time according to a maintenance schedule, and shortening the wire rope when the wire rope fails integrity testing. Tests that may be performed are a test of the longitudinal strength of at least one wire from the downhole end of the wire rope, a test of the stretch of the wire rope, a test of the diameter of a wire from the downhole end of the wire rope, a test of the diameter of the downhole end of the wire rope, a test of the flex strength of a wire from the wire rope, a test of the twist strength of a wire from the wire rope; and a test of the weight of a segment of the wire rope.
Patent CA-2413505-A1 (CA)
Inventor: KOBAYASHI TOSHIKAZU
IPC: G11B7/085
Filed: 2001-10-25
Abstract: A pulling-in point setting circuit (16) sets, prior to optical disk (11) reproducing, a median value between the maximum and minimum values of a focu s error signal of a layer (1) as a focus servo pulling-in point. At a layer ju mp before the automatic regulation of a focus bias, a focus servo is pulled in at this point, thereby enabling a positive layer jump even before focus bias regulating.
Patent CA-2415101-A1 (CA)
Title: Master cylinder lever for a hydraulic disc brake
Inventor: LUMPKIN WAYNE R
IPC: B62L3/02
Filed: 2002-12-24
Abstract: A master cylinder for a bicycle hydraulic disc brake includes a cylinder having a port in fluid communication with a hydraulic fluid reservoir. The port opens to the cylinder between first and second ends of the cylinder. A piston within the cylinder is movable between a select starting position with the seal between the first end of the cylinder and the port opening with the piston select distance from the port opening and a pressurized position with the seal between the port opening and the second end of the cylinder. A dead-band adjustment structure is operatively associated with the piston for moving the select starting position to adjust the select distance between the port opening and the seal. A lever is pivotably attached to the housing and is operatively associated with the piston to move the piston between the select starting position and the pressurized position as the lever is pivoted between a rest position and a fully-actuated position. A compensating structure operatively associated with the dead-band adjustment structure and the lever maintains the lever in a select rest position as the dead-band adjustment structure is actuated to move the select starting position.
Patent CA-2418212-A1 (CA)
Inventor: GILES ROGER
IPC: H01J49/10
Filed: 2001-07-26
Abstract: A mass spectrometer has an ion source (10) with a plurality of atmospheric pressure sample ioniser (20) mounted in a front face (15) thereof. Each sample ioniser (20) extends into a corresponding sample region (30) and the tip of each sample ioniser is mounted at right-angles to a corresponding one of a plurality of entrance cones (50) each having an entrance orifice (40) therein.  Each entrance cone (50) in turn opens into an inlet channel having first and second parts (60, 70). The two parts of the inlet channel are separated by an electrical gate (65). The inlet channels corresponding to each entrance cone (50) all merge into a common exit channel (90) to a mass spectrometer. By appropriate operation of the gates (65) dividing the inlet channels, rapid switching between the samples that are analysed in the mass analyser can be achieved.
Patent CA-2418435-A1 (CA)
Inventor: DEXHEIMER EDWARD M
IPC: C08G64/18
Filed: 2003-02-03
Abstract: A method of forming a polyethercarbonate polyol using a multimetal cyanide compound is disclosed. The method includes providing a multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the weight of the multimetal cyanide compound and further including at least two of the following components: an organic complexing agent, water, a polyether, and a surface-active substance. Then an alcohol initiator is reacted with at least one alkylene oxide and carbon dioxide under a positive pressure in the presence of the multimetal cyanide compound, thereby forming the polyethercarbonate polyol.
Patent CA-2418811-A1 (CA)
Title: Wheel spinner assembly independently rotatable relative to a corresponding wheel
Inventor: FOWLKES DAVID
IPC: B60B7/20
Filed: 2001-08-08
Abstract: A wheel spinner assembly (10) mountable onto a corresponding wheel of a vehicle is provided. The assembly (10) includes a wheel mount (18) supportable by the wheel. A spinner mount is connected to the wheel mount. A bearing assembly (28) is supported by the spinner mount. A spinner is supported by the bearing assembly (28), wherein the bearing assembly (28) allows the spinner to rotate independently relative to the corresponding wheel as the vehicle is in motion.
Patent CA-2418943-A1 (CA)
Title: Improved cooling system for rotary valve engine
Inventor: COATES GEORGE J
IPC: F01L7/18
Filed: 2001-08-29
Abstract: An improved cooling system for an internal combustion engine employing spherical rotary intake and exhaust valves (18,32) which are fixedly mounted on a rotating shaft (20,34), the improvement comprising the forming of the shaft (20,34) with a longitudinal throughbore (52,54), the throughbore (52,54) in sealing contact with an inlet coupling (60) and an outlet coupling (60) for the circulation of coolant through the shaft (20,34) during operation, the coolant in communication with the coolant reservoir for the engine such that it would undergo normal cooling in the radiator before being recirculated to the engine.
Patent CA-2420622-A1 (CA)
Title: Process and device for carrying out reactions in a reactor with slot-shaped reaction spaces
Inventor: MARKOWZ GEORG
IPC: B01J8/02
Filed: 2001-08-02
Abstract: Reactions between at least two fluid reactants are performed in a reactor comprising wall elements (1), slot-shaped reaction spaces (3) and cavities (5) for conducting a fluid heat-carrier through. Depending on the process and throughput, a modular structural design is chosen wherein an arbitrary number of wall elements (1) are assembled to a right-parallelepipedal block (24), the reaction spaces (3) are formed between lateral surfaces (2) of right-parallelepipedal wall elements (1), the reactants are introduced into the reaction spaces (3) from edge regions of one side of the block (24) and are conducted through the reaction spaces (3) in parallel flows and the fluid heat-carrier is conducted through the tubular cavities (5) extending in the interior of the wall elements (1).
Patent CA-2420811-A1 (CA)
Inventor: VO CHANH C
IPC: H01T1/14
Filed: 2003-03-04
Abstract: A failsafe surge protector having a reduced part count includes a line terminal, a gas tube assembly, at least one ground spring for biasing the gas tube assembly in the direction of the line terminal, and a ground terminal. The gas tube assembly includes a gas tube, a fusible solder pellet, a failsafe ground, an MOV, and an MOV spring. The surge protector provides a first electrical ground path from the line terminal to the ground terminal through the gas tube and the fusible solder pellet, and a second electrical ground path parallel to the first electrical ground path from the line terminal to the ground terminal through the MOV.  When the fusible solder pellet melts, the ground spring biases the failsafe ground into electrical contact with the line terminal, thereby providing a short-circuit electrical path from the line terminal to the ground terminal through the failsafe ground.
Patent CA-2421561-A1 (CA)
Title: Adaptive inverse control of pressure based ventilation
Inventor: BORRELLO MICHAEL
IPC: A61M16/00
Filed: 2001-08-29
Abstract: The adaptive control method for controlling pressure based ventilation utilizes a specific regulator structure designed according to a linear model of the patient/ventilator system. The same model is also used to derive a real time estimate of patient airway resistance, lung compliance, and the connecting tube compliance. These estimates are used to adjust regulator parameters in real time such that closed loop dynamics quickly approach those of a specified system. In the patient/connecting circuit system, G(s) inlet flow and circuit pressure are fed to a parameter estimator, and the output of the parameter estimator is used to adjust the parameters of the compensator, C(s).
Patent CA-2423304-A1 (CA)
Inventor: KING REGINALD ALFRED
IPC: G06K9/52
Filed: 2001-09-26
Abstract: A pattern matching preprocessing system which comprises: a) means for effecting a frequency domain transform on an input signal; b) means for producing a spectral plot from the output of a); c) means for effecting a spectral reconfiguration permutation and mapping (SRP & M) on the spectr al plot as hereinbefore defined; d) means for effecting an inverse frequency domain transform on the output of c); and e) means for applying a Wave Shape  Descriptor coding and classification to the output of d).
Patent CA-2424179-A1 (CA)
Title: System and method for validating quadrature signals
Inventor: EASTON DAVID J
IPC: H03D13/00
Filed: 2003-03-31
Abstract: A system and method is provided for use in a control system, such as a steering control system, for validating quadrature signals. A system makes a determination of validity based on the timing of detected state changes in the quadrature signals. To accomplish this, the amount of time that elapses between successive transitions is compared to the amount of time that elapses in an adjacent time period.      If the two time periods are close enough, the signals are considered valid.
Patent CA-2425580-A1 (CA)
Title: Method for producing a magnesium hot strip
Inventor: PIRCHER HANS
IPC: B21B3/00
Filed: 2001-10-23
Abstract: The invention relates to a method for producing a magnesium hot strip, in which a melt from a magnesium alloy is continuously cast to form a roughed strip with a thickness of maximum 50 mm, and in which the cast roughed strip is hot-rolled directly from the cast heat at a hot-rolling initial temperature of at least 250 °C and maximum 500 °C to form a hot strip with a final thickness of maximum 4 mm, whereby in the first hot-rolling pass a reduction in the thickness of at least 15 % is achieved. With the method according to the invention, magnesium sheets with improved deformability can be produced with reduced manufacturing effort and expenditure.
Patent CA-2426040-A1 (CA)
Title: Auto-test integre a frequence de fonctionnement nominale de memoires statiques compactes multiport
Inventor: WU YUEJIAN Y
IPC: G11C29/56
Filed: 2000-11-09
Abstract: L'invention concerne un auto-test intégré (BIST : built-in self test ) destiné à une mémoire statique compacte (CsRAM) multiport. Ce test fait appel à un contrôleur BIST qui fonctionne à la fréquence du système, tandis que la mémoire CsRAM est testée à la fréquence de la mémoire. Ces circuits de test permettent des accès aléatoires multiples à la mémoire CsRAM par cycle d'horloge du système. Les défauts de synchronisation peuvent ainsi être détectés dans la CsRAM. La mémoire CsRAM est divisée virtuellement en "k" sections, qui sont testées simultanément à partir de différents ports d'accès avec des données de test identiques et complémentaires. Cet auto-test peut être réalisé au moyen d'un contrôleur BIST conventionnel disposé en anneau autour du matrice mémoire complété par une quantité minimale de matériel de traitement.
Patent CA-2428243-A1 (CA)
Title: Apparatus and method for continuously and endlessly vulcanizing rubber hose
Inventor: HARCOURT ROBERT
IPC: B29C48/09
Filed: 2001-02-16
Abstract: An apparatus and process for continuously and endlessly vulcanizing a hose is disclosed and claimed. Pressurized air or other gas is intermittently supplied through a woven jacket (101), a mandrel (104, 105), a check valve (106) and into the interior of an extruded rubber hose. The hose is sealed as it is pulled over the mandrel. Pinch rollers (143) seal the other end of the hose.  One or more non-contact heaters (126, 129) vulcanize the hose from outside-in.  Pressurizing the inside of the hose maintains proper diametrical dimensions of the hose.
Patent CA-2430868-A1 (CA)
Inventor: ROBILLOT CEDRIC
IPC: G01N33/544
Filed: 2001-12-12
Abstract: A method of detecting and/or measuring the amount of a paralytic shellfish toxin (PST) present in a sample, comprising the steps of: 1) providing an isolated and purified saxiphilin, or fragment thereof which contains a saxitoxin binding site; 2) contacting it with the sample; 3) measuring bindi ng of PST contained in the sample to said isolated and purified saxiphilin; and  correlating the amount of binding with either the presence or absence of PST s in the sample or with the PST concentration in the sample.
Patent CA-2431074-A1 (CA)
Title: Pharmaceutical formulation comprising thienopyrimidines and antithrombotics, calcium antagonists, prostaglandins or prostaglandin derivatives (1)
Inventor: EIERMANN VOLKER
IPC: A61P31/04
Filed: 2001-11-28
Abstract: The invention relates to a pharmaceutical preparation containing at least on e compound of formula (I) wherein R1, R2, R3, R4, n and X have the same meanin g as cited in claim 1, and the physiologically acceptable salts thereof and/or  solvates and a) at least one antithrombotic or b) at least one calcium antagonist or c) at least one prostaglandin or prostaglandin derivative for producing a medicament for treating angina, high blood pressure, pulmonary hypertension, congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), pulmonary heart disease, right ventricular failure, atheriosclerosis, conditions of reduced cardiovascular patency, peripheral vascular illnesses, cerebral apoplexy, bronchitis, allergic asthma, chronic asthma, allergic rhinitis, glaucoma, irritable bowel syndrome, tumours, kidn ey failure, cirrhosis of the liver and for treating female sexual problems.</SD OAB>
Patent CA-2431326-A1 (CA)
Inventor: NAAB PAUL
IPC: A61P43/00
Filed: 2001-12-04
Abstract: La présente invention concerne les pyrrolo[2.1-a]dihydroisoquinolines. Lesdits composés sont des inhibiteurs de phosphodiestérase 10a et peuvent être utilisés dans la lutte contre le cancer.
Patent CA-2431352-A1 (CA)
Title: An aircraft flap extension mechanism
Inventor: ROBINSON PHILIP IAN
IPC: B64C9/18
Filed: 2001-11-13
Abstract: An aircraft flag extension mechanism including a flap positioning mechanism (30) comprising a carriage (50) and track system (40) suitable for use with variable radius or multiple curvature tracks.
Patent CA-2432832-A1 (CA)
Title: Headphones for 3d sound
Inventor: HILDEBRANDT JAMES G
IPC: H04R5/033
Filed: 2003-06-16
Abstract: A headset apparatus is taught comprising at least one sound emission means, a tube connected to the sound emission means adjacent one end of the tube, and an outlet at the opposite end of the tube for positioning the outlet at a desired position adjacent a user's ear, various positions possible to achieve a variety of acoustic effects. The apparatus may comprise two or four sound emission means, with a plurality of tubes connecting the sound emission means to outlets, to effect diverse directional acoustic effects. Electronic control means may be employed to control emissions of the sound emission means, and the apparatus may comprise bass sound emission means adjacent the user's ear. Supporting means are also taught for supporting the headset apparatus on a user, such that the user's ear can be moved relative to the headset apparatus to enhance the acoustic effects.
Patent CA-2433148-A1 (CA)
Inventor: LABS JONATHAN F
IPC: H04L27/26
Filed: 2003-06-23
Abstract: A method and apparatus is disclosed for correcting a frequency offset in a received OFDM signal comprising estimating a fractional frequency offset; removing the fractional frequency offset, estimating an integer frequency offset and removing the integer frequency offset.
Patent CA-2433835-A1 (CA)
Title: Tetrahydropyran derivatives as neurokinin receptor antagonists
Inventor: SWAIN CHRISTOPHER JOHN
IPC: A61P43/00
Filed: 2002-01-16
Abstract: The present invention relates compounds of the formula (I): wherein R1, R2, R3, R4, R5, R6, R7 and R8 represent a variety of substituents; and pharmaceutically acceptable salts thereof. The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migraine, emesis or postherpetic neuralgia.
Patent CA-2435239-A1 (CA)
Title: Produits alimentaires aseptises
Inventor: TRAEDER TERRY JAY
IPC: A23L3/358
Filed: 2002-01-11
Abstract: L'invention se rapporte à un procédé d'aseptisation d'un produit alimentaire consistant à appliquer un liquide d'aseptisation aqueux sur le produit alimentaire par pulvérisation de ce dernier sur toutes ses surfaces extérieures, selon une pluralité de directions, tout en déplaçant ledit produit alimentaire latéralement par rapport au pulvérisateur, la vitesse de chaque pulvérisateur étant suffisante pour humidifier les microbes adhérant à la surface du produit alimentaire. Ledit liquide d'aseptisation comprend de l'ozone à une concentration pouvant atteindre 15 ppm, et comporte également de préférence au moins un agent inhibant les microbes alimentaires, ledit agent étant présent à une concentration suffisante pour assurer l'inhibition des microbes alimentaires. Le procédé consiste ensuite à maintenir le contact entre le liquide d'aseptisation et ledit produit alimentaire pendant un laps de temps suffisant de manière à maximaliser l'humidification de la surface du produit alimentaire par le liquide d'aseptisation contenant au moins ledit agent, et enfin à retirer mécaniquement au moins 75 % de ce liquide du produit alimentaire.