baber/WOPTO huggingface dataset:
Patent CA-2248345-C (CA)
Title: Emetteur-recepteur avec ensemble d'antennes adaptables
Inventor: FUKAWA KAZUHIKO
IPC: H01Q1/24
Filed: 1998-06-02
Granted: 2001-08-21
Abstract: L'invention concerne un émetteur-récepteur adaptatif. Les signaux de bande de base reçus à partir d'antennes (111 à 11Q) sont multipliés par des coefficients de pondération pour réaliser une synthèse linéaire. Les signaux d'évaluation sont déphasés par un symbole et multipliés par des constantes de filtre à rétroaction (Wb*) pour produire une interférence intersymbole; cette interférence intersymbole est soustraite du signal de sortie (y(i)) à synthèse linéaire, et le signal de sortie résultant est soumis à une évaluation de signe, puis émis; un signal d'erreur (e(i)) représentant la différence entre le signal d'entrée d'une unité d'évaluation (17) et le signal d'évaluation est produit, et une section d'estimation de paramètres (71) estime les coefficients de pondération (W1* à WQ*) et le coefficient de filtre à rétroaction (Wb*) de sorte que le carré du signal d'erreur (e (i)) soit réduit. Côté émission, le signal de transmission est déphasé par un T et multiplié par Wb*, et l'interférence intersymbole est soustraite du signal de transmission pour produire une distorsion du signal. Les signaux de sortie résultant sont multipliés par W1* à WQ*, respectivement, pour produire des signaux de bande de base de transmission à destination des antennes (111 à 11Q).
Patent CA-2249852-C (CA)
Title: Scroll-type fluid machine including float-protecting pin having partially-cut head
Inventor: WATANABE KAZUHIDE
IPC: F04C29/00
Filed: 1998-10-08
Granted: 2002-06-25
Abstract: Disclosed is a scroll-type fluid machine comprising a fixed scroll and a revolving scroll, each scroll comprising an end plate on which a spiral lap is mounted, wherein the scrolls are eccentrically engaged in a manner such that both spiral laps are engaged with each other, and such that phases of the scrolls are different from each other, a boss provided in and projecting from a central area in a surface of the end plate of the revolving scroll, the surface being opposite to the surface on which the spiral lap is mounted, and a drive bush freely rotatably inserted into the boss. The scroll-type fluid machine also comprises a rotational shaft rotationally coupled with the revolving scroll via a revolving-radius variable mechanism which includes the boss and the drive bush, a balance weight, having an upper face, attached to the drive bush, and a float-protecting pin having a head with a back face, a part of the back face of the head of the pin being in contact with the upper face of the balance weight, the shaft of the pin freely rotatably passing through a hole provided in the balance weight, and an end part of the pin shaft being fixed to a larger-diameter portion at one end of the rotational shaft, the larger-diameter portion being at the drive bush side, wherein a part of the head of the float-protecting pin, the part being at the side of the drive bush, is cut.  Accordingly, the attachment position of the pin can he closer to the drive bush side, the size of the structure in an area neighboring the pin can be reduced, and the diameter of the shaft of the pin can become larger so as to strengthen the shaft.
Patent CA-2252235-C (CA)
Inventor: KURELEK JOHN
IPC: A01G23/081
Filed: 1998-10-28
Granted: 2002-07-09
Abstract: The felling and accumulating head has a large accumulation or storage area for severed trees, separate from the severance area at the front of the head, obtained by elevating the accumulation area to extend preferably at least over the rim of the saw disc, and preferably outwardly and rearwardly over the teeth of the saw. Trees are swept from the severance area, up a small ramp into the accumulation area, by arms which preferably sweep over the saw motor so as to be able to sweep trees a substantial distance rearwardly, i.e. at least beyond an imaginary lateral line through the saw axis.
Patent CA-2253725-C (CA)
Inventor: SCHWELLENBACH JOACHIM
IPC: B22D11/04
Filed: 1998-12-04
Granted: 2008-02-12
Abstract: A continuous-casting mold having two broad-side walls carrying the mold-forming plates which are preferably of copper and clamp the narrow side wall members between them. The entire assembly is received in an outer frame which is shape stable and hence rigid so as to take up all forces which arise in adjustment of the plates as clamping forces and as thermal forces from, for example, thermal expansion of the mold members.
Patent CA-2258617-C (CA)
Title: Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties
Inventor: BARKSBY NIGEL
IPC: C08G18/12
Filed: 1997-07-12
Granted: 2006-10-31
Abstract: Elastomers with improved physical properties, particularly hardness and rebound, may be prepared by the diamine chain extension or moisture cure of low isocynate group content, toluene diisocyanate-based prepolymers prepared from a polyol component comprising a high molecular weight, low unsaturation polyoxypropylene diol and a low molecular weight diol. The elastomers are useful for applications such as rollers and other applications where hardness and rebound are important.
Patent CA-2259954-C (CA)
Inventor: BRIEDEN WALTER
IPC: C12N15/09
Filed: 1997-07-10
Granted: 2012-03-06
Abstract: L'invention concerne de nouveaux microorganismes et un nouvel enzyme aptes à valoriser l'amide d'acide propionique de la formule (VI) sous la forme de racémate ou de son isomère optiquement actif comme unique source d'azote. L'invention concerne également un procédé de production de l'acide (S)- ou (R)-3,3,3-trifluoro-2-hydroxy-2-méthylpropionique de formules (I) et (II) à partir d'ester d'acide trifluoroacétique. Les trois premières étapes sont réalisées par voie chimique et la quatrième par voie microbiologique.
Patent CA-2266460-C (CA)
Title: Hydroconversion process
Inventor: PUTMAN HUGH M
IPC: C10G47/00
Filed: 1997-08-28
Granted: 2006-12-12
Abstract: The hydroconversion of heavy petroliferous stocks boiling mainly above 400 .degree.F is carried out in a distillation column reactor where concurrently a petroleum stream is fed into a feed zone; hydrogen is fed at a point below said feed zone; the petroleum stream is distilled and contacted in the presence of a cracking catalyst prepared in the form of a catalytic distillation structure at total pressure of less than about 300 psig and a hydrogen partial pressure in the range of 1.0 to less than 70 psia and a temperature in the range of 400 to 1000 .degree.F whereby a portion of the petroleum stream is cracked to lighter products boiling below the boiling point of the feed and products are distilled to remove a vaporous overhead stream comprising products mainly boiling below the boiling point of the feed and a liquid bottoms stream.
Patent CA-2266720-C (CA)
Title: Multiple spreading codes in satellite communication systems
Inventor: HABER WILLIAM JOE
IPC: H04L12/56
Filed: 1998-04-28
Granted: 2006-11-14
Abstract: Signal routing from origination nodes (210) to destination nodes (250) in a spread spectrum communication system (100) is provided using spread spectrum routing codes. Origination nodes (210) and destination nodes (250) are identified using specific codes. Signal routes from origination nodes (210) to destination, nodes (250) are determined in terms of multi-level paths. Different codes are used to identify the different path levels. Data that is to be, sent to a particular user located at a destination node is first spread using the destination code for that destination node. This spread spectrum signal is spread a second time using a first level path code. In addition, the data can be spread a third time using a second-level path code. During the transmission of the spread data decoding processes are performed and the decoded data is routed based on the results of these decoding processes.
Patent CA-2272582-C (CA)
Inventor: PATNAIK BIRENDRA K
IPC: A61L27/28
Filed: 1997-11-18
Granted: 2010-01-26
Abstract: L'invention porte sur des compositions bioactives d'enrobage pour substrats de polymères et en particulier sur un enrobage bioactif produit de réaction obtenu: à partir d'un squelette de polymère présentant au moins un groupe isocyanate libre pendant du squelette de polymère, et à partir d'un espaceur hydrophile à terminaison amine présentant au moins un groupe amine à sa première extrémité et à sa deuxième extrémité. L'un des groupes amine de l'espaceur réagit avec un ou plusieurs des groupes isocyanate du squelette de polymère en présence d'un agent catalyseur facultatif. Un agent bioactif se trouve alors lié par covalence à l'extrémité n'ayant pas réagi de l'espaceur en présence d'un catalyseur. L'invention porte également sur des compositions d'enrobage pour substrats et sur leurs procédés de préparation.
Patent CA-2275315-C (CA)
Title: Simulateur de deplacement pour vehicule-jouet a chevaucher
Inventor: LENIHAN GARY G
IPC: A63G19/20
Filed: 1997-12-17
Granted: 2004-11-30
Abstract: Simulateur de déplacement pour véhicule-jouet à chevaucher. Le simulateur comprend une base fixe, une première structure support qui monte depuis la base et supporte au moins une partie du véhicule au-dessus de ladite base, et un dispositif de commande qui se couple avec le véhicule de façon à imprimer à ce dernier un mouvement de va-et-vient horizontal et vertical autour d'une position définie sur le simulateur, ce qui simule le déplacement au sol dudit véhicule.
Patent CA-2277476-C (CA)
Inventor: KERSHAW DAVID IAN
IPC: F16B33/02
Filed: 1998-11-10
Granted: 2009-01-13
Abstract: A screw thread having a threadform comprising a ridge (21) rising from root (23) to crest (26) with the crest having two peaks (27, 28) separated by a through (29) the depth of which is less than the height o f the ridge from root to crest. It has particular use as a screw for timber, and is especially suited to fixing railway rails to sleepers.</S DOAB>
Patent CA-2278282-C (CA)
Inventor: SHAFFER TIMOTHY DANIEL
IPC: C08F4/642
Filed: 1998-02-23
Granted: 2007-07-31
Abstract: L'invention concerne un procédé de préparation de copolymères d'oléfine sensiblement statistiques contenant des monomères d'oléfines disubstitués géminés. Lesdits monomères peuvent être représentés par la formule générique R1=R2(R3)(R4), où R1 est CH2, R2 est C, R3 et R4 sont, indépendamment, des groupes hydrocarbyles sensiblement linéaires contenant de 1 à 30 atomes de carbones, ou d'avantage, et contenant un atome de carbone directement lié à R2. Les copolymères peuvent être préparés en mettant en contact au moins un monomère d'oléfine disubstitué géminé et un ou plusieurs comonomères sélectionnés à partir du groupe contenant de l'éthylène et des  alpha -oléfines C3-C20, avec, éventuellement, un ou plusieurs autres monomères de coordination polymérisables, le système catalyseur de coordination actif contenant un composé catalyseur du groupe 4 bis(arylamido) ponté.
Patent CA-2278398-C (CA)
Title: Horizontal carbon dioxide snow horn with adjustment for desired snow
Inventor: RHOADES GEORGE D
IPC: C01B32/50
Filed: 1999-07-21
Granted: 2003-02-18
Abstract: A method and apparatus is provided herein to produce solid CO2 from liquid CO2 wherein the solid CO2 may be adjusted for level of agglomeration and can be continuously delivered through a snow horn in a horizontal or substantially horizontal orientation.      The invention finds particular use in confined spaces such as between a freezer infeed conveyor and the freezer conveyor.
Patent CA-2281313-C (CA)
Inventor: SATO TAKASHI
IPC: F16B37/12
Filed: 1999-08-31
Granted: 2003-02-25
Abstract: The thread insert of the present invention comprises a helical body having a front end portion (3) and a back end portion (6), and a detachable tongue (4) connected to the front end portion (3) of the helical body, and a pair of engaging notches (10) are formed in the back end portion (6). A female thread (2) is formed on an inner surface of the helical body, a male thread (1) is formed on an outer surface of the helical body. The detachable tongue (4) has a circular portion (3a) having an outer diameter which is smaller than that of the helical body. A cutting notch (11) is formed between the front end portion (3) and the circular portion (3a) on at least one of a surface facing backward and a inner surface of the helical body.
Patent CA-2281369-C (CA)
Title: Fuel cell stack
Inventor: SATO SHUJI
IPC: H01M8/04
Filed: 1999-09-03
Granted: 2003-12-09
Abstract: Disclosed is a fuel cell stack comprising a fuel cell unit and separators which are stacked with each other. The separator is provided with a cooling medium supply port corresponding to a central portion of an electrode power-generating section and a cooling medium discharge port corresponding to an outer circumferential portion of the electrode power-generating section. The cooling medium supply port communicates with the cooling medium discharge port via a cooling medium flow passage having a spiral configuration. Accordingly, the entire fuel cell unit can be uniformly cooled, and the power-generating function can be effectively improved.
Patent CA-2283900-C (CA)
Inventor: ZIMMERMANN JOHN
IPC: B65D5/74
Filed: 1999-09-27
Granted: 2004-09-14
Abstract: A carton blank has a generally half-circular line of perforation extending in the outer top panel and an end panel joined to the outer top panel at a hinge line. The line of perforation has a reduced radius portion which forms a lip in the assembled carton which acts as a closure for the spout. The end panel has an outside free edge not aligned with the main panel top edge so as to expose a portion of the inner top panel thereby allowing for joinder of the inner and outer top panels with fewer glue lines.
Patent CA-2287111-C (CA)
Inventor: SUZUKI MIKIJI
IPC: B23K11/24
Filed: 1999-10-25
Granted: 2007-08-21
Abstract: A resistor welding machine control method for calculating a temperature distribution at a portion to be welded by using changes in welding current and voltage across two welding electrodes during welding and information on sheet combination sequence at a spot-welding position, and for controlling at least the welding current or pressure applied to the electrodes by using the calculated temperature distribution. The present invention can thus provide a resistor welding machine control method capable of controlling welding quality accurately. Spot-welding position information, wear comparison information and the like are available as other information.
Patent CA-2289841-C (CA)
Inventor: MORK STEVEN W
IPC: B29C48/90
Filed: 1998-06-11
Granted: 2006-08-08
Abstract: Disclosed is an absorbent, extruded, open cell thermoplastic foam. The foam has an open cell content of about 50 percent or more and an average cell size of up to about 1.5 millimeters. The foam is capable of absorbing a liquid at about 50 percent or more of its theoretical volume capacity when absorbing a liquid. The foam preferably has an average equivalent pore size of about 5 micrometers or more. The foam preferably has a structure substantially of cell walls and cell struts. Further disclosed is a method for absorbing a liquid employing the foam by elongation of the extrudate of the extrusion die. Further disclosed is a method of enhancing absorbency of an open cell foam by applying a surfactant to an exposed surface of the foam such that it remains at the surface and does not infiltrate a substantial distance into the foam. Further disclosed is a meat tray and a diaper containing the foam.
Patent CA-2290628-C (CA)
Inventor: VAN DONGEN JACOBUS JOHANNUS MARIA
IPC: C12Q1/6886
Filed: 1998-05-13
Granted: 2013-01-08
Abstract: The invention relates to the field of cytogenetics and the application of genetic diagnostic techniques in pathology and haematology. Specifically, the invention relates to nucleic acid probes that can be used in hybridisation techniques for the detection of chromosomal aberrations and other gene rearrangements such as immunoglobulin (Ig) and T cell receptor (TCR) gene rearrangements. The probes provided by the invention are a distinct and balanced pair of probes of comparable size each preferably being from 1 to 100 kb, or smaller, and flanking a potential breakpoint in a chromosome.
Patent CA-2292443-C (CA)
Inventor: LUND ARNOLD M
IPC: H04M1/247
Filed: 1998-06-24
Granted: 2004-07-27
Abstract: A method and apparatus is provided for automatically retrieving and displaying supplemental information (60) about a called party on the customer premises equipment (CPE) of a calling party. When a caller places a call, the number called is used to look up and return to the caller the Universal Resource Locator (URL) of the called party (56). Application software resident in the caller's CPE uses the URL to retrieve the home page of the called party (58) from the Internet.
Patent CA-2294266-C (CA)
Title: Lift dolly for use with stand-mounted power tools
Inventor: ENGLISH CHARLES L JR
IPC: B60P3/00
Filed: 1998-06-23
Granted: 2005-10-11
Abstract: A lift dolly (10) is provided for lifting and transporting stand-mounted power tools (57) and the like, with little effort. The dolly includes a pair of platforms (1,18) and a wheel system having at least three castors (30) extending downward from the platforms. The dolly is designed such that stepping onto a latching or locking mechanism (25) by the operator causes the wheel system to be forced downward relative to the stand (55) thereby slightly lifting the power tool and stand off the ground and enabling transport of same via the castors. Another step on the locking or latching mechanism disengages the wheel system and permits gravity to return the stand and tool firmly to the ground for use.
Patent CA-2294582-C (CA)
Inventor: SMITH STEPHEN ALISTAIR
IPC: A61K31/44
Filed: 1998-06-15
Granted: 2008-02-12
Abstract: L'invention concerne une méthode de traitement et/ou de prophylaxie, chez un mammifère, du diabète sucré, des états associés à ce diabète ainsi que de certaines complications de celui-ci. Cette méthode consiste à administrer à un mammifère nécessitant un tel traitement, une dose efficace, non toxique et acceptable sur le plan pharmacologique, d'un agent de sensibilisation à l'insuline et d'un agent anti-hyperglycémiant du type biguanide. L'invention concerne également une composition pharmaceutique comprenant un agent de sensibilisation à l'insuline ainsi qu'un agent anti-hyperglycémiant du type biguanide.
Patent CA-2298427-C (CA)
Title: Microbial conversion of 2-methylquinoxaline
Inventor: CAWLEY JAMES JOSEPH
IPC: C12P17/12
Filed: 2000-02-10
Granted: 2004-07-06
Abstract: The present invention relates to processes for the microbial oxidation of 2-methylquinoxaline to 2-quinoxalinecarboxylic acid which comprise contacting 2-methylquinoxaline with a microorganism, or a suitable mutant thereof, and incubating the resulting mixture under conditions sufficient to yield an amount of said 2-quinoxalinecarboxylic acid. The present processes optionally further comprise the isolation and purification of 2-quinoxalinecarboxylic acid.
Patent CA-2298703-C (CA)
Title: Cosmetic composition containing siloxane-based polyamides as thickening agents
Inventor: BARR MORTON L
IPC: A61Q17/02
Filed: 1998-07-30
Granted: 2011-07-19
Abstract: An invention is disclosed which comprises siloxane-based polyamides as gelling agents for cosmetic products, methods for making such agents, formulations thereof and cosmetic formulations therewith. These polyamides contain siloxane groups in the main chain and act to thicken compositions containing volatile and/or non-volatile silicone fluids. Cosmetic compositions may be made by adding at least one active ingredient such as an antiperspirant.
Patent CA-2301044-C (CA)
Inventor: KANG MIN HYUNG
IPC: C12N9/10
Filed: 1999-06-08
Granted: 2006-06-06
Abstract: The present invention relates to DNA constructs that can produce antimicrobi al materials efficientely from microorganisms and the preparation method thereof. The present invention also relates to the useful vector for the DNA construct. The DNA construct according to the present invention comprises a first gene coding for entire, a part of or a derivative of purF gene and a second gene coding for antimicrobial peptide. According to the present invention, antimicrobial peptides can be mass-produced by the following steps: preparing an expression vector containing a DNA construct comprising a fisrt gene codi ng for an entire, a part of or a derivative of purF gene and a second gene coding for antimicrobial peptide; transforming the bacteri al host cells with the above-mentioned vector; culturing the transformed cell to express the above-mentioned DNA construct; and recoverin g the above antimicrobial peptide.
Patent CA-2301798-C (CA)
Title: Apparatus for continuous vacuum forming
Inventor: BOSLER KENNETH
IPC: B29C59/06
Filed: 1998-08-19
Granted: 2007-05-08
Abstract: An apparatus for continuous vacuum forming a material having a flexible patterned belt (14) continuously rotatable with a flat support belt (16) over a vacuum manifold (24). The flexible patterned belt (14) includes apertures (34) therein and the support belt (16) includes perforations (46) therein for drawing air therethrough. The material is drawn onto the flexible patterned belt (14) for vacuum forming the material. The flat support belt (16) provides improved stability of the flexible patterned belt (14) and improved vacuum characteristics between the belts.
Patent CA-2311319-C (CA)
Title: Virtual reality 3d visualization for surgical procedures
Inventor: BURDETTE EVERETTE C
IPC: A61B17/00
Filed: 1998-11-23
Granted: 2005-07-05
Abstract: A method and apparatus for three-dimensional imaging and treatment of a patient's body. The method and apparatus utilize a system (10) for developing a therapy plan for treatment of an organ of the patient, a device (12) for generating ultrasound image data from a treatment region and a device (14) for providing a translucent volume image of a portion of a patient's body and a separate translucent image of the patient organ and a three-dimensional viewing device (16) to superimpose a translucent article image to enable viewing of the article simultaneously with the patient organ and a portion of the patient's body.
Patent CA-2312206-C (CA)
Inventor: VERBEUREN TONY
IPC: A61K38/05
Filed: 2000-06-14
Granted: 2004-07-06
Abstract: A compound selected from those of formula (I):wherein:R1 represents hydrogen, optionally substituted alkyl, cycloalkyl or heterocycloalkyl or a group of formula (G):wherein A1 represents single, -CH2-, -CH2-CH2- or -N(CH3)- or oxygen or sulphur, and X1 and X2, which may be identical or different, each represent carbon or nitrogen,R represents hydrogen or linear or branched (C1-C6)alkyl, represents a saturated ring having from 4 to 7 ring members,n represents integer wherein 1<=n<=6,Ar represents aryl or heteroaryl,its isomers, N-oxydes and pharmaceutically-acceptable acid or base addition salts thereof.
Patent CA-2314349-C (CA)
Title: Method and apparatus for cryptographically camouflaged cryptographic key storage, certificatio and use
Inventor: KAUSIK BALAS NATARAJAN
IPC: H04L9/32
Filed: 1998-12-22
Granted: 2005-09-06
Abstract: A digital wallet stores a cryptographically camouflaged access-controlled datum (330), e.g., a private key encrypted under the user's PIN (300). Entry of the correct PIN will correctly decrypt the storm key (330). Entry of certain "pseudo-valid" PINS will also decrypt the stored key, but incorrectly, resulting in a candidate key indistinguishable from the correct key (350). Such pseudo-valid PINS are spread thinly over the space of PINs, so that the valid user is unlikely to realize a pseudo-valid PIN via a typographical error in entering the correct PIN. In existing wallet technologies only the correct PIN produces a candidate key; thus, hackers can discover the correct PIN by exhaustive search.