baber/WOPTO huggingface dataset:
Patent CA-2156915-C (CA)
Title: Process for preparing active ingredient containing particles by extrusion and lyophilization
Inventor: NGUYEN THANH-TAM
IPC: A23P1/02
Filed: 1994-03-15
Granted: 2005-01-11
Abstract: A method for preparing particles each of which consists of a carrier forming a matrix, and at least one active ingredient uniformly distributed throughout said matrix. The method comprises extrusion and freeze-drying steps, wherein 1) (a) at least one active ingredient, (b) a physiologically acceptable hydrophilic carrier, and (c) water are uniformly mixed to give a pasty mixture with a viscosity at room temperature (15-20  DEG C) of under 1 Pa.s; 2) the resulting uniform mixture is extruded and the extrudate is broken up into moist particles; 3) the resulting particles are frozen as they fall under their own weight into an inert gas stream at a below-zero temperature; and 4) said particles are freeze-dried.
Patent CA-2160686-C (CA)
Inventor: SNYDER WILLIAM M
IPC: C07C43/205
Filed: 1994-01-26
Granted: 1998-01-06
Abstract: A novel two-step reaction process for preparing 5-substituted-2-methoxybenzaldehyde compounds is disclosed wherein the substituent group is either isopropyl or trifluoromethoxy. The process involves (1) reacting a corresponding 4-substituted phenol compound with dimethyl carbonate in the presence of a tertiary-amine base to form the corresponding 4-substituted anisole compound, and (2) thereafter subjecting the latter intermediate product obtained in the first step to aromatic C-formylation on the ring with hexamethylenetetramine in the presence of trifluoroacetic acid, followed by hydrolysis, to ultimately yield the desired aldehyde compound. The two aromatic aldehyde compounds so obtained, viz., 2-methoxy-5-trifluoromethoxybenzaldehyde and 2-methoxy-5-isopropylbenzaldehyde, are known to be useful as intermediates that specifically lead to (2S,3S)-cis-3-(2-methoxy-5-trifluoromethoxybenzyl)amino-2-phenylpiperidine and (2S,3S)-cis-2-(diphenylmethyl)-N-[(2-methoxy-5-isopropylphenyl)methyl]-1-azabicyclo[2.2.2.]octane-3-amine, respectively. The latter final products, in turn, are both known to be useful in the field of medicinal chemistry as substance P receptor antagonists.
Patent CA-2162939-C (CA)
Title: Terabit per second packet switch
Inventor: CLOONAN THOMAS JAY
IPC: H04L12/56
Filed: 1995-11-15
Granted: 2001-12-18
Abstract: A physically realizable one terabit or more ATM packet switch 10 A that has a large number of input interfaces connected to a single stage switching fabric 14A which is in turn connected to a number of output modules 160-16 m, accordingto the generic growable packet switch architecture. This ATM packet switch 10 A is different from other growable packet switches in that it has a single stage switch fabric (14A or 14B) controlled by an out-of-band controller 20, yet it has significantly reduced complexity with respect to comparably sized electronic crossbar switches or their isomorphs. This ATM packet switch architecture is so flexible, it can be extended to provide variable length packets, circuit switched connections and fault tolerant redundant circuits using the same switch fabric and out-of-band controller architectures.
Patent CA-2165370-C (CA)
Inventor: CRACRAFT MARK A
IPC: H01H13/70
Filed: 1995-12-15
Granted: 2001-12-11
Abstract: An appliance control panel having selective backlighting includes a selection area that is normally visible to the operator including an "OPTIONS" switch. By pressing the "OPTIONS" switch, a plurality of lamps are illuminated.  The light from the lamps passes through an assembly of overlays and illuminates a set of optional switches that are not normally visible. The incandescent lamps are positioned partially within a clear plastic mounting plate with a lamp on each side of the optional switches.  the clear mounting plate is masked on both sides except for areas on the plate that form depressions around each optional switch.  The light is trapped between the masks and escapes through the overlay assembly, illuminating the optional switches.
Patent CA-2168418-C (CA)
Title: Process for ethylbenzene production
Inventor: BUTLER JAMES
IPC: C07C2/66
Filed: 1996-01-30
Granted: 2007-04-17
Abstract: A process is disclosed for producing ethylbenzene from the catalytic alkylation of benzene in a multibed reactor wherein the lighter fractions of the normal overhead polyethylbenzene recycle stream are removed in a distillation column and discarded in order to increase EB conversion rates and lower xylene by-product production.
Patent CA-2168860-C (CA)
Title: Method and apparatus for r-f ablation
Inventor: MULIER PETER M J
IPC: A61B18/12
Filed: 1994-07-25
Granted: 2000-02-08
Abstract: An ablation cathetere and a method of performing cardiac ablation. The catheter is provided with a hollow, helical electrode, which is screwed into cardiac tissue at a desired ablation site and connected to a source of R-F electrical energy to ablate the tissue adjacent the electrode. Prior to ablation, a conductive fluid may be injected through the hollow needle, both to provide for cooling of the tissue adjacent the needle and to increase the conductivity of the tissue in the area of the electrode.
Patent CA-2171693-C (CA)
Inventor: NICHOLS ANGELO H
IPC: F02D43/04
Filed: 1996-03-12
Granted: 1999-08-31
Abstract: The present invention provides a system for testing an engine designed to be run under the control of an engine control module.  The system modifies the operation of the engine while maintaining the engine control module active so as to allow control of the engine to be transferred between the engine management system and the engine control module.  The present invention allows an operator to alter the operation of the engine by varying the signals to the engine's injectors and ignition systems.  While the engine is operating under user defined injector signals, a simulated exhaust gas signal is provided to the engine control module.  This simulated exhaust gas signal allows the engine to be tested under operating conditions where the exhaust gas generated would cause correction by the engine control module making the test condition sought unsustainable.  The system can be programmed to periodically return all functions to the engine control module allowing the establishment of new operating parameters for the engine. In a preferred embodiment, the engine management system can also take control of the engine's electronic ignition system allowing the user to alter spark timing and ignition dwell time.  In addition to providing integrated injector and ignition control, the engine management system of the present invention allows the user to take engine control from and return engine control to the engine control module without knowing the details of the algorithms used to run the engine control module.
Patent CA-2175906-C (CA)
Title: Transformation de bisnoralcool en bisnoraldehyde
Inventor: HEWITT BRADLEY DEE
IPC: C07J9/00
Filed: 1994-10-27
Granted: 2005-04-05
Abstract: La présente invention concerne un procédé de transformation de bisnoralcool (I) en bisnoraldéhyde (II), lequel constitue un intermédiaire connu dans la synthèse de la progestérone.
Patent CA-2187737-C (CA)
Inventor: CASSIDY EDWARD FRANCIS
IPC: C08J3/02
Filed: 1995-04-21
Granted: 2006-07-18
Abstract: Process for removing polluting material from water or wet solid matter by bringing an isocyanate-containing prepolymer into contact with the materials, allowing the prepolymer to react with the water to form a flexible foam and removing the foam from water or solid matter.
Patent CA-2201737-C (CA)
Title: Heterojunction energy gradient structure
Inventor: DAVIS GARY A
IPC: H01L31/103
Filed: 1995-10-25
Granted: 2000-05-16
Abstract: A smooth and monotonic potential energy gradient was established at a p-type (InGa)As - undoped InP heterojunction to efficiently transfer conduction electrons from the (InGa)As:p layer (14) to the InP:? layer (20). This potential energy gradient was established with a compositionally graded p-type semiconductor alloy layer (16) and an n-type InP built-in field layer (18) interposed at the heterojunction. The compositionally graded semiconductor alloy layer spatially distributes the conduction band discontinuity of the (InGa)As - InP heterojunction and the InP:n built-in field layer eliminates potential energy barries from the conduction band over a wide range of externally-applied biases including no externally applied bias. The smooth and monotonic potential energy gradient thus established promotes efficient transfer of the conduction electrons due to drift from the (InGa)As:p layer to the large bandgap InP collector layer where they contribute to the output current of any number of electronic devices. The utility of this potential energy grading structure was demonstrated in a transferred-electron photocathode device wherein the efficient transfer of photoelectrons from the (InGa)As:p absorber layer to the InP:? electron-transfer layer has been utilized.
Patent CA-2203395-C (CA)
Title: Automatic sensitivity control
Inventor: SELIGMAN PETER
IPC: H03G3/32
Filed: 1995-10-24
Granted: 2004-07-20
Abstract: A gain control arrangement for an auditory prosthesis, such as a hearing aid or cochlear prosthesis, is disclosed. The output of a controlled amplifier 11 is processed so as to derive an average noise floor level. This is compared to a predetermined level, and the gain adjusted slowly up or down in response to the comparison. Hardware and software implementations are disclosed.
Patent CA-2206762-C (CA)
Title: A stent assembly
Inventor: STOCKEL DIETER
IPC: A61F2/06
Filed: 1997-06-03
Granted: 2007-08-21
Abstract: A stent assembly comprises a stent whose configuration can change between a transversely compressed state for delivery into a lumen in a human or animal body, and a relaxed state in which in use the stent contacts the lumen to support it. The stent is positioned in a delivery device and constrained by it in its transversely compressed state. The delivery device comprises a tubular member formed from a shape memory alloy and can be fitted to or within a catheter for delivery of the stent through a lumen.
Patent CA-2211343-C (CA)
Inventor: GEE JACK W II
IPC: F04D29/64
Filed: 1997-07-24
Granted: 2006-10-10
Abstract: A modular ceiling fan assembly and system is disclosed in which the functioning components are standardized, including standardized connections for their assembly, and multiple components are provided with a plurality of alternate parts for assembly into a variety of uniquely differentiating configurations, styles and appearances without substantially increasing the cost to the manufacturer. The motor platform, including the motor, shafts, switch housing and electrical components and wiring, are standardized into a single configuration, and the holes for mounting the fan blades on the lower surface and/or upper surface of the rotor have a standardized size and spacing. A modular motor housing is formed from multiple horizontal sections, preferably two or three, with a standardized height to accommodate the common single motor platform. The various sections of the modular motor housing are selected in order to produce a variety of uniquely different appearances. Alternative modular blade attachments, including blade ring and paddle assemblies, blade ramps and blade irons, with and without blade rings, are configured to be mounted in the standardized mounting holes of the rotor. These components, together with the fan blades, have standardized hole spacing for interchangeable assembly of components into differentiating fan styles. As a result, top mounted fan styles, bottom mounted fan styles, and mid-body fan styles can be assembled from the modular components. Standardized packing cushion materials are also disclosed.
Patent CA-2211356-C (CA)
Inventor: YAU CHIOU
IPC: C09D10/00
Filed: 1996-01-26
Granted: 2002-08-06
Abstract: Generally, the invention relates to an ozone-friendly correction fluid that has improved writeover characteristics. The ozone-friendly correction fluids thus have a key benefit (good writeover characteristic) associated with halogenated hydrocarbon solvent-based correction fluids, but also have the environmental benefits associated with ozone-friendly solvent-based correction fluids. Specifically, the present invention relates to an ozone-friendly correction fluid comprising a non-halogenated hydrocarbon solvent, a polymeric phase and an opacifying phase, wherein the radio of opacifying phase to polymeric phase is from about 2.2 to about 3.8 preferably from about 2.4 to about 3.6 (based on weight).
Patent CA-2211384-C (CA)
Inventor: DIMION GEORGE
IPC: B65G57/18
Filed: 1997-07-24
Granted: 2004-02-03
Abstract: A tier forming and handling device for forming and handling sequential tiers of lumber from a flow of elongate boards translated on a first conveyor in a first flow direction, wherein the boards are aligned along their length generally perpendicularly to the first flow direction, having a mat forming mechanism for collecting, by selectively actuable hook stops, the flow of elongate boards against the hook stops so as to form a mat of lumber having a downstream end adjacent the hook stops and an upstream end whereagainst the flow of elongate boards may continue to collect into abutting adjacent array; a mat separator for separating, along the first conveyor, at a selectively adjustable separation location, a tier of lumber from the downstream end of the mat of lumber; and, a variable speed tier accelerator for conveying and selectively variably accelerating the tier of lumber, once separated along the first conveyor, from the first conveyor to a hoist stacker, wherein the selectively adjustable separation location is selectively adjustable along the first conveyor so as to selectively adjust a first dimension of the tier parallel to the first direction.
Patent CA-2212511-C (CA)
Title: Catheter multilumiere anti-coagulation
Inventor: VAN STONE JOHN C
IPC: A61M1/36
Filed: 1996-01-31
Granted: 2006-11-28
Abstract: Le sang est mis en circulation à travers un cathéter multilumière (10) qui relie la veine d'un patient au dispositif de traitement du sang. Le cathéter et ses lumières (14, 16) délimitent chacun des extrémités distales qui sont situées à l'intérieur de la veine. Cette invention permet de prélever du sang depuis la veine à travers une de ces lumières à un débit d'au moins environ 200 ml/min tout en injectant simultanément du sang dans la veine à travers l'autre lumière à un débit similaire. Les extrémités distales des lumières sont espacées longitudinalement l'une de l'autre de moins de 5mm. On a découvert que ce procédé présentait les avantages suivants: diminution de la formation de caillot associée à une faible recirculation directe du sang, ainsi qu'une augmentation de la durée de vie utile du cathéter. En outre, le cathéter fonctionne correctement dans les deux sens d'écoulement du sang à travers les différentes lumières.
Patent CA-2223300-C (CA)
Title: Expression of lipoproteins
Inventor: ERDILE LORNE F
IPC: C07K14/195
Filed: 1996-06-05
Granted: 2010-07-27
Abstract: Heterologous lipidated proteins formed recombinantly are disclosed and claimed. The expression system can be E. coli. The heterologous lipidated protein has a leader sequence which does not naturally occur with the protein portion of the lipidated protein. The lipidated protein can have the Borrelia OspA leader sequence. The protein portion can be OspC, PspA, UreA, UreB, or a fragment thereof. Methods and compositions for forming and employing the proteins are also disclosed and claimed.
Patent CA-2225769-C (CA)
Title: Lamp reflector for use with gaseous discharge lighting
Inventor: KACE FRANK PAUL
IPC: F21V25/00
Filed: 1997-12-23
Granted: 2007-01-30
Abstract: A reflector is provided which surrounds a light source that has emissions in both the visible and radio frequency ranges. The electrically conductive reflecting coating of the reflector is connected to the system electrical ground so that the radio frequency component is effectively shielded by the reflector. The visible component of the spectrum emitted by the source escapes the reflector cavity after at least one reflection from the reflector surface and forms the required beam pattern.
Patent CA-2234324-C (CA)
Title: Improved meltblowing method and system
Inventor: BOLYARD EDWARD W JR
IPC: D04H1/56
Filed: 1998-04-07
Granted: 2002-01-08
Abstract: Disclosed are meltblowing methods and systems, and more particularly parallel plate meltblowing die assemblies and meltblowing system configurations useable for precisely controlling the dispensing and uniform application of meltblow adhesive filaments onto moving substrates.  More particularly the method includes the steps of dispensing a first fluid from a first orifice to form a first fluid flow at a first velocity, dispensing a second fluid from not more than two second orifices associated with the first orifice to firm separate second fluid flows at a second velocity along substantially opposing flanking sides of the first fluid flow, convergently directing the separate second fluid flows toward the first fluid flow, and drawing the first fluid flow with the separate second fluid flows at asecond velocity greater than the first velocity of the first fluid flow, wherein the drawn first fluid flow is attenuated to form a first fluid filament.  The apparatus carries out the method.
Patent CA-2238223-C (CA)
Inventor: NISHIMURA NARUMICHI
IPC: E05F15/14
Filed: 1998-05-21
Granted: 2001-07-24
Abstract: An apparatus for controlling the closing motion of a vehicular sliding door has a track extending in a longitudinal direction of a motor vehicle body, a sliding door panel movable in opening and closing directions along the track by an actuator unit, an operating unit mounted on an inner lower side of the sliding door panel and operable in response to movement of a handle on the sliding door panel, and a drive signal generator mounted on the track at an open position of the sliding door panel, for generating a drive signal to energize the actuator unit to move the sliding door panel in a closing direction when the operating unit operates.
Patent CA-2239622-C (CA)
Title: Procede de production d'une plaque mere pour degraissage electrolytique, et plaque mere produite selon ledit procede
Inventor: MARTTILA TOM
IPC: B29C70/76
Filed: 1996-12-05
Granted: 2007-01-30
Abstract: L'invention concerne un procédé permettant de produire une plaque mère utilisée pour le dégraissage électrolytique, et une plaque mère comprenant une plaque métallique (1), un élément support de plaque (2) et une bande pour rebord en plastique (6) disposée sur au moins un des bords (3, 4, 5) de la plaque métallique (1). Selon l'invention, afin de former la bande pour rebord (6), on fixe dans la plaque mère (1) un moule (7) comportant une extrudeuse (11) permettant d'extruder le matériau (12) de la bande pour rebord, de façon que l'extrudeuse (11) puisse travailler, par rapport au moule (7), essentiellement toute la longueur de ce dernier (7) et qu'avant la séparation du moule (7) et de la plaque mère (1), le matériau (12) de la bande pour rebord, un copolymère d'acide éthylénique, par exemple, ait pris une forme essentiellement solide. En outre, selon l'invention, au moins un des deux côtés opposés (3, 4) de la plaque mère (1) comporte une bande pour rebord (6).
Patent CA-2241366-C (CA)
Title: Oxygenateur de sang avec echangeur thermique
Inventor: COREY EDMUND R JR
IPC: A61M1/16
Filed: 1997-01-07
Granted: 2002-01-01
Abstract: La présente invention concerne un oxygénateur (10) de sang constitué d'un faisceau de fibres membraneuses et de forme générale cylindrique qui entoure un échangeur thermique de sang. Le liquide caloporteur coule de haut en bas de la partie supérieure de l'échangeur thermique le long des surfaces externes du faisceau de fibres (26). Un collecteur de sang (18) situé dans la partie inférieure de l'échaneur thermique comporte un embout d'admission (30) et possède des parois de forme générale conique (60). Un dispositif de transfert (24) situé dans la partie supérieure de l'échangeur thermique dirige le sang vers la partie supérieure du faisceau de fibres (28) constituant l'oxygénateur. Le dispositif de transfert (24) comporte une paroi (26) de forme générale conique définissant une surface qui diffuse le sang de manière sensiblement uniforme autour de la partie supérieure du faisceau de fibres (28). Le sang ruisselle de haut en bas le long des surfaces externes du faisceau de fibres (28) vers un dispositif diffuseur qui recueille le sang oxygéné. Ledit dispositif diffuseur comporte une chambre annulaire (110) de collecte de sang. Un embout distributeur (32) de sang prolonge ladite chambre annulaire (110) de collecte de sang.
Patent CA-2245548-C (CA)
Inventor: WEINMANN WOLFGANG
IPC: A61K6/891
Filed: 1998-08-21
Granted: 2009-06-09
Abstract: The invention relates to compositions which undergo cationic curing with visible light, comprising: (a) 0.01 to 8 wt.% of at least one diaryliodonium compound, (b) 0.01 to 8 wt.% of at least one .alpha.-dicarbonyl compound, (c) 10.0 to 99.9 wt.% of at least one compound containing epoxide groups and/or oxetane groups, (d) 0 to 85 wt.% of modifiers, such as fillers, dyestuffs, pigments, flow improvers, thixotropic agents, polymeric thickeners, additives having an oxidizing action, stabilizers and retardants, characterized in that they additionally comprise (e) 0.001 to 5 wt.% of at least one aromatic amine. The compositions have a low intrinsic colour, cure with little smell and, after curing, give compositions with very good mechanical properties.
Patent CA-2247404-C (CA)
Inventor: RICHARDSON THOMAS W
IPC: B23K26/08
Filed: 1997-03-04
Granted: 2003-12-09
Abstract: A multi-rate, multi-head positioner (150) receives and processes unpanelized positioning commands to actuate slow stages (56, 58) and multiple fast stages (154) that are mounted on one of the slow stages to simultaneously position multiple tools (156) relative to target locations (162) on multiple associated workpieces (152). Each of the fast stages is coupled to a fast stage signal processor (172) that provides corrected position data to each fast stage positioner to compensate for fast stage nonlinearities and workpiece placement, offset, rotation, and dimensional variations among the multiple workpieces. When cutting blind via holes in etched circuit boards (ECBs), improved throughput and process yield are achieved by making half of the tools ultraviolet ("UV") lasers, which readily cut conductor and dielectric layers, and making the other half of the tools are infrared ("IR") lasers, which readily cut only dielectric layers. The UV lasers are controlled to cut an upper conductor layer and a portion of an underlying dielectric layer, and the IR lasers are controlled to cut the remaining dielectric layer without cutting through or damaging a second underlying conductor layer. The throughput is increased by cutting conductor layers in unprocessed ECBs while concurrently cutting dielectric layers in ECBs that have already had their conductor layer cut. The process yield is increased by performing a workpiece calibration prior to each cutting step to account for any ECB placement, offset, rotation, and dimensional variations.
Patent CA-2248352-C (CA)
Title: Method for the cyclotrimerization of alkynes in aqueous solutions
Inventor: EATON BRUCE
IPC: C07C49/213
Filed: 1997-02-25
Granted: 2008-04-15
Abstract: This invention discloses an improved method for the [2 + 2 + 2]  cyclotrimerization reaction in aqueous solutions using a water soluble transition metal catalyst.