baber/WOPTO huggingface dataset:
Patent CA-2286642-A1 (CA)
Title: Mechanical duty rubber bellows
Inventor: ARMSTRONG RICHARD JAMES
IPC: F16J3/04
Filed: 1999-10-05
Abstract: A mechanical duty bellows seal is constructed from a number of annular rubber diaphragms of comparatively thick cross-section alternately bonded to a series of outer and inner metal hoops so that the hoops hold the rubber diaphragms in simple shear during flexure of the bellows. The stresses in the rubber in shear are predictable thus allowing the calculation of diaphragm proportions to control stress levels.
Patent CA-2286853-A1 (CA)
Inventor: MARCZAK STANISLAW
IPC: C02F1/70
Filed: 1998-04-03
Abstract: Nitrates are reduced to nitrogen gas by contacting the nitrates with a metal to reduce the nitrates to nitrites which are then contacted with an amide to produce carbon dioxide and nitrogen which can be released to the atmosphere.  Minor amounts of metal catalysts can be useful in the reduction of the nitrates to nitrites. Metal salts which are formed can be treated electrochemically to recover the metals.
Patent CA-2290975-A1 (CA)
Inventor: CODATTO ANTONIO
IPC: B21D5/04
Filed: 1998-05-28
Abstract: Le serre-flanc (16) d'une presse à cintrer comprend une séries de sections (26, 28) et une paire de chariots à moteur (42) présentant chacun un élément d'entraînement (44) qui peut s'engager et se dégager sélectivement des sections (26, 28) de manière à les déplacer à des fins de repositionnement. Chacune des deux sections (28) situées aux extrémités opposées de la série comprend un corps porte-sabot (48) qui supporte un sabot respectif (50) au moyen de guides inclinés. Chaque porte-sabot (48) porte un coulisseau respectif (56) ayant une partie d'entraînement (60) et chaque sabot (50) comporte une partie menée (64). Ces parties d'entraînement et menées présentent des éléments (62, 64) coopérant l'un avec l'autre directement avec un accouplement profilé à un seul degré de liberté, disposé de sorte que les mouvements du coulisseau (56) soient transformés en mouvements obliques du sabot respectif (50) de sorte qu'il se dégage d'une courbure latérale en forme de canal et qu'il vienne en contact avec celle-ci, sans glisser sur ce dernier, ladite courbure ayant été formée préalablement dans un panneau de tôle,. Chaque chariot comporte un élément entraîné (58) qui peut entrer en contact par l'élément d'entraînement (44) de sorte que le coulisseau (56) se déplace sélectivement vers le centre de la presse. Les deux chariots (42) sont mobiles simultanément sur commande dans des sens opposés de sorte que les mouvements susmentionnés des sabots (50) soient provoqués au moyen des coulisseaux (56).
Patent CA-2291470-A1 (CA)
Title: Superconductive non-linear transmission lines and method of construction thereof
Inventor: MANSOUR RAAFAT R
IPC: H01P3/08
Filed: 1999-12-14
Abstract: A non-linear transmission line has high temperature superconductive elements periodically loaded thereon. The elements have non-linear characteristics that provide voltage dependent non-linearity to the transmission line. The line can have a circuit with a first layer and a second layer with. the second layer having several interdigital circuits printed thereon. The line can also have a meandering configuration or a spiral configuration.
Patent CA-2298444-A1 (CA)
Title: Tread arcs for nonrotatable automobile and light truck tires
Inventor: GILLIAM DONALD WOODROW
IPC: B60C19/00
Filed: 1997-09-17
Abstract: A pneumatic radial tire combination for four-wheeled automobile or light truck vehicles. The tire combination has a pair of front steer position tires and a pair of rear position tires. The front steer position tire (10) has a first tread arc (46) when the tire is normally inflated for normal load but unloaded, of decreasing radii extending toward the lateral edges (42, 44) and a straight line (50) drawn between the intersection of the tread arc curvature and the centerplane is inclined at an angle .theta. F of greater than 5.degree. relative to a tangent line L, L being tangent to the tread arc at the centerplane and parallel to the axis of rotation R. The rear tire (20) when similarly measured has a tread arc having an angle .theta.R of less than 5.degree..
Patent CA-2298683-A1 (CA)
Title: Paper bulking promoter
Inventor: TAKAHASHI HIROMICHI
IPC: D21H21/24
Filed: 1999-06-02
Abstract: According to the present invention, a bulky sheet can be obtained without reducing the effect of a sizing agent.  Thus, an ester compound having the melting point of not more than 100°C selected from (A) an ester compound of a polyhydric alcohol and a fatty acid and (B) an ester compound of a polyhydric alcohol and a fatty acid further including from more than 0 mole to less than 12 moles on the average of C2-4 oxyalkylene groups per 1 mole of the said ester compound is used as a paper bulking promoter.
Patent CA-2299905-A1 (CA)
Title: Composites comprising a hydrophilic polyester-polyurethane foamed material and a process for the production of composite materials for vehicle interior trim
Inventor: BAATZ GUNTHER
IPC: C08G18/40
Filed: 2000-03-02
Abstract: Composites comprising a polyurethane core and an outer facing layer are described in the present invention. Suitable polyurethane cores are hydrophilic polyester-polyurethane foamed materials which comprise the reaction product of: (a) at least one polyisocyanate, with (b) at least one polyester polyol containing at least two hydroxyl groups and having an average molecular weight within the range from more than 700 to 10,000, and (c) at least one ethoxylated polyether polyol, containing at least two hydroxyl groups, having a molecular weight of at more than 700, a functionality of from 2 to 6, and having a degree of ethoxylation greater than 30% by weight, and (d) optionally, at least one compound containing at least two active hydrogen atoms and having an average molecular weight within the range from 32 to 700, and (e) catalysts, water and/or foaming agents, and (f) optionally, adjuvant substances and additives. The present invention also relates to process for the production of these composite materials, and to the use of these composite materials for vehicle interior trim.
Patent CA-2301462-A1 (CA)
Inventor: ROBINSON STEVE
IPC: B60R5/04
Filed: 2000-03-21
Abstract: A bed slide for use in a vehicle storage area is disclosed. The bed slide is designed to provide greater access to stored objects, requires no fasteners for mounting, and is easily removable. The bed slide is characterized by two detachable pieces, a bottom frame that stays stationary , and a top portion that slides forward and back along the bottom frame. The bottom frame is connected to the vehicle storage area by inserting the pegs of the bottom frame into holes in the vehicle storage.
Patent CA-2303457-A1 (CA)
Title: Method for premature termination of burst transmission in wireless communication systems
Inventor: KUO WEN-YI
IPC: H04J13/00
Filed: 2000-03-30
Abstract: The invention provides a novel methodology that increases the performance of wireless communication systems by efficiently managing the assignment of burst transmissions. The invention provides a mechanism for premature termination of burst transmissions, depending on a set of intelligent criteria. The invention checks for power overload conditions and excessive frame error rates (FER) in determining a premature burst termination. Also checked is a known time period which no burst shall exceed in transferring data. The invention advantageously increases the system throughput and data rates and maximizes power capacity in the data channels. In particular, transmission quality is maintained, as power overloading and excessive interference problems are circumvented. Systems resources are efficiently conserved and better utilized as a result.
Patent CA-2305336-A1 (CA)
Inventor: NGUYEN TINH N
IPC: C08J5/18
Filed: 1999-07-29
Abstract: La présente invention concerne une composition de polypropylène convenant à la confection d'un film orienté à l'état solide. Cette composition comprend deux polypropylènes prédominamment isotactiques, le point de fusion de l'un des polypropylènes étant essentiellement inférieur à celui de l'autre. Selon une réalisation de l'invention, le polypropylène à point de fusion supérieur est obtenu par catalyse de Ziegler-Natta, le polypropylène à point de fusion inférieur étant obtenu par catalyse aux métallocènes. Si on la compare au polypropylène d'indice de fluage similaire obtenu par catalyse de Ziegler-Natta, et aux films orientés à l'état solide ainsi obtenu, la composition de l'invention offre un meilleur équilibre entre les caractéristiques d'étirement à haute température et les propriétés physiques des films orientés ainsi obtenus. Ainsi, pour une contrainte d'étirement identique ou inférieure à température élevée, le film orienté de la composition présente de meilleures propriétés telles que la rigidité, la rupture à l'étirement, la stabilité en dimensions, et l'effet de barrière à l'oxygène. L'invention concerne également un procédé de fabrication d'un film d'emballage orienté souple. Selon ce procédé, on extrude par fusion une feuille fondue à partir de la composition, et après solidification par refroidissement, on étire la feuille fondue jusqu'au niveau d'orientation, et ce, à une température telle que la feuille ne se rompt pas à l'étirement, mais en restant en dessous de la température T¿m.? de la composition. Le film ainsi obtenu n'a plus qu'à refroidir jusqu'au moins la température de cristallisation du polypropylène à point de fusion inférieur.
Patent CA-2305902-A1 (CA)
Title: Iron alloy containing molybdenum
Inventor: COOPER SELWYN JAMES
IPC: C22C37/10
Filed: 1998-10-14
Abstract: An iron alloy comprises 1.5-4.5 % carbon, 1.5-4.5 % silicon, at least 1.0 to 6.5 % molybdenum and optionally copper and/or nickel wherein (% Mo + % Ni + % Cu) does not exceed 6.5 %, balance iron and incidental impurities. The alloy is preferably spheroidal graphite cast iron. The alloy is especially useful in manufacturing brake disc rotors.
Patent CA-2306170-A1 (CA)
Inventor: CURRY KENNETH
IPC: A61P25/28
Filed: 2000-04-18
Abstract: The present invention relates to therapeutically active amino carboxy derivatives of barbituric acid, a method of preparing the same, and to pharmaceutical compositions comprising the compounds. The novel compounds are useful in treating diseases of the central nervous system related to the metabotropic glutamate receptor system.
Patent CA-2309352-A1 (CA)
Title: Heterocyclic-substituted tricyclics as thrombin receptor antagonists
Inventor: ASBEROM THEODROS
IPC: A61P9/06
Filed: 1998-11-23
Abstract: Heterocyclic-substituted tricyclics of formula (I) or a pharmaceutically acceptable salt thereof, wherein: the single dotted line represents an optional double bond; the double dotted line represents an optional single bond; n is 0-2; Q is optionally substituted cycloalkyl, heterocycloalkyl, aryl or heteroaryl; Het is an optionally substituted mono-, bi- or tricyclic heteroaromatic group; B is -(CH2)n3-, wherein n3 is 0-5, -CH2-O-, -CH2S-, -CH2-NR6-, -C(O)NR6-. -NR6C(O)-, (a), optionally substituted alkenyl or optionally substituted alkynyl; X is -O- or -NR6- when the double dotted line represents a single bond, or X  is -OH or -NHR20 when the bond is absent; Y is =O, =S, (H, H), (H, OH) or (H, C1-C6 alkoxy) when the double dotted line represents a single bond, or when the bond is absent, Y is =O, (H, H), (H, OH), (H, SH) or (H, C1-C6 alkoxy); R15 is absent when the double dotted line represents a single bond and is H, -NR18R19, or -OR17 when the bond is absent; or Y is (A) or (B) and R15 is H or C1-C6 alkyl; are disclosed, as well as pharmaceutical compositions containing them and a method of treating diseases associated with thrombosis, atherosclerosis, restenosis, hypertension, angina pectoris, arrhythmia, heart failure, and cancer by administering said compounds.
Patent CA-2313667-A1 (CA)
Title: Agitator motor protection system for vacuum cleaner
Inventor: MCCORMICK MICHAEL J
IPC: A47L5/30
Filed: 2000-07-10
Abstract: A vacuum cleaner includes a housing incorporating a handle assembly and a nozzle assembly, a suction fan and cooperating suction fan drive motor carried on the housing, a rotary agitator held in the nozzle assembly, an agitator drive motor carried on the housing and a motor control and protection circuit. The motor control and protection circuit includes a handle switch to de-energize the agitator motor when the handle is displaced to an upright storage position. The motor control and protection circuit may also include an above-floor switch and cooperating activation to de-energize the agitator drive motor when the nozzle assembly is displaced above the floor for bare floor cleaning.      Additionally, the motor control and protection circuit may include a hose switch and activator, a selection switch and activator, a circuit breaker and a temperature sensor switch.
Patent CA-2314054-A1 (CA)
Title: Dust protection cover for a rotary grinding tool
Inventor: SPANGENBERG ROLF
IPC: B24B55/10
Filed: 2000-07-18
Abstract: A dust protection cover for a rotary grinding tool and having a base fixedly securable with the tool housing a substantially circular cover body connectable with the base for completely circumferentially covering the grinding disc securable at the free end of the output shaft of the tool drive motor, and displaceable between a operational position, in which the cover body completely covers the grinding disc, and a release position in which the cover body exposes a portion of a grinding disc circumference, and a connection element(s) projecting from a side of the base adjacent to the tool housing for securing the cover body to the base in the release position of the cover body.
Patent CA-2315305-A1 (CA)
Inventor: BANKSTAHL HERB
IPC: H02K7/18
Filed: 2000-07-19
Abstract: A method and apparatus for mounting a generator to an engine to concentrically align a stator with a rotor is disclosed. The engine powered generator includes an engine and a plate or wall mounted to the engine. A generator is mounted to the plate. The stator is secured in a generator housing having a circular cross section. A plurality of pins, preferably six or more, on the plate contact a surface of the housing. The pins may be dowels and/or cylindrical, and contact an inner and/or outer housing surface, tangentially or otherwise. The wall is substantially normal to the axis about which the engine shaft rotates. The pins protrude from the wall parallel to the axis, and the stator may be permanently affixed to the housing.
Patent CA-2318594-A1 (CA)
Title: Disposable safety syringe
Inventor: ROSSI ROBERTO
IPC: A61M5/50
Filed: 1999-01-18
Abstract: A needle-covering sleeve (14), slidably fitted on the syringe barrel (1), is held in its retracted rest position by means of retaining tongues (10), which hook it at its rear rim (13). At the end of the injection stroke of the plunger (2), a rear flange (8) of the stem (3) of the plunger (2) radially opens the retaining tongues (10) apart, which release thereby the needle-covering sleeve (14). Then, the latter is axially advanced by means of a spring (16), to an advanced safety position, in which it entirely covers the needle (5) and is fastened to a sleeve-clamping ring (18), which is provided at the fore end of the syringe barrel (1). To this purpose, the sleeve-clamping ring (18) has peripheral elastic retaining tongues (19) which interact with matching retaining teeth (20) on the inner part of needle-covering sleeve (14) and prevent any axial backward movement of the needle-covering sleeve (14). Further, the sleeve-clamping ring (18) is a stop abutment, cooperating with an inner projection of the needle-covering sleeve (14) and preventing any further axial forward movement of such sleeve.
Patent CA-2320945-A1 (CA)
Inventor: KISHINSKY KONSTATIN
IPC: H04Q3/64
Filed: 1999-02-25
Abstract: On décrit un système de gestion d'un centre téléphonique qui comprend une interface utilisateur graphique (IUG) adaptée pour modéliser le comportement du centre téléphonique et le comportement d'objets à l'intérieur du centre téléphonique, sous forme de graphes orientés de réseau de Pétri. Une fois mis au point, les graphes de réseau de Pétri peuvent être compilés en tant que modules logiciels destinés à être utilisés pour la gestion ITO d'un centre téléphonique. Dans un autre aspect, les réseaux de Pétri composés sont assemblés en réseaux de Pétri de haut niveau, et un moteur de réseau de Pétri est employé pour gérer un centre téléphonique. Les techniques et concepts de gestion appliqués sont étendus à la gestion du réseau également.
Patent CA-2321826-A1 (CA)
Title: Pharmaceutical formulations of taxanes
Inventor: HAUSHEER FREDERICK H
IPC: A61K47/10
Filed: 2000-01-07
Abstract: A pharmaceutical formulation of a taxane antineoplastic agent, particularly paclitaxel or docetaxel or a pharmaceutically acceptable salt thereof, and N-methylpyrrolidin-2-one (NMP), and/or Dimethylacetamide (DMA), and/or Dimethylisosorbide (DMI). The formulation may include other excipients and/or diluents, and is suitable for administration to patients with cancer.
Patent CA-2325341-A1 (CA)
Inventor: DEBINSKI WALDEMAR
IPC: C07K19/00
Filed: 1999-03-31
Abstract: This invention provides mutagenized interleukin 13 molecules that show improved specificity for the restricted (IL4 independent) IL13 receptor and reduced cross reactivity with the IL4/IL4 shared receptor. The mutagenized IL13 molecules include one or more mutations in a domain that interacts with the 140 kDa hIL4R.beta. or the hIL13R.alpha.1 subunit. These mutagenized IL13 molecules provide effective targeting moieties in chimeric molecules (e.g. fusion proteins) that specifically deliver effector molecules (e.g. cytotoxins) to cells overexpressing IL13 receptors (e.g. cancer cells such as gliomas).
Patent CA-2325680-A1 (CA)
Title: Self-supplied dc/dc switching power supply
Inventor: RAPEANU RADU
IPC: H02M1/36
Filed: 2000-11-10
Abstract: The present invention provides a self supplied DC/DC switching power supply circuit for emergency notification and similar applications. The circuit includes a control circuit in electrical communication with an igniter circuit. The igniter circuit provides a temporary activation voltage to the control circuit for activation thereof. The igniter circuit provides the activation voltage for a limited time duration sufficient for enablement of the switching power supply circuit after which time power is supplied to such control circuit by the output voltage. The present invention SPS circuit can use a single-cell battery pile or other low-voltage source as low as 0.3V DC while realizing improved efficiency over a wide range of input voltages.
Patent CA-2331494-A1 (CA)
Inventor: YOUNGER THOMAS L
IPC: G06Q20/34
Filed: 1999-05-11
Abstract: Système de personnalisation de carte intelligente constituant une interface par rapport à des stations de personnalisation de carte intelligente et à des ressources extérieures de données ou de calcul qui ne sont pas normalement disponibles directement pour la station de personnalisation. Un système de gestion d'émetteur de carte prépare des objets de carte et attribue un identificateur unique d'objet de carte. Un serveur de personnalisation de carte intelligente reçoit les objets de carte depuis le système de gestion d'émetteur de carte. Un contrôleur de personnalisation de carte intelligente reçoit les identificateurs uniques d'objet de carte et achemine ces identificateurs jusqu'à des stations de personnalisation en attente. Ces stations de personnalisation utilisent l'identificateur d'objet de carte afin de demander des données et des services au serveur de personnalisation de carte intelligente, de manière à personnaliser cette dernière. Les services fournis par ce serveur comprennent des services de données, des services de sécurité et des services de support. Ce serveur supporte de multiples sessions actives de station de personnalisation.
Patent CA-2333231-A1 (CA)
Inventor: SAKAMOTO YOSHITAKA
IPC: C07C311/48
Filed: 2001-01-31
Abstract: A process for producing sulfonylimide compound that is represented by the formula (I) MN(SO2R f1) (SO2R f2) industrially easily at a low cost in an efficient manner comprising reactions of at least one sulfonyl halagenides represented by the formula (II) R f SO2X with anhydrous ammonia or an ammonium salt in the presence of a fluorine compound represented by the formula (III) MF, in which X represents either F or Cl among halogen elements of VIIb group in the periodic table, and M represents any one of Li, Na, K and Cs among alkali metals of group Ia in the periodic table, R f1 and R f2, which may be the same or different, respectively represent any one of a straight chain or branched compound of a fluoroalkyl, perfluoroalkyl, fluoroallyl or fluoroalkenyl group having 1 to 12 carbon stoma, and R f in the formula (II) represents the same group as R f1 or R f2 in the formula (I).
Patent CA-2333299-A1 (CA)
Title: Method and apparatus for magnetically separating selected particles, particularly biological cells
Inventor: LAMISH AHARON
IPC: B03C1/30
Filed: 1999-05-13
Abstract: A method and apparatus for magnetically separating target particles from a sample in order to produce a concentration of the target particles in the sample, or a depletion of the sample with respect to the target particles, by producing a mixture of the sample with magnetic particles having a selective affinity to magnetically strain the target particles; feeding a buffer liquid through a tube (12) which includes an inlet (12a) connectable to a source of buffer liquid, and an outlet for the buffer liquid, introducing the sample mixture into the buffer liquid such that the buffer liquid forms a continuous liquid carrier for the sample mixture as both are fed through the tube; and applying a magnetic field across the tube (12) at a magnetizing station (13) therein to cause the magnetically-strained target particles to be separated and retained in the buffer liquid within the tube (12) at the magnetizing station.
Patent CA-2333730-A1 (CA)
Inventor: FJELL KNUT HARRY
IPC: E21B43/01
Filed: 1999-05-31
Abstract: Device related to risers (2), especially for transferring fluids between a construction (7) by the sea floor and a second construction at or close to t he surface, comprising: an upper essentially vertically extending part (2a) connected in its upper end to the construction at the sea surface; an intermediate part (2b) of the riser (2) connected to one or more buoyancy elements along at least a part of its length; and a lower part (2c) having a  lower end connected to the construction (1) at the sea floor, one or more weight elements (3) being provided at the lower part (2c) of the riser (2).< /SDOAB>
Patent CA-2334195-A1 (CA)
Inventor: CERWALL PATRIK
IPC: H04W36/08
Filed: 1999-06-01
Abstract: Audible effects of handover of a mobile subscriber station (M1, 22) in a digital cellular system are eliminated in either the uplink (UL) or the downlink (DL) by implementing discontinuous transmission (DTX) within the system on either or both of the links. A voice activity detector (VAD) monitors whether speech or non-transparent data is originating from a party and, if not, the transmission of that party is interrupted and only a single SID frame is sent during each SACCH period to update the background noise characteristics being generated at the other parties' receiver. Once it is determined by the system that a handover of a mobile needs to be performed (32), that handover is delayed until the party on the link on which DTX is implemented is neither talking nor sending non-transparent data (34) ensuring that the other party is having comfort noise being generated in its receiver and, thus, will not hear any audible effect of the handover.