baber/WOPTO huggingface dataset:
Patent CA-2292146-A1 (CA)
Title: Seal and fuel cell with the seal
Inventor: MIZUNO SEIJI
IPC: H01M8/02
Filed: 1999-12-08
Abstract: A seal in an electrochemical fuel cell prevents fluid in a space from leaking. The seal includes a first layer and a second layer having different coefficients of elasticity. The seal is made of rubber. An electrochemical fuel cell includes an electrolyte membrane, a first electrode on one side of the electrolyte membrane and a second electrode on another side of the electrolyte membrane, a first separator and a second separator, and the seal. The first and second separators sandwich the first and second electrodes. The seal is not only provided between the electrolyte membrane and one of the first and second separators for sealing a path of a fuel gas or an oxidative gas, but is also between the first and second separators for sealing a coolant path. Since the softer layer in the seal elastically deforms and absorbs a surface roughness of the electrolyte membrane or the electrode, the sealing ability of the seal is high. The seal can responds to and follows a length of the electrolyte membrane or the separator changed by varying temperature. Furthermore, since the harder layer supports the electrolyte membrane or the electrode, a high stiffness of the fuel cell stack can be obtained.
Patent CA-2292463-A1 (CA)
Title: Digitally-implemented demodulator
Inventor: JELEA FLORIN
IPC: H03D3/00
Filed: 1999-12-17
Abstract: A digitally-implemented demodulator. A frequency-modulated signal is applied to a limiting amplifier such that the signal amplitude is fixed at a constant level. The signal if undersampled and quadrature demodulated. The demodulator generates the cross-product of the baseband complex envelope to recover the original modulating signal. A digital Frequency Shift Keyed signal can be further recovered by applying the recovered signal to a data slicer to square-up the signal, and a matched filter for improved error resistance.
Patent CA-2293283-A1 (CA)
Inventor: ROS RAYMOND EDMUND
IPC: B65C1/02
Filed: 1998-05-14
Abstract: A method for affixing supplements (2) to moving objects (12) such as pages of quires, wherein a stack of supplements (2) is placed in a holder (1).  Supplements (2) are taken from said stack one at a time and adhered to a passing object (12) by means of an adhesive. A film of adhesive (3), which is capable of rebonding, is applied to at least part of one side of each supplement (2) before composing the stack of supplements (2).
Patent CA-2293550-A1 (CA)
Title: Method for separating benzothiophene compounds from a hydrocarbon mixture containing them, and hydrocarbon mixture obtained by said method
Inventor: LAMURE VALERIE
IPC: C10G29/20
Filed: 1998-06-11
Abstract: A method for separating at least a benzothiophene compound from a hydrocarbon mixture is disclosed. The method includes contacting the mixture of a fraction obtained therefrom with a reagent including an acceptor complexing agent pi, to obtain a donor-acceptor complex between the acceptor complexing agent and the benzothiophene compound; and separating the complex from the mixture, or from the fraction, to obtain a fraction depleted or purified in the benzothiophene compound.
Patent CA-2294028-A1 (CA)
Inventor: ELLER KARSTEN
IPC: B01J27/053
Filed: 1998-06-10
Abstract: The invention relates to a method for producing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogene and/or comonomer on a sulfate-containing heterogeneous supported catalyst. A sulfate-containing heterogeneous supported catalyst is used containing at least one metal sulfate, metal hydrogen sulfate, metal oxide sulfate or mixtures thereof.
Patent CA-2294867-A1 (CA)
Title: Dispositif de fixation de tuyau
Inventor: DAVIES JOHN
IPC: F16L37/14
Filed: 1998-07-03
Abstract: L'invention concerne un organe de fixation (20) destiné à fixer un tuyau (10) à un autre organe (40). Cet organe (20) comporte une première partie fourchue (22) munie de deux branches (22a) qui peuvent être disposées adjacentes à une surface de butée (12, 36) sur le tuyau. Ces branches (22a) sont disposées de chaque côté du tuyau (10). La seconde partie (24) part de la première partie fourchue et agit avec l'organe de fixation (18, 36) dans le but d'empêcher que le tuyau (10) ne se sépare de l'autre organe. Selon un mode de réalisation préféré, les première et seconde parties sont toutes deux fourchues. Selon un autre mode réalisation, l'une des parties est fourchue et l'autre est munie de bras allongés présentant des surfaces de blocage orientées dans le sens transversal, et qui agissent avec l'organe de fixation, dans le but de maintenir le tuyau en place. Les branches de la première partie fourchue peuvent être réunies par une boucle délimitant une ouverture et ce, de manière que l'organe de fixation bloque le tuyau au cours du couplage avec l'autre organe et de la séparation d'avec cet organe.
Patent CA-2296581-A1 (CA)
Title: Utilisation de la hyaluronidase dans la production d'un medicament destine au traitement d'une inflammation
Inventor: HAELLGREN ROGER
IPC: A61P43/00
Filed: 1998-05-06
Abstract: L'invention concerne l'utilisation de la hyaluronidase dans la production d'un médicament destiné au traitement d'états inflammatoires associés à une augmentation de la synthèse locale d'hyaluronan chez un mammifère, p.ex. en relation avec une greffe d'organe. Le médicament comprend de la hyaluronidase dans une quantité donnant un dosage quotidien de 1 à 20 000 IU/kg de masse corporelle en cas d'administration locale ou systématique chez un mammifère. Un procédé permettant de traiter des états inflammatoires associés à une augmentation de la synthèse locale de hyaluronan fait appel à un traitement local ou systémique par un médicament contenant de la hyaluronidase.
Patent CA-2297366-A1 (CA)
Inventor: HELD WILLIAM T
IPC: A63B55/00
Filed: 2000-01-27
Abstract: The present invention relates to a golf bag cover device which is mounted over and about a rim surrounding the opening leading into a golf bag to protect the clubs from inclement weather and the like. The cover device comprises three ribs connected to a base mounted about to the rim. The ribs support a canvas or plastic cover.      One of the ribs extends in a generally horizontal orientation beyond the perimeter of the rim. That way, a golfer can reach up and into the open end, causing the one rib to pivot toward a second rib which in turn pivots toward a third rib to provide access to the clubs. This construction enables a golfer to grab a club without having to touch the palm of his hand to the cover, thereby providing a dry and secure grip on the club.
Patent CA-2297671-A1 (CA)
Title: An intravascular stent having tapered strut
Inventor: BURPEE JANET
IPC: A61F2/06
Filed: 2000-02-01
Abstract: In accordance with the present invention, there is provided a stent, preferably a self--expanding Nitinol stent, for insertion into a vessel of a patient. The stent is made from a tubular member a thickness. front and back open ends, and a longitudinal axis extending therebetween. The member has a first smaller diameter for insertion into a vessel, and a second larger diameter for deployment into a vessel. The tubular member has a plurality of adjacent hoops extending between its front and back ends. The hoops are formed of a plurality of longitudinal struts, each having opposing ends and a center therebetween. The ends of the struts are shaped to form a plurality of loops which connect adjacent struts at the ends of the struts. The member further includes a plurality of bridges connecting adjacent hoops to one another. Each of the struts has a width which is greater at its ends than at its center. Preferably, the width continuously tapers from a greater width at the ends to a smaller width at the centers.
Patent CA-2297761-A1 (CA)
Title: Allume-feu a gaz
Inventor: DUNBAR STUART BARRIE
IPC: F23Q13/04
Filed: 1998-07-28
Abstract: La présente invention concerne un allume-feu à poignée (110). Il est constitué d'un tube (120) agencé axialement dans la poignée et pourvu intérieurement d'un gicleur. L'extrémité d'admission (118) du tube se situe axialement au-delà de la première extrémité (114) de la poignée (110). L'extrémité d'admission (118) est pourvue d'une vanne commandant l'alimentation en gaz de l'allume-feu. Le tube (120) comporte également une extrémité de sortie (128) de forme allongée située axialement au-delà de la deuxième extrémité (116) de la poignée (110). L'extrémité de sortie (128), qui comporte sur sa longueur une pluralité d'orifices (130) de sortie de gaz, est fermée en son extrémité extérieure (132).
Patent CA-2298481-A1 (CA)
Title: Bidding for energy supply
Inventor: JOHNSON JACK J
IPC: G06Q10/04
Filed: 1998-02-24
Abstract: An auction service is provided that stimulates competition between energy suppliers (i.e., electric power or natural gas). A bidding moderator (1) receives bids from the competing suppliers of the rate each is willing to charge to particular end users for estimated quantities of electric power or gas supply (separate auctions). Each supplier receives competing bids from the bidding moderator (1) and has the opportunity to adjust its own bids down or up, depending on whether it wants to encourage or discourage additional energy delivery commitments in a particular geographic area or to a particular customer group. Each supplier's bids can also be changed to reflect each supplier's capacity utilization. Appropriate billing arrangements, including transmitting data from end user meters (12) over the public telephone network (13), are also disclosed.
Patent CA-2298877-A1 (CA)
Title: Use of mesophase-stabilized compositions for delivery of cholesterol-reducing sterols and stanols in food products
Inventor: AKASHE AHMAD
IPC: A23L27/60
Filed: 2000-02-17
Abstract: Plant sterols and plant sterol esters have been shown to be cholesterol-reducing agents in human serum. In the present invention, plant sterols, plant stanols, plant sterol esters, and plant stanol esters are incorporated into mouthfeel-enhancing, texture-building and composition-stabilizing compositions which are mesophase-stabilized compositions for use in low-fat, fat-free and triglyceride-free food products. Such compositions may be incorporated into food products resulting in low-fat, fat-free and triglyceride-free food products which may be used to deliver a recommended daily dosage of the cholesterol-reducing compounds to segments of the population which must limit it's cholesterol intake.
Patent CA-2302031-A1 (CA)
Title: Systemes et procedes de remplacement des signaux televises
Inventor: MACRAE DOUGLAS
IPC: H04N5/445
Filed: 1998-08-27
Abstract: La présente invention concerne des procédés et des systèmes permettant de prendre les signaux vidéo et/ou audio devant s'afficher selon le canal sur lequel le téléviseur est accordé (150) et de les remplacer par des signaux vidéo, audio, les graphismes ou le texte de substitution devant désormais s'afficher sur l'écran du téléspectateur (150). Un aspect de l'invention concerne des procédés et des systèmes permettant de remplacer et/ou de modifier les annonces publicitaires que le téléspectateur peut voir ou entendre.
Patent CA-2305408-A1 (CA)
Title: Method of preparation of products which absorb water intermolecularly
Inventor: VALKANAS GEORGE N
IPC: C08F8/00
Filed: 1998-10-23
Abstract: A method of crosslinking polystyrene polymers and co-polymers for the formation of macroplegmatic materials of an Mc 30,000 to 50,000 is described. The materials forming an insoluble gel which is shaped in an extruder to 3 to 5 cm pieces and is subject to sulphonation with dense sulphuric acid, with oleum sulphuric acid with sulphur trioxide and with chlorosulphonic acid, and the introduction of sulphonic groups to a high density and with the introduction of nitric group and with the introduction of carboxylic group with the copolymer styrene-acrylonitrile. The chlorosulfonic group promotes sulphonation and crosslinking with the formation of bridges with the sulfone group which is controlled with a 10-20 % of acetic acid present as regulator and an insoluble volume of gel is formed which following drainage of the solvent and after remaining to ripen for 4-7 hours it is treated with ethanol or propanol to extract the unreacted chlorosulphonic acid then is neutralised with sodium or potassium hydroxide subjected to an extruder for the preparation of 3-5 cm products. Following neutralisation and shrinkage to a 10 % water content and the products produced are deodorised at a temperature of 160 ~C under vacuum and are converted to materials which absorb water inside their molecules up to 300 times their weight; having an inorganic content of 72-75 % they exhibit a high degree of stability in the ground, they do not degrade and can be used indefinitely for water absorption-release so that they operate as fertility promoters to any type of soil leading to an increase of green growth, and to the planting of trees and forests and to advance food production.
Patent CA-2305922-A1 (CA)
Title: Improved electrochemical sensor design
Inventor: MUSHO MATTHEW K
IPC: G01N27/327
Filed: 2000-04-17
Abstract: Disclosed is an improved electrochemical sensor having a base bearing a working and reference electrode which provides a flow path for a fluid test sample. The working electrode has a reaction layer on its surface which contains an enzyme capable of reacting with an analyte to produce electrons which are received by the working electrode. The base is mated with a cover to form a capillary space into which the test fluid is drawn. The improvement involves configuring the working and reference electrodes so that a major portion of the reference electrode is located downstream on the flow path from the working electrode with the exception of a small sub-element of the reference electrode which is in electrical communication with the primary portion of the reference electrode and located upstream of the working electrode. This configuration provides the sensor with the capability of sending a greatly reduced electrical signal to the device's detecting element in the event that the capillary space is incompletely filled with test fluid. This reduced signal can be manipulated to produce an error signal which affirmatively apprises the device's user that such incomplete filling has occurred.
Patent CA-2309833-A1 (CA)
Inventor: THOMAS FRED C III
IPC: G11B31/00
Filed: 1998-10-28
Abstract: A portable data download device that downloads digital data from a digital appliance, such as digital image data from a digital camera, into a data storage medium, without the use of a personal computer. In other words, a data download device connects to and queries a digital appliance, such as a digital camera, and then downloads and stores digital data from the appliance. The data download device automatically queries the digital appliance to determine the device type and data transfer protocol and driver. The data download device can be coupled with a data storage device, such as a disk drive, or can be a separate, stand-alone device.
Patent CA-2310048-A1 (CA)
Inventor: GOLDBURG MARC H
IPC: H04J99/00
Filed: 1998-11-24
Abstract: The invention relates to a method and apparatus for transmitting one or more downlink signals simultaneously over the same conventional channel from a communication station to one or more subscriber units to achieve a desired overall radiation pattern over a desired sector, the communication station including an array of antenna elements (129), determining means for determining weight vectors designed for the transmitting through the array (129), one or more signal processors for weighting the downlink signals in phase and amplitude according to the weight vectors and adding the weighted signals to form a set of weighted downlink antenna signals, each summed and weighted downlink antenna signal having an intended antenna element in the array (129), and a set of associated transmit apparatuses (115) for transmitting the set of weighted downlink antenna signals using the array (129), each associated transmit apparatus (115) including an input for receiving one of the summed and weighted downlink antenna signals (113).
Patent CA-2310104-A1 (CA)
Inventor: SCHILLING DONALD L
IPC: H04B1/707
Filed: 1991-11-14
Abstract: An apparatus for adaptive-power control of a spread-spectrum transmitter of a mobile station operating in a cellular-communications network using spread-spectrum modulation. A base station transmits a generic spread-spectrum signal and an APC information-data signal. A mobile station has an acquisition circuit (101, 102, 103) for acquiring and decoding the generic spread-spectrum signal, a detector (104) for detecting a received power level of the generic spread-spectrum signal, a decoder (105) decoding the APC-data signal as a threshold, a differential amplifier (106) for generating a comparison signal by comparing the received power level to the threshold, a transmitter (112) for transmitting a transmitter spread-spectrum signal, an antenna, and a variable-gain device (111) responsive to the comparison signal indicating an increase or decrease for adjusting a transmitter-power level of the transmitter spread-spectrum signal.
Patent CA-2310484-A1 (CA)
Title: Networked polymer/clay alloy
Inventor: ZHOU ZHIHONG
IPC: B01J20/30
Filed: 2000-05-26
Abstract: A networked polymer/clay alloy is produced from a monomer/clay mixture comprising a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture. The day is chemically integrated with the polymer such that, on exposure to water, the networked polymer/clay alloy swells wide substantially no clay separating from the alloy.
Patent CA-2310811-A1 (CA)
Title: Tunable optical device
Inventor: KERSHAW STEPHEN VINCENT
IPC: G02F1/1337
Filed: 1998-12-11
Abstract: A method of fabricating a tunable optical device, and a device fabricated according to the method, where the tuning means include a liquid crystal material (5) in an enclosed cavity (3) fabricated over an optical element (1), typically a waveguide, and the cavity is created by the removal, through selective etching, of a layer of quaternary indium gallium arsenide phosphide (18) through a slot (8) etched in a layer of indium phosphide (4) formed over the quaternary layer.
Patent CA-2314605-A1 (CA)
Title: Hm2 cdna related polypeptides and methods of use
Inventor: MULTANI DILBAG SINGH
IPC: C07K14/415
Filed: 1999-01-15
Abstract: The invention provides isolated Hm2 nucleic acids, and their encoded proteins.  The present invention provides methods and compositions relating to altering Hm2 concentration and/or composition of plants. The invention further provides expression cassettes, host cells, transgenic plants, and antibody compositions. Also, the invention provides methods of identifying plant transformation by survival of transformed plant cells or tissues on a cyclic tetrapeptide toxin. The invention further provides methods of imparting disease resistance to plants susceptible to fungal pathogens, which utilize cyclic tetrapeptide toxins.
Patent CA-2317240-A1 (CA)
Title: Fishing lure with interchangeable tail
Inventor: PETERSON LYLE M
IPC: A01K85/16
Filed: 2000-08-30
Abstract: A fishing lure includes a forward body portion with a removable and interchangeable tail portion. The tail portion may be interchanged quickly and easily in the field without tools and without incurring damage to the lure. In this manner, an angler may exchange the tail portion as desired for attracting different types of fish, and/or for fishing in different conditions. The forward body portion is preferably formed as a hollow plastic component, for flotation; other materials having similar properties may also be used. The tail portion is preferably formed of a soft, flexible material, such as silicone rubber as used in the manufacture of synthetic fishing baits such as worms and the like.      The back of the forward body portion includes a generally vertical slot therein, with the slot having a circular cross section and a relatively narrow entrance. The forward end of the tail portion has a bulbed cross section extending therefrom, fitting tightly but removably within the slot of the body portion. Different tail portions may be impregnated with different fish attracting scent and/or taste substances as desired, and interchanged as desired to produce the desired fish attracting action. The forward end of the forward body portion includes a laterally symmetrical bill extending therefrom, with the bill including a forwardly directed cupped or concave area on each side of the flat attachment area.      An eye or the like for the attachment of a fishing leader or line is provided in the upper center of the bill.
Patent CA-2321390-A1 (CA)
Inventor: LIU KEXING
IPC: G01J9/00
Filed: 2000-09-28
Abstract: A novel wavelength measurement method wherein an optical pulse is launched into a dispersive medium with known dispersion properties, such as a dispersion compensating fibre or a dispersion compensating Bragg grating. The specific wavelength of the dispersion-induced light beam is obtained by measuring the propagation time delay through the dispersive medium and relating that propagation time to the calibrated dispersive medium.
Patent CA-2322715-A1 (CA)
Inventor: LOU HUI-LING
IPC: H04L1/00
Filed: 2000-10-10
Abstract: A method for providing packet loss recovery in a data packet-based network used for real-time multimedia communications. In accordance with a first illustrative embodiment of the present invention, the information payload associated with a given data packet k is identically copied and appended to data packet k+w (i. e., the information payload is repeated with a delay of w transmitted packets). More generally, the present invention provides a method of coding a sequence of data packets representing a continuous stream of information, each data packet comprising a set of payload information representative of a segment of the stream of information corresponding thereto, the method comprising the steps of coding a first data packet for transmission, wherein the encoded first data packet comprises a first set of payload information representative of a first segment of the stream of information; and coding a second data packet subsequent to the first data packet in the sequence for transmission, wherein the encoded cond data packet comprises a second set of payload information representative of a second segment of the stream of information subsequent to the first segment of the stream of information, and wherein the encoded second data packet further comprises an additional set of payload information, the additional set of payload information also representative of the first segment of the stream of information, but not representative of other segments of the stream of information.
Patent CA-2324327-A1 (CA)
Title: Shock absorbing bicycle with pressurized air supply system
Inventor: YELVERTON FORREST
IPC: B62M25/08
Filed: 2000-01-07
Abstract: A pressurized air supply system for providing pressurized air to an air powered derailleur (69, 71) of a bicycle (10) having a bicycle frame (14). The system comprises an air pumping mechanism (54) attached to the bicycle frame and adapted to supply pressurized air when actuated. Fluidly connected to the pumping mechanism and to the derailleur is a pressure reservoir (70) of the system. The pumping mechanism is attached to the bicycle frame such that the passage of the bicycle over uneven terrain facilitates the actuation of the pumping mechanism and resultant charging of the pressure reservoir with pressurized air.
Patent CA-2325158-A1 (CA)
Title: Core computer with clock down feature
Inventor: JENKINS MICHAEL D
IPC: G06F1/04
Filed: 2000-11-06
Abstract: In this invention a computer system having a core unit and an enclosure for the core unit is disclosed. The core unit has the ability to determine the nature of the enclosure (be it a car, house, etc.) and to adjust its processor to perform the function required by the enclosure.