baber/WOPTO huggingface dataset:
Patent CA-2219916-A1 (CA)
Title: Preparation of pre-coated aluminum alloy articles
Inventor: KEENER STEVEN G
IPC: B32B15/08
Filed: 1996-05-01
Abstract: An aluminum-alloy article such as a fastener or rivet (40) is prepared by providing an aluminum-alloy article precursor that is not in its final heat-treated state, and in one form is in its solution treated/annealed state. A curable organic coating material is also provided. The method includes anodizing the article precursor, preferably in chromic acid solution and without chemical sealing during anodizing, applying the organic coating material to the aluminum-alloy article precursor, and precipitation heat-treating the coated aluminum article precursor to its final heat-treated state, thereby simultaneously curing the organic coating. If the aluminum alloy temper is of the naturally aging type, it is optionally lightly deformed prior to precipitation treatment aging. The approach may also be applied to articles that are not solution treated/annealed and aged, by first overly deforming the article precursor so that the curing treatment of the coating also partially anneals the article precursor to the final desired deformation state.
Patent CA-2219953-A1 (CA)
Title: Automated directory assistance system utilizing a heuristics model for predicting the most likely requested number
Inventor: GUPTA VISHAW
IPC: G10L15/00
Filed: 1997-10-30
Abstract: The invention relates to an automated directory assistance system that utilizes a heuristics model for predicting the most likely requested number. Each orthography link in the speech recognition dictionary pointing toward an entry in the white pages is associated with a data structure that provides a probability value of that link pointing toward the telephone number intended by the user on the basis of locality information specified by the user of the automated directory assistance system.
Patent CA-2220996-A1 (CA)
Inventor: RETTORI MARIE-CLAIRE
IPC: A61K31/428
Filed: 1997-11-06
Abstract: Dérivés de formule générale (I): (voir figure I) où A, X, R1, Y, n et Ar sont définis dans la description. Médicaments.
Patent CA-2221578-A1 (CA)
Inventor: REYNOLDS GARY MACK
IPC: B32B37/14
Filed: 1997-12-03
Abstract: This invention relates to apparatus and methods for fabricating a composite web having transverse stretch.  In one embodiment a forming plow forms at least one groove in a first web of material.  An applicator roll applies a second web of transversely stretchable material to the first web while maintaining a facing portion of the second web in facing relationship with, and spaced from, the portion of the first web formed in the groove. Urging apparatus, such as a push roll having an axis, can intermittently urge the second web into the groove and thereby into surface-to-surface relationship with the first web over substantially the entirety of the facing portion of the second web.  The webs can be secured by e.g. an adhesive, applied to portions of the first and/or second web, or by ultrasonic bonding, to thereby fabricate the composite web.  In another embodiment, a vacuum roll receives and forms at least one groove in the first web and advances the first web to a nip roll that secures a reference surface of the first web to the second web in a nip formed by the vacuum roll and the nip roll while maintaining the groove in the first web.  The webs are then advanced to an urging apparatus including a mating roll that mates with the vacuum roll to stretch and urge a facing portion of the second web inwardly into the groove and into securement with the first web thereby to fabricate the composite web.  Alternative embodiments can have multiple grooves rather than a single groove.
Patent CA-2223902-A1 (CA)
Inventor: YOUNG FREDERICK
IPC: B29C47/00
Filed: 1996-06-07
Abstract: A process for making a protective and decorative surfacing film comprises extrusion coating a first optically clear layer (10) of uniform thickness onto a smooth surface of a carrier (12). The first layer is cooled and followed by coating with a second layer of pigmented material (22). The composite paint coat is transferred to a supportive backing sheet or panel, after which the carrier is separated from the paint coat, to expose the outer surface of the first layer as a high gloss surface with high distinctness-of-image, providing a transparent protective outer coat for the underlying pigmented second layer.  Coating may be done by extrusion, coextrusion, or solvent casting.
Patent CA-2227628-A1 (CA)
Title: Oxydes d'aluminium abrasifs sous forme de sol-gel ameliores
Inventor: BAUER RALPH
IPC: C04B35/10
Filed: 1996-06-21
Abstract: L'invention porte sur l'utilisation de matières de fabrication purifiées servant à la production d'un oxyde d'aluminium sous forme de sol-gel avec germes dont les qualités sont supérieures.
Patent CA-2227653-A1 (CA)
Inventor: GROVER DOUGLAS B
IPC: A47B25/00
Filed: 1998-01-21
Abstract: A tilt and roll support for pool tables and other game tables having a frame attached to the underside of the table. The opposite ends of the frame have pivot shafts which are axially aligned with the longitudinal axis of the table.  Support assemblies at the ends of the table are pivotally about the pivot shafts so the table may be rotated between a vertical stored position and a horizontal use position. The lower portion of the support assemblies are retractable against the bottom of the table for storage and may be extended to a vertical position. The lower portion of the support assemblies are on rollers or casters and are extendible so the weight of the table may be transferred to the tilt and roll supports for movement and storage. When the table is in use, the table is supported on conventional legs.
Patent CA-2228985-A1 (CA)
Inventor: BROUILLETTE DANY
IPC: H01M4/36
Filed: 1998-02-09
Abstract: Sulfamides or mixtures thereof having the formula wherein one to three R substituents are methyl groups, the remainder being ethyl groups, or one R is a methoxyethyl, the remaining R being methyl or ethyl groups. They are useful as electrolytic composition with outstanding conductivity and aprotic solvents. An electrolyte comprising them is highly useful in a lithium battery, a supercapacity type device, an electrochomic device or as a component of a solvent.
Patent CA-2231716-A1 (CA)
Inventor: BURKE DENNIS W
IPC: A61B17/16
Filed: 1998-03-11
Abstract: A method and apparatus for centering the stem of a femoral hip prosthesis in the cavity formed in the medullary canal in the proximal end of the femur. The apparatus includes a sleeve or other like device which is mounted onto the neck of the femoral hip prosthesis and which contains at least two projections extending from a lower surface thereof which are adapted to seat in correspondingly formed slots disposed on the upper proximal surface of the femur bone. The slots are positioned such that when the projections reside therein, the stem is centered within the cavity. The slots and projections are elongated in a direction generally transverse to the direction of elongation of the stem, and in this direction of elongation each slot and associated projection is not parallel to the other slot and associated projection. The device of this invention may be used either with prosthesis having a collar, or with a collarless prosthesis.  The method of this invention includes the step of mounting a sleeve or other like device on the neck of a femoral hip prosthesis and inserting projections on the device into previously formed slots disposed on the upper proximal surface of the femur bone.
Patent CA-2232907-A1 (CA)
Title: Rack and pinion steering system for four wheel drive vehicle
Inventor: KLOSTERHAUS EDWIN G
IPC: B62D7/20
Filed: 1998-03-20
Abstract: A steering system (10) for a four wheel drive, live axle vehicle (12) includes a rack and pinion steering gear assembly (80) including an elongate rack (100) having a longitudinal axis (102) and extending axially through a rack housing (82).  The rack (100) is movable axially in the rack housing (82) in response to rotation of the vehicle steering wheel (104).  A first end portion (108) of the rack (100) projects axially from the rack housing (82).  A drag link (60) is connected between the first end portion of the rack and one of the first and second steering              , arms (40, 44) for transmitting steering force to the one (40) of the first and second steering arms.  The drag link (60) is pivotally connected with the rack (100) at a location (130) on the rack axis (102). The drag link (60) has a kinematic axis (68) which extends generally parallel to the rack axis (102).
Patent CA-2233291-A1 (CA)
Title: Optical communication system
Inventor: WAKE DAVID
IPC: H04B10/2575
Filed: 1996-10-11
Abstract: An optical distribution system is used for a signal to be transmitted at radio frequencies, for example to mobile telephone users. High frequency (LO) and Intermediate Frequence (IF) signals are modulated onto optical supercarriers.  The optical signals are distributed via an optical network to one or more remote sites. An integral mixer/detector at the remote site both mixes the signals and converts them to the electrical domain, thereby generating the RF  electrical signal required for transmission. In a preferred embodiment, the mixer/detector is a Heterojunction Bipolar Transistor.
Patent CA-2233978-A1 (CA)
Title: Linestopping system
Inventor: BROWN STEPHEN REGINALD
IPC: F16L55/134
Filed: 1996-10-04
Abstract: A linestopping system for pipes includes first and second linestopping means (10a, 10b), each linestopping means including an inflatable plug (50), an inflation means (90) and an insertion means (34) and first and second branch pipe supports (20) each having an apertured flange (22) with a pipe section (24) mounted thereon at an acute angle, each pipe section containing a valve (28). In use, the pipe supports are disposed on a pipe in spaced apart locations with the pipe sections facing in opposite directions such that upon apertures being cut in the pipe at the pipe supports the inflatable plugs of respective linestopping means are inserted by the insertion means through the apertures in the pipe and subsequently inflated by the inflation means so as to seal off a section of the pipe. Each insertion means includes a plurality of sets of hydraulic clamps, a first set of clamps being fixed relative to the insertion means and a second sets of clamps being movable relative to the insertion means, such that the first and second sets are relatively moveable so as to cause insertion of the respective inflatable plug into the pipe. A bypass pipe (102) extends between the first and second linestopping means to allow fluid flow to be maintained when the section of the pipe is sealed off.
Patent CA-2234018-A1 (CA)
Inventor: SEDOVIC JOHN A
IPC: F21V23/00
Filed: 1998-05-01
Abstract: The present invention provides a collapsible lantern including a base adapted to house a power source, and a telescoping portion movable, relative to the base, between an extended position and a collapsed position. The telescoping portion includes a light source electrically connected to the power source. A switch electrically connected between the power source and the light source interrupts the electrical connection between the power source and the light source when the telescoping portion is in the collapsed position.
Patent CA-2235622-A1 (CA)
Title: Mass flow gravity feed apparatus for charging metal-melting furnaces with dross level compensator and method for charging metal-melting furnaces therewith
Inventor: AREAUX LARRY D
IPC: C21C5/46
Filed: 1997-08-28
Abstract: A mass flow gravity feed furnace charger apparatus includes a charge well cover (30) having an aperture (33), and an essentially vertical conduit (51) for forming a substantially vertically oriented column of metal chips or scrap within and above the aperture (33), and a structure (SS) for bringing both the charge well cover and conduit into position above a charge well (10). The conduit (51) is rapidly moveable up and down to force metal chips or scrap into molten metal (22) in the charge well (10) even when the dross level (23A) at the surface of the molten metal (23) is considerable, so that the apparatus and corresponding method permit charging when the gravity feed alone is not sufficient or sufficiently rapid.
Patent CA-2236995-A1 (CA)
Inventor: ZHANG LINA
IPC: H04R9/00
Filed: 1998-06-10
Abstract: This invention is a loudspeaker that consists of some vibratory membranes and magnets. Every vibratory membrane is a part of a soft conductive tape and is put in a magnetic field. When the membranes conduct audio current, they vibrate air directly with their surfaces, and produce sound waves. This loudspeaker can be made into various shapes. It has overcome the defect of sound distortion caused by the diaphragm deformations in regular loudspeakers. Its distortion is lower, its transient response is excellent, and its voice quality and acoustic effects are admirable.
Patent CA-2237872-A1 (CA)
Inventor: TOMIOKA NOBUO
IPC: G06F17/50
Filed: 1996-11-13
Abstract: A method for selecting a candidate lead compound bondable to a biopolymer as a receptor from a data base containing information on atomic types of compounds and the mode of their covalent bond, comprising the step of selecting a candidate lead compound from the compounds stored in the data base on the basis of quantitative, two-dimensional and/or three-dimensional information of at least one query molecule bondable to the biopolymer. The query molecules can be obtained by an automatic structural construction method, for example.  The candidate lead compound bondable to the biopolymer can be quickly retrieved by using an ordinary personal computer or work station without requiring enormous calculations.
Patent CA-2238240-A1 (CA)
Title: Vehicle hitch securable carrying apparatus for golf bags and the like
Inventor: D ANGELO MARY
IPC: B60R9/08
Filed: 1998-05-22
Abstract: A carrying apparatus for use with a vehicle having a rearwardly projecting hitch engaging portion and capable of supporting an elongate article such as a golf bag containing a plurality of golf clubs. A substantially horizontally disposed and planar shaped base supports a lower end of the elongate article and includes an upwardly projecting edge extending around a perimeter of the base. An elongate support is secured at a lower end to said base and extends upwardly therefrom so as to terminate at an upper end. A cross member is secured at a location proximate the upper end of the elongate support and includes a first laterally extending support portion and a second opposite and laterally extending support portion for engaging an upper end of the supported elongate article. A hitch receiving portion extends from the elongate support and includes an inserting end which is engaged by the vehicle hitch engaging portion so that the carrying apparatus is mounted in a suspended and rearwardly extending manner from the vehicle. A locking pin inserting through overlapping apertures formed in the hitch engaging portion and hitch receiving portion and preventing disengagement of the carrying apparatus from the hitch engaging portion.
Patent CA-2238254-A1 (CA)
Inventor: KALER KARAN V I S
IPC: B01D57/02
Filed: 1998-05-22
Abstract: A dielectrophoretic apparatus provides a planar structure with linear electrodes in which electric field distributions provide directional control of particles. In one embodiment, particles are radially focussed by a planar structure that mimics a cone-plane structure. In another embodiment, an isomotive structure is formed between two plane parallel plates.
Patent CA-2240537-A1 (CA)
Inventor: DIEFENBACH STEVEN P
IPC: C08F10/00
Filed: 1997-01-22
Abstract: La présente invention concerne des composants catalyseurs de la polymérisation d'oléfine, tels que les aluminoxanes et des systèmes catalyseurs tels que les catalyseurs aluminoxane/métallocène. Le procédé de réalisation consiste, sous une pression superatmosphérique, à mettre des composants catalyseurs en contact avec le support.
Patent CA-2242911-A1 (CA)
Inventor: ANDERSEN THOMAS T
IPC: A61K35/12
Filed: 1997-01-15
Abstract: L'invention à trait à des peptides comportant la séquence d'acides aminés aa?1¿-aa?2¿-aa?3¿-aa?4¿-(Gly)¿n?, à des dispositifs à implanter, revêtus de ces peptides, ainsi qu'à des procédés permettant de modifier une adhésion cellulaire à l'aide de ces peptides. Les groupes aa?1¿, aa?2¿ et aa?4¿ représentent, de manière indépendante Lys, Arg, Orn ou, lorsque le groupe est N-terminal, Acp. Le groupe aa?3¿ représente Ala, Gly, Val, Leu, Ile, Ser, Thr, Cys, Met, Asn, Nle, Nva ou Abu. La séquence préférée répond à la formulation: KRSR. Il est possible d'incorporer des peptides contenant des séquences relatives à l'adhésion cellulaire à des substrats ou de les en revêtir pour renforcer l'adhérence ostéoblastique.
Patent CA-2242938-A1 (CA)
Inventor: PINTAURO PETER N
IPC: C25B3/25
Filed: 1997-11-12
Abstract: An electrochemical catalytic process for hydrogenating an unsaturated fatty acid, mixtures of two or more fatty acids having different degrees of unsaturation, or the unsaturated fatty acid constituents of an edible or non-edible oil's triglycerides is performed using a solid polymer electrolyte reactor. The anode and cathode catalyst materials are used to fabricate membrane electrode assemblies consisting of a cation exchange membrane onto which porous anode and cathode electrodes are attached. As the electrodes are permeable, reactant and products enter and leave the membrane/cathode and membrane/anode reaction zones via the back sides of the electrodes. During the electrochemical oil hydrogenation process, hydrogen is generated in situ by the electroreduction of protons that are formed at the anode and which migrate through the ion exchange membrane for reaction with the unsaturated fatty acids. A novel partially hydrogenated oil product selected from the group consisting of a partially hydrogenated fatty acid, a partially hydrogenated triglyceride, or mixtures thereof is produced by the disclosed process.
Patent CA-2244080-A1 (CA)
Title: Methods and apparatus for blocking flow through blood vessels
Inventor: EVARD PHILIP C
IPC: A61F2/90
Filed: 1997-01-31
Abstract: This invention is methods and apparatus for occluding blood flow within a blood vessel (22). In a first series of embodiments, the present invention comprises a plurality of embolic devices (16) deployable through the lumen (12) of a conventional catheter (10) such that when deployed, said embolic devices (16) remain resident and occlude blood flow at a specific site within the lumen of the blood vessel (22). Such embolic devices (16) comprise either mechanical embolic devices that become embedded within or compress against the lumen of the vessel or chemical vaso-occlusive agents that seal off blood flow at a given site. A second embodiment of the present invention comprises utilization of a vacuum/cauterizing device capable of sucking in the lumen of the vessel about the device to maintain the vessel in a closed condition where there is then applied a sufficient amount of energy to cause the tissue collapsed about the device to denature into a closure. In a third series of embodiments, the present invention comprises the combination of an embolization facilitator coupled with the application of an energy force to form an intraluminal closure at a specified site within a vessel.
Patent CA-2247134-A1 (CA)
Title: External valve operating means
Inventor: SCAPES JOHN N
IPC: F16K5/06
Filed: 1997-01-08
Abstract: An external valve operating means (51) that forms a seal (71) around the rotating valve stem (11) of a valve (3) operating under internal pressure is disclosed. This seal (71) prevents the escape of fluids should the valve's primary seals (29, 37) fail. The external valve operating means (51) allows for rotation of the valve stem (11) without removal or compromise of the seal. A stationary operating seal cap (53) is in threaded and sea led engagement with the valve body (5). Upon partial disengagement of the stationary operating seal cap (53), the pressure within the external valve operating means (51) is vented. An external valve stem drive (63) protrudes through the top of the stationary operating seal cap (53). An O-ring (71) forms a seal between the two. The bottom of the external stem drive (63) mates with the rotating valve stem (11) while the top of the external stem drive (77) is shaped so as to allow gripping by a tool. Rotation of the external stem drive (77) via the tool effects rotation of the valve stem (11) while the seal (71) surrounding it is maintained.
Patent CA-2252238-A1 (CA)
Inventor: SEBREE MICHAEL A
IPC: G06F9/48
Filed: 1998-10-28
Abstract: A method and apparatus for allowing a first thread to "share" its remaining time quantum with a second thread when the first thread is blocked. A thread may be blocked, for example, if it is waiting for a resource such as a data file or a lock. A thread may also be blocked if it is waiting foran event, such as a user keystroke. If there is a thread on the run queue that "owns" the resource needed by the consumer thread, the blocked consumer thread transfers its right to execute for a remaining time quantum to the owner thread, and the owner thread executes next. If the threads are in a same process, this transfer means that no process context switch is required, since the consumer thread and the owner thread are threads of the same process. In addition, this transfer means that the time before the resource becomes available to the blocked consumer thread will be short. Similarly, if a consumer thread is blocked to await an event, such as a user keystroke, the blocked consumer thread's remaining time quantum are transferred to another thread in that is waiting on the run queue for its turn to execute. Again, if the threads are in a same process, this transfer avoids having to perform a context switch between processes.
Patent CA-2254685-A1 (CA)
Inventor: SOUTHWORTH ROBERT O
IPC: G06K7/10
Filed: 1998-11-19
Abstract: A data well arrangement is for storing data and for  interfacing with a writing  implement  having  a writing end with a writing tip and data transfer end with a data transfer tip.  The data well arrangement has a housing with an inlet opening for receiving an end of the implement.   A data reader is in the housing for facing the data transfer tip to exchange data with the implement when the data transfer end of the implement is received in the opening.  A shutter in the housing is engageable with an engagement portion of the implement for moving of shutter between a writing end storage position in which the data reader is inaccessible, and an  interface position in which the data reader  is accessible to the data transfer tip with the shutter being  engaged  by  the  engagement  portion  of  the implement, only when the data transfer end is received in this opening.
Patent CA-2255389-A1 (CA)
Title: Method and system for suppressing formation of scale in hot finishing mill system
Inventor: FUKUMORI JUNSOU
IPC: C23F15/00
Filed: 1998-12-04
Abstract: A plurality of finishing mills for finish rolling a rolled material are arranged in a row to form a finishing mill group. A scale breaker is provided at an entry side of the finishing mill group, a glass coating material application device for jetting molten glass to upper and lower surfaces of the rolled material to form a molten glass film is located at a delivery side of the scale breaker, and a molten glass film removing device for removing the molten glass film formed on the upper and lower surfaces of the rolled material is located at the delivery side of the finishing mill group.