baber/WOPTO huggingface dataset:
Patent CA-2272803-A1 (CA)
Inventor: MCCARTHY TODD M
IPC: D21F5/02
Filed: 1999-05-28
Abstract: A rotary steam joint and valve assembly for a steam heated roll includes a non-rotatable, axially slidable sleeve journaled on one of the roll shaft ends and operable to selectively withdraw condensate which pools in the lower part of the roll when the roll is stopped or operating at low speed. At higher roll speeds, when condensate is more uniformly distributed circumferentially around the roll interior, the valve is operable to open all radial condensate return paths to the concentrate discharge port in the shaft end.  Steam is supplied radially to the shaft end and the valve is constructed to permit steam flow in either position of the valve.
Patent CA-2273416-A1 (CA)
Inventor: RONDEAU CHRISTINE
IPC: C09B/
Filed: 1999-05-27
Abstract: L'invention concerne une composition de teinture directe pour fibres kératiniques, en particulier pour fibres kératiniques humaines telles que les cheveux comprenant, dans un milieu approprié pour la: teinture exempt d'oxydases ou d'oxydoréductases, au moins un colorant direct cationique de formule donnée, et qui est caractérisée par le fait qu'elle contient en outre au moins un polyol et/ou un éther de polyol particulier. L'invention concerne également les procédés et dispositifs de teinture la mettant en oeuvre.
Patent CA-2274205-A1 (CA)
Inventor: DOWSER MICHAEL T
IPC: H04M9/00
Filed: 1999-06-11
Abstract: The invention provides a key system unit comprising a first interface suitable for connection to a plurality of local terminals and a control unit coupled to the first interface.      The control unit is operative for receiving a user data signal from the first interface and routing the user data signal toward a selected destination. The control unit has a registry for storing status information, the status information including a local segment and at least one remote segment, the local segment providing a representation of the functional status of the key system unit, the remote segment providing a representation of the functional status of a remote key system unit. The key system unit also comprises a second interface coupled to the control unit for allowing the control unit to exchange signaling information with an external entity, the signaling information conveying status information.
Patent CA-2277098-A1 (CA)
Title: Aqueous dispersion of cationic polymer and its production and use
Inventor: SKINNER MALCOLM
IPC: C08J3/03
Filed: 1998-01-19
Abstract: A stable, pourable, liquid composition contains a blend of at least 8 % (usually at least 15 %) water soluble high IV cationic polymer and a water soluble low IV cationic coagulant polymer which preferably comprises polyamine, and water soluble inorganic salt.
Patent CA-2277275-A1 (CA)
Inventor: MARTUCCI GIUSEPPE
IPC: H04M3/54
Filed: 1998-01-06
Abstract: A telephone exchange transmits audible signals to a subscriber line to indicate exchange or network conditions. The audible signals to be transmitted to the subscriber line are selected (means 15) from one or more available audible signal sources (14, 16, 17, 18) according to the contents of a store location (20) for that subscriber line. Further store locations (25) are provided for each subscriber line to enable selection (means 21) of further audible signal sources (22, 23, 24) dependent upon the condition. The subscriber may alter the contents of his or her store location (20, 25) by dialling a special code. By dialling a special code the subscriber may initiate a call attempt using a predetermined series of dialled digits corresponding to the selected signal source (16, 17, 18), in response to the information heard.
Patent CA-2277627-A1 (CA)
Title: Annular fluid manipulation in lined tubular systems
Inventor: TAYLOR JACK C
IPC: E21B17/18
Filed: 1999-07-16
Abstract: A lined tubular system and method provides for the manipulation and control of annular fluids tubular and the liner. This structure allows for profiling of the exterior wall of a liner such that one or more continuous channels are provided along the length of the lined tubular system. The system may also include one or more non-crushable members or tubes between the liner's exterior surface and host tubular's interior surface. Rounded, granular particles in the annulus between liner and host may provide an alternative path for fluid flow. The particles may be uniformly or randomly distributed in the annulus.
Patent CA-2278036-A1 (CA)
Title: Percussion movement apparatus
Inventor: JANG MYEONG SOO
IPC: B25D9/14
Filed: 1999-07-19
Abstract: In order to maximize percussion force and reduce the number of components and weight by installing a valve between a piston and a cylinder, the invention provides a percussion movement apparatus which comprises a valve installed between the piston and the cylinder, the valve being constructed to open/close a flow path and organically cooperate with the piston by predetermined movements thereof, the valve having substantially cylindrical overall shape whose both end surfaces which is upper and lower end surfaces thereof with different cross sectional areas, and also the valve including a longitudinal piston hole with multistage sills, a plurality of holes extending rectangularly to the piston hole for communicating the piston hole with exterior, and an annular projection with front and rear peripheral surfaces partially formed on a peripheral surface of the valve, the cylinder being mounted the outside of the valve and including a plurality of cylinder holes for reciprocating the piston; and a rear cover mounted on the rear of the valve and the cylinder, the piston, the cylinder and the valve having a plurality of chambers and a valve switching chamber defined by making a difference in diameter along a longitudinal direction for providing predetermined annular chambers between inner and outer peripheral surfaces thereof into which the fluid can be introduced, and the cylinder including a cylinder block formed with a plurality of fluid passages for inflow/discharge of a working oil.
Patent CA-2279901-A1 (CA)
Title: Device for detecting unauthorized article removal
Inventor: DESCHENES CHARLES L
IPC: G09F3/03
Filed: 1998-02-03
Abstract: A device (11) for use in detecting the unauthorized removal of an article of commerce from a store or other business establishment. The device (11) comprises a fastener (13) of the type constructed for use in attaching a tag to the article of commerce. The fastener (13) includes a first end, a second end (17) and a filament (19) interconnecting the first end and the second end (17). The first end is shaped to define a cross-bar (15) which can be inserted through the tag and then through the article of commerce. The second end (17) is sized and shaped to prevent the tag from being pulled off the filament (19). The fastener (13) is made of plastic and includes an activating device (21) disposed therewithin, the activating device being used as part of a theft detection system.
Patent CA-2285140-A1 (CA)
Inventor: PEASE RONALD
IPC: B61L5/00
Filed: 1999-10-05
Abstract: An operator for a railroad implement is provided with a linkage which mechanically isolates an actuator from impact forces transmitted through the linkage.  Isolation provided by the linkage permits the use of a low power actuators which easily lend themselves to complete energization from solar energy sources. The operator is also provided with a safety electric interlock to prevent energization of the actuator during manual operation. A spring assembly tool is incorporated into the operator housing to facilitate installations and removal of compression springs in the operator mechanism.
Patent CA-2290658-A1 (CA)
Title: Printer with discrete sheet load enhancement apparatus and method
Inventor: HILL JEFFREY L
IPC: B41J11/70
Filed: 1998-05-19
Abstract: A single sheet printer (21) is adapted to receive continuous carrier forms for printing by a burster module (16) for separating continuous printable stock (24) into separate bursted sheets which are fed to the printer transport mechanism (12) in lieu of the single sheet storage module.
Patent CA-2291200-A1 (CA)
Inventor: SARBELL JOHN P
IPC: G02B6/38
Filed: 1999-11-29
Abstract: A sleeve and method are provided for protecting a splice of an optical fiber.  The sleeve includes a support member and a plurality of optical fibers with the splice and being adjacent the support member. A heat deformable inner tube encompasses each of the plurality of optical fibers at the splice and a heat deformable outer tube encompasses at least partially the support member, the plurality of optical fibers at the splice, and each of the inner tubes. The method includes the acts of sliding the sleeve over a first free end of a plurality of optical fibers such that one of the inner tubes encompasses each of the fibers and then splicing the first free end of the plurality of optical fibers to a corresponding second free end of the plurality of optical fibers.  Subsequently, the sleeve is slide over the splice of the first and second free ends and heat is applied to the sleeve to further strengthen the splice upon cooling.
Patent CA-2291703-A1 (CA)
Title: Improved distal end for ligating band dispenser
Inventor: TOLKOFF MARC J
IPC: A61B17/12
Filed: 1998-06-01
Abstract: A supporting structure (2) for a ligating band dispensing device adapted to be coupled to a distal end of an endoscope (6), comprises a rigid substantially cylindrical transparent outer support surface (30) adapted to receive a plurality of ligating bands (4) thereon. The support surface includes a distal portion extending from a distal end (14) thereof proximally to a distal most ligating band receiving area. A channel (3) extends axially through the support surface from the distal end to a proximal end thereof. An abutting surface is formed along at least a portion of a circumference of the channel to define a distal most point of penetration of an endoscope received therein. A gripping surface extending around at least a portion of a circumference of the proximal end of the channel is sized so that when an endoscope extends into to proximal end of the channel the gripping surface frictionally couples the support surface to the endoscope.
Patent CA-2294416-A1 (CA)
Title: Chromatographie par retentat et ensembles de detection de proteines ayant des applications biologiques et medicales
Inventor: YIP TAI-TUNG
IPC: G06F19/00
Filed: 1998-06-19
Abstract: L'invention concerne des procédés de chromatographie par rétentat permettant de détecter des analytes dans un échantillon. Ces procédés consistent à adsorber les analytes sur un substrat, dans une pluralité de conditions de sélectivité différentes, et à détecter les analytes retenus sur ce substrat par spectrométrie de désorption. Ces procédés sont utiles en biologie et en médecine, notamment pour des diagnostics cliniques et la découverte de médicaments.
Patent CA-2298108-A1 (CA)
Title: Absorbent article having flaps with gathered portions
Inventor: BAMBER JEFFREY VINCENT
IPC: A61F13/476
Filed: 1996-01-05
Abstract: Absorbent articles such as sanitary napkins, panty liners, adult incontinence devices, and the like which have side flaps are disclosed. The absorbent articles having side flaps are provided with gathered portions that can expand to relieve stresses on the flaps when the flaps are wrapped around the curved side edges of a wearer's undergarment. A  releasable wrapper is also disclosed which covers adhesive fasteners on the garment-facing side of said absorbent article and provides an individual package for the sanitary napkin.
Patent CA-2298496-A1 (CA)
Inventor: KASTEN STEPHEN P
IPC: C02F1/78
Filed: 1999-06-16
Abstract: The supply of water used in dental operations and other applications in a dental office, or other medical facility, wherein non-contaminated water is necessary to avoid transmission of microorganisms, is enriched with oxygen, whether from ambient air or a source of oxygen. The oxygenated water is passed through a silver containing catalyst cartridge (204). The water borne oxygen is attracted to the silver and forms a weak bond sufficient to permit dissociation to oxidize organic matter, including microorganisms. A small amount of silver dissolves in the water and flows downstream through the attendant conduits (68, 69, 82) to and through dental handpieces and dental implements. A portion of the silver will adhere to the walls of the conduits, handpieces, and implements where it is free to react with the oxygen dissolved in the water flowing therepast. To enhance oxidizing of the organic matter, an ozone generator (48) may be employed to introduce ozone into the water upstream of the silver catalyst cartridge (204).
Patent CA-2298934-A1 (CA)
Title: Vectors derived from antibodies for transferring substances into cells
Inventor: COUDERC THERESE
IPC: A61K47/48
Filed: 1998-08-04
Abstract: The present invention provides novel polypeptides which can effectively penetrate into cells thereby transporting a substance of interest into the cells.
Patent CA-2299299-A1 (CA)
Inventor: BECK JAMES JOSEPH
IPC: C12Q1/68
Filed: 1998-07-30
Abstract: Internal Transcribed Spacer (ITS) DNA sequences from the ribosomal RNA gene region are described for different species and strains of wheat fungal pathogens, including Fusarium spp. and Microdochium nivale. Specific primers from within these sequences are identified as being useful for the identification of the fungal isolates using PCR-based techniques.
Patent CA-2300045-A1 (CA)
Title: High speed modulation utilizing the field effect
Inventor: ISAKSSON JAN
IPC: H01S5/062
Filed: 2000-03-03
Abstract: A system and method for achieving high speed modulation of semi-conductor devices, such as VCSELs, utilizing field effect to confine a signal path is described. In semi-conductor devices operating at high data rates the configuration of connector rails and signal paths can become a limiting factor. The present invention provides an arrangement in which the signal return path is confined relative to the energizing signal path by a field effect.
Patent CA-2301180-A1 (CA)
Inventor: XU JIM
IPC: H04W92/04
Filed: 1998-08-03
Abstract: La présente invention concerne un système de radiocommunications affectant des unités mobiles à n'importe quelle pluralité de centraux de commutation radiomobile de manière à égaliser le chargement. Ce système comprend la pluralité de centraux de commutation mobile et un système de station de base incluant une pluralité de contrôleurs de stations de base dont chacun effectue le couplage d'une pluralité de stations de base. Dans un mode de réalisation particulier du système, un commutateur de distribution couple le système de station de base à une pluralité de centraux de commutation mobile et affecte les unités mobiles. Dans un exemple de fonctionnement, après fixation d'une unité mobile, le commutateur de distribution détermine le chargement de chacun desdits centraux. Puis, sur la base du chargement, le commutateur affecte l'unité mobile à l'un des centraux, le central de commutation mobile de desserte. Pendant les appels suivants, le commutateur établit une voie transparente entre un contrôleur de station de base desservant l'appel et le central de commutation mobile de desserte. Ainsi, une fois le centre de commutation mobile déterminé, le fonctionnement devient transparent pour le contrôleur de la station de base de desserte et pour le central de commutation mobile de desserte. Dans un autre mode de réalisation particulier, chacun des contrôleurs de station de base effectue un couplage avec chacun des centraux de commutation mobile via un réseau. Dans ce cas de figure, chacun des contrôleurs de stations de base et chacun des centraux de commutation mobile comprend un équipement supplémentaire réalisant au moins une partie des opérations du commutateur de distribution. Le réseau peut être différent d'une structure de données classique basée sur un système de radiocommunications.
Patent CA-2302772-A1 (CA)
Title: Water-in-oil emulsion fuel
Inventor: NOHARA HIROTSUGU
IPC: F23K5/12
Filed: 1998-09-03
Abstract: The present invention is directed to a water-in-oil--type oil-water emulsion fuel which is obtained by mixing heavy oil and water together with an inorganic component, wherein said inorganic component consists of four kinds of compounds of sodium, magnesium, calcium and chlorine, which is characterized in that once the emulsion is obtained, oil-water separation does not occur and the emulsion state is maintained even during combustion, and a stable combustion state is attained.
Patent CA-2304284-A1 (CA)
Title: Method of making electret articles and filters with increased oily mist resistance
Inventor: JONES MARVIN E
IPC: D04H1/54
Filed: 1998-02-02
Abstract: An electret article can be made by quenching a molten blend containing a polymer and a performance-enhancing additive. The resulting low crystallinity material can be annealed and charged to produce a material for making electret filters having superior oily mist loading performance properties.
Patent CA-2307836-A1 (CA)
Inventor: KLEINKE ANDREAS
IPC: A01N47/30
Filed: 1998-10-21
Abstract: Préparation solide d'un produit phytosanitaire s'obtenant par fabrication d'une matière en fusion contenant 1-80 % en poids d'une substance active utilisable dans la protection phytosanitaire ou bien d'une association de telles substances actives, 20-99 % en poids d'au moins un liant thermoplastique avec une température de fusion ou de transition vitreuse supérieure à 70 ·C, et 0-20 % en poids d'additifs, la somme de tous ces constituants étant égale à 100 % en poids, suivie d'un pastillage consistant à décomposer en gouttes la matière en fusion lors d'une première étape et à la solidifier par refroidissement lors d'une deuxième étape.
Patent CA-2309402-A1 (CA)
Title: Distributed flow control system and method for gprs networks
Inventor: HO JOSEPH S
IPC: H04L12/56
Filed: 2000-05-24
Abstract: A distributed flow control system and method for GPRS networks to control and regulate data flow between multiple sources and a single destination within a GPRS network. The present system and method ensures the departing traffic from all of the sources conforms to the peak and average rate requirements that have been set forth by the BSS/PCU. A leaky bucket flow control mechanism is used at each respective one of the multiple sources for controlling flow of data from each respective source to the single destination. A maximum bucket size of a leaky bucket and a bucket leak rate are defined for each leaky bucket flow control mechanism. A multiplier (L) is estimated and determined for each respective source based on recent data arrival behaviors of the multiple sources. When a frame of the data is sent from the respective source to the single destination, a number of bytes equal to the size of the transmitted frame times the multiplier L is added to the leaky bucket. An additional frame of data is allowed to be sent from the respective source to the single destination if transmission of the data frame will not result in overflow of the leaky bucket. An additional frame of data is prohibited from being sent from the respective source to the single destination when transmission of the data frame will result in the overflow of the leaky bucket.
Patent CA-2309894-A1 (CA)
Inventor: KIELLAND PETER JOHANN
IPC: A01G27/00
Filed: 2000-05-24
Abstract: Two bags made of impermeable, flexible plastic sheeting are suspended one above the other to form a system for growing and watering plants. The lower bag is open at its top end and filled with plant soil in which plant roots grow. The lower bag also has perforations along its side through which plant foliage grows and an upper fixation means used to suspend the system from a mounting hook. Drainage holes are provided at the lower bag's lower end. The upper bag has fixation means that suspend it above the soil contained in the lower bag. A series of pinholes pierced through the lower end of the upper bag permit water that is rapidly poured into the top of the bag to slowly drip onto the plant soil contained in the lower bag. Means are also disclosed for retaining and recycling excess water back into the system.
Patent CA-2310013-A1 (CA)
Title: Sample retrieval system
Inventor: DILGER JOHN PATRICK
IPC: G01N1/22
Filed: 1998-10-28
Abstract: A method and apparatus for collecting fugitive emissions from valves and other emissions sources is disclosed. The apparatus comprises a capsule enclosing at least a portion of the equipment and an ejector in fluid flow communication with the capsule. The ejector is connected to a compressed air source, which creates a pressure drop in the ejector which draws emissions from the capsule into the ejector. The apparatus may include a sensor chamber housing gas sensors to detect the presence and concentration of any emissions from the equipment being monitored, and may store emissions data, communicate the data to a plant process control system, and use the data to control plant conditions to reduce or eliminate the emissions.
Patent CA-2312818-A1 (CA)
Inventor: ODRU PIERRE
IPC: F16L11/16
Filed: 1998-12-11
Abstract: The invention concerns a method for the continuous production of a flexible tube body from two stapled wires (9, 10) individually bent in bending means (7, 8), three stitches, unsupported by a mandrel, and such that wires (9, 10) remain constantly in contact so as to optimize their resistance to external pressure. Bending means (7, 8) can be arranged with respect to each other without affecting the bending adjustment. The method consists in stapling the two spirals by elastically deforming the turns so that one crosses the other to cause the wires to overlap partially. The invention also concerns an equipment for producing a flexible tube body.
Patent CA-2315996-A1 (CA)
Title: Method and system for controlling the slope of an output response
Inventor: CHENG YIHAO
IPC: H01S3/10
Filed: 2000-08-15
Abstract: This invention relates to invention relates to a method for filtering and a variable slope optical filter for in-line use with an optical amplifier signal. The filter has a wavelength response that is substantially linear in slope within a band of operation wavelengths of the amplifier; the slope of the filter in an operating band of wavelengths is between zero and a only one of a positive or negative number; furthermore the filter has an amplitude response that has an opposite and counter slope as a function of wavelength to that of a gain tilt of the amplifier within the operation band of wavelengths. The filter having means of operating on polarized light such that different wavelengths within a band of wavelengths within the operation band are subject to different levels of attenuation according to their polarization state. A wave plate having a predetermined thickness provides a relative polarization difference between two wavelengths of in incoming beam in a controlled manner. A polarizer receives light from the wave plate and only allows a predetermined of light to pass therethrough unattenuated and variably attenuates or substantially prevents and/or attenuates other predetermined polarizations of light to pass therethrough.