baber/WOPTO huggingface dataset:
Patent CA-2324377-A1 (CA)
Title: Modified textile and other materials and methods for their preparation
Inventor: SOANE DAVID S
IPC: C08B3/12
Filed: 1999-03-23
Abstract: Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. Multifunctional molecules for use in modifying the surfaces of materials such as textile fibers, yarns and other fabrics made of or, including cotton, wool and nylon, are provided. The multifunctional molecules can include hydrophobic regions and/or hydrophilic regions. The multifunctional molecules also may include binding functional groups that permit either non-covalent or covalent binding to the material being modified, thus permitting the multifunctional molecule to form a non-covalent or covalent coating on the material. The methods and compounds disclosed herein may be used to modify materials to improve properties such as resistance, grease repellency, soil resistance, permanent press properties, and quickness of drying.
Patent CA-2325251-A1 (CA)
Title: Preventing stickiness of high-boiled confections
Inventor: SOLDANI CRISTIANA
IPC: A23P20/10
Filed: 2000-11-06
Abstract: A coated high-boiled confection characterised in that the coating comprises a solid fat having a melting point of from 25°C to 65°C, preferably from 30°C to 40°C and a method of coating a high-boiled confection which comprises applying the coating in melted form to the surface of the high-boiled confection and cooling to solidify the coating.
Patent CA-2325601-A1 (CA)
Title: Novel constructs for controlled expression of recombinant proteins in prokaryotic cells
Inventor: ROBERT ALAIN
IPC: C12P21/00
Filed: 1999-04-14
Abstract: The invention concerns a novel construct for expressing a gene coding for a recombinant protein of interest placed under the control of the Ptrp tryptophan operon promoter in a procaryotic host cell. The invention is characterised in that the construct comprises a nucleic sequence capable of inactivating the gene coding for a TnaA tryptophanase when said nucleic sequence is introduced in said host cell. The invention also concerns vectors containing said construct and host cells transformed by said vectors. The invention further concerns methods for producing said recombinant proteins using said novel constructs.
Patent CA-2325635-A1 (CA)
Title: Efficient pre-alarm buffer management
Inventor: MACCORMACK DAVID ROSS
IPC: H04N5/445
Filed: 1999-04-29
Abstract: A hard disk (100) in a video data storage apparatus (20) includes a first section in which video data is stored and appointed for permanent recording (216), and a second section in which the video data is stored subject to rewriting after a short period of time. If an alarm event occurs (204), some or all of the data in the second section may be secured for permanent storage (216). The process to be employed in securing the data in the second section for permanent storage (216) is adapted to the proportion of the data in the second section which is desired to be secured.
Patent CA-2326455-A1 (CA)
Inventor: RIDLEY JEFFREY A
IPC: B81B7/00
Filed: 1999-03-29
Abstract: On décrit une tranche fixée à une deuxième tranche pour former au moins une cavité et présenter au moins un trou pouvant être comblé par dépôt d'une couche sur sa surface extérieure. Ladite couche peut être déposée dans un environnement très basse pression pour créer le même type d'environnement dans la cavité hermétique. La cavité peut renfermer au moins un dispositif, tel qu'un détecteur thermocouple, un bolomètre, un émetteur ou autre type d'appareil. La paire de tranches présente généralement de nombreuses cavités et peut être fractionnée en puces.
Patent CA-2328575-A1 (CA)
Title: Load reading circuit protected against overloads resulting from unwanted polarity charges
Inventor: DUCOURANT THIERRY
IPC: G11C27/02
Filed: 2000-12-14
Abstract: A circuit for the reading of charges injected at its input (E) comprises a read MOS transistor (M1), the type of which conditions the polarity of the charges that the read circuit is capable of reading without getting blocked, and an integration capacitor (C) mounted between a first electrode of the drain-source pair of the read MOS transistor (M1) and a reference potential (VDR). The input of the circuit is at the second electrode of the drain-source pair of the read MOS transistor (M1). The injected charges must cross the read MOS transistor (M1) to be integrated by the capacitor (C). The read MOS transistor (M1) is controlled by a control voltage that varies in a manner that is substantially inversely proportional to the input voltage (Ve). The circuit has means (A2) to detect the arrival, at the input (E), of charges with a polarity opposite to the polarity of the charges that it is capable of reading and means (M2) for the imposing, on the input voltage, after a detection of this kind, of an equilibrium value (VDRN) equal or close to a basic value (Vb) that it takes between two successive operations of integrating charges with the desired polarity so as to prevent a prolonged blocking of the read MOS transistor (M1) at the arrival of charges with a desired polarity.
Patent CA-2330072-A1 (CA)
Title: A microcontrolled backlit keypad assembly and method for a gaming machine
Inventor: POWELL TRACY
IPC: G07F17/32
Filed: 2001-01-02
Abstract: A keypad assembly and method for use with a gaming machine including a keypad having a plurality of keys to input data, and a plurality of illumination devices operably coupled to a corresponding key for independent illumination thereof. A microcontroller device is coupled to the plurality of illumination devices for illumination thereof in a manner visually communicating information relating to a game accessible by the gaming machine.
Patent CA-2331486-A1 (CA)
Inventor: PARSIAN MOHAMMAD
IPC: H01M10/052
Filed: 1999-05-11
Abstract: Disclosed herein is a battery design for bi-cell polymer matrix batteries. Each bi-cell comprises, sequentially, a first counter electrode (514a), a first separator membrane (512a), a centrally located electrode (510), a second separator membrane (512b), and a second counter electrode (514b). The current collector of each of the counter electrodes is positioned other than medially within the counter electrode. Generally, the current collector of the counter electrode is located within the outer half of the counter electrode. When the current collector is located at the extreme outer edge of the counter electrode, a capping film of polymer matrix material is preferably laminated to the perforated current collector, and, through the perforated current collector, to the counter electrode material itself.
Patent CA-2332060-A1 (CA)
Title: Method for producing fiber reinforced webbing material from recycled vehicle tires
Inventor: ZEID MANGO
IPC: C08J11/06
Filed: 2001-01-23
Abstract: The present application relates to a method for producing a rubberized fibers strip from a vehicle tire, such as tires having several fiber layers embedded in rubber. The interior rim or bead is removed. The tire is the cut into two tire halves. The tread is pulled off the tire. Each fiber layer, as embedded in the rubber is pulled from the remaining fiber layers. The pulled off fiber layer is embedded by rubber. The layer is then fed through a cutter and strips of rubberized fiber is provided.
Patent CA-2332455-A1 (CA)
Title: Use of hyaluronic acid polymers for mucosal delivery of vaccine antigens and adjuvants
Inventor: PAVESIO ALESSANDRA
IPC: A61P37/04
Filed: 1999-05-28
Abstract: Compositions are provided which include hyaluronic acid derivatives in combination with vaccine antigens, and optionally adjuvants, for mucosal delivery. Also provided are methods of making the compositions, as well as methods of immunization using the same.
Patent CA-2333966-A1 (CA)
Title: Media for culturing animal cells and process for producing protein by using the same
Inventor: ATSUMI MASARU
IPC: C12N5/02
Filed: 1999-06-01
Abstract: A culture medium for culture of an animal cell, characterized by containing an enzymatic degradation product of fish meat or a fish meat extract, and a method for producing a desired protein with the use of the culture medium.
Patent CA-2334184-A1 (CA)
Title: Laser diode apparatus provided with an aiming beam and injection method therefor
Inventor: GODIN JACQUES
IPC: A61B18/22
Filed: 2001-02-05
Abstract: A laser apparatus provided with an aiming beam using a method for the injection of both laser light and aiming beam forming light in an optic fibre will be described herein. More specifically, the present disclosure describes a method, an injection module and a laser apparatus designed to inject laser light into the core and aiming beam forming light into the cladding of the optic fibre.
Patent CA-2335124-A1 (CA)
Inventor: WALLACE GREGORY CRAIG
IPC: H03K17/16
Filed: 1999-06-11
Abstract: A method of control of the current and voltage switching trajectories of insulated gate power semiconductor switches, more specifically MOSFETs and insulated gate bipolar transistor devices (IGBTs), is disclosed. MOSFETs and  IGBTs are used in switch mode power supplies because of their easy driving ability and their ability to handle high currents and voltages at high- switching frequencies. However, the switching trajectories for both types of  devices are responsible for both common-mode electromagnetic emissions generated by the drain current waveform and power losses in the commutation cell. These two characteristics represent opposing design objectives for pow er converters. The current invention uses a hybrid voltage/current gate signal source with feedback of the gate charge (or discharge) current to dynamicall y and independently control the drain current and drain voltage of an insulate d semiconductor device. The rate of change of drain current is controlled by t he voltage source traversing the transconductance curve while the rate of chang e of the drain voltage is controlled by dynamic variations in the current sour ce due to feedback.
Patent CA-2335212-A1 (CA)
Inventor: BANIK SOMNATH
IPC: H04M1/72502
Filed: 2001-02-09
Abstract: A method and apparatus to perform a real-time drift correction of a local oscillator in a wireless device such as a cordless telephone, and/or to perform software-based frequency tracking of the local oscillator. With respect to the real-time drift correction, the remote handset periodically wakes from a sleep mode and goes into a normal link verification mode. Once in the link verification mode, the remote handset enters a time division duplexing (TDD) mode and attempts to establish a link with a base unit based on the timing of the TDD data frame. After the remote handset establishes a link with the base unit, the remote handset requests a security word from the base unit. Upon receiving the requested security word, the remote handset determines if the requested security word matches a security word of the remote handset. The remote handset implements a software frequency adjustment of its local oscillator. Once per frame, the remote handset enters a timing recovery state where the current state of the frame is compared with a previous state. When the cumulative timing slip is greater than a designated threshold, a frequency adjustment is made. The remote handset continuously adjusts its local oscillator to achieve frequency alignment within, e.g., 1 part per million (ppm).      Alternatively, frequency alignment may be achieved to a specified value.   Frequency feedback control may be software based to allow frequency tracking between two remote points in a communication system. In this way, the desirability of any frequency correction at particular times may be based on the accuracy of the recovered timing and data, the sensitivity of the mode of the receiving device, etc. For instance, the frequency can be finely adjusted during system acquisition, can be coarsely adjusted during data transfer, and/or can be programmed to essentially ignore or disregard a frequency offset which would otherwise be determined based on erroneously received data and/or timing (e.g., based on frame error information).
Patent CA-2335234-A1 (CA)
Inventor: LANDI MICHAEL K
IPC: A61B5/055
Filed: 1999-06-15
Abstract: L'invention concerne un dispositif de ciblage permettant de définir une direction d'approche d'une cible de sous-surface, par guidage à l'aide d'un équipement d'imagerie tel qu'un tomographe informatique ou une machine d'imagerie par résonance magnétique. Le dispositif de ciblage est positionné par rapport à la cible, de sorte que la direction optimale de l'approche qui évite les structures internes vitales, peut être sélectionnée par référence aux images affichées sur l'équipement d'imagerie. Le dispositif projette un faisceau de lumière visible, tel qu'un faisceau laser, sur une région du patient, indiquant l'entrée et l'angle d'approche de la cible de sous-surface.
Patent CA-2335786-A1 (CA)
Inventor: MORCOM SELMA ELIZABETH
IPC: A23P1/10
Filed: 1999-06-17
Abstract: L'invention concerne des procédés et un appareil permettant de former une nouveauté (telle qu'une glace à bâtonnet) à partir d'un matériau moulable. On prévoit à cet effet des moyens et des procédés au cours desquels le matériau est extrudé dans une empreinte présentant provisoirement une partie inférieure. Le matériau subit un mouvement relatif entraînant le cisaillement de la quantité de matériau contenu dans la buse de remplissage de l'empreinte à partir du matériau restant dans l'empreinte avant de décharger la quantité moulée de l'empreinte au moment où cette dernière ne présente plus de partie inférieure.
Patent CA-2337567-A1 (CA)
Title: Wheelchair
Inventor: KURODA SHIGERU
IPC: A61G7/10
Filed: 2001-02-19
Abstract: A wheelchair easy to move. The burden imposed both on the user of the wheelchair and on a person who helps him is remarkably reduced. The wheelchair comprises a chair body 5 with a seat 1 and armrests 3a, 3b, right and left large wheels 7a, 7b provided on right and left sides of the chair body, right and left front casters 9a, 9b provided in front of the chair body, each of the front casters being adapted to turn in different horizontal directions.      The chair body is provided at the rear thereof with right and left rear casters 21a, 21b, each of the rear casters being adapted to turn in different horizontal directions, the position of each of the rear casters being vertically adjustable. The position of each of the large wheels is adjustable forward and backward.
Patent CA-2341238-A1 (CA)
Title: Capillary column and method of making
Inventor: WANG DONGXIN
IPC: G01N30/02
Filed: 1999-08-20
Abstract: A new and useful structure for forming a capillary tube (10), e.g. for gas chromatography, and a technique for forming the capillary tube (10) is described. The capillary tube (10) comprises a tube structure (12), and a deactivated surface-bonded sol-gel coating (14) on a surface (16) of the tube structure (12) to form a stationary phase coating (14) on that surface (16) of the tube structure (12). According to the present invention the deactivated stationary phase sol-gel coating (14) enables separation of analytes while minimizing adsorption of analytes on the separation column structure (12).
Patent CA-2342180-A1 (CA)
Title: Method and system for burst congestion control in an internet protocol network
Inventor: PATHAK GIRISH
IPC: H04Q11/04
Filed: 1999-08-27
Abstract: A method and system for controlling congestion in an IP network (160) comprises the steps of preallocating, for a predetermined interval of time, a set of burst access parameters to a set of predetermined routes between a set of source node (100a) and destination node (100c) pairs in the IP network (160) and controlling at the burst level.  Specifically, a network controller (120) for a predetermined interval of time, determines a set of routes between each source-destination node pair in the network, preallocates a set of maximum permitted rates to the predetermined set of routes, respectively, and pre-assigns a set of burst access thresholds to a set of service classes, respectively, in the predetermined routes, where the pre-assigned burst access thresholds are less than or equal to the corresponding preallocated maximum permitted rates. Based on the maximum permitted rates and the burst access thresholds, each source node (100a) in the network (160) then controls, at the burst level, the traffic accessing the network and reserves for each admitted burst the burst peak packet rate on a predetermined route, without communicating with other nodes in the network.
Patent CA-2342536-A1 (CA)
Inventor: KONDO HIROKI
IPC: H01H85/147
Filed: 2001-03-30
Abstract: A fuse block 1 includes a fuse box 2 and a high voltage fuse 3. The fuse box 2 has a high voltage mounting part 6. The high voltage mounting part 6 is provided with an opening 6a, a plurality of surrounding walls 7a, 7b, and projections 8. Each of the projections 8 is projected from both the surrounding walls 7a, 7b which are adjacent to each other into an interior of the high voltage mounting part 6. A rated voltage fuse cannot be mounted to the high voltage mounting part 6 because of the presence of the projections 8. The high voltage fuse 3 includes a housing 10 having outer walls 14a, 14b and recesses 13. Each of the recesses 13 is formed by denting both the outer walls 14a, 14b which are adjacent to each other. When the high voltage fuse 3 is mounted to the high voltage mounting part 6, the recesses 13 and the projections 8 will not interfere with each other.
Patent CA-2346660-A1 (CA)
Title: Disque abrasif mince a liant rigide
Inventor: ANDREWS RICHARD M
IPC: B24D5/12
Filed: 1999-07-08
Abstract: L'invention concerne un disque abrasif monolithique, mince et droit constitué de grains abrasifs durs et rigides, et d'un liant en métal fritté comprenant un composant métallique renforçant la rigidité et présentant une rigidité d'ordre supérieur. Les métaux utilisés peuvent être choisis parmi de nombreuses compositions de métaux frittés, les mélanges préférés étant les mélanges de nickel et d'étain. Le métal renforçant la rigidité est un métal capable de conférer une rigidité sensiblement accrue au liant, sans en augmenter sensiblement la dureté. Les métaux préférés sont le molybdène, le rhénium, le tungstène et leurs mélanges. Le liant fritté est généralement obtenu à partir de poudres. Le disque abrasif préféré est un disque abrasif diamant à liant fritté de nickel/étain/molybdène. Un disque de ce type est utilisé pour les opérations d'abrasion de l'industrie électronique, telle que la découpe des tranches de silicium et des palets en carbure d'alumine-titane. Ces nouveaux disques abrasif sont donc bien plus rigides que les disques monolithiques droits classiques, ce qui permet d'obtenir une meilleure précision de découpe et de réduire la désintégration de l'outil, sans augmenter pour autant l'épaisseur du disque et les pertes concomitantes dues aux entailles.
Patent CA-2346842-A1 (CA)
Title: Storage installation for liquified gases
Inventor: HAUG SVEIN M
IPC: F17C3/04
Filed: 1999-10-08
Abstract: An installation for storing liquefied gas in a cavity defined by rock or an outer shell (10) made of concrete, comprising a tank (2) for the gas. The tank (2) which is made of concrete and possibly thermally insulated, is entirely or partly surrounded by a mass (5) filling a void between the tank (2) and the rock or the concrete shell (10). The mass (5) may in itself be sealing, i.e. of low permeability, and may be combined with at least one sealing membrane (13) within the mass (5), or outside or inside the mass. The installation may be located entirely or partly in loose soil (8) which entirely or partly surrounds the shell (10), or be located above ground level.
Patent CA-2349876-A1 (CA)
Title: Systeme de melange pour separation de matieres par flottation
Inventor: HOWK RICHARD A
IPC: B01F7/00
Filed: 1999-10-27
Abstract: L'invention concerne un système de mélange destiné à un réservoir de flottation (10). Ce système comprend une turbine à flux radial (24) et une turbine à flux axial (26) qui sont montées rotatives sur un arbre commun (32), la turbine de flux axial (26) étant située au-dessous de la turbine de flux radial (24).
Patent CA-2350921-A1 (CA)
Title: Processeur parallele de travaux
Inventor: HOLMBERG PER ANDERS
IPC: G06F9/38
Filed: 1999-11-12
Abstract: L'invention concerne, d'une manière générale, un processeur développé pour un réseau de services fournissant divers services à une pluralité d'utilisateurs connectés au réseau. Le processeur (30; 50) comprend une file d'attente (52) de travaux ayant un certain nombre de positions de stockage destinées au stockage de signaux de travaux correspondants aux travaux faisant partie des services sensiblement indépendants demandés par les utilisateurs du réseau, et une pluralité d'unités de traitement parallèle (54), lesquelles traitent indépendamment les signaux de travaux provenant des différentes positions de stockage de la file d'attente de travaux (52), pour exécuter les travaux correspondants en parallèle. A mesure qu'un certain nombre de travaux sont exécutés de manière spéculative, une unité (56) de contrôle des dépendances possibles entre les travaux exécutés est intégrée au processeur. Si une dépendance est détectée pour un travail spéculatif, ce travail est vidé. Afin d'assurer un service rapide et convenable aux utilisateurs du réseau de services, les travaux terminés sont rapidement redémarrés directement à partir de la file d'attente de travaux.
Patent CA-2351030-A1 (CA)
Inventor: SCHEFCZIK HANS PETER
IPC: H04L12/56
Filed: 2001-06-19
Abstract: The invention relates to a method for improved data transmission between a transmitting unit and a receiving unit. In the context of the invention, once the data have been transmitted by the transmitting unit, the transmitted data are checked for those data units which have been sent incorrectly when transmitted via the transmission path. If any such data units are found, then the transmission power of these data units is increased according to the method, and the data which are still outstanding are transmitted at the increased transmission power.
Patent CA-2352153-A1 (CA)
Title: Methods for reducing amine odor in paper
Inventor: PROVERB ROBERT J
IPC: D21H17/37
Filed: 1999-08-16
Abstract: A method of reducing the level of malodorous amines emitted by paper when exposed to an alkaline environment is provided, which comprises making the paper so that it does not contain ammonium groups that are bonded to any polymer contained in the paper by only one chemical bond. Laminates which emit reduced levels of amines and which are comprised of this paper are also provided. In a preferred embodiment, the paper is sized with a sizing emulsion comprised of alkenyl succinic anhydride and a cationic water-soluble polymer having ammonium groups that are attached to the polymer by at least two chemical bonds.
Patent CA-2352736-A1 (CA)
Title: Collection recognizer
Inventor: JAMESON KEVIN W
IPC: G06F17/30
Filed: 2001-07-05
Abstract: Collection recognizers improve the productivity of knowledge workers by enabling automated systems to recognize interesting collections of arbitrary computer files for automated processing. In operation, a collection recognizes detects collections within a search space, selects interesting collections from the group of detected collections, and finally makes information about the selected collections available to software programs for subsequent automated processing. Collection recognizers help to enable the construction of fully automated collection processing systems.
Patent CA-2354014-A1 (CA)
Inventor: LANGOHR PATRICK
IPC: A45D8/24
Filed: 1999-12-17
Abstract: Pince à cheveux (1) destinée à la coiffure caractérisée en ce qu'elle est composée d'au moins trois branches (3, 5, 7) qui sont constituées chacune par une partie de pinçage qualifiée de lame (13, 15, 17) et une extrémité servant de levier de commande (23, 25, 27) permettant d'écarter les lames correspondantes deux-à-deux.