baber/WOPTO huggingface dataset:
Patent CA-2253219-C (CA)
Inventor: SANDERS WILLIAM P
IPC: F01D11/02
Filed: 1997-05-02
Granted: 2002-05-28
Abstract: The invention pertains to a method and apparatus for minimizing the leakage of working fluid through the fluid leakage path (L) of a turbine seal. The invention may be described in general terms as producing from rotary motion of the working fluid a region (58) of lowered pressure PL in the working fluid in a portion of the leakage path adjacent a high pressure P1 side of a sealing ring (50) of the seal. This function may be performed by producing and shedding vortices in the working fluid at one or more points about the circumference of the sealing ring (50). This function may be accomplished by  providing a sealing ring having a tooth portion (54) provided in one or more  tooth segments, portions of one or more trailing edges (56) of the tooth segments extending outward in a common direction.
Patent CA-2253549-C (CA)
Inventor: BLOCK BARRY
IPC: A61N1/30
Filed: 1997-06-17
Granted: 2005-10-25
Abstract: A percutaneous agent delivery or sampling device (10, 88, 98, 104) comprising a sheet (6) having a plurality of microblades (4) for piercing and anchoring to the skin for increasing transdermal flux of an agent and for improving the attachment of the device (10, 88, 98, 104) to the skin. The device comprises a sheet (6) having at least one opening (8) therethrough and a plurality of blades (4) extending downward therefrom, and an anchoring means for anchoring the device (2) to the body surface.
Patent CA-2264417-C (CA)
Inventor: KAWAMORI MASAMI
IPC: B41J2/35
Filed: 1999-03-04
Granted: 2003-07-29
Abstract: A thermal printer has a thermal head in which a Field Effect Transistor (FET) is connected in series to an individual heater element of each of a plurality of heater element groups which are connected in parallel with each other, and to which one capacitor for smoothing power and eliminating noise is connected in parallel relative to the heater element group.      The thermal head performs printing on thermal paper. The thermal printer includes a printing power source circuit, a failure detection power source circuit, a failure detection circuit for detecting the presence and absence of a failure of the heater element by comparing a voltage generated at opposite ends of the detecting resistor with a threshold value. Field Effect Transistor control means is provided for causing discharging of the capacitor by simultaneously turning on all of the Field Effect Transistors under the condition where the printing power source circuit and the failure detection power supply circuit are turned off, before the voltage is supplied from the failure detection power source circuit to the thermal head and the failure detection is performed.
Patent CA-2267436-C (CA)
Inventor: PINTSOV LEON A
IPC: G07B17/00
Filed: 1999-03-29
Granted: 2004-01-20
Abstract: A method for generating evidencing information for a document includes generating an error correction code and generating a digital token employing the error correction code. A method for verifying authentication and integrity information printed on a mail piece includes obtaining an error correction code printed on the document and employing the obtained error correction code to verify the validity of the evidencing information. A method for verifying the evidencing information printed on a mail piece includes obtaining an error correction code printed on a mail piece and determining that the obtained error correction code is inaccurate. The information employed to generate the inaccurate error correction code is obtained and an error correction code is generated from the obtained information. The generated error correction code is employed to verify the validity of the evidencing information. The document may be a mail piece and the evidencing information postage evidencing information with the error correction code being for at least a portion of destination address information.
Patent CA-2279805-C (CA)
Title: Valve opening and closing mechanism in engines
Inventor: CHIYOUJI MASAMI
IPC: F01L1/20
Filed: 1999-08-09
Granted: 2007-04-10
Abstract: When a valve 10 is opened, a locking ball 8 moves upward with respect to a rocker arm 3 and the locking ball is located between the rocker arm3 and a push rod 5. The push rod 5 moves downward integral with the rocker arm 3 in a condition the push rod 5 is locked. When a valve 10 is closed, the locking ball 8 moves downward with respect to the rocker arm 3 and the push rod 5 is placed in unlocked condition. A retaining member 3A in the rocker arm 3 contacts the circlip 9 and the push rod 5 moves upward. By this construction, it becomes possible to eliminate adjustment work of tappet clearances and also unfavorable conditions caused by adjustment work of tappet clearances.
Patent CA-2282666-C (CA)
Inventor: DENIS ALEXIS
IPC: A61P31/04
Filed: 1998-02-26
Granted: 2008-09-02
Abstract: The invention concerns compounds of formula (I) in which A and B form with the atoms to which they are bound a group (a): R1 = NH2, NH-alkyl, NH-alkenyl, NH-alkynyl, (CH2)nAr, NH(CH2)nAr or N=NH(CH2)nAr, Ar = aryl or heteroaryl, optionally substituted; R = H, alkyl optionally substituted, optionally interrupted by one or several heteroatoms, aryl or heteroaryl, optionally substituted, as well as the salts of compounds of formula (I). The compounds of formula (I) have interesting antibiotic properties.
Patent CA-2285193-C (CA)
Inventor: BROOKS ROBERT T
IPC: E21B7/08
Filed: 1998-04-03
Granted: 2004-08-03
Abstract: On décrit un appareil de déploiement (42) servant à faire passer un équipement de forage d'un puits de forage généralement vertical (12 à un puits de forage latéral (14). Ledit appareil de déploiement inclut un tube creux (44) présentant un diamètre intérieur généralement uniforme. Le tube comprend au moins une partie articulée (50) disposée entre une première extrémité et une deuxième extrémité du tube pour permettre une flexion de ladite deuxième extrémité (48) relativement à ladite première extrémité (46). Cette partie articulée sert également à conserver le diamètre intérieur généralement uniforme du tube pendant la flexion angulaire. L'appareil de déploiement inclut en outre un dispositif de verrouillage (64) fixé à la première extrémité du tube pour assujettir de manière libérable cette première extrémité à un emplacement choisi dans le puits de forage vertical adjacent au puits de forage latéral. Le tube de l'appareil de déploiement présente une longueur choisie qui permet à la deuxième extrémité du tube de pénétrer à l'intérieur d'une partie du puits de forage latéral lorsque la première extrémité est assujettie de manière libérable audit emplacement choisi dans le puits de forage vertical.
Patent CA-2293419-C (CA)
Inventor: BOTS HENK J
IPC: H04L12/46
Filed: 1998-06-11
Granted: 2007-03-13
Abstract: Protocols and architecture for secure virtual private networks.  Intraenterprise data communications are supported in a secure manner over the Internet or other public network space with the implementation of secure virtual private networks. Members of a virtual private network group exchange data that may be compressed, encrypted and authenticated, if the exchange is between members of the group.
Patent CA-2297691-C (CA)
Title: Spacer for insulated windows having a lengthened thermal path
Inventor: PETERSON WALLACE H
IPC: E06B3/663
Filed: 2000-02-01
Granted: 2007-01-09
Abstract: An elongate tubular spacer frame bar for insulating windows. The spacer frame bar is formed of metal, and has spaced, staggered sequences of longitudinally oriented elongate slits which increase the length of the thermal conductivity path from the first pane to the second. These slits are formed by displacing the material so that this breaks and shears away along the edges of the slit, thereby forming an effective but narrow air gap. The air gap is sized to prevent the escape particulate desiccant material from within the interior of the spacer.
Patent CA-2300484-C (CA)
Title: Heater door mechanism for infant warming apparatus
Inventor: JONES THOMAS C
IPC: A61G11/00
Filed: 2000-03-13
Granted: 2006-11-07
Abstract: An infant warming apparatus that functions both as an infant incubator as well as an infant warmer. The apparatus has a heater that moves vertically with respect to an infant support during the change in function between an infant incubator and infant warmer. A powered motive system, such as an electric motor, powers the movement of the heater between its upper and its lower positions.  The heater also has a door or doors that are open when the heater is at or nearing the upper position so that the heater can direct energy toward the infant to warm the infant when acting as an infant warmer. The doors close at or shortly after the heater commences movement to the lower position. When closed, the doors isolate the heater to prevent the inadvertent touching of the heater by the infant or attending personnel and prevents the further radiating of infrared energy towards the infant. The mechanism operates automatically without any reminder to the user or action by the user. Preferably the actual opening and closing of the doors takes place within a short distance from the upper position, more preferable within about 6-8 inches form the upper position. A vent is also provided in the heater housing that ventilates the housing when the heater is in its upper position and closes to confine the housing when the heater is in its lower position. A mechanism automatically closes the vent when the heater moves from its upper position to its lower position and opens the vent when the heater moves from its lower position to its upper position. In the preferred embodiment, the vent is biased towards its open position and the doors are biased towards their open positions.
Patent CA-2304730-C (CA)
Title: Polycarbonate-abs moulding materials
Inventor: MICHELS GISBERT
IPC: C08L85/02
Filed: 1998-09-16
Granted: 2009-06-16
Abstract: Thermoplastic moulding compositions containing 1 to 99 parts by weight of an aromatic polycarbonate or polyester carbonate and 1 to 99 parts by weight of at least one graft polymer prepared by solution polymerisation and having a rubber content of from 20 to 50 wt. %, based on the graft polymer, and an average particle diameter of the rubber phase of from 80 to 600 nm and optionally additives, flameproofing agents and/or reinforcing agents.
Patent CA-2307995-C (CA)
Inventor: WRIGHT DAVID A
IPC: H04L7/00
Filed: 2000-05-10
Granted: 2003-02-25
Abstract: In a cellular satellite system such as Astrolink, where same frequency, same polarization (same "color") signals are used in multiple ground cells, there exists the possibility of interference and false reception of uplink Synchronization Bursts (SB) in systems employing TDMA access of the frequency in question. In such systems, a SB transmitted from one terminal may be received in more than one satellite beam. The reception of the signal from a terminal in an undesired beam (330) is erroneous and may adversely impact the time synchronization (360) of the desired terminal. For example, a system may employ Maximal Length (ML) Pseudo-Noise (PN) sequences (410) for its SBs wherein every beam may use the same sequence. To minimize false reception, the ML PN sequences (410) of each SB may be cyclicly shifted a different amount for each beam to generate sequences (410, 420) having low crosscorrelation with each other. By choosing ML PN codes having low crosscorrelation (410, 420) for the different beams, the interference from undesired beams may be minimized (530).
Patent CA-2310740-C (CA)
Inventor: BAKER GARY LEE
IPC: F28G9/00
Filed: 2000-06-06
Granted: 2009-04-21
Abstract: A method for cleaning the internal portions of equipment is described. The method utilizes a foam having a compound capable of reacting with a contaminant. The foam is circulated throughout the internal portions of the equipment, and the equipment is cleaned without being disassembled and without generating excess environmentally unfriendly waste.
Patent CA-2311863-C (CA)
Inventor: NIAURA WILLIAM S
IPC: F16F9/19
Filed: 2000-06-15
Granted: 2009-02-03
Abstract: A vibration damping device is mounted between two spaced portions of a vehicle for absorbing road forces exerted on the vehicle. A cylindrical housing forms an internal piston chamber and is connected at one end to one portion of the vehicle, with an outer end of the rod of a piston which is slidably mounted within the piston chamber, being connected to another portion of the vehicle. A fluid transfer duct is formed between the housing and piston and provides communication between fluid subchambers formed on opposite sides of the piston within the piston chamber. An electrode is attached to either the housing or piston for applying a voltage across the duct to affect the rheological response of an electrorheological (ER) fluid flowing therethrough to provide a controllable mechanism to modify the damping force characteristics of the device. Each end of the piston rod is slidably supported by a slide bushing assembly which is mounted within an end of the housing. The slide bushing assemblies are separated from the ER fluid contained in the fluid chamber by elastomeric seals to reduce bushing wear and deterioration of the ER fluid.
Patent CA-2313257-C (CA)
Title: Accelerated graphics port for multiple memory controller computer system
Inventor: JEDDELOH JOSEPH
IPC: G06F12/1081
Filed: 2000-06-29
Granted: 2012-08-28
Abstract: An architecture for storing, addressing and retrieving graphics data from one of multiple memory controllers. In a first embodiment of the invention, one of the memory controllers 154 having an accelerated graphics port (AGP) includes a set of registers 165, 166 defining a range of addresses handled by the memory controller 154 that are preferably to be used for all AGP transactions. The AGP uses a graphics address remapping table (GART) 156 for mapping memory. The GART 156 includes page table entries 208 having translation information to remap virtual addresses 200 falling within the GART range to their corresponding physical addresses. In a second embodiment of the invention, a plurality of the memory controllers 154, 190 have an AGP, wherein each of the plurality of the memory controllers 154, 190 supplies a set of registers defining a range of addresses that is preferably used for AGP transactions. In a third embodiment of the invention, a plurality of memory controllers implemented on a single chip each contain an AGP and a set of configuration registers identifying a range of addresses that are preferably used far AGP transactions.
Patent CA-2314820-C (CA)
Inventor: COLOMBET PIERRE
IPC: B09B3/00
Filed: 2000-07-05
Granted: 2007-05-08
Abstract: La présente invention concerne un procédé d'inertage de déchets par enrobage desdits déchets dans un liant hydraulique, à base de ciment, le liant hydraulique d'inertage comprenant du ciment sulfoalumineux composé d'au moins 30 % en poids de la phase 3CaO.3Al2O3.CaSO4 (C4A3S). Le liant hydraulique peut soit être essentiellement constitué de ciment sulfoalumineux, soit comprendre également une ou plusieurs zéolites. L'invention concerne aussi le prémix pour la mise en oeuvre dudit procédé, contenant au moins une zéolite et au moins 15 % de ciment sulfoalumineux, composé d'au moins 30 % de phase 3CaO.3Al2O3.CaSO4. Ce prémix trouve une utilisation avantageuse pour l'enrobage des résidus d'incinération d'ordures ménagères.
Patent CA-2314903-C (CA)
Title: Screw extruder with various dispersive mixing elements
Inventor: RAUWENDAAL CHRIS J
IPC: B29C48/605
Filed: 1998-09-18
Granted: 2006-11-21
Abstract: A screw extruder, including a barrel having a bore which defines an inner surface. At least one extruder screw (28) is positioned within the bore, each screw (28) further including a central shaft (34) and at least one screw flight (30). Each screw flight (30) further includes a front pushing face (36) and a rear face (38). The profile (40) of each front pushing face (36) acts with the inner surface of the barrel to form a progressively narrowing passage through which material is forced into multiple regions of high elongational and shear stress which act to break down agglomerates of material and thus dispersively mix the material.
Patent CA-2320220-C (CA)
Title: Isolated dna or gene responsible for parkinson's disease
Inventor: SHIMIZU NOBUYOSHI
IPC: A61K38/00
Filed: 1999-02-09
Granted: 2011-08-02
Abstract: This invention provides an isolated DNA or gene that is responsible for Parkinson's disease and is useful in diagnosing and treating the disease etc. The isolated DNA or gene according to this invention comprises a full-length base sequence according to the sequence ID. No. 1 or 2, or a partial sequence thereof, or a base sequence hybridizable thereto or hybridizable with a complemental strand thereof, and being associated with Parkinson's disease.
Patent CA-2326371-C (CA)
Inventor: KOESSLER JUERGEN
IPC: F24F13/14
Filed: 2000-11-20
Granted: 2006-12-05
Abstract: A roof vent is fabricated, for example by injection molding, as a unitary plastic part. The roof vent is weatherproof and inexpensive to manufacture. A duct adapter snaps into the roof vent to permit the connection of ducts of various sizes. The duct adapter has a stepped portion with cylindrical steps dimensioned to fit inside standard ducts of two different diameters. A collar dimensioned to fit around the outside surface of a larger duct extends around the duct adapter. A flap valve at the upper end of the duct adapter closes the duct when air is not flowing out through the duct.
Patent CA-2337240-C (CA)
Title: Disturbance-free electromyographic probe
Inventor: SINDERBY CHRISTER
IPC: A61B5/03
Filed: 1999-07-16
Granted: 2011-01-25
Abstract: A myographic probe for detecting an electrical signal produced by a muscle and for reducing the influence of electrode disturbances. The probe includes electrodes and a disturbance reducing interface covering each electrode thereby segragating the electrodes from the muscle. Electrode disturbances include problems such as those related to the motion of the electrodes, changes in the pressure applied to the electrode, and/or intermittent contact with sourrounding tissue. The disturbance reducing interface is ion permeable and is, when dry, less conductive than the electrodes. The disturbance reducing interface may comprise a matrix of permeable material such as a mesh, foam, or other porous materials. The probe may be in the form of a catheter and be advantageously used in a human cavity such as the oesophagus. Another advantage of the invention is the possibility of using electrodes which are different from conventional wound wire electrodes.
Patent CA-2340925-C (CA)
Title: Transgenic amorpha-4,11-diene synthesis
Inventor: WALLAART THORVALD EELCO
IPC: C12P17/18
Filed: 1999-08-27
Granted: 2011-07-12
Abstract: The present invention relates to an isolated DNA sequence encoding a polypeptide having the biological activity of amorpha-4,11-diene synthase.  This DNA sequence can be used for the transformation of bacteria, yeasts and plants for the production of amorpha-4,11-diene, a specific precursor in the synthesis of artemisinin, in the respective organisms. The invention also relates to these organisms.
Patent CA-2342570-C (CA)
Title: Pumped liquid cooling system using a phase change refrigerant
Inventor: MARSALA JOSEPH
IPC: F25D9/00
Filed: 2001-04-03
Granted: 2010-07-20
Abstract: An improved cooling system provides cooling away from the surface of electrical and electronic components with very low parasitic power consumption and very high heat transfer rates. The component to be cooled is in thermal contact with a cold plate evaporator device. Refrigerant is circulated by a liquid refrigerant pump to the cold plate evaporator device, and the liquid refrigerant is at least partially evaporated by the heat generated by the component. The vapor is condensed by a conventional condenser coil and the condensed liquid along with any unevaporated liquid is returned to the pump. The system operates nearly isothermally in both evaporation and condensation.
Patent CA-2344411-C (CA)
Inventor: NEHER KAROLA
IPC: A61K31/44
Filed: 1999-09-20
Granted: 2009-01-20
Abstract: 2-Arylalkylthio-imidazoles, 2-arylalcényl-thio-imidiazoles et 2-arylalcynyl-thio-imidazoles en tant que substances anti-inflammatoires et substances inhibant la libération des cytokines. La présente invention concerne des dérivés de 4-hétéroaryl-5-phényl-imidazole à substitution 2-arylalkylthio-, 2-arylalcénylthio et 2-arylalcynylthio de formule générale (I), dans laquelle Ar représente un reste phényle, Het représente un reste hétéroaromatique, A représente une chaîne alkylène, R<1> représente un groupe alkylthio, alkylsulfinyle, alkylsulfonyle, sulfonamido ou alkylcarbonyle et R<2> représente un groupe alkyle, hydroxy, alcoxy, alcoxycarbonyle, sulfonamido, carboxyle, nitro et aminocarbonyle ou un atome d'halogène. n peut valoir entre 1 et 2 et m vaut de 0 à 2. Les composés selon la présente invention ont une activité anti-inflammatoire.
Patent CA-2348928-C (CA)
Title: Lps with reduced toxicity from genetically modified gram negative bacteria
Inventor: VAN DER LEY PETER ANDRE
IPC: A61K31/715
Filed: 1998-11-03
Granted: 2010-01-26
Abstract: The subject invention lies in the field of vaccines. Specifically new compounds that can be used as adjuvants are provided. Recombinant LPS having a reduced number of secondary acyl chains per molecule of LPS vis a vis the corre-sponding non modified LPS molecule, said sec-ondary acyl chains being bound to primary acyl chains, said primary acyl chains being bound to the glucosamine of said recombinant LPS mol-ecule, said recombinant LPS being homogenous in acylation pattern is an example of such a com-pound. Also recombinant LPS having a phos-phate group attached to the glucosamine at the non reducing end of the LPS molecule and a phosphate group attached to the glucosamine at the reducing end of the molecule per recombi-nant LPS molecule provides a further example.
Patent CA-2350214-C (CA)
Inventor: BERTHOLDT HORST-OTTO
IPC: G21F9/28
Filed: 1999-11-02
Granted: 2007-05-01
Abstract: The invention relates to a method for decontaminating the surface of a steel component, especially of a low-grade alloy or unalloyed steel. To this end, the surface is contacted with a solution that contains an organic acid. According to the invention, the solution also contains ferrous ions in order to immediately produce a protective coating on a base metal surface which has just been stripped. When the actual decontamination is terminated and the coating layer is no longer needed, the content of these ferrous ions in the solution is reduced so that the coating layer is degraded by normal disintegration. The ferrous ions no longer needed are bound to an ion exchange resin. The ions that have caused the contamination are also bound to said ion exchange resin.
Patent CA-2351175-C (CA)
Inventor: PRUTHI PARAG
IPC: H04M11/00
Filed: 1999-11-23
Granted: 2016-05-03
Abstract: A method for monitoring data on a first communication line. Data is received from the first communication line and a plurality of packets are extracted from the data. Statistics are then recursively generated, the statistics corresponding to the plurality of packets.
Patent CA-2353566-C (CA)
Inventor: TENEYCK JOHN D
IPC: D04H1/46
Filed: 1999-12-07
Granted: 2007-01-09
Abstract: A non-intumescent mat (20) for providing a support structure for low temperature fragile structures (18) in exhaust treatment devices (10), such as catalytic converters, diesel particulate traps, and like, including amorphous inorganic fibers. The fibers have Young's Modulus of less than about 20.times.10 6 psi and a geometric mean diameter of less than about 5 .mu.m. The mat (20) is adapted to provide a holding force of at least 5 psi throughout an average mat temperature range from ambient temperature up to at least about 350 .degree.C. The amorphous inorganic fibers are preferably melt formed fibers including the fiberizatio n product of a melt including alumina/silica.