baber/WOPTO huggingface dataset:
Patent CA-2302538-A1 (CA)
Title: Production tubing shunt valve
Inventor: TETZLAFF STEVEN K
IPC: F16K17/19
Filed: 2000-03-24
Abstract: A submersible pump assembly suspended on a string of tubing in a well has a valve that drains the tubing above the pump when the pump shuts down.  The valve includes a valve housing installed with the tubing string above the submersible pump assembly. The valve housing has an interior in communication with fluid in the string of tubing above the valve housing, and a shunt port communicating the interior of the valve housing with an annulus surrounding the string of tubing. A valve cage is slidably received within the valve housing for movement between upper and lower positions. The valve cage blocks communication through the shunt port while in the upper position, and while in the lower position, opens the shunt port. A valve seat is located in the valve cage, and a valve member moves between a lower position, sealingly engaging the valve seat, and an upper position, allowing flow through the valve seat from the pump to the tubing string. Pump pressure causes the valve cage and the valve member to move to the upper positions. Ceasing operation of the submersible pump assembly causes the valve cage and the valve member to move to the lower positions, allowing fluid in the tubing string to flow out the shunt port to equalize with fluid in the annulus.
Patent CA-2303972-A1 (CA)
Title: Separation des enantiomeres d'octahydroisoquinoleine
Inventor: STANLEY KENNETH D
IPC: C07D217/20
Filed: 1998-09-02
Abstract: L'invention concerne un procédé d'isolement de (-)1-(p-méthoxybenzyl)-1, 2,3,4,5,6,7,8- octahydroisoquinoléine à partir d'un mélange racémique, ce procédé consistant à traiter des mélanges partiellement dédoublés avec de l'acide formique, afin de former un sel presque racémique destiné à être dédoublé.
Patent CA-2305211-A1 (CA)
Title: Golf training device
Inventor: NEMECKAY STEPHEN A
IPC: E05C17/30
Filed: 1998-09-30
Abstract: A golf training device (8) for aiding in golf swing training and golf warm-up activities. The golf training device (8) includes a golf club-like shaft (18), at least one weighted member (10) and a stopper (72). The at least one weighted member (10) is adapted to removably mount onto the shaft (18) and is defined by two temporary lockable interdigitating members (20, 20') and a locking member (14). The stopper (72) which attaches to the bottom end of the shaft (18) further aids in preventing the at least one weighted member (10) from inadvertent disengagement from the shaft (18).
Patent CA-2305677-A1 (CA)
Inventor: MEYER JOSEF
IPC: C09D17/00
Filed: 1998-09-18
Abstract: Certains polyuréthanes anioniques conviennent remarquablement comme liants pour l'enduction, la teinture et l'impression de textiles et de cuirs. Ces polyuréthanes sont biodégradables, de sorte que les bains résiduaires et détergents issus du processus de teinture peuvent être acheminés à une installation de clarification biologique.
Patent CA-2306292-A1 (CA)
Title: Monitoring system
Inventor: FENDIS GREGORY
IPC: G08B25/01
Filed: 2000-04-20
Abstract: The present invention provides a method and system for of monitoring a site, the method including: monitoring the site for the occurrence of predetermined alarm condition;  responding to the alarm condition by capturing a packet of alarm data; and transmitting the packet of alarm data to a remote location or to a communications network for transmission to the remote location.
Patent CA-2312395-A1 (CA)
Title: Method and apparatus for knee prosthesis
Inventor: DENNIS DOUGLAS A
IPC: A61F2/00
Filed: 1998-12-02
Abstract: The invention is a knee prosthesis which more accurately reproduces the rollback of natural knee movement and, thus, reduces wear on the tibial component. The knee prosthesis includes a femoral component (10) with two cams (22, 24), the first (22) located between the posterior condylar sections (14), and the second (24) located towards the anterior end of the condylar sections (14) with a slot surface therebetween. The tibial component (30) includes a spine which engages each cam as it rotates along the femoral component and the slot surface (20) during flexion, and extension.
Patent CA-2316006-A1 (CA)
Inventor: NGUYEN VU HIEN
IPC: A61F13/15
Filed: 2000-08-15
Abstract: A sanitary absorbent article, having a fluid-permeable cover layer intended for placement against a body of a wearer when the article is in use by the wearer; a liquid-impervious barrier layer intended to face away from the body of the wearer when the article is in use by the wearer; and an absorbent structure intermediate the cover layer and the barrier layer The absorbent structure includes a first absorbent layer, the first absorbent layer having a density of between about 0.04 g/cm3 and about 0.09 g/cm3, the first absorbent layer having superabsorbent particles incorporated therein in an amount no greater than about 15% on a weight per weight basis; and a second absorbent layer having a density of between about 0.25 g/cm3 and about 0.5 g/cm3; the second absorbent layer having superabsorbent particles incorporated therein in an amount no less than about 30% on a weight per weight basis.
Patent CA-2316454-A1 (CA)
Title: Striped film and apparatus and method
Inventor: HAVENS MARVIN R
IPC: B32B27/08
Filed: 1991-08-27
Abstract: Striped films of the invention can have two or more preferably polymeric layers, of which at least one continuous or discontinuous layer includes a pigmented resin. The striped film is produced by modifying conventional coextrusion dies to restrict the flow of a pigmented melt stream. The result is a striped film useful for identifying the contents of a package made from the film, tamper evidence, counterfeit protection and verification of properties.      The stripes can be of one or more colors, and vary in width and spacing. The pigment can be a material visible in ordinary light, or a material invisible in ordinary light but visible in e.g. ultraviolet light.
Patent CA-2316935-A1 (CA)
Inventor: LANGNER CARL
IPC: B22D11/22
Filed: 1999-01-12
Abstract: A continuous casting mold assembly (10) has four mold walls (74a, 74b, 74c, 74d) in the form of discrete plates. The mold walls (74a, 74b, 74c, 74d) are arranged with an edge face (94) of each wall (74a, 74b, 74c, 74d) abutting a major face (91) of an adjacent mold wall (74a, 74b, 74c, 74d). To permit changes in taper, each of the mold walls (74a, 74b, 74c, 74d) is mounted for pivotal movement on two orthogonal axes. The mold walls (74a, 74b, 74c, 74d) are held together by springs (54) which can be hydraulically relieved when the mold walls (74a, 74b, 74c, 74d) are to be adjusted. The mold walls (74a, 74b, 74c, 74d) tend to move away from one another following hydraulic relief of the springs (54), and such movements are limited by screws (88) associated with the respective mold walls (74a, 74b, 74c, 74d). The screws (88) contact abutments (36, 42) when the mold walls (74a, 74b, 74c, 74d) have moved apart by distances large enough to allow pivoting of the walls (74a, 74b, 74c, 74d) but not large enough to permit molten material to leak between the walls (74a, 74b, 74c, 74d).
Patent CA-2317963-A1 (CA)
Inventor: HEINRICH GERHARD W
IPC: B03C1/30
Filed: 2000-08-29
Abstract: The invention combines the advantages of Magnetoflotation with those of centrifugal flotation - thus providing three products in one separation stage. It also can be operated as magnetic separator alone, - in which case it offers the possibility of increased capacity per floor space area because of its peripheral discharge versus the linear discharge used in conventional drum type separators as well as the option to stack several separation units vertically. Each separation unit comprises of a centre fed double-walled flat rotating bowl with magnets on the top of the bowl, of which the top wall tapers upward to the outside to lift magnetic particles out of the slurry into a launder using magnetic and centrifugal forces, while centrifugal flotation may be carried out in the lower section of the bowl.
Patent CA-2318813-A1 (CA)
Title: Highly efficient controlled expression of exogenous genes in e. coli
Inventor: BROWN WILLIAM C
IPC: C12N15/70
Filed: 1999-01-27
Abstract: The invention relates generally to recombinant methods and materials for effecting the microbial production of useful polypeptides. More particularly, the invention relates to expression vector systems which utilize a translational repressor system, and transcriptional control proteins to provide a highly efficient, tightly regulated, staged inducible promoter system capable of expressing exogenous genes, including toxic genes, in E. coli.
Patent CA-2319320-A1 (CA)
Inventor: LUND LARS-GORAN
IPC: H04W12/02
Filed: 1999-01-14
Abstract: In a method and an arrangement for establishing an encrypted connection between a mobile station (MS) and a base transceiver station (BTS) in a mobile telephone system, the base transceiver station (BTS) makes sure, before forwarding a cipher mode command message to the mobile station (MS), that the mobile station (MS) is in multiple-frame-mode.
Patent CA-2319419-A1 (CA)
Title: Improved polymer blends for dewatering
Inventor: MORTIMER DAVID ALEXANDER
IPC: C02F1/56
Filed: 1999-01-12
Abstract: The invention provides blends of high molecular weight, water-soluble cationic structure polymers with high molecular weight, water-soluble, cationic polymers which either are linear or which have a lower degree of structure. The blends are useful for dewatering dispersions of suspended solids, achieving good dewatering rates at relatively low dosage levels.
Patent CA-2322325-A1 (CA)
Inventor: GURNEY PHILLIP CLYDE ROBERTS
IPC: H04B10/2513
Filed: 1999-03-02
Abstract: An optical device (2) having a number of waveguides (12), an input port (6) coupled to the waveguides (12) such that light incident on the input port (6) is split for propagation on the waveguides, and an output port (10) receiving light propagated on the waveguides (12) at a point on an output plane of incidence. The waveguides (12) induce respective delays in the propagated light to induce a wavelength dependent group delay. Delays between adjacent waveguides are chosen to be non-constant, to introduce quadratic, cubic or higher-order phase differences between different waveguides. Applications include dispersion compensation, pulse compression, and passband broadening in arrayed waveguide grating multiplexers and demultiplexers.
Patent CA-2326813-A1 (CA)
Inventor: LEE JIN SOO
IPC: G06F17/30
Filed: 2000-01-27
Abstract: A method of searching or browsing multimedia data which can effectively search or browse an image is disclosed. In the present method, the searching or browsing is performed in consideration of at least one of a reliability information on a weight of a feature of an input multimedia data and an authority code. According to the method, the system selects reference multimedia data, and searches the multimedia data using a weight of a feature and/or a feature element of the input multimedia data. A user gives feedback on the relevance of the searched or browsed multimedia data, and the system calculates a new weight using the relevance information. Thus, the system updates and maintains new weights of features and/or feature elements.
Patent CA-2328100-A1 (CA)
Inventor: MORIMOTO HIROYUKI
IPC: A61J3/10
Filed: 1999-04-09
Abstract: A tablet manufacturing method comprising a step of providing molding materials including effective ingredients, a step of applying a lubricant to the surfaces of a mortar and a mallow housed in a spray room in advance by generating air pulsation wave and spraying the lubricant within the room and a step of compressing the molding materials using the lubricant-coated mortar and mallow.
Patent CA-2332225-A1 (CA)
Inventor: LEGAULT DENIS BERNARD
IPC: A63B71/02
Filed: 2001-01-25
Abstract: A portable batting practise cage and method of use of the same. The portable batting practise cage includes several support poles and a non-supporting mesh shell. The shell has a substantially planar end wall, depending anchor lines and several transversely extending rows of externally positioned loops. The shell is supported and held erect by inserting one of the several support poles through each of the several transversely positioned rows of externally positioned loops, and anchoring the mesh shell to a ground surface by means of the anchor lines. A pitching port is provided through the planar end wall of the shell, enabling a pitcher positioned outside of the structure to pitch to a batter positioned within the mesh shell.
Patent CA-2334315-A1 (CA)
Inventor: HANSEN THOMAS KRUSE
IPC: A61P29/00
Filed: 1999-06-29
Abstract: The invention relates to novel compounds, compositions containing them, and their use for treating medical disorders resulting from a deficiency in growth hormone.
Patent CA-2335488-A1 (CA)
Inventor: HORNIK VERED
IPC: A61K38/00
Filed: 1999-06-15
Abstract: Novel peptides which are conformationally constrained backbone cyclized somatostatin analogs, having somatostatin receptor sub-type selectivity are disclosed. These patterns of receptor subtype selectivity provide compounds having improved therapeutic utility. Methods for synthesizing the somatostatin analogs and for screening of the somatostatin analogs are also disclosed.  Furthermore, pharmaceutical compositions comprising somatostatin analogs, and methods of using such compositions are disclosed.
Patent CA-2337333-A1 (CA)
Title: Dispositif de curietherapie
Inventor: FISCHER FRANK J JR
IPC: A61N5/10
Filed: 1999-07-15
Abstract: L'invention concerne un dispositif de curiethérapie (10) utilisé pour exposer un patient à une radioactivité, qui comprend un élément allongé, tel qu'une aiguille ou une canule (12), conçu pour être introduit dans le corps du patient, et comporte également un stylet (14) se logeant, de façon à pouvoir coulisser, dans un alésage traversant (16) de l'aiguille (12). Le dispositif (10) comporte aussi une partie (64), située soit à proximité de l'extrémité proximale (18) de l'aiguille (12), soit à proximité de l'extrémité distale (24) du stylet (14), conçue pour qu'il y ait un frottement local défini entre l'aiguille (12) et le stylet (14). Le dispositif (10) est en outre pourvu d'une poignée antistatique (34) reliée à l'aiguille (12). Cette poignée (34) comporte un rampe intérieure (40) qui communique avec le trou traversant (16) de l'aiguille (12), dont la forme est tronconique et présente un angle spiral d'au moins environ 16·. Ladite partie à frottement localisé (64) peut être une partie écrasée ou un rebord (48) formés sur le stylet (14), ou bien une partie écrasée (44) ou une déformation (46) situées dans ou sur l'aiguille (12). La poignée (34) est constituée, de préférence, d'un polycarbonate, de résine acrylique ou acétal (par exemple une résine pourvue, de préférence, d'une charge de carbone, ou bien dissipant l'électricité statique grâce à une autre composition), ou bien un mélange de nylons hydroscopique. Le dispositif (10) est particulièrement avantageux par le fait que la rampe (40), sous sa forme préférée, se trouvant dans la poignée (34), facilite l'insertion de grains (26) de matière radioactive et d'espaceurs inertes (28) dans l'aiguille (12). La poignée antistatique (34) élimine, pour des raisons pratiques, les risques, connus précédemment, d'interférence électrostatique, de collage électrostatique des espaceurs (28) et de génération d'étincelles d'allumage. Enfin, la partie à frottement localisé (64) permet l'obtention d'un frottement contrôlé et prédéterminé entre l'aiguille (12) et le stylet (14), ce frottement empêchant le stylet (14) de tomber de l'aiguille (12), ce qui, également, élimine ou réduit le risque d'une éjection intempestive des grains radioactifs (26) et des espaceurs (28). Un tel frottement se produit, de façon avantageuse, pratiquement pendant toute la période pendant laquelle une partie quelconque du stylet (14) est logée dans l'aiguille.
Patent CA-2338622-A1 (CA)
Title: Gestion de puissance large bande (mise en reserve de puissance) dans un systeme large bande d'emetteur-recepteur de station de base a plusieurs ondes porteuses
Inventor: SCHMUTZ THOMAS R
IPC: H04L5/06
Filed: 1999-07-30
Abstract: L'invention concerne un système et un appareil permettant de gérer une puissance RF dans une station d'émetteur-récepteur large bande (BTS 600), comprenant une source de puissance RF comprenant plusieurs ondes porteuses (MCPA 660), permettant de maintenir une puissance de porteuse à un niveau prédéfini. La puissance est gérée par un agent (700) de mise en réserve de puissance qui est un module du logiciel du système BTS. Lorsqu'on demande une nouvelle voie, l'agent de mise en réserve de puissance détermine si cette demande peut être satisfaite au niveau demandé. D'autre part, l'agent (700) de mise en réserve de puissance détermine si la demande de voie peut être satisfaite à un niveau de puissance plus bas. L'agent de mise en réserve de puissance gère également des voies actives, par récupération de puissance à partir de voies demandant moins de puissance, et/ou par affectation de plus de puissance aux voies demandant plus de puissance. Si l'agent de mise en réserve de puissance satisfait une demande, il met cette demande en liste d'attente jusqu'à ce que de la puissance supplémentaire soit disponible. L'agent de mise en réserve de puissance traite également les signaux sonores qui surviennent en cas d'addition de module MPCA ou en cas défaillance du module MCPA.
Patent CA-2338821-A1 (CA)
Inventor: BECHER REINHARD
IPC: H04Q7/38
Filed: 1999-07-29
Abstract: During a dialogue between a service (DST) of a telecommunications network and a subscriber (TNR) connected to said network via a terminal (MTL), information is read out via the terminal and information is entered by the subscriber. To this end the terminal (MTL) following a specific command entered into same, on the basis of dialogue information (dif) which is transmitted to the terminal via a network connection, stored in said terminal and concerns the conduct of the dialogue, effects the read-out(s) to the subscriber (TNR) and receives the input(s) of the subscriber (TNR) and processes same. From this a dialogue result (drs) is derived, which is transmitted to the service (DST) via a network connection. On the network side the service (DST) is continued in accordance with the dialogue result (drs).
Patent CA-2340255-A1 (CA)
Title: On-line synthesis and regeneration of a catalyst used in autothermal oxidation
Inventor: BHARADWAJ SAMEER S
IPC: B01J23/56
Filed: 1999-09-01
Abstract: An on-line method of synthesizing or regenerating catalysts for autothermal oxidation processes, specifically, the oxidation of paraffinic hydrocarbons, for example, ethane, propane, and naphtha, to olefins, for example, ethylene and propylene. The catalyst comprises a Group 8B metal, for example, a platinum group metal and, optionally, a promoter, such as tin, antimony, or copper, on a support, preferably a monolith support. On-line synthesis or regeneration involves co-feeding a volatile Group 8B metal compound and/or a volatile promoter compound with the paraffinic hydrocarbon and oxygen into the oxidation reactor under ignition or autothermal conditions.
Patent CA-2340638-A1 (CA)
Inventor: KOLEV JORDAN BORISLAVOV
IPC: F01K21/04
Filed: 2000-05-25
Abstract: The system is designed for compressing and ejecting of piston engines, with a field of application in the transport, in the power engineering and in any field of engineering where engines are used. Unlike the steam, gas and gas- steam thermodynamic cycles used up to now, it is an object of the proposed invention to create a system for compressing and ejecting of piston engines which to realize an air-steam thermodynamic cycle. The invention creates a possibility to increase the thermal efficiency of the piston engine up to 80 - 85 % taking into consideration that the steam is used to compensate the ener gy loss in the cycle reversibility only (mass flow about 20-30 %) but not in th e full working volume of the engine as it is in the steam engine and the steam  turbine. The system for compressing and ejecting consists of a steam generat or (SG), an ejector (E), a piston engine (PE), a steam-air turbine (T), an air compressor (K), a thermo exchanger (TE), a condenser (C), a piston condensat e pump (PC), a sweat-reservoir (SR) and control valves (CV).
Patent CA-2342976-A1 (CA)
Title: Oral care compositions
Inventor: CREETH JONATHAN
IPC: A61K33/30
Filed: 1999-09-20
Abstract: The invention relates to an oral care composition with antiplaque agents. Th e antiplaque agents are complexes of divalent copper, zinc, iron or tin, or trivalent iron with a specific class of cyclic .alpha.-hydroxyketones. A typical example is the copper(II)-ethylmaltol complex. These complexes are more active antiplaque agents than e.g. copper-hinokitiol complexes.
Patent CA-2343506-A1 (CA)
Inventor: ETHINGTON BRADLEY GAYLE
IPC: B60C25/135
Filed: 2001-04-06
Abstract: A tool for use in installing the bead seat band (44) and rim flange (42) of a multiple piece wheel as part of a tire changing or servicing operation that includes a tool body (10) having a corner with a first elongated surface (34) at the corner adapted to engage a rim flange (42) and a bead seat band (44) in an axial direction. The tool includes a second elongated surface (36) at the corner adjacent the first surface (34) at an acute angle to the first surface and adapted to engage the rim flange (42) in an axial direction at a location spaced from the intended point of engagement of the ring flange (42) by the first surface (34). The first and second surfaces (34), (36) define a notch (32) opening away from the body (10) and a tool mounting fixture (26) is connected to the body (10) generally opposite the notch (32).
Patent CA-2343735-A1 (CA)
Inventor: MARRIOTT PHILIP
IPC: H01J49/10
Filed: 1999-09-16
Abstract: Cette invention se rapporte à la spectrométrie de masse à plasma inductif (ICPMS), et concerne une cellule de collision qui permet d'éliminer sélectivement des ions parasites indésirables dans un faisceau d'ions en les faisant entrer en interaction avec un gaz réactif. A cette fin, une première chambre (6) se trouvant sous un vide élevé est disposée entre une chambre d'expansion (3) et une seconde chambre sous vide (20) contenant la cellule de collision (24). La première chambre sous vide (6) comprend un premier dispositif optique ionique (17), tandis que la cellule de collision (24) comprend un second dispositif optique ionique (25). La première chambre sous vide (6) permet de réduire la charge des gaz sur la cellule de collision (24) en minimisant la pression résiduelle dans ladite cellule de collision (24), cette pression résiduelle étant imputable à la charge des gaz provenant de la source de plasma (1). Il est ainsi possible de minimiser la formation, ou la reformation, d'ions parasites indésirables dans la cellule de collision (24).
Patent CA-2344731-A1 (CA)
Inventor: ONG RAYMOND K J
IPC: H02K3/47
Filed: 2001-04-19
Abstract: A dynamoelectric machine includes a stator having teeth fabricated from a non-magnetic material and containing at least one embedded conductor.  The teeth are unitary with a back portion that is mounted to a stator back iron.  Permeance variations induced by a stator winding mounted on the non-magnetic stator teeth are low which facilitates a reduction of motor noise. Specifically, since the non-magnetic teeth reduce production of permeance variations, changes in air gap forces between the rotor and the stator are decreased.