baber/WOPTO huggingface dataset:
Patent CA-2182607-C (CA)
Title: Cutter for opening sterilant reagent cups
IPC: A61L2/18
Filed: 1995-06-02
Granted: 1999-03-09
Abstract: A door (B) of a countertop decontamination unit (A) is opened to gain access to a well (20) for receiving an anti-microbial agent carrying cup (D). A knife blade assembly (E) includes a central shaft (30) which supports a blade (40). The blade has cutting edges (46) extending in a sloped manner downward from an apex portion (42) of the blade. The blade is divided into two blade sections (44) by the shaft. The cutting edges have beveled peripheral edges which face the front of each blade section. The blades have a curvilinear configuration that defines oppositely facing upper and lower cam surfaces (50, 52). The central shaft has apertures (34a, 34b, 34c) communicating between a shaft interior passage (32) and the outside of the shaft for providing jets of fluid to the inside of the reagent cup for dissolving and flushing the reagent material from the cup. The curved configuration of the blades deflect fluid flow from the apertures into the reagent cup.
Patent CA-2183140-C (CA)
Title: Ofdm timing and frequency recovery system
Inventor: MCGIBNEY GRANT
IPC: H04L27/26
Filed: 1996-08-12
Granted: 2001-11-20
Abstract: A synchronizing apparatus for a differential OFDN receiver that simultaneously adjust the radio frequency and sample clock frequency using a voltage controlled crystal oscillator to generate a common reference frequency. Timing errors  are found by constellation rotation.  Subcarrier signals are weighted by using complex multiplication to find the phase differentials and then the timing errors. The reference oscillator is  adjusted using the timing errors. Slow frequency drift may be compensated using an integral of the timing error. Frequency offset is found using the time required for the timing offset to drift from one value to another.
Patent CA-2183187-C (CA)
Title: Aqueous colored base coating composition and method for forming topcoat
Inventor: KASARI AKIRA
IPC: C08G59/24
Filed: 1996-08-13
Granted: 2001-01-02
Abstract: The present invention provides an aqueous colored base coating composition (A) comprising a hydroxyl- and carboxyl-containing acrylic resin (A-1), a melamine resin (A-2), an alicyclic epoxy-containing compound (A-3), a neutralizing agent (A-4) and a coloring pigment (A-5).              The present invention further provides a method for forming a topcoat which comprises applying the aqueous colored base coating composition (A) to a substrate and applying to the base coat an organic solvent type clear coating composition (B) to be cured by the crosslinking reaction between a carboxyl group and an epoxy group.
Patent CA-2185339-C (CA)
Title: Enhanced expression in a plant plastid
Inventor: MCBRIDE KEVIN E
IPC: A01H1/00
Filed: 1995-03-10
Granted: 2008-06-03
Abstract: Novel compositions and methods useful for genetic engineering of plant cells to provide increased expression in the plastids of a plant or plant cell of a protein which produces a phenotype which is present when the plant or plant cell is grown in the absence of means for selecting transformed cells. Expression of the Bacillus thuringiensis bacterial protoxin in a plant chloroplast is exemplified.
Patent CA-2189721-C (CA)
Inventor: GEISSLER STEVEN J
IPC: H02M3/28
Filed: 1996-11-06
Granted: 1999-06-15
Abstract: An inverter power supply for use with various voltage inputs is provided.  The inverter power supply generally receives 208 VAC single-phase, 208 VAC three-phase, 230 VAC three-phase, 230 VAC single-phase, 460 VAC single-phase, or 460 VAC three-phase power and provides a DC output current for welding, heating or cutting applications. The power inverter circuit includes a first tank circuit and a second tank circuit which are configured in serial or parallel according to a particular voltage input.  Dual contactor switches respond to control signals from an AC sense circuit in order to configure the inverter power supply for the appropriate voltage input.  The dual contactors may be mechanically interlocked and driven off the DC power for the control board.
Patent CA-2195045-C (CA)
Inventor: VAN DER HEYDEN LAMBERTUS GERAR
IPC: B29C73/02
Filed: 1997-01-14
Granted: 2008-04-01
Abstract: A process and device for treating and repairing a hard surface consisting of a polymer film, such as a floor surface, are provided. Said process comprises the steps of: (i) cleaning said surface with an aqueous cleaning product comprising 0.1-20% by weight of a surfactant and 0.1-80% by weight of a solvent; (ii) applying to the cleaned floor surface a liquid repair product, the properties of which (as defined herein), after drying thereof, being similar to those of the polymer film; and (iii) allowing the thus-treated floor to dry for at least 5 minutes. The device is a manually operated floor treating device specially adapted for use in said process.
Patent CA-2197403-C (CA)
Title: Constant velocity universal joint
Inventor: KUDO SATORU
IPC: F16D3/20
Filed: 1997-02-12
Granted: 2002-04-30
Abstract: A constant velocity universal joint comprises a plurality of trunnions formed to have a spherical configuration and expanding toward guide grooves, cylindrical holders for surrounding the trunnions, to which roller members displaceable along said guide grooves are externally fitted, and cutouts formed on surfaces of the trunnions.
Patent CA-2201202-C (CA)
Inventor: BRANIK DAVID P
IPC: F01N3/28
Filed: 1997-03-27
Granted: 2001-03-20
Abstract: An exhaust treatment device for a motor vehicle includes upper and lower shells which are welded together to form inlet and outlet sections and a treatment section which may be occupied by a monolithic catalytic converter element.  Inlet and outlet stubs which conduct exhaust gas into and out of the exhaust treatment device are joined to the device by means of generally hemispherical sockets formed integrally in the upper and lower shells and mating with hollow spherical sections incorporated in the inlet and outlet stubs.
Patent CA-2204934-C (CA)
Title: Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates
Inventor: KRULL MATTHIAS
IPC: C10L1/18
Filed: 1997-05-09
Granted: 2006-09-05
Abstract: The invention relates to terpolymers obtained by copolymerization of ethylene, the vinyl ester of one or more aliphatic monocarboxylic acids containing from 2 to 20 carbon atoms in the molecule and 4-methylpent-1-ene, a process for their preparation and their use as additives for mineral oils and mineral oil distillates.
Patent CA-2205124-C (CA)
Title: A mechanism for enabling secure electronic transactions on the open internet
Inventor: APTE JITENDRA
IPC: G06Q20/02
Filed: 1997-05-12
Granted: 2001-04-17
Abstract: A method is provided for performing a transaction that is initiated over an opencommunication network between a user and a remotely located server. The open communication network may be the Internet, for example. In accordance with one embodiment of the method, a transaction identification number is received from the remotely located server over the open network and subsequently, communication between the user and the remotely located server is discontinued. Communication is established between the user and a transaction server. The transaction server is operatively coupled to the user and the remotely located server over a communication network which is isolated from the open network. The transaction identification number is transmitted to the transaction server over the communication network. After the transaction server confirms the validity of the transaction identification number, in response to a request from the transaction server, a transaction authorization number is transmitted over the communication network to the transaction server to complete the transaction.
Patent CA-2206969-C (CA)
Title: Self diagnostic heat detector
Inventor: RATTMAN WILLIAM J
IPC: G08B29/00
Filed: 1997-06-04
Granted: 2006-08-08
Abstract: The present invention relates to an electronic heat detector having a self diagnostic mode. The heat detector is able to test the operation of a thermistor utilized for the temperature indicator of the heat detector. The thermistor is tested by applying electrical energy to the thermistor at a sufficient level for sufficient time to cause a measurable increase in the temperature of the thermistor. This level of increase of temperature of the thermistor is measured against an acceptable range for proper operation of the heat detector. The present invention also relates to a method for determining whether a heat detector is operating within acceptable limits, the heat detector utilizing a thermistor for temperature indication by the heat detector. The method comprises applying electrical energy to the thermistor at a sufficient level for sufficient time to cause a measurable increase in the temperature of the thermistor, and comparing the increase in temperature of the thermistor against an acceptable range for proper operation of the heat detector.
Patent CA-2216262-C (CA)
Inventor: VILLANUEVA JOSE RAFAEL GARCIA
IPC: A01B49/02
Filed: 1997-10-10
Granted: 2001-08-21
Abstract: A conservation tillage implement including a shredder with a transverse rotor hood structure having one-piece end panels which are welded to each side of the hood and project rearwardly of the hood to receive a toolbar which extends the width of the implement. The center of the toolbar is connected to a pair of parallel upright central panels which are connected to the central rear portion of the hood. A reinforcing member extends from the central rear portion between the central panels around the top of the hood adjacent the hitch structure which connects the implement to a tractor. The end and central panels and reinforced hood structure define a compact, unobtrusive frame which is sturdy enough to pull heavy drawbar loads and resist heavy torque loading. In one embodiment of the invention, the toolbar supports a plurality of transversely adjustable deep tillage tools such as rippers, and disk structure is connected by adjustable bracket structure to the toolbar behind the rippers. Transversely adjustable lift and transport wheels may also connected to the toolbar, along with transversely adjustable down-limit members for limiting disk penetration and supporting the disk structure above the ground when the wheels are lowered to the transport position. A variety of earthworking tools, including those presenting a heavy draft load, can be mounted at different locations on the toolbar.
Patent CA-2226903-C (CA)
Title: Zipper strip and method of positioning the strip transverse longitudinal axis
Inventor: MCMAHON MICHAEL J
IPC: B65B9/20
Filed: 1998-01-14
Granted: 2004-03-30
Abstract: A zipper strip for a reclosable bag or package includes a male interlocking profile and a female interlocking profile. The male interlocking profile includes a male interlocking member and a male web coextruded therewith. In like manner, the female interlocking profile includes a female interlocking member and a female web. The male interlocking member snappingly engages into the female interlocking member to join the profiles to one another. One of the male and female webs is wider than the other in at least one of two directions from the male and female interlocking members, the greater width being represented by at least one flange extending widthwise beyond the other web. The zipper strip is designed to be attached to thermoplastic sheet material by sealing the at least one flange thereto without sealing the male and female webs to each other. Methods for securing she zipper strip to thermoplastic sheet material, and for making packages on a horizontal form-fill-and-seal machine, are also disclosed.
Patent CA-2227474-C (CA)
Inventor: FOCSANEANU MIHAI
IPC: H04L12/56
Filed: 1996-07-10
Granted: 2002-05-21
Abstract: Dans la téléphonie vocale actuelle, la télévision par câble et les réseaux sans fil, le trafic est canalisé à la fois pour l'accès et pour le transport. Cette canalisation représente une perte de ressources utilisées par des services multiples présentant diverses exigences de largeur de bande et de temps de maintient, ou un service génèrant un trafic de nature sporadique. L'invention résout ces problèmes par un accès multiservice flexible et adaptable aux réseaux. Les demandes des clients sont contrôlées par un trafic de vérification sur un accès local lors d'une demande de connexion et/ou pendant que la connexion est établie, et l'accès local est configuré selon les demandes de transmission. L'accès local peut également être configuré en réponse aux informations du réseau.
Patent CA-2232006-C (CA)
Title: Mobile radio systems
Inventor: GOETZ IAN
IPC: H04W92/12
Filed: 1996-12-11
Granted: 2002-03-12
Abstract: A cellular radio system comprises radio base stations (A, B, C), each having an allocated number of radio channels. Each radio base station is connected to the rest of the network (BSC, MSC) by a branched network (5, 7a, 7b, etc.). At the branch point H an intermediate switch is provided for connecting channels in the trunk portion (5) to channels in the branches (7a, 7b, etc.). The capacity of the trunk link (5) is less than the total capacity of the base stations (and of their associated branch links (7a, 7b, 7c)). At times when one or more of the base stations (A, B, C) have surplus capacity, that capacity is disabled so that the capacity of the trunk link (5) is not exceeded. The capacity of each base station (A, B, C) may be varied according to predicted or actual demand, provided that the total (non-disabled) capacity of the base stations (A, B, C) does not exceed that of the trunk link (5).
Patent CA-2232592-C (CA)
Title: Procede de preparation de sulfure manganeux
Inventor: ARVIDSSON JOHAN
IPC: C01G45/00
Filed: 1996-09-20
Granted: 2007-02-20
Abstract: L'invention concerne un procédé de préparation de sulfure manganeux, qui consiste à chauffer du sulfure manganeux particulaire ou aggloméré à une température équivalent au moins à 700 DEG , en présence d'au moins un agent réducteur.
Patent CA-2236716-C (CA)
Inventor: CARDOSO DE MELO GUERRA EDUARDO
IPC: B01J38/00
Filed: 1996-12-27
Granted: 2002-03-12
Abstract: A cyclone leg sealing system is composed of one or more intermediate solids-accumulation chambers (21) delimited by two sealing valves (10 and 12) in series, the function of the valves being to prevent the back-flow of particulate material towards the inside of the separating cyclones in fluid catalytic cracking (FCC) processes, thereby ensuring the maximum efficiency of the separating effected by the cyclone.
Patent CA-2237923-C (CA)
Title: Reducing electromagnetic noise radiated from a printed board
Inventor: YOSHIDA SHIRO
IPC: H05K1/02
Filed: 1998-05-15
Granted: 2001-04-17
Abstract: A printed board has at least two conductor layers including a power supply layer and a ground layer, and a spiral coil inductor disposed in opposite ones of the conductor layers. The spiral coil inductor has a terminal connected to a power supply line of the power supply layer, and another terminal connected to a device power terminal disposed on one of the conductor layers and to be connected to a power supply terminal of a circuit device and a terminal of a decoupling capacitor.  A device ground terminal is disposed on one of the conductor layers and to be connected to a ground terminal of the circuit device and another terminal of the decoupling capacitor, the device ground terminal being connected to a ground line of the ground layer.
Patent CA-2238629-C (CA)
Inventor: LOTT W GERALD
IPC: B05B1/00
Filed: 1996-08-28
Granted: 2002-04-09
Abstract: L'invention concerne une buse de mélange améliorée (10) pour fluides et un procédé de mélange amélioré. Un premier fluide circule dans la buse pour se mélanger avec un second fluide externe à la buse, et y induire un tourbillon, avec un écoulement de caractère turbulent et chaotique. La buse (10) a un corps (20) avec une cavité (26) qui le traverse, depuis une extrémité d'entrée (22) jusqu'à une extrémité de sortie (24). La surface transversale de l'orifice d'entrée (30) de la buse (10) est supérieure à la surface transversale de l'orifice de sortie (40). La section transversale de l'orifice de sortie (40) a une portion sensiblement circulaire (42) et au moins une (mais normalement plus d'une) saillie (50), partant du périmètre de la portion centrale (42). Généralement, les saillies (50) sont plus petites en coupe transversale que la portion centrale (42), elles sont disposées à distance égale suivant le périmètre de la portion centrale (42) et elles ont un rapport longueur sur largeur allant de 1 à 2. La buse (10) de l'invention permet d'améliorer le mélange, de créer un écoulement turbulent et chaotique, et d'induire la création d'un vortex.
Patent CA-2239960-C (CA)
Title: Biological oxidation of sulphide minerals
Inventor: STALLKNECHT HENDRIK
IPC: C22B11/00
Filed: 1998-06-09
Granted: 2003-05-27
Abstract: A process for treating gold bearing sulphide minerals wherein the minerals are subjected to biological oxidation, the product thereof is separated into light and heavy fractions and gold is recovered from the light fraction using a non-biological process.
Patent CA-2250793-C (CA)
Title: Ensemble emballage permettant de contenir, stocker, presenter et manipuler des produits en forme de disque
Inventor: EHRLUND AKE
IPC: G11B33/04
Filed: 1997-03-21
Granted: 2006-10-10
Abstract: On décrit un ensemble emballage permettant de contenir, stocker, afficher et manipuler des produits en forme de disque, tels que des disques compacts et analogues, cet ensemble étant caractérisé en ce qu'il se compose d'un étui ou d'une pochette que l'on obtient par pliage et/ou collage d'un premier flan en carton ou du type carton, ainsi que d'un élément coulissant ou plateau, conçu pour recevoir de façon amovible au moins un produit en forme de disque et que l'on obtient en pliant et/ou collant un second flan en carton ou du type carton, en ce que l'étui présente une ouverture traversante dans laquelle on peut insérer l'élément coulissant porteur du produit, ou de laquelle on peut retirer celui-ci, en ce que cet élément coulissant comporte des moyens d'encastrement du produit, et en ce que l'étui et l'élément coulissant comprennent des moyens qui coopèrent et servent à maximiser l'étendue du retrait de l'élément coulissant hors de l'étui, afin d'enlever le produit de l'espace prévu à cet effet ou de l'y insérer. Selon l'invention, une partie pliée (74, 76) de l'élément coulissant (70), située au niveau du fond de celui-ci, fonctionne à la fois en tant qu'une partie de la poche réceptrice (26) du produit et en tant que cloison (74) permettant le logement de deux produits dans une position où ils sont parallèles et séparés, la partie pliée comportant un volet pliable séparé (76) formant une butée de fond (76', 76") pour les produits respectivement logés de chaque côté de la cloison (74), laquelle butée a pour fonction de limiter l'étendue du retrait de l'élément coulissant hors de l'étui (80').
Patent CA-2253936-C (CA)
Title: Process for the purification of gases containing hydrogen sulphide
Inventor: SOROKIN DIMITRI YURI
IPC: B01D53/52
Filed: 1997-05-12
Granted: 2006-01-31
Abstract: The invention relates to a process for scrubbing a gas containing hydrogen sulphide and/or carbonyl sulphide, in which the spent scrubbing liquid is treated with autotrophic sulphide-oxidising bacteria capable of oxidising at high pH, and elemental sulphur is obtained, the elemental sulphur is separated and the treated scrubbing liquid is recycled to the gas scrubbing step. Before recycling, the scrubbing liquid may further be treated with heterotrophic thiosulphate-oxidising bacteria which produce polythionate which is useful for further enhancing the sulphide-scrubbing capacity of the scrubbing liquid.
Patent CA-2256071-C (CA)
Inventor: ASAI KOHTARO
IPC: H04N19/423
Filed: 1998-12-15
Granted: 2002-10-08
Abstract: The present invention provides a motion compensating apparatus which is capable of enhancing the overall coding efficiency by taking the amount of coded information used to code a motion vector as well as the sum of difference absolute values of estimated differences into consideration in order to determine an optimal vector.  The motion compensating apparatus includes: a motion compensation processing unit for outputting a motion vector between an input image and a reference image, and an estimated image which is extracted from the reference image in accordance with the motion vector; a unit for calculating the sum of difference absolute values, as a distortion amount calculating unit, to obtain a distortion amount between the input image and the estimated image; a vector value coding unit for receiving the motion vector to code the motion vector thus inputted thereto to output a vector coded amount; and an optimal vector determining unit for receiving the motion vector, the distortion amount and the vector coded amount to obtain, for all of a plurality of motion vectors to be evaluated, an evaluation function calculated from the distortion amount and the vector coded amount to output as an optimal vector the motion vector in which the evaluation function exhibits a minimum value.
Patent CA-2257844-C (CA)
Title: Polymeres derives des olefines utiles comme additifs pour lubrifiants et pour mazout, procedes pour preparer lesdits polymeres et additifs, et leur utilisation
Inventor: GINDELBERGER DAVID EDWARD
IPC: C08F10/00
Filed: 1997-06-11
Granted: 2005-11-29
Abstract: Polymères (y compris copolymères) dérivés d'une ou plusieurs oléfines, telles que des oléfines contenant de l'éthylène et des  alpha -oléfines C3-C20 telles que le propylène et le 1-butène, lesdits polymères ayant a) une longueur moyenne de la séquence éthylène, ESL, comprise entre 1,0 et moins de 3,0 environ; b) une moyenne d'au moins 5 ramifications pour 100 atomes de carbone des chaînes polymères contenant le polymère; c) au moins 50 % environ desdites ramifications étant des ramifications méthyle et/ou éthyle; d) au moins 30 % environ desdites chaînes polymères se terminant par un groupe vinyle ou vinylène; e) un poids moléculaire moyen en nombre, Mn, compris entre 300 et 15000 environ quand le polymère est destiné à être utilisé comme dispersant ou modificateur des cristaux de paraffine, et allant jusqu'à 500000 environ quand il est destiné à être utilisé comme modificateur de viscosité; et f) une solubilité substantielle dans l'hydrocarbure et/ou l'huile de base synthétique. Ces polymères sont produits au moyen de systèmes catalyseurs à base de métaux de transition tardive et, de préférence, de flux d'alimentation très dilués peu coûteux provenant d'une raffinerie ou de vapocraqueurs et n'ayant été soumis qu'à un nettoyage limité. L'invention permet de produire des additifs pour mazout et huiles lubrifiantes, notamment des dispersants, des modificateurs des cristaux de paraffine et des améliorateurs d'écoulement. Quand les additifs nécessitent une fonctionnalisation et une dérivatisation de ces polymères, le processus est facilité par les structures oléfines disponibles dans les chaînes polymères.
Patent CA-2265366-C (CA)
Title: Cleaning apparatus
Inventor: WHITAKER W MICHAEL
IPC: B25G1/00
Filed: 1999-03-16
Granted: 2004-05-18
Abstract: A cleaning apparatus (10, 10', 10'') includes a hand shield (14, 16, 16') with an attachment device (64, 68, 68') thereon for selectively attaching the hand shield to a cleaning tool (12, 12') for protecting a hand gripping a grip portion (32) of an elongated handle of the cleaning tool when the cleaning tool is manipulated to clean a surface such as a hot grill.
Patent CA-2271419-C (CA)
Inventor: NANDA SANJIV
IPC: H04Q11/04
Filed: 1999-05-10
Granted: 2003-07-08
Abstract: A system and method of implementing a radio link protocol and dynamic partial echo management for a transaction oriented packet data communication system. A  data backlog is described with a media access control layer controller and transmitting a BEGIN protocol data unit transmitted to a receiver. A media access control layer transaction is initiated in response to the transmitting of the BEGIN frame.