baber/WOPTO huggingface dataset:
Patent CA-2300608-C (CA)
Title: Method for determining the corrosiveness of naphthenic acid in crude oil and refinery streams
Inventor: VERA JOSE R
IPC: G01N27/416
Filed: 2000-03-10
Granted: 2002-07-09
Abstract: A method for determining corrosiveness of naphthenic acid in a fluid includes the steps of: providing a fluid containing naphthenic acid; providing iron powder having a surface area of at least about 0.01 m2/g; contacting the fluid and the powder for a period of time so as to provide a portion of the iron as dissolved iron dissolved in the fluid; and measuring iron concentration of the fluid containing the dissolved iron, so as to provide a measure of corrosion potential of the naphthenic acid over the period of time.
Patent CA-2303388-C (CA)
Title: Transmitter diversity technique for wireless communications
Inventor: TAROKH VAHID
IPC: H04L1/00
Filed: 1998-08-31
Granted: 2004-06-08
Abstract: A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only simple arithmetic operations, such as negation an d conjugation. The diversity created by the transmitter utilizes space diversity and either time or frequency diversity. Space diversity is effected by redundantly transmitting over a plurality of antennas, time diversity is effected by redundantly transmitting at different times, a nd frequency diversity is effected by redundantly transmitting at different frequencies. Illustratively, using two transmit antennas and a single receive antenna, one of the disclosed embodiments provides the same diversity gain as the maximal-ratio deceiver combining (MRRC) schem e with one transmit antenna and two receive antennas. The principles of this invention are applicable to arrangements with more than t wo antennas, and an illustrative embodiment is disclosed using the same space block code with two transmit and two receive antennas.</SDOAB >
Patent CA-2303492-C (CA)
Inventor: CONLON PAUL T
IPC: D01D5/32
Filed: 1998-09-15
Granted: 2003-11-25
Abstract: A process for forming flexible cutting line for use in rotary vegetation trimmers of the type having two or more monofilament lines mounted on a comm on spool. The line produced by the process of the present invention defines two monofilament strands joined together in a side-by-side relationship by a severable bond. Each strand defines a plurality of circumferentially spaced and outwardly projecting vegetation cutting edges thereon, two of the edges on one of the strands being in parallel contact with two of the edges on the other strand so as to define a pair of parallel readily severable welds bonding the strands together in a side-by-side disposition. The line forming process includes the steps of extruding the strands such that two of the edg es on one strand are in proximate dispositon and opposed parallel alignment wit h two of the edges on the other strand, directing the extruding strands togeth er in edge-to-edge parallel contact along the opposed edges such that an enclos ed space is defined between the strands so thatthe heat in the strands can crea te a positive pressure in the enclosed area to prevent inseparable fusion of th e strands. The strands are then directed in edge-to-edge contact into a coolin g quench bath, and pulled through the bath to effect crystallization and bondi ng together of the strands in an adjacent disposition along two readily severab le parallel welds defined by the contacting edges.
Patent CA-2308713-C (CA)
Inventor: WELLS COLIN
IPC: G10D3/00
Filed: 1998-10-29
Granted: 2006-06-06
Abstract: A device for forming chords on stringed musical instruments of the type having a fingerboard, the device comprising means (55, 56) for pressing a plurality of strings on to the fingerboard at a chosen position along the fingerboard, the device being rotatable about said means to raise the pitch of at least one string and to lower the pitch of at least one string relative to the pitch achievable by said means pressing the respective string at the chosen position.
Patent CA-2310023-C (CA)
Inventor: FISCHER HELMUT
IPC: F01M11/03
Filed: 1998-04-16
Granted: 2007-08-28
Abstract: La présente invention porte sur un rotor (1) destiné à être placé dans l'enceinte (16) d'une centrifugeuse à jet libre. Au moins la tête de rotor (11) est en matière plastique. A l'intérieur du rotor sont installées des nervures, de préférence à extension radiale, pour renforcer ladite tête de rotor et faciliter l'acheminement du fluide de centrifugation. De par sa forme, le rotor de centrigeuse (11) en matière plastique peut se constituer d'un nombre réduit de pièces. Le rotor peut être conçu en deux éléments, soit encliquetés soit soudés. La centrifugeuse à huile dotée d'un tel rotor se prête avantageusement au nettoyage d'huile de graissage de moteurs à combustion interne.
Patent CA-2317014-C (CA)
Title: Series for compressed air motors with torque which can be theoretically output in a varied manner and a method for producing the individual compressed motors of said series
Inventor: KORNER TILLMANN
IPC: F04C2/08
Filed: 1999-10-18
Granted: 2004-09-28
Abstract: The invention relates to a series for compressed air motors provided for different volumetric displacements comprising at least two compressed air motors (1, 100). Each compressed air motor has at least two intermeshing displacement elements (45, 104, 105), one first displacement element (4, 104), and a second displacement element (5, 105) provided in the form of toothed wheels. The individual compressed air motors of the series comprise a) essentially identical dimensions for the center distance (a) between the theoretical axes or the theoretical axes of rotation of both displacement elements and b) one essentially identical teeth width (zb1, zb2) in the form of an essentially identical axial extension of the teeth elements. The individual compressed air motors differ from one another at least with regard to the size of the diameter of the addendum circle (dk1, dk2, dk1b, dk2b) of at least one of both displacement elements.
Patent CA-2325611-C (CA)
Inventor: NEILSON DAVID THOMAS
IPC: G02B26/08
Filed: 2000-11-09
Granted: 2004-04-20
Abstract: An optical device for routing a plurality of optical signals between a first port and a second port is disclosed. The optical device includes a mirror array having a plurality of reflective elements. Each optical input signal is directed by a reflective element in a direction designated by a control signal. The optical device further includes a curved mirror for receiving each directed optical signal from the respective reflective element, and for reflecting each directed optical signal to the first or second port.
Patent CA-2330037-C (CA)
Inventor: HERRING RUSSELL M
IPC: H01Q9/04
Filed: 1999-04-26
Granted: 2010-02-09
Abstract: L'invention concerne un système d'antenne comprenant une antenne polarisée circulairement à gauche (50), qui permet de recevoir d'un satellite de localisation GPS (10) des signaux qui, à l'origine, sont transmis sous forme de signaux polarisés circulairement à droite (RHCP). La réception se fait après réflexion ou rebond depuis une surface, une ou plusieurs fois, du signal polarisé circulairement à droite. Le nombre de réflexions doit être un nombre impair. L'antenne (50) peut être montée sous un véhicule (70) ou un surplomb (300) de bâtiment. Le procédé de l'invention consiste à émettre un signal polarisé circulairement à droite, puis à recevoir ledit signal au moyen d'une antenne polarisée circulairement à gauche (50), disposée à un emplacement où le signal polarisé circulairement à droite peut être réfléchi, avant sa réception, par un nombre impair de surfaces.
Patent CA-2330922-C (CA)
Inventor: TUSIM MARTIN H
IPC: B29C48/09
Filed: 1999-04-30
Granted: 2009-09-29
Abstract: A process for making a polymer foam sheet, which comprises (i) extruding through an annular extrusion die a foamable composition comprising at least one polypropylene polymer and at least one blowing agent, at a pressure, temperature, and extrusion rate sufficient to prevent foaming of the composition prior to exiting the die, under conditions sufficient to form a foam tube having a density of at least (16) kg/m3 and no greater than 200 kg/m3, an open cell content of less than 70 percent, a circumference of at least 1 meter, and a foam thickness of at least 2 mm and no greater than 25 mm, wherein the blowing agent is used in an amount of from 0.2 to 4.5 moles per kg of polymer, (ii) allowing the foam to cool to a temperature below the melt temperature of the polypropylene, and (iii) cutting the tube of foam along its radius to form a foam sheet, wherein at least 70 percent by weight of the polymer in such sheet is a polypropylene having a melt strength in the range of from 25 to 60 cN when measured at 190 °C.
Patent CA-2333432-C (CA)
Title: Methode et dispositif permettant de moduler la mort cellulaire programmee dans des cellules eucaryotes
Inventor: BABIYCHUK ELENA
IPC: C12N15/09
Filed: 1999-07-12
Granted: 2011-09-20
Abstract: L'invention concerne une méthode et un dispositif permettant de moduler la mort cellulaire programmée dans des cellules et des organismes eucaryotes, notamment des cellules végétales et des végétaux. En introduisant des gènes chimères modulateurs de mort cellulaire programmée, lesquels influencent l'expression et/ou l'activité apparente de gènes de la poly(ADP-ribose)polymérase (PARP), il est possible d'inhiber ou de provoquer la mort cellulaire programmée. L'invention concerne notamment l'utilisation de séquences nucléotidiques codant pour des protéines à l'aide de l'activité de la PARP afin de moduler la mort cellulaire programmée, d'augmenter la vitesse de croissance et de produire des cellules et des organismes tolérants au stress.
Patent CA-2334826-C (CA)
Title: Faecal collector having breathable skin attachment means
Inventor: CINELLI FABIO
IPC: A61F5/452
Filed: 1998-06-26
Granted: 2006-07-25
Abstract: The present invention relates to a faecal management device for babies, children or adults to be attached to the perianal area of the wearer. More particularly, the invention relates to an applicator for such a device (10). Claimed and described is an applicator (40), to be used in the placement of a faecal management device (10), said device (10) comprising a bag (11), said bag (11) having an aperture (21) and a flange (12) surrounding said aperture (21) for adhesive attachment to perianal area of a wearer, said applicator (40) comprising a handling portion (42); characterised in that said applicator (40) comprises at least two pressure points (42).
Patent CA-2346135-C (CA)
Title: Accumulateur alcalin
Inventor: HOSHINA YASUKO
IPC: H01M6/08
Filed: 1999-10-04
Granted: 2004-07-06
Abstract: La présente invention concerne un accumulateur alcalin présentant de bonnes caractéristiques de charge élevée/décharge même après un long stockage à des températures élevées. L'accumulateur alcalin de la présente invention comprend une électrode positive contenant comme matière active un dioxyde manganèse et un oxyhydroxyde de nickel, une électrode négative contenant comme matière active du zinc, et un électrolyte alcalin. L'électrode positive contient en outre au moins un composé sélectionné dans le groupe constitué par un composé de zinc contenant de l'oxygène, un composé de calcium contenant de l'oxygène, un composé d'yttrium contenant de l'oxygène, et un composé de titane contenant de l'oxygène.
Patent CA-2349455-C (CA)
Inventor: PIRETTI GIANCARLO
IPC: A47C7/02
Filed: 2001-06-01
Granted: 2009-11-24
Abstract: A chair, in particular a chair for office use, comprising: - a base support (14); - a seat-supporting structure (16) mounted in an oscillating way with respect to the base support (14); and - a seat (18), mounted so that it can slide in the longitudinal direction on the seat-supporting structure (16). The seat (18) and the seat-supporting structure (16) are provided with arrest means (42, 46, 50) defining a plurality of clamping positions for clamping the seat.
Patent CA-2351578-C (CA)
Title: Vacuum cleaner actuator switch
Inventor: CREVLING ROBERT L
IPC: A47L7/00
Filed: 2001-06-26
Granted: 2008-09-23
Abstract: A switch assembly for a wet/dry vacuum cleaner is disclosed. The switch assembly includes a switch having a movable arm adapted to connect first and second conductive terminals with a rocker arm pivotally attached to the switch. The rocker arm is operable by an actuator button and a de-- actuator button which are user engageable. Depending upon which of the de-actuator and actuator buttons are depressed, the rocker arm assumes a given position relative to the switch, which in turn results in an on or off position for the switch. An automatic shut-off assembly is operable in conjunction with the switch assembly to tum the switch to an off position in the event that the level of liquid within the tank rises beyond an acceptable level. The switch assembly enables the operator to manually override the automatic shut-off assembly.
Patent CA-2357140-C (CA)
Inventor: DELAND ANDRE
IPC: B62D55/125
Filed: 2001-09-11
Granted: 2004-11-02
Abstract: This invention relates to endless tracks and systems used to propel track laying vehicles [i.e., vehicles which use endless tracks rather than tires to contact the terrain over which they are driven, e.g., tractors, tanks, bulldozers, etc.] and, more particularly, to an improved rubber track design and system allowing the endless track to be driven more efficiently at highway speeds. The track is made from a polymer adapted to travel over a drive sprocket, a plurality of guide wheels and a tensioning wheel, said track having a first exterior ground engaging surface and a second interior drive sprocket engaging surface, said track comprising: a carcass portion in which reinforcing means are embedded into said polymer; a plurality of tread lugs disposed on said first engaging surface; a plurality of drive lugs disposed on said second engaging surface and a plurality of guide horns disposed on said second engaging surface.
Patent CA-2370839-C (CA)
Title: Method and apparatus for starting an explosion proof heater
Inventor: STRATFORD GEORGE JOSEPH
IPC: F24V30/00
Filed: 2002-02-06
Granted: 2011-02-22
Abstract: A method and an apparatus for starting an explosion proof heater. A first step involves providing a portable generator, a transformer transforming a primary output voltage of the portable generator to a secondary output voltage suitable for starting the explosion proof heater, and power cables. A  second step involves positioning the portable generator remotely from the explosion proof heater. A third step involves transforming the primary output voltage of the portable generator to the secondary output voltage with the transformer. A fourth step involves passing the secondary output voltage through the power cables from the transformer to the explosion proof heater until the explosion proof heater is capable of sustained operation without the secondary output voltage.
Patent CA-2371602-C (CA)
Inventor: RECHNER ERIC
IPC: G01B11/04
Filed: 2002-02-01
Granted: 2006-04-18
Abstract: A large profile, high speed laser micrometer is formed from a light source unit comprised of a plurality of emitter modules that combine to emit a laser sheet and a detector array comprised of a plurality of detector modules. The laser micrometer also includes a data processing unit. Each of the emitter modules is aligned with a corresponding detector module such that an object passing between the light source unit and the detector array can be measured to an accuracy of at least 4/100ths of an inch.
Patent CA-2375846-C (CA)
Title: Method and apparatus for determining characteristics of components of a communication channel
Inventor: BETHSCHEIDER GERHARD
IPC: H04B17/00
Filed: 1999-06-18
Granted: 2008-11-04
Abstract: The invention refers to a method and an apparatus for determining characteristics of components of a communication channel. In order to simplify the inter-system coordination in a beginning of life test of a satellite communication channel and avoiding the interference of adjacent satellite systems the method according to the invention comprises the following steps: modulating a clean carrier signal f(t) by spread spectrum modulation to generate a spreaded clean carrier signal s(t); transmitting said spreaded clean carrier signal s(t) through said communication channel at a first predetermined level; receiving a receive signal s'(t) corresponding to said spreaded clean carrier signal s(t) after having traveled through said communication channel; demodulating said receive signal s'(t) by spread spectrum demodulation to generate a despreaded carrier signal f'(t); determining characteristics of components of the communication channel on the basis of a comparison of said clean carrier signal f(t) and said despreaded carrier signal f'(t).
Patent CA-2377254-C (CA)
Inventor: BRUCK RAFAEL
IPC: A61K31/21
Filed: 2000-06-19
Granted: 2009-08-18
Abstract: L'invention concerne une méthode permettant d'inhiber la prolifération cellulaire induite ou régulée par Ras, associée à une maladie, à un trouble ou à un état pathologique non malins. Cette méthode consiste à administrer à un patient un antagoniste de Ras en quantité suffisante pour inhiber la prolifération. Cette méthode convient en particulier pour les maladies qui se caractérisent par une prolifération de lymphocytes T, telles que les maladies auto-immunes, par exemple le diabète de type I, le lupus et la sclérose en plaques, ainsi que pour des états pathologiques tels que les rejets de greffe induits par la présentation d'un antigène étranger dans le cas d'une greffe  réalisée suite à un état pathologique (p. ex. insuffisance rénale). D'autres pathologies non malignes caractérisées par une prolifération cellulaire comprennent notamment la cirrhose du foie ou la resténose. Les antagonistes de Ras préférés sont l'acide S-trans-trans farnésylthiosalicylique (FTS) et des composés structurellement voisins (ou analogues) de ce dernier.
Patent CA-2380448-C (CA)
Title: Dispositif destine a actionner un coulisseau dans un dispositif de levage ou de serrage, en particulier pour l'agrafage de toles dans la construction automobile
Inventor: GORGEN ALOIS
IPC: B30B1/40
Filed: 2000-05-25
Granted: 2008-10-28
Abstract: L'invention concerne un dispositif destiné à actionner un coulisseau dans un dispositif de levage ou de serrage, en particulier pour l'agrafage de tôles dans la construction automobile. Un coulisseau (1) pouvant être entraîné et guidé dans une structure de base (3) portant le banc d'agrafage, presse les tôles à agrafer contre des outils d'agrafage fixes. Selon l'invention, ledit coulisseau (1) s'appuie sur au moins une surface d'appui (7) réglable au moyen d'un moteur électrique.
Patent CA-2387939-C (CA)
Title: Ultra low frequency transducer and loud speaker comprising same
Inventor: DOERING WILLIAM O
IPC: H04R7/18
Filed: 2000-10-20
Granted: 2006-09-12
Abstract: An ultra low frequency transducer or subwoofer for automotive speaker systems with a concave diaphragm and a pleated surround.    Preferably, the periphery of the diaphragm is square or rectangular and sized to be substantially coextensive with the front of the speaker housing or cabinet. In this way, air displacement in the subwoofer is maximized for a given size of enclosure, and thus so is the loudness of the speaker.    The transducer typically includes a frame or basket with a square front for supporting the periphery of the diaphragm. The preferred diaphragm includes a convex surround with pleated corners. For increased durability, trusses are formed in the diaphragm.
Patent CA-2397398-C (CA)
Inventor: TERRY STEPHEN E
IPC: H04B1/707
Filed: 2001-01-12
Granted: 2007-06-12
Abstract: A CDMA telecommunication system utilizes a plurality of protocol layers including a physical layer and a medium access control (MAC) layer such that the MAC layer provides data to the physical layer via plurality of transport channels (TrCHs). Each TrCH is associated with a set of logical channels. The physical layer receives blocks of data for transport such that the transport blocks (TBs) includes a MAC header and logical channel data for a selected logical channel associated with a given TrCH. Each TB has one of a selected limited finite number of TB bit sizes. The logical channel data for each TB has a bit size evenly divisible by a selected integer N greater than three (3). The MAC header for each TB has a bit size such that the MAC header bit size plus the logical channel data bit size equals one of the TB bit sizes. A fixed MAC header bit size is associated with each logical channel for a given TrCH and is selected such that each fixed MAC header bit size equals M modulo N where M is an integer greater than O and less than N, i.e. each MAC header for a given TrCH has a bit offset equal to M.
Patent CA-2400156-C (CA)
Inventor: BOUVERESSE JEANNE-ANTIDE
IPC: B43K17/00
Filed: 2001-02-12
Granted: 2008-12-23
Abstract: In a hand-held dispenser (1) for applying a flowable correction medium on a substrate surface the correction medium (gas, liquid or flowable solid) is provided in a reservoir (3) of the dispenser (1) being in communication with an application member (11, 24, 27) at least in the operating state of the dispenser (1), in which the dispenser (1) is pressed against a substrate surface, such that the correction medium can flow from the reservoir (3) to the application member (11, 24, 27) in this operating state. The application member is designed such that the application width of the application member can be selected by adjusting the dimensions of the contact region of the application member and the substrate surface. This can be particularly done by adjusting the force and/or the direction by which the application member is pressed against the substrate surface.
Patent CA-2402023-C (CA)
Title: Vehicle brake safety system apparatus and methods
Inventor: MACGREGOR G DAVID
IPC: B60T13/26
Filed: 2000-12-04
Granted: 2008-11-25
Abstract: The present invention is a safety-enhancing automatic brake control system that automatically applies and maintains the brakes in the applied state, in response to sensors at various stations around/in the vehicle or equipment that signal an invented controller when conditions exist that make vehicle movement potentially dangerous. The controller validates the signals and then actuates a mechanism that manages the air, brake fluid, or mechanical brake linkage/cable that applies the brakes. The control system preferably includes a vehicle motion override system that prevents automatic application of the brakes if the vehicle is in motion above a set speed, and a manual brake-releasing override that allows a driver to override the controller temporarily at the driver's discretion.
Patent CA-2402038-C (CA)
Title: Lpa receptor agonists and antagonists and methods of use
Inventor: MILLER DUANE D
IPC: A61K31/66
Filed: 2001-03-19
Granted: 2011-03-15
Abstract: The present invention relates to compounds according to formula (I) as disclosed herein as well as pharmaceutical compositions which include those compounds. Also disclosed are methods of using such compounds, which have activity as agonists or as antagonists of LPA receptors; such methods including inhibiting LPA  activity on an LPA receptor, modulating LPA receptor activity, treating cancer, enhancing cell proliferation, and treating a wound.   (see formula I)