baber/WOPTO huggingface dataset:
Patent CA-2308486-A1 (CA)
Title: Absorbent article with fiber optic waste inspection system
Inventor: ROE DONALD CARROLL
IPC: A61F13/15
Filed: 1998-11-09
Abstract: An absorbent article, such as a diaper, having a liquid permeable topsheet, a liquid impervious backsheet joined to the topsheet, an absorbent core located between a portion of the topsheet and the backsheet, and a fiber optic strand having two ends. The first end of the fiber optic strand is disposed in the crotch region of the absorbent article, and the second end is disposed adjacent to the backsheet of the absorbent article.
Patent CA-2308623-A1 (CA)
Title: Method of making monoclonal antibodies using polymorphic transgenic animals
Inventor: REID MARION E
IPC: C12N5/28
Filed: 1997-11-14
Abstract: The invention relates to a method for making monoclonal antibodies having predefined specificity of an epitope characteristic of or unique to a single form of a polymorphic protein. The method includes constructing a first transgenic animal to express a first form of a polymorphic protein encoded by a first allele of a gene encoding the protein; constructing a second transgenic animal to express a second form of the polymorphic protein encoded by a second allele of the gene encoding the protein; and immunizing the first transgenic animal with cells from the second transgenic animal expressing the second form of the polymorphic protein to induce an immune response in the first transgenic animal yielding an antibody specific for an epitope peculiar to the second form of the polymorphic protein. The invention further includes hybridoma cells secreting a monoclonal antibody specific for the second form of the protein. The invention is particularly advantageous in the context of making monoclonal antibodies and derivative reagents specifically identifying polymorphic blood group proteins, such as the Duffy gp-Fy protein.
Patent CA-2310822-A1 (CA)
Title: Ablation treatment of bone metastases
Inventor: RITTMAN WILLIAM J III
IPC: A61B19/00
Filed: 2000-06-07
Abstract: Ablative treatment of metastatic bone tumors and relief of pain associated with metastatic bone tumors is achieved by heat ablation of the bone tumor or tissue near the bone tumor by an ablation probe. In one form the probe is an electrode coupled to a high frequency power supply to provide ablative heating of tissue proximate to an electrode that is placed in or near the bone tumor. Cooling of the electrode by fluid circulation from a cooling apparatus outside the patient's body may be used to enlarge the region of high frequency heating around the electrode.      Image guidance of the electrode placement may be monitored by an imaging device. Tracking of the electrode by an image-guided navigator helps in placement of the electrode with respect to the configuration of the bone and bone metastasis. A set of tools accommodates biopsy and various shapes of electrodes according to clinical requirements. Several forms of electrodes, energy delivery and cooling apparatus and methods accommodate the specific objectives.
Patent CA-2312385-A1 (CA)
Title: Process for producing erythro-3-amino-2-hydroxybutyric acid derivatives
Inventor: YAEGASHI KEISUKE
IPC: C07C255/43
Filed: 2000-06-21
Abstract: The present invention relates to a process for reacting .alpha.~aminoaldehyde derivatives having a sterically bulky amino group which are commercially available with a metal cyanide in the presence of an acid chloride, an acid anhydride or the like to synthesize 3-amino-2-hydroxybutyronitrile derivatives in high yields and high erythro selectivity. When optically active .alpha.~aminoaldehyde derivatives are used, racemization hardly occurs during the reaction, and the desired products are obtained in high optical purity.
Patent CA-2314785-A1 (CA)
Title: Surgical instrument and method for endoscopic tissue dissection
Inventor: KOLATA RONALD J
IPC: A61B17/32
Filed: 2000-08-01
Abstract: A surgical instrument and method is provided for optically penetrating bodily tissue for creating an initial body cavity such as during a vessel harvesting procedure. The surgical instrument comprises an elongated shaft having a longitudinal axis, a proximal end, and a distal end. The surgical instrument further comprises an optical penetrating tip having a cylindrical portion attached to the distal end of the shaft, and a tapered portion extending distally therefrom.  The tapered portion has an apex spaced laterally apart from the longitudinal axis.  In one embodiment of the present invention, a handle is attached to the proximal end of the shaft.
Patent CA-2315145-A1 (CA)
Inventor: BECHTEL JON H
IPC: H04N5/3745
Filed: 1998-12-30
Abstract: A system and method is described for increasing effective integration time of an optical sensor including holding a first signal within each pixel cell, proportional to light integrated by the pixel cell over the previous frame period, generating a second signal within each pixel cell proportional to light integrated by the pixel cell over the current frame period, and summing the first signal and the second signal from each pixel, thereby producing an output signal representing the light integrated by each pixel over two frame periods. If saturation of pixel cells is possible, a further method of extending dynamic range is described including generating and storing a first signal in each pixel cell indicative of light integrated by the pixel cell over a long period, generating a second signal in each pixel cell indicative of light integrated by the pixel cell over a short period, and determining an output for each pixel as the first signal whenever the first signal is less than a threshold value, otherwise determining the output as the second signal.  Also included are double correlated sampling for noise reduction, interlacing for increased integration time, and individual pixel reset for additional gains in dynamic range.
Patent CA-2315869-A1 (CA)
Inventor: MITTRICH MARTIN
IPC: H04B10/64
Filed: 2000-08-14
Abstract: In a communications network with a center and a number of intermediate facilities, optical signals generated at the center are transmitted to the intermediate facilities unmodulated, where they are fed to modulators (M1, M2, M3, M4) to modulate them with information signals to be transmitted. The modulated signals are then transmitted from the intermediate facilities to the center without any separate light sources being necessary in the intermediate facilities.      The unmodulated optical signals contain CW light, for example. Alternatively, they contain carrier frequencies, which are additionally used for optical heterodyne detection. The introduction of WDM permits the transmission rate to be increased both in the downstream channel and the upstream channel and enables different intermediate facilities to transmit different types of information at the same frequencies.
Patent CA-2316180-A1 (CA)
Inventor: WATANABE RYUJI
IPC: C01B33/021
Filed: 1998-12-25
Abstract: It is possible to produce high purity Si by heating solid SiO at a temperature of at least 1000°C and lower than 1730°C, for a disproportionation reaction in which the SiO solid is decomposed to liquid or solid Si and solid SiO2, and the produced Si is separated from the SiO2 and/or SiO. The SiO solid can be obtained by a process whereby a starting mixture of carbon C, silicon Si or ferrosilicon, or a combination thereof, with SiO2 is heated to generate SiO gas-containing gas, and the SiO-containing gas is cooled to produce SiO solid.
Patent CA-2316599-A1 (CA)
Title: A ladle, a ladle heating system and methods of heating the ladle
Inventor: HARA KAZUAKI
IPC: B22D41/12
Filed: 2000-08-23
Abstract: A ladle after teeming for a continuous casting and a subsequent slag discharge is mounted on a ladle truck and then moved by the ladle truck to a tapping station. The ladle on the ladle truck is then stationed over a predetermined stand-by time and is then immediately moved to a tapping position to receive a molten steel from a converter. The ladle is quickly heated during the stand-by time, by a regenerative-type burner system carried by a ladle lid which is attached to the ladle to cover the top opening of the ladle. This allows the tapping temperature of the molten steel to be set to a low level, offering advantages such as a remarkable reduction in the consumption of carbonaceous materials as the temperature controller, as well as extended life of ladle refractories through suppression of thermal attack. At the same time, consumption of fuel gas for heating the ladle by the burner system is reduced to contribute to saving of energy.
Patent CA-2318084-A1 (CA)
Title: Selective organ hypothermia method and apparatus
Inventor: DOBAK JOHN D III
IPC: A61F7/00
Filed: 1999-01-21
Abstract: The present invention is a method, and apparatus for performing hypothermia of a selected body organ without significant effect on surrounding organs or other tissue. A flexible catheter (10) is inserted through the vascular system of a patient to place the distal tip (26) of the catheter in an artery feeding the selected organ. A compressed refrigerant is pumped through the catheter to an expansion element (22) near the distal tip of the catheter, where the refrigerant vaporizes, and expands to cool a flexible heat transfer element (24) in the distal tip of the catheter. The heat transfer element cools the blood flowing through the artery to cool the selected organ, distal to the tip of the catheter.
Patent CA-2318463-A1 (CA)
Inventor: BOND DUKE
IPC: H04Q3/00
Filed: 1999-01-06
Abstract: A resource manager (560) for managing the resources of a virtual bearer channel platform (250). The platform includes transaction processing units TPUs (161-164). Each TPU processes service requests transmitted by a caller or transmits service requests to a destination called party. The platform (250) has a distribution network that interfaces with the TPUs and acts as a shared bus between the TPUs. The platform receives and transmits communications with a communications network over bearer channels of a high bandwidth pipe (215).  A cross-connecting controller (510) multiplexes the signals coming into the platform over the bearer channels onto the distribution network (540), and also demultiplexes signals going out over the bearer channels from the distribution network. The resource manager (560) provides a centralized control for the allocation of bandwidth to the transaction processing units (161-164). It allocates available bearer channels for the connections with the communications network, and also allocates available time slots in the distribution network to the TPUs. The resource manager (560) updates the status of the distribution network in real time, responding to the platform communication needs adaptively.
Patent CA-2318704-A1 (CA)
Inventor: WIEDEMAN ROBERT A
IPC: H04B7/185
Filed: 2000-09-13
Abstract: A method and system for reducing the power consumption of a communication satellite that includes a RF transponder.      The method has steps of (a) operating at least one gateway to derive a historical record of demand for the transponder as a function of time and location within at least a portion of a service area; (b) using the historical record in predicting a future demand for the transponder as a function of time and location within the service area; and (c) varying a bandwidth of an input filter of the transponder in accordance with the predicted future demand so as to reduce an amount of received noise that is amplified by the transponder. The step of varying includes preliminary steps of generating a filter bandwidth programming schedule in accordance with the predicted demand; and then storing the filter bandwidth programming schedule in a memory of the satellite for use in varying the bandwidth of the input filter at predetermined times relative to local times within the service area, and/or relative to predetermined locations relative to the service area. The step of predicting predicts the future demand as a function of individual beams of a multiple beam transponder receive antenna, and the step of varying preferably varies the bandwidth on a beam by beam basis.
Patent CA-2319422-A1 (CA)
Title: Effluent containment assembly
Inventor: BARRY CHRISTOPHER S
IPC: B01D39/16
Filed: 1999-02-05
Abstract: A containment assembly (10) for collecting grease or other effluent that includes a layered composite (12) of effluent filtering and trapping materials in the form of a separation filter (30), a center filter (32), and a barrier layer (34) disposed in a layered manner. The separation filter (30) and center filter (32) desirably comprise a polypropylene material and each have a different porosity. The separation filter (30), center filter (32), and barrier layer (34) may be disposed between a top (36) and bottom (38) spacer layer in a layered manner.  The composite (12) may be received within a frame assembly (14). The effluent containment assembly (10) also may include flashing (16) for deflecting the effluent away from the equipment (18) or other effluent source, an assembly (16) for securing the frame assembly (14) to equipment (18) or other source of effluent at an elevation relative to a roof or other surface to be protected, a pole assembly (100, 102) for holding the composite (12) within the frame assembly (14), and a windbar assembly (200) for holding the composite (12) together during wind conditions.
Patent CA-2322555-A1 (CA)
Title: New nucleotide sequences which code for the pck gene
Inventor: MOECKEL BETTINA
IPC: C12N15/60
Filed: 2000-10-19
Abstract: Isolated polynucleotide from coryneform bacteria, comprising a polynucleotide sequence chosen from the group consisting of a) polynucleotide which is identical to the extent of at least 70 % to a polynucleotide which codes for a polypeptide which comprises the amino acid sequence of SEQ ID No. 2, b) polynucleotide which is identical to the extent of at least 70 % to a polynucleotide which codes for the polypeptide which is expressed by the pck gene contained on vector pKl9mobsacB.DELTA.pck in the deposited E.coli strain DSM 13047, c) polynucleotide which codes for a polypeptide which comprises an amino acid sequence which is identical to the extent of at least 70 % to the amino acid sequence of SEQ ID No. 2, d) polynucleotide which is complementary to the polynucleotides of a), b) or c) and e) polynucleotide comprising at least 15 successive bases of the polynucleotide sequence of a), b), c) or d).
Patent CA-2322596-A1 (CA)
Inventor: REESOR GORDON J
IPC: H04L25/03
Filed: 2000-10-06
Abstract: A decision feedback equalizer is provided which is capable of canceling precursor Inter-Symbol Interference (ISI) even when knowledge of future data is unavailable. A novel DFE algorithm is utilized whereby the detection signal-to-noise ratio (SNR) is increased in two aspects: the precursor contribution is eliminated and the sampling location (relative to the channel response) is positioned at the maximum SNR location. As a result, the loop length for data transmission in a cable can be extended.
Patent CA-2323154-A1 (CA)
Inventor: MULLINS ALBERT AUGUSTUS II
IPC: E21B23/04
Filed: 1999-03-04
Abstract: An actuator apparatus (16) for actuating a downhole well tool (14) according to which a housing (22) extends in the well and a tool (14) to be actuated is disposed in the housing (22). A drive member (44) is connected to the tool for operating the tool, and an actuator system (36) is disposed in the housing and is normally connected to the drive member (44) for driving the drive member (44) and operating the tool (14). In the event the actuator system (36) fails, an additional actuator systemv (51) is disposed in the housing and is adapted to be connected to the drive member (44) for also driving the drive member and operating the tool (14).
Patent CA-2324450-A1 (CA)
Title: Power control device and method for controlling a reverse link common channel in a cdma communication system
Inventor: MOON HI CHAN
IPC: H04W76/02
Filed: 1999-03-23
Abstract: A common power control channel transmission device for a base station in a CDMA communication system is provided having a selector (350) for receiving power control commands to be transmitted to multiple subscribers and multiplexing the received power control commands; and a spreading modulator (372) for spreading an output of the selector by multiplying the output of the selector by a spreading sequence. The common power control channel transmission device can be used to control power of a reverse link common channel. For the power control of the reverse link common channel, the base station receives a signal from a mobile station via the reverse link common channel, and transmits to the mobile station a power control command for controlling a transmission power of the reverse link common channel according to a measured strength of the received signal.
Patent CA-2327054-A1 (CA)
Title: System and method for packaging oriented containers
Inventor: SEYMOUR LONNIE R
IPC: B65B57/02
Filed: 2000-11-29
Abstract: A system and method for packaging oriented containers in a container carrier wherein a plurality of containers are fed into an orientation wheel including one or more chucks. Each chuck engages one end of the container and rotates the container into an oriented position. A transfer belt having a plurality of tactile fingers is operatively connected to the orientation wheel and transfers an oriented container nested within the tactile fingers in a fixed rotational position from the orientation wheel to a packaging machine. In a method of packaging containers according to this invention, multiple containers are positioned within the carrier in one or more rotational positions based upon the desired appearance of the package.
Patent CA-2328748-A1 (CA)
Title: Srs pilot tone interaction and higher order effects in optical performance monitoring
Inventor: SEYDNEJAD SAEID
IPC: H04B10/07
Filed: 2000-12-18
Abstract: The present invention relates to higher order effects in Stimulated Raman Scattering (SRS) error estimation in an optical fiber network, the network characterized in that it comprises the infrastructure required to measure the power levels of all optical channels using a pilot tone monitoring technique, the estimation comprising the steps of determining the multi-channel SRS error value by applying small signal analysis to the solution of the SRS system of differential equations, calculating the SRS  error in a single fiber span for all channels by creating a Dither Transfer Matrix (DTM) and estimating SRS by observing higher order effects within the DTW.
Patent CA-2329534-A1 (CA)
Inventor: KUNZLER JAY F
IPC: G02C7/04
Filed: 1999-04-12
Abstract: L'invention porte sur un procédé d'obtention de lentilles cornéennes absorbant l'UV consistant à charger dans un moule un mélange de monomères comprenant les monomères constitutifs de la lentille et un composé essentiellement non absorbant l'UV, puis à soumettre ledit mélange à une source lumineuse comportant de l'UV pour le faire durcir, former la lentille, et transformer le composé non absorbant l'UV en composé absorbant l'UV.
Patent CA-2331249-A1 (CA)
Title: Glass container forming machine plunger assembly
Inventor: DIFRANK FRANK J
IPC: C03B11/12
Filed: 2001-01-17
Abstract: A plunger assembly (10) for a glass container forming machine of the I.S. type, the plunger assembly having a plunger (12) that is open at one end and is non-threadably secured at its open end to a free end of an annular cylinder rod (14) that operates to reciprocate the plunger relative to a blank mold of the forming machine. A perforated cooling air inlet tube (20) is positioned within the plunger, and the free end of the air inlet tube is held against a free end of an annular extension (22) of the cylinder rod, an opposed end of which is threadably received in the cylinder rod, by a split locking ring (30) an inwardly facing recess (36, 38) of which traps a radially outwardly extending flange (40) of the plunger to axially position the plunger relative to the split ring. The split ring abuts an endless ring (24) and is axially positioned thereagainst by a flange (44, 46) of the split ring that is received in a recess (42) of the extension. Cooling air flows into the cooling air inlet tube through the cylinder rod and the extension and exit from the plunger through apertures (54) in the split ring, an annular cavity (76) in the endless ring, openings (52) in the endless ring, openings (78) in the sleeve, an annulus (18) between the cylinder rod and the sleeve and an annulus (48) at the base of the sleeve.
Patent CA-2331271-A1 (CA)
Title: Air exhaust structure of an upright-type vacuum cleaner
Inventor: KIM NAE-JUNG
IPC: A47L5/12
Filed: 2001-01-17
Abstract: An air exhaust structure of an upright-type vacuum cleaner includes a duct vertically formed in a side of a cleaner body, communicating with a motor driving chamber, a supporting member protruded from an inner wall of the duct to a predetermined height, a filter supported by the supporting member and received in the duct, and a grill hinged to the cleaner body for opening and closing an air discharge opening of the duct. The air exhaust structure of the upright-type vacuum cleaner enables simple fabrication and reduced number of parts and fabrication cost.
Patent CA-2331974-A1 (CA)
Title: Ring binder having actuating lever with cushion member
Inventor: TO CHUN YUEN
IPC: B42F13/26
Filed: 2001-01-19
Abstract: A ring binder includes a substantially rigid curved upper plate supporting a pair of hinged leaves. A plurality of ring members are secured to the hinged leaves for engaging corresponding holes in sheets of material retained by the ring binder. An actuating lever is located at each end of the curved upper plate for actuating the hinged leaves to open and close the ring members. Each actuating lever includes a tab having a cushion member formed thereon, for example by molding. The tab has an aperture therein, and cushion material enters the aperture during molding to secure the cushion member onto the tab. The cushion member is engaged by the fingers of a user to pivot the actuating lever in order to move the ring members between the open position and the closed position. The cushion member is a soft pad of material such as plastic. The cushion member provides improved tactile characteristics to the actuating lever, making the actuating lever comfortable to use. The cushion member also minimizes the feedback of undesirable shock forces produced by the snap action of the rings when opening and closing the rings.
Patent CA-2334004-A1 (CA)
Title: Backtracked incremental updating
Inventor: SOBEL WILLIAM E
IPC: G06F9/445
Filed: 1999-06-02
Abstract: A computer readable file of an original state is updated to a final state. The original state and the final state are both states within a sequence (100) of states, which sequence (100) includes at least one hub state and one non-hub state. A first hub version, which corresponds to a hub state which is at least as early in the sequence as the original state, is stored locally. A hub incremental update (110) is retrieved (314) and used to update (316) the hub version to a second hub version, which second hub version corresponds to a hub state which is at least as early in the sequence (100) as the final state. A  final incremental update (112) is retrieved (320) and used with the file of the final hub versin to produce (322) a file of the final state. The files corresponding to both the second hub state and the final state are retained (324).
Patent CA-2334558-A1 (CA)
Title: Derives d'acide .alpha.-(1-piperazinyl)acetamido arenecarboxylique utilises comme anti-diabetiques
Inventor: BIERER DONALD D
IPC: C07D/
Filed: 1998-06-08
Abstract: Cette invention a trait à des composés correspondant à la formule générale (I) utilisés dans le traitement du diabète.