baber/WOPTO huggingface dataset:
Patent CA-2291916-A1 (CA)
Title: Internet differentiated services service for transactional applications
Inventor: DAVIES ELWYN BRIAN
IPC: H04L12/56
Filed: 1999-12-09
Abstract: A method of monitoring telecommunications network traffic comprising the steps of: receiving a packet stream comprising packets each identified as belonging to one of at least three classes; calculating a difference between the numbers of packets received identified as belonging to a first and a second of said classes; and deriving a measure of traffic load on the network responsive to said difference. The invention also relates to a method for admission control based on the above method of monitoring and a method for overcoming admission control avoidance. It also relates to apparatus embodying these methods.
Patent CA-2293004-A1 (CA)
Title: Method for production of nitric acid
Inventor: ECHEGARAY DIEGO FERNANDEZ
IPC: C01B21/40
Filed: 1999-12-21
Abstract: A process is described for producing nitric acid involving oxidizing ammonia gas to form dinitrogen tetroxide gas, reacting the dinitrogen tetroxide with water in an absorption zone to form aqueous nitric acid and nitric oxide gas, removing a nitric acid/nitric oxide stream from the absorption zone and feeding the stream into a nitric acid bleaching zone, removing impurities from the nitric acid in the bleaching zone to form nitric acid product and adding supplemental oxygen gas to one or more of the reaction streams to increase nitric acid production and or strength. The improvement involves injecting the supplemental oxygen into a nitric acid-containing process stream to form a gas bubble/liquid mixture in the stream, the mixture forming a fine dispersion of gas bubbles having diameters of less than about 0.1 mm. According to the invention, increased interfacial surface is created between the gas bubbles and the liquid mixture to facilitate removal of impurities from the liquid phase and shifting of the reaction.
Patent CA-2295665-A1 (CA)
Inventor: TANAKA MAKOTO
IPC: G06F19/00
Filed: 1999-05-11
Abstract: In a game system such as a television game system, a television game machine main unit includes a protocol controller and each game operation device connected to the television game machine unit via a serial port also has a protocol controller. The television game machine main unit when connected to a game operation device which has a unique identifier, combines a communication protocol that transmits and receives data for each character with a communication protocol which transmits or receives data for two or more characters in a row and switches the communication protocol which corresponds to that game operation device based on the identifier thereof to minimize the amount of information required between the television game machine main unit and the game operation device.
Patent CA-2295952-A1 (CA)
Inventor: BOUSTTA MAHFOUD
IPC: C07D319/12
Filed: 1998-06-29
Abstract: The invention concerns monomers with dilactonic cycle and the corresponding polymers, their preparation, and materials containing these polymers. The monomers are of formula (IIIa) in which R is the residue of a acid derived from an ose such as glyconic, gylcuronic or glycaric acid and X represents in particular a methylene or ethylene group optionally substituted by at least an alkyl, allyl, aryl or aralkyl. The corresponding polymers are in the form of degradable non-toxic products and are used for example for packaging (films) or in medicine (implants).
Patent CA-2297000-A1 (CA)
Title: Systeme de lacage de chaussure
Inventor: VEYLUPEK ROBERT J
IPC: A43C11/00
Filed: 1998-05-21
Abstract: Un système de laçage de chaussure comporte un lacet (14), des éléments d'ancrage (12a) et un mécanisme pour fixer de manière réversible les extrémités du lacet à la chaussure (24). Les éléments d'ancrage (12a) comprennent des guides (22) possédant une première partie destinée à être fixée à un oeillet existant de la chaussure (20), et une deuxième partie dans laquelle et par laquelle le lacet peut se déplacer (22a). Le lacet (14) comporte une double brin de matière possédant une surface extérieure à faible frottement. Une partie médiane du lacet est passée dans les éléments d'ancrage (12a) et entre les deux, des côtés opposés d'une languette (L) de la chaussure. Les extrémités du lacet (14) s'étendent depuis les éléments d'ancrage (12a), à proximité du sommet de la languette (L), le long des côtés opposés de la chaussure jusqu'à l'arrière (A) de la chaussure. Chaque lacet (14) est relié à une patte (52a, 52b) possédant une section en matière à boucles et crochets (24), conçue pour venir en prise avec une section coïncidante située à l'arrière de la chaussure (50).
Patent CA-2299406-A1 (CA)
Title: An atm buffer controller and a method thereof
Inventor: HARA MINORI
IPC: H04L47/6275
Filed: 2000-02-23
Abstract: An ATM (asynchronous transfer mode) buffer controller and an ATM buffer control method, which maintains a high level of the quality of service of ATM traffic independent of whether shaping is required or not, is realized. Traffic not requiring shaping is queued in a dedicated output queue of every ATM service category and is output in the order of each priority via the control of fixed priority. In the meantime, traffic requiring shaping is queued in any of n pieces of shapers and shaping processing is applied to the traffic. All shapers can select a suitable one of five round robin control sections by the class of the traffic and hereby, the optimum control of the priority of the output of the corresponding ATM traffic is executed.
Patent CA-2300631-A1 (CA)
Inventor: BOUZIDI JEAN-PIERRE
IPC: H03F3/30
Filed: 2000-03-13
Abstract: The differential stage comprises two routes each connecting an input (Ea, Eb) to an output (Sa, Sb), each route comprising a first device (1a, 1b) for adding a feedback voltage from the other route to the input voltage of the considered route. There is a second device in the form of subtractor (2a, 2b) for providing the feedback voltage to the other route. Capacitors (C2a, C2b) provide a feedback voltage from the other route, so that the feedback voltage is a function only of the AC component of the outp voltage of the first device (1a, 1b). The first device also adds a DC voltage (VCA VCB) to the output voltage of that route. Each route includes a transistor (Ta, Tb) for adding a supplementary DC current to a current delivered by the first device that route at the output. There is also a low-pass filter (3a, 3b) and a stage amplifier (4a, 4b) for controlling the supplement current as a function of the DC component of the current delivered by the first device (1a, 1b). This annuls the DC component of that current. The output terminals (Sa, Sb) are connected by line (L) with resistances for matching and protection (Rsa, Rsb) to terminal (T) represented by a resistance (Rcc) and a capacitance (Cal) in series with an AC resistance (Ral).
Patent CA-2305287-A1 (CA)
Inventor: WASCHE ANDREAS
IPC: A23L11/30
Filed: 1998-10-08
Abstract: L'invention concerne un procédé de traitement et de transformation de graines de lupin renfermant des alcaloïdes, des huiles et des protéines, pour obtenir des produits issus de graines de lupin au moyen d'un fractionnement ciblé. L'invention est caractérisée par la combinaison des étapes suivantes: broyage et/ou déformation des graines de lupin pour obtenir des flocons en forme de disque, introduction indirecte de chaleur dans les flocons en forme de disque qui, dans une large mesure, n'entrent pas en contact direct avec de l'eau, déshuilage des flocons en forme de disque par addition d'un solvant afin d'obtenir des lipides et des flocons à teneur réduite en lipides, retrait de l'amertume des flocons à teneur réduite en lipides au moyen d'un processus de retrait d'amertume aqueux pour obtenir un produit raffiné à teneur réduite en alcaloïde et un extrait aqueux.
Patent CA-2306293-A1 (CA)
Title: An assembly for feeding prepackaged coffee portions to a brewing unit of a coffee machine
Inventor: SCHMED ARTHUR
IPC: A47J31/40
Filed: 2000-04-20
Abstract: An assembly for feeding packed portions of coffee powder to a brewing unit means is provided by the present invention. That assembly has a brewing chamber and a magazine adapted to receive the coffee portion to be brewed. The magazine is rotatable and adapted to receive a plurality of cartridges, each containing a coffee portion. Further, means are provided for individually feeding the coffee portions into the brewing unit.
Patent CA-2306687-A1 (CA)
Title: Dispositif emetteur recepteur optronique a diaphotie reduite
Inventor: NAKAJIMA HISAO
IPC: H04B10/43
Filed: 2000-04-26
Abstract: Dans un dispositif semi-conducteur (1) d'émission réception de signaux optiques modulés ayant un substrat semi-conducteur sur lequel sont intégrés de façon monolithique un émetteur (4) apte à émettre un signal formé par une lumière modulée porté par une première longueur d'onde, un récepteur (6) apte à détecter un signal de réception formé par une lumière modulée porté par une seconde longueur d'onde, on prévoit en outre un capteur (10) d'un signal représentatif de bruits parasites et des moyens de soustraction (11,13,15) pour soustraire du signal de réception, un signal de compensation formé à partir du signal représentatif de bruits parasites capté par le capteur (10) du signal représentatif de bruits parasites. L'invention est également relative à un procédé dans lequel on capte le bruit parasite à proximité du récepteur, et on soustrait du signal reçu par le récepteur un signal formé à partir du signal de bruit parasite capté.
Patent CA-2307003-A1 (CA)
Title: High speed manufacturing system
Inventor: WEBER PATRICK J
IPC: B23Q7/14
Filed: 1999-06-23
Abstract: A high speed manufacturing system for processing articles of manufacture requiring processes to be performed on the articles at a pre-selected processing rate includes a trunk (4) for simultaneously conveying a plurality of the articles of manufacture at the pre-selected processing rate in a first mode of motion from the beginning of the manufacturing system to the end of the system. At least one branch processing station (6, 14, 16) is positioned intermediate the beginning and the end of the trunk wherein the branch processing station during its operation performs at least one process on articles of manufacture conveyed on the branch processing station and where the articles are conveyed in a second mode of motion. At least one transfer device (86) is positioned intermediate the trunk and the branch processing station to continuously extract articles of manufacture from the trunk and transition the movement of the extracted articles of manufacture from the first mode of motion to the second mode of motion for transfer to the branch processing station. The transfer device also extracts each of the processed articles of manufacture from the branch processing station and transitions the movement of the articles from the second mode of motion to the first mode of motion for transfer to the trunk.
Patent CA-2308146-A1 (CA)
Inventor: NEFF THOMAS B
IPC: A61P17/02
Filed: 1998-07-28
Abstract: Polymerized type I and/or III collagen based compositions for medical use as adhesives and sealants and preparation thereof are described. Prior to polymerization, the collagen monomers are prepared recombinantly whereby chemical modifications of the collagen are not needed to form such monomers.  The type I and/or III collagen compositions are useful as medical adhesives for bonding soft tissues or in a sealant film for a variety of medical uses.  In a further aspect of the present invention, the polymerized type I and/or III collagen composition includes agents which induce wound healing or provide for additional beneficial characteristics desired in a tissue adhesive and sealant.
Patent CA-2308217-A1 (CA)
Inventor: GROSS JOSEPH
IPC: A61M/
Filed: 1998-10-20
Abstract: A syringe (10) comprises a barrel (11) containing an internal cylindrical body (12) containing a liquid (14) and communicating with a delivery needle (15).  The needle (15) is covered before use by a removable sheath (16), and after the sheath (16) is removed, the needle (15) is concealed by a displaceable sleeve (20). In use the sleeve (20) is pressed against the skin by applying pressure while holding the barrel (11). The sleeve (20) is thereby retracted into the barrel (11) allowing the needle (15) to penetrate the skin. The movement of the sleeve (20) also activates a gas generator (17) which expels the liquid (14) from the needle (15). When delivery is complete and the syringe (10) is taken from the skin, a coil sprint (22) moves the sleeve (20) back to the starting position again concealing the needle (15). The coil spring (22) is torsionally biased before use and causes a rotational movement of the sleeve (20) relative to the barrel (11) when the sleeve (20) moves into and out of the barrel (11). This rotational movement engages a locking mechanism which prevents further movement of the sleeve (20) and thereby permanently conceals the needle (15).
Patent CA-2309936-A1 (CA)
Title: Liquid chromatography column
Inventor: LEAVESLEY PETER J
IPC: B01D15/08
Filed: 1998-11-12
Abstract: A chromatography cartridge assembly includes a cartridge and first (40) and second end caps (42). A wall of the cartridge (22) defines a chamber (82) for containing chromatography media. The end caps define inlet (62) and outlet passages (66), respectively, for flow of process fluid. The first end cap defines flow distributor passages (100) for distributing process fluid across a cross-sectional area of the chamber, and the second end cap defines flow collector passages (104) for collecting process fluid from across a cross-sectional area of the chamber. A clamp is circumferentially located about the cartridge wall for applying a radial load through the wall to the first end cap to fix the first end cap in a desired position.
Patent CA-2309997-A1 (CA)
Inventor: TUCK MICHAEL WILLIAM MARSHALL
IPC: C07B61/00
Filed: 1998-11-02
Abstract: L'invention concerne un procédé pour la production d'au moins un composé de C¿4? sélectionné parmi 1,4-butanediol, .gamma.-butyrolactone et tétrahydrofuranne, dans lequel une solution d'anhydride maléique dans un ester à haut point d'ébullition est estérifiée avec un alcool C¿1? à C¿4? pour former le di-(alkyl C¿1?-C¿4?) maléate correspondant, lequel est hydrogéné pour former le ou les composés de C¿4?. L'ester à haut point d'ébullition présente un point d'ébullition à la pression atmosphérique supérieur d'environ 30 ·C à celui du di-(alkyl C¿1? à C¿4?) maléate et est choisi parmi des di-(alkyl C¿1? à C¿4?) esters d'acides alkyldicarboxyliques contenant jusqu'à 13 atomes de carbone, des mono- et di-(alkyl C¿10? à C¿18?) esters d'acide maléique, d'acide fumarique, d'acide succinique, et des mélanges de ceux-ci, des (alkyl C¿1? à C¿4?) esters d'acides naphtalènemonocarboxyliques, des tri-(alkyl C¿1? à C¿4?) esters d'acides tricarboxyliques, et des di-(alkyl C¿1? à C¿4?) esters d'acide isophtalique.
Patent CA-2310133-A1 (CA)
Title: Reinforcing aluminous filler and rubber composition comprising such a filler
Inventor: TARDIVAT JEAN-CLAUDE
IPC: C08K3/10
Filed: 1998-11-27
Abstract: The invention concerns an aluminous reinforcing filler capable of being used for reinforcing diene rubber compositions, consisting in an aluminium (oxide-)hydroxide corresponding, including impurities and hydration water, to formula (I) (with a and b as real numbers): Al(OH)¿a?O¿b?; with 0?a?3 and b=(3-a)/2, whereof the specific BET surface ranges between 30 and 400 m?2¿/g, the average particle size (in volume) d¿w? ranges between 20 and 400 nm, and the deagglomeration rate .alpha. measured by the so-called ultrasound-deagglomeration test, at 100 % of the power of an ultrasound probe of 600 watts, is greater than 5.10?-3¿ µm?-1¿/s. The invention also concerns a rubber composition capable of being used for making tyres comprising as reinforcing filler said aluminous filler.
Patent CA-2310745-A1 (CA)
Title: Oxygen scavenging hydrotalcite and compositions containing same
Inventor: HALLOCK JOHN SCOTT
IPC: C08K3/10
Filed: 1998-09-15
Abstract: An oxygen scavenging agent and compositions capable of providing good oxygen absorption capabilities which contain said agent, wherein the agent is a modified anionic hydrotalcite particulate material.
Patent CA-2311302-A1 (CA)
Inventor: CHEN YUNGRWEI
IPC: F16L55/027
Filed: 1998-11-24
Abstract: An energy attenuation device for a conduit conveying liquid under pressure, a system incorporating same, and a method for attenuating energy in a conduit, are provided. The device (20) includes a conduit (23) that is disposed in or is part of the liquid-conveying conduit (T), wherein a chamber (22) having an inlet end (25) and an outlet end (26) is formed in the conduit (23). Two separate tubes (21) are disposed in the chamber (22) of the conduit such that a respective annular space (33) is provided between an inner peripheral surface (32) of the conduit (23) and an outer peripheral surface (30, 31) of each of the tubes (21), wherein at least one of the tubes has at least one hole (34) in the outer peripheral surface (30, 31) thereof to allow communication between the interior of the tube (21) and the chamber (22), and wherein each of the tubes (21) has a free end (27, 28) which is spaced from the free end (28, 27) of the outer tube (21) and/or from a component (38; 25, 26) of the conduit (23).
Patent CA-2315700-A1 (CA)
Title: Multiflow liquid ring pump
Inventor: KULAS KARL-HEINZ
IPC: F04C19/00
Filed: 1998-12-16
Abstract: The invention relates to a multiflow liquid ring pump, comprising a rotor housing that encompasses the pump rotor. A side shield is arranged on both front ends. Each side shield has an inlet and an outlet on the side facing the other side shield, the inlet and outlet being interconnected. An admission hole for the feed line and a pressure hole for the discharge line are provided. Each side shield has at least one additional connection hole. The invention is characterized in that the outer jacket surface of each side shield (3, 4) flushes with and closes the outer jacket surface of the rotor housing (2) and in that the inlet (7, 9), the outlet (8, 10) and the connection hole (11, 12, 13, 14) are connected by channels (15, 16, 30, 31) arranged in the rotor housing (2).
Patent CA-2316415-A1 (CA)
Title: Method and apparatus for drying iron ore pellets
Inventor: CHAPMAN DANIEL R
IPC: F26B21/00
Filed: 2000-08-18
Abstract: In the present method of drying iron ore pellets, e.g., magnetite pellets, moisture-containing iron ore pellets are formed into a bed comprising a multiplicity of the pellets. A current of drying gas is forced upwardly through the bed of pellets to at least partially dry some of the pellets with air jets simultaneously directing air downwardly onto the top surface of the bed. Radiant heat reflectors are placed above the bed to reflect heat back onto the pellets. Air is forced between the reflectors and onto the bed, especially below a firebrick wall located between the end of the updraft drying zone and the downdraft drying zone. Water is applied to the hot pellets to produce steam as well as water vapor which is added to a current of air to produce a stream of hot, humid air that is passed through the bed to improve pellet characteristics and recover waste heat. Air supplied at a selected point is cut off responsive to the presence of a blow hole in the bed so as to improve drying efficiency and improve uniformity of drying.
Patent CA-2316799-A1 (CA)
Title: Transmitter pen location system
Inventor: SAMSON HOU ALFRED
IPC: G06F3/033
Filed: 1999-10-08
Abstract: A transmitter pen location system is provided, in which a pen is adapted to send a repeated output signal to external receivers at two or more receiver locations, wherein the location of the pointing tip of the pen is determined in relation to the writing surface of a whiteboard. In one embodiment an output element, preferably an ultrasonic transducer, transmits a time dependent output signal from a single signal transmitter pen to two or more external receivers at two or more receiver locations. The direction of arrival of the output signal to each of the receiver locations is determined, and the pointing tip of the single transmitter pen is then determined, as the intersection of direction vectors from the pen to the external receivers. In another embodiment, the transducer transmits a time dependent output signal from the transmitter pen to three or more external receivers, wherein the received signal is processed to determine the time of arrival to each of the receivers, and the location of the pointing tip of the pen is determined as the calculated distance between the receivers. In another alternate embodiment having a dual signal transmitter pen, a third receiver located at a receiver location is used to determine the time of arrival of a secondary output signal, to determine the distance between the dual signal transmitter pen and the receiver location, while two or more receivers at the receiver location are used to determine the direction of arrival of the primary time dependent output signal. Alternative embodiments allow the transmission of supplementary information from the transmitter pen to the receivers, using waveshaping of the output signal.
Patent CA-2318201-A1 (CA)
Title: Procedes d'obtention d'elements electrochimiques a l'aide de techniques d'extraction de solvants
Inventor: MITCHELL PORTER H
IPC: H01M50/426
Filed: 1999-03-03
Abstract: L'invention porte sur des procédés d'obtention d'éléments électrochimiques non aqueux à l'aide de techniques d'extraction de solvants permettant d'extraire un solvant support d'une anode, d'une cathode, et/ou d'un mélange formant une matrice solide de polymères. Les électrodes et/ou les éléments électrochimiques ainsi obtenus présentent des propriétés améliorées.
Patent CA-2321947-A1 (CA)
Inventor: ANDERSON WILLIAM HENRY KERR
IPC: A61K47/48
Filed: 1998-02-25
Abstract: Novel humanized monoclonal antibodies, fragments or derivatives thereof which specifically bind carcinoembryonic antigen (CEA) are provided as well as methods for their manufacture. These humanized antibodies are useful in the treatment of cancers which express CEA as well as for diagnostic purposes, e.g., for in vivo imaging of tumors or cancer cells which express CEA.
Patent CA-2322412-A1 (CA)
Title: Non absorbing reticle and method of making same
Inventor: MCCULLOUGH ANDREW W
IPC: G03F1/46
Filed: 2000-10-05
Abstract: A reticle or mask for use in projecting a circuit pattern on a photosensitive resist covered wafer having a transparent substrate (10) with a reflective or dielectric layer (12) thereon. An opaque or blocking layer (14), for example chrome or chromium, is placed over the reflective layer (12). The opaque layer (14) then has a predetermined circuit pattern etched therein. In one embodiment, the opaque layer (14') and the reflective layer (12') are the same size. In another embodiment, the opaque layer (114'') has a size larger than the reflective layer (12''). This permits the opaque layer to be adjacent the substrate which is advantageous when projection optics having a high numerical aperture are used. The reticle of the present invention has particular advantage when high throughput photolithographic tools are used having an illumination source (18) of high energy flux with a wavelength of between 157 nanometers and 365 nanometers. Illumination in this wavelength range has considerable absorption in chrome, a common opaque material used in reticles. The reflective layer or land has a reflectance greater than chrome, and preferably greater than sixty percent. Therefore, the reflective layer greatly reduces reticle warm-up and thermal distortion. This technique is applicable not just to binary mask or reticles, but also to phase masks that may, in some embodiments, have opaque blocking areas thereon.