baber/WOPTO huggingface dataset:
Patent CA-2274466-A1 (CA)
Inventor: RASPANTI GIUSEPPE
IPC: C08F2/00
Filed: 1997-07-29
Abstract: L'invention concerne des agents d'accumulation qui comprennent un condensat sélectionné parmi un aldéhyde, un composé phénolé et un acide carboxylique aromatique, hydroxy-substitué sur le noyau aromatique. Ces produits sont particulièrement efficaces pour réduire ou supprimer la formation d'accumulation lors de la polymérisation du chlorure de vinyle ou de l'acétate de vinyle, d'autres substances copolymérisables pouvant être éventuellement présentes. L'invention traite aussi de compositions à base des agents susmentionnés, de leur utilisation comme agents d'accumulation, de procédés pour leurs préparations et des produits obtenus à partir de ces derniers. L'invention a aussi pour objet les procédés de polymérisation effectués dans les réacteurs dont les parois intérieures sont recouvertes de ces agents et les polymères obtenus à partir de ces procédés.
Patent CA-2281946-A1 (CA)
Title: Pharmaceutical formulations containing poorly soluble drug substances
Inventor: FRANSON NANCY M
IPC: A61K47/38
Filed: 1998-02-27
Abstract: Pharmaceuticals formulations of poorly soluble drug substances in the form of:  concentrated solutions for filling soft gelatin capsules;  solid dispersions and suspensions for filling hard gelatin capsules are provided. The solvent system used includes xylitol, dicalcium phosphate dihydrate, lactose monohydrate, microcrystalline cellulose, propylene glycol and NaOH.
Patent CA-2283231-A1 (CA)
Title: Adenovirus vectors containing heterologous transcription regulatory elements and methods of using same
Inventor: YU DE-CHAO
IPC: A61K47/48
Filed: 1998-03-03
Abstract: Replication-competent adenovirus vectors specific for target cells and methods of use of such viruses are provided. These adenoviruses comprise a first adenoviral gene under control of a cell specific heterologous (i.e., non-adenoviral) transcriptional regulatory element (TRE) and at least a second gene under control of a second heterologous TRE, where the heterologous TREs are different from each other in polynucleotide sequence but functional in the same cell. The adenoviral gene can be, for example, a gene required for adenoviral replication.  The second gene can be, for example, a second adenoviral gene or a transgene, such as a gene which can contribute to cytotoxicity in the target cell. Adenoviral replication can be restricted to target cells in which the heterologous TREs are functional and thus, the adenovirus vectors can provide selective cytotoxicity to the target cells, particularly neoplastic cells.
Patent CA-2283451-A1 (CA)
Inventor: HAAS DAVID J
IPC: B42D15/10
Filed: 1998-03-03
Abstract: A game card (10) having a hidden game image thereon that is developed over a predetermined period of time. The game card includes a front part (12) and a rear part (14) having a migrating ink (44) pattern layer overlaying a rear support member to form a game image (44). A non-migrating printed pattern layer (38) overlays the rear support member to form a confusion pattern to hide the image. The front part includes a front support layer (30) having an adhesive layer (32) on one side and a front ink display surface on the other side. The opaque adhesive layer (32) is capable of causing the migrating ink pattern to migrate upon contact therewith. Thus when the front part is contacted with the rear part by applying the adhesive layer onto the ink pattern layer, through the adhesive layer to the front ink display surface for viewing the game indicia (44). The game image (38) is capable of informing the user whether the game card is a winning card or a losing card.
Patent CA-2284332-A1 (CA)
Inventor: HONG SUNG MIN
IPC: E04C1/39
Filed: 1999-09-29
Abstract: A retaining wall block system has two types of blocks which fit together in an alternating arrangement. The primary block has a groove in each of its left and right sides and the secondary block has a rib in each of its left and right sides which interfits with the grooves of the primary block. The secondary blocks are shallower than the primary blocks and, when the blocks are connected together, the faces of the secondary blocks are recessed relative to the faces of the primary blocks.
Patent CA-2285093-A1 (CA)
Title: Method, system and devices for authenticating persons
Inventor: RITTER RUDOLF
IPC: G07C9/00
Filed: 1997-11-07
Abstract: The invention concerns a method, system and devices for authenticating a user or group of users of a telecommunication transmitting apparatus, which consists in collecting the user's biometric codes, updated in a point of presence and stored in a biometric server as well as on personal SIM cards. The authentication is carried out by comparing current biometric codes with the biometric codes stored on the SIM  cards by means of trusted third parties (TTP), the current biometric codes being retrieved from current video data transmitted by an integrated video detector to a telecommunication transmitting apparatus or an apparatus external thereto. Depending on the outcome of the authentication, the use of the telecommunication transmitting apparatus can be authorised or prohibited, or the result can be transmitted to an external protected device or still to an intermediate service supplier who, in turn, can respectively grant or deny access to the device and to the services.
Patent CA-2285775-A1 (CA)
Inventor: HOLLINGSWORTH GARY R
IPC: B42D13/00
Filed: 1999-10-08
Abstract: Discloses sheet of printable media, such as paper, of a special format for printing, preferably by computer, images (such as charts) which are too large to fit on conventional sized sheets of printed paper, and a method for printing such images. The images are printed in sections onto standard sized paper sheets segmented into a retained portion and a removable portion with a glue strip along one side of the retained portion. The sections of the image are printed on the sheet to predetermined margins extending parallel to the sheet edges. The printing may include inconspicuous marks along a registration boundary to facilitate registration of a pair of sheets. The removable portion is separated from the sheet along a segmentation line that coextends with a registration boundary and two sheets with adjacent portions of an image are overlapped until their portions of the image are in register to present a continuous image without gap or overlap. The glue strip on one is sheet activated to glue the sheets together in register. Optionally the sheets include pre-scored fold lines to facilitate folding joined sheets along predetermined fold lines so that the strip formed from the sheets can fan-folded for storage in a binder.
Patent CA-2286381-A1 (CA)
Inventor: ROUYER PASCAL GERARD
IPC: F02K1/70
Filed: 1999-02-04
Abstract: The invention concerns a turbojet thrust reverser comprising downstream obstacles (2) integrated in the turbojet ejector nozzle rear wall in direct thrust position and constituting in unfolded position flux deviating obstacles providing thrust reversal. Each downstream obstacle (2) is equipped with a mobile inner panel (13), obstacle (2) and panel (13) having different angular displacements when shifting to reversal position and the displacing means (6, 7) being common to the downstream obstacle (2) and the inner panel (13)
Patent CA-2286422-A1 (CA)
Title: Multicast communication method and apparatus
Inventor: MATSUNAGA YASUHIKO
IPC: H04N7/173
Filed: 1999-10-18
Abstract: A multicast communication apparatus includes a center station and subscriber stations. Each station includes input/output ports, and a section for layer-2 bridging between the ports in a 7-layer OSI model. Each station includes a transfer control table for holding group addresses, and an address converting section. Each section also includes a section for transferring a multicast packet to corresponding ports, a section for analyzing the layer-3 message received from each port, a section for checking registration of layer-3 group addresses corresponding to subscription requests, transferring or not transferring the messages depending on whether the group addresses are registered, registering the corresponding group addresses, a section for transferring subscription state query messages and generating/outputting layer-3 multicast subscription request messages destined to acquired layer-3 group addresses, and a section for deleting a layer-3 group address from the table if the corresponding multicast subscription request message is not received for a predetermined period of time, and deleting a layer-2 group address if the corresponding layer-3 group address is not present. A multicast communication method is also disclosed.
Patent CA-2287019-A1 (CA)
Title: Ladder including storage compartments
Inventor: BROWN NORMA
IPC: E06C7/08
Filed: 1999-10-19
Abstract: A ladder includes storage areas for allowing access to an area out of reach of a user. A toolbox is removably connected at a top end of the ladder so as to be easily accessible to a user of the ladder. The ladder includes a first pair of legs and a second pair of legs extending at an adjustable angle to the first pair of legs. A plurality of steps extend between the legs of the first pair of legs and a storage compartments is positioned below each of the plurality of steps. The storage compartments are each movable between a first position completely contained beneath its respective step and a second position extending out from its respective step providing access to a storage area. Adjustable feet are positioned on a base side of each leg of the ladder. The adjustable feet are both angularly adjustable and height adjustable to adapt the ladder to the terrain on which it is to stand. A pressure sensitive alarm is positioned to generate an audible alarm when a user applies pressure to the bottom step. A retaining device is also provided adjacent the work area for retaining a tool or supply necessary for the user in an easily accessible location. Alternatively, an alternate workpiece such as a paint tray may be releasably connected at the position of the toolbox.
Patent CA-2290085-A1 (CA)
Inventor: BERTO JOSEPH J
IPC: E04H17/10
Filed: 1999-11-16
Abstract: A fence rail holder for connection to conventional metal fence posts having a generally T-shaped cross section is provided which allows PVC fence rails to be connected to metal fence posts. The fence rail holder detachably mounts on a fence post using at least one clip which attaches to the T-shaped fence post.  Openings at opposite side surfaces of the fence rail holder receive and support the fence rails. The fencing system allows the addition of a very visible, white PVC or other rail to a conventional barbed wire or wire mesh fence. The fencing system also includes wire support members which allow electric wire or other wire to be easily connected to a PVC fence.
Patent CA-2290139-A1 (CA)
Title: Revetements de circulation ou elements connexes reflechissants, et composition correspondante
Inventor: BENSE PIERRE
IPC: C04B28/02
Filed: 1999-11-17
Abstract: L'invention concerne des revêtements pour voies de circulation et des éléments de sécurité et/ou de signalisation connexes à propriétés réfléchissantes renforcées, comprenant 10 à 80 % en poids de débris de verre lesquels contiennent au moins 10 % en poids de débris de verre essentiellement réfléchissants de dimension inférieure à 20 mm.  Elle concerne également une composition pour de tels revêtements de voies de circulation ou éléments connexes.  L'invention s'applique plus particulièrement à l'élaboration de voies d e circulation telles que routes, pistes cyclables, voies piétonnières, etc. ou  éléments connexes tels que glissières de sécurité en béton, bordures de trottoirs, bornes, etc.
Patent CA-2291699-A1 (CA)
Title: Syndiotactic vinylaromatic polymerization using multiple reactors in series
Inventor: BEAUDOIN DANIEL A
IPC: C08F2/00
Filed: 1998-08-13
Abstract: A method for making a syndiotactic vinylaromatic polymer. The method includes mixing a first amount of a vinylaromatic monomer with a catalyst in a first back-mixed reaction zone under polymerization conditions such that the vinylaromatic monomer polymerizes to a conversion of from 60 to 85 percent to form a polymer-containing mixture. The polymer-containing mixture is passed to at least one other back-mixed reaction zone where it contacts a second amount of the vinylaromatic monomer under polymerization conditions such that the syndiotatic vinylaromatic polymer is formed.
Patent CA-2293868-A1 (CA)
Title: Method and novel composition board products
Inventor: CAMPBELL CRAIG C
IPC: C08L97/02
Filed: 1999-12-29
Abstract: A process for the preparation of composition board, particleboard, fiberboard, waferboard and oriented strandboard as well as new and useful products thereof are provided for by the separation of one portion of the solid constituents of the composition board and the separate blending of that portion with adhesive before combining and mixing that portion with the remaining solid constituents of the composition board product. The method and product is particularly adapted to the use of fines as the one portion of the solid component board of composition board and utilizing the pre-coated fines as an adhesive carrier in the final step of mixing or blending of the fines with the remaining composition board components. The novel process and resulting products contemplate the separation of the solid components of the composition board products by particle size so that particles of 10 to 20 mesh, 20 to 40 mesh and 40 mesh and smaller are first separated from the remaining components and then the smallest component is judiciously coated with an adhesive to function as an adhesive carrier when mixed with the remaining solid components of composition board. The novel products of the invention include fines as adhesive nuclei for binding the larger components of the composition board together and produce a more uniform, cohesive and novel composition board product.
Patent CA-2294122-A1 (CA)
Inventor: LLOYD DAVID JAMES
IPC: C22F1/05
Filed: 1998-06-18
Abstract: A process of producing aluminum sheet articles made of 6000 or 2000 series aluminum alloy suitable for manufacture into automotive parts. The process comprises direct chill casting the alloy to produce a cast ingot, scalping the cast ingot to form a scalped ingot, homogenizing the scalped ingot at a temperature between 480 and 580 ~C for less than 48 hours to form an homogenized ingot, hot rolling the homogenized ingot to an intermediate gauge to form an article of intermediate thickness, and cold rolling the article of intermediate thickness to final gauge, wherein the cold rolling reduces the thickness of the intermediate sheet article by an amount in the range of 15 to 40 % to the final gauge. By limiting the amount of reduction brought about by cold rolling, roping effects exhibited in the fimal product in T4 temper (normally following solutionizing and pre-aging) can be reduced or eliminated.  In fact, the cold rolling step can be eliminated entirely, if a suitable reduction of sheet thickness can be achieved by hot rolling alone.
Patent CA-2295299-A1 (CA)
Inventor: VERDEL ANATOLY
IPC: B32B27/08
Filed: 1998-07-07
Abstract: In order to provide a liner which can be used in place of existing type liners used in a closure for a container, a multiple layer liner sheet is coextruded in a manner wherein the outer layers are skin layers formed of a gas permeable material. These layers enclose a gas barrier layer and a foamed layer which respectively prevent the invasion of oxygen from the ambient atmosphere and remove oxygen from the head space to safeguard the contents of the container. The foamed layer provides the liner with the required resiliency, provides space for the inclusion of an adequate amount of oxygen scavenging material, and also provides a cellular structure which allows the gas molecules the freedom to move and quickly come into contact with the oxygen scavenging material. As the gas barrier layer is formed of a material which does not readily become permanently attached to the material from which the foam layer and skin layers are formed, tie layers of adhesive are formed on either side of the gas barrier layer to ensure integrity when the coextruded sheet is formed into individual liners.
Patent CA-2297653-A1 (CA)
Title: Appareil et procede pour couper un anneau de valvule cardiaque
Inventor: HAMBLIN JAMES HENRY JR
IPC: A61B17/32
Filed: 1999-05-13
Abstract: On décrit un appareil et un procédé pour couper un anneau de valvule cardiaque. L'appareil inclut un actionneur et une plaque d'appui couplée à l'actionneur. L'appareil inclut également un organe de coupe d'anneau couplé de manière mobile à l'actionneur. L'organe de coupe d'anneau peut ainsi s'opposer à la plaque d'appui ou aller à son contact. Le procédé consiste à positionner la plaque d'appui à proximité du tissu de la valvule cardiaque à extraire. Un organe de coupe d'anneau est ainsi positionné à proximité du tissu de la valvule cardiaque faisant face à la plaque d'appui. L'organe de coupe d'anneau est placé en opposition à la plaque d'appui pour couper le tissu de la valvule cardiaque et former un anneau de valvule cardiaque. Le tissu de la valvule cardiaque est ensuite extraite.
Patent CA-2302032-A1 (CA)
Inventor: CHAIKOWSKY PETER
IPC: B27B27/08
Filed: 2000-03-22
Abstract: In accordance with the present invention, an improved miter saw is employed. The miter saw includes a base assembly, a rotatable table rotatably connected to the base assembly, the table having a table plane, a fence connected to the base assembly and having a fence plane, a saw assembly including a motor and a blade driven by the motor, the blade having a radius and a blade center, and a pivot arm pivotally attached to the table and pivotally supporting the saw assembly about a first axis substantially parallel to the table plane, allowing a user to plunge the blade below the table plane, wherein the distance between the first axis and the table plane is about 0.472 times the radius. Also, the distance between the first axis and the fence plane is about 1.45 times the radius, and the distance between the first axis and the blade center is about 1.882 times the radius. In addition, the distance between the blade center and the table plane is about 0.57 times the radius when the blade is plunged below the table plane.
Patent CA-2303012-A1 (CA)
Inventor: BLOCK DAVID L
IPC: G07B17/00
Filed: 1998-09-22
Abstract: A mailing label and system and method for preparing the same is provided. The mailing labels are provided on a continuous perforated strip (101), where the perforations (105) define unitary fields of labels (107), including at least a label for an intended recipient's address and a label for bearing a postal service approved postage indicia, to be used on a single item to be mailed.  The strip is adapted for use with a computer driven printer (206) capable of printing the recipient's address, the postage indicia and other data relating to the item to be mailed on the labels within a given unitary field. The system and method according to the invention provide for the ability to prepare the aforementioned mailing labels effectively combining the functions of a postage meter with a system for preparing mailing labels.
Patent CA-2304243-A1 (CA)
Title: Orthodontic bracket
Inventor: VOUDOURIS JOHN C
IPC: A61C7/14
Filed: 1997-11-12
Abstract: In one embodiment, a pre-engaging orthodontic bracket includes a body having a lingual surface for attachment to a tooth, a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings. The gingival and occlusal tie wings project from a labial surface of the body. An archwire slot extends mesiodistally across the body and between the gingival and occlusal tie wings at opposed mesial and distal sides of the body to accommodate an archwire. A pivot pin extends between a pair of the tie wings at opposed mesial and distal sides of the body. A shutter is moveable relative to the body between an open position in which placement and removal of an archwire into the archwire slot is facilitated and a closed position in which placement and removal of an archwire into the archwire slot is inhibited.
Patent CA-2305989-A1 (CA)
Inventor: STEINKE PAUL D
IPC: H04M19/00
Filed: 2000-04-18
Abstract: A circuit and supplemental power source connection scheme for a telecommunications modem transmission link are described. The supplemental power source is connectable at any point along a telecommunications wire, including the terminals of repeaters and remote terminals. The combiner circuit includes a diode bridge for ensuring the proper connection of externally connected high voltage power to internal circuitry of the power combiner. The combiner also includes a line polarity matching circuit that automatically configures to signally connect internal positive and negative voltage signals to corresponding positive and negative external signal lines on a telecommunications modem transmission link.
Patent CA-2306722-A1 (CA)
Inventor: SCHMIEDEL PETER
IPC: C11D1/83
Filed: 2000-04-27
Abstract: Detergent tablets containing 0.1 to 20% by weight of one or more binder compounds have advantageous performance properties, such as relatively high abrasion resistance and strength. The binder compounds contain 10 to 99% by weight of one or more carrier materials with an oil adsorption capacity of more than 20 g per 100 g and 1 to 90% by weight of one or more non-surfactant liquid binders.
Patent CA-2309148-A1 (CA)
Title: Procede et systeme de verification de signature numerique
Inventor: CHAI TOSHIAKI
IPC: G06T7/00
Filed: 1998-11-04
Abstract: L'invention concerne un procédé de vérification d'une signature numérique correctement tout en prenant en compte les variations individuelles de signature, et consistant à capturer des informations sous forme de chaîne de caractères manuscrits, à comparer les informations aux données de signature enregistrées préétablies et à diviser les informations en une partie pouvant être reconnue en tant que signature authentique, une partie intermédiaire ne pouvant être reconnue comme étant une signature authentique et donnant lieu à une demande pour une nouvelle signature et une partie estimée ne pas être une signature authentique sur la base de la répartition de l'erreur accumulée entre les données de signature enregistrées et les données de signature, la partie pouvant être reconnue comme étant une signature authentique est élargie lorsque la répartition de l'erreur accumulée est étendue sinon elle est rendue plus étroite. La partie intermédiaire donnant lieu à une demande de nouvelle signature est élargie lorsque la répartition d'erreur accumulée est étendue, autrement elle est rendue plus étroite.
Patent CA-2309211-A1 (CA)
Title: Chromate-free, one-part, non-curing corrosion inhibitive sealant with resistance to aviation fuel
Inventor: REYES ALFREDO JR
IPC: C09K3/10
Filed: 1998-11-06
Abstract: A non-curing sealant composition includes a monoepoxy compound, a polysulfide, and a tertiary amine catalyst, and optionally a liquid polythioether polymer having a functionality between about 2 and about 3. The composition is substantially free of chromates.
Patent CA-2311689-A1 (CA)
Title: Process for the preparation of a beer-type beverage
Inventor: VAN GORKUM CHRISTIAAN JOHANNA
IPC: C12C7/20
Filed: 2000-06-15
Abstract: The present invention relates to a process for the preparation of alcoholic beverages, specifically a beer-type beverage. The process is characterized in that the malting step is completely abolished. In the disclosed process a suitable protein composition and a glucose syrup are separately prepared and the mixture thereof together with hop or hop extracts and yeast is directly fermented. The process is economical, fast and reliable and results in a good tasting beer-type beverage having a constant quality.