baber/WOPTO huggingface dataset:
Patent CA-2252337-A1 (CA)
Title: Mechanical leak-proof coupling
Inventor: MUSSCHOOT ALBERT
IPC: F16L23/16
Filed: 1998-11-02
Abstract: In order to provide a leak-proof coupling for a gas-carrying pipe having two pipe sections that are relatively movable, the coupling includes a first pipe section and a second pipe section that have respective coupling ends disposed in closely spaced adjacent relation to define a gap therebetween. The first pipe section has an upstream end in communication with a source of a pressurized gas and a first coupling end remote therefrom such that the upstream end receives the pressurized gas from the source and the gas then flows through the first pipe section from the upstream end to the first coupling end for discharge therefrom. The second pipe section has a second coupling end in communication with the first coupling end and receives the pressurized gas from the first pipe section and the gas then flows through the second pipe section from the second coupling end to the downstream end for discharge therefrom. Additionally, the coupling includes structure for providing a positive pressure differential in the region of the first and second coupling ends externally of the first and second pipe sections to prevent pressurized gas from being able to escape through the gap.
Patent CA-2252993-A1 (CA)
Inventor: SAOUDI ABDELHAMID
IPC: G01T1/202
Filed: 1998-11-06
Abstract: A detector assembly for multi-modality PET/SPEC/CT scanners consists of a thin detector, on top of one or more deep detectors to detect low-energy gammas and high-energy annihilation photons. The deep detectors provides depth-of-interaction information for 511 keV detection in PET, while the thin front detector, that is essentially transparent to 511 keV and low-energy gammas, is used for detecting X-rays. Low-energy gammas can be detected by the thin detector on top and/or by the second deep detector of the assembly.
Patent CA-2253692-A1 (CA)
Title: Fastening system for attaching the free end of a cable to a drum in a counterbalancing system
Inventor: CLARK RONALD
IPC: F16G11/06
Filed: 1998-11-30
Abstract: The fastening system is used for fastening the free end of a cable to a drum of a counterbalancing system, such as the counterbalancing system of a garage door. A method for fastening the free end of a cable to a drum is also disclosed. Thisfastening system comprises a pressure screw and a threaded hole made through the central sleeve portion of the drum to receive the pressure screw. The threaded hole extends from outside the drum to a central opening of the drum through which is inserted the shaft or an interposed element, such as a bearing. The fasteningsystem also comprises a cable-receiving channel provided in the central sleeve portion. The channel has at least a portion that is aligned with the threaded hole and that is adjacent to the central opening. The channel comprises a cable entry to receive the free end of the cable and is sized to tightly hold the cable therein when the drum is mounted around the shaft or the interposed element. The cable is then pressed between the pressure screw and the shaft or the interposed element upon tightening of the screw to rigidly connect the cable by friction engagement. Thefastening system is very dependable and easy to install. It also allows an installer or a maintenance worker to cut the cables on site from a continuous cable provided on a roll.
Patent CA-2253827-A1 (CA)
Title: Coupling for corrugated tubing
Inventor: SWEENEY MICHAEL A
IPC: F16L19/03
Filed: 1997-04-24
Abstract: A coupling for connecting a distal end of a corrugated tube (14) with a fitting (16) having a forward coupling end. The coupling end includes a collet (40) receivable coaxially over the distal end of the tube and including a circumferential wall portion (42) which extends axially from a forward first end (46) to a rearward second end (48). The second end is configurated as having an outer portion and an inner portion of a diameter smaller than the outer periphery of the tube. The inner portion is configured to be receivable within the root portions of the tube for retaining the collet thereon, and presents a generally rearwardly-facing compression surface. The wall portion is longitudinally dissected through the second end thereof into at least a pair of arcuate, cantilevered segments. Each segment is resiliently yieldable for radial outward movement allowing the tube crest portions to be received through the second end of the wall portion as the collet is advanced forwardly over the distal end of the tube into retention within one of the root portions. A fastening member (80) is journaled over the collet's first end and is engageable with the coupling end of the fitting to draw the collet and the distal end of the tube toward the fitting. The fastening member has an inner radial surface extending to a rearwardly-facing shoulder portion (100) configured to abuttingly engage the outer portion of the collet's second end for urging the collet rearwardly toward the fitting.
Patent CA-2256338-A1 (CA)
Inventor: HABENICHT URSULA-FRIEDERIKE
IPC: C07K14/705
Filed: 1997-05-22
Abstract: The present invention relates to the use of peptides which are derived from zona pellucida proteins and are used for contraception, and pharmaceutical formulations which contain said peptides without said peptides having an immunogenic effect.
Patent CA-2256858-A1 (CA)
Title: Tank treatment assembly
Inventor: CHAU YIU CHAU
IPC: B01D15/00
Filed: 1998-12-22
Abstract: A tank top pretreatment unit and assembly comprises a treatment unit installed inside a water treatment tank, such as a water softener tank, and in the top of the tank for treating the water either prior to its treatment with the primary treating medium in the tank or following such treatment. The treatment unit includes a plurality of chambers which are configured to contain a finely divided water treatment medium of a different kind than the primary treatment medium. Some of the elements may be arranged in series, but many or all are arranged in parallel flow which reduces the pressure drop of the water across the treatment unit, and the inlet openings to the chambers and outlet openings from the chambers are elevationally spaced from each other and the area of the outlet openings is less than the area of the inlet openings to maximize contact and dwell time in the chambers. A housing is also disclosed which surrounds and contains some or all of the chambers to permit positioning of the treatment unit beneath the level of the primary treating medium.
Patent CA-2257172-A1 (CA)
Title: Dissolvable oxides for biological applications
Inventor: KIESVAARA JUHA
IPC: A61K9/06
Filed: 1997-05-29
Abstract: The present invention is concerned with controllably dissolvable silica-xerogels prepared via sol-gel process and their use. Specifically, the invention is concerned with a delivery device comprising controllably dissolvable silica-xerogel into which structure a biologically active agent is incorporated. The invention is further concerned with pharmaceutical preparations comprising said delivery device. Further, the invention is directed to medical devices for orthopedic and surgical purposes comprising controllably dissolvable silica-xerogels, which may further comprise a biologically active agent.
Patent CA-2257845-A1 (CA)
Title: Method of and device for suction transporting
Inventor: LITVIN SIMON
IPC: B65G53/24
Filed: 1998-03-17
Abstract: A transporting line (2) for suction transporting has an inlet (4), an outlet, and an interior (3) therebetween. Suction is applied to the transporting line (2) by a suction source (1) producing a suction force therein such that a material (6) is transported through the transporting line (2) from the inlet (4) to the outlet. The suction force is modulated with a modulator (7) by communicating the interior (3) with atmosphere through a passage (8) and periodically changing with a valve (10) an area and a shape of the passage (8) during the transporting, and also changing a frequency of the modulation in dependence on the distance between the inlet (4) of the transporting line (2) and an object surface (5) sensed by a sensor (15).
Patent CA-2258012-A1 (CA)
Title: Method and apparatus for producing shredded cheese
Inventor: GARNETT DAVID J
IPC: A23P1/00
Filed: 1996-06-14
Abstract: A method and apparatus for producing shredded food products, such as cheese, is disclosed. The apparatus of the present invention comprises a sheet former (10), a casting line (20), and a shredding assembly (40), all of which function as a single unit. The shredding assembly first slices the incoming sheet of cheese into ribbons and then cuts each of these ribbons to length.  The sheet of cheese may be sliced into ribbons by passing the cheese through a pair of rollers (51, 52) having grooves or slots machined into their surfaces, the width of the slots (55) corresponding to the desired width of the cheese ribbons. The cheese ribbons are presented to a plurality of transversely mounted elongate blades (211), each of which revolves about a common axis.  Each blade cuts off segments of desired lengths from the cheese ribbons.
Patent CA-2258940-A1 (CA)
Title: Hingeless eyeglass frame and vented eyeglass
Inventor: YEE PETER K
IPC: G02C7/10
Filed: 1997-06-27
Abstract: Disclosed is a hingeless eyeglass frame (12) designed so the entire eyeglass frame provides a medially directed force at the posterior portion of the earstems (16, 18) to increase the retentive force between the eyewear and the head. In one vented embodiment, each lens of a dual-lens eyeglass (66) is provided with a pluratlity of apertures (86) extending therethrough, at the junction between the lens (64) and the surrounding frame (70). The unitary frame or conventionally hinged frame may also have apertures (80, 82) to allow airflow for ventilation.
Patent CA-2260348-A1 (CA)
Inventor: FATNANI SANGITA
IPC: G06Q20/10
Filed: 1999-01-25
Abstract: The present invention is a method and apparatus that uses a plurality of predetermined segments to group credit applicants to evaluate each applicant's credit risk. The segments are based on at least one of reported trades, reported delinquency, bank card utilization, and length of said credit history. A score is generated for each applicant based on a unique scorecard designed for each segment. The unique scorecards allow more accurate credit risk assessment by evaluating each applicant in view of that segment's tendency to be bad credit risks.
Patent CA-2261941-A1 (CA)
Inventor: RHEE WOONZA
IPC: A61F2/92
Filed: 1995-04-03
Abstract: This invention is a medical device and a method of using it. The device is a foldable stent or stent- graft which may be delivered with (or on) a catheter or via surgical or other suitable techniques. The device is then expanded or unfolded. The expandable stent structure preferably utilizes at least one torsional member generally aligned with the longitudinal axis of the stent. The stent preferably has an undulating shape It may be helically deployed to form the generally cylindrical shape eventually deployed as the stent or it may be formed of one or more rings. The structure desirably is aligned to allow those undulating shapes in adjacent rings or turns of the helix to be in phase. The adjacent undulating shapes may be held in that phased relationship using a flexible linkage, often made of a polymeric material. The stent's configuration allows it to be folded or otherwise compressed to a very small diameter prior to deployment without changing the length of the stent. The stent is self-expanding, kink- resistant, easily bent along its longitudinal axis, does not change its length during that expansion, and is able to provide collapsible support for otherwise frangible graft material. The graft component cooperating with the stent is tubular and may be a biocompatible polymeric or collagenous material or combinations of the two which may, if desired, be reinforced with fibers. The invention involves procedures for deploying stem s or stent-grafts which have been folded, bound, or otherwise collapsed to significantly smaller diameters for insertion into a human or animal body. The deployment procedures may involve the use of an outer sleeve to maintain the stent or stent-graft at a reduced diameter or may involve a "slip-line" to hold and then to release the device.
Patent CA-2262698-A1 (CA)
Inventor: FUKUNO HIROKI
IPC: F02C7/18
Filed: 1998-06-12
Abstract: With a gas turbine systems, there is an increasing trend to use a high temperature combustion gas to enhance the operating efficiency of the gas turbine. This, however, is accompanied by the generation of cracks at an increased frequency in a base portion of the blade where thermal stress of large magnitude is likely to occur.      An object of the invention is to provide a cooled moving blade for a gas turbine which has a blade profile capable of more effectively reducing thermal stress in a blade base portion, and thus, prevent cracks from occurring.      A moving blade (1) is fixedly secured to a platform (2).      On the other hand, a cooling air passage (3) is formed in a serpentine pattern inside of the blade for cooling with cooling air. The moving blade (1) has a base portion of a profile formed by an elliptically curved surface (11) and a rectilinear surface portion (12), wherein the rectilinear surface portion (12) is provided at a hub portion of the blade where thermal stress is large. In the conventional moving blade, the base portion is formed as an elliptic fillet R presenting a arcuate profile protruding convexly inward. The cross-sectional area of the blade is increased by providing the rectilinear surface portion (12). The heat capacity is increased compared with the conventional blade, due to the increased cross-sectional area of the blade. This in turn results in a decrease of the temperature difference due to the thermal stress. Thus, the thermal stress can be suppressed more effectively than with the conventional blade.
Patent CA-2263029-A1 (CA)
Title: Cooling structure around l-shaped vertical type gas turbine output shaft
Inventor: UEMATSU KAZUO
IPC: F02C7/06
Filed: 1999-02-25
Abstract: A cooling structure around the output shaft of an L-shaped vertical gas turbine, for cooling the output shaft effectively by a natural ventilation.      A gas generator 5 is arranged horizontally whereas an output turbine 1 is arranged vertically, and a pump or the like is driven by an output shaft 3. A cylinder 20 is fitted in a space 12 between the output shaft 3 and a cylindrical easing 13 and is fixed at a cylindrical flange 20a.      Cooling air 30 is caused to flow upward from between the cylinder 20 and the output shaft 3 by the ejector effect of an exhaust gas from below a baseplate 8 and by the vacuum in the casing and then to flow downward from the upper end of the cylinder 20 between the cylinder 20 and the cylindrical casing 13, so that it flows out from the lower portion into the package. The output shaft of the L-shaped vertical type gas turbine having a compact narrow space is effectively cooled therearound by the natural ventilation without providing any fan or the like.
Patent CA-2270469-A1 (CA)
Title: Method of using cyclooxygenase-2 inhibitors as anti-angiogenic agents
Inventor: MASFERRER JAIME L
IPC: A61K31/10
Filed: 1997-11-19
Abstract: This invention relates to the use of cyclooxygenase-2 inhibitors or derivatives thereof in preventing and treating angiogenic disorders. Included in this invention is Formula I, for the treatment or prevention of angiogenesis-related disorder comprising an effective amount of a cyclooxygenase-inhibitor of Formula I   (see formula I) wherein the substituents are defined herein.
Patent CA-2271154-A1 (CA)
Inventor: FARMER MICHAEL E
IPC: G01S13/931
Filed: 1998-10-16
Abstract: A leakage calibration and removal system and method estimates the complex in-phase and quadrature phase (I/Q) components of a leakage signal for each beam location in the sampled down-converted radar signal in a radar system (10). In a digital embodiment, the stored leakage calibration signal (264) is subtracted (206) from the sampled radar signal, and the resultant signal is processed (208, 210, 212) to detect targets. A leakage calibration process (250) is activated if a leakage signal test (214) indicates a problem for a sufficient number of consecutive scans (216), wherein for each beam location, M consecutive I/Q waveforms are averaged (252), known targets are removed (254, 256, 258), and the resulting signal is scaled (262) and stored (264) as a new leakage calibration signal (364) is converted to analog form (366), subtracted (301) from the analog down-converted radar signal (300), and scaled by a variable gain (303) before the complex I/Q components are sampled therefrom (302, 304).
Patent CA-2272843-A1 (CA)
Title: Broad-spectrum delta-endotoxins
Inventor: MALVAR THOMAS
IPC: C12R1/07
Filed: 1997-11-20
Abstract: Disclosed are novel synthetically-modified B. thuringiensis chimeric crystal proteins having improved insecticidal activity against coleopteran, dipteran and lepidopteran insects. Also disclosed are the nucleic acid segments encoding these novel peptides. Methods of making and using these genes and proteins are disclosed as well as methods for the recombinant expression, and transformation of suitable host cells. Transformed host cells and transgenic plants expressing the modified endotoxin are also aspects of the invention.
Patent CA-2272973-A1 (CA)
Inventor: HYDE ZARA
IPC: C07C7/20
Filed: 1999-05-20
Abstract: Inhibition performance is improved in styrene processing through the addition of a stable nitroxide free radical compound to the styrene feed and to the reflux of at least one column.
Patent CA-2278914-A1 (CA)
Inventor: WANUCH ARTHUR PAUL
IPC: H05B41/24
Filed: 1999-07-27
Abstract: A low-temperature theatrical lighting system consists of a rectangular frame structure having a pair of opposing tubular frame members; and a number of fluorescent lamps extending in parallel to each other between the frame members. Each frame member includes a number of fluorescent lamp sockets, and each fluorescent lamp is connected to an opposing pair of lamp sockets. The lighting system also includes a fluorescent lamp ballast assembly disposed within at least one of the frame members. The lamp ballast assembly is electrically connected to the lamp sockets and controls the intensity of light emitted from the fluorescent lamps.
Patent CA-2279330-A1 (CA)
Title: Color variable bipolar/ac light-emitting devices
Inventor: WANG YUNZHANG
IPC: H05B33/12
Filed: 1998-03-11
Abstract: The present invention includes color-variable light emitting devices which are capable of generating two independent colors, even at room temperature. The devices comprise a layer of at least one active electroluminescent polymer.      This electroluminescent polymer may be accompanied by one or two redox-mediating polymer layers. The devices comprise emissive polymer layers (5), redox polymer layer, partially transparent or protective substrate (2), and electrodes (1,3).
Patent CA-2281613-A1 (CA)
Title: Systeme pour obtenir des preformes a partir d'une suspension
Inventor: BODARY JOSEPH A
IPC: B29C70/30
Filed: 1999-01-15
Abstract: Cette invention concerne un procédé et un appareil efficaces et peu coûteux destinés à contrôler le dépôt de fibres dans une préforme (12) renforcée par fibres. Selon le procédé, on place un écran principal (26) dans un réservoir (36) rempli de liquide (44). L'écran principal (26) possède une surface centrale (30), des parois latérales verticales (28) et plusieurs orifices (32). On ajoute au liquide (44) des fibres de renforcement (42) pour former une suspension (45). On fait remonter l'écran principal (26) à travers le liquide (45) à un niveau se trouvant sous la partie supérieure de la suspension (45); les fibres de renforcement (42) se déposent alors sur l'écran principal (26). Un écran de rétention (34) est inséré dans la suspension (45) de manière à ce que les fibres de renforcement (42) soient prises en sandwich entre l'écran principal (26) et l'écran de rétention (34). On retire du réservoir (36) l'écran principal (26) tout comme l'écran de rétention (34) en formant ainsi une préforme (12), de manière efficace et avec un minimum de déformations. Dans un autre mode de réalisation, un dispositif de commande (86) de la zone de formation de bulles sert à mélanger la suspension (45). Le réservoir (36) est divisé en parties, ou zones, séparées (88) qui servent à contrôler l'alimentation en fluide (44) de chaque zone de formation de bulles (88). On peut utiliser le dispositif de commande (86) de la zone de formation de bulles pour déclencher ou pour réduire un tourbillon dans la suspension (45) a mesure que l'on retire l'écran (26) du réservoir (36). Dans un autre mode de réalisation, un système de distribution de fibres (103) sert à ajouter des fibres (42) à la suspension (45).
Patent CA-2282091-A1 (CA)
Title: Apparatus for circuit power-down
Inventor: ILIASEVITCH STEPAN
IPC: H03K17/687
Filed: 1999-09-10
Abstract: An apparatus for circuit power-down with minimal impact on circuit performance during powered conditions. An embodiment includes a bias block switching means, a first switch, a first switched constant current means and a first voltage follower. The bias block switching means has a first node, second node and a third node. The bias block switching means has a first state for substantially electrically connecting the first node and the third node and a second state for substantially electrically connecting the second node and the third node. The bias block switching means is responsive to a power down control signal for switching between the first state of the bias block switching means the second state of the bias block switching means. The first node of the bias block switching means is operatively coupled to a reference voltage and the second node of the bias block switching means is operatively coupled to a first supply voltage. The first switch has a first node and a second node. The first switch has a first state for substantially electrically isolating the first node and the second node and a second state for substantially electrically connecting the first node and the second node. The first switch is responsive to the power down control signal for switching between the first state of the first switch and the second state of the first switch. The first node of the first switch provides the output signal. The first switched constant current means is coupled to the first node of the first switch and the first supply voltage. The first switched constant current means has a first state for providing a constant current output and a second state for providing substantially no current.      The first switched constant current means is responsive to a bias signal for switching between the first state of the first switched constant current means and the second state of the first switched constant current means. The bias signal is output from the third node of the bias block switch. The first voltage follower has a first terminal, a second terminal and a third terminal. The first terminal receives the input signal, the second terminal is operatively coupled to the second voltage supply and the third terminal is operatively coupled to the second node of the first switch. An advantage is only permitting parasitic current during power-down operation. Multiple stages are possible.
Patent CA-2283090-A1 (CA)
Inventor: STRAUSS MICHAEL
IPC: C12N15/09
Filed: 1998-02-20
Abstract: The present invention relates to use of a vector containing genetic material for the preparation of a composition for the treatment of malignant disease, said vector, upon administration in a subject suffering from malignant disease, inducing apoptosis in malignant cells by reducing the ratio of the level of pRb protein to the level of an apoptosis-inducing protein in malignant cells, by reducing the level of pRb and increasing the level of the apoptosis-inducing protein, after having first achieved growth arrest of said malignant cells by inducing herein an inhibition of phosphorylation of the pRb protein. The invention further relates to specific vectors for efficient transfer.