baber/WOPTO huggingface dataset:
Patent CA-2194911-C (CA)
Inventor: SJUNNESSON ANDERS
IPC: F23R3/30
Filed: 1994-07-13
Granted: 2004-11-16
Abstract: A low-emission combustion chamber for gas turbine engines comprises an outer casing (21) with an upstream end wall (22) with a pilot fuel injector (4), a first flow swirler (1), an igniting means (7) to initiate a stable diffusion frame in a pilot zone (5), at least one second coaxial swirler (2), main fuel injectors (13), secondary air inlet means, an d a main combustion zone (6). For obtaining still further reduced emissions of primarily nitrogen oxides, the invention suggests that the pilo t zone (5) is confined radially outwardly by a surrounding wall (23) which constitutes the radially inner confinement of an axial outlet portion (11) of a radial vaporization channel (9) within said second swirler (2), and that a third radial flow swirler (3) is adapted to supply said secondary air in a rotary motion opposite to that of the main flow of fuel and air.
Patent CA-2203215-C (CA)
Inventor: MORASCA SALVATORE
IPC: H04B10/2569
Filed: 1997-04-21
Granted: 2003-02-04
Abstract: An acousto-optical waveguide device with compensation of polarization mode dispersion (PMD) comprises at least one first and one second optical path in optical waveguide and at least one compensation optical path connected to the first and second optical path; the compensation optical path has a prefixed PMD such that the passage time of a first polarization component of an optical signal in the first optical path and in the compensation optical path is substantially equal to the passage time of a second polarization component in the second optical path and in the compensation optical path.
Patent CA-2205218-C (CA)
Inventor: BHONGLE NANDKUMAR
IPC: C07H19/20
Filed: 1996-10-18
Granted: 1999-05-25
Abstract: New methods of synthesizing mono- and oligo- nucleotide H-phosphonates are disclosed. The methods comprise contacting a mononucleoside with phosphonic acid and benzoyl anhydride or propane phosphonic acid anhydride to yield the corresponding mononucleoside H-phosphonate. Preferably a catalytic amount of triphosgene is also used. A similar procedure can be used to couple a first mononucleoside to a second mononucleoside or to an oligonucleotide, the method comprising contacting, in the presence of benzoic anhydride or propane phosphonic acid anhydride and, preferably, when benzoic anhydride is used, a catalytic amount of triphosgene, a mononucleotide or oligonucleotide having a free 5' hydroxyl with a mononucleoside having a 3' hydroxyl-bearing phosphorous moiety (preferably H-phosphonate).
Patent CA-2208494-C (CA)
Inventor: HOYT MATTHEW B
IPC: D01F8/12
Filed: 1997-06-17
Granted: 2001-07-31
Abstract: Novel bicomponent fibers useful as carpet face fibers have a polyamide domain co-melt-spun with a polyolefin domain. The preferred fibers are sheath-core bicomponent fibers having the polyamide domain as the sheath and the polyolefin domain as the core. The core comprises less than 30% by weight of the fiber and more preferably less than 25% by weight. Such a bicomponent fiber exhibits desirable physical properties which are comparable to fibers formed of 100% polyamide. The polyolefin core may optionally include one or more inert organic fillers so as to further reduce the material cost of producing the fiber.
Patent CA-2211624-C (CA)
Inventor: TOUGAS MICHEL
IPC: H04Q3/545
Filed: 1996-11-29
Granted: 2002-08-06
Abstract: Un réseau téléphonique comprend au moins une unité de commutation (10, 12) présentant une pluralité de lignes (16) d'accès d'abonnés comportant chacune un numéro demandeur associé, un dispositif de stockage (20) stockant une pluralité de listes de numéros destinataires, chaque liste étant associée à un numéro respectif des numéros destinataires et définissant une zone de départ locale personnalisée pour ce numéro destinataire particulier. L'unité de commutation présente une unité de filtrage d'appel, laquelle contrôle les lignes d'accès d'abonnés et détecte un numéro destinatiare composé par un demandeur établissant un appel; elle accède au dispositif de stockage et sélectionne la liste correspondant au numéro destinataire de l'appel et elle compare le numéro destinataire détecté à la liste sélectionnée. En fonction de cette comparaison, l'unité de filtrage d'appel détermine si l'appel est local ou de longue distance. On peut prévoir que l'abonné crée une zone d'appel personnalisée par addition d'entrées, ou suppression d'entrée dans une zone de départ locale normale commune à un groupe d'abonnés. Le réseau peut permettre la création ou la modification de la liste des abonnés au niveau de l'unité de stockage central et le transfert d'une copie à l'unité de stockage locale appropriée associée au commutateur de l'abonné.
Patent CA-2213588-C (CA)
Title: Remote accurate frequency generation using a numerically controlled oscillator
Inventor: ROSS MICHAEL R
IPC: H04W56/00
Filed: 1997-08-21
Granted: 2001-07-31
Abstract: Within a communication system, driving a numerically controlled oscillator with a frequency of a precision frequency oscillator and adjusting the frequency of the numerically controlled oscillator by a calculated number to be equal to that of a frequency signal derived from an external source. The calculated number utilized to adjust the numerically controlled oscillator is then transmitted to each of a number of subunits. Each subunit has another numerically controlled oscillator that is driven by a frequency derived from an internal communication link connecting the subunit to the communication system; and the other numerically controlled oscillator is controlled by the calculated number so that its frequency matches the frequency of the precision oscillator. The frequency of the internal communication link is controlled by the precision oscillator. In a second embodiment, a frequency signal derived from an external source is used to drive a numerically controlledoscillator whose frequency is adjusted by a calculated number to be equal to that of a precision frequency oscillator. The calculated number utilized to adjust the numerically controlled oscillator is then transmitted to each of a number of subunits. Each subunit has another numerically controlled oscillator that is driven by a frequency derived from an internal communication link connecting the subunit to the communication system; and the other numerically controlled oscillator is controlled by the calculated number so that its frequency matches the frequency of the precision oscillator. The internal communication link is frequency locked to the external source.
Patent CA-2214740-C (CA)
Title: Crankcase breather valve for engines with synchronous piston movement
Inventor: SCHMIDT GENE VAL
IPC: F01M13/00
Filed: 1997-09-05
Granted: 2001-11-20
Abstract: A crankcase breather valve for ventilation and pressure control within the crankcase of an internal combustion engine in which pistons stroke upwardly and downwardly in a synchronous movement. The valve is inserted into a breather hose which conducts gases into and out of the crankcase. The valve comprises a resilient valve member preferably an elastomeric umbrella-type seal spaced above a seal seat and forming a gap therebetween through which gases may flow either direction during portions of the pistons stroke cycle. The valve construction permits three operating modes: firstly to permit the egress of positive pressure gas out of the crankcase and through the gap while the pistons stroke downwardly; secondly, to permit the ingress of a small amount of gas back through the gap into the crankcase when the crankcase pressure changes from positive to negative; and thirdly to check further ingress of gas into the crankcase at greater crankcase suctions developed when the pistons are moving upwardly.
Patent CA-2220413-C (CA)
Inventor: BOUCHARD MICHEL
IPC: E02F7/10
Filed: 1996-05-31
Granted: 2004-07-27
Abstract: A mortarless wall of a building structure has a plurality of blocks (1) arranged in successive overlapping courses. Each of the blocks (1) has a top (5), bottom (7), front (9) and rear (11) face disposed between opposed side ends (2, 3). The blocks (1) are able to interlock in the manner of shingles in a mortarless fashion.
Patent CA-2222953-C (CA)
Inventor: TEIGA MICHAEL TIMOTHY
IPC: A01B45/02
Filed: 1997-12-18
Granted: 2001-08-07
Abstract: A control mechanism for an aerator mechanism, the control mechanism being coupled with the engine for automatically slowing the engine when the aerator mechanism is shifted between transport and operating positions. The engine control mechanism includes a solenoid coupled with an operator engagable position control mechanism and an arm of an engine governor such that the governor will slow the engine when the position control mechanism is engaged to shift the aerator mechanism between transport and operating positions.
Patent CA-2226619-C (CA)
Title: Ensemble double enveloppe n·10 imprimable par ordinateur
Inventor: TATARYAN ANAHIT
IPC: B65D27/10
Filed: 1996-07-11
Granted: 2006-10-31
Abstract: On décrit un ensemble enveloppe double (12), compatible avec une imprimante d'ordinateur ou un photocopieur, utile dans la composition d'adresses pour deux enveloppes n DEG 10 (4-1/8 pouces par 9,5 pouces, ou environ 4 x 9 pouces) (14) et (16), l'ensemble (12) possédant une largeur de l'ordre de 8,5 pouces ainsi qu'une longueur au moins égale à celle desdites enveloppes (14) (16), lesquelles s'étendent dans le sens longitudinal dudit ensemble (12).
Patent CA-2231683-C (CA)
Title: Stent delivery system
Inventor: RAVENSCROFT ADRIAN C
IPC: A61F2/06
Filed: 1996-09-05
Granted: 2005-01-11
Abstract: A stent delivery system (10) with a catheter (11) has an axially extending inner core (14) and outer sheath (24), axially spaced rings (23) extending from a relatively narrow diameter portion (17) of the inner core proximate the dital end thereof. The rings engage proximal portions of a compacted stent (20) disposed within the sheath and over the core and rings. A proximal handle of the system has a first portion (25) that supports the sheath and a second portion (26) that supports the core for relative displacement of the core and the sheath. Retraction of the sheath relative to the core uncovers the stent engaged by the rings which tends to remain stationary relative to the core so that upon partial retraction of the sheath a distal end of the stent expands to its expanded form. Further retraction of the sheath deploys the stent, retracting the core returns the distal portion of the stent into the sheath.
Patent CA-2232068-C (CA)
Inventor: KLAWITTER JEROME JOHN
IPC: A61F2/46
Filed: 1996-09-16
Granted: 2006-11-28
Abstract: L'invention concerne une prothèse d'articulation carpométacarpienne du pouce. Cet implant comprend un premier élément qui remplace la partie articulaire du premier métacarpien qui s'adapte avec un second élément qui remplace la partie articulaire du trapèze. L'articulation du premier élément et du second élément en question est obtenue par mise en about des surfaces d'adaptation toroïdales qui sont des sections complémentaires des surfaces de torus identiques dont le trou central a un diamètre égal à celui du diamètre des tubes. Le contact entre les surfaces d'adaptation intervient uniquement le long d'une paire de lignes incurvées se trouvant dans des plans perpendiculaires, ce qui laisse des espaces dégagés pour la lubrification de l'articulation par les liquides biologiques.
Patent CA-2233792-C (CA)
Title: Process to chloroketones using oxazolines
Inventor: STEPHENS RANDALL WAYNE
IPC: C07D263/14
Filed: 1998-04-01
Granted: 2003-10-28
Abstract: This invention relates to a process for the preparation of an .alpha.-chloroketone compound comprising the steps of (i) cyclizing an alkynyl amide to form a 5-methyleneoxazoline (see.fig.I) (ii) chlorinating the 5-methyleneoxazoline using trichloroisocyanuric acid to produce a chlorinated oxazoline intermediate (see fig.II) and (iii) hydrolyzing the chlorinated oxazoline intermediate with an aqueous acid to produce the desired monochloroketone (see fig.III) wherein Z is alkyl or substituted alkyl, aryl or substituted aryl, heteroaryl or substituted heteroaryl or phenylene, R is a hydrogen atom or alkyl, and R1 and R2 are each independently an alkyl or substituted alkyl group, or R1 and R2 together with the carbon atom to which they are attached form a cyclic structure.  Additionally, when R is a hydrogen atom, a dichloroketone can be conveniently formed through adjustment of reaction conditions.
Patent CA-2236650-C (CA)
Inventor: DONG DENNIS F
IPC: C23F13/14
Filed: 1998-05-05
Granted: 2008-03-11
Abstract: A metal anode useful in a galvanic or impressed current cathodic protection system for a steel reinforced concrete article is a unitary, multi-plane, porous, metal anode strip or ribbon having a plurality of louvers defining a plane or planes at the lateral extremities of said louvers. In one embodiment, louvers extending in their long dimension longitudinally on the anode strip are spaced apart from adjacent louver units by an intermediate plane. Louvered anode strips consisting of a valve metal or alloy or mixture thereof are useful at an anode current density of up to about 20 milliamps per square foot. Louvered metal anodes comprising an electrocatalytically active coating on a valve metal substrate are useful at higher anode current densities. Sacrificial metal anodes such as zinc anodes are useful in galvanic cathodic protection systems.
Patent CA-2247891-C (CA)
Title: Extenseur
Inventor: VENDRELY TIMOTHY G
IPC: A61F2/07
Filed: 1997-03-07
Granted: 2007-07-31
Abstract: La présente invention concerne un extenseur endovasculaire comprenant un corps tubulaire flexible (1) avec l'axe longitudinal et dont la paroi sont formée d'un treillage serré de cellules (2) interconnectées, selon une disposition comportant au moins deux cellules adjacentes sur la circonférence. La matière constituant le treillage est formée de filaments capables de transmettre les forces de compression dans le sens axial du filament et s'étend directement d'une cellule du treillage à la cellule du treillage suivante dans le sens longitudinal. L'extenseur peut passer d'un état de compression radiale à un état d'extension radiale lui procurant un diamètre plus grand. Dans l'état étendu de l'extenseur, la matière du treillage de transmission de pression des cellules (2) prend une forme de coeur - ou de flèche - avec au moins deux côtés interconnectés divergeants, à savoir les côtés (5) des cellules d'angle  beta  en position opposée et interconnectée avec au moins deux côtés (3) convergeants plus longs des cellules d'angle  alpha . Pour une meilleure stabilité durant les phases d'extension et de compression de l'extenseur, la somme du premier angle  alpha  et du second angle  beta  doit se situer dans une plage comprise entre 345 DEG  et 360 DEG , de manière préférentielle à 360 DEG , afin de maintenir une longueur constante du tuteur dans le sens axial.
Patent CA-2252912-C (CA)
Inventor: OTSUKA YOKO
IPC: C12M1/00
Filed: 1998-03-02
Granted: 2005-07-26
Abstract: Analytical method, kit, and apparatus which, in one analytical apparatus, can simultaneously judge the presence or absence of at least one biological substance with higher sensitivity or can determine the amount of the at least one biological substance. A reagent containing at least one marker-labeled ligand and at least one nucleic acid-labeled ligand is brought into contact with a liquid sampled containing at least one analyte to form at least one complex. The resultant at least one composite is developed in a developing element sheet (11) by a capillary phenomenon.      Anti-binders, for which detection zones (15, 16,17) are formed for each of at least one nucleic acid immobilized onto the detection zone (14), are captured by complementary binding of the nucleic acid. The composite is captured for each of the analyte by complementary binding between the anti-binder and the binder to form separate bands, thereby assaying the amount or presence of the detection site.
Patent CA-2256460-C (CA)
Inventor: MAINGOT ALAN LAWRENCE
IPC: A61F13/15
Filed: 1997-05-30
Granted: 2004-03-23
Abstract: A method for the selection and use of a system of feminine hygiene products is described. The method includes an information collection step, a system selection step, and an information provision step.  In the information collection step, information is collected from a consumer regarding her body type and menstrual cycle characteristics. In the system selection step, the information collected is used to select a system of feminine hygiene products from at least two of such available systems. Each of such available systems is comprised of at least two different feminine hygiene products. Additionally, each of said available systems is adapted to correspond to a predetermined range of body types and menstrual cycle characteristics. In the information provision step, information identifying the system of products selected is then provided to the consumer allowing her to use the system of feminine hygiene products.
Patent CA-2258044-C (CA)
Title: Muscarinic antagonists
Inventor: KOZLOWSKI JOSEPH A
IPC: C07D413/14
Filed: 1997-06-26
Granted: 2007-09-04
Abstract: Di-N-substituted piperazine or 1,4di-substituted piperidine compounds in accordance with formula (I) (including all isomers, salts, esters, and solvates), wherein Q, n, R, R1, R2, R3, R4, R21, R27, R28, X, and Z are as defined herein are muscarinic antagonists useful for treating cognitive disorders such as Alzheimer's disease. Pharmaceutical compositions and methods of preparation are also disclosed. Also disclosed are synergistic combinations with acetylcholinesterase inhibitors of compounds capable of enhancing acetylcholine release and having the above formula.
Patent CA-2262017-C (CA)
Inventor: FRANCKE RICHARD C
IPC: H01R13/24
Filed: 1999-02-16
Granted: 2003-07-22
Abstract: A rail member and ground clip assembly useable for mechanically and electrically coupling printed circuit boards to chassis. The assembly having a stud protruding into an electrical contact opening in the rail member, wherein a first end portion of the resilient electrical contact is disposed on a fastener boss proximate the electrical contact opening, a bifurcated curved portion of the resilient electrical contact protrudes at least partially through the electrical contact opening beyond a bottom side of the rail member, and the stud is disposed through an opening in the resilient electrical contact to engagably couple the resilient electrical contact to the rail member. The resilient electrical contact also includes a compression wave portion between the first end portion and the curved portion to bias the curved portion into engagement with the chassis. A non-threaded rivet fastens the rail member to the printed circuit board.
Patent CA-2267313-C (CA)
Title: The manufacture of non-cfc cellular resol foams using perfluorinated ethers
Inventor: SANTOS RUBEN
IPC: C08J9/14
Filed: 1997-07-15
Granted: 2006-11-07
Abstract: The invention relates to a process for producing non-CFC resol foams of low density using perfluorinated ethers along with an HCFC or CFC blowing agent, and to foams produced by such a process. The process generally comprises: (a) forming a mixture by combining a resol resin with a blowing-agent blend comprising (i) at least one blowing agent selected from the group consisting of hydrogenated chlorofluorocarbons and hydrogenated fluorocarbons and (ii) at least one perfluoroether additive selected from the group consisting of perfluorinated ethers; (b) adding an acid catalyst to the mixture to initiate foaming and form a foam; and (c) curing the foam to form a cured foam that is essentially free of CFCs.
Patent CA-2268813-C (CA)
Inventor: COUZAN SERGE
IPC: A61F13/08
Filed: 1997-10-22
Granted: 2006-09-19
Abstract: A support stocking having an elastic compression force on the calf greater than the compression force on the ankle and foot of a person. The compressive forces of the support stocking aid in venous recovery after physical exertion, such as in sports or athletics. The support stocking's design also aids in delaying problematic venous conditions such as venous insufficiency, even in non-athletes.
Patent CA-2270344-C (CA)
Title: Refining of edible oil rich in natural carotenes and vitamin e
Inventor: UNNITHAN UNNIKRISHNAN RAMACHAN
IPC: C11B3/12
Filed: 1996-11-15
Granted: 2003-04-22
Abstract: 8  The invention discloses a process for the production of a natural carotene rich refined and deodorised oil by subjecting the oil to a pressure of less than 0.060 mbar a nd to a temperature of less than 200.degree.C and wherein the process includes the steps of distilling t he oil in a short-path distiller at a temperature range of 160.degree.C-210.degree.C and at pressures of 0.003 mba r to 0.08 mbar and removing free fatty acids (FFA) in the oil by condensation within the distiller. The FFA i s removed by subjecting the mixture of the oil and the FFA to an internal condensor system operating at a temperature greater than the melting point of FFA in the oil. The process yields in refined, deodorised oil, in particular palm oil where the carotene and Vitamin E contained the feed oil is substantially retained in the processed oil.
Patent CA-2282041-C (CA)
Inventor: MURAOKA SHINYA
IPC: H04L1/20
Filed: 1999-09-08
Granted: 2006-06-27
Abstract: In order to control the transmission interval of unique words inserted at the top of a plurality of HDLC frames in accordance with the quality of the transmission line, a transmitting and receiving system is provided, in which the transmission interval is changed in accordance with the HDLC responses included in the receiving data.      Examples of the HDLC responses includes RR (Receive Ready), RNR (Receive Not Ready), and REJ (Reject).
Patent CA-2287054-C (CA)
Title: 1,3,8-triazaspiro¬4,5|decanone compounds as orl1-receptor agonists
Inventor: OHASHI YORIKO
IPC: C07D221/00
Filed: 1999-10-21
Granted: 2003-04-22
Abstract: A compound of the formula: (see formula I) R1 and R2 are independently C1-C4 alkyl; or R1 and R2, taken together with the carbon atom to which they are attached, form a mono-, bi-, tri- or spiro-cyclic group having 3 to 13 carbon atoms, wherein the cyclic group is optionally substituted by one to five substituents; A is (C1-C3)alkyl, phenyl, benzyl or the like; R is hydrogen, (C1-C3)alkyl, amino-(C1-C6)alkyl, heterocyclic-(C1-C3)alkyl wherein the heterocyclic is optionally substituted by amino, ((C1-C4)alkyl)-Z-(C1-C6)alkyl wherein Z is OC(=O) or the like; and X is (C1-C3)alkyl, phenyl or the like. These compounds are useful as ORL1-receptor agonists, and useful as analgesics or the like in mammalian subjects.
Patent CA-2287512-C (CA)
Inventor: BENDER PAUL E
IPC: H04W56/00
Filed: 1999-02-19
Granted: 2007-07-03
Abstract: A method and apparatus for controlling the transmit power levels of first and second base station transceivers, wherein the first and second base station transceivers are respectively associated with first and second sectors of a cell. The received signal strength of a communication signal arriving at the mobile station is initially determined. A  power control value that is based on the received signal strength is then transmitted from the mobile station to the first and second base station transceivers. A first received power control value is next generated by attempting to receive the transmitted power control value at the first base station transceiver, and a second received power control value is generated by attempting to receive the transmitted power control value at the second base station transceiver. A  common transmit power value is calculated at a base station controller for the first and second base station tranceivers when the first and second received power control values are unequal.  The communication signal is then transmitted from the first and second base station transceivers in accordance with the common transmit power value.