baber/WOPTO huggingface dataset:
Patent CA-2285233-A1 (CA)
Title: Prosthetic heart valve leaflet selection method and apparatus
Inventor: HUYNH VAN LE
IPC: A61M25/01
Filed: 1998-04-02
Abstract: Heart valve leaflet selection methods and apparatuses which subject individual leaflets to loads and measure the resulting deflection to more reliably group leaflets of similar physical characteristics for later assembly in prosthetic heart valves. The deflection testing may be accomplished using a variety of test set ups which are designed to impart a load on the leaflet which simulates the actual loading within a heart valve. The results from a number of deflection tests are used to categorize individual leaflets, which data can be combined with other data regarding the characteristics of the leaflet to better select leaflets for assembly into a multi-leaflet heart valve. In one embodiment, the deflection test is combined with an intrinsic load test, and leaflets having similar deflection and intrinsic load values used in the same heart valve. One apparatus for testing the leaflets includes a frame for securing the arcuate cusp of the leaflet while the straight coapting edge remains free, to simulate the actual leaflet mounting configuration within the heart valve prosthesis. The frame may include a lower portion having a recess for the leaflet and plurality of receptor holes around the peripheral edge of the recess, and an upper portion having a plurality of needles which extend downward through the leaflet and into the receptor holes and secure the edges of the leaflet.
Patent CA-2286190-A1 (CA)
Inventor: SEMPLE GRAEME
IPC: A61P15/00
Filed: 1998-04-13
Abstract: Peptides are provided which have improved duration of GnRH antagonistic properties. These antagonists may be used to regulate fertility and to treat steroid-dependent tumors and for other short-term and long-term treatment indications. These antagonists have a derivative of aminoPhe or its equivalent in the 5- or the 5- and 6- positions. This derivative is modified so as to contain a carbamoyl group or heterocycle, including a urea moiety in its side chain. Particularly effective decapeptides, which continue to exhibit very substantial suppression of LH  secretion at 96 hours following injection, have the formulae: Ac-D-2Nal-D-4Cpa-D-3Pal-Ser-4Aph(L-hydroorotyl)-D-4Aph(acetyl)-Leu-Lys(isopropyl)-Pro-D-Ala-NH2, and Ac-D-2Nal-D-4Cpa-D-3Pal-Ser-4Aph(L-hydroorotyl)-D-4Amf(Q2)-Leu-Lys(isopropyl)-Pro-Xaa10, wherein Q2 is Cbm or MeCbm and Xaa10 is D-Ala-NH2, D-Ala-ol or Ala-ol.
Patent CA-2288105-A1 (CA)
Title: Exhaust gas purification method and exhaust gas purification catalyst
Inventor: TAKAHASHI HIROAKI
IPC: B01D53/86
Filed: 1998-04-22
Abstract: An exhaust gas purification method and an exhaust gas purification catalyst which, even when the exhaust gas is in a oxygen-rich atmosphere, can surely exhibit a high NOx conversion. The method permits NOx in an exhaust gas in an oxygen-rich atmosphere to be converted by reduction. The catalyst comprises a carrier layer comprising mordenite, aluminum sulfate and cerium zirconium sulfate composite oxide supported on the carrier layer, and Pt further supported thereon. In a temperature region where hydrocarbon is not oxidized, it is adsorbed and held by mordenite, and the hydrocarbon released from the mordenite at the time of temperature elevation is cracked by the mordenite, aluminum sulfate, and cerium zirconium sulfate composite oxide, thus reducing NOx in the exhaust gas with the lower hydrocarbon produced by the cracking as a reducing agent.
Patent CA-2288244-A1 (CA)
Inventor: CARREZ FRANCOIS
IPC: G06F11/22
Filed: 1999-11-02
Abstract: Architecture pour le diagnostic de dysfonctionnement dans un réseau de télécommunication (T) ouvert, comportant ~ un moyen d'acquisition d'informations de gestion provenant d'un réseau de gestion des télécommunications (M) associé au réseau de télécommunication (T), et, ~ un système de diagnostic (D) permettant d'élaborer des diagnostics, L'architecture se caractérise en ce qu'elle comporte en outre un moyen d'acquisition d'informations sur des événements extérieurs influents les communications au sein dudit réseau de télécommunication ouvert, et en ce que les diagnostics sont élaborés à partir de données fournies par les deux moyens d'acquisition d'informations.
Patent CA-2292051-A1 (CA)
Inventor: NEWMAN ROGER R
IPC: B27C5/10
Filed: 1999-12-09
Abstract: The present invention provides an apparatus for securely clamping and routing straight or rectangular grooves, slots, and recesses into the sides or edges of a workpiece. The apparatus comprises opposed front and rear jaw-pieces located on opposite sides of a gap for receiving a workpiece; clamping means connected to the jaw-pieces for clamping the front and rear jaw-pieces to the workpiece located in the gap; a platform area means for supporting the router over the workpiece, the platform area being provided on at least one of the front and rear jaw-pieces; and a laterally adjustable guiding means, for guiding the router, and provided on the platform area, the laterally adjustable guiding means comprising at least one guide fence positioned parallel to the gap.
Patent CA-2292998-A1 (CA)
Title: Ice skate runner
Inventor: CHENEVERT FRANCOIS
IPC: A63C1/38
Filed: 1999-12-21
Abstract: An ice skate assembly with a provision for the replacement of ice skate runners. The ice skate assembly includes a moulded runner holder having a pair of side walls, the side walls extending downwards and forming a groove therebetween where a runner is received, a recess and a bore suitable for receiving a fastener. The ice skate runner is fastened to the runner holder by a runner projection suitable to be engaged with the recess on the moulded runner holder and a fastener passing transversely through the runner and through the bore of the moulded runner holder. The fastener is adapted to exert a force on the ice skate runner such that the hooked portion is engaged on the recess and the runner is secured to the runner holder. The force exerted on the ice skate runner comprises a generally longitudinal component, a generally upward component and a generally transversal component.
Patent CA-2294965-A1 (CA)
Title: Beverage dispenser
Inventor: BOURKE BARRY RICHARD
IPC: G07F13/02
Filed: 1998-06-23
Abstract: A dispenser unit for chilled beverages including a housing (11) for receiving a collapsible bladder containing a beverage and an outlet tap (22) for dispensing the beverage. The tap protrudes through an aperture (16) provided on the housing and is locked into a cradle (20) forming a part of the aperture by means of a slidable holding member (21) which releasably holds the tap in the aperture. The slidable element (21) may include resilient locking legs (60, figures 5, 6) which prevent the element being separated from the housing.  The housing may include a removable bladder holder (15). The unit may include refrigeration means.
Patent CA-2296071-A1 (CA)
Title: Production and use of recombinant protein multimers with altered biological activity
Inventor: SYTKOWSKI ARTHUR J
IPC: C07K19/00
Filed: 1998-07-09
Abstract: The invention relates to recombinant fusion proteins, either with or without peptide linkers, with or without variations in noncoding regions of the protein. The fusion proteins have altered structural and functional properties and biological activity. The fusion proteins can be used, for example, as in vivo therapeutics.
Patent CA-2298002-A1 (CA)
Title: Image quality mapper for progressive eyeglasses
Inventor: CHIPMAN RUSSELL
IPC: G01M11/02
Filed: 1998-07-22
Abstract: An instrument and method for optical testing of an eyeglass lens, including progressive addition lenses, to obtain image quality measurements includes an illumination system for presenting a beam of light to a test lens, a test lens positioning system for rotating the test lens so that different areas on the lens are illuminated, a zoom lens for focusing the beam at a constant effective focal length, a detection system for recording and measuring image quality of the test lens, and an alignment boom for conveying the zoom lens and the detection system such that the optical axis remains aligned with the beam exiting the test lens. The instrument is fully automated and capable of obtaining measurements of the power, astigmatism, prism and modulation transfer function at various locations on the surface of the lens.
Patent CA-2299707-A1 (CA)
Title: System and method for automatically detecting malignant cells and cells having malignancy-associated changes
Inventor: PALCIC BRANKO
IPC: G01N1/30
Filed: 1998-08-06
Abstract: A system and method for detecting diagnostic cells and cells having malignancy-associated changes are disclosed. The system includes an automated classifier having a microscope, camera, image digitizer, a computer system for controlling and interfacing these components, a primary classifier for initial cell classification, and a secondary classifier for subsequent cell classification.  The method utilizes the automated classifier to automatically detect diagnostic cells and cells having malignancy-associated changes. The system and method are particularly useful for detecting these cells in cell samples obtained from bronchial specimens such as lung sputum.
Patent CA-2300818-A1 (CA)
Title: Rotary mower conditioner having improved cut crop flow
Inventor: PRUITT MARTIN E
IPC: A01D43/10
Filed: 1999-08-31
Abstract: A mower conditioner includes a rotary style cutter bed and a pair of laterally extending crop conditioning rolls spaced rearwardly from the cutter bed. Crop flow is improved in the machine by a laterally extending conveying roller located between the cutter bed and the nip defined by the conditioning rolls. In particular, the conveying roller serves to lift cut crop up from the cutter bed and convey the crop rearwardly to the nip. This ensures that the cut crop moves in a steady stream from the cutter bed to the conditioning rolls, and thereby reduces the risk of cut crop being thrown forwardly by the cutters. A downwardly open area is preferably defined between the conveying roller and the cutter bed to provide a space through which dirt and debris can drop out of the machine. The conveying roller preferably has a rotational axis that is lower than the rotational axis of the lower conditioning roll and generally vertically aligned with the substantially planar cutting zone defined by the cutter bed.
Patent CA-2303214-A1 (CA)
Title: Lubricity additives for fuel oil compositions
Inventor: CAPROTTI RINALDO
IPC: C10N40/25
Filed: 1998-09-14
Abstract: Products formed from polycarboxylic acids and epoxides form useful lubricity additives.
Patent CA-2304983-A1 (CA)
Inventor: WONG-STAAL FLOSSIE
IPC: A01K67/027
Filed: 1998-09-15
Abstract: L'invention concerne des vecteurs de lentivirus non originaires de primates, des cellules d'encapsidation et des plasmides d'encapsidation basés, par exemple, sur des rétrovirus de félins et d'ongulés. Ces plasmides d'encapsidation sont, en particulier, conçus pour être exprimés dans des cellules humaines (utilisées également en tant que cellules d'encapsidation). Ces vecteurs opèrent la transduction de cellules humaines, in vitro et in vivo, y compris des cellules du système nerveux et hématopoïétique ne se divisant pas et difficiles à cibler. Ces vecteurs permettent d'effectuer un transfert génique général vers ces cellules et sont appropriés à une thérapie génique afin de traiter des états développés par la médiation de ces cellules ne se divisant pas, y compris le cancer et l'infection par VIH.
Patent CA-2305698-A1 (CA)
Inventor: SHAH PURVI
IPC: C12N1/21
Filed: 1998-10-09
Abstract: The invention provides a human progesterone receptor complex p23-like protein (PR23P) and polynucleotides which identify and encode PR23P. The invention also provides expression vectors, host cells, agonists, antibodies and antagonists. The invention also provides methods for treating and preventing disorders associated with expression of PR23P.
Patent CA-2305737-A1 (CA)
Inventor: ANDERSON RAYMOND L
IPC: F16B23/00
Filed: 2000-04-25
Abstract: This invention relates to a means of insuring that screws and other driven fasteners are applied in the most efficient and effective way posible. Through the method of connecting to the screw with the appropriate fixture and insuring the surfaces are in full contact and allowing for there to be an angle between the force being applied and the driver but maintaining a perfect, fit this invention creates this condition, when ever used in a normal designed setting, and at the same time can function as a normal screw driving device when used on current screw heads.  l
Patent CA-2308015-A1 (CA)
Inventor: MANCEVSKI VLADIMIR
IPC: B81C99/00
Filed: 2000-05-11
Abstract: A system and method for manufacturing carbon nanotubes as functional elements of MEMS devices is disclosed. The method of the present invention comprises the steps of preparing a MEMS substrate for synthesis of a carbon nanotube. A nonosize hole or catalyst retaining structure is fabricated on the MEMS substrate in which a nanotube catalyst is deposited. A nanotube is then synthesized within the nanosize hole.
Patent CA-2309106-A1 (CA)
Inventor: HARTMANN OTTO
IPC: B65H20/02
Filed: 1998-10-13
Abstract: A device for cutting a paper web (P) in the transverse direction has a first continuously driven conveyor (1) for moving the paper web through the device and storing the paper web therein (buffer) during cutting in the form of a loop (20), a stationary cutting device (5), a clamping device (4) for temporarily retaining the paper web, and a second conveyor (6) for moving the paper web further after it is stored. The second conveyor (6) comprises a continuously driven transport roller (6a) and several pressure rollers (6b) that can be intermittently pressed by a lifting device (9) onto the transport roller (6a), the paper web (P) being intercalated between the transport roller and the pressure rollers. The clamping device (4) and the lifting device (9) can be driven in step with the cutting device (5), so that the paper web is retained by the clamping device (4) and the pressure rollers (6b) are lifted from the transport roller (6a) while the paper web is cut. The second conveyor (6) is arranged between the clamping device (4) and the cutting device (5). Its transport roller (6a) has a surface layer (8) with the highest possible coefficient of friction with the paper web (P). The lifting device (9) is designed or can be controlled in such a way that the pressure rollers (6b) are lifted from the transport roller (6a) shortly before the paper web is stretched when the loop (20) is undone.
Patent CA-2309668-A1 (CA)
Title: Asymmetric hydrogenation
Inventor: BURK MARK JOSEPH
IPC: C07F9/6568
Filed: 1998-12-16
Abstract: A process for the preparation of an enantiomerically enriched 2-substituted succinic acid derivative of formula (2), comprises asymmetric hydrogenation of a dehydro precursor of formula (7) or (8), or a mixture thereof wherein R1 and R2 are each independently H, a salt-forming cation or an organic group of up to 30 C atoms, and R3 and R4 are each independently H or an organic group of up to 30 C atoms, or are linked to form a ring, provided that R3 and R4 are not both H, in the presence of a transition metal complex of a chiral phosphine ligand having the partial formula (10) wherein n is 0 to 6 and R  represents at least one non-hydrogen organic group of up to 30 C atoms.
Patent CA-2310470-A1 (CA)
Inventor: BURROWES LEE
IPC: B65D35/36
Filed: 1998-11-20
Abstract: An applicator system, for use in delivering a flowable composi-tion: wherein a container ( 10) in which the flowable composition is to be contained: and at least three applicators (114, 106, 72) of different type, each of the applicators having at least one outlet (148, 108, 88) through which the flowable composition is to be applied, with at least a first of the applicators (72) being securable to the container, and with at least a second of the applicators (114, 106) being securable to the first of the applicators; wherein only at least one outlet of a selected one of the at least three applicators is exposed at any one time while applying the flowable composition therethrough.
Patent CA-2312140-A1 (CA)
Title: Charge separation type heterojunction structure and manufacturing method therefor
Inventor: RAMM MATTHIAS
IPC: B01J35/00
Filed: 2000-06-22
Abstract: A charge separation heterojunction structure which uses a fullerene polymer film as a part of its constituent materials and which may be used to produce a solar cellor a light emitting diode superior in durability, physical properties of electrons and economic merits. The heterojunction structure is such a structure in which an electron-donating electrically conductive high-polymer film and an electron-accepting fullerene polymer film are layered between a pair of electrodes at least one of which is light transmitting. In forming the layers, the fullerene polymer film is identified using in particular the Raman and Nexafs methods in combination so that upper layers are formed after identifying the polymer film.
Patent CA-2313835-A1 (CA)
Title: Cementing casing strings in deep water offshore wells
Inventor: REDDY BAIREDDY R
IPC: C09K8/46
Filed: 2000-07-11
Abstract: The present invention provides improved methods of cementing casing strings in deep water offshore formations penetrated by well bores. The methods are basically comprised of the steps of preparing a cement composition comprised of hydraulic cement, water, gas, a mixture of foaming and foam stabilizing surfactants, a cement early strength accelerator and a mildly set retarding cement dispersing agent, placing the cement composition in the annulus between the casing string and the well bore and allowing the cement composition to set into a hard impermeable mass.
Patent CA-2315277-A1 (CA)
Inventor: MANTOVANI ALBERTO
IPC: A61P31/04
Filed: 1998-12-16
Abstract: Compositions pharmaceutiques contenant une pentraxine longue PTX3, en particulier, PTX3 humaine, servant à traiter des maladies infectieuses, inflammatoires ou tumorales; vecteurs d'expression contenant un ADNc codant pour PTX3; cellules hôtes de recombinaison transfectées par ces vecteurs; procédé servant à produire des quantités importantes de PTX3 et consistant à cultiver ces cellules et mise en application desdits vecteurs dans la thérapie génique de tumeurs.
Patent CA-2315750-A1 (CA)
Title: Procede de preparation de pro-insuline humaine
Inventor: KIM JUNG-WOO
IPC: C12P21/02
Filed: 1998-12-24
Abstract: Cette invention concerne un procédé de préparation d'une pro-insuline humaine qui correspond à la formule chimique (I). R représente un résidu d'acide aminé ou un peptide qui peut être dégradé de manière enzymatique ou chimique. X représente une liaison entre un groupe amino d'A-1 dans une chaîne d'insuline A et un groupe carboxyle de B-30 dans une chaîne d'insuline B. X peut être séparé de la chaîne A ou de la chaîne B de manière enzymatique ou chimique, étant entendu qu'une région allant de A-1 à A-21 représente la chaîne d'insuline A et qu'une région allant de B-1 à B-30 représente la chaîne d'insuline B. Cette invention permet de produire facilement et avec une bonne reproductibilité un précurseur d'insuline recombinant humain, ceci grâce à une grande simplification des étapes de dissolution, de sulfonation, de concentration, de dessalage et de purification. Cette invention permet dans un même temps d'accroître le rendement de la réaction de renaturation.
Patent CA-2322449-A1 (CA)
Inventor: CRAWFORD KATHRYN P
IPC: C12N1/21
Filed: 1999-02-16
Abstract: Spinosyn biosynthetic genes, spinosyn producing microorganisms transformed with the biosynthetic genes, methods using the biosynthetic genes to increase production of spinosyn insecticidal macrolides, and methods using the genes or fragments thereof to change the products produced by spinosyn-producing microorganisms.
Patent CA-2325380-A1 (CA)
Title: Convertible catheter having a single proximal lumen
Inventor: MERTENS STEVEN P
IPC: A61F2/958
Filed: 1999-02-16
Abstract: A convertible intravascular catheter assembly having a single proximal lumen while incorporating the benefits of a single operator exchange catheter and an over-the-wire catheter. The catheter includes a first elongate shaft having a lumen therethrough for slidably receiving a guide wire or stylet. The first elongate shaft extends the length of the catheter, while a second elongate shaft is coaxially disposed over a distal portion of the first elongate shaft to form a second lumen therebetween. An inflatable balloon is sealingly connected proximate the distal end of the second elongate shaft.  Means for fluid communication between the first lumen and second lumen are provided and the seal assembly is disposed within the first lumen distal of the means for fluid communication. An intermediate guide wire port is provided distal of the seal assembly and the combination allows the use of a single lumen proximal of the seal assembly.
Patent CA-2325520-A1 (CA)
Title: Top-of-rail lubrication rate control by the hydraulic pulse width modulation method
Inventor: KUMAR SUDHIR
IPC: B61K3/00
Filed: 1999-03-22
Abstract: A lubrication system for a railroad locomotive applies a lubricant with great accuracy in computer-controlled, precise quantities behind the last axle of the locomotive such that the lubricant is consumed by the time the entire train has passed under all track, speed, temperature and train size condition. Hydraulic pulse-width modulation (PWM or %PWM) controls the quantity of lubricant delivered.  Time is divided into a series of windows (33, 34, 35) each consisting of a few seconds. Lubricant delivered from a pressurized tank (8) through long hoses to a solenoid controlled valve (12) is then metered by the duration within this time window (33, 34, 35) for which the computer computes and opens the valve (12). Compensation is provided for train tonnage and lubricant temperature as well as track curvature and train speed.
Patent CA-2328785-A1 (CA)
Title: Lateral trenching for cross coupling suppression in integrated optics chips
Inventor: GAMPP LORRIE L
IPC: G02B6/126
Filed: 2000-12-19
Abstract: An optical waveguide network (11) is formed in a substrate (78) of an electrooptically active material. The optical waveguide network 11 has input and output facets (50, 52) where optical signals may be input to and output from the integrated optics chip (82). At least one lateral trench (84) is formed in the substrate (78). The lateral trench (84) is arranged to prevent light rays incident thereon from inside the substrate (78) from propagating to the output facet (52). The lateral trench (84) may be formed as a slot that extends toward the surface of the substrate (78) where the optical waveguide network (11) is formed, or the trench (84) may be parallel to the plane of the optical waveguides (11). The trench (84) may be formed in a surface (71, 77) that is either parallel or perpendicular to the plane of the optical waveguide network (11).
Patent CA-2329116-A1 (CA)
Title: Block/inhibiting operation in an arc fault detection system
Inventor: WONG KON B
IPC: H02H3/10
Filed: 2000-12-20
Abstract: A system for determining whether arcing is present in an electrical circuit includes a sensor for monitoring a current waveform in the electrical circuit, and an arc fault detection circuit which determines whether an arc fault is present in response to the sensor. The arc fault detection circuit includes a controller which produces a trip signal in response to a determination that an arcing fault is present in the electrical circuit, and an inhibit/blocking function for preventing the production of the trip signal under one or more predetermined conditions.
Patent CA-2330046-A1 (CA)
Inventor: THORNBERG CHRISTOPHER A
IPC: B64C27/57
Filed: 1999-04-13
Abstract: In a rotary wing aircraft, longitudinal groundspeed error and lateral groundspeed error are converted to earth coordinates, and the result scaled and integrated, and retransformed into aircraft coordinates for application to a pitch attitude control system and a roll attitude control system. The invention thus instantly transfers wind trim between the longitudinal and lateral channels, whenever a heading change is undertaken