baber/WOPTO huggingface dataset:
Patent CA-2235645-A1 (CA)
Title: Apparatus for controlled thermal treatment of tissue
Inventor: SAADAT VAHID
IPC: A61F2/958
Filed: 1998-04-23
Abstract: An apparatus for treating body tissue using controlled application of heat includes an catheter having an expandable device defining a fluid reservoir about the distal end of the catheter. Fluid is provided to the fluid reservoir through a fluid supply conduit, and fluid drains from the fluid reservoir via a fluid drainage conduit. The apparatus includes a first pressure control valve that controls the outflow of fluid through the fluid drainage conduit, so that fluid pressure within the fluid reservoir is maintained within a desired range. The apparatus may also include a second pressure control valve that drains the fluid reservoir in case of an overpressure, such as may occur upon failure of the first pressure control valve. The apparatus may also include an electrical heating element disposed at the distal end of the catheter within the fluid reservoir, with current flow through heating element controlled by simple temperature switches that are also disposed at the distal end of the catheter within the fluid reservoir.
Patent CA-2235881-A1 (CA)
Title: A method of forming a light-weight, fiber-reinforced thermoplastic resin product and a light-weight molded product
Inventor: WADA KAORU
IPC: B29C45/56
Filed: 1997-02-13
Abstract: The method of forming a light-weight, fiber-reinforced, particularly glass fiber-reinforced-thermoplastic resin product includes the steps of melting and mixing thermoplastic resin pellets containing parallely oriented fibers 2-100 mm long, injecting the melted resin into a cavity which is closed so that its volume is smaller than that of the final molded product, and, before or after the resin injection is completed, opening the cavity until its volume is equal to that of the final molded product. Unlike the conventional injection-molded products, this product does not require a foaming agent and, if it uses any, requires only a small amount of foaming agent. The product thus formed is light in weight and has fibers uniformly entangled inside, providing an excellent appearance of the surface. Further a skin layer is formed over the surface. These features combined with the reinforcement by the glass fibers offer high strength and high stiffness.
Patent CA-2238158-A1 (CA)
Inventor: YANG BARRY LEE-MEAN
IPC: C23C4/12
Filed: 1998-05-21
Abstract: A nozzle-injector was designed and fabricated for plasma deposition of thin-film coatings using a wall-stabilized arc torch as the plasma generator. The design of the nozzle-injector controls the injection, ionization, and reaction of the reagents, and these functions, in turn, determine the coating deposition rate, coating area, coating composition, and coating quality.
Patent CA-2239300-A1 (CA)
Inventor: FINN LARRY JAMES
IPC: B01D53/85
Filed: 1997-01-23
Abstract: An odor control system consisting of a cylindrical bio-scrubber (20) packed with means providing an extensive surface area over which licquid media is caused to cascade, an oxidation pond (22) containing selected microorganism in a fluid media, and means (25) for introducing gases to be treated into the bio-scrubber (20) while concurrently causing microbial-impregnated fluid from the oxidation pond (22) to flow through and into contact with effluent gases passing through the bio-scrubber (20), thereby to effect transport of gases to the oxidation pond (22) where volatile organic compounds are metabolically destroyed. When necessary to achieve optimum odor reduction a further element can be added to the overall combination in the form of a biofilter (30) through which gases emanating from the bio-scrubber (30) are passed before their release to the atmosphere.
Patent CA-2243017-A1 (CA)
Inventor: GEMAR LESLIE J
IPC: A01D65/00
Filed: 1998-07-13
Abstract: A grain stalk lifter attached to a conventional combine for use with grain stalks which are lying down.  The grain stalk lifter includes a body having an upper lifting surface extending from a forward end upwards to a rear position above the cutting blades of the combine and further having a forward end provided with a skid for sliding on the ground surface.  The body is connected through a spring to the blade guards of the combine to allow the skid to resiliently move upwards from the ground surface.
Patent CA-2243858-A1 (CA)
Title: Structure interferometrique integree
Inventor: JANZ CHRISTOPHER
IPC: G02F1/35
Filed: 1998-09-04
Abstract: L'invention se rapporte à des structures interférométriques intégrées, notamment pour convertisseurs de longueur d'onde de signaux optiques. Une première et une seconde branche de la structures, comportant au moins un premier amplificateur optique semi-conducteur (OA1), sont couplées à des amplificateurs optiques semi-conducteurs périphériques d'entrée (OA4, OA5) et/ou de sortie (OA3). La structure est caractérisée en ce qu'elle comporte une section d'atténuation (10) entre la sortie d'au moins un amplificateur (OA1) d'une des branches et l'entrée de l'amplificateur périphérique de sortie (OA3) et/ou en ce que la longueur du guide d'onde d'au moins un amplificateur périphérique (OA3, OA4, OA5) est inférieure à 300.mu.m. Utilisation dans le domaine des télécommunications, en particulier pour le routage de signaux.
Patent CA-2244339-A1 (CA)
Inventor: BLOCK MARC G
IPC: A47B57/54
Filed: 1998-09-15
Abstract: A shelving system is provided which includes a polygonal shelf assembly, shelf supporting assemblies and post. The polygonal shelf assembly includes at least three bracket receiving sections. At least three shelf supporting assemblies are provided for supporting the polygonal shelf assembly. At least three posts are provided for releasably coupling to the at least three shelf supporting assemblies for supporting a polygonal shelf assembly. Each of the shelf supporting assemblies includes a collar and a support bracket. The support brackets have a shelf receiving section. When assembled, each of the collars are frictionally coupled to the at least three posts and each of the support brackets are frictionally engaged to the collars. The at least three bracket receiving sections of the polygonal shelf assemblies are then releasably coupled to the shelf receiving sections of the support brackets to form a shelving system that may be easily assembled and disassembled.
Patent CA-2244440-A1 (CA)
Title: Work head for shaping machine
Inventor: DOMKEN IWAN
IPC: B23B31/12
Filed: 1998-07-30
Abstract: A work head is claimed for a machine for shaping objects, incorporating some pinching elements (11) activated by a control component (20) mounted to slide coaxially inside the body (10) of the head. The control component (20) is hollow in order to allow the passage of a tube or object to be shaped. The pinching elements (11) are of a single piece made up of a pinching arm (12) and a control arm (14).
Patent CA-2244485-A1 (CA)
Inventor: PRECETTI MASSIMO
IPC: B65F3/02
Filed: 1998-08-04
Abstract: A suction system for urban wastes and for recyclable materials comprising a motorized transport means (10) suitable to receive urban wastes and/or recyclable materials placed in a container (36) or left on the ground, wherein said transport means (10) is provided with a sucking tube (15, 17, 18, 23) which can be moved in order to suck and/or which can be inserted by means of actuators (20, 25) inside an opening (30) formed in an underground container (36), closing means (27) are provided for the opening (30), said means being provided with an opening (35) of predetermined size.      Preferably, said closing means comprise a sliding turret (27) which can be moved when the sucking tube is activated.
Patent CA-2244922-A1 (CA)
Inventor: BENSON GERALD M
IPC: E01F9/619
Filed: 1997-01-16
Abstract: A dew-resistant retroreflective traffic sign having an attached, front-facing glass plate. The glass plate has a textured surface exposed to the air. The textured surface imparts anti-dew properties to the sign. A method of making the dew-resistant traffic sign is also described.
Patent CA-2244990-A1 (CA)
Title: A power tool having interchangeable tool head
Inventor: BONE DANIEL
IPC: B25F3/00
Filed: 1998-08-12
Abstract: A power tool comprises a body (14) having a motor (22) with an output. A detachable tool head (50) is engageable with the motor output wherein the motor output has a first engagement means (32) for complimentary engagement with a second engagement means (62) on the tool head drive. The first engagement means (32) is recessed within the body (14) and accessible through an aperture (44) therein. And the second engagement means (62) is recessed within the tool head (52) and accessible through a second aperture therewithin.
Patent CA-2248513-A1 (CA)
Inventor: LACOURSIERE YVES
IPC: F26B23/00
Filed: 1998-09-25
Abstract: Notre procédé est concu pour gérer et redistribuer l'énergie des évacuations des séchoirs à bois. Notre procédé gère l'énergie contenue dans l'air du ou des séchoirs qui évacuent à l'atmosphère et la redirige vers le ou les séchoirs qui ont un besoin d'énergie. L'évacuation du séchoir qui est en étape de séchage est nécessaire dans l'opération de séchage du bois afin de maintenir la consigne d'humidité qui permet de sécher à la vitesse désirée. Afin que notre procédé fonctionne, il faut un minimum de 2 séchoirs qui seront reliés par des conduites de ventilation isolées et des systèmes pour diriger et transporter l'air là ou le système de gestion et de distribution le détermineront à partir du programme informatique. La pression du distributeur d'énergie sera le facteur principal de contrôle pour la gestion et la redistribution de l'énergie. Le procédé intègrera des nouveautés telles que ; - La gestion et la redistribution de l'énergie de l'air d'évacuation pour certaines étapes de séchage des autres séchoirs. - Le contrôle à la pression 0 des séchoirs par lecture de pression différentielle. - Le calcul du taux d'évaporation de l'eau du bois à partir du volume de ventilation de recirculation. - Le calcul du volume d'évacuation d'eau du séchoir à partir du volume de ventilation d'admission et d'évacuation.
Patent CA-2249080-A1 (CA)
Inventor: WINER MICHAEL J
IPC: G06F17/30
Filed: 1998-09-25
Abstract: A method for efficiently searching free space in a relational database management system. The method limits the search to a finite number of space map pages in the free space map. If the configured number of space map pages in the free space map are searched and a page with free space is not found for the row, the row is inserted on the last page, or if no space is available on the last page a new page is created and the row is inserted on the new page. New rows are then appended until some predefined amount of space is filled before a search is done again. As a result, insertion of a row into the database management system does not incur the worst-case cost of searching the entire free space map.
Patent CA-2250206-A1 (CA)
Inventor: SUSKI EDWARD D
IPC: H01P3/08
Filed: 1997-03-05
Abstract: Une carte de circuit imprimé comprend une pluralité de conducteurs (60, 62, 64) de signaux ainsi qu'une grille (20). La grille (20) présente un motif en matériau conducteur formant des structures cellulaires orientées le long d'un premier axe (Y). Le motif de la grille est configuré de manière que, lorsque les conducteurs (60, 62, 64) de signaux sont orientés parallèlement au premier axe (Y), ils recouvrent une surface sensiblement constante du matériau conducteur indépendamment de la position des conducteurs (60, 62, 64) de signaux. La capacité des conducteurs (60, 62, 64) de signaux est ainsi commandée de manière que les impédances des conducteurs (60, 62, 64) de signaux puissent être maintenues à un niveau élevé.
Patent CA-2255772-A1 (CA)
Title: Insulated conductor for high-voltage windings and a method of manufacturing the same
Inventor: LEIJON MATS
IPC: H02K15/12
Filed: 1997-05-27
Abstract: The invention relates to an insulated conductor (30) for high-voltage windings in electric machines and to a method of adapting the same. The insulated conductor comprises a number of strands (12), a first semi-conductive layer (14) surrounding the strands (12), a first insulating layer (16) surrounding the first semi-conductive layer (14) and a second semi-conductive layer (18) surrounding the first insulating layer (16), which second semi-conductive layer (18) is earthed at at least two different points along the insulated conductor (30). The electric contact in the second semi-conductive layer (18) is broken (20) between each pair of earthed points. At said breaks (20) in the second semi-conductive layer (18) a device (24, 26) is arranged to reduce amplification of the electric field strength at said breaks (20).
Patent CA-2256688-A1 (CA)
Title: Process for preparing 1,3-alkanediols
Inventor: SLAUGH LYNN HENRY
IPC: C07C45/58
Filed: 1997-05-29
Abstract: A process for preparing 1, 3-alkanediols via the hydrogenation of 3-hydroxyaikanals wherein the process comprises passing an aqueous 3-hydroxyalkanal solution to a hydrogenation zone and in contact with a fixed-bed hydrogenation catalyst under hydrogenation conditions to form an aqueous 1 3-alkanediol solution, characterized in that the aqueous 3-hydroxyalkanal solution has a 3 hydroxyalkanal concentration within the range of 0.2 to 5 wt.%.
Patent CA-2257520-A1 (CA)
Inventor: DOMINICI CARLO MARIA
IPC: G01C22/00
Filed: 1997-06-26
Abstract: An apparatus for measuring the distance covered by walking or running on foot adapted to be put within shoes or a portable case, consisting essentially of two separate, complementary electronic devices supplied by cells, one of which (slave) is able to generate signals through suitable emitting means, while the other (master) is able to receive said signals through suitable receiving means and to store and process them so as to calculate the distance covered and the average and maximum speeds, said signals being modulated and directional so that the reception is proportional to the distance between emitting and receiving means, means for displaying the processed data being further provided. The emitting unit (slave) and the receiving unit (master) are provided with automatic self-switching on/off means to avoid any control by the user and at the same time to optimize the consumption of the power supply cells.
Patent CA-2257673-A1 (CA)
Title: Soda-lime-silica glass compositions and applications
Inventor: EL KHIATI NATHALIE
IPC: C03C3/087
Filed: 1998-03-12
Abstract: The subject of the invention is a glass composition of the silica-soda-lime type, intended for the manufacture of substrates or sheets, the said glass composition having a phi coefficient of between 0.50 and 0.85 N/(mm2.° C.) and a working point of less than 1200° C.
Patent CA-2259824-A1 (CA)
Inventor: LEVY LEON M
IPC: B09B3/00
Filed: 1999-01-20
Abstract: A delivery system for dispensing controlled amounts of liquid or powder has two slidingly engaged parts which are held together as a single unit. The system is closed by pushing one of the two parts toward the other until a valve plug in the upper part of the system is received within an aperture of a valve seal membrane in the lower part of the system.      The system is opened by pulling one part of the system away from the other using the sliding engagement mews so that the valve plug exits the aperture in the valve seal membrane. Interior contoured walls prevent undesired collection of powder within the system, the relative orientation of the two parts of the system is adjustable to control the rate of flow of powder, and the system is particularly suitable for introducing powdered desiccants into medical waste containers without exposing the contents of the waste containers to the surroundings environment.
Patent CA-2260051-A1 (CA)
Title: Denture stabilizing compositions
Inventor: RAJAIAH JAYANTH
IPC: A61K6/00
Filed: 1997-07-03
Abstract: This invention relates to a denture adhesive composition comprising a lower alkyl vinyl ether-maleic acid, anhydride, or salt polymer or mixtures thereof, one or more metallic salts, nonionically associated with the lower alkyl vinyl ether-maleic acid, anhydride, or salt polymer, and at least one non-adhesive self-supporting layer. This invention may also comprise other adhesive components.
Patent CA-2261009-A1 (CA)
Title: System and controller for control and distribution of audio and video signals
Inventor: SIMPSON ALAN
IPC: H04N7/16
Filed: 1999-02-03
Abstract: The object of the invention is to provide a system and controller for distribution of audio/video signals on a pay-for-use basis, to a customer in a controlled environment such as a motel, hotel, bus station, bar or apartment building. The system includes a global authorization computer which transmits authorization to the customer over a telephone line. The customer has a telephone line/television control interface which receives the dual-tone multi-frequency authorization and allows the customer to select the authorized channel for a defined length of time. Without authorization, the telephone line/television control interface will deny the customer's attempt to tune his television to a pay-for-use channel. When the authorized time expires, the telephone line/television control interface tunes the customer's television to a non-pay-for-use channel. Additional options and embodiments are also presented.
Patent CA-2263117-A1 (CA)
Inventor: NAUD JEAN-YVES
IPC: B23D61/06
Filed: 1999-02-26
Abstract: An improved wood cutting tooth and improved circular saw for felling heads. The invention provides to a wood cutting tooth whose cutting edge has a leading section at one end and a trailing section at the opposite end to reduce wood fiber damage. The wood cutting tooth may cutting edge as described. The wood cutting tooths are mounted to the circular saw in a alternating pattern of lower facing cutting edges and upper facing cutting edges.
Patent CA-2265393-A1 (CA)
Title: Electrical system for use with ganged furniture
Inventor: GUTGSELL DAVID R
IPC: H02G3/00
Filed: 1999-03-12
Abstract: An electrical system for use with interconnected or ganged furniture includes electrical receptacles for each article of furniture and a plurality of electrical cables for connecting the receptacles. The receptacles and cables have specifically coded terminal groups and connector terminal groups that prevent interconnection of more than a specific allotted number of receptacles. An initial receptacle includes a substantially permanent power cord for plugging into a conventional wall socket. A last receptacle has only an input terminal group and a blank output. Intermediate receptacles are provided so that the total electrical system is limited to twelve sockets among the first, last and intermediate receptacles. In one embodiment, five terminal groups are provided. The receptacles are configured so that the input and output terminal groups for the receptacle are different. In this embodiment, only three electrical cable configurations are required, two having different mating terminal groups the mating ends and one having the same terminal groups at its ends.
Patent CA-2266076-A1 (CA)
Title: Bus interface control circuit
Inventor: GUSTIN JAY W
IPC: G06F13/36
Filed: 1997-09-19
Abstract: A control circuit for the interface circuit of a module of a distributed process control system permits its kernel submodule and peripheral submodule to communicate through the interface circuit notwithstanding that the structure and protocol of module BUS of the kernel submodules is incompatible with the structure and protocol of the PCI  BUS of the peripheral submodule. The control circuit includes a module BUS state machine (MBSM), a PCI target state machine (PTSM), an arbiter state machine (ARSM), and an address decode logic (ADL) circuit. In response to control signals from the kernel and peripheral submodules applied to the control circuit over their respective buses, and control signals produced by the MBSM, the PTSM, the ARSM, and the ADL circuit. Which one of the two submodules is granted access to the registers of the interface circuit is determined by the control circuit which also grants the peripheral submodule access through the interface circuit to the memory of the kernel submodule. If both submodules request access to the interface circuit at the same time the peripheral submodule has priority. The control circuit prevents either submodule from successive accesses to the interface circuit if the other submodule has a request for access pending.
Patent CA-2266645-A1 (CA)
Inventor: LAMBERT NADA
IPC: C08F20/04
Filed: 1997-08-29
Abstract: The invention concerns cross-linked copolymers with a base of non cross-linked polycarboxylic polymers, said copolymers containing at least one polycarboxylic polysaccharide. The invention also concerns a method for preparing these copolymers and their use in particular as support in pharmaceutical compositions.
Patent CA-2266658-A1 (CA)
Title: Method and system to secure services provided by telecommunications operators _
Inventor: MOULIN JEAN
IPC: H04M1/66
Filed: 1997-09-25
Abstract: The invention concerns a method and a system enabling a telecommunication operator (12) to identify rapidly and to debit in complete security the accounts of subscribers of a telephone network. The method comprises the following steps: the telecommunication operator (12) provides each of its subscribers (11) with a subscriber card (10), formatted like a credit card, personalised by specific identifiers for each subscriber and for each subscriber card; said card (10), formatted like a credit card, emits brief identifying sound signals, of the DTMF type, at least partly encrypted, varying with each operation, when it is actuated (14) by the customer (11); the sound signals are received by the microphone (17) of the handset (16) and are converted into electric signals, before being transmitted by the communication network (15) to the computer service (18) of the telecommunication operator (12); the transmitted signals are electronically processed and decrypted (24) by the computer service (18) of the telecommunication operator (12) and the data obtained after processing are compared (25) to the identification data of the subscriber and the subscriber card in the possession of the computer service (18) of the telecommunication operator.
Patent CA-2271811-A1 (CA)
Title: Surgical arm and tissue stabilizer
Inventor: SALCUDEAN SEPTIMIU E
IPC: A61B17/30
Filed: 1999-05-13
Abstract: This invention is related to a novel passive medical device that can be used in surgery to stabilize tissue for anastomosis or other surgical work, such as a camera holder or as a "third hand". In one aspect, the tissue stabilization device and surgical arm stabilizes cardiac tissue which enables coronary artery bypass grafting surgeries to proceed while the heart is beating, or during other surgical procedures that require holding or retraction of tissue and arresting blood flow. A surgical arm comprising: (a) a first hollow link; (b) a second hollow link; (c) a hollow ball joint connecting an end of the first link with an end of the second link; (d) a support mount for the first link, the ball joint and the second link; and (e) a hollow tissue stabilizer connected to an end of a hollow link opposite to the hollow link that is proximate the support mount.
Patent CA-2273703-A1 (CA)
Title: Lock cylinder
Inventor: RUPRECHT HARALD
IPC: E05B9/04
Filed: 1999-06-03
Abstract: ABSTRACT   The invention relates to a lock cylinder having a housing (2) and mounted rotatably therein a lock member (4), and having a driving shaft (9) for driving the lock member (4), characterised by a central element (17) which comprises electrical conductors passing right through the driving shaft (9) and the lock member (4) in.the form of an operative connection from one side of the cylinder to the other existing independently of operation of the lock member.   The central element (17) in the form of a rigid body is connected non-rotatably at each end (17', 17") to a respective unit carrier (12, 18), especially for electronic units.   The driving shaft (9) is arranged to be coupled via a coupling (K) with the lock member (4) in a position so that they rotate together.