baber/WOPTO huggingface dataset:
Patent CA-2246896-A1 (CA)
Title: Immunoassay utilizing two incubations with labelled antigen
Inventor: GLOVER JUSTIN MARK
IPC: G01N33/569
Filed: 1998-09-08
Abstract: The present invention relates to an immunoassay for antibodies against an infectious agent comprising incubating a sample suspected of containing antibodies with immobilised and free labelled antigen of the infectious agent, separating the immobilised components and incubating them with further free labelled antigen, and determining amount of labelled antigen immobilised. The present invention also relates to the use of the immunoassay and a kit for performing the immunoassay.
Patent CA-2248824-A1 (CA)
Inventor: JOHNSON BEVERLY EARL
IPC: F26B17/32
Filed: 1998-09-29
Abstract: A rotary hearth furnace includes a base having a plurality of first plenums, an upper chamber having a plurality of second plenums and a hearth rotatable between the base and the upper chamber and having a plurality of third plenums.  The hearth is moveable between the base and the upper chamber so that two or more of the third plenums are positionable to receive gas exhausted by one of the first plenums and to discharge the received gas into one of the second plenums.
Patent CA-2249944-A1 (CA)
Title: Combustion chamber to accommodate a split stream of recycled gases
Inventor: THOMPSON STANLEY PAUL
IPC: F26B11/02
Filed: 1998-10-13
Abstract: A combustion chamber is provided that has a vertically oriented body with an inner surface defining an inner combustion area. A burner is disposed adjacent one end of the body so that the flame of the burner when lit will extend into the combustion area. A first annular insert is disposed in the combustion area and generally surrounds the flame of the burner. The annular insert defines a first secondary gas introduction zone for introducing secondary gases into the combustion area so that the secondary gases can be oxidized by the burner flame. The insert has an inner surface presenting at least one opening for allowing fluid communication between the introduction zone and the combustion area. A second annular insert is disposed in the combustion area below the first insert. The second insert defines a secondary gas extraction zone and a second secondary gas introduction zone located below the extraction zone. The gas extraction zone and second secondary gas introduction zone are separated by a divider plate. The gas extraction zone and second secondary gas introduction zone are generally separated by an annular inner wall which has openings therein to allow fluid communication between the combustion area and the extraction zone and second secondary gas introduction zone.
Patent CA-2250256-A1 (CA)
Inventor: WILLIAMS FIONA SUSAN
IPC: C11D3/33
Filed: 1997-03-25
Abstract: There is provided a detergent composition comprising: (a) a detergent component selected from the group consisting of a builder and a surfactant;  and (b) an amino tricarboxylic acid, wherein said amino tricarboxylic acid has rate of dissolution, such that in the T5O test method, described herein, the time taken to achieve 50 % dissolution of amino tricarboxylic acid is less than 100 seconds.
Patent CA-2251468-A1 (CA)
Inventor: YANAGISAWA HIROAKI
IPC: C07C323/62
Filed: 1997-04-01
Abstract: L'invention concerne des dérivés d'acide phénylalkylcarboxylique représentés par la formule générale (I), ainsi que leurs sels et esters pharmacologiquement acceptables. Dans ladite formule (I), R?1¿ représente alkyle etc.; R?2¿ représente alkylène; R?3¿ représente hydrogène, etc.; X représente aryle substitué ou non-substitué etc.; Y représente oxygène etc.; Z représente alkylène, etc.; et W représente alkyle etc.. Ces dérivés, ou leurs sels et esters pharmacologiquement acceptables, peuvent être utilisés pour traiter ou prévenir l'hyperglycémie ou un état pathologique analogue.
Patent CA-2251857-A1 (CA)
Inventor: TATSUNO TOHRU
IPC: C07D471/06
Filed: 1997-03-27
Abstract: A remedy for retinal neuropathy containing a tricyclic nitrogenous compound having an N-methyl-D-aspartate antagonism, such as a compound represented by general formula (1), (2) or (3) or a pharmaceutically acceptable salt thereof.
Patent CA-2252617-A1 (CA)
Title: Methods for delivering compounds into a cell
Inventor: UNGER EVAN C
IPC: C12N15/87
Filed: 1997-04-30
Abstract: The present invention is directed, inter alia, to a method for delivering a compound into a cell comprising administering to the cell the compound to be delivered, an organic halide, and/or a carrier. Ultrasound may also be applied, if desired.
Patent CA-2256337-A1 (CA)
Title: Composant de construction
Inventor: SCHOFIELD FREDERICK ANDREW
IPC: E04D13/158
Filed: 1997-05-30
Abstract: Composant de construction qui comporte une unité de bardage (8, 8') dotée d'une partie surplombante (12) et d'une partie de fixation (10, 10'). La face externe (14A) de la partie surplombante (14A) sert de bordure de rive ou de toit. La face inférieure (14B) de la partie surplombante sert de sous-face. L'unité de bardage (8, 8') possède des parois minces et un profil en forme de S avec trois parois parallèles verticales (14A, 10A, 10B). Deux des parois, à savoir une paroi externe (14A) et la paroi centrale (10A), sont connectées par une plaque inférieure (14B) au niveau de leur bord inférieur et forment le surplomb (12) et deux des parois, à savoir la paroi centrale (10A) et la seconde paroi externe (10B), sont connectées par une plaque supérieure (11) au niveau de leur bord supérieur et forment la partie de fixation (10, 10')
Patent CA-2257350-A1 (CA)
Title: Recepteur de signaux de satellites avec controle d'integrite de calcul de vitesse
Inventor: ARETHENS JEAN-PIERRE
IPC: G01S1/00
Filed: 1997-06-03
Abstract: L'invention concerne les récepteurs de positionnement par satellites. Pour accroître la fiabilité des mesures de vitesse par le récepteur, on propose de mesurer la divergence entre les mesures effectuées sur n axes directeurs de satellites (n>4) et de fournir une alarme si cette divergence dépasse un seuil prédéterminé. La divergence est mesurée par l'écart quadratique moyen entre le vecteur vitesse calculé et les vitesses telles que mesurées le long des axes directeurs et projetées sur le vecteur vitesse calculé.
Patent CA-2259928-A1 (CA)
Inventor: STENHOLM AKE
IPC: B65D79/02
Filed: 1997-07-21
Abstract: The present invention relates to new color compositions which are especially suitable to be used in oxygen indicators. The compositions comprise iron (II), an agent containing pyrogallol entities and an organic acid.
Patent CA-2266595-A1 (CA)
Inventor: SNYDER SHAWN W
IPC: H01M4/20
Filed: 1997-09-15
Abstract: An active paste (14) for a lead-acid electrochemical cell which in a preferred embodiment includes tin; a method of manufacturing the same; and an electrochemical cell utilizing the same. The tin may be a tin sulfate, tin oxide, or metallic tin. The active paste (14) sandwiches a primarily lead film (12) which may, but need not, also include tin, to form a positive electrode (10). One or more positive electrodes (10) are interleafed with a number of negative electrodes (22), separated by a separator material (20). The assembly is placed in a container and electrolyte is introduced. In alternate embodiments, the paste (14) may include some combination of antimony, arsenic, germanium, indium, selenium, gallium, tellurium or other semiconductor materials with or without tin compounds.
Patent CA-2267170-A1 (CA)
Title: Determination of frequency offsets in communication systems
Inventor: SKINNER GORDON S
IPC: H04B7/208
Filed: 1997-09-26
Abstract: A method and apparatus for determining frequency offsets caused by oscillator error or Doppler effects in a user terminal in a communication system. The system (100) includes at least one user terminal (124, 126) and a base station (112), or gateway (120, 122) for communicat-ing through a satellite (116, 118) with predetermined or-bital positions or patterns. A communication signal (500) is precorrected (512) for known Doppler effects, such as between a gateway and a transferring satellite, when used, and transmitted to a user terminal. The user terminal deter-mines the signal frequency relative to a reference oscillator (516, 518), and treats any detected difference as resulting completely from Doppler. The frequency difference is ei-ther transferred as data in reverse link transmissions (524, 526), or used as a pre-correction factor for such transmissions (522, 526). The frequency of the reverse link user terminal signals is measured at the gateway (528), again compensating for knowm Doppler effects, to pro-vide a nominal error measurement (530). Measured fre-quency error or offsets are then divided in half to arrive at a Doppler shift error, or divided in half and scaled to the appropriate frequency to arrive at a user terminal oscilla-tor error (532). The detected error can be transmitted to the user terminal (534) for use in correcting the oscillator output frequency, or for adjusting the timing of, or time tracking for, the user terminal. Alternatively, the detected error can be included as data in subsequent signals for use by gateways or base stations (538, 540).
Patent CA-2267913-A1 (CA)
Title: Sensor apparatus with polarization maintaining fibers
Inventor: NOLAN DANIEL A
IPC: G02B6/00
Filed: 1997-09-25
Abstract: A distributed sensor (10) includes a plurality of stages (24, 28, 32, 36, 40) connected in series, each stage incorporating a length of polarization maintaining fiber (12) exposed to a phenomena such as mechanical deformation or temperature to be sensed. Inter-mode couplers are provided between the sensing fibers (26, 30, 34, 38) of the various stages. The overall transfer function of the device at a plurality of wavelengths is deconvoluted to determine the birefringence of each sensing region and does monitor plural phenomena independently of one another.
Patent CA-2268748-A1 (CA)
Inventor: SWANSON BARBARA
IPC: C12N1/21
Filed: 1998-08-14
Abstract: Alpha-amylase enzymes are disclosed in which one or more of residues corresponding to A210, H405 and T412 in Bacillus licheniformis are mutated. The disclosed alpha-amylase enzymes show altered or improved stability and/or activity profiles.
Patent CA-2269703-A1 (CA)
Inventor: GRANT JAMES JONATHAN
IPC: H02K3/40
Filed: 1999-04-22
Abstract: An end winding (10) of a high voltage air-cooled ac generator or motor is made more resistant to surface deterioration by corona activity by using a paint whose binder contains at least 20% by weight silicone. An end winding, including its insulated conductors and separator and support structures, are coated with the paint whose composition includes a solvent or thinner, optional pigments, and the binder containing at least 20% by weight silicone.      The balance (if any) of the binder can be, for example, an alkyd, acrylic, phenolic or epoxy resin.
Patent CA-2270756-A1 (CA)
Inventor: PALOMBO MOISES BISSU
IPC: A47B3/12
Filed: 1999-05-04
Abstract: A pliable desk, characterized in that it comprises a main structure having three pieces joined to each other all of them made of rectangular panels wherein two of them are vertically arranged and which serve as the desk stands or legs, each one of these pieces is linked by three hinges to a third piece horizontally arranged, said horizontal piece is the frontal portion of the desk. Each vertical piece is provided on its upper edge with two screws placed at each end of the panel width and which will work as "males" and will he joined to the grooves arranged in the same position but on the top of the desk, which is a rectangular panel independent of the main structure having at each of its four ends a groove acting as "female", so that arranged on the top are four grooves in the same position as screws of the desk legs or columns, that is to say, screws are complementary to grooves, thus allowing the main structure and the desk top to be fixedly joined together, and due to the unique shape of grooves, screws are assembled into grooves throughout the circular orifice they have, then being slided into them through the slit after the orifice, thus making the screws to be fastened in grooves by merely sliding desk top frontward.      Furthermore, desk top can be provided in its rear face, with two tracks or slides centrally and perpendicularly arranged one to the other, so that throughout them a box, which in turn is to have two males located each one at each side of said box and which should be inserted into slides or tracks for thus allowing the box to be moved frontward or rearward, can be slided.
Patent CA-2270822-A1 (CA)
Inventor: MELEN BJOERN
IPC: H04L29/06
Filed: 1997-11-06
Abstract: The present invention relates to a system and a method for transfering information. Said system comprises computer netowrks to which one computer or several computers is/are connected to, routers or switches between the computer networks so as to provide communications between the computer networks and user interfaces connected to the computer networks through a router or switch of a connection provider. Each of the computers connected to the networks has an IP address of its own or a similar identification from which it is possible to identify the transmitting and receiving computer. The system comprises further router controller servers having a connection to at least one desired router or switch. The user of the system has an access to various addresses in an address space of the computer network router, the access right being defined in accordance with a table. The user has, during the connection to the router and the router controller server, a right to change at least one or several allowed access right(s) of the address spaced defined by the table. The invention relates further to a system for changing router or switch access rights and to a routing table.
Patent CA-2272029-A1 (CA)
Inventor: DESPAUX VALERIE
IPC: B01D39/16
Filed: 1999-05-13
Abstract: La présente invention a pour objet un filtre réducteur de colmatage pour un système de drainage. Le filtre comprend d'une part, une ouverture de pores suffisante pour présenter une filtration mécanique adéquate et d'autre part, des fibres traitées avec un agent antibactérien pour empêcher les bactéries de s'y accrocher. Ainsi, le filtre selon la présente invention permet de réduire le colmatage biologique dans des sites d'enfouissement de par sa structure et sa composition.
Patent CA-2272133-A1 (CA)
Title: Flexible folding agricultural implement
Inventor: JEFFERY HERBERT
IPC: A01C5/06
Filed: 1999-05-18
Abstract: A flexible folding agricultural implement includes a frame with a number of independent frame sections each supporting a plurality of ground working tools via front and rear ground engaging and depth adjustment wheels.      Each frame section is attached to the adjacent section(s) via front flexible link connectors and rear ball joints.      Each front flexible link connector is a bar pivotably attached at one end to the center point of one frame section, and, at the other end, to a front corner of an adjacent frame section in alignment with the respective rear ball joint and a scissor limit stop is positioned around each bar which scissor limit stops limit the amount of relative twist between adjacent frame sections to prevent roll over and to allow the link connectors to be made rigid such that they can act as pivot supports for the respective frame sections as they are folded for transport.
Patent CA-2273307-A1 (CA)
Title: Sensor for measuring content levels in containers
Inventor: BAKER WILLIAM J
IPC: G01F23/26
Filed: 1999-05-28
Abstract: A container level sensor is disclosed comprising an elongate strip member for mounting in a container in a generally upright orientation. The strip member has a measurable capacitance that changes as the level of material stored in the container changes. Two insulated conductive strips, held apart by magnetic forces or resilient spacers, can be used to form a capacitor, with the force of material in the container against the sensor pushing the strips together and thereby changing the capacitance. This change can be measured by a circuit.
Patent CA-2275213-A1 (CA)
Inventor: FASSINA GIORGIO
IPC: A61K38/08
Filed: 1997-12-11
Abstract: A pharmaceutical composition containing a biologically effective amount of a peptide of the formula (I): (H2 N-X1-Thr-X2-CO)n-R wherein X1 and X2 different from one another, are an amino acid residue of tyrosine and arginine, in L or D configuration, wherein the hydroxy group of threonine and the guanidine moiety of arginine may be protected by a compound conventionally used in peptide chemistry for protecting the hydroxy group and the guanidine moiety, respectively, n is 2, 3, or 4, R is a group capable to form a dimeric, trimeric, and respectively tetrameric peptide, and at least a pharmaceutically acceptable inert ingredient.
Patent CA-2275508-A1 (CA)
Inventor: TABRIZI AHMAD EBADI
IPC: A41B9/02
Filed: 1999-06-18
Abstract: An undergarment (200) designed principally for a male user (214) to provide lifting support and shape enhancement for the buttock and crotch areas (210, 213). A first fabric (202) covers the buttock (210) and crotch areas (213) of a user (214). A second fabric (203) extends downwardly from the back and central area of the waistband (201) of the undergarment (200) to support and encircle the buttocks (210) and thence returns to the waistband (201) at the sides of the undergarment (200). A third fabric material (212) extends downwardly from both sides of the waistband (201) and encircles the crotch (213) to provide support and enhancement of the crotch area (213). The second and third fabrics (203, 212) are elasticized. The first material (202) is a cotton/lycra stretch fabric.
Patent CA-2275893-A1 (CA)
Title: Low false alarm rate video security system using object classification
Inventor: WALDMAN GARY S
IPC: H04N7/18
Filed: 1997-12-23
Abstract: A video detection system (10) and method detects an intruder from video images of a scene.      The method employs a recognition process to differentiate between humans and animals. The method is used only after possible false alarms resulting from identified effects of noise, aliasing, non-intruder motion occuring within the scene, and effects of global or local lighting changes. The object recognition process includes determining the regions containing a potential intruder, outlining and growing those regions to encompass all of potential intruders, determining a set of shape features from the region and eliminating possible shadow effects, normalizing the set, and comparing the normalized set with sets of features of humans and animals. This comparison produces a confidence level indicating a human intruder. An alarm is given for a sufficiently high confidence level. The possibility of a false alarm due to an animal or a non-identifiable object is also substantially eliminated.
Patent CA-2277421-A1 (CA)
Title: Cdma system
Inventor: TEN BRINK STEPHAN
IPC: H04B1/707
Filed: 1999-07-06
Abstract: The invention concerns a CDMA system, including a transmitter and receiver, for use in e.g. a digital wireless communications system and in particular to a method of and apparatus for mapping and demapping CDMA signals. The CDMA system comprises a transmitter and a receiver. The transmitter includes an encoder and a bit interleaver for processing said CDMA signal to be transmitted, a mapper connected in series with the encoder and bit interleaver and means for transmitting said processed CDMA signal. The receiver comprises means for receiving said transmitted CDMA signal, a bit deinterleaver and a decoder for processing said received CDMA  signal and a demapper connected in series with the bit deinterleaver and decoder.  Iterative demapping may be performed in the receiver by passing back the output of the decoder to the demapper. A corresponding method is also disclosed.
Patent CA-2277756-A1 (CA)
Title: Flexible and programmable delta-sigma analog signal converter
Inventor: RAGHAVAN GOPAL
IPC: H03M3/02
Filed: 1999-07-20
Abstract: Processing apparatus (20) that directly samples and quantizes a complex envelope of a bandlimited waveform centered at a predetermined carrier frequency. An oversampling delta-sigma modulator (21) samples and quantizes the input signal to a single bit data stream. A serial-to-parallel converter (22) converts the single bit data stream into a parallel bit stream. A digital decimation filter (23) digitally filters the parallel bit stream to produce an estimate of the baseband in-phase and quadrature components of the input signal. In-phase and quadrature video filters (27, 28) generate in-phase and quadrature samples that are output from the analog signal converter. A controller (26) and a plurality of digital-to-analog converters (25) are used to center noise shaping nulls of the delta-sigma modulator around the carrier frequency. The controller sets the spacing between nulls of the serial-to-parallel converter to maximize the signal-to-noise ratio of the analog signal. The controller controls the decimation filter to set the sample times of thereof to sample the carrier in quadrature so that the coefficients are programmed to foam a bandpass filter at the carrier frequency and programs the coefficients of the video filters to form bandpass filters at the decimated carrier frequency.
Patent CA-2278217-A1 (CA)
Title: Phosphodiesterase 4-inhibiting diazepinoindolones
Inventor: GAUDILLIERE BERNARD
IPC: C07D519/00
Filed: 1998-04-30
Abstract: The present invention presents compounds that inhibit phosphodiesterase 4 having Formula (I). The present invention also provides methods of using the compounds of Formula (I) to prevent or treat asthma, atopic dermatitis, rheumatoid arthritis, inflammatory bowel disorders, pulmonary hypertension, liver injury, bone loss, septic shock, or multiple sclerosis, and to pharmaceutical compositions that contain the compounds of Formula (I).
Patent CA-2280505-A1 (CA)
Inventor: FOULKE RICHARD F
IPC: H01L23/12
Filed: 1998-01-28
Abstract: Un appareil de placement d'un groupe de globules de soudure sur un substrat (10), comprend une plaque de support (18) percée d'un réseau (80) d'orifices (82). Chaque orifice (82) est capable de contenir un globule de soudure (102). Une tête de placement de globules (126), présentant une réseau de broches (108), est alignée avec un motif donné (81) de globules de soudure (102), porté par la plaque de support (18). Le réseau de broches (108) pousse le motif de globules de soudure (102) dans les orifices (82) de la plaque de support (18) de sorte qu'ils viennent sur le substrat (10).
Patent CA-2281278-A1 (CA)
Title: Method for filling voids with aggregate material
Inventor: STEPHENS PATRICK J
IPC: E02D3/12
Filed: 1999-08-31
Abstract: A method for filling a void using an aggregate material, such as mine tailings, the fill material being pumped from a site which is located remote from the void. A fluid, aerated material is formed by mixing the particulate solid material with finished foam. The aerated material may also include cement or another binder for applications requiring structural strength. The bubble structure which results from incorporating the foam constituent in the fill material renders this much more fluid and pumpable, thereby allowing the use of much higher solids-to-water ratios than would otherwise be possible while still being able to pump the material over significant distances. This reduces the possibly of fluidic collapse of the material in the void, and produces other advantages as well.