baber/WOPTO huggingface dataset:
Patent CA-2228121-A1 (CA)
Title: Noise canceller
Inventor: IKEDA SHIGEJI
IPC: H04B3/23
Filed: 1998-01-28
Abstract: A noise canceler of the present invention includes a signal-to-noise power ratio estimator to which a main signal and a reference signal are input. The estimator 10 estimates the sinal-to-noise power ratio of the main signal from the mean power of a desired signal contained in the main siganl and a mean power of a noise signal also contained in the main signal. In addition, the estimator estimates the signal-to-noise power ratio of the reference signal from the mean power of a desired signal contained in the reference signal and the mean power of a noise singal also contained in the reference signal. An adptive filter for estimating the noise signal of the main signal has its step size for coefficient updating controlled in accordance with the estimated signal-to-noise power ratio of the noise signal. On the other hand, an adptive filter for estimating the desired signal of the reference signal has its step size for coefficient updating controlled in accordance with the estimated signal-to-noisepower ratio of the reference signal. Delay circuits are provided for compensating for a delay ascribable to a power averaging procedure which a signal-to-noise power ratio estimator executes to calculate the estimated siganl-to-noise power ratios.
Patent CA-2230533-A1 (CA)
Title: Ornamental lamp
Inventor: WANG YU-TING
IPC: F21V17/04
Filed: 1998-02-26
Abstract: An ornamental lamp having a lamp bulb, and an ornament directly molded from a polymer around the bulb of the lamp bulb and colored, permitting the lamp base of lamp bulb to be extended out of the ornament for connection to an electric socket, light from the lamp bulb passing through the ornament in different directions when the lamp bulb is turned on.
Patent CA-2231531-A1 (CA)
Title: Improved combination control for injection molding
Inventor: TIBBITTS DENNIS C
IPC: B29C45/77
Filed: 1996-10-01
Abstract: An adaptive controller (42) is provided for controlling the velocity of a ram (32) in an injection molding apparatus (14) during the injection stage of the molding cycle. The controller (42) includes two sets of parameters. The first set of parameters defines an open-loop control equation and the second set of parameters defines a closed-loop control equation for controlling the ram (32) velocity. The first and second set of parameters are modified to improve the ram (32) performance and efficiency on the subsequent injection cycle.
Patent CA-2234276-A1 (CA)
Title: Method and apparatus for measuring radiation dose distribution
Inventor: DALTERIO MICHAEL
IPC: G01T1/161
Filed: 1996-10-04
Abstract: This invention is a phantom apparatus (10) for measuring the radiation dose distribution produced by a brachy-therapy device used to treat a localized area with radiation. The brachy-therapy device includes an insertable probe (24) capable of producing predefined radiation dose geometries about a predefined point. The phantom apparatus (10) includes a tank (12) containing a medium having a radiological equivalent characteristic of the localized area to be treated. The phantom apparatus (10) also includes a radiation sensor (32) for measuring the radiation dose and a positioning system for moving the probe (24) with respect to the radiation sensor (32). The radiation sensor (32) is also coupled to a positioning system (50) to orient the sensor (32) for optimal dose measurements. The phantom apparatus (10) includes a control system (160) that coordinates the movements of the probe (24) and the radiation sensor (32) to avoid a collision. The control system (160) moves the probe (24) along a predefined path around radiation sensor (32) and records the dose at predefined points along the path. In order to reduce the settling time of the sensor (32), the path is selected to coincide with the isodose contours of the radiation dose distribution of the probe (24).
Patent CA-2235907-A1 (CA)
Inventor: WOODHOUSE KIMBERLY
IPC: C08G18/83
Filed: 1998-04-27
Abstract: Disclosed herein is a biodegradable polyurethane material having a backbone containing at least one amino acid group. The amino acid group is in a conditionrendering it recognizable by a biological agent.
Patent CA-2237028-A1 (CA)
Title: Device for deterring unsafe usage of a handrail
Inventor: CARON JEAN-MARC
IPC: B66B29/04
Filed: 1998-06-12
Abstract: A deterring device for deterring unsafe usage of a handrail part of an escalator or other conventional people moving devices. The deterring device includes an elongated body positioned in an overlying yet spaced relationship relative to the handrail. The body define an overriding surface having a generally concave shaped configuration for allowing intended users to grasp the handrail while blocking access to the handrail by other body parts of the intended users and blocking access to the handrail from the exterior of the people moving device.
Patent CA-2237154-A1 (CA)
Title: Liquid-absorbent article and method and apparatus for manufacturing the absorbent article
Inventor: CANUEL LOUIS
IPC: A61F13/15
Filed: 1996-09-20
Abstract: A liquid-absorbent article having a high absorption capacity and a short fluid penetration time. The liquid-absorbent article has a porosity gradient along the Z direction (the thickness) established by superposing layers of absorbent material having different average pore sizes. In one embodiment the porous network of each absorbent layer is a combination of inter-particle and intraparticle interstices. In another embodiment the absorbent layers have different average particle sizes. The liquid-absorbent article is well-suited for use as an absorbent component of a disposable absorbent product, such as a sanitary napkin, a diaper, an incontinence pad, an adult brief, a wound dressing, a nursing pad, a tampon pledget, or as desiccant for packaging materials to keep goods dry during shipping or storage. The invention also extends to a novel method and apparatus for manufacturing the liquid-absorbent article.
Patent CA-2237474-A1 (CA)
Inventor: HERZOG PETER
IPC: D21H23/34
Filed: 1998-05-12
Abstract: The invention relates to an apparatus for applying, by means of a slotted nozzle device formed between a stationary incoming nozzle lip and a trailing nozzle lip, a thin layer of coating material to a porous material web that passes over a counterpressure roll, wherein a doctor bar with an essentially circular cross-sectional shape is disposed on the trailing nozzle lip; this doctor bar has on its periphery at least one flattened section that runs across the entire longitudinal extension of the doctor bar and is rotatably supported within a doctor support so that the flattened section is adjustable at a setting angle relative to the counterpressure roll.
Patent CA-2237914-A1 (CA)
Title: Mono-olefin/polyene interpolymers, method of preparation, compositions containing the same, and articles made thereof
Inventor: CREE STEPHEN H
IPC: C08F4/64
Filed: 1996-11-27
Abstract: Interpolymer of a) a mono-olefin selected from .alpha.-olefins and cyclic olefins, and b) a non-conjugated polyene having at least 7 carbon atoms and having two readily polymerizable double bonds, having an improved melt tension, improved processability, or a combination of both, a process of preparing such interpolymers, composition comprising such interpolymers and one or more further natural or synthetic polymers or one or more additives or adjuvants, as well as articles obtained by subjecting such interpolymers to melt processing conditions.
Patent CA-2239984-A1 (CA)
Inventor: GALLOWAY ANTHONY JOHN
IPC: F23G7/06
Filed: 1998-06-08
Abstract: A method and apparatus for reclamation of glycol based liquids used in gas dehydration. A first step involves providing an thermal oxidizer and a reboiler.  A second step involves providing a dual stream valve having a first outlet, a second outlet and means for adjusting the relative flow through the first outlet and the second outlet. A third step involves placing the dual stream valve on an exhaust gas outlet of the thermal oxidizer and coupling the first outlet to an exhaust stack and the second outlet to the reboiler. The fourth step involves diverting through the second outlet of the dual stream valve such exhaust gases flowing through the exhaust gas outlet of the thermal oxidizer as may be required to provide heat necessary to operate the reboiler.
Patent CA-2240450-A1 (CA)
Inventor: RISHEA MARC MURRAY
IPC: C22B3/08
Filed: 1998-06-12
Abstract: A process for the treatment of a roasted metal sulphide ore, for the separation of metals therefrom.      The process comprises leaching the roasted ore with peroxysulphuric acid, and separating a solution containing metals. The process is particularly useful in separating copper and zinc from sulphide ores of those metals.
Patent CA-2245711-A1 (CA)
Title: Device for evaporating an active fluid substance
Inventor: STEINEL HEINRICH WOLFGANG
IPC: A61L9/03
Filed: 1996-02-09
Abstract: The invention relates to a device for evaporating an active fluid substance (12). Said device has a wick (7) which can be dipped into the active fluid substance (12) and is entended to deliver the active substance. When dipped one end of the wick protrudes from the active fluid susbtance and is provided with a heating device (3) provided on the wick in the region of the protruding end. Said device is characterised in that the form of the wick is such that the active fluid substance (12) cannot substantially pass through the outer surface of said wick at least along the length thereof dipping into the active fluid substance, the active fluid substance (12) can substantially pass through said wick in the region of its end surface (10) opposite the protruding end, and evaporating active substance (12) can pass through in the region of the heating device (3) at least when the wick is heated. The active fluid substance therefore rises uniformly into the wick.
Patent CA-2247637-A1 (CA)
Title: Video data editing apparatus, optical disc for use as a recording medium of a video data editing apparatus, and computer-readable recording medium storing an editing program
Inventor: TSUGA KAZUHIRO
IPC: G11B27/32
Filed: 1998-09-17
Abstract: One or more video objects are recorded on an optical disc.  When a user indicates a linking edit that links sections of the video objects, video object units (VOBUs) that include picture data at the end of a former section and VOBUs that include picture data at the start of a latter section are read from the optical disc and the audio packs and video packs are separated from these read VOBs.  Next, the video packs are re-encoded and some of the audio packs that were originally in the former section are multiplexed into the latter section.          The result of the multiplexing is then recorded onto the optical disc.
Patent CA-2247728-A1 (CA)
Inventor: SHACHI KENJI
IPC: C08L29/04
Filed: 1998-09-22
Abstract: Herein disclosed are a block copolymer having an isobutylene-based polymer block and a vinylic aromatic hydrocarbon-based polymer block and containing a styrenic unit having a halogenated saturated aliphatic hydrocarbon group on the benzene ring at 0.01 to 2 mol % on a basis of the total structural units and being capable of markedly improving the performance of a synthetic resin when the block copolymer is blended with the synthetic resin; a process for producing the block copolymer; and a resin composition containing the block copolymer.
Patent CA-2253591-A1 (CA)
Inventor: SCANLON MICHAEL V
IPC: A61B5/18
Filed: 1997-04-29
Abstract: This invention is a transducer (14) in communication with fluid in a pad (12), held in close contact against a sound or movement (19) source which monitors acoustic signals transferred into the fluid (62). The signal pattern is monitored aurally and/or compared to predetermined reference patterns, and optional control and stimulation means can be activated in response to the comparison results. The sensed acoustic signal can be transmitted to a remote receiver or processed locally. Typically, the acoustic signal is representative of the heartbeat or breathing of a living organism. The monitoring system may be applied to diverse situations including SIDS, apnea, home baby monitoring, medical transport devices, blood pressure cuffs, seats, combat casualty care and hand-held devices.
Patent CA-2255064-A1 (CA)
Title: Potassium, sodium and tris oxaprozin salt pharmaceutical formulations
Inventor: DESAI SUBHASH
IPC: A61K31/421
Filed: 1997-05-14
Abstract: The present invention provides a pharmaceutical formulation for oral administration which is pharmaceutically acceptable, and which produces a desired therapeutic response, in tablet, caplet or other compressed form which comprises the potassium, sodium or Tris salt of oxaprozin, the tablet, caplet or other compressed form of the pharmaceutical formulation generally becoming about 75 % dissolved in phosphate buffer media within about 30 minutes.
Patent CA-2258461-A1 (CA)
Inventor: STAHMER ULF
IPC: F15B13/042
Filed: 1999-01-13
Abstract: In a conventional spool valve, the nut holding the diaphragm to the spool valve stem is replaced by a retaining ring, thereby simplifying the machining operation and eliminating the problems caused by damaged threads. A good seal is nevertheless achieved by providing an insert molded diaphragm having a bead around its axial aperture, which is compressed against the radial flange of the valve stem, and such that the retaining ring will maintain the compressed condition of the bead against the radial flange to maintain a good seal.
Patent CA-2258659-A1 (CA)
Inventor: YUAN YUSHENG
IPC: E21B33/129
Filed: 1999-01-07
Abstract: A slip element installable about a downhole tool apparatus for use in anchoring a downhole tool in a wellbore comprising the slip element having at least one slip button made of a metallic-ceramic composite material comprising an effective percentage by weight of a preselected titanium compound whereby the slip button is resistant to chipping upon setting yet has favorable drillability characteristics upon drilling the downhole tool from a wellbore.        The slip element may include at least one slip element made of a non-metallic material such as a laminated non-metallic composite material. Preferably at least one slip button is made of a metallic-ceramic composite material comprising less than about 75% by weight of titanium carbide having a density ranging between about 5 to 7 grams per cubic centimeter.      Furthermore, the subject slip button is cylindrically shaped and is installed in at least one slip element at a preselected angle and extends outwardly at a preselected distance from a face of the slip element.
Patent CA-2258860-A1 (CA)
Title: Absorbent article having flexure resistant elasticized cuffs
Inventor: HUNTER ALLISON KAY
IPC: A61F5/44
Filed: 1997-06-17
Abstract: Disclosed is an absorbent article, such as a sanitary napkin, incontinent device, or the like. The absorbent article comprises a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core disposed between the topsheet and the backsheet. The absorbent article further comprises a pair of longitudinally extending cuffs disposed on the body surface of the topsheet on each side of a longitudinal centerline of the absorbent article. The cuffs comprise an elastic member and a resilient member and are joined to at least one of the topsheet and the backsheet in a longitudinally elastically elongated state. The elastic member preferably comprises first and second regions which are visibly distinct from each other.  The first region comprises at least two substantially planar portions and the second comprises a plurality of raised, rib-like elements. In a particularly preferred embodiment of the present invention, at least one of the substantially planar portions of the first region of the bands of web material extends in a substantially longitudinal direction and at least one other of the substantially planar portions of the first region of the elastic member is oriented at an angle with respect to the longitudinal direction. The resilient member is soft yet sufficiently resilient to resist the compressive forces applied to the cuffs by normal wearer movement. The resilient member is positioned sufficiently close to the body surface of the topsheet to also provide resistance to bending that may also be caused by normal bodily movements.
Patent CA-2258872-A1 (CA)
Title: Method for preparing transgenic non-human mammalian organs for transplantation to humans, and nucleotide sequences therefor
Inventor: VANHOVE BERNARD
IPC: C12N1/21
Filed: 1997-07-18
Abstract: The use of nucleotide sequences coding for antibodies to any molecule involved in a graft versus host reaction (hereinafter anti-molecule antibodies), for preparing transgenic cells or organs of non-human mammals, wherein said molecules at least partially form immune complexes with said anti-molecule antibodies, such that the activity of said molecules in graft versus host reactions is at least partially inhibited, said transgenic cells or organs of non-human mammals being intended for transplantation into a patient, is disclosed.
Patent CA-2260249-A1 (CA)
Inventor: KWOH DANIEL S
IPC: H04N5/44
Filed: 1997-07-09
Abstract: Cette invention concerne une unité de commande de syntoniseur de télévision (10), laquelle unité possède une mémoire (22) qui comprend plusieurs ensembles de codes de commande à distance servant à commander un syntoniseur de télévision (10), par exemple, un boîtier de raccordement. Le syntoniseur de télévision va modifier le canal qu'il est en train d'ajuster en un canal spécifique, ceci au moment où il reçoit une instruction de commande à distance de canal établi permettant d'identifier le canal spécifique. L'unité de commande du syntoniseur (10) est capable de détecter le canal réglé par le syntoniseur (10) dès la syntonisation par le récepteur de télévision (14) d'un canal de base prédéterminé.
Patent CA-2262626-A1 (CA)
Inventor: HSIEH RICHARD W
IPC: B01D24/24
Filed: 1997-07-31
Abstract: A concurrent backwash distribution apparatus for a filter (11) having a filter tank (13) and a plurality of underdrain laterals (24) includes a baffle (10) positioned in a common main conduit (12) to define a secondary flume (14) between the baffle (10) and the underdrain laterals (24). The secondary flume (14) is in fluid communication with common main conduit (12) and the underdrain laterals (24). The baffle (10) has at least one flume liquid metering orifice (16) located adjacent a bottom of the baffle (10) so that it is below a gas liquid interface (23) in the secondary flume (14) during concurrent gas/liquid backwash operations. A flow distribution plate (18) is positioned between the secondary flume (14) and the underdrain laterals (24), the flow distribution plate (18) having at least one liquid metering orifice (22) and at least one gas metering orifice (20). The baffle (10) may be an upstanding partition (26) or an L-shaped partition (30). The baffle (10) creates adequate room for low velocity flow of backwash liquid in flat bottom flumes, while at the same time providing clearance for flow of backwash gas.
Patent CA-2266256-A1 (CA)
Title: Wire retention mechanism for a broom
Inventor: JACOBS NEAL
IPC: A47L13/38
Filed: 1999-03-22
Abstract: A broom hub is provided for use as a component in the manufacture of brooms which includes a wire retention mechanism. Generally, brooms include a handle, a plurality of bristles extending therefrom, and a wire wrapped around the bristles to secure the bristles to the handle. Specifically, the broom hub of this invention includes a sleeve for receiving the handle and a wire retention mechanism disposed on a sleeve. Preferably, the wire retention mechanism is configured to grasp the wire.  Accordingly, the bristles are secured to the handle between the broom hub and the wire.
Patent CA-2266314-A1 (CA)
Inventor: SZCZEPANIAK A ZBIGNIEW
IPC: H01L21/56
Filed: 1998-07-22
Abstract: La présente invention concerne une composition de résine thermodurcissable utile comme composition de matière de remplissage d'espace inférieur, qui permet de remplir rapidement l'espace inférieur d'un dispositif de semi-conducteur, tel qu'un ensemble puce à protubérances comportant une puce de semi-conducteur montée sur un substrat porteur; de connecter de façon sûre le semi-conducteur au circuit imprimé au moyen d'une réticulation thermique rapide, et d'assurer une bonne productivité; et présente des propriétés de choc thermique (ou des propriétés de cycle thermique) acceptables. La composition de résine thermodurcissable qui est utilisée comme produit de remplissage d'espace inférieur entre un dispositif de semi-conducteur et un circuit imprimé auquel le dispositif de semi-conducteur est connecté électriquement, renferme un constituant de résine époxyde et un constituant de durcisseur latent. Le constituant de durcisseur latent renferme un constituant d'ester de cyanate et un constituant d'imidizole.
Patent CA-2275290-A1 (CA)
Title: Compositions detergentes contenant de l'esterase de cholesterol
Inventor: SHOWELL MICHAEL STANFORD
IPC: C11D3/386
Filed: 1996-12-20
Abstract: L'invention concerne des compositions détergentes, dont des détergents à vaisselle et à lessive, comprenant une estérase de cholestérol.
Patent CA-2275689-A1 (CA)
Inventor: LEINO HANNU JUHANI
IPC: C11B13/00
Filed: 1997-12-29
Abstract: The present invention relates to a process and apparatus for the cleaning of crude tall oil soap. Crude soap floating on top of a layer of black liquor is cleaned with carbon dioxide, in a tall oil recovery system containing a cleaning vessel (T) for crude tall oil soap and black liquor. Said vessel has a carbon dioxide inlet (6) for introducing cleaning carbon dioxide into the soap. The cleaning vessel (T) is also provided with a black liquor outlet (4) for discharging the black liquor separately from the cleaned soap. The cleaned soap may be acidified so as to provide tall oil.
Patent CA-2277709-A1 (CA)
Title: Improved trailer for carrying loads having a curved configuration
Inventor: MAWJI SAIFUDIN N J
IPC: B62D63/06
Filed: 1999-07-19
Abstract: A frame for a trailer having a trough is disclosed. The frame has a trough for carrying loads having a curved configuration, such as coils, and a subrail extending longitudinally along the trough. At least one axle can be connected to the frame underneath the trough by connecting it to the subrail. Outside beams extend longitudinally along the frame and are connected to the trough. Slots are provided periodically on either side of the trough which are engageable with safety bars to maintain the longitudinal position of the load in the trough. The frame can be used for a lead trailer or a pup trailer, or both, in a B-train configuration.
Patent CA-2279560-A1 (CA)
Inventor: FITZPATRICK BRIAN
IPC: F16D1/10
Filed: 1999-08-03
Abstract: A coupling device for releasably securing a tool to a drive shaft of a drive unit includes a first part fixedly attached to the drive shaft, a second part fixedly attached to the tool, and a locking sleeve. Retraction of the locking sleeve permits insertion of the second part into the first part and extension of the sleeve forces a plurality of balls into a plurality of corresponding ball seats. Displacement of the balls out of the ball seats is inhibited by a frictional engagement between the first part and the sleeve, facilitated by an O-ring.