baber/WOPTO huggingface dataset:
Patent CA-2338682-A1 (CA)
Title: Network fault isolation
Inventor: ROSEN JOSEPH S
IPC: H04L69/40
Filed: 2000-04-17
Abstract: Techniques are provided for improved fault isolation and fault reduction. A  system for use with a data network includes multiple diagnostic units each adapted to communicate with the network including to a network user. A central controller is operatively connected to the diagnostic units, the controller being adapted to communicate with and coordinate operations of the diagnostic units, to instruct the diagnostic units to perform tests adapted to help isolate a network fault, and to analyze test results received from a diagnostic unit to attempt to determine the network fault. Various methods for improving fault isolation and fault reduction are also provided.
Patent CA-2339417-A1 (CA)
Title: Well tubing rotator
Inventor: MEEK ROBERT K
IPC: E21B43/12
Filed: 2001-03-05
Abstract: A mandrel rotator is provided is mounted in a housing for coupling to a well casing head. The mandrel rotator comprises of an annular gear having external gear teeth and an axial opening. The annular gear is coupled to a mandrel outer surface, such that rotation of the annular gear causes rotation of the mandrel. A retainer limits or prevents axial movement of gear within the housing. A second gear is coupled to the annular gear for rotating the annular gear.
Patent CA-2339783-A1 (CA)
Title: Fault tolerant computer system
Inventor: RONSTROM MIKAEL
IPC: G06F11/20
Filed: 1999-08-09
Abstract: Fault tolerant computer system and method requiring reduced inter-unit communications. A primary system is arranged to execute event processes in response to received commands. Each time the execution of an event process i s halted, due to normal termination or an interrupt, an event generator generates an event message indicating the type of event process and the reas on or timing for halting the event process. The event message is used to instru ct a backup system to execute the same event process. Since the event message also specifies the reason and the timing for halting the event process, the execution of the event process can be replicated at the backup system. Thus,  the primary system and the at least one backup system will be synchronized. At least one standby system may be provided for recording in an event log the sequence of event messages, and for storing an archive copy of memory conten ts of the primary system. The event log with the archive copy may be used to restore the system state of the primary system.
Patent CA-2341107-A1 (CA)
Title: Semiconductor optical devices
Inventor: KETELSEN LEONARD JAN-PETER
IPC: G02B6/13
Filed: 2001-03-21
Abstract: The invention is a semiconductor optical device and a method of manufacture. The device (10) includes a first waveguide (15) having an edge (31), and a second waveguide (12) adjacent to at least a portion of the first waveguide including the edge so that light is coupled from the first to the second waveguide. The second waveguide has a modal index which is essentially constant at least at the edge of the first waveguide. The method includes forming at least the second waveguide by Selective Area Growth (SAG) using oxide pads (61, 62) of a particular geometry to achieve the essentially constant modal index. In one embodiment, the device is an expanded beam laser with an expander portion (10b) which is less than 300 microns FIG. 1.
Patent CA-2341439-A1 (CA)
Title: A constrained-envelope digital-communications transmission system and method therefor
Inventor: BADKE BRADLEY P
IPC: H04L27/20
Filed: 1999-08-03
Abstract: A constrained-envelope digital-communications transmitter circuit (22) in which a binary data source (32) provides an input signal stream (34), a phase mapper (44) maps the input signal stream (34) into a quadrature phase-point signal stream (50) having a predetermined number of symbols per unit baud interval (64) and defining a phase point (54) in a phase-point constellation (46), a pulse-spreading filter (76) filters the phase-point signal stream (50) into a filtered signal stream (74), a constrained-envelope generator (106) generates a constrained-bandwidth error signal stream (108) from the filtered signal stream (74), a delay element (138) delays the filtered signal stream (74) into a delayed signal stream (140) synchronized with the constrained-bandwidth error signal stream (108), a complex summing circuit (110) sums the delayed signal stream (140) and the constrained-bandwidth error signal stream (108) into a constrained-envelope signal stream (112), and a substantially linear amplifier (146) amplifies the constrained-envelope signal stream (112) and transmits it as a radio-frequency broadcast signal (26).
Patent CA-2342292-A1 (CA)
Title: Condensed plasmid-liposome complex for transfection
Inventor: HUANG SHI KUN
IPC: C12N15/09
Filed: 1998-09-11
Abstract: A plasmid-liposome composition for transfection of a cell is described. The composition includes plasmid molecules condensed with a polycationic condensing agent and cationic liposomes. Also disclosed is a method for preparing the plasmid-liposome complexes.
Patent CA-2344212-A1 (CA)
Inventor: YAMAMOTO HIDEHIRO
IPC: A61B1/313
Filed: 1999-09-17
Abstract: An endoscope power supplying appliance comprising an operation unit, a cylinder unit and an electrode that is used by inserting an endoscope, wherein the electrode is set at the distal end of the cylinder unit and the operation unit at the other end, an optical lens portion of the endoscope inserted into the power supplying appliance is capable of protruding beyond the end of the power supplying appliance, and the endoscope can move along an axial direction of the power supplying appliance. Further the endoscope power supplying appliance of this invention is effective for treatment such as coagulation of microvessels performed under endoscope and in particular blocking operation of sympathetic nerves in the chest region performed under endoscope, only one minimized skin incision allows the operation. Because it is not necessary to insert the appliance or pull it out of the body during the operation, frictional irritation to the incised portion is only caused at the time of insertion and extraction of the appliance before and after the operation, which minimizes the damage of the incised portion. Consequently the patient does not necessarily hospitalize.for a long time and may leave hospital and go home on the day of operation.
Patent CA-2349171-A1 (CA)
Title: Dual operation mode filter using superconducting resonators
Inventor: ABDELMONEM AMR
IPC: H01P1/205
Filed: 1999-09-14
Abstract: A dual operation mode all temperature filter is provided. The dual operation mode filter is provided with a housing defining at least two cavities, an input port and an output port. It is also provided with a non-superconducting resonator disposed in a first one of the cavities and a superconducting resonator disposed in a second one of the cavities. The second resonator comprises a superconducting material containing 8-15 % silver. The dual operation mode filter filters at a relatively high level at temperatures below a threshold temperature and at a lower, conventional level, at temperatures below the threshold.
Patent CA-2351211-A1 (CA)
Title: Text mining method and apparatus for extracting features of documents
Inventor: MIZOBUCHI SHINJI
IPC: G06F17/30
Filed: 2001-06-22
Abstract: Concerning feature extraction of documents in text mining, a method and an apparatus for extracting features having the same nature as those by LSA are provided that require smaller memory space and simpler program and apparatus than the apparatus for executing LSA. Features of each document are extracted by feature extracting means on the basis of a term-document matrix updated by term-document updating means and of a basis vector, spanning a space of effective features, calculated by basis vector calculating means. Execution of respective means is repeated until a predetermined requirement given by a user is satisfied.
Patent CA-2353669-A1 (CA)
Title: Saw arbor and guided circular saw
Inventor: STROUD GARY ARTHUR
IPC: B23D47/00
Filed: 1997-07-11
Abstract: An arbor for a guided circular saw has three symmetrical lobes. The lobes have end regions with profiles which follow an arc centred on an axis of rotation of the arbor. The lobes have driving regions with profiles which follow the arc of a circle centred in an opposing lobe. A saw for use with the arbor has an eye with a shape which follows the contour of the arbor. The saw is capable of floating axially along the arbor. The saw and arbor can be used to advantage in sawing machines such as edgers. The arbor provides a much larger saw contact area than do prior art arbors. In one embodiment of the invention the saw is mounted between a pair of spaced apart collars on the arbor. The collars guide the saw but are not tightly clamped to the saw.
Patent CA-2354627-A1 (CA)
Title: Low-power programmable digital filter
Inventor: MATHE LENNART
IPC: H04B3/06
Filed: 1999-12-14
Abstract: A low power programmable digital filter (10) adapted for use with a telecommunications system transceiver. The digital filter (10) includes a first finite impulse response filter section for receiving an input signal and having a first transfer function. An infinite impulse response filter section (18) is connected to the first finite impulse response filter section and has a second transfer function. A second finite impulse response filter section (22) is connected to the infinite impulse response filter section and outputs a filtered output signal in response to the receipt of the input signal (28) by the programmable digital filter (10).
Patent CA-2356898-A1 (CA)
Title: Indole derivatives and their use as mcp-1 antagonists
Inventor: FAULL ALAN WELLINGTON
IPC: C07D209/42
Filed: 2000-01-31
Abstract: A compound of formula (I) wherein R1 is hydrogen, halo or methoxy; R2 is hydrogen, halo, methyl, ethyl or methoxy; R3 is carboxy, tetrazolyl, or -CONHSO2R4 where R4 is methyl, ethyl, phenyl, 2,5-dimethylisoxazolyl or trifluoromethyl; T is -CH2- or -SO2-; and ring A is 3-chlorophenyl, 4-chlorophenyl, 3-trifluoromethylphenyl, 3,4-dichlorophenyl, 3,4-difluorophenyl, 3-fluoro-4-chlorophenyl, 3-chloro-4-fluorophenyl or 2,3-dichloropyrid-5-yl; or a pharmaceutically acceptable salt or prodrug thereof, as well as pharmaceutical compositions containing them are described and claimed. These compounds and compositions are useful in the treatment of disease mediated by monocyte chemoattractant protein-1 or RANTES (Regulated Upon Activation, Normal T-cell Expressed and Secreted), such as inflammatory disease.
Patent CA-2356974-A1 (CA)
Inventor: UREN WAYNE E
IPC: B65D5/52
Filed: 2000-10-31
Abstract: L'invention concerne un récipient de transport et de présentation (10) comprenant un produit empaqueté (130) destiné à être transporté et présenté à des consommateurs. Ce récipient permet de réduire l'espace de transport et la manipulation manuelle des paquets individuels qu'il contient. Il comporte des parois latérales (14, 16) et des parois supérieure et inférieure (22, 20) définissant un compartiment, ainsi qu'une partie amovible fixée au récipient au cours du transport du produit empaqueté et retirée de façon à découvrir une ouverture destinée à la présentation d'un produit de consommation. Ledit récipient comprend également une pluralité d'articles empaquetés de forme irrégulière comportant chacun une carte de présentation (132) ainsi qu'un boîtier (134) destiné à loger un ou plusieurs produits, ledit boîtier présentant une épaisseur sensiblement plus importante que celle de la carte de présentation. Ce dispositif comprend un article empaqueté supérieur décalé reposant sur un article empaqueté inférieur, d'où une utilisation avantageuse de l'espace du récipient. Ces paquets peuvent également comprendre un organe de retenue destiné à retenir l'article empaqueté supérieur reposant sur l'article empaqueté inférieur.
Patent CA-2357024-A1 (CA)
Inventor: HOU ZHIGUO
IPC: B01J27/24
Filed: 2000-01-14
Abstract: L'invention concerne un procédé d'hydrodésulfuration à deux étages destiné à produire des distillats à basse teneur en soufre. Une charge d'alimentation à plage d'ébullition du distillat contenant en excès environ 3.000 mg/l en poids de soufre est hydrodésulfurée dans un premier étage d'hydrodésulfuration comprenant une ou plusieurs zones de réaction, en présence d'hydrogène et d'un catalyseur d'hydrodésulfuration. Le débit diluat liquide résultant est soumis à une première étape de séparation pour obtenir un débit diluat en phase vapeur et un débit diluat liquide. Le débit diluat liquide, qui présente une teneur en soufre et en azote sensiblement inférieure à celle de la charge d'alimentation initiale, est placé dans un deuxième étage d'hydrodésulfuration comprenant une ou plusieurs zones de réaction et soumis à une réaction en présence d'hydrogène et d'un deuxième catalyseur d'hydrodésulfuration, dans des conditions d'hydrodésulfuration. Le catalyseur, quelle que soit la zone (ou les zones) dans laquelle il est mis en oeuvre, est un catalyseur multimétallique en vrac constitué d'au moins un métal non noble du Groupe VIII et d'au moins deux métaux du Groupe VIB.
Patent CA-2360267-A1 (CA)
Title: Toilet cover
Inventor: ZWEZDARYK SHANE
IPC: A47K13/00
Filed: 2001-10-26
Abstract: In one of its' aspects, the invention provides a chair for covering a bathroom toilet with a tank, a hinged seat, a bowl, and a flushing handle. The chair has a tank cover for covering the tank of the toilet, and a bowl cover connected to the tank cover for covering the hinged seat and the bowl of the toilet. The bowl cover has a hinged seat cover and a front portion. The front portion has a protrusion for receiving the front part of the bowl of the toilet to allow the front part of the bowl to extend outwardly beyond a remainder of the front portion. The chair also has a pair of arm rests coupled with the tank cover, each arm rest having a front portion and a back portion. The arm rests are undercut to create a space between the bowl cover and the front portion of the arm rests to admit a user's thighs. The claim further has first and second pedal assemblies operably connected to the hinged seat cover and the hinged seat cover and hinged seat from the closed to the opened positions.
Patent CA-2361915-A1 (CA)
Title: Improved slab of resin-bound agglomerate materials and related manufacturing process
Inventor: TONCELLI MARCELLO
IPC: B29C43/34
Filed: 2000-12-08
Abstract: Composite product formed by a slab consisting of an agglomerate of granular and filamentous inorganic materials bound with the use of structural resins which is coupled to a foil of thermoplastic material, and manufactured with a process comprising the steps of: a) preparation of a mixture capable of releasing air, i.e. adapted to be de-aerated; b) association to the mixture of a foil of thermoplastic material having hollow protrusions that are closed a t their end facing the mixture; c) transfer of the mixture, enclosed between a  sheet or tray and a cover, to a press where it is de-aerated and pressed und er vacuum in order to obtain the manufactured product in a raw state; d) application of heat to said raw product, while it still is enclosed between the above mentioned sheet or tray and cover, through a pair of heating plane s in order to harden the binding resin.
Patent CA-2362113-A1 (CA)
Inventor: ARONLD STEVEN
IPC: G01L7/00
Filed: 2000-02-11
Abstract: L'invention concerne un appareil (620) d'administration de liquides à un débit régulé avec précision, comprenant un élément de distribution d'un liquide (Fig. 3) équipé d'un réservoir à liquide (632) contenant les liquides a administrer, et un élément de remplissage (622) amovible du réservoir qui peut être relié amovible à l'élément de distribution d'un liquide. L'ensemble de remplissage du réservoir est conçu d'une façon unique pour pouvoir recevoir un flacon (626) de conception classique préalablement rempli en usine avec le liquide médicamenteux à administrer au patient. L'élément de distribution comprend un témoin d'écoulement du liquide totalement nouveau qui donne une indication visuelle facile à lire sur l'état de l'écoulement du liquide dans le dispositif.
Patent CA-2362241-A1 (CA)
Title: Ultrasonic probe with low-friction bushings
Inventor: BRUMBACH JOHN C
IPC: A61B17/32
Filed: 2000-02-15
Abstract: An ultrasonic probe assembly (24) is provided. The probe assembly (24) includes a cannula (40), and an ultrasonic probe (22) disposed within the cannula (40). The probe assembly (24) further includes a low friction bushing (28) disposed within the cannula (40), adapted to maintain the cannula (40), and ultrasonic probe (22) in a relatively fixed longitudinal relationship.
Patent CA-2363188-A1 (CA)
Title: Ains land surveyor system with reprocessing, ains-lssrp
Inventor: LITHOPOULOS ERIK
IPC: G01C21/16
Filed: 2001-11-19
Abstract: A Land Surveyor System with Reprocessing is carried by a surveyor moving from a first known position at the start of a survey interval to a second known position at the end of the survey interval has an AINS (aided inertial navigation system) that provides a continuing sequence of time-indexed present position values. A  Position Computing System uses a program that stores the sequence of time-indexed present position values in a memory. A reprocessing computer and program is activated at the second known position to access and process the continuing sequence of time-indexed present position values with a smoothing program to provide indexed and adjusted present position values for at least some of the time-indexed present position values. The system is packaged for transport and use by a surveyor. A switch permits the surveyor to signal that the unit is stationary as a reset for the AINS.
Patent CA-2365686-A1 (CA)
Inventor: KUMMELER FERDINAND
IPC: D06M101/16
Filed: 2000-03-16
Abstract: Agents de traitement pour textiles, qui contiennent des prépolymères de polyisocyanate à blocage bisulfite ainsi que des compositions spéciales d'adoucissants. Lesdits agents de traitement peuvent être appliqués sur des matières textiles dans le cadre de tous les procédés connus de finissage, en particulier le procédé par épuisement. Les matières textiles ainsi finies présentent une très bonne hydrophilie, sont moelleux au toucher et possèdent d'excellentes propriétés anti-électrostatiques.
Patent CA-2366215-A1 (CA)
Title: Ground water thermal transfer method and apparatus
Inventor: REYNOLDS RAY D
IPC: A01K7/02
Filed: 2001-12-24
Abstract: A drinking water facility for animals includes an elongate tank with an open upper end at or above ground level extending to a closed end below ground frost line with a water inlet source into the tank below the frost line. A pipe located within the tank serves as a conduit to cause a constant current through the pipe and exterior to pipe to prevent freezing of water in the tank. An induced Bernoulli effect aid in the proper circulation of water.
Patent CA-2368277-A1 (CA)
Inventor: MENDOLIA MICHAEL S
IPC: C07C409/34
Filed: 2002-01-17
Abstract: Thermally stabilized initiator compositions comprising: (a) at least one dialkyl peroxydicarbonate, and (b) a stabilizing effective amount of a compound of Structure I:      wherein R1 and R2 areas defined in the summary of the invention section, processes for their preparation and use are disclosed.
Patent CA-2370234-A1 (CA)
Inventor: SCOTT CHRISTOPHER
IPC: A01G1/00
Filed: 2000-04-20
Abstract: Improved growing pans (24) for aeration of modular plant units are provided comprising a network of air channels (10) in fluid communication with a plurality of aeration orifices (22) at the bottom surface of the pans (24). Optimum gaseous mixtures are forced up through the growing medium (14) to provide evenly distributed air pockets throughout plant root systems. Alternatively, gases may be suctioned out of the growing medium (14). This invention provides for soil aeration for all types of growing media, promoti ng stronger and deeper root growth. Circulation of air is provided, removing carbon dioxide, methane, hydrogen sulfide and other harmful gases from the root systems and surrounding plant environment.
Patent CA-2370659-A1 (CA)
Inventor: LYNCH KEVIN J
IPC: C12N15/09
Filed: 2000-04-21
Abstract: The subject invention relates to the P2X3 receptor, methods of modulating the activity of the P2X3 receptor and to uses of these methods. In particular, such methods may be used, for example, to accelerate the rate of resensitization of a desensitized receptor.
Patent CA-2373610-A1 (CA)
Title: Substituted polycyclic aryl and heteroaryl uracils as anticoagulative agents
Inventor: JONES DARIN E
IPC: A61P7/02
Filed: 2000-05-18
Abstract: The invention relates to substituted polycyclic aryl and heteroaryl uracil compounds useful as inhibitors of serine proteases of the coagulation cascade and compounds, compositions and methods for anticoagulant therapy for the treatment and prevention of a variety of thrombotic conditions including coronary artery and cerebrovascular diseases.
Patent CA-2373835-A1 (CA)
Inventor: GHOSH AMITAVA
IPC: H04L1/00
Filed: 2001-03-12
Abstract: A mobile station (402) selects (1802) a preferred cell site for transmitting a frame of data to be sent subsequently to the mobile station. A base station (602) of the preferred cell site schedules (1804) a transmission of the frame of data, wherein parameters for the transmission are determined by the base station from recently-measured channel and interference information. Thereafter, the base station sends (1806) the frame of data from the preferred cell site; and an active set of base stations associated with the mobile station at ones of a plurality of cell sites synchronize (1808) their data queues to reflect the transmission of the frame of data.
Patent CA-2377130-A1 (CA)
Inventor: STEENSON JAMES HENRY JR
IPC: A61G5/04
Filed: 1999-12-09
Abstract: An apparatus and method for a pitch state estimator is provided. The pitch state estimator generates a pitch state signal for establishing the orientation used in the control of a ground-traversing vehicle. The vehicle has a support for supporting a load which is preferably a human passenger. I n one embodiment, the pitch state estimator includes a pitch sensor connected to the vehicle producing a pitch signal representing an estimate of a pitch ang le of the vehicle. The pitch angle is associated with a coordinate system referenced to gravity. The pitch state estimator also includes at least one inertial reference sensor connected to the vehicle producing an inertial orientation signal with respect to the vehicle. Further included is a state estimator module for receiving the pitch signal and the inertial orientation  signal and calculating a pitch state signal from the inertial orientation signal and the pitch signal sensor. The pitch state signal is provided to a control loop of the vehicle for dynamically maintaining stability of the vehicle.
Patent CA-2378512-A1 (CA)
Inventor: KINZLER KENNETH
IPC: C12N5/10
Filed: 2000-06-14
Abstract: Yeast genes which are differentially expressed during the cell cycle are described. They can be used to study, affect, and monitor the cell cycle of a eukaryotic cell. They can be used to obtain human homologs involved in cell cycle regulation. They can be used to identify antifungal agents and other classes of drugs. They can be formed into arrays on solid supports for interrogation of a cell's transcriptome under various conditions.
Patent CA-2381367-A1 (CA)
Inventor: KOMATSU HIRONORI
IPC: C07H1/06
Filed: 2002-04-10
Abstract: A method for efficiently purifying 5' protected 2' -deoxypurine nucleosides, efficient production of which has previously been difficult. Impurities can be separated by obtaining the 5' protected 2'-deoxypurine nucleoside as an inclusion crystal including a solvent such as that having a nitrile structure in order to purify the 5' protected 2'-deoxygurine nucleoside at a high purity. This invention enables synthesis of highly purified protected deoxypurine nucleosides easily on a large scale, which has previously been performed by column chromatography method.