baber/WOPTO huggingface dataset:
Patent CA-2195992-A1 (CA)
Title: Ball segment valve and ball segment valve arrangement
Inventor: NILSSON CURT
IPC: F16K5/06
Filed: 1997-01-24
Abstract: A ball segment valve comprise a valve housing (23) with a circular annular valve seat (28), a valve body (26) which has the shape of a spherical segment which is rotatable about an axis of rotation (49) which intersects the centre of the sphere of which the valve body constitutes a segment, a rotating spindle (41) which extends through and is mounted in one side of the valve housing, and a journal bar (43). The rotating spindle and the journal bar are interconnected by a bow (42) in order to form together with the bow a continuous rotating unit (25).   The journal bar is mounted in a cover (24) which covers a hole (64) in the other side of the valve housing, which hole is sufficiently large that the rotating unit can be introduced through the hole into its intended operating position in the valve housing and be fixed in this position by subsequent mounting of the cover.   The bow comprises a pair of legs (46, 47) which are connected to the rotating spindle and to the journal bar respectively, together with a yoke (45) connecting said legs at a distance from the axis of rotation (49), the valve body being mounted on said yoke.
Patent CA-2198969-A1 (CA)
Inventor: ORSENO GREGORY S
IPC: H01Q19/19
Filed: 1997-03-03
Abstract: An omnidirectional microwave antenna comprises a paraboloidal reflector disposed above the ground and facing downwardly with a substantially horizontal aperture and a substantially vertical axis. A vertically oriented feed horn is located below the paraboloidal reflector on the axis of the paraboloidal reflector and has a phase center located near the focal point of the paraboloidal reflector. A conical reflector extends downwardly away from the periphery of the feed horn for reflecting radiation received vertically from the paraboloidal reflector in a horizontal direction away from the conical reflector, and for reflecting horizontally received radiation vertically to the paraboloidal reflector.  A radome extends downwardly from the outer periphery of the paraboloidal reflector and includes an absorber material for absorbing radiation propagated laterally from the feed horn and the conical reflector above the aperture of the feed horn.
Patent CA-2200947-A1 (CA)
Inventor: RAMM-SCHMIDT LEIF
IPC: B01D1/22
Filed: 1995-09-26
Abstract: La présente invention concerne un échangeur thermique dans lequel la vapeur de chauffage est distribuée sur les surfaces d'échange thermique de la membrane au moyen d'un répartiteur de vapeur situé à leur extrémité. Le répartiteur de vapeur est constitué de conduits parallèles (3) servant à diriger la vapeur sur toute la largeur des surfaces. Selon la présente invention, le répartiteur de vapeur est constitué de deux éléments de paroi (1, 7) disposés face à face et fixés l'un à l'autre par un système de protubérances (2) au niveau de l'un des éléments et d'évidements (6) correspondants de l'autre élément. L'extrémité supérieure (9) de la membrane constituant la surface d'échange thermique est coincée entre les protubérances et les évidements par l'engagement des protubérances dans les évidements. Cet agencement permet de froncer la membrane, donnant ainsi une marge de dilatation au volume de vapeur délimité par la membrane. Les surfaces d'échange thermique (9) peuvent être réalisées sous forme de poches (10) dont les extrémités sont calées entre les éléments de paroi (1, 7) fixés l'un à l'autre. De la sorte, les conduits de vapeur (3) délimités par les éléments ne peuvent diriger la vapeur que vers l'intérieur des poches, et les conduits de liquide (11) ne peuvent diriger le liquide à évaporer que vers les faces externes des poches.
Patent CA-2201534-A1 (CA)
Title: Apparatus and method for fluid treatment units connected in parallel
Inventor: ELDRENKAMP DEAN A
IPC: C02F9/00
Filed: 1997-04-02
Abstract: An apparatus and method for operating a system of two or more fluid treatment units connected in parallel, which fluid treatment units need to be regenerated as they become depleted, whereby a method is provided for determining when to initiate a regeneration and which unit to regenerate as well as an apparatus for implementing the same.  The decision when to regenerate is based on the number of fluid treatment units in service and the fractional capacity of each fluid treatment unit in service. The fluid treatment selected for regeneration is the one with the least or nearly the least remaining capacity.  The apparatus comprises a plurality of fluid treatment units; control valves to selectively connect each fluid treatment unit to a source of untreated fluid, a destination for treated fluid, and a source of regenerant; and a master controller to automatically implement the method of operation by controlling the valves appropriately.
Patent CA-2201900-A1 (CA)
Inventor: PLATTS DAVID
IPC: A61B17/32
Filed: 1995-09-29
Abstract: L'invention concerne un couteau effilé et léger (figure 1) possédant une lame (28) rétractable remplaçable qui peut être bloquée soit en position fonctionnelle ou déployée (figure 3a), soit en position rétractée ou de sécurité, à l'aide d'un seul doigt d'une seule main. Le mode de réalisation en scalpel chirurgical de ce couteau, sans perte de fonction ou de maniabilité du scalpel, permet d'assurer la sécurité du personnel soignant et du personnel chargé de l'élimination des déchets médicaux. Un mode de réalisation avec rétraction automatique (figure 6a) du couteau est également décrit.
Patent CA-2202268-A1 (CA)
Title: Two-stage process for making foam mouldings from tube blanks
Inventor: SCOTT ANTHONY JOSEPH
IPC: B29C44/00
Filed: 1995-10-10
Abstract: A technique of producing polyolefin foam is described. A two-stage process is described wherein the first stage involves expanding a preformed cylindrical tube comprising a polymer, blowing agent, cross-linking agent and blowing agent activator in an enclosed cylindrical mould. The cylindrical mould constrains the expansion of the foam without the need for hydraulic rams or similar mechanical means as are found in conventional platen presses.  Following stage one, the cylindrical tubes of material are heated while unconstrained and expands symmetrically. The cylindrical tube of expanded foam material is then slit and may be cold pressed in order to form polyolefin foam blands. Variations on the cylindrical tube mould shape may be used and patterns and other features may be formed on the interior of the cylindrical mould in order to produce a product containing the imprint thereof. Polyolefin foam so produced may be used in building, packaging, clothing and similar applications.
Patent CA-2203304-A1 (CA)
Title: Molded rubber valve seal for use in predetermined type valves, such as, a check valve in a regenerative desiccant air dryer
Inventor: MITSCH MATTHEW D
IPC: F16K25/00
Filed: 1997-04-22
Abstract: A valve seal system for passageway through a valve body emerging through a first generally flat and rigid surface having a valve member including a resilient seal with generally flat exposed surface adapted to be brought into contact with the generally flat rigid surface and having a generally circular raised resilient ring portion extending from the generally flat exposed surface. The raised resilient ring portion adapted to be compressed against the generally flat rigid surface to seal the resilient seal against the generally flat rigid surface when the valve member is moved to a closed position by virtue of the raised resilient ring portion being compressed against the generally flat rigid surface.
Patent CA-2204173-A1 (CA)
Title: Device for measuring internal defects in a rail using ultrasound
Inventor: JAEGGI JEAN-PIERRE
IPC: B61K9/10
Filed: 1997-04-30
Abstract: The equipment comprises at least one ultrasound probe (15) which is subject to a pressure applied to the rail. The probe acts on the rail via a smooth band (17) of synthetic material which is permeable to ultrasound. Sprays (20) are provided to create liquid films between the probe and the band, as well as between the band and the surface of the rail. The band forms an endless loop which passes over two toothed wheels. The band is held continuously in contact with the surface of the rail.
Patent CA-2209515-A1 (CA)
Inventor: VIARD ALAIN
IPC: E21B43/38
Filed: 1997-07-07
Abstract: Installation de pompage d'un liquide provenant d'une source souterraine comprenant un puits (10) s'étendant de la surface (12) vers la source de liquide (14), le puits comportant une chambre (40) s'étendant substantiellement sur toute sa longueur, au moins un tubage (18) traversant la chambre et communiquant avec celle-ci, et un ensemble de vannes (34) destiné à mettre sélectivement la chambre en communication avec une source de gaz à une première pression (36) permettant au liquide provenant de la source d'emplir la chambre, et une source de gaz à une deuxième pression (38) supérieure à la première pression, afin de vider la chambre, le liquide étant refoulé vers une première sortie (30) par écoulement à travers le tubage, caractérisée en ce qu'elle comprend, de plus, un clapet (52) monté dans le tubage (18), et un deuxième conduit (58;70) menant à une deuxième sortie (74), le clapet étant susceptible de réagir à la densité de fluide qui l'entoure afin de pouvoir refouler un premier liquide vers la première sortie (30), un deuxième liquide, de densité plus importante, étant refoulé vers la deuxième sortie (74) par le deuxième conduit (58;70).
Patent CA-2211859-A1 (CA)
Inventor: SUZUKI KAZUYOSHI
IPC: H04L69/40
Filed: 1997-07-29
Abstract: According to a first aspect of the invention, when a first expansion unit in a computer sends data on an auxiliary bus directly to a second expansion unit, the second expansion unit sends the same data directly back to the first expansion unit.  If the data sent back are not identical to the data originally sent, the first expansion unit generates an error signal.  According to a second aspect of the invention, when a first expansion unit in a computer sends data on an auxiliary bus directly to a second expansion unit, the first expansion unit sends identical data in at least two data streams on the auxiliary bus.  If the second expansion unit does not receive identical data from all of these data streams, the second expansion unit generates an error signal.
Patent CA-2212219-A1 (CA)
Inventor: BECHERER THOMAS
IPC: B60T8/00
Filed: 1995-09-29
Abstract: L'invention concerne un procédé permettant d'obtenir des accélérations les plus élevées possibles par friction. On utilise à cet effet un nouveau procédé pour la détermination de la force longitudinale agissant sur un pneumatique ou du fléchissement élastique du pneumatique, ou de la longueur de l'aire de contact, ou encore, du rapport charge-pression. La détermination s'effectue par mesure de la déformation à la torsion entre une zone extérieure radiale de la roue, de préférence entre la zone d'épaulement et une zone s'étendant radialement vers l'intérieur, par exemple, la zone du talon du pneu ou le moyeu de la roue. Alors que, jusqu'à présent, l'exigence selon laquelle la roue devait tourner, et non pas l'unité d'évaluation, était considérée comme un empêchement pour toute mesure effectuée sur un pneumatique, l'invention tire précisément profit de cette rotation dans sa forme d'exécution préférée: un intervalle de temps déterminé s'écoule entre le passage d'un repère de l'une des zones radiales et le passage d'un repère de l'autre zone radiale par un plan de phase non rotatif qui peut être en une position quelconque. Cet intervalle de temps varie selon une dépendance reproductible vis-à-vis de la déformation à la torsion qui, de son côté, dépend de la charge de la roue dans le sens longitudinal et dans le sens vertical. Il est ainsi possible de déterminer quelles sont les relations qui s'appliquent et dans quels plans de position, et comment celles-ci peuvent être exploitées.
Patent CA-2213274-A1 (CA)
Title: Sheet material dispenser
Inventor: HALLE RAY
IPC: B65H16/02
Filed: 1997-08-18
Abstract: A sheet material dispenser for dispensing rolls aluminum coilstock. The sheet material dispenser is made from plastic and includes a front door that renders the sheet material dispenser substantially weatherproof. A rain overhang extends over the edge of the door to prevent water from entering the sheet material dispenser. A rear affixing tab allows the sheet material dispenser to be attached to a work table to facilitate working with the coilstock. The interior of the sheet material dispenser includes rollers that ease dispensing of the coilstock.
Patent CA-2214063-A1 (CA)
Inventor: OZAWA HIROYUKI
IPC: G06T15/04
Filed: 1997-08-27
Abstract: A system for reading texture data from a memory without need to use a cache unit in such a manner that the read speed is not affected by the size of the memory, wherein a memory address is supplied to a memory address comparing unit, a memory address comparing unit compares the memory address of the current pixel and the memory address of the immediately preceding adjacent pixel, the compared result being supplied as information to a compared result storing unit which stores the information. A memory accessing unit receives a memory address different from the memory address of the adjacent pixel aid reads texture data the corresponding address in a memory, the texture data being stored in a texture data storing unit. A texture data restructuring unit reads texture data from the texture data storing unit corresponding to the information read from the compared result storing unit and restructures the texture data accordingly.
Patent CA-2215653-A1 (CA)
Title: Fuel supplying device for engine
Inventor: TSUDA HIROYUKI
IPC: F02M13/08
Filed: 1997-09-15
Abstract: A fuel supplying device for an engine comprises a carburetor (1) having a mixing body (2) in which a venturi passage (3) is provided, a float chamber (4) being arranged in the mixing body (2), a liquid fuel nozzle (5) communicating with the float chamber (4), a liquid fuel nozzle outlet (6) facing the venturi passage (3). The mixing body (2) is provided with a gaseous fuel nozzle (7).      The liquid fuel nozzle outlet (6) and a gaseous fuel nozzle outlet (8) are faced to the same venturi passage (3) so as to be able to supply the alternative of a liquid fuel or a gaseous fuel.
Patent CA-2216415-A1 (CA)
Inventor: FUJII EIJI
IPC: G01R31/28
Filed: 1997-09-25
Abstract: A method for an accelerated test of semiconductor devices comprises the steps of determining a relational expression t1 = t2m between an information holding lifetime t1 at a temperature T1 and another lifetime t2 at another temperature T2, expressing the exponent m as a function of the temperature that is proportional to the Boltzmann's factor, and calculating the information holding lifetime t2 at the temperature T2 on the basis of  the information holding lifetime t1 at the temperature T1 using the relational expression.
Patent CA-2216745-A1 (CA)
Title: Improvements in or relating to fabrics
Inventor: WRIGHT GEORGE MICHAEL FERGUS
IPC: D03D15/00
Filed: 1997-09-29
Abstract: In the field of aircraft engines, it is known to provide a so-called rigid fabric barrier for containing ballistic articles such as fragments of engine components liberated by mechanical failure in the engine. However, known rigid fabrics of plain woven form suffer from high elongation per unit length. The disclosure relates to a rigid fabric (10) comprising a plurality ofelongate interstices (16) each containing one or more elongate warp yarns (15). The interstices (16) permit the warp yarns to lie in an uncrimped condition, thereby improving the elongation characteristics of the fabric (10).
Patent CA-2216943-A1 (CA)
Title: Drug release coated stent
Inventor: DING NI
IPC: A61F2/82
Filed: 1996-04-01
Abstract: The disclosure relates to a stent for implantation in a body lumen location of interest in a patient and includes a generally flexible elastic, tubular body (10) having open ends and a thin open porous sidewall structure and a relatively thin coating layer on the tubular body including a biostable elastomeric material incorporating an amount of biologically active material dispersed therein for timed delivery therefrom.
Patent CA-2218235-A1 (CA)
Title: Shingle system and fastening strip
Inventor: NICHOLSON JOSEPH R
IPC: E04D3/362
Filed: 1996-04-12
Abstract: A shingle system comprising a fastening strip (14) and a plurality of shingles (12). The fastening strip (14) includes a top flange portion (36) and a fastener portion (44). A gasket (48) is located along a bottom surface of the fastening portion (44). The plurality of shingles (12) each include top and bottom edges and opposing side edges. The bottom edge includes an underturned flange (34) for engaging the top flange portion (36) of the fastening strip (14). Overturned or underturned flanges are provided on the side edges to connect adjacent shingles along the sides. In a further embodiment, the shingles comprise first and second shingle configurations where the first shingle configuration includes side edges that are tapered and either overturned or underturned, and where the second shingle configuration includes side edges having an opposite taper to the first shingle configuration as well as an opposite flange. In a further embodiment, the shingle system further comprises a roof cap including tailing and leading edges and opposing side edges. The leading edge of the roof cap includes an underturned flange for engaging the fastening strip.
Patent CA-2218837-A1 (CA)
Inventor: KOSMATKA JOHN B
IPC: A63B69/36
Filed: 1997-10-22
Abstract: A contoured golf club face provides increased structural integrity for a given weight and size is described and shown along with a method for its design. The contoured golf club face includes a vertical stiffening region, a tapered horizontal stiffening region, four similar contoured quadrants of increasingly thinning material toward the center of each quadrant, and thickening regions at face/sole and face/crown intersection regions.  The thicknesses of adjoining regions are gradually blended to provide a smooth contoured surface. The present golf club face is light weight, is structurally resistant to impact deformation, is resistant to initial and long-term failure, has its mass center located at its sweet spot, exhibits inertial axes which are aligned with vertical and horizontal axes (i.e. primary club force directions: ball impact force and club centrifugal force directions), and produces acoustical tones.  A club incorporating the present contoured golf club face may be provide a certain first acoustical sound when used to hit a ball with a certain first specific area of the face (e.g. the sweet spot or sweet spot region) and to provide a different second acoustical sound when used to hit a ball with an area of the face other than that first area (e.g. other than the sweet spot or sweet spot region).  Thus, the present invention may be used to provide an educational tool for use in teaching and/or learning to consistently impact a ball on the optimal region of the club face.
Patent CA-2220436-A1 (CA)
Inventor: SANTHANAM MAHALINGAM
IPC: C08G63/66
Filed: 1997-11-07
Abstract: A liquid, pourable 100% active rheological additive especially useful for thickening organic compositions which in one aspect comprises an active hydrogen containing compound such as a polyol, one or more polycarboxylic acids or isocynanates, and a functional chain ending unit. The additive, which exists in a pourable, pumpable form at up to a 100% as a rheologically active composition, exhibits excellent thickening efficiency for systems including inks, epoxies, polyesters, paints, greases and other systems, including ease of dispersibility, without adversely affecting gloss. The additive may operate by both an associative and a reaction mechanism to provide rheological viscosity properties to such systems, and is also similarly useful for aqueous systems.
Patent CA-2221792-A1 (CA)
Title: Seat assembly for pedestrian operated machine
Inventor: LOCKHART THOMAS DOBBIE
IPC: B60N2/30
Filed: 1996-05-24
Abstract: A seat assembly for a pedestrian operated machine may be pivotally attached to the rear of the machine at (22) and comprise a frame (20) having a spine (30) with a spine extension (31) supporting a seat (32) on a stalk (34) supported by a wheel (26). The spine extension is movable between a retracted pedestrian operated mode and an extended ride-on mode when the seat can be pivoted from a fold-away position to a position of use. When in its extended position the spine extension allows the frame to be pivoted about a vertical axis (40).
Patent CA-2222619-A1 (CA)
Inventor: ROBY RICHARD J
IPC: G08B17/06
Filed: 1996-06-06
Abstract: A multi-signature fire detection method and apparatus, utilizing first (1) a nd second (2) detectors for detecting first and second signatures. The first (1 ) detector outputs a first signal (A) indicative of the first detected fire signature, and the second detector (2) outputs a second signal (B) indicativ e a second detected fire signature. A signal processor (3) is provided for combining the first (A) and second (B) signals using a number of correlation s, wherein outputs of the first (1) and second (2) detector means are coupled t o the signal processor (3), and the signal processor (3) compares and combines  the first (A) and second (B) signals to a first predetermined reference valu e (303), and outputs a fire condition signal if a combination of the first (A) and second (B) signals exceeds the predetermined reference value (303).</SDO AB>
Patent CA-2224039-A1 (CA)
Title: Foamy slag process using multi-circuit lance
Inventor: KIM CHUNG S
IPC: C21C5/46
Filed: 1997-12-08
Abstract: A method of improving post-combustion heat recovery in a vessel containing a charge of molten ferrous metal and slag includes the use of a lance for the introduction of oxygen gas into the charge.  The method includes blowing oxygen into the charge through at least one first nozzle of the lance for refining the molten metal into steel.  oxygen is blown through at least one second nozzle of the lance from at least one location spaced above the first nozzle at an oxygen flow rate effective to produce foamy slag in an amount for obtaining a post-combustion heat transfer efficiency of at least about 40% without appreciable overflow of the slag from the vessel. The oxygen flow rate from the second nozzle is at a minimum at about a starting point of a peak decarburization period of the charge.  Iron oxide containing pellets may also be added to the charge. In this case, the oxygen flow rate from the first nozzle may be reduced while the iron oxide containing material is being added, and the reduced oxygen flow may be replenished with an inert gas.
Patent CA-2224748-A1 (CA)
Inventor: OSAKABE YOSHIO
IPC: H04L12/28
Filed: 1997-12-12
Abstract: An Institute of Electrical and Electronic Engineers 1394 serial bus to which are connected a digital television, a digital video cassette recorder and a personal computer, and a home bus to which are connected an air conditioner, lighting and an opening and closing device, are linked using a home bus/1394 converter for transmitting control commands therebetween.   Then,  for example,  a command transmitted using an Institute of Electrical and Electronic Engineers 1394 serial bus format from the digital television to the lighting is supplied to the lighting via the home bus after conversion to the packet format for the home bus at the home bus/1394 converter.