baber/WOPTO huggingface dataset:
Patent CA-2259553-A1 (CA)
Title: Method for producing cycloolefin (co)polymers for technical applications
Inventor: STUMPF ANDREAS
IPC: C08F10/02
Filed: 1997-07-02
Abstract: Cycloolefin copolymers for technical applications except for using in optical data storage devices can be produced by (co)polymerising monomers from the group of cyclic olefins, of .alpha.-olefins with 2 or more C atoms and conjugated or unconjugated diolefins (optional) where metallocene compounds or .pi.-complex compounds of formula (I) or (XIII) are used as catalysts in which CpI and CpII represent carbanions with a structure containing cyclopentadienyl, .pi.I and .pi.II represent charged or electrically neutral .pi.-systems, D represents a donator atom and A an acceptor atoms, wherein D  and A are joined by a reversible coordinate bond such that the donator group adopts a positive (partial) charge and the acceptor group a negative (partial) charge, M stands for a transition metal of the IIIrd, IVth, Vth or Vith subgroup of the periodic table of elements including lanthanides and actinoides, X stands for an anion equivalent and n, depending on the charge of M, is 0, 1, 2, 3 or 4.
Patent CA-2260691-A1 (CA)
Inventor: SKEATS ANTHONY JAMES
IPC: F16B9/00
Filed: 1999-02-02
Abstract: A bracket is disclosed for mounting one object on another. The bracket has two pivotally joined links, one for receiving said one object. Each link is pivotally joined to a respective fixing member for fixing to the other object. The pivotal joints have parallel pivotal axes so that the distance at which the fixing members are spaced, when fixed to the other object determines the angular orientation of said one object relative to the other.
Patent CA-2261763-A1 (CA)
Inventor: HILL IRA D
IPC: A46B9/04
Filed: 1997-07-24
Abstract: A toothbrush having a plurality of bristles (12) of synthetic thermoplastic polymeric composition. The bristles (12) having a plurality of channels (13) therein extending along the length thereof. The channels (13) having a depth sufficient to entrap a quantity of toothpaste abrasive, wherein the cleaning and abrasion contact between the quantity of abrasive entrapped in the channels (13) and the surfaces of the teeth is improved during brushing.
Patent CA-2262289-A1 (CA)
Inventor: O'SHEA TOM
IPC: F23D14/10
Filed: 1999-02-19
Abstract: A low pressure gas burner has a mixing chamber portion mounted to a vapour gas chamber portion. The mixing chamber portion has six individual mixing chamber barrels fixed together in a closed circular fashion, although it may have more than six hollow barrels or as few as one barrel, depending on the amount of maximum heat output for which the burner is being designed. Gas entering through an inlet is distributed about the gas chamber and then exits through a gas orifice into the open end of a respective mixing chamber barrel. As the gas moves from the orifice into the barrel a venturi effect draws fresh into the barrel. The gas and air mix in the barrel and exit at the far end past a flame retainer to be burned. It has been found that this burner functions acceptably with gas pressures as low as .5 to 8 psi, be it natural gas or other types of combustible gases. Hence, because the burner is capable of such low pressure operation, a user has the ability to choose from a wider variety of gas supplies than with prior art burners, and should therefore be able to pick a lower cost gas to reduce the burner's energy or operating costs.
Patent CA-2268104-A1 (CA)
Title: Method of obtaining improved geophysical information about earth formations
Inventor: REIMERS NILS
IPC: E21B47/06
Filed: 1997-10-09
Abstract: The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at one or more frequencies within a range of frequencies at a plurality of spaced locations. A plurality of substantially serially spaced receivers in the wellbores and/or at surface receive signals reflected by the subsurface formations. The sensors may be permanently installed in the boreholes and could be fiber optic devices. The receiver signals are processed by conventional geophysical processing methods to obtain information about the subsurface formations. This information is utilized to update any prior seismographs to obtain higher resolution seismographs. The improved seismographs are then used to determine the profiles of the production wellbores to be drilled. Borehole seismic imaging may then be used to further improve the seismographs and to plan future wellbores. Cross-well tomography may be utilized to further update the seismographs to manage the reservoirs. The permanently installed sensors may also be used to monitor the progress of fracturing in nearby wells and thereby provide the necessary information for controlling fracturing operations.
Patent CA-2268191-A1 (CA)
Title: Methods and apparatus for performing digital image and video segmentation and compression using 3-d depth information
Inventor: ELEFTHERIADIS ALEXANDROS
IPC: G06T9/00
Filed: 1997-10-09
Abstract: Apparatus and methods for identifying one or more separate objects within depth information which corresponds to a field or a frame of video information are disclosed. In a preferred embodiment, an apparatus includes an object map generation circuit (500) for receiving depth information and for converting depth information into an object map to associate each pixel within the frame of video information with one of one or more regions of varying perceptual importance. This preferred apparatus also includes a region masking circuit for masking the object map to generate one or more depth region masks indicative of pixels within the frame which substantially correspond to preselected regions of depth, a CBR encoder (400), and a video object selection circuit for identifying one or more separate objects within each of the one or more preselected regions indicated by each of the one or more region masks, such that each object associated with each depth region is identified as a separate object.
Patent CA-2269001-A1 (CA)
Title: Controller for a door operator
Inventor: CRIMMINS TERENCE E
IPC: E05F15/16
Filed: 1999-04-13
Abstract: A controller for controlling a motor and other functions in a commercial door or barrier operator is described. The controller includes a unique motor start circuit for starting an AC motor which employs two dual--pole-dual-throw (DPDT) relays for activating the start coil in combination with a single triac for activating the main coil of the motor, eliminating dV/dt sensitivity. A motor start control for a door or barrier operator includes a speed governor integrated onto the controller for detecting when to shut off AC power to the start coil in a single phase motor. The integrated speed governor uses an RPM sensor for detecting the speed of the operator's limit shaft coupled to software run by the processor. Switches for operating open, close, stop and learn functions are located on the controller to facilitate installation, maintenance and programming by a service provider at the door operator. In addition, a cycle counter provides a warning when the number of barrier movements equals a predetermined, programmable number of movements.
Patent CA-2270313-A1 (CA)
Title: An apparatus for stretching bread dough and the like
Inventor: MORIKAWA MICHIO
IPC: A21C1/08
Filed: 1999-04-27
Abstract: An apparatus is provided for stretching bread dough and the like comprising a rotating member that includes a plurality of planetary rollers that revolve along a circular orbit, a conveying device provided below said rotating member such that a first gap is provided, said first gap gradually decreasing from an inlet to an outlet for the bread dough, said conveying device including a plurality of rollers adapted so that the speed at which each roller rotates gradually increases from said inlet to the outlet for bread dough, and an arcuate plate provided below the rotating member and downstream of the plurality of rollers such that a second gap in which the bread dough is pressed by the plurality of rollers.
Patent CA-2271191-A1 (CA)
Title: Power feed circuit providing both on-hook and off-hook power for telephone subscriber loop
Inventor: ORTEL WILLIAM C G
IPC: H04M19/00
Filed: 1999-05-06
Abstract: A power feed circuit provides power for a telephone subscriber loop connected to a unit of terminal equipment. The power feed circuit includes a first current supply circuit for supplying power to the subscriber loop when the unit of terminal equipment is in an on-hook condition and when the unit of terminal equipment is in an off-hook condition, and a second current supply circuit for supplying power to the subscriber loop only when the unit of terminal equipment is in the off-hook condition. Each current supply circuit includes a respective battery, transistor and bias network. The first current supply circuit is connected to the subscriber loop via a diode which is reverse-biased when the unit of terminal equipment is in the on-hook condition. The power feed circuit may be usefully applied in an Optical Network Unit (ONU) of a"fiber-in-the- loop" telephone system or in a Subscriber-Cable Interface Unit (SCIU) of a cable telephony system.
Patent CA-2273175-A1 (CA)
Inventor: KUEHNLE ANDREAS
IPC: B60C23/04
Filed: 1997-07-18
Abstract: A method for processing signals of a tire pressure monitoring system on vehicles on each of whose N wheels (R1 through R5) a transmitter is mounted and a reception antenna (1 through 5) which is connected to the input of a common receiver (8) is allocated to each transmitter in its vicinity, the transmitters transmitting, at time intervals, data telegrams which contain an individual identifier and a data portion following the latter. The signals received simultaneously from the reception antennas (1 through 5) and having the same identifier are conveyed in summed fashion to the receiver (8), alternately from all N reception antennas (1 through 5) and from N-1 reception antennas (1, 2, 4, 5), such that the one reception antenna (3) whose signal is blanked out of the sum of the signals is selected by cyclical transposition from the total number N of reception antennas (1 through 5). Then the intensity of the summed signals is determined, the intensity of the sums of N-1 signals is compared in each case to the intensity of the sum of N signals, and an identification is made of that reception antenna (3) from which the signal has come whose blanking from the signal sum brings about the greatest intensity loss (D1 through D5). Lastly, the signal having the relevant individual identifier is allocated to that reception antenna (3) and to the wheel (R3) allocated to it.
Patent CA-2276885-A1 (CA)
Inventor: STEMMLER CHRISTOPH
IPC: H01L23/473
Filed: 1999-07-02
Abstract: In a semiconductor clamped stack, in particular for high-power converters, a plurality of power semiconductor components are arranged alternately together with water-cooled cooling cans in a stack. A clear arrangement of all the components and supplies is achieved, and defective semiconductor components can be replaced more easily, in that a molding (10) according to the invention is used for holding in each case one heat sink and one power semiconductor component. Rails and latching-in fasteners are provided for guiding and holding the latter.
Patent CA-2278844-A1 (CA)
Title: Downhole clutch with flow ports
Inventor: VAN BUREN MARKUS ANTONIUS
IPC: E21B17/05
Filed: 1998-02-24
Abstract: A drill string tool (1) for use in a wellbore formed in an earth formation is provided. The tool comprises a first element (1A) connectable to an upper drill string part (3) a second element (5) connectable to a lower drill string part (7) bearing means (11) allowing rotation of the first element relative to the second element about the longitudinal axis (9) of the drill string, and rotation transfer means (15) for transferring rotation of the first element about the longitudinal axis to the second element. Furthermore there is provided control means (28) for selectively disengaging said rotation transfer means so as to selectively allow the first element to rotate relative to the second element by virtue of said bearing means.
Patent CA-2279766-A1 (CA)
Title: Aeration system for submerged membrane module
Inventor: JANSON ARNOLD
IPC: B01F33/40
Filed: 1999-07-30
Abstract: An aeration system for a submerged membrane module has one or more groups of aerators that are controlled to produce aeration which varies in short cycles. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes. The aerators are periodically flooded to avoid fouling.
Patent CA-2282361-A1 (CA)
Inventor: GUBERT SANTIAGO
IPC: C01F7/785
Filed: 1998-12-29
Abstract: The present invention relates to a new basic aluminum magnesium carbonate of the formula (I): Al2Mg4(OH)12CO3.3H2O and rhombohedral crystallization, whose reticular parameters are a=b=3,046 .ANG.; c=22.79 .ANG.; .alpha.=.beta.=90~; .gamma.=120~ and cell volume = 183 A3, whose X-ray diffraction spectrum shows the following d(.ANG.) values: 7.597; 3.798; 2.6202; 2.5698; 2.5322; 2.2830; 1.93545; 1.72447; 1.62930; 1.52289; 1.49318; 1.46002; 1.41351; 1.38528 and 1.31011; whose infrared spectrum shows characteristic bands at 1361 and 449 cm1 (Figure 1) and whose differential scanning calorimetry (DSC) is illustrated in Figure 2. This compound is used in therapeutics as an antacid and gastroprotector.
Patent CA-2284617-A1 (CA)
Title: Fibre-reinforced composite ceramics and method of producing the same
Inventor: STOEVER HEIKE
IPC: F16D69/02
Filed: 1998-02-24
Abstract: The invention concerns fibre-reinforced composite ceramics with high-temperature fibres, in particular based on Si/C/B/N, which are bound in terms of reaction to an Si-based matrix. These composite ceramics are produced by impregnating bundles of fibrous material comprising Si/C/B/N fibres with a binder which is suitable for pyrolysis and solidifying the binder, the fibrous material bundles then optionally being conditioned with a silicating protective layer suitable for pyrolysis, such as for example phenolic resin or polycarbosilane. Subsequently a mixture of fibrous material bundles, fillers, such as for example SiC and carbon in the form of graphite or carbon black, and binders is produced. The mixture is then compacted to form a green compact which is then pyrolysed under vacuum or protective gas in order to produce a porous shaped body which is then infiltrated, preferably under vacuum, with molten silicon. In this way, fibre-reinforced composite ceramics which have greatly improved properties with respect to conventional composite ceramics and are in particular suitable for use in heavy-duty braking systems can be produced in an efficient manner suitable for production on an industrial scale.
Patent CA-2288856-A1 (CA)
Title: Method and device in paper web transfer
Inventor: KOIVUKUNNAS PEKKA
IPC: D21G9/00
Filed: 1998-05-25
Abstract: The invention relates to a method in threading of a paper web, in which a tail (T) separated from the edge of the paper web is transferred with threading guiding means arranged in connection with the mobile parts of a paper machine. Before introducing the tail to the guiding means, it is folded by turning it at a line (L) extending in the longitudinal direction of the tail (T), wherein the thickness of the tail is increased. The invention also relates to a method for strengthening the edge of a full-width paper web. The edge of the paper web is folded over an area of a predetermined width, wherein the thickness of the edge increases.
Patent CA-2293030-A1 (CA)
Title: Managing multicasting in a network
Inventor: HEIN TRAVIS
IPC: H04L12/18
Filed: 1999-12-20
Abstract: A method on managing a multicasting network includes constraining traffic to the path through the rendezvous point. Multicast sources are required to send a request to a multicast administrator for permission to stream data on the network. Once permission is granted the multicast administrator applies a permit filter to the rendezvous point. The permit filter allows the traffic from the requesting source to pass along the path to the receivers. The permit filter includes parameters such as start time and duration for the data steaming to take place. In this manner the multicasting administrator is able to maintain the network in a state of readiness for multicasting, while controlling the sources of such data.
Patent CA-2294556-A1 (CA)
Inventor: MIGNY PHILIPPE
IPC: G09F9/33
Filed: 1999-12-30
Abstract: The invention relates to a message display panel comprising a plurality of light emitting elements arranged in matrix form on a display surface. Each emitter element is constituted by a first end face of an oblong body made of transparent material which comprises on its second end face at least one cylindrical housing in which a light emitting source is placed. The housing comprises a bottom 18 having a convex internal surface which concentrates the light flux received towards the first end face.      The body is square in section and preferably comprises three housings each receiving an electroluminescent diode.
Patent CA-2295666-A1 (CA)
Inventor: LOCHEAD ALISTAIR
IPC: A61P1/04
Filed: 1998-07-07
Abstract: Composé répondant à la formule générale (I) dans laquelle: R¿1? représente un atome d'hydrogène, un groupe (C¿1?-C¿4?)alkyle ou un groupe phenyl (C¿1?-C¿4?)alkyle éventuellement substitué, R¿2? représente un atome d'hydrogène ou un groupe (C¿1?-C¿4?)alkyle, et R¿3?, R¿4? et R¿5? représentent chacun un atome d'hydrogène ou d'halogène ou un groupe trifluorométhyle, cyano, hydroxy, (C¿1?-C¿6?)alkyle ou (C¿1?-C¿6?)alcoxy. Application en thérapeutique.
Patent CA-2297259-A1 (CA)
Inventor: BALL ERIC
IPC: G06F1/035
Filed: 1998-07-03
Abstract: The invention concerns a method and a system for voice transmission of a binary data sequence, the system comprising a master oscillator (OS), a FSK modulator circuit (3) receiving said sequence, an intermediate processing circuit (5) and a piezoelectric transducer (P). A logic excitation signal is applied to the transducer (P) terminals (b1, b2) and is integrated by the transducer (P) impedance capacitive part to reproduce a sinusoidal acoustic signal which is transmitted by the transducer (P) at a different voice frequency according to the logic state of the bit to transmitted.
Patent CA-2299722-A1 (CA)
Title: Transfer of calling party identification in a mobile communication system
Inventor: GRANBERG CHRISTER
IPC: H04M3/42
Filed: 1998-08-07
Abstract: Reliable and comprehensive calling party identification services are provided to mobile subscribers. Calling party identification information, including for example public and private telephone numbers, is sent to a mobile database in a called party mobile network as part of an interrogation procedure for obtaining routing information for routing that call to the mobile subscriber in the PLMN. The mobile database then sends the calling party identification to a mobile switching center where the called mobile station is currently registered and being served as part of that interrogation procedure. The serving mobile switching center stores that calling party identification together with a roaming number allocated for the call. When the call is routed to the serving mobile switching center, the stored calling party identification is forwarded to the mobile unit along with call setup information and is ultimately presented to the mobile unit subscriber.
Patent CA-2300002-A1 (CA)
Title: Exercise apparatus
Inventor: KETTLER HEINZ
IPC: A63B23/02
Filed: 2000-03-03
Abstract: The present invention relates to an exercise apparatus comprising a frame 1 which has supported thereon a hip rest 2 and a leg support 3, characterized in that the hip rest 2 is displaceable from a substantially horizontal into a substantially vertical position.
Patent CA-2300673-A1 (CA)
Inventor: WRIGHT DAVID A
IPC: H04J3/06
Filed: 2000-03-14
Abstract: The present invention provides an uplink frame structure in a satellite communication system, and a method for providing control access to a plurality of user terminals transmitting the inventively structured uplink frames. The uplink frame structure comprises a superframe (200) which includes a predetermined number of individual frames (250). Each individual frame comprises a traffic burst field (202-220) and a control burst field (221-239), where the control burst fields (221-239) may be located at the same position within each frame (250). Each control burst field (221-239) further comprises several individual control time slots (302). The individual control time slots (302) may include, for example, timing probes and orderwire information. 'The present method includes establishing a superframe comprising a predetermine number of individual frames (402), determining a total number of individual control time slots (404), and establishing a control burst field in each of the individual frames (406). The method further includes distributing the control time slots among the individual frames by subdividing each control burst field into several individual control time slots (408), and allocating the individual control time slots to individual user terminals (410). The method may, for example, subdivide each control burst field into an equal number of individual control time slots. The method may further include the step of transmitting a timing probe and/or orderwire information in at least one of the individual control time slots.
Patent CA-2300795-A1 (CA)
Inventor: BONACINA SIMPLICIANO
IPC: B65G17/38
Filed: 2000-03-15
Abstract: A toothed-chain conveyor, particularly of a silent-chain type, comprises chain plates in which at least one of the slots has a longitudinally elongated shape. This enables the conveyor, when appropriately guided, to arrange itself according to plane curves in the planar of the conveyor.
Patent CA-2301130-A1 (CA)
Inventor: MOLNAR JENOE
IPC: B60C27/04
Filed: 1997-10-01
Abstract: The invention relates to a shackle device for show-shackles mounted periodically on tyres of vehicles, which includes a shackle shank and one or more shackle profile connected to the shackle shank, having said shackle shank a contact surface borne at least partly on the shoe of the tyre while the shackle shank has a cogged part serving for the connection to the hub assembly provided with adjusting and fastening mechanism. The characteristic feature of the invention is that a sliding subassembly (3) that allows the shackle profile (5) to displace towards the hub assembly (1) is inserted between the shackle shank (2) and the shackle profile (5).
Patent CA-2302326-A1 (CA)
Inventor: THOMASSEN SIERK MICHAEL
IPC: G01S13/87
Filed: 1998-08-26
Abstract: The invention relates to a method for scheduling radar transmission for multi-face phased array antenna. To prevent crosstalk from one antenna face to another, the various transmissions are synchronized. In this process, a group of requested radar transmissions is scheduled per antenna face in such a way that realizations of these requested transmissions for the various antenna faces have identical PRFs.
Patent CA-2306451-A1 (CA)
Inventor: ERKER JAMES C
IPC: G01N33/576
Filed: 1998-10-15
Abstract: Cette invention se rapporte à des procédés et à des compositions permettant de détecter la présence dans un échantillon d'un virus de l'hépatite E du type US ou du sous-type US, y compris des variants de ce virus existant à l'état naturel. Cette invention se rapporte en particulier à des séquences d'acides nucléiques correspondant au génome du virus de l'hépatite E du type US ou du sous-type US, à des séquences d'acides aminés, y compris des séquences d'épitopes, codées par les génomes de tels virus, et à des anticorps qui se fixent spécifiquement à ces séquences d'acides aminés. Cette invention se rapporte en outre à des procédés et à des compositions servant à immuniser des individus contre l'infection par ce virus ou à traiter des individus déjà infectés par ce virus.