baber/WOPTO huggingface dataset:
Patent CA-2288087-C (CA)
Title: Ferroresonant transformer ballast for maintaining the current of gas discharge lamps at a predetermined value
Inventor: JANIK RAYMOND G
IPC: H05B41/28
Filed: 1998-02-11
Granted: 2003-04-22
Abstract: The present invention relates to a ferroresonant transformer ballast for regulating the current of gas discharge lamps, the ballast comprising a magnetic core; a first coil wound about the magnetic core and energizable from a variable source for supplying a changing input voltage and current; a second coil wound about the magnetic core and magnetically coupled to the first coil so as to induce a voltage across terminals of the second coil in response to a change in current from the first coil; an output capacitor connected across the terminals of the second coil for resonance; a third coil wound about the magnetic core and magnetically coupled to the second coil so as to induce a voltage across terminals of the third coil in proportion to the average voltage across the output capacitor; at least one gas discharge lamp connected across terminals of the third coil whereby voltage across the gas discharge lamp is regulated in response to the average voltage of the output capacitor; a control inductor to be switchably coupled in electrically parallel relationship with the output capacitor; and means for switching the control inductor in a pulsing manner into and out of parallel relationship with the output capacitor in response to a current level of the gas discharge lamp to substantially maintain the current level of the gas discharge lamp at a predetermined value when the lamp is operating in a steady state mode, the switching means including a switch having terminals coupled in series with the control inductor.
Patent CA-2292341-C (CA)
Inventor: KREPELA JAN
IPC: G01R31/34
Filed: 1999-12-16
Granted: 2007-01-02
Abstract: A method of testing rotor bars in a squirrel cage electric motor. An electric current is passed through a rotor cage, so that current flows through the rotor bars being tested. A relative strength of flux generated by the electric current passing through the rotor bars is compared. A marked difference in flux strength indicates a broken rotor bar. The method is of sufficient resolution as to leave no doubt as to when a rotor bar is damaged. By way of example, in one test a broken rotor bar recorded a reading of 25 millivolts, as compared with readings of 140 millivolts for all of the other rotor bars.
Patent CA-2294710-C (CA)
Title: Waste heat steam generator
Inventor: SCHWARZOTT WERNER
IPC: F22G7/12
Filed: 1998-06-17
Granted: 2007-05-22
Abstract: So that, to achieve as high a plant efficiency as possible, a waste-heat steam generator (1), in particular for a combined-cycle power plant, with an number of heating surfaces (2,3,4), heatable by means of flue gas (RG) and carrying a medium (SW) to be heated, can be operated even at critical or supercritical pressure, a once-through evaporator (3) connected in countercurrent to the flue gas (RG) is provided on the medium side, the said evaporator being followed by a preheater (2) and preceded by a superheater (4) on the flue-gas side.
Patent CA-2297150-C (CA)
Inventor: ENDELMAN KEN
IPC: A63B21/045
Filed: 1998-07-22
Granted: 2006-05-23
Abstract: A cushioned exercise apparatus is disclosed which preferably includes a sing le spring steel band or strap coiled into a plurality of spiral wraps forming a circular ring and a pair of handles fastened to the ring. This ring and handle assembly is covered with an enclosing and cushioning layer of rubber or elastomeric plastic material substantially enclosing the assembly and forming a hermetic seal around the assembly to prevent moisture from entering into and damaging the coiled stra p ring. The cover also provides a comfortable, cushioning non-slip surface for contact with the user's skin, hands and/or legs during exercise.
Patent CA-2297703-C (CA)
Inventor: COOK ROB A
IPC: B62D25/08
Filed: 2000-02-03
Granted: 2008-09-09
Abstract: An air intake manifold for providing air from an exterior of a vehicle to a ventilation system of the vehicle. A primary plenum chamber has an intake passageway formed therein. The intake passageway is adapted to allow air from the exterior of the vehicle to enter the primary plenum chamber. A secondary plenum chamber is located within the primary plenum chamber. A shield is attached to the primary plenum chamber and extends over the secondary plenum chamber. A secondary inlet passageway is formed in an upper portion of the secondary plenum chamber. The secondary inlet passageway fluidly connects the primary plenum chamber to the secondary plenum chamber. A filter member covers the secondary inlet passageway to prevent debris from entering the secondary plenum chamber via the secondary inlet passageway. An outlet passageway is formed in the secondary plenum chamber. The outlet passageway fluidly connects the secondary plenum chamber to the ventilation system. A primary drain passageway is formed in a lower portion of the primary plenum chamber. A secondary drain passageway is formed in a lower portion of the secondary plenum chamber to fluidly connect the secondary plenum chamber to the primary plenum chamber.
Patent CA-2298594-C (CA)
Inventor: MCLAUGHLIN PAUL F
IPC: H04L69/40
Filed: 1998-08-21
Granted: 2007-05-15
Abstract: The present invention provides systems and methods for controlling associated processes of a process facility and, in particular, for distributing data among various nodes of a real time process control system that controls such a facility. An exemplary process control system includes a plurality of sensors, controllable devices, and communication paths, as well as a computer system. The sensors and controllable devices are associated with various ones of the processes of the process facility, and the communication paths associate the sensors and controllable devices with the computer system. The computer system operates on data relating to the process facility, and distributes the data among the nodes thereof.  The nodes are associated by the communication paths, and the computer system further includes notification controllers. The notification controllers are associated with the nodes, and operate to sense reestablishment of lost ones of the communications paths from first distributed nodes to second distributed nodes and, in response thereto, communicate notification data from the second distributed nodes to the first distributed nodes.
Patent CA-2299419-C (CA)
Title: Metallurgical process for manufacturing electrowinning lead and lead alloy electrodes
Inventor: LEHOCKEY EDWARD M
IPC: C22F1/00
Filed: 1998-08-04
Granted: 2003-11-18
Abstract: Lead and lead-alloy anodes for electrowinning metals such as zinc, copper, lead, tin, nickel and manganese from sulfuric acid solutions, whereby the electrodes are processed by a repetitive sequence of cold deformation and recrystallization heat treatment, within specified limits of deformation, temperature and annealing time, to achieve an improved microstructure consisting of a high frequency of special low .SIGMA. CSL grain boundaries (i.e. 50 %). The resultant electrodes possess significantly improved resistance to intergranular corrosion, and yield (1) extended service life, (2) the potential for reduction in electrode thickness with a commensurate increase in the number of electrodes per electrowinning cell, and (3) the opportunity to extract higher purity metal product.
Patent CA-2302530-C (CA)
Title: Breathable elastic film and laminate
Inventor: MORMAN MICHAEL TOD
IPC: B32B27/12
Filed: 1998-09-10
Granted: 2006-11-28
Abstract: A soft, breathable elastic laminate of an elastic film (10) loaded with a filler having a particle size suitable for pore formation and stretched in at least two directions to form a plurality of micropores bonded to a nonwoven web (30). In accordance with one embodiment, the elastic film is water vapor impermeable prior to being stretched.
Patent CA-2303001-C (CA)
Title: Scheme for information delivery to mobile computers using cache servers
Inventor: KATO NORIYASU
IPC: G06F17/30
Filed: 2000-03-23
Granted: 2004-12-07
Abstract: In the disclosed information delivery scheme for delivering WWW information provided by information servers on the Internet to mobile computers connected to the Internet through a wireless network, a plurality of cache servers capable of caching WWW information provided by the information servers are provided in association with the wireless network. The cache servers can be managed by receiving a message indicating at least a connected location of a mobile computer in the wireless network from the mobile computer, selecting one or more cache servers located nearby the mobile computer according to the message, and controlling these one or more cache servers to cache selected WWW information selected for the mobile computer, so as to enable faster accesses to the selected WWW information by the mobile computer. Also, the cache servers can be managed by selecting one or more cache servers located within a geographic range defined for an information provider who provides WWW information from an information server, and controlling these one or more cache servers to cache selected WWW information selected for the information provider, so as to enable faster accesses to the selected WWW information by the mobile computer.
Patent CA-2303214-C (CA)
Inventor: LEDEORE CHRISTOPHE
IPC: C10L1/198
Filed: 1998-09-14
Granted: 2008-10-14
Abstract: Produits obtenus à partir d'acides polycarboxyliques et d'époxydes qui constituent des additifs à pouvoir lubrifiant utiles.
Patent CA-2304376-C (CA)
Title: Dna-construct for the tissue-specific expression of a blood coagulation factor
Inventor: NEGRIER CLAUDE
IPC: C12N15/12
Filed: 2000-04-28
Granted: 2010-06-01
Abstract: A DNA-construct has been disclosed which is suitable for a tissue-specific expression of a blood coagulation factor like Factor IX, which comprises a DNA coding for an amino acid sequence of a blood coagulation factor and a DNA coding for a promoter which is specific for the expression in hematopoietic cells.
Patent CA-2305256-C (CA)
Title: Suspensions de mometasone furoate pour la nebulisation
Inventor: HARRIS DAVID
IPC: A61P11/08
Filed: 1998-10-06
Granted: 2005-05-17
Abstract: La présente invention concerne une suspension aqueuse pour nébuliseur contenant de l'eau, du mometasone furoate monohydrate, un agent de surface non-ionique, un sel soluble et éventuellement une solution-tampon de pH. Ladite suspension peut être préparée par la technique d'ultrasonation ou de broyage à jet fluide.
Patent CA-2307039-C (CA)
Inventor: SHARON MICHAEL
IPC: B28B23/00
Filed: 1998-11-01
Granted: 2005-07-26
Abstract: A method for producing a wall, vertical or horizontal precast concrete article, walkway and roadway of at least one modular decorative article (100) including a plurality of separate stones (I) of cured hardened material (5) and a plurality of rods (7h and 7v) connecting the stones (1) together. The decorative article (100) is created inside at least one mold (200) including (a) an exterior mold frame (80) that includes a horizontal bottom (4) and vertical perimeter walls (3) and (b) an interior form (90) that comprises a plurality of vertical interconnected beams (10) with grooves (6). The rods (7h and 7v) are placed inside the mold (200) which after casting are anchored inside the hardened material (5) and become an inseparable part of the decorative article (100).
Patent CA-2311890-C (CA)
Title: Method and system for determining position of mobile radio terminals
Inventor: FISCHER SVEN
IPC: H04B7/26
Filed: 1998-11-20
Granted: 2005-04-26
Abstract: A method and apparatus are disclosed for determining more accurately, in a radio environment with time dispersion, the distance between a radio receiver and radio transmitter, by special processing of received radio signals that have been transmitted repeatedly from the same radio transmitter and are possibly subject to multipath propagation. The Time of Arrival (TOA) of the received radio signals is repeatedly estimated using channel power profiles. A TOA value near the minimum occurring TOA is selected wherein each estimated TOA is derived from incoherent integration of a randomly chosen number of the received bursts having the same known bit sequence, in order to eliminate the influence of noise.
Patent CA-2316242-C (CA)
Title: Dynamic automatic gain control in a hearing aid
Inventor: LUDVIGSEN CARL
IPC: H04R25/00
Filed: 1997-12-23
Granted: 2003-10-28
Abstract: Automatic gain control in a hearing aid is effected by detecting an input sound level and/or an output sound level and adapting the output sound level supplied by the hearing aid in response to the detected sound level by controlling the gain of the hearing aid towards an actual desired value of the output sound level. The gain control is effected at increases and decreases, respectively, of the input sound level by adjusting the gain towards the actual desired value with an attack time and a release time, respectively, which are adjusted in response to the detected sound level to a relatively short duration providing fast gain adjustment at high input and/or output sound levels and to a relatively long duration providing slow gain adjustment at low input and/or output sound levels.
Patent CA-2321726-C (CA)
Inventor: TAMMENOJA MIKA
IPC: D21G9/00
Filed: 1999-02-22
Granted: 2006-12-19
Abstract: The invention concerns a method for determination of an irreversible stretch and of a dynamic modulus of elasticity from a paper web (W). In the method, the irreversible stretch and the dynamic modulus of elasticity are determined from the paper web (W) by means of on-line measurement. The invention also concerns a method in which the quantities that have been determined are employed in the control of the papermaking process.
Patent CA-2322999-C (CA)
Title: Roue de turbine et turbine de type pelton equipee d'une telle roue
Inventor: ROSSI GEORGES
IPC: F03B1/02
Filed: 1999-03-22
Granted: 2007-02-27
Abstract: Roue de turbine de type Pelton comprenant une jante (1) et plusieurs augets (2) répartis à la périphérie de la jante, caractérisée en ce qu'elle comprend su moins un flasque annulaire (5, 6) solidaire de la jante et pourvu de logements (7) de réception des augets. Le flasque est apte à absorber une partie su moins des efforts transmis par les augets (2) à la jante (1) et forme une bande périphérique (9) au niveau des zones radiales externes des logements (7). La transmission des. efforts des augets (2) à la jante (1) de la roue s'effectue sans création d'une zone de concentration trop importante des contraintes mécaniques.
Patent CA-2324796-C (CA)
Inventor: ITO NAOKI
IPC: A01N63/20
Filed: 2000-10-30
Granted: 2007-11-06
Abstract: A method for eliminating Staphylococcus aureus is disclosed, including inoculating a microorganism of the genus Brachybacterium to Staphylococcus aureus to eliminate Staphylococcus aureus. A care garment, a care sheet or care bedclothes, each being immobilized with a microorganism of genus Brachybacterium, is also disclosed. One of the microorganisms of the genus Brachybacterium useful in the invention is novel and is deposited as a bacterial strain AAA-a of the genus Brachybacterium (Accession No. FERM BP-6848) in the International Depositary Authority for the deposit of microorganism.
Patent CA-2330643-C (CA)
Inventor: DUNN DAVID E
IPC: G08C17/02
Filed: 1999-04-29
Granted: 2004-11-23
Abstract: A communication module as shown in the Fig. that permits remote meter readin g of a utility meter (30) via a wireless modem (12) that communicates using data packet networks (80) along a communications system such as ARDIS (80). The communications module is a microprocessor-based transmitter/receiver (25) which receives data collection requests from a system server (70), initiates data collection from a utility meter, and reports the data back to a host computer system residing, for example, at a central office. Preferably, session-based communication using the meter protocol is implemented between the communcations module and the meter, and packet switching is used between the communications server and the communications module through the network.
Patent CA-2331497-C (CA)
Title: Water-resistant mastic membrane
Inventor: WILLIAMS DARRYL
IPC: C09J7/30
Filed: 1999-05-05
Granted: 2009-02-03
Abstract: This invention provides reinforced, water-resistant structures, and methods of manufacturing and installing such structures. These structures include bituminous mastic material having first and second major surfaces and semi-rigid, open mesh material disposed within the mastic material. The structure may be prefabricated or assembled in situ and can be bonded to an underlying substrate by the application of heat or pressure to form an adherent bond. The reinforced structure has a tensile strength of at least about 300 psi or more.
Patent CA-2333387-C (CA)
Inventor: PALLAS MORENO JORGE
IPC: E02F9/28
Filed: 1999-06-03
Granted: 2006-08-15
Abstract: L'invention concerne un dispositif pour l'accouplement de dents d'excavateur qui est caractérisé en ce que la partie saillante d'accouplement de la dent présente une zone adjacente à la base de la dent. La zone est constituée de faces latérales, toutes deux inclinées depuis ladite base vers l'axe de la pièce et depuis le bord inférieur vers l'intérieur. Cette zone présente une face supérieure inclinée de haut en bas et une face inférieure plate qui se prolonge dans une seconde zone présentant aussi des faces plates s'étendant des bords inférieurs de la partie saillante et présentant une inclinaison vers l'intérieur. La partie saillante d'accouplement se termine en une section postérieure dont les faces latérales s'étendent d'une face supérieure plate et parallèle à l'axe de la pièce, sont inclinées vers l'intérieur, reliées à une face inférieure unique, plane et parallèle à l'axe de la pièce et se terminent au niveau de l'extrémité plate de la partie saillante perpendiculaire à l'axe de la pièce.
Patent CA-2333660-C (CA)
Title: Apparatus and method for processing signals selected from multiple data streams
Inventor: TAWIL CARMEN
IPC: H04N21/438
Filed: 1999-05-27
Granted: 2004-02-17
Abstract: A multiple data stream processing arrangement includes a receiver/signal processor (14) and a plurality of signal input paths (11, 12) which meet at a junction (36). A junction output from the junction (36) provides a single input to the receiver/signal processor (14). A switching arrangement (16) is associated with the plurality of signal input paths (1 l, 12). 1fie switching arrangement (16) includes a switch (31, 32) connected in each signal input path (11, 12). Each switch (31, 32) responds to an enable signal to allow a data stream applied to the respective input path (11, 12) to pass on to the junction (36) and to the receiver/signal processor (14). According to the invention only one signal input path (11, 12) and respective switch (31, 32) is enabled at any given time.
Patent CA-2334679-C (CA)
Inventor: LU TIANBAO
IPC: A61K38/05
Filed: 1999-06-11
Granted: 2012-10-23
Abstract: Pyrazinone compounds are described, including compounds of Formula (I), wherein X is O, NR11 or CH=N, R3-R11, Ra, Rb, Rc, W, m and n are set forth in the specification, as well as hydrates, solvates or pharmaceutically acceptable salts thereof. The compounds of the invention are potent inhibitors of proteases, especially trypsin-like serine proteases, such as chymotrypsin, trypsin, thrombin, plasmin and factor Xa. Certain of the compounds exhibit antithrombotic activity via direct, selective inhibition of thrombin. Compositions for inhibiting loss of blood platelets, inhibiting formation of blood platelet aggregates, inhibiting formation of fibrin, inhibiting thrombus formation, and inhibiting embolus formation are described. Other uses of compounds of the invention are as anticoagulants either embedded in or physically linked to materials used in the manufacture of devices used in blood collection, blood circulation, and blood storage, such as catheters, blood dialysis machines, blood collection syringes and tubes, blood lines and stents. Additionally, the compounds can be detectably labeled and employed for in vivo imaging of thrombi.
Patent CA-2335995-C (CA)
Inventor: KOZIKOWSKI ALAN P
IPC: C07F9/40
Filed: 1999-06-25
Granted: 2007-08-28
Abstract: Préparation et activité biologique d'analogues lipides de 3-désoxy-D-myo-inositol éther en tant qu'inhibiteurs de la signalisation par la phosphatidylinositol-3-kinase et de la croissance cellulaire tumorale. Les composés selon la présente invention sont utiles en tant qu'agents anti-tumoraux qui inhibent efficacement la croissance de cellules de mammifères.
Patent CA-2337566-C (CA)
Inventor: BUDDA CHRIS
IPC: A63B71/12
Filed: 2001-02-20
Granted: 2007-03-27
Abstract: A protective body guard providing a full range of motion that closely tracks the bio-mechanical movement of a joint. The device provides protection against sharp objects, impact and limb movement into positions that may cause injury. The device comprises successive segments made of a hard, impact-resistant, light material and arranged in overlapping fashion and interconnected by means of a single pivot pin in an aperture having an arcuate edge at each side of the segments. Cushioning pads, detachably fixed to the segments, provide protection from contact with the interior of the segments. The device is especially suited for use in the logging industry.
Patent CA-2349400-C (CA)
Inventor: XIANG YING
IPC: E21B10/16
Filed: 2001-05-31
Granted: 2005-10-25
Abstract: Cutting structures for roller cone drill bits are disclosed. One aspect is a drill bit which includes a bit body, and a plurality of roller cones attached to the bit body and able to rotate with respect to the bit body. The bit further includes a plurality of cutting elements arranged on each of the roller cones so that cutting elements on adjacent cones intermesh between the adjacent cones. The cutting elements are arranged so that a rotation speed of each cone differs by less than about 7% from the rotation speed of each of the other cones during drilling. Another aspect is a drill bit which includes a bit body, and a plurality of roller cones attached to the bit body and able to rotate with respect to the bit body. The bit also includes a plurality of cutting elements arranged on each of the roller cones so that cutting elements on adjacent cones intermesh between the adjacent cones. In this aspect, at least one of the cutting elements on each cone comprises a gage cutting element, and the gage cutting elements on each cone are arranged so that the scraping distance of the gage cutting elements on each cone is substantially the same as the scraping distance of the gage cutting elements on each of the other cones.
Patent CA-2353939-C (CA)
Title: Low dust wall repair compound
Inventor: LANGFORD NATHANIEL P
IPC: C04B26/06
Filed: 1999-11-01
Granted: 2010-06-01
Abstract: A wall repair compound useful for filling and repairing cracks, holes, and other imperfections in a wall surface includes a conventional filler material, a conventional binder material, and a dust reducing additive which reduces the quantity of airborne dust particles generated when sanding the hardened joint compound. Airborne dust reducing additives include oils, surfactants, solvents, waxes, and other petroleum derivatives. The additive can be added to conventional ready-mixed joint compounds and to setting type joint compounds. A method of reducing the quantity of airborne dust generated when sanding a fully hardened joint compound includes mixing a sufficient quantity of the dust reducing additive with the joint compound prior to when the joint compound has been applied to the wall.