baber/WOPTO huggingface dataset:
Patent CA-2251919-A1 (CA)
Inventor: IVERSON MARK N
IPC: A61B5/053
Filed: 1997-04-15
Abstract: Concentration of a target chemical, glucose, in the presence of other substances, NaCl, in a specimen (4) is determined by subjecting (2) the specimen (4) to radio frequencies (6, 16) up to about 5 GHz. The real and imaginary components of the reflected and/or transmitted signal are examined (18) to identify the presence and/or concentration of the chemical of interest. The examination includes analysis of the effective complex impedence presented by the specimen (4) and/or the effective phase shift between the transmitted and reflected signals. The effects upon glucose concentration measurements of NaCl can be nulled-out by examining impedence magnitude at a cross-over frequency or measuring NaCl concentration in a first frequency range and subtracting from a combined glucose/NaCl concentration measurement in a second frequency range. This technique can be advantageously used by diabetics to measure blood glucose level.
Patent CA-2253367-A1 (CA)
Title: Angled opto-mechanical connector
Inventor: ENGSTRAND JAN-AKE
IPC: G02B6/38
Filed: 1997-04-25
Abstract: The present invention relates to an angled opto-mechanical connector and to a manufacturing process for the same. The connector comprises a fixture with straight and parallel grooves of two sizes running on the upper side of the fixture from a first fixture side to a second fixture side. A lid is fastened above the fixture. Fibre ends of optical fibres are placed in the capillaries which are formed between the smaller grooves of the fixture and the lid in such a way that they stick out through the side of the fixture. A plastic capsule encloses the fixture, the lid and the fibres completely or partially. The fibres stick out from the plastic capsule in a direction separated from that defined by the grooves of the fixture. The connector can also have an opto-mechanical interface of the above mentioned type at its other end.
Patent CA-2253910-A1 (CA)
Inventor: JONES KEITH
IPC: C07D471/04
Filed: 1997-05-06
Abstract: On décrit de nouvelles pyrazines et un procédé de fabrication de ces dernières selon lequel on fait réagir des pyrazines 5-halo substituées avec un acide arylboronique. Les nouvelles pyrazines peuvent être utilisées dans la synthèse de la coelentérazine.
Patent CA-2254869-A1 (CA)
Title: Crown setting device for a timepiece
Inventor: CHAN KWONG FUNG
IPC: G04B27/02
Filed: 1997-05-16
Abstract: Crown setting device for alarm setting and/or time setting crown(s) (28, 46, 59) in an analog wristwatch uses a rotatable top ring (25, 42, 55) mounted on the watch case, having gear teeth (39, 52, 63) on its underside which mesh with gear teeth (40, 54, 64) on the crown(s) to rotate the crown(s). This serves to set the time and/or alarms with less time and effort than conventional crown setting. Preferably involute gear teeth are used, but a simple version employs the conventional crown knurling as "teeth".
Patent CA-2255792-A1 (CA)
Inventor: SINGH JAI PAL
IPC: A61P9/10
Filed: 1997-05-16
Abstract: L'invention concerne des procédés d'augmentation de la concentration de monoxyde d'azote (NO) dans les cellules de l'endothélium vasculaire, qui consistent à administrer un composé de formule (I), un sel ou un solvate de celui-ci. Dans ladite formule (I), R représente hydrogène, -OH, -O(C¿1?-C¿4?alkyle), -OCO(C¿1?-C¿4?alkyle), ou -OCOAr où Ar représente phényle ou phényle éventuellement substitué; R¿1? représente R, -Cl, ou -F; R¿2? représente 1-pyrrolidinyle, 1-pipéridinyle ou 1-hexaméthylèneimino.
Patent CA-2255910-A1 (CA)
Inventor: STEINBERG MITCHELL IRVIN
IPC: A61K31/4164
Filed: 1997-05-23
Abstract: L'invention porte sur des méthodes de traitement de l'hypertension pulmonaire consistant à administrer à un mammifère qui le nécessite un composé présentant une activité d'antagoniste du récepteur de la tachykinine.
Patent CA-2256409-A1 (CA)
Title: Method and apparatus for providing diversity in hard handoff for a cdma system
Inventor: TIEDEMANN EDWARD G JR
IPC: H04B7/02
Filed: 1997-05-22
Abstract: In a communications network, a network user communicates using a remote unit (125) with another user (30) via at least one base station (B1A). The communications network has a first base station (B1A) having a first coverage area and a second base station (B2A) having a second coverage area. In the situation where communication is not established between the second base station (B2A) and the remote unit (125), in order to provide communication between the remote unit (125) and the first base station (B1A) when the remote unit (125) is in the first coverage and simultaneously in the second coverage area, the first base station (B1A) produces a first active communication signal as intended for the remote unit (125). The first base station transmits the first active communication signal from a first antenna (130). The base station delays the first active communication signal to produce a first delayed active communication signal and transmits it from a second antenna (135) wherein the second antenna (135) is oriented with respect to the first antenna (130) such that the first active communication signal and the first delayed active communication signal fade independently as perceived by the remote unit. The first base station (B1A) may measure a round trip delay of the first active communication signal in order to identify that the remote unit (125) is located within the second coverage area.
Patent CA-2257200-A1 (CA)
Title: Substituted imidazoles having cytokine inhibitory activity
Inventor: CLAREMON DAVID A
IPC: C07D403/14
Filed: 1997-06-06
Abstract: Compounds represented by formula (I) are disclosed. AR represents an aromatic group containing 6-10 atoms; and (a) represents a 4 to 10 membered non-aromatic heterocycle containing at least one N atom, and optionally containing 1-2 additional N atoms and 0-1 O or S atom. A pharmaceutical composition is also included. Methods of treating cancer and cytokine mediated diseases are also included.
Patent CA-2260915-A1 (CA)
Inventor: TAN NIANXIONG
IPC: H03F3/345
Filed: 1997-06-27
Abstract: En technologie CMOS numérique, on ne peut utiliser ni les résistances ni les condensateurs linéaires et il est impossible ou tout simplement malaisé de concevoir des filtres à temps continu en faisant appel aux méthodes classiques. L'idée a donc été émise d'utiliser des miroirs de courant pour effectuer des filtrages dans un convertisseur tension-courant en concevant des filtres à temps continu pour des systèmes de données échantillonnés dans le cadre d'une technologie CMOS numérique. On détermine donc la fréquence d'un pôle au moyen de la transconductance d'un transistor à effet de champ métal-oxyde semi-conducteur (MOS) (6) et de la capacité d'un condensateur (8) mesurée à la grille du transistor. Il est décrit, au titre de cette invention, un procédé général de conception de filtres à temps continu dans le cadre d'une technologie CMOS ainsi que des techniques de cascadage afin de réduire l'étalement des fréquences d'un pôle.
Patent CA-2262650-A1 (CA)
Title: Apparatus and method for processing a sublimed material
Inventor: BLUNDELL NEIL
IPC: F25J1/00
Filed: 1997-08-14
Abstract: Apparatus for the solidification by desublimation of a sublimed gaseous substance and the subsequent trapping and liquidation of said desublimed substance is described, the apparatus comprising: means for the supply of a coolant fluid to a process vessel means; means for the supply of said sublimed substance to said vessel; means for enabling the direct contact and mixing of said coolant fluid with said sublimed substance so as to reduce the temperature of said sublimed substance to below a dewpoint thereof; said vessel means including a lower tank portion into which solid desublimed substance falls; said vessel means further including heating means at least about said tank portion; valve means to enable said vessel means to be sealed to allow a raised pressure to be established in said vessel; conduit means having a first end at the position adjacent a lower end of said tank portion such as to be immersed in liquid resulting from the liquefaction of said desublimed substance, and a second end remote from said first end outside said vessel and connected to means to receive said liquefied substance; and said conduit means having means to permit the controlled expulsion of said liquefied substance.
Patent CA-2266035-A1 (CA)
Inventor: MADIGAN LISA
IPC: C09D125/08
Filed: 1997-09-08
Abstract: Aqueous coating compositions are described where the binder includes an anionically stabilised addition polymerised polymeric dispersion. The monomers used to prepare the dispersion are acrylic acid and methacrylic acid as a carboxylic monomer and styrene, alpha methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer and an alkyl acrylate ester as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy a formula. Blends of high and low Tg dispersions are also described. Paints formulated with the binders exhibit an excellent balance of stain resistance, tint strength and viscosity stability.
Patent CA-2267316-A1 (CA)
Inventor: LONG MICHAEL D
IPC: G06K19/16
Filed: 1997-10-01
Abstract: Apparatus and method for recording diffractive high resolution graphical information is suited to recording information that would be difficult to counterfeit. In one embodiment, light is selectively passed by a shutter (52), and through spatial filter (54) to remove noise. Liquid crystal display (68) or similar display device receives a data stream from computer (20) and displays periodic structure(s), diffracting the incident beam into one or more diffracted beams (59). Lens (78) focuses an image of the macroscopic pattern formed of these periodic structures to a recording material in image plane (80) where diffracting structure(s) caused by the overlap of some or all the diffracting beams and, optionally, the undiffracted beam, is created. Optional mask (76) blocks some or all of the diffracted and undiffracted beams. The recording material is moved and the process repeated with another pattern of periodic structures until the desired macroscopic image is composited.
Patent CA-2267434-A1 (CA)
Inventor: SCHUBART RUEDIGER
IPC: C08G73/10
Filed: 1999-03-29
Abstract: The invention relates to a process for preparing polymers having repeating succinyl units, especially polysuccinimide and polyaspartic acid, with increased M W  values at non-increased, moderate synthesis temperatures and at the same time without increased polycondensation times, using malefic anhydride and ammonium carbonate plus a catalyst.
Patent CA-2267877-A1 (CA)
Title: Means and apparatus for collegial identification of persons such as officials asking for identification
Inventor: MANN STEVE
IPC: A45C1/06
Filed: 1999-04-01
Abstract: A wearable or carryable means and apparatus for the collegial identification of officials is disclosed. Identificational reciprocity is built into the apparatus of the invention so that identification is not inadvertently shown to criminals who might have stolen a security guard's uniform or the like, or, in the event that such criminals may have also stolen a security guard's identification, there is also provided means of biometric informational acquisition so that such criminals have a better chance of getting caught. The invention provides an incidentalist identificational procedure, so that legitimate officials are not offended by a person using the invention who would otherwise be perceived as disrespectful by demanding identification from an official.
Patent CA-2272398-A1 (CA)
Title: Soupapes de derivation integree et groupe turbo-refroidisseur
Inventor: MCAULIFFE CHRISTOPHER
IPC: F24F11/02
Filed: 1997-12-17
Abstract: La présente invention concerne une soupape de dérivation (12, 14, 214) s'utilisant avec un composant de groupe turbo-refroidisseur (10), lequel composant inclut un élément de conditionnement, une entrée et une sortie. Le groupe turbo-refroidisseur (10) inclut une partie (22) accueillant le composant. Cette partie accueillant le composant définit un premier volume et inclut un orifice permettant de recevoir la soupape. La soupape comprend un logement complémentaire de la forme de l'orifice, un orifice d'entrée d'air conçu pour être disposé au voisinage de l'entrée, un orifice de sortie d'air conçu pour être disposé au voisinage de la sortie, et une partie soupape permettant de réguler au moins la température ou la pression de l'air en sortie. Cette régulation se fait en laissant passer le flux d'air de l'orifice d'entrée vers l'orifice de sortie, en évitant l'élément de conditionnement, et en interdisant au flux d'air provenant de l'orifice d'entrée de ressortir par l'orifice de façon à envoyer sensiblement tout l'air dans l'élément de conditionnement. L'élément soupape est sensiblement totalement disposé à l'intérieur du premier volume dans l'orifice. L'invention concerne également un groupe turbo-refroidisseur utilisant cette soupape de dérivation.
Patent CA-2273229-A1 (CA)
Inventor: COTTING ANTON
IPC: A61F2/36
Filed: 1996-11-29
Abstract: The invention relates to a femur component of a hip joint endoprosthesis which has shaft (1) for anchoring in the medullary cavity of the femur. The shaft (1) has a distal section (9) and a proximal section (8), to which is connected a collar section (2) with a peg (3) for receiving an articular head, or with an articular head which is firmly attached to the collar section (2). The shaft (1) comprises a front surface (4), a rear surface (5), a lateral side (6), a medial side (7) and a plane of symmetry (11), whereby longitudinal ribs (10) which stretch from proximal to distal are fitted on the front surface (4) and the rear surface (5) in the proximal section (8) of the shaft (1). The crests (12) of the longitudinal ribs (10) form an angle .delta./2 of at least 1~ to the plane of symmetry (11), and the envelope of the crests (12) of the longitudinal ribs (10) forms a double wedge-like or elliptoide body, which tapers both towards the lateral side (6) and the medial side (7).
Patent CA-2274220-A1 (CA)
Title: Method and apparatus for dynamic allocation of a messaging system resource
Inventor: DORENBOSCH JHEROEN PIETER
IPC: H04L12/56
Filed: 1999-06-11
Abstract: A method and corresponding apparatus for a first controller (106) and implemented in a second controller (110), arranged for providing messaging service to, respectively, a first load (203) and a second load (205), to cooperatively and dynamically allocate a resource (207) between these loads.     The method allocates a first and second default portions (221, 231) of the resource (207), and schedules messages from the first and the second load (203, 205) within these default portions (221, 231). Any unused part (243) of the default portions is reported to the other controller and it schedules messages from its load within the unused part (241), thereby dynamically allocating the resource (207) between the first and second load (203, 205).
Patent CA-2274801-A1 (CA)
Title: Antigenes de surface de cellules mammiferes; reactifs associes
Inventor: GORMAN DANIEL M
IPC: C07K16/24
Filed: 1997-12-12
Abstract: L'invention porte sur des gènes purifiés codant pour un antigène de surface de cellule T de mammifère et sur ses réactifs associés y compris des protéines purifiées, des anticorps spécifiques et des acides nucléiques codant pour cet antigène. L'invention porte également sur des procédés d'utilisation desdits réactifs et de trousses de diagnostics.
Patent CA-2274917-A1 (CA)
Title: Systeme de boulonnage a mise sous tension axiale et procede associe
Inventor: GOSLING MARTIN C
IPC: B25B29/02
Filed: 1997-12-12
Abstract: L'invention porte sur un système de boulonnage servant à maintenir ensemble au moins deux structures et comportant un boulon, un écrou de couplage, un tendeur hydraulique, et un écrou de blocage. Le boulon comporte un corps dont une extrémité est filetée, et l'autre, munie d'une tête. L'écrou de couplage qui se visse sur l'extrémité filetée du boulon présente un ou plusieurs crans pour griffes. Le tendeur hydraulique comporte une cellule hydraulique dont l'extrémité de contact prend sur l'extrémité filetée du boulon. La cellule hydraulique étire le boulon alors qu'un élément de contact du tendeur hydraulique s'engage dans les crans de l'écrou de couplage avec ses griffes complémentaires. L'élément de contact fait tourner l'écrou de couplage tandis que l'extrémité de contact du tendeur hydraulique met le boulon sous tension. L'écrou de blocage se visse sur l'extrémité filetée du boulon.
Patent CA-2278834-A1 (CA)
Inventor: WHITE CARL W
IPC: C01B19/00
Filed: 1999-07-26
Abstract: The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slimes. The method comprises maintaining a molar ratio Ag/Se, Ag/S or Ag/Se+S at a value of about 2 or less in the slimes during leaching thereof in an autoclave. The excess of selenium and/or sulphur allows the formation of Ag2Se or Ag2S, which remains insoluble during autoclave leaching.
Patent CA-2280399-A1 (CA)
Inventor: THOMAS PIERRE-ARMAND
IPC: E21B19/00
Filed: 1999-08-10
Abstract: L'installation d'exploitation d'un gisement en mer comporte une plate-forme semi-submersible (10), au moins une colonne montante (24) reliant la plate-forme (10) au fond marin (F), et des moyens (28, 30) de mise sous tension de ladite colonne montante (24). Les moyens de mise sous tension comportent, pour la ou chaque colonne montante (24), au moins un flotteur (28) immergé, relié en un point de la partie courante de la colonne montante (24) pour sa traction vers la surface, et un mécanisme (30) de traction de la colonne montante (24), lequel mécanisme (30) est installé sur la plate-forme (10) et appliqué en tête de la colonne montante (24).
Patent CA-2282724-A1 (CA)
Title: Wireless telephony system enabling access to pc based functionalities
Inventor: WANG JAMES
IPC: H04M1/72502
Filed: 1998-03-04
Abstract: A system enabling a user wireless access to a variety software functionalities residing within a personal computer is disclosed. The system includes a portable device (15), bus (25) and fixed radio part (20) enabling a user of the portable device access to a variety of software functionalities within a personal computer (40). The portable device generates control commands which are wirelessly transmitted to the fixed radio part. The fixed radio part processes the control commands and provides them to the personal computer via a bus capable of transmitting isochronous signals. An interface associated with the computer is responsive to the control commands and provides the portable device access to the variety of software functionalities in response thereto.
Patent CA-2282781-A1 (CA)
Title: Dynamic reduction of telephone call congestion
Inventor: JALLOUL AMER
IPC: H04B7/005
Filed: 1999-09-17
Abstract: A method, apparatus, article of manufacture, and propagated signal, for setting up a call by receiving a value representing a power level for a cell, adjusting the value representing the power level for the cell based on congestion to produce an adjusted value, and setting up the call based on the adjusted value.
Patent CA-2282985-A1 (CA)
Inventor: FUJITA NOBUO
IPC: F02B43/10
Filed: 1999-09-21
Abstract: A gas compressor and a bypass that bypasses the gas compressor are provided between a hydrogen absorbing tank and a hydrogen gas consumer device such as, for example, a fuel cell. When the hydrogen gas generating pressure is low during an initial period of the hydrogen gas releasing operation of the hydrogen absorbing tank, the gas compressor is operated. When the hydrogen gas generating pressure of the hydrogen absorbing tank becomes sufficiently high due to normalization of the operation of the fuel cell or the like, the gas compressor is stopped, and hydrogen gas is supplied to the fuel cell via the bypass.
Patent CA-2283446-A1 (CA)
Title: Photoactivatable nitrogen-containing bases based on .alpha.-amino alkenes
Inventor: TURNER SEAN COLM
IPC: G03F7/004
Filed: 1998-03-07
Abstract: The invention relates to organic compounds having a molecular weight of less than 1000 comprising at least one structural unit of formula (I), in which R1 is an aromatic or heteroaromatic radical which is capable of absorbing light in the wavelength range from 200 to 650 nm and in doing so brings about cleavage of the adjacent carbon-nitrogen bond. The compounds represent photoinitiators for base-catalysable reactions. Other subjects of the invention are base-polymerizable or cross-linkable compositions comprising compounds having a structural unit of formula (I), a method of implementing photochemically induced, base-catalysed reactions, and the use of the compounds as photoinitiators for base-catalysed reactions.
Patent CA-2283660-A1 (CA)
Inventor: LAVON GARY DEAN
IPC: A61F5/44
Filed: 1998-03-26
Abstract: La présente invention concerne un noyau absorbant conformé destiné à absorber et à retenir les fluides corporels aqueux. Les noyaux absorbants de la présente invention comprennent un panneau avant et un panneau arrière. Les panneaux avant et arrière sont réalisés dans un matériau absorbant les fluides et chacun d'eux possède une extrémité intérieure, une extrémité extérieure et deux côtés. Les extrémités intérieure et extérieure de chaque panneau avant et arrière ont une longueur, l'extrémité intérieure de chacun étant plus courte que l'extrémité extérieure de chacun. Les panneaux avant et arrière peuvent comprendre plusieurs couches de matériau absorbant. Les noyaux absorbants comportent également une partie centrale réalisée dans un matériau absorbant les fluides et possédant une première et une deuxième extrémité. La première extrémité de la partie centrale est en communication fluidique avec le panneau avant étant donné qu'elle chevauche le panneau avant entre les extrémités intérieure et extérieure du panneau avant, et la deuxième extrémité est en communication fluidique avec le panneau arrière étant donné qu'elle chevauche le panneau arrière entre les extrémités intérieure et extérieure du panneau arrière. La présente invention concerne également un procédé de fabrication de noyau absorbant conformé, lequel consiste à: former au moins une bande rectiligne continue de premier matériau absorbant possédant un axe longitudinal et deux bords latéraux définissant une première largeur; à former une bande rectiligne continue d'un deuxième matériau absorbant possédant un axe longitudinal et deux bords latéraux définissant une deuxième largeur plus grande que la première largeur du premier matériau absorbant, bande dont les bords latéraux opposés comportent des échancrures généralement arquées à intervalles le long de la bande de deuxième matériau; à couper transversalement la bande de deuxième matériau absorbant le long d'une ligne qui coupe à intervalles les échancrures opposées généralement arquées pour former des sections présentant des extrémités opposées munies d'échancrures; à placer ensuite les sections de manière que les extrémités munies d'échancrures sont éloignées l'une de l'autre et chevauchent la bande rectiligne continue de premier matériau absorbant, formant de la sorte des couches de matériau absorbant; à couper ensuite les couches de matériau absorbant dans le sens transversal en un point situé entre les extrémités munies d'échancrures.
Patent CA-2284407-A1 (CA)
Title: Axle brake for transaxle
Inventor: DOWEN GORDON C
IPC: F16D65/18
Filed: 1999-09-30
Abstract: A braking system for a small utility vehicle, such as a riding lawn mower or lawn tractor, comprising dual braking mechanisms each mounted on the transaxle of the vehicle proximal to the location at which the axles extend from the transaxle, which stop the vehicle by engaging a pair of brake discs each keyed to a respective one of the axles, where each of the braking mechanisms are actuated by the rotation of an attached brake arm having a cam surface that presses at least one friction puck against each respective brake disc.