baber/WOPTO huggingface dataset:
Patent CA-2234025-A1 (CA)
Title: Novel compounds with pharmaceutical properties
Inventor: RUIZ ANGEL MAZON
IPC: A61K31/352
Filed: 1998-04-06
Abstract: A pharmaceutical compound of the formula   (I) in which R1 is C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C3-10 cycloalkyl, C3-10 cycloalkyl-C1-10 alkyl, C3-10 cycloalkyl-C2-10 alkenyl, C3 10 cycloalky-C2-10 alkynyl, optionally substituted phenyl-C1-10 alkyl, optionally substituted phenyl-C2-10 alkenyl, optionally substituted phenyl-C2-10 alkynyl, optionally substituted naphthyl, optionally substituted naphthyl-C1-10 alkyl, C1-10 alkoxy-C1-10 alkyl, C3-10 cycloalkoxy-C1-10 alkyl, optionally substituted heterocyclyl, optionally substituted heterocyclyl-C1-10 alkyl, optionally substituted phenyl fused to C5-10 cycloalkyl, optionally substituted tricyclic, optionally substituted tricyclic-C1-10 alkyl, or [optionally substituted phenyl(CH2)n]2-C1-10 alkyl, where n is 0 or 1 to 4, and R2 is hydrogen or one of the values for R1; or a salt or ester thereof.
Patent CA-2234713-A1 (CA)
Title: Underarm compositions
Inventor: CORREIA MARTINHO
IPC: A61K8/00
Filed: 1996-10-04
Abstract: A substantially anhydrous underarm cream composition suitable for topical application to the human skin, comprising an antiperspirant and/or deodorant agent, a non-volatile masking agent, and a structuring wax having the general formula: R - (SiMe2-O-)x SiMe2R where X = 10-50, Me = CH3 wherein R is an alkyl group and the average terminal alkyl chain length is at least C30.
Patent CA-2234737-A1 (CA)
Title: Linear motion bearing fabrication
Inventor: LYON GREGORY
IPC: F16C33/64
Filed: 1996-10-08
Abstract: A method of forming a rail having an elongate base member (26A) and a load bearing insert (34) is disclosed. The method includes forming a base member having surfaces with at least one longitudinal groove (32A) and inserting the load bearing insert (34) into the longitudinal groove (32A). Inserting of the load bearing insert may be performed by flexing the load bearing insert to fit into the longitudinal groove. The surfaces (40A) of the base member adjacent the longitudinal groove may be subsequently crimped to secure the load bearing insert.
Patent CA-2234738-A1 (CA)
Title: Method and apparatus for cancelling multi-channel echo
Inventor: SUGIYAMA AKIHIKO
IPC: H04M1/60
Filed: 1998-04-14
Abstract: The present invention relates to a method and apparatus for cancelling an echo in a system, in order to improve the quality of sound significantly.      Switch (141) continuously switches between received signal and a supplemental signal, which is obtained by processing the received signal (2) through filter (145). Accordingly, adaptive filters (122) and (124) operate sometimes by using received signal (2) as the input signal and sometimes by using the supplemental signal as the input signal, so that it is possible to obtain adaptive filter coefficients by using twice the number of conditional equations as the case of using only received signal (2) as the input signal. As the adaptive filter coefficients do not become indefinite, it is possible to converge the coefficients to the correct values. Further, by making the switching period between the original and the supplemental signals to be longer than the sampling period of the received signal, it is possible to suppress aliasing distortion of the received signal directly supplied to a speaker and to maintain better sound quality.
Patent CA-2236642-A1 (CA)
Title: Post-consumer recycled plastics
Inventor: SCAROLA LEONARD SABASTIAN
IPC: C08J11/06
Filed: 1996-11-01
Abstract: A process comprising contacting PCR polyolefin chips containing volatile impurities with a heated gas at a superficial velocity sufficient to subtantially reduce the volatile impurities. This process is found to cause the chips (i) to be essentially free of odors and (ii) subject to resin composition and prior use, to meet FDA regulations for direct food contact.
Patent CA-2237073-A1 (CA)
Title: A method of preparing 1,1-dialkoxycycloalkanes
Inventor: SUBRAMANIAM CHITOOR S
IPC: C07C41/56
Filed: 1994-05-27
Abstract: 1,1-Dialkoxycycloalkanes of the structure (see formula II) wherein R1 and R2 are different or the same alkyl moieties and can be a saturated, unsaturated, branched, unbranched or cyclic alkyl moiety of 1 to 3 carbon atoms, and n is an integer from 4 to 9, are prepared by reacting with the imino ether hydrochloride more secondary alkanol and a cycloalkanone having to 10 carbon atoms.
Patent CA-2239824-A1 (CA)
Title: Auxiliary damper for rubber suspension mountings
Inventor: GWINN JAMES T
IPC: F16F7/08
Filed: 1996-07-30
Abstract: An auxiliary damper (12) is provided for a passenger cab (13) on heavy equipment or the like, the damper (12) being contained within the confines of the primary suspension system (11) and being secured to a first one of a supported element and a support to provide surface effect damping as needed to damp high-amplitude, low-frequency vibration in the region of the resonant frequency of the primary suspension (11). An elastomeric sleeve (16) is bonded to a rigid sleeve member (14) which surrounds the securement bolt (17) for the primary mount. A spool member (18) with internal protrusions (26) engagingly surrounds the elastomeric sleeve (16). The spool (18) has upper and lower flanges (22, 24) which overlie and underlie, respectively, in non-engaged relationship, the second of a supported element and a support. When there is low-amplitude, high frequency motion of the support, this non-engaged relationship allows the supported element to be isolated from such motion. When the amplitude of the vibration becomes large enough as, for example, near resonance, the spool (18) of the auxiliary damper (12) engages its supported element or support and dissipates the vibrational energy as heat to effectively damp the large amplitude motion and maintain a comfortable ride.
Patent CA-2244034-A1 (CA)
Inventor: UCHIDA KAORU
IPC: G06T7/00
Filed: 1998-07-28
Abstract: The present invention relates to a skin pattern feature extracting apparatus for skin pattern images such as fingerprints, palm prints or ridge patterns of other parts of the body.        An original image is held in an image holder, and displayed on an image display to be viewed by the operator. The operator inputs the angle of rotation and ratio of compression of a focal point of the original image for observing ridges more clearly. A perspective transforming unit generates a resultant image according to a corresponding perspective transformation (i.e., affine transformations), and a perspective transformed image display displays the resultant image to the user. The operator performs manual plotting and manual tracing with reference to the resultant image. The result of the operations is inputted to and recorded in the manual input unit, and transformed in a feature data transforming unit to feature data.
Patent CA-2244062-A1 (CA)
Title: Membrane cap for blood-sampling tube
Inventor: SARSTEDT WALTER
IPC: A61B5/15
Filed: 1998-09-04
Abstract: A cap for a blood-sampling tube has a collar adapted to fit on the tube and a tubular extension extending from the cap, defining an axis and having an outer end remote from the cap. An annular wall is formed inside the cap spaced from the outer end and an annular lip projects axially backward from the outer end and has an outer surface spaced radially inward of an inner surface of the extension and an axially directed inner end. A pierceable flat membrane in the extension on the annular wall snugly engages the inner surface of the extension and has an outer face spaced axially from the inner end of the lip. The lip has an inner surface defining a cylindrical passage of a predetermined diameter and the wall has an inner edge defining a similarly dimensioned coaxial annular passage.
Patent CA-2244409-A1 (CA)
Inventor: SCHLEMMER ROBERT P
IPC: G01V3/20
Filed: 1998-07-31
Abstract: A well logging fluid is provided having a relatively non-conductive fluid and an effective amount of an electrically conductive fiber sufficient to modify the electrical characteristics of the relatively non-conductive fluid resulting in a modified fluid or well logging fluid such that an electrical well-logging tool when disposed in the modified fluid can perform an electrical well-logging survey of a borehole containing the modified fluid. The non-conductive fluid is selected from the group consisting of a non-aqueous fluid and an invert emulsion of an aqueous phase in a non-conductive liquid. In an invert emulsion, the aqueous portion thereof ranges up to about 70 percent by volume. Preferably, the modified fluid or well logging fluid has an electrical stability of at most 350 volts, more preferably at most 250 volts, as measured according to API RB 13-2. The well logging may be used for electric well logging and imaging.
Patent CA-2247273-A1 (CA)
Title: Article abrasif reticulable par exposition a un rayonnement, recouvert d'un produit d'accrochage et procede correspondant
Inventor: STOETZEL WILLIAM L
IPC: B24D11/00
Filed: 1997-01-30
Abstract: Cette invention concerne un procédé de préparation d'un article abrasif ainsi que l'article abrasif fabriqué à l'aide de ce procédé. Le procédé consiste à utiliser une couche de support ayant une première surface principale, à recouvrir cette première surface principale avec un précurseur de produit d'accrochage contenant un premier composant réticulable par exposition à un rayonnement, à appliquer une pâte abrasive sur cette première surface principale de la couche de support après l'avoir recouverte du précurseur de produit d'accrochage, ladite pâte épaisse comportant une pluralité de particules abrasives et un précurseur de liant contenant un second composant réticulable par exposition à un rayonnement. Le procédé consiste ensuite à provoquer une réticulation au moins partielle du précurseur de produit d'accrochage, et à provoquer une réticulation au moins partielle du précurseur de liant de façon à former un article abrasif, ledit article abrasif formé comportant une couche de support, une couche abrasive et une couche de produit d'accrochage intercalée entre la couche de support et la couche abrasive. De préférence, le procédé permet la formation d'un article abrasif structuré.
Patent CA-2248205-A1 (CA)
Title: Trolleys for serving hot and cold meal trays
Inventor: GRANDI RENE
IPC: A47J39/00
Filed: 1996-03-08
Abstract: An improvement to patent no. PCT/FR 95/01157 relating to a trolley for serving hot and cold meal trays, which trolley provides reheating and refrigeration, has a self-contained store of negative kilocalories and enables negative kilocalorie regeneration, is disclosed. The trolley comprises an insulated housing (2) containing the meal trays (3) and consisting of a permanent refrigeration area (4) and a mixed area (5) for reheating. Refrigeration is provided by two cold-transfer fluid stores (7, 7'), one for the permanent refrigeration area and one for the mixed area, in which the condensers (11) of two heat pipes are immersed, while their respective evaporators (12) enable the two areas to be cooled separately by means of turbines (13, 14) ventilating the negative kilocalories on the meal trays. An electric valve (15) is used to retain the fluid inside the condenser during reheating in the mixed (cold then hot) area. Said trolley is useful for serving meal trays that include one part with hot food and another with cold food and must be kept at a low temperature while the appropriate part of the tray is reheated prior to serving the hot food.
Patent CA-2249307-A1 (CA)
Title: Migrating combustion chamber engine
Inventor: ERICKSON FREDERICK L
IPC: F02B59/00
Filed: 1997-03-25
Abstract: A migrating combustion chamber engine having a stationary power block housing (1), combustion chamber member (4), orbiting piston (5) and crankshaft (6) wherein the combustion chamber member (4) reciprocates inside and relative to the power block housing (1) and the orbiting piston (5) reciprocates inside the combustion chamber member (4) whereby two combustion chambers (14/15) are formed. A plurality of strip seals (17) between the combustion chamber member (4) and the orbiting piston (5) with the seals adapted to respond to the pressure of combustion to increase contact pressure to retain gases in the combustion chambers (14/15).
Patent CA-2249324-A1 (CA)
Title: Polymeric strands with high surface area and methods for making same
Inventor: JAMESON LEE KIRBY
IPC: D01D5/28
Filed: 1997-04-28
Abstract: A melt-extrudable polymeric strand with altered physical properties formed by extruding an emulsion comprising a melt-extrudable polymer and an immiscible component while subjecting the emulsion to ultrasonic energy. In one embodiment, a melt-extrudable polymeric strand has a plurality of fissures in the surface of the strand such that the strand has a B.E.T. surface area to six times the B.E.T. surface area of an otherwise identical strand lacking the plurality of fissures.  Desirably, the strand of this embodiment has a B.E.T. surface area of within a range from about 0.10 to about 0.18 m2/g. In a method for making such a strand, the immiscible component of the extrudable emulsion comprises a substance that is an expandable gas upon extrusion. The expandable gas forms the fissures in the strand. According to another aspect, a polymeric strand has a continuous phase which is a melt-extrudable polymer and a disperse phase which is immiscible with the continuous phase. The disperse phase forms discrete pockets of material in the extruded strand and can include a variety of components which alter the physical properties of the strand. Suitable components of the disperse phase include water, aqueous solutions, oils, low melting point metals, and other physical property altering materials.
Patent CA-2249743-A1 (CA)
Title: Rapid setting, high early strength binders
Inventor: FARRINGTON STEPHEN A
IPC: C04B9/04
Filed: 1998-10-07
Abstract: A method for making a cementitious material comprises forming a mixture of water and active ingredients consisting essentially of i) a compound capable of providing, in aqueous solution, magnesium ions, ii) a potassium phosphate compound and iii) optionally an additional phosphate source; wherein forming said mixture is substantially in the absence of ammonia or an ammonium ion-containing compound. A method for repairing a flaw in a cementitious structure comprises applying to the flaw the cementitious binder thus prepared.
Patent CA-2251401-A1 (CA)
Inventor: WELLIG ALAIN
IPC: C07D233/68
Filed: 1998-10-23
Abstract: The invention relates to a process for the catalytic conversion of halogenated hydroxymethylimidazoles to halogenated formylimidazoles. The catalysis takes place in the presence of a peroxide. Halogenated formylimidazoles are important intermediates for pharmaceutically active products.
Patent CA-2251842-A1 (CA)
Inventor: LIVNAH ODED
IPC: G06Q50/22
Filed: 1997-04-28
Abstract: The invention features computer-assisted methods (100, 102, 104, 106, 200, 202, 204) for identifying molecules which will bind to the EPO receptor and act as an erythropoietin (EPO) mimetic. Preferred EPO mimetics identified using the method of the invention act as agonists of the EPO receptor in one or more in vitro or in vivo biological assays of EPO activity.
Patent CA-2252482-A1 (CA)
Title: Apparatus for and method of processing billets in a rolling mill
Inventor: SHORE T MICHAEL
IPC: B21B1/46
Filed: 1998-11-02
Abstract: A rolling mill has roughing, intermediate and finishing roll stands on a first side of a billet reheating furnace, and a breakdown mill on an opposite second side of the furnace. Billets are heated to an elevated rolling temperature in the furnace and are then ejected to the second side of the furnace for rolling in the breakdown mill before being directed back through the furnace for continued rolling into finished products at the first side of the furnace in the roughing, intermediate and finishing roll stands.
Patent CA-2253947-A1 (CA)
Title: A generic frame shaping algorithm
Inventor: PEZESHKI-ESFAHANI HOSSAIN
IPC: H04L47/43
Filed: 1998-11-12
Abstract: A rigorous and efficient algorithm for shaping and/or policing an FB-ATM stream for conformance to a leaky-bucket controller with specified parameters. The well-known Generic Cell Rate Algorithm is shown to be a special case of our algorithm.
Patent CA-2254398-A1 (CA)
Inventor: POTAMINAOS ALEXANDROS
IPC: G10L15/065
Filed: 1998-11-18
Abstract: A system deployed in a telecommunications network includes a terminal device, a telephone network switch, a network service, and an optional network database. The terminal device measures, stores, and transmits to the network service data characterizing the terminal device, an acoustic environment, and optionally data characterizing the speech of a local population. These data can be stored in the network database facilitating long-term adaptation of the network service.
Patent CA-2254399-A1 (CA)
Title: Aqueous fabric softeners having improved handle
Inventor: FENDER MICHAEL
IPC: C11D3/00
Filed: 1998-11-24
Abstract: The invention relates to aqueous laundry fabric softener dispersions based on quaternary triethanolamine fatty acid esters having a defined ratio of triethanolamine to fatty acid, the fatty component having a specific degree of saturation.
Patent CA-2255596-A1 (CA)
Title: Communications webs for pstn subscribers
Inventor: SNELLING RICHARD K
IPC: H04M1/715
Filed: 1998-03-04
Abstract: Systems for connecting telecommunications infrastructure lines (640) to telephones, handsets (300), computers (200), telecopy machines (400) and other end user interfaces or consumer electronics devices in a residence or business. Systems according to the present invention include Network Control Units (100) which form the center of a star topology and which communicate via RF link with Wireless Access Units (200) and handsets (300). Wireless Access Units feature an interface, such as, for example, a standard telephone jack, for accommodating a telephone, a fax machine (400), a compute modem or other device. Computers or other devices may also be accommodated by Wireless Access Units having other physical and virtual interfaces, including, for instance, serial ports (200) or network interfaces. The Wireless Access Units may also be digital to accommodate ISDN or any other digital standard. Wireless control/monitoring accessories may also be employed to communicate with the Network Control Unit (100) and provide additional functionality such as entrance monitoring, baby monitoring, HVAC control and other services.
Patent CA-2257762-A1 (CA)
Inventor: WEINBERG ALAN S
IPC: B29C48/10
Filed: 1999-01-06
Abstract: A method includes the steps of providing a tubing having an inner annular layer comprising a crosslinked polymeric material, and an outer annular layer comprising a non-crosslinked polymeric material, or a material that is crosslinked to a lesser extent than the material of the inner layer;  longitudinally slitting the tubing to form a folded film; and reverse centerfolding the folded film to provide a folded film having a lateral slit edge, and a lateral folded edge opposite said lateral slit edge, such that the inner annular layer becomes an outer layer, and the outer annular layer becomes an inner layer. A bag can be made from the reverse centerfolded film , and an article such as food can be packaged in the bag.
Patent CA-2260768-A1 (CA)
Title: Methods for producing sphingolipids and sphingolipid derivatives
Inventor: KURITA TOYOHISA
IPC: C07C231/02
Filed: 1997-07-17
Abstract: The present invention provides a production method in which a sphingolipid or a sphingolipid derivative having a modified or substituted long chain fatty acid bonded to a sphingoid is specifically synthesized from a sphingolipid or the like, and a sphingolipid or a sphingolipid derivative obtained by the production method. It is characterized in a method for producing a sphingolipid or a sphingolipid derivative, which comprises the step of enzymatically reacting a sphingolipid with an aliphatic carboxylic acid or the like using an enzyme which can specifically hydrolyze an acid-amide bond between a sphingoid and a fatty acid in a sphingolipid or the like to obtain another sphingolipid or sphingolipid derivative having a different fatty acid chain.
Patent CA-2261415-A1 (CA)
Title: Method and apparatus for extracting oil
Inventor: WAKEFIELD ANTHONY WALBY
IPC: E21B43/00
Filed: 1999-02-09
Abstract: A downhole pump for the extraction of oil/petroleum comprises a motive fluid conduit for the conveyance of a motive flow, and a transport conduit connected to the motive fluid conduit for the conveyance of the induced flow and motive flow to the surface. The transport pipe includes a suction inlet for intake of the induced fluid, and houses a jet pump. The transport pipe and/or motive fluid pipe are configured to produce an annular or cylindrical motive jet through the nozzle, whereby an axial induced flow is produced through the suction inlet. The downhole pump therefore comprises an annular jet pump.
Patent CA-2262760-A1 (CA)
Title: Tickets stored in smart cards
Inventor: MULLER FRANK
IPC: G07B15/00
Filed: 1997-08-07
Abstract: In a smart card (1) electronic tickets (20) are securely stored. Ticket data may be written into the fields (21, 22, 23) of a ticket (20) in a protected manner using a special code. Tickets (20) may comprise several fields: an entitlement field (21), a validation field (22), and preferably also a verification field (23). Preferably, a different key (K1, K2, K3) is used for each type of field. A further protection of the integrity of the tickets is obtained by using a first storage command (UPDATE) to prepare a field when issuing the ticket and using a different, second storage command (WRITE) when validating the ticket. Thus the fraudulent modification of an issued ticket is prevented.
Patent CA-2263287-A1 (CA)
Title: Improved iontophoretic drug delivery device and method of manufacturing the same
Inventor: GROSS JOSEPH
IPC: A61N1/30
Filed: 1998-02-27
Abstract: This invention is an iontophoretic drug delivery device comprising a flexible reservoir (16) sandwiched between a flexible printed circuit board (12) and a pair of flexible electrodes (20, 21). A rigid top cover is mounted on a spine on the reservoir by means of snap-fit connections. The rigid cover protects the device from damage while the flexible reservoir, circuit board and electrodes can conform to the skin of a subject. The configuration of the flexible elements allows the manufacturing process to be simplified considerably, resulting in a less expensive device with ease of fabrication.
Patent CA-2266310-A1 (CA)
Title: Real-time audio to data and data to audio converter
Inventor: GARIEPY DONALD JOSEPH
IPC: H04M7/00
Filed: 1999-03-23
Abstract: A real-time audio to data and data to audio converter for use in transmitting an audio converted to data signal, typically a telephone conversation, over a data transport system, such as the Internet. The converter is hardware and thereby eliminates delays inherent in a software converter and eliminates the need for computer calculation . The converter is positioned at the access site of a data transport system and comprises a telephone interface for linking telephone lines to the converter. The telephone interface is attached to a transmitter and a receiver, whereby the telephone interface receives audio signals and transmits the audio signal to a real-time converter. The real-time converter converts the audio signal received from the telephone interface to a data signal, the data signal is transmitted by the transmitter to a data transport system.   The receiver receives the data signals from the data transport system, sends the data signals to the converter, whereby the data signals are converted back to audio signals to be routed to the recipient as audio signals. A method for converting audio signal to data signals and data signals to audio signals in real time is also disclosed.