baber/WOPTO huggingface dataset:
Patent CA-2320496-A1 (CA)
Title: Process for the preparation of isochroman-3-ones
Inventor: GEISSLER HOLGER
IPC: C07D311/76
Filed: 2000-09-22
Abstract: The present invention relates to a process for the preparation of an isochroman-3-one of the formula (I) (see formula I) by reaction of a 1,2-bishalomethylbenzene of the formula (II) (see formula II) in which X is chlorine, bromine or iodine, with carbon monoxide and a compound of the formula (III) R5R6R7C-OH   (III) at a CO pressure of 0.1 to 50 MPa and a temperature of 20 to 200°C in the presence or absence of an ionic halide, in the presence of a palladium catalyst and of a dipolar aprotic solvent, with addition of water or without addition of water, where in the formulae (I) and (II) the radicals R1, R2, R3 and R4 independently of one another are: a hydrogen or fluorine atom; an NC or F3C group; an alkyl, alkoxy or acyloxy radical, in each case having 1 to 18 carbon atoms; or a C6-C18-aryloxy, aryl or heteroaryl radical, where 1 to 3 atoms from the group consisting of O, N and/or S are present as heteroatoms; or in which at least two of the radicals R1, R2, R3 and R4 are linked to one another and form at least one aliphatic or aromatic ring having 5 to 18 carbon atoms, and in formula (III) the radicals R5, R6 and R7 are identical or different and are a C1-C18-alkyl, an HOC(=O)-, H3CC(=O)CH2- or (C6-C18-aryl)-CH2- radical or at least two of the radicals R5, R6 and R7 are linked to one another and form at least one aliphatic or aromatic ring having 5 to 18 carbon atoms.
Patent CA-2321301-A1 (CA)
Title: Narrow band infrared water cut meter
Inventor: LANSANGAN ROBERTO M
IPC: G01N21/35
Filed: 1999-02-25
Abstract: The present invention provides a narrow band infrared water cut meter for detecting a full water cut range of a flow stream. The water cut meter includes a light source probe for irradiating the flow stream with a narrow band of infrared light and a light detector probe for sensing infrared light passed through the flow stream. For a narrow band of infrared light of a predetermined wavelength, there is a large difference in the absorption of infrared radiation between oil and water.  At such a wavelength, the narrow band of infrared light is substantially transmitted through water content and gas content of the flow stream and substantially absorbed by oil content of the flow stream. The water cut meter thus differentiates oil by treating gas like water. Unlike other water cut meters, the narrow band infrared water cut meter is independent of variations of oil and water densities, salinity, oil emulsions, varying flow rates, and the gas content of a flow stream.
Patent CA-2324263-A1 (CA)
Inventor: BROUWER WALTER GERHARD
IPC: C07D333/70
Filed: 1999-03-01
Abstract: A process for the preparation of a substituted 2-benzo [b] thiophenecarboxylic acid compound or an alkali metal salt thereof, which comprises reacting a halobenzoyl derivative with mercaptoacetic acid in the presence of an alkali metal hydroxide and water. Substituted 2-benzo [b] thiophenecarboxylic acid compounds and alkali metal salts thereof are useful as intermediates for pharmaceuticals, agricultural chemicals, material preservatives, and the like.
Patent CA-2326371-A1 (CA)
Inventor: KOESSLER JUERGEN
IPC: F24F13/14
Filed: 2000-11-20
Abstract: A roof vent is fabricated, for example by injection molding, as a unitary plastic part. The roof vent is weatherproof and inexpensive to manufacture. A duct adapter snaps into the roof vent to permit the connection of ducts of various sizes. The duct adapter has a stepped portion with cylindrical steps dimensioned to fit inside standard ducts of two different diameters. A collar dimensioned to fit around the outside surface of a larger duct extends around the duct adapter. A flap valve at the upper end of the duct adapter closes the duct when air is not flowing out through the duct.
Patent CA-2329027-A1 (CA)
Title: A process for the production of paper
Inventor: CARLEN JOAKIM
IPC: D21H17/67
Filed: 1999-04-26
Abstract: The invention relates to a process for the production of paper from a suspension containing cellulosic fibres, and optional fillers, which comprises adding to the suspension a drainage and retention aid comprising a cationic or amphoteric polysaccharide, forming and dewatering the suspension on a wire, wherein the cationic poylsaccharide has a hydrophobic group. The invention further relates to a process for the production of paper from a suspension containing cellulosic fibres, and optional fillers, which comprises adding to the suspension a dry strength agent comprising a cationic or amphoteric polysaccharide, forming and dewatering the suspension on a wire, wherein the polysaccharide has a hydrophobic group.
Patent CA-2331712-A1 (CA)
Title: Method of and system for processing multicomponent seismic data
Inventor: ZHU XIANHUAI
IPC: G01V1/28
Filed: 1999-03-03
Abstract: Methods and systems are provided for orientation of multicomponent geophones, for rotating traces, and for correcting polarity differences between traces. According to an example embodiment, a receiver orientation angle is assigned, based on a determination of an angle between one or more horizontal components and one or more sources.
Patent CA-2332584-A1 (CA)
Title: Method for cleaning printing machines and printing moulds
Inventor: FRANK ERICH
IPC: B41N3/06
Filed: 1999-05-20
Abstract: A process is proposed for cleaning printing machines or printing plates by removing the contaminants from the surfaces to be cleaned by washing them with a microemulsion comprising water, a surfactant, and a water-immiscible organic solvent.
Patent CA-2333458-A1 (CA)
Inventor: MULLER HERMANN-FRANK
IPC: H01L31/058
Filed: 1999-05-26
Abstract: Ce store comprend un cadre (12a, 12b, 12c) et une banne souple (1) montée sur le cadre, de manière à pouvoir être enroulée et être mise en position escamotée, et déployée pour être mise en position étendue. Cette banne présente des modules solaires (2) flexibles. Le cadre comprend un rouleau sur lequel on enroule la banne pour la mettre en position escamotée. Au moins une cellule de stockage est reliée aux modules solaires et montée dans le rouleau, et elle conserve l'énergie électrique produite par les modules solaires (2). On peut faire fonctionner ce store au moyen de l'énergie conservée dans la cellule de stockage.
Patent CA-2333762-A1 (CA)
Title: Transparent hair conditioning composition comprising breakable visible particle
Inventor: COX BRUCE RUSSELL
IPC: A61Q5/12
Filed: 1998-07-30
Abstract: Disclosed is a hair conditioning composition comprising: (1) a breakable visible particle; (2) a silicone compound; and (3) an aqueous carrier; wherein the composition is transparent.
Patent CA-2339466-A1 (CA)
Title: Optical switch comprised of electro-optic crystal based on total internal reflection
Inventor: ZHANG JINGYN
IPC: G02B6/35
Filed: 2001-03-06
Abstract: Total internal reflection (TIR) is a well-known phenomenon/property of interaction between light wave and the interface formed by two types of optical materials. This feature has found many applications in optical engineering. As the reflective index of one material is changed through a controlled approach, the TIR condition may not be maintained and the light propagation path will be changed from a TIR manner to a transmission manner, or vice verse. This allows an optical switch to be built. There are a number of different ways to alert the reflective index of the materials under consideration. In this invention, a unique combination of process and method for electro-optic material manipulation and control is used to generate a structure for alerting the reflective index of one material, which forms an interface, or multiple interfaces to function as controllable TIR interfaces. This leads to a novel solution of TIR based optical switch design. Such a switch can operate over a wide range of spectrum. A properly designed optical switch based on this invention also operates independently from wavelengths and polarization of the incident light.
Patent CA-2340382-A1 (CA)
Title: Polycrystalline diamond carbide composites
Inventor: EYRE RONALD K
IPC: C22C26/00
Filed: 2001-03-09
Abstract: Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.
Patent CA-2343630-A1 (CA)
Title: Lithographic imaging with non-ablative wet printing members
Inventor: KEARNEY FREDERICK R
IPC: G03F7/00
Filed: 2001-04-10
Abstract: Lithographic imaging using non-ablative printing members combines the benefits of simple construction, the ability to utilize traditional metal base supports, and amenability to imaging with low-power lasers that need not impart ablation-inducing energy levels. A representative printing member has a topmost layer that is ink-receptive and does not significantly absorb imaging radiation, a second layer thereunder that is hydrophilic and does absorb imaging radiation, and a metal substrate under the second layer. The printing member is selectively exposed to laser radiation in an imagewise pattern, and laser energy passes substantially unabsorbed through the first layer and is absorbed by the second layer. Heat builds up in the second layer sufficiently to detach the first layer, which is formulated to resist reattachment. But the first layer and, more significantly, the third layer act to dissipate heat from the second layer to prevent its ablation. Where the printing member has received laser exposure - that is, where of the first and second layers have been detached-remnants of the first layer are readily removed to produce a finished printing plate.
Patent CA-2344146-A1 (CA)
Inventor: FOMUKONG MUNDI
IPC: H04M3/42
Filed: 1998-09-16
Abstract: A location reporting satellite paging communication system comprising space satellites (2), ground stations (4), and call receivers (8) adapted to resolve a global position from signals transmitted from satellites (2) and earth based communication means (4). The call receiver (8) or callee in possession of the call receiver updates the paging network with a global position as requested by the paging network (6). A caller paging a subscriber or callee (8) in possession of the call receiver may request the global location of the callee. The paging network (6) could divulge or block such information from a caller depending on the requirements of the subscriber.
Patent CA-2344664-A1 (CA)
Title: Process for preparing 3-(hydroxymethyl)chromen-4-ones
Inventor: CASTELLO JOSEP M
IPC: C07B61/00
Filed: 1999-09-20
Abstract: 3-(Hydroxymethyl)chromen-4-ones of formula (I) are described and a process for preparing said compounds. The process consists in reacting the compounds of general formula (II) wherein R is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms optionally substituted by phenyl or halogen, with formaldehyde and a basic catalyst followed by dehydration in an acid medium to form 3-(hydroxymethyl)chromen-4-ones of general formula (I), wherein R is as defined for (II).
Patent CA-2344748-A1 (CA)
Title: La semelle ajustable
Inventor: BRETON DENIS
IPC: B60B33/00
Filed: 2001-04-25
Abstract: Le précis de l'invention: L'invention consiste à introduire une tige filetée modifiée avec quatre contre-écrous et deux goupilles à tous les quarante-cinq degrés de la circonférence extérieure de la semelle de la roue.      Cette roue sera approximativement de quatre pouces de diamètre. Par la modification de cette tige filetée; on peut créer un trou d'air ajustable dans la semelle. La principale caractéristique du trou d'air dans la semelle est la réduction du bruit de la roue. Une telle roue utilisée sur un chariot de bibliothèque serait la bienvenue;  car, il n'existe actuellement aucune roue silencieuse pour les chariots des commis à  la documentation et aux équipements.    Je travaille dans une bibliothèque depuis 1986 à l'Université Laval et nous recherchons une roue silencieuse; car, dans une bibliothèque le silence est d'or...
Patent CA-2346319-A1 (CA)
Inventor: YOUNGGREN BRUCE H
IPC: F16H55/56
Filed: 2001-05-04
Abstract: A one-way bearing or clutch is provided to decouple a continuously variable transmission from the final drive member during reverse torque conditions.
Patent CA-2346994-A1 (CA)
Title: Extincteur pour briquet
Inventor: SAVARD STEPHANE
IPC: A62C3/00
Filed: 2001-05-16
Abstract: Un réservoir conçue pour l'introduction d'un bricquet au centre le contenant est conçue pour retenir le briquet dans son centre grace a une ouverture qui est semblable a la forme du briquet et qui est conçue avec un léger angle qui diminue la grandeur de l'ouverture vers le fond de l'ouveture conçue avec la forme semblable au réservoir du bricquet. Deplus le réservoir e est conçue avec une partie qui s'ouvre et qui permet la libération de la poudre extinctrice, de l'eau ou tout autre élément d'extinction qui est dans  le réservoir, avantageusement l'ouverture du réservoire est fait de plusieurs petit trou afin de favorisé un étandue plus vaste de la poudre.Deplus un petit couvercle permet de refermé l'ouverture du réservoire afin de conservé ce qu i na pas été utilisé et de permettre son utilisation ultérieur.Avantageusement le couvercle est sous le réservoir et de forme plate afin de permettre a l'ensemble bricquet et extincteur de se tenir debout sans cherché a tombé. La conceptio n du chambrage au centre du haut du réservoir est sembleble a la forme du bricque t et avec un petit angle qui diminue l'ouverture vers le fond du chambrage, ce montage permet de remplacé un briquet vide mais surtout ce montage permet de prendre le bricquet directement dans ses mains pour le réchaufé si la température estsous le point de congélation car le gaz contenue dans un bricquet ne crée pas assé de presssion pour son fonctionnement si la température ambiante est sous zéro celcius.
Patent CA-2349384-A1 (CA)
Inventor: PINCHASIK GREGORY
IPC: A61F2/915
Filed: 2001-05-31
Abstract: A serpentine coiled ladder stent is provided, in which the coil is formed from a wound strip of cells, wherein the sides of the cells are serpentine. Thus, the stent is comprised of a strip helically wound into a series of coiled windings, wherein the strip is formed of at least two side bands connected to each other, for example by a series of cross struts. The cross struts may be positioned slightly askew. Each side band is formed in a serpentine pattern comprising a series of bends, wherein upon expansion of the stent, the bends of the side bands open to increase the length of each of the individual cells in the helical direction, thereby lengthening the strip in the helical direction to allow the stent to expand without any significant unwinding of the strip.
Patent CA-2353706-A1 (CA)
Inventor: COUTURE PIERRE
IPC: H02G7/20
Filed: 1999-11-26
Abstract: L'appareil de commutation est prévu pour être utilisé avec un tronçon d'une ligne de transport d'énergie électrique comportant plusieurs lignes de phase . Chacune des lignes de phase comporte plusieurs conducteurs isolés électriquement les uns des autres et branchés en parallèle. Les conducteurs de chaque ligne de phase sont court-circuités entre eux à deux extrémités du tronçon. L'appareil comprend des paires d'interrupteurs branchés en parallèl e, pour ouvrir et fermer de façon sélective les conducteurs de chaque ligne de phase, un dispositif de détection pour détecter des conditions d'opération courantes du tronçon, et un dispositif de commande pour commander les paires  d'interrupteurs en fonction des conditions d'opération courantes du tronçon.  La présente invention vise aussi une méthode de commutation.
Patent CA-2355024-A1 (CA)
Title: Air blast duct for cleaning axial separator
Inventor: SHEIDLER ALAN DAVID
IPC: A01F7/06
Filed: 2001-08-14
Abstract: Ductwork directing air from a combine cooling fan to the top of a separator unit, the duct work extending in an arc between its inlet and a flared outlet, and includes a neck portion that hinders air within the duct work from swirling upward in that location.
Patent CA-2355477-A1 (CA)
Title: Low profile mounting method for low profile balloon expandable stents
Inventor: LORENZO JUAN A
IPC: A61F2/91
Filed: 2001-08-21
Abstract: A process is disclosed for eliminating balloon overhang beyond the ends of the stent. The edge of the cylindrical portion of the balloon is marked to allow exact adjustment of the stent location and length to eliminate balloon overhang. A well-performed balloon folding process will maintain the position of the edge mark. Once the marked balloon has been attached to the catheter shaft and then folded, the second mounting step of the process of the present invention can begin. The present invention apparatus for stent mounting has the capability to grab the end struts of the stent. Once the stent has been grabbed, the apparatus allows the stent to be precisely moved longitudinally with respect to the balloon. The apparatus then can be used to stretch the stent by holding one end fixed and pulling in the opposite direction on the other grabbed stent end. The stent can now be crimped in place with the stent ends exactly matched to the balloon edges thus eliminating balloon overhang. The final step in the present invention process is to nest the stent onto the balloon. The preferred embodiment of this step has the mounted stent slid into a standard crimping tube before it is compression nested. It is also envisioned that the inward pressure from the crimping apparatus would be sufficient to cause the stent to become nested into the balloon without the need for pressurizing the balloon.
Patent CA-2355531-A1 (CA)
Inventor: TAKAI HISASHI
IPC: A61F13/53
Filed: 2001-08-20
Abstract: A disposable body fluid absorbent wearing article 1 includes a liquid-pervious topsheet 2 including plastic film layer sections 6, liquid-pervious openings 31 and a first fibrous layer 13 bonded to the lower surface of the film layer sections 6. A second fibrous layer 41 forming a liquid-absorbent core 4 is contiguous to the lower surface of a first fibrous layer 13 and a third fibrous layer 42 is contiguous to the lower surface of the second fibrous layer 41. The wearing article 1 is constructed so that its Klemm' s water absorbency may progressively increase in the order of the first fibrous layer 13, the second fibrous layer 41 and the third fibrous layer 42.
Patent CA-2355585-A1 (CA)
Inventor: BOISCLAIR MATHIEU
IPC: G06F17/30
Filed: 2001-08-20
Abstract: This invention provides a system and method that enable wired and wireless computing device users to create, access and share geographical positioning data and related information preferably in real time. It allows for the creation, storage, access, transmission and management of geographical positioning data determined by G PS (or any other known method) coupled with other data such as text, images, audio and video which provides information, products and services relating to the said geographical positioning data. In a preferred embodiment, the system comprises a wireless positioning system and a wireless two-way data communication between a portable device and a network server. Said system and method allow users to integrate  the use of location bookmarks in various applications.
Patent CA-2356463-A1 (CA)
Title: Apparatus for laying pipeline
Inventor: MCIVOR GARRY
IPC: F16L1/036
Filed: 2001-08-24
Abstract: An apparatus for producing a pipeline includes a plurality of vehicles for straddling a ditch. Al of the vehicles are carried by wide, relatively soft tires for minimizing damage to the soil surface. A first vehicle receives, aligns and maintains sections of pipe in position over a trench while effecting a first weld.  Additional welding of the joints between pipe sections is effected in successive vehicles, and the weld joint is inspected and then coated with plastic. Finally, the pipeline is deposited in the trench, and the latter is backfilled by the last vehicle in the train of vehicles.
Patent CA-2357303-A1 (CA)
Title: Gripper plug for hand strapping tool
Inventor: CHEUNG NELSON
IPC: B65B13/22
Filed: 2001-09-05
Abstract: A hand strapping tool has a lower gripper member incorporated therein which comprises an upstanding or up- wardly projecting lip portion or member which is integrally formed upon the upper surface portion of the lower gripper member at an elevational level above the upper crest por- tions of lower gripper member teeth so as to inherently de- fine a space between the upwardly projecting teeth of the lower gripper member and the undersurface portion of the lower end portion of the overlapped end portions of the strapping material when the upper tensioning wheel is re- tracted away from its engaged position with the lower grip- per member. In this manner, the hand strapping tool, and more particularly, the base member and the lower gripper member mounted thereon, can be easily and readily released and removed from its engaged position with the article or package being strapped as well as with respect to the over- lapped end portions of the strapping material. Still fur- ther, should the lip portion of the lower gripper member become eroded or worn, the lower gripper member can be simp- ly removed and replaced as a result of a friction fit mounting within the base member of the hand strapping tool.
Patent CA-2358654-A1 (CA)
Title: System and method for interfacing with multiple production scanners
Inventor: HANSEN DAVID R
IPC: H04N1/32
Filed: 2001-10-10
Abstract: A system and method for interfacing with production scanners is disclosed. A driver is provided which enables real-time communications between a scanning application and scanner devices. The driver includes an application program interface which is coupled with one or more personality modules, one for each scanner device. The personality module facilitates the command and control of a particular scanner device. The application program interface can communicate with more than one personality module at any given time to enable parallel simultaneous operation of multiple scanner devices. The driver delivers resultant image data from the scans to a commonly accessible buffer where the scanning application can asynchronously retrieve it.
Patent CA-2362645-A1 (CA)
Title: Method of inverse multiplexing for atm
Inventor: COUNTERMAN RAYMOND C
IPC: H04Q11/04
Filed: 2000-02-07
Abstract: A method for flexible inverse multiplexing for ATM and for link grouping (106) of communication links (103, 104, 105) with different transmission rates and delay. The method of the present invention supports links which use a portion of the link bandwidth for one QoS objective (e.g., low delay) and another portion for another QoS objective (e.g., low cell loss). The method involves servicing each of a number of multiplexed flows (300) with a predetermined number of cells. Cells (309) are assigned to each flow (302, 304, 306) during a number of cycles which make up an ATM frame. The number of cells assigned to each flow during each cycle is dynamically adjusted based upon the requirements of each flow, and may be different for each flow. The number of cells assigned to each flow during each cycle may either be fixed, or may vary from cycle to cycle.