baber/WOPTO huggingface dataset:
Patent CA-2270134-A1 (CA)
Title: Digital satellite direct broadcast system
Inventor: HARRIS G CHRISTOPHER
IPC: H04L7/04
Filed: 1997-10-31
Abstract: A satellite direct radio broadcast system (10) assemblies bits of broadcast programs into prime rate increments assembled into a frame (100). Frames (100) are divided into symbols which are demultiplexed into a plurality of prime rate channels (110). The prime rate channels (110) are demultiplexed into corresponding broadcast frequencies (21) for transmission to a satellite (25).  An on board demultiplexer (144) separates uplink signals into time division multiplexed streams of symbols (154). A phase shift keying demodulator (146) demodulates the symbols into digital baseband data. The satellite payload switches the symbols into time division multiplexed data streams using two ping-pong buffers (156) and a routing switch (172). The receivers (29) process TDM streams using frame preambles and control channels provided by the satellite (25) and service control headers provided by broadcast stations (23, 24). A management system is provided to manage the satellite (25) and broadcast stations (23, 24).
Patent CA-2270708-A1 (CA)
Title: Mattress cover and method of making same
Inventor: ZYSMAN SIMON
IPC: A47C27/00
Filed: 1999-05-04
Abstract: A mattress cover comprises mattress top and bottom cover layers, a cover side wall in the form of a band extending around perimeters of the cover layers, the side wall incorporating releasable fastener means extending for a substantial portion of its perimeter intermediate its edges for opening and closing the side wall over the substantial portion of its perimeter, the edges of the side wall being secured one to the peripheral edge of the top cover layer and the other to the peripheral edge of the bottom cover layer. Preferably anchoring means for securing the cover to the mattress are provided hidden under the cover side wall. The invention also involves the manufacture of such a cover.
Patent CA-2272111-A1 (CA)
Title: Method and apparatus for winding a material web
Inventor: MOELLER ROLAND
IPC: B65H18/10
Filed: 1999-05-17
Abstract: A winding machine and process for winding a material web onto a reel. The material web is guided around a carrying drum, in which a nip is formed between the carrying drum and the reel. One of the reel and the carrying drum may be cyclically inclined in relation to a travel direction of the material web by a drive device or press device in order to achieve an axial changing of the material web in a winding roll.
Patent CA-2272429-A1 (CA)
Title: Electrical impedance tomography method and electrode arrangement for use therein
Inventor: CHURCH PHILIP MAURICE
IPC: A61B5/053
Filed: 1997-11-25
Abstract: An electrode arrangement for an electrical impedance tomography system comprises a plurality of electrodes (S1-S16) in an array (22) mounted in a support medium (24, 26, 28, 30, 32) for supporting the electrodes adjacent a surface of a volume (12) the electrical conductivity distribution of which is to be measured, for example the thorax or another body pan, a pipeline, the ground, and so on. The electrodes are disposed in two groups, the arrangement being such that, in use, one group (R1-R16) will be closer to the surface than the other group (S1-S16). In operation, each pair of electrodes will be stimulated in turn by applying a known current to them. For each stimulated pair, a resulting potential difference will be recorded at the pair of the remaining electrodes which, if stimulated, would produce an electric field with vectors of the electric field produced by the stimulated pair of electrodes.
Patent CA-2274099-A1 (CA)
Inventor: WARD DAVID RICHARD
IPC: C01B33/193
Filed: 1997-12-01
Abstract: A controlled-pore amorphous silica having a surface area of between 10 m2/g and 900 m2/g, a Macropore Diameter of between 1,000 and 10,000 Angstroms can be prepared under alkaline gel conditions.
Patent CA-2275356-A1 (CA)
Inventor: DARMENTON PATRICK
IPC: A61K8/97
Filed: 1997-12-03
Abstract: The invention concerns the use of flavylium type compounds, non-substituted in position 3, and substituted by at least a hydroxyl or alcoxy radical, in particular Apigenidin, in pure form or in the form of plant extracts containing them, as colouring agent in or for making compositions for dyeing keratinous fibres, particularly human keratinous fibres such as hair. The invention also concerns the dyeing compositions containing them, particularly cosmetic compositions for direct hair dyeing, and the corresponding dyeing method. The hair dyes resulting from the use of these colouring agents are particularly stable to light and washing.
Patent CA-2277335-A1 (CA)
Title: Calage automatique d'affichages video des tubes cathodiques dans des champs magnetiques localises
Inventor: WEBB JAMES R
IPC: H04N9/29
Filed: 1997-12-05
Abstract: L'invention porte sur un système et un procédé de calage dynamique d'images vidéo sur un tube cathodique dans divers champs magnétiques localisés géographiquement. La présente invention met en oeuvre un magnétomètre de tube cathodique qui détecte avec précision les différences d'intensité et de direction d'un champ magnétique localisé dans trois axes tels que les axes x, y et z. Le tube cathodique comprend une carte de commande numérique à processeur et mémoire et capable d'extraire des valeurs numériques des facteurs de corrections et des valeurs numériques de corrections des mesures magnétiques générées par un système vision. La carte de commande numérique reçoit les signaux du magnétomètre de tube cathodique et les utilise avec des valeurs numériques de corrections spécifiques pour définir les valeurs numériques des facteurs de correction de façon à générer des valeurs numériques de facteurs de corrections spécifiques localisées concernant le champ magnétique localisé, détecté. La carte de commande numérique est capable de décoder les valeurs numériques des facteurs de corrections localisées, spécifiques en utilisant la logique de dénumérisation, modulation des impulsions en durée, modulation des impulsions en largeur et des moteurs d'interpolation afin de générer des signaux de correction qui sont utilisés pour régler l'image vidéo et corriger la distorsion magnétiquement induite.
Patent CA-2279529-A1 (CA)
Inventor: CARRASCO MARTINEZ VINCENTE
IPC: G03F5/22
Filed: 1998-02-04
Abstract: Procédé pour l'application de couleurs et de tonalités sur différentes surfaces. L'invention concerne un procédé par lequel l'application de couleurs est menée à bien au moyen d'une sous-division de celles-ci conformément aux pourcentages répartis sur chaque point d'impression. Les pourcentages sont, par exemple, divisés centésimalement, conformément à une norme déterminant la répartition des couleurs de base convenablement superposées, ce qui a pour effet de créer des bichromies et des noirs selon l'ampleur de la soustraction entre la somme des couleurs de base les moins utilisées en termes de pourcentage et la couleur de base la plus utilisée en termes de pourcentage. C'est ainsi que se créent optiquement la totalité des couleurs visibles. Le fond de la surface à imprimer est analysée au préalable et on soustrait la quantité en pourcentage sur chaque point des couleurs de base dans la proportion contenue dans ledit fond. L'application de pigment est effectuée par addition d'un substrat transparent ou d'un médium ou d'un blanc jusqu'à ce que la proportion de chaque couleur soit complète. L'invention est conçue pour les arts graphiques et la reproduction informatique de la couleur.
Patent CA-2279926-A1 (CA)
Title: Structure de soupape pour bruleurs de poeles domestiques a gaz
Inventor: GONZALEZ SOTO ROBERTO
IPC: F23N1/00
Filed: 1998-12-09
Abstract: L'invention concerne une structure de soupape pour brûleurs de poêles domestiques à gaz qui peut être produite par des alliages d'aluminium ou d'aluminium de qualité d'injection au moyen de processus d'injection à pression avec forge finale. Cette structure comprend un corps de soupape et un couvercle présentant des éléments de registre qui assurent un autopositionnement et un assemblage des principaux composants de la soupape. Ainsi, on empêche le désalignement radial et axial des composants et on assure une étanchéité au gaz. La structure comprend en outre un couvercle de soupape qui présente des passages en coopération avec une came de couvercle présentant trois échelons permettant de basculer en une seule opération et de manière sûre entre des positions de flamme maximum et de flamme minimum et une position d'arrêt. La structure comprend aussi un dispositif de commande de flux minimum qui permet la régulation du flux afin que les brûleurs fonctionnent avec un vaste éventail de gaz combustibles.
Patent CA-2281991-A1 (CA)
Inventor: CHASSAGNE FRANCIS
IPC: B21B3/02
Filed: 1999-09-09
Abstract: Manufacturing a thin strip of stainless steel comprises direct solidification of liquid steel in a casting installation comprising two cooled moving walls; solidification is finished when the strip leaves the walls; and hot laminating this strip using a rolling mill with cylinders having a diameter of 400-900 mm, the strip temperature after leaving the rolling mill is 800-1100 degrees C; the rate of reduction of the strip thickness during hot lamination is 15-50 %.
Patent CA-2282822-A1 (CA)
Title: Swivelling device for a downhole rod pump
Inventor: WALKER LLOYD L
IPC: F04D29/64
Filed: 1999-09-20
Abstract: The invention provides a back spin swivelling device for a downhole rod pump, for backing off drive strings which may be under torque. The device of the invention is particularly suited for use with progressive cavity pumps (PCP), and for the release of torque in a drive string through "back spin". The device comprises a housing having an opening at a bottom end adapted to receive a rotatable shaft and having means for attachment to an external support at a top end; said rotatable shaft being partially housed within the housing and projecting from the bottom end of the housing, the shaft having at its bottom end means for attachment to a drive string; and means for mounting the shaft rotatably within the housing. The shaft and the means for attachment to the drive string are substantially symmetrical about their common axis of rotation, and provide no point of articulation between the shaft and the drive string. In a preferred embodiment, the device includes shock absorbing means for damping longitudinal displacements of the shaft. The symmetrical design of the rotating parts and the linear attachment of the shaft to the drive string greatly improve the safety of the device in comparison with rod pulling devices of the prior art, avoiding equipment failure and possible injury due to flying apart of the device under the influence of "wobble" at high angular velocities.
Patent CA-2286140-A1 (CA)
Inventor: POZDNYSHEV GENNADY NIKOLAEVICH
IPC: C09K8/72
Filed: 1998-12-21
Abstract: Surface-active acidic composition for the treatment of bottom hole zone of injection and producing wells to increase permeability and filtration properties of the layer. To increase dissolving and washing of asphalt, gum, paraffin and clay (AGPC) sediments (mud), special ingredients should be added to the mixture of hydrochloric and hydrofluoric acids and non-ionic surfactantsolvent, such as aromatic hydrocarbon solvent (e.g., toluene) or the mix of halogen solvents. During the treatment of the well bottom hole zone such a way influence of acids on clay plugs becomes more effective due to dissolving of hydrophobic AGPC sediments. Presence of nonionic surfactant in this composition, it might be hydroxyethylated alkyl phenol - A.PHI. 9-12) causes better solubility and more uniform (steady) distribution of AGPG solvent in the water-acidic composition as a stable low viscous micro-emulsion oil-in-water type with high peptic and inhibiting properties.
Patent CA-2286681-A1 (CA)
Title: Trisubstituted phenyl derivatives having retinoid agonist, antagonist or inverse agonist type biological activity
Inventor: SONG TAE K
IPC: A61P17/02
Filed: 1998-04-13
Abstract: Compounds of formula (I) where the symbols have the meaning defined in the specification, have retinoid, retinois antagonist or retinoid inverse agonist type biological activity.
Patent CA-2286695-A1 (CA)
Inventor: HEITZ WALTER
IPC: C08F4/70
Filed: 1998-04-07
Abstract: The invention relates to a catalyst and the use thereof in polymerisation. The catalyst contains a compound of general formula (I), wherein R1 stands for a mono or polycylic hydrocarbon, M1+ means an VIIIb group transition metal and X is at least one non-coordinating or low-coordinating anion.
Patent CA-2287406-A1 (CA)
Title: Kink resistant bifurcated prosthesis
Inventor: CHAN RANDY S
IPC: A61F2/07
Filed: 1997-12-09
Abstract: The invention relates to an endoluminal prosthesis adapted for placement at a bifurcation site within the body. The stem or stent-graft may be constructed to have segments of differing structural properties. A section of the stent-graft may be constructed to have a single-lumen tubular stent member covering a multilumen graft member. The stem-graft may comprise at least two modular components adapted for in situ assembly. An extended cylindrical interference fit may be used to seal the modular components.
Patent CA-2289000-A1 (CA)
Inventor: KOELSCH ERIC
IPC: B61C9/50
Filed: 1999-03-01
Abstract: The invention concerns a power puller motor bogie comprising at least a gear motor (6, 10) arranged inside the bogie chassis (4), said gear motor (6, 10) being suspended in said bogie chassis (4) by means of at least two elastic connecting rods (7, 8, 9). Said elastic connecting rods (7, 8, 9) are all supported by said bogie chassis (4). Said elastic connecting rods (7, 8, 9) are such that said suspended gear motor (6, 10) is transversely mobile relative to said vehicle longitudinal direction of movement acts as inertia damper. A shock absorber (12) is fixed between said bogie chassis (4) and said gear motor (6, 10).
Patent CA-2289352-A1 (CA)
Title: Lock having integral status indicators
Inventor: SNOKE STEVEN R
IPC: E05B65/468
Filed: 1999-11-12
Abstract: A key lock for use on a storage device, primarily a tool box, tool chest or workstation, having integral status indicators for giving a visual indication of whether the storage device is in a locked or unlocked condition. The key lock is preferably comprised of a core portion housing the internal workings of the lock mechanism and a shell portion, which surrounds at least a part of the core portion. At least one LED is secured in the shell portion. A face portion is attached to one end of the core portion, and is designed to receive a key. The other end of the core portion is adapted for attachment to other lock system components. The indicators on the key lock provide visual verification of the locked or unlocked status of the storage device, without the need to manually check each compartment.
Patent CA-2294808-A1 (CA)
Title: A laser diode of the type having a buried heterostructure
Inventor: OEHLANDER ULF
IPC: H01S5/227
Filed: 1998-07-03
Abstract: In a semicondutor laser of the BH-type comprising a lateral current blocking structure which is constituted of an n-p-n-p- or n-SI-n-p-sequence of layers (5, 9, 11, 3), located on both sides of a buried active region, one or more thin layers (13, 15) are inserted between the second n-doped layer and the second p-doped layer. The thin, extra layers (11, 13) are p-doped and consist of alternatingly materials having a high bandgap and a low bandgap. These thin layers provide a larger forward voltage drop at moderate high current densities and thereby give a better current confinement in the laser, what in turn gives a higher optical output power and a smaller deviation of the output power/current characteristic thereof from a linear behaviour.
Patent CA-2295200-A1 (CA)
Title: Kinase receptrice, bin1
Inventor: CHORY JOANNE
IPC: C12N15/54
Filed: 1998-06-24
Abstract: L'invention concerne un nouveau récepteur stéroïdien végétal, Bin1, ainsi que des polynucléotides codant Bin1. Le polypeptide Bin1 est utilisé pour accroître le rendement de plantes et/ou la biomasse végétale. L'invention se rapporte également à des plantes génétiquement modifiées caractérisées par un rendement accru ainsi qu'à des procédés permettant de produire de telles plantes.
Patent CA-2295411-A1 (CA)
Title: Electron beam apparatus and image-forming apparatus
Inventor: IWASAKI TATSUYA
IPC: H01J1/308
Filed: 1994-06-22
Abstract: In an electron beam apparatus comprising an enclosure in which an electron-emitting device having an electron-emitting region between opposite electrodes is disposed, the electron-emitting device exhibits such a characteristic as that an emission current is uniquely determined with respect to a device voltage. The interior of the enclosure is maintained under an atmosphere effective to prevent structural changes of the electron-emitting device.      An image-forming apparatus comprises an enclosure in which an electron source and an image-forming member are disposed, the electron source comprising the above electron-emitting device. An emission current is stable with a very small change in the amount of electrons emitted, a sharp image is produced with high contrast, and gradation control is easily carried out.
Patent CA-2297129-A1 (CA)
Title: Method and apparatus for recovery of time skewed data on a parallel bus
Inventor: SALETT RONALD
IPC: G06F13/42
Filed: 1998-07-22
Abstract: An apparatus and method for receiving time skewed data from a parallel data bus. A data transfer on the parallel data bus is preceded by a start-of-cell delimiter consisting of a predetermined sequence of pulses on each of the data signals. The data is received from the bus by receive logic employing a local clock. Sampling logic is used to sample each of the data signals received from the bus at a rate which is higher than the local clock rate. Sample registers store a plurality of samples of corresponding data signals, the number of samples stored being large enough to store at least some of the pulses constituting the start-of cell delimiter. Start-of-cell detect and center select logic is used for determining that a start-of cell delimiter is stored in each of the sample registers, and for determining which of the samples stored in each of the sample registers represents the approximate center sample of one of the pulses of the start-of-cell delimiter. These center samples correspond to the data signals on the bus, but are de-skewed and synchronous with the local clock.
Patent CA-2298469-A1 (CA)
Inventor: CHEN XIN
IPC: C09J7/02
Filed: 1998-08-25
Abstract: La présente invention concerne une couche de décollement imprimable comprenant un copolymère bloc de siloxane résultant de la réaction entre, d'une part (a) un polydiméthylsiloxane exempt de groupes thio, mercapto et fluor, et d'autre part (b) un diisocyanate organique. L'invention concerne également un procédé d'obtention d'un copolymère bloc de siloxane convenant pour une couche de décollement imprimable, ce procédé consistant à faire réagir un polydiméthylsiloxane avec un diisocyanate organique et un allongeur de chaîne.
Patent CA-2301351-A1 (CA)
Inventor: SAUNDERS RICHARD J
IPC: A61F2/06
Filed: 1995-11-27
Abstract: An improved expandable stent for implantation in a body lumen, such as an artery, and an improved method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cut cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements, the elements having a rectangular cross-section from cut-to-cut. The individual radially expandable cylindrical elements are disposed in an undulating pattern. The stent is manufactured by direct laser cutting from a single metal tube using a finely focused laser beam passing through a coaxial gas jet structure to impinge on the working surface of the tube as the linear and rotary velocity of the tube is precisely controlled.
Patent CA-2301928-A1 (CA)
Title: Latex for aggregate treatment
Inventor: SCHULZ GERALD OWEN
IPC: C04B26/26
Filed: 2000-03-21
Abstract: The antistrip characteristics of aggregate in asphalt concrete can be improved by coating the aggregate with certain latices. By doing so, the aggregate is provided with a higher level of resistance to stripping by water. For instance, aggregate can be coated with latex by: (1) mixing the aggregate with latex to form a latex/aggregate mixture; (2) heating the latex/aggregate mixture to a temperature which is within the range of about 66°C to about 232°C; and (3) maintaining the latex/aggregate mixture at said elevated temperature for a time which is sufficient to reduce the moisture content of the latex/aggregate mixture below about 0.7 weight percent and to allow the polymer in the latex to crosslink on the surface of the aggregate. However, the latices used in coating aggregate to improve antistrip characteristics typically have poor stability after being diluted with hard water. Such latices also have a tendency to cream during transportation and storage.      This invention relates to latices having excellent characteristics for coating aggregate which have excellent stability when diluted with hard water and which exhibit a high level of resistance to creaming during transportation and storage. These latices are made by adding 0.1 phr to about 5 phr of a sulfonate surfactant and about 0.1 phr to about 4 phr of a ethylene oxide/propylene oxide triblock polymer to conventional styrene-butadiene rubber latices made with fatty acid soaps.
Patent CA-2304942-A1 (CA)
Title: Label printer/applicator with adjustable, floating print head
Inventor: TASMA GERALD WAYNE
IPC: B41J3/407
Filed: 2000-04-10
Abstract: An improved a label application apparatus comprises a main housing having a print roller mounted thereto for rotation about a print roller axis. A supply reel is mounted to the main housing and has an indefinite length web with label material thereon. A printer including a printer housing and a print head is positioned in abutting relationship to the print roller, the printer housing being mounted to the main housing for pivotal movement about a printer axis. A spring is preferably mounted between the printer and the main housing and biasing the print head against the print roller. An improvement thereto that facilitates more reliable contact between the print head and the print roller comprises a pivot mounting between the print head and the printer housing for mounting the print head for pivotal movement with respect to the printer housing about a print head axis, the print head axis being generally transverse to the printer axis. The print head is thereby adjustable about two axes with respect to the print roller to reduce misalignment between the print head and the print roller.
Patent CA-2306458-A1 (CA)
Title: Manipulation of tocopherol content in transgenic plants
Inventor: TANAKA RYOUICHI
IPC: C12N9/90
Filed: 1998-10-29
Abstract: The invention relates to novel nucleic acid sequences which provide the coding for a geranyl geranyl reductase, to a method for producing novel plants which contain a novel nucleic acid sequence and whose tocopherol and/or chlorophyl content is modified in relation to wild type plants, to these plants and to parts, products and plant cells thereof and to the use of the nucleic acid sequences for influencing the tocopherol, chlorophyl and/or vitamin K1 content of transgenic plants and parts, products and plant cells thereof.