baber/WOPTO huggingface dataset:
Patent CA-2162856-C (CA)
Title: Method of plasma mass analysis with reduced space charge effects
Inventor: TANNER SCOTT D
IPC: H01J49/10
Filed: 1994-05-04
Granted: 2003-12-09
Abstract: A method of analyzing an analyte contained in a plasma, in inductively  coupled plasma mass spectrometry (ICP-MS). A sample of the plasma is drawn through an orifice in a sampler. The sample is then skimmed in a skimmer orifice, and the skimmed sample is directed at supersonic velocity onto a blunt reducer having a small orifice therein, forming a shock wave on the reducer. Gas in the shock wave is sampled through an offset aperture in the reducer into a vacuum chamber containing ion optics and a mass spectrometer.  Because the gas sampled through the skimmer and reducer orifices is substantially neutral (ions and free electrons are in close proximity), and also because the reducer orifice is very small, space charge effects are reduced, thus reducing mass bias and also reducing the mass dependency of matrix effects. Separation of ions from free electrons and focusing of ions into the mass spectrometer largely occurs in and downstream of the ion optics in the vacuum chamber. Since the region between the skimmer and the reducer can operate at about 0.1 Torr, which is the same pressure as that produced by the roughing pump which backs the high vacuum pump for the vacuum chamber, a single common pump can be used for both purposes, thus reducing the hardware needed.
Patent CA-2164541-C (CA)
Inventor: WAGNER MICHAEL J
IPC: B43L13/00
Filed: 1995-12-06
Granted: 1999-12-14
Abstract: A drafting instrument is disclosed that functions as a protractor, compass, T-square and ruler.  The instrument is especially adaptable for use on dry erase boards, chalkboards and tables Apertures disposed in the ruler portion of the instrument accommodate pen tips and facilitate the drawing of arcs, circles and parallel lines.  The preferred embodiment of the instrument is two-piece with a uni-body instrument and a suction cup pivotally attached to the underside thereof.
Patent CA-2167856-C (CA)
Title: Method for producing surface-treated paper and dry end of a paper machine
Inventor: ELIJOKI SEPPO
IPC: D21G9/00
Filed: 1996-01-23
Granted: 1999-09-07
Abstract: A method for producing surface-treated paper, in particular of fine paper, and a dry end of a paper machine that makes use of the method.  A paper web that has been dewatered by pressing is dried in the forward dryer section, in which drying energy is applied to the paper web over the entire length of the forward dryer section asymmetrically in the z-direction from the side of the bottom face of the web.  This step is carried out by a number of successive groups with single-wire draw that are open downward.   In this manner, shrinkage of the web both in the machine direction and in the cross direction is reduced or at least partially prevented, which shrinkage tends to take place when the dry solids content becomes higher.  Paper broke is removed from underneath the drying groups that are open downward substantially by the force of gravity onto the broke conveyor placed underneath.  The paper web which has a tendency of curling because of the asymmetric forward-drying is passed to the finishing section where it is finished while it is moistened and/or worked plastically so that the tendencies of curling that arose in the web in the forward drying stage are substantially reduced.
Patent CA-2172114-C (CA)
Title: New thiophene compounds, process for preparing the same and pharmaceutical compositions containing them
Inventor: WIERZBICKI MICHEL
IPC: C07D333/22
Filed: 1996-03-19
Granted: 2002-04-30
Abstract: 2-Acyl-5-aralkyl-thiophene derivs. of formula (I), their acid-addn. salts and enantiomers are new. X,Y = H, halo, 1-5C alkyl, 1-5C alkoxy or di(1-5C alkyl)amino; n = 2-5; R1, R2 = H or Me; R = H or 1-5C alkyl; R' = 1-5C alkyl; or NRR' = a 5- or 6-membered ring opt. contg. O or an additional N and opt. substd. by 1-5C alkyl or aryl(1-5C)alkyl in which the aryl gp. is opt. substd. by one or more halo, 1-5C alkyl and/or 1-5C alkoxy. 6 Cpds. (I) are specifically claimed e.g.: 5-Ä4-(4-methylphenyl)butylÜ-2-ä3,3-dimethyl-4-ÄN'-(2,3,4- trimethoxybenzyl)-N-piperazinylcarbonylÜbutyryl)ü-thiophene (Ia); and (S)-5-Ä4-(4-methylphenyl)butylÜ-2-ä3-methyl-4-ÄN'-(2,3,4- trimethoxybenzyl)-N-piperazinylcarbonylÜbutyryl)ü-thiophene.
Patent CA-2173200-C (CA)
Title: Improvements in non-spectrophotometric measurement of analyte concentrations and optical properties of objects
Inventor: SODICKSON LESTER
IPC: G01N21/35
Filed: 1994-09-26
Granted: 2003-12-30
Abstract: Improvements in non-invasive detection methods for glucose and other constituents of interest in a sample have been developed. The apparatus and methods of the invention provide an analog of color perception of human vision, preferably in the near infrared region, replacing spectrophotometers and narrow band sources used in other non-invasive near infrared detection methods. A plurality of detector units are used, each covering a broad and overlapping region of the detected spectrum, paralleling color perception and colorimetry. The improvements are primarily concerned with improving the signal-to-background (or noise) ratio such that the data stream is improved. These improvements use congruent sampling, comparison of different data streams from different sample portions or filter sets, using an interrogation system with sufficient speed to allow testing of arterial blood, and using a filter with a spectral structure. In some circumstances, a neural net is used for analysis, allowing the system to learn. A novel method for background discrimination is also described.
Patent CA-2173941-C (CA)
Inventor: BALL WALTER KENNETH
IPC: B32B37/14
Filed: 1994-09-29
Granted: 1999-09-28
Abstract: A method and apparatus for stretching an elastic member in cross machine direction and combining the elastic member, while held in tension, with a moving substrate web. A web of unstretched material, having elasticity across the direction of metering, is fed onto a first rotating drum at a speed slower than the surface speed of the drum. A cutter roll severs a portion of the unstretched material from its leading edge. Vacuum grippers in a drum slot beneath the elastic member support the ends of the member when it is cut from the web. Sealing dies are mounted to the surface of the vacuum grippers below the ends of the elastic member. As the first drum rotates further, the vacuum grippers are cammed axially outward within the slot to stretch the elastic member. Meanwhile, a substrate web is metered onto a second drum which rotates at the same surface speed as the first drum. The second drum rotates against the first drum but in the opposite direction. When the stretched elastic member reaches the nip point between drums, the sealing dies compression bond the ends of the stretched elastic member to the substrate web, using the second drum surface as an anvil surface. Vacuum applied to the second drum maintains the substrate web flat after the stretched elastic member is bonded and released by the vacuum grippers. A secondary sealing operation secures the stretched elastic member to the substrate web in locations other than the ends of the member before the elastic member and substrate web are allowed to contract.
Patent CA-2174070-C (CA)
Inventor: SCHMID STEFFEN
IPC: H01P1/20
Filed: 1996-04-12
Granted: 2002-07-23
Abstract: An acoustooptical wavelength device for wavelength selection comprising one substrate (30) of a birefringent and photoelastic material on which there is formed: a first and a second rotation stages of the polarization plane of an optical signal in a first wavelength interval, wherein each stage comprises at least one optical waveguide (35, 36) travelled over by the signal; at least one optical waveguide, connecting the two stages and carrying one single polarizer consisting of an evanescent-wave polarization coupler (40); at least one optical waveguide carrying one polarizer (37) being finally provided downstream of the second stage.
Patent CA-2177709-C (CA)
Inventor: VARRENG JAN SVERRE
IPC: H02G15/068
Filed: 1995-09-21
Granted: 2001-02-20
Abstract: Système de connexion simplifié pour câbles électriques à haute tension ayant une puissance de 400 kV et plus. Ledit système de connexion de câble ordinaire est destiné à tous les accessoires et à toutes les interconnexions. Le système de connexion de la présente invention comprend une interface généralement utilisable (4, 5, 6; 13, 14, 15; 30, 40), destinée à l'interconnexion avec un certain nombre d'appareils différents, et comporte une terminaison (30) de câble constituée d'un corps élastomère (36), d'un dispositif (34) de relaxation de contraintes intégré dans le corps, d'un écran protecteur (35) de connexion, d'un isolant doté d'une surface (37) conique formant interface et d'un écran (39) externe conducteur, et d'un isolant rigide (41) doté d'une surface (42) conique formant interface correspondant à la surface d'interface (37) de la terminaison (30) de câble.
Patent CA-2178197-C (CA)
Title: Device for processing thermoplastic materials
Inventor: BACHER HELMUT
IPC: B29C48/50
Filed: 1994-12-20
Granted: 1999-08-24
Abstract: A device for plasticising thermoplastic materials has a revolving feed screw for plasticising the plastic materials within a housing. The plastic materials to be plasticised are supplied to the feed screw by a feeding device through a feeding hole in the housing. The housing of the feed screw is provided on its inner wall with at least two broad pockets. These pockets extend in the longitudinal direction of the feed screw and are mutually separated by narrow ribs, when compared to the width of the pocket. One pocket is open towards the feeding hole, the other pockets are sealed against the feeding hole by at least one rib of the housing of the feed screw. In order to improve filling of the feed screw, a feeding device for the plastic materials to be processed is associated with the feed screw. This feeding device stuffs the plastic materials into the feeding hole of the housing of the feed screw with a component of motion normal to the longitudinal axis of the feed screw. The depth of the pocket open towards the feeding hole is at least constant, seen in the direction of rotation of the feed screw. Alternatively or in association therewith, one of the ribs may be adjustable, to allow the feeding capacity of the feed screw to be modified according to the plastic materials to be processed.
Patent CA-2183743-C (CA)
Inventor: SWIFT RONALD ALLEN
IPC: C11D1/14
Filed: 1995-02-24
Granted: 1999-12-28
Abstract: A process for making a detergent composition in form of agglomerates is provided. The process for making a detergent composition comprises the step of adding a paste mixture to a mixer/densifier wherein the paste mixture includes from about 1 % to 50 % by weight of a detersive surfactant system comprising at least about 30 % of a surfated suffactant selected from the group consisting of alkyl sulfates, alkyl ethoxy sulfates, secondary alkyl sulfates and mixtures thereof, and from about 1 % to 50 % of a hydrotrope selected from the group consisting of sulfyl succinates, xylene sulfonates, cumene sulfonates and mixtures thereof. The process also includes the steps of mixing at least about 1 % by weight of a detergency builder into the mixer/densifier, and agglomerating the paste mixture and the builder into detergent agglomerates which are substantially free of phosphates. The anionic surfactants in the detergent composition have significantly improved dissolution in aqueous laundering solutions, especially those kept at cold temperatures, i.e. 5 .degree.C to 30 .degree.C
Patent CA-2185893-C (CA)
Title: Forme galenique pharmaceutique multicouche a liberation controlee
Inventor: KOTWAL PRAMOD M
IPC: A61K9/54
Filed: 1995-03-16
Granted: 2009-05-26
Abstract: L'invention concerne une forme galénique pharmaceutique multicouche à libération contrôlée, en particulier une forme galénique adaptée aux médicaments hydrosolubles. Cette forme galénique comprend une pluralité de particules enrobées dont chacune présente des couches multiples autour d'un noyau renfermant un principe actif. Le noyau renfermant le principe actif et au moins une autre couche de principe actif sont enrobés d'une couche barrière à libération contrôlée. De préférence, une couche extérieure de principe actif supplémentaire est conçue pour une libération immédiate afin de fournir de préférence une couche à libération immédiate et au moins deux couches à libération contrôlée d'un principe actif hydrosoluble à partir d'une particule multicouche enrobée.
Patent CA-2189751-C (CA)
Title: Compositions detergentes antimousse
Inventor: HARTSHORN RICHARD TIMOTHY
IPC: C11D1/12
Filed: 1995-04-18
Granted: 2000-06-27
Abstract: Composition détergente constituée de tensioactifs détersifs usuels, d'adjuvants facultatifs, de compléments détergents et d'un antimousse lequel est un acide aminé de formule (I) ou l'un de ses sels métalliques alcalins ou alcalino-terreux ou leurs mélanges, formule dans laquelle R¿1? est un groupe alkyle, aryle ou alkaryle à 1 à 14 atomes de carbone, R¿2? est un groupe alkylène, arylène ou alcarylène à 1 à 14 atomes de carbone, et R¿5? est H ou un groupe alkyle, aryle ou alcarylène à 1 à 10 atomes de carbone. L'invention porte également sur une composition détergente comprenant un mélange d'antimousses amidoacides et amidoperacides et sur une liqueur de lavage aqueuse comportant un tensioactif détergent faite d'un sulfate d'alkyle C¿10? à C¿20?, associé facultativement à des adjuvants, des compléments détergents et à un composé antimousse formé à partir d'un précurseur.
Patent CA-2197539-C (CA)
Inventor: MARCHIONNI GIUSEPPE
IPC: C07C409/16
Filed: 1997-02-13
Granted: 2005-06-14
Abstract: Tetrafluoroethylene oxidation process at temperatures comprised between -80°C and -40C in the presence of UV radiations and pentafluoropropane as solvent.
Patent CA-2204137-C (CA)
Title: Liquid metal heating and casting ladle
Inventor: REMY ALAIN
IPC: F27D25/00
Filed: 1995-10-30
Granted: 2001-08-07
Abstract: A ladle (1) comprising a main portion (5), an outlet (3) and an inductor assembly (2) fitted onto the main portion. The main portion comprises a cavity (13) defined by a refractory lining, provided with at least one opening (21) and shaped so that no pockets of molten metal remain after pouring.  Consequently, the metal flows more readily, and hot deslagging and metal temperature measurement are made easier. The ladle is useful for maintaining the temperature of high melting point metals such as steel or superalloys for processes requiring metal sampling.
Patent CA-2205720-C (CA)
Inventor: TRAN HIEU VAN
IPC: G11C16/06
Filed: 1997-05-20
Granted: 2002-01-29
Abstract: A linearized storage cell in which in the read mode, the cell is used in the linear region in a negative feedback mode, resulting in a linear variation of cell current with the threshold of the cell.  By imposing the cell current across an equivalent active MOS resistor, a cell read-out voltage linearly dependent on the cell threshold voltage is achieved.  Alternate embodiments are disclosed.    Details of the method are disclosed.
Patent CA-2206386-C (CA)
Inventor: ASAHARA TAKASHI
IPC: H04L27/00
Filed: 1997-05-27
Granted: 2000-05-30
Abstract: A signal from a differential detecting section is decoded by a data decision section and is inputted into a detection area judging section.  In the detection area judging section, synchronous word patterns such as a unique word periodically inserted into the decoded data is detected, determination is made as to in which area the synchronous word pattern was detected,  and in a case where it is judged by the capture determining section that frequency control is executed at an incorrect phase control point, a frequency deviation control section  computes a control rate for a frequency deviation so that a detection area for the received signal will enter an area of a correct phase control point according to a detection area of the received signal, and the frequency deviation is corrected so that control is executed at the correct phase control point by adding a value corresponding to the control rate to an output value from the averaging filter section.
Patent CA-2206538-C (CA)
Title: Process and apparatus for dispensing paper towels
Inventor: DODGE BERNARD E
IPC: A47K10/42
Filed: 1997-05-30
Granted: 2002-02-26
Abstract: A dispenser for individually dispensing paper towels from a stack of interfolded paper towels. The paper towels are received in a housing and dispensed by their ends through a slot in a smooth and generally uninterrupted manner. The slot is formed with a narrow medial portion and enlarged end portions to release only one paper towel at a time. Moreover, the dispenser effectively resists a user pulling a bunch of paper towels from the dispenser.
Patent CA-2207836-C (CA)
Title: Tuyere d'ejection de turboreacteur, a geometrie variable
Inventor: RUIS JEAN-PIERRE
IPC: F02K1/12
Filed: 1997-06-03
Granted: 2003-12-23
Abstract: L'invention concerne une tuyère d'éjection de turboréacteur, à géométrie variable, comprenant trois jeux de volets (6,8,10) axisymétriques, commandés par un seul anneau de commande (12) actionné par des vérins (14). Les volets commandés amont (8) sont reliés à l'anneau de commande (12) par des leviers translatables (14) sur lesquels sont articulés les vérins (1 4). L'anneau de commande (12) est en outre relié aux volets commandés aval (10) par des leviers d'asservissement (20) sur lesquels sont articulés les bielle ttes(24) d'entraînement des volets commandés (6) de la c ouronne extérieure, ces derniers volets (6) étant articulés sur la partie terminale fixe du turboréa cteur.
Patent CA-2212548-C (CA)
Inventor: RUFFOLO ROBERT JR
IPC: A61K31/702
Filed: 1996-02-07
Granted: 1999-08-24
Abstract: L'invention porte sur un traitement faisant appel à un composé de la formule (I) ou à un sel de ce composé acceptable du point de vue pharmacologique, du carvédilol de préférence, seul ou concurremment avec un ou plusieurs autres agents thérapeutiques choisis dans le groupe constitué d'inhibiteurs de l'enzyme convertissant l'angiotensine, de diurétiques et de glucosides cardiotoniques, en vue de réduire la mortalité résultant de l'insuffisance cardiaque congestive chez les mammifères, les humains notamment. Dans cette formule, R¿1? est hydrogène, un alcanoyle inférieur comportant jusqu'à 6 atomes de carbone ou aroyle sélectionné parmi benzoyle et naphtoyle; R¿2? est hydrogène, un alkyle inférieur comportant jusqu'à 6 atomes de carbone ou arylalkyle sélectionné parmi benzyle, phényléthyle et phénylpropyle; R¿3? est hydrogène ou un alkyle inférieur comportant jusqu'à 6 atomes de carbone; R¿4? est hydrogène ou un alkyle inférieur comportant jusqu'à 6 atomes de carbone ou bien, lorsque X représente hydrogène, R¿4? et R¿5? peuvent représenter ensemble -CH¿2?-O-; X représente une liaison de valence, -CH¿2?, oxygène ou soufre; Ar est sélectionné parmi phényle, naphtyle, indanyle et tétrahydronaphtyle; R¿5? et R¿6? sont individuellement sélectionnés parmi hydrogène, fluor, chlore, brome, hydroxyle, alkyle inférieur comportant jusqu'à 6 atomes de carbone, un groupe -CONH¿2?-, alcoxy inférieur comportant jusqu'à 6 atomes de carbone, benzyloxy, alkylthio inférieur comportant jusqu'à 6 atomes de carbone, alkysulfonyle inférieur comportant jusqu'à 6 atomes de carbone et alkylsulfonyle inférieur comportant jusqu'à 6 atomes de carbone ou bien R¿5? et R¿6? représentent ensemble méthylènedioxy.
Patent CA-2213193-C (CA)
Inventor: SCHRADE CHESTER
IPC: H02H9/02
Filed: 1997-08-15
Granted: 2006-10-10
Abstract: A circuit provides instantaneous restriction of current supplied to a load from a power supply to a predetermined maximum current by controlling fluid current through a first transistor using a second transistor responsive to voltage across a resister in series of the first transistor to control flow of a current from the base of the first transistor. The actuation of the first transistor to restrict maximum current causes charging of a capacitor at a predetermined rate to a predetermined threshold voltage at which time a threshold device actuates the second transistor to cause switching off of the first transistor to halt any current flow to the load.
Patent CA-2221167-C (CA)
Title: Reseau de diffraction de guide d'ondes optiques
Inventor: ZERVAS MICHAEL NICKOLAOS
IPC: G02B5/18
Filed: 1996-05-14
Granted: 2006-10-03
Abstract: L'invention concerne un procédé de formation de réseaux de diffraction de guide d'ondes optiques, tels que des réseaux de fibres optiques. Les réseaux sont formés optiquement, un masque de phase étant balayé par un faisceau laser d'exploration afin de générer la configuration des réseaux. Le guide d'ondes et le masque de phase se déplacent l'un par rapport à l'autre au cours du processus d'exploration, faisant varier les caractéristiques du réseau sur sa longueur. Un déplacement relatif dans une direction unique crée une modification du pas du réseau, qui peut être ainsi utilisé pour fabriquer des réseaux modulés en fréquence ou à plusieurs longueurs d'ondes. Un signal de vibration bidirectionnel modifie la robustesse du réseau, qui peut être ainsi utilisé pour fabriquer des réseaux apodisés.
Patent CA-2223334-C (CA)
Title: Process for surface-treated organic pigments
Inventor: BADEJO IBRAHEEM T
IPC: C09B67/20
Filed: 1997-12-03
Granted: 2007-11-27
Abstract: This invention relates to a process for preparing pigment compositions comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a sterically hindered and/or bulky primary amine, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; (b) exposing the suspension to cavitating conditions; and (c) collecting the pigment composition.
Patent CA-2224418-C (CA)
Title: Method for preparing bitumen/polymer compositions and its use for producing a coating
Inventor: PLANCHE JEAN-PASCAL
IPC: C08K3/00
Filed: 1997-05-06
Granted: 2007-07-31
Abstract: These bitumen/polymer compositions are produced by contacting, between 100  DEG C and 230  DEG C under agitation, one bitumen or a mixture of bitumens with at least one olefinic polymer bearing epoxy or COOH groupings, then by incorporating in the product an acid additive while the whole mixture is agitated at a range between 100  DEG C and 230  DEG C for at least 10 minutes. The product, which is subjected to treatment by the acid additive may still contain one or several additional polymers, for instance of the elastomer type cross-linkable with sulphur, and even be subjected to sulphur cross-linking before the said treatment. The said bitumen/polymer compositions are useful, directly or after dilution, to form binders for carrying out surfacing operations.
Patent CA-2227555-C (CA)
Title: Systeme d'aide au deminage
Inventor: SALZBERG RAOUL
IPC: F41H11/12
Filed: 1998-01-19
Granted: 2006-01-10
Abstract: La présente invention concerne un système d'aide au déminage, comprenant : - un ensemble matériel composé de . .cndot. un organe de traitement (10) portable possédant des capacités multimédia, .cndot. un casque (12) à projection par surimpression, .cndot. au moins un capteur de position (13) solidaire du casque, .cndot. une caméra de prise de vues (14), apte à enregistrer les gestes de l'opérateur ; - un ensemble logiciel composé de : .cndot. un logiciel de gestion de la base de données des différentes mines existantes, .cndot. un logiciel de création d' images de synthèse et d'animation, .cndot. un logiciel de retouche d'image, qui permet d'améliorer les images, .cndot. un logiciel de commande vocale.