baber/WOPTO huggingface dataset:
Patent CA-2274928-C (CA)
Inventor: ICHIKAWA YUKIHITO
IPC: B01J33/00
Filed: 1999-06-16
Granted: 2002-12-03
Abstract: Disclosed is a thin-walled honeycomb structure comprising a circumferential wall, partition walls disposed inside the circumferential wall, edge portions, defined by the partition walls meeting the circumferential wall, cell passages defined by the partition walls, and a coat of reinforcing material covering the circumferential wall in a narrow band, wherein the reinforcing material dissipates at a high temperature, thereby protecting the edge portions of the honeycomb structure from damage before the structure is subjected to baking treatment.
Patent CA-2277633-C (CA)
Title: Split-key key-agreement protocol
Inventor: VANSTONE SCOTT A
IPC: H04L9/08
Filed: 1999-07-19
Granted: 2009-10-20
Abstract: This invention relates to a method for generating a shared secret value between entities (E) in a data communication system, one or more of the entities having a plurality of members (M ij) for participation in the communication system, each member having a long term private key (P rij) and a corresponding long term public key (P Uij). The method comprises the steps of generating a short term private (x ij) and a corresponding short term public key (X ij)for each of the members (M ij); exchanging short term public keys (X ij) of the members within an entity (i). For each member then computing an intra-entity shared key by mathematically combining the short term public keys (X ij) of each the members computing an intra-entity public key (s i) by mathematically combining its short-term private key (x ij), the long term private key (P rij) and the intra-entity shared key. Next for each entity combining intra-entity public keys (s i) to derive a group short-term Si public key; each entity transmitting its intra-entity shared key (X i) and its group short term public (S i) key to the other entities; and each entity computing a common shared key K by combining its group short term public key (S i), with the intra-entity shared key (~i), and a group short term public (~i) key received from the other entities.
Patent CA-2278465-C (CA)
Title: Diagnosis and treatment of myocardial failure
Inventor: BRISTOW MICHAEL R
IPC: C07H21/04
Filed: 1998-01-30
Granted: 2010-04-27
Abstract: The invention provides methods and kits for diagnosing myocardial failure in a human. One method comprises obtaining a sample of myocardial tissue from a ventricle of the heart of the human; quantitating the expression of alpha-myosin heavy chain (alpha-MHC), beta-myosin heavy chain (beta-MHC), or both in the sample; and determining by statistical analysis if the expression of alpha-MHC or beta--MHC, or both in the sample is significantly different than their expression in human ventricular myocardial tissue. The invention also comprises a method of treating myocardial failure in a human.
Patent CA-2282280-C (CA)
Title: A method for treating sludge from wastewater treatment
Inventor: HANSEN BENGT
IPC: C02F3/12
Filed: 1998-03-12
Granted: 2007-01-30
Abstract: A method for treating sludge from wastewater purification is described. In the method, a sludge is treated, which contains phosphorus and at least one metal which originates from precipitation chemicals and which is selected among divalent iron and aluminium, the pH of the sludge being adjusted to below 4, preferably below 2, for dissolving the content of phosphorus and said metal in the sludge; the remaining sludge is separated; the solution relieved of sludge and containing phosphorus and said metal is treated for precipitation of the phosphorus content of the solution as FePO4 at a pH of 2-3; and precipitated FePO4 is separated.  The method is characterised in that the solution which remains after separation of FePO4 and which contains said metal from the precipitation chemicals, is recycled to the wastewater purification. The phosphorus content of the solution is precipitated as FePO4 by adding an at least equivalent amount of Fe3+.
Patent CA-2285767-C (CA)
Inventor: SWIETLIK GEORGE
IPC: E21B17/00
Filed: 1999-10-12
Granted: 2005-12-13
Abstract: Within a longitudinally-extending main housing having a longitudinally-extending duct, an indexing mechanism comprises a mandrel within the duct and capable of longitudinal movement relative to the main housing; a cam sleeve rotatable with respect to the mandrel but constrained in terms of longitudinal movement with respect to the mandrel, the cam sleeve having an external surface provided with a groove in the form of a closed loop; a cam follower resiliently urged into the groove of the cam sleeve; a main spring tending to urge the mandrel in a first direction along the duct; and a fluid abutment face, on which, in use, fluid under pressure can act to tend to urge the mandrel in a second direction opposite to the first direction; the groove having ramps and associated steps thereby restricting relative movement of the cam follower with respect to the groove, to one direction progressively around the closed loop; the groove having a plurality of rest positions at which the cam follower can rest, depending on which of the force of the main restoring means and the force of the fluid pressure dominates the other.
Patent CA-2289811-C (CA)
Title: Isolation of subterranean zones
Inventor: COOK ROBERT LANCE
IPC: E21B29/10
Filed: 1999-11-15
Granted: 2007-01-02
Abstract: One or more subterranean zones are isolated from one or more other subterranean zones using a combination of solid tubulars and slotted tubulars.
Patent CA-2290057-C (CA)
Inventor: MALKIN DANIEL D
IPC: B24B31/027
Filed: 1999-11-18
Granted: 2005-01-25
Abstract: A finishing assembly for vibratory finishing of workpieces in loose finishing media includes at least one generally annular finishing chamber which is driven by a drive assembly and supported by a support housing. The drive assembly consists of a crank shaft and a drive shaft which are rigidly connected to each other through a wedge-shaped gasket and oriented such that the rotary axis of the crank shaft and the rotary axis of the drive shaft intersect with one another at a predetermined angle. The crank shaft rotates within a first bearing hub which is rigidly mounted within the chamber and the drive shaft rotates within a second bearing hub which is rigidly secured to the assembly housing and which is actuated by an electric motor. The spatial vibration of the finishing assembly can be adjusted using a wedge-shaped gasket and/or by providing for horizontal displacement of the first bearing hub from the second bearing hub. The assembly housing acts as a reactive mass so that the finishing assembly experiences kinematic motion. Alternatively, the finishing assembly may include a second chamber to serve as a reactive mass, the second chamber being mounted either on the same level with the first chamber or underneath it. A special chute/groove arrangement can be provided to convey workpieces out of the first chamber and/or second chamber.
Patent CA-2291402-C (CA)
Inventor: JOHNSON ERIC A
IPC: H05K1/02
Filed: 1999-12-02
Granted: 2004-11-16
Abstract: A method and structure for reducing thermally induced strains on the solder joints that couple a ball grid array (BGA) module to a circuit card, so as to improve the fatigue life of the BGA module. The thermally induced strains arise from a mismatch in thermal expansion coefficient between the dielectric substrate of the BGA module and the dielectric board of the circuit card. The method generates void annular regions around portions of the BGA dielectric substrate to which the BGA solder balls are to be attached and/or around portions of the circuit card dielectric material to which the BGA module is to be attached. This results in the formation of dielectric islands or peninsulas that bound the solder balls of the BGA module after installation on the circuit card. The dielectric islands or peninsulas thus formed serve to increase the effective height over which the differential expansion is accommodated, thereby reducing the strains throughout the solder joints.   Additionally, the void annular regions provide space for the deformation of the dielectric islands or peninsulas, thereby increasing their compliance and transferring strain from the solder joints to the dielectric islands or peninsulas.
Patent CA-2291757-C (CA)
Title: Modificateur d'images a usage photographique
Inventor: HYLEN STEVEN H L
IPC: G03B15/00
Filed: 1997-05-09
Granted: 2005-01-18
Abstract: L'invention concerne un dispositif de modification de lumière destiné à être utilisé dans un appareil-photo. Le dispositif présente différents modes de réalisation: une lame transparente (2) ayant un diagramme de diffusion, montée sur le plan focal, une lame transparente montée sur une cartouche de film, une longueur d'une bande de film en plastique à motifs placée au voisinage d'une longueur similaire de bande (16) de film photographique, ces deux bandes de film étant enroulées dans un boîtier de film classique 35 mm, et un coupleur de lame transparente placée entre l'objectif principal de l'appareil-photo et le boîtier (12) de l'appareil-photo.
Patent CA-2292945-C (CA)
Inventor: WALLACE PAUL S
IPC: B01D53/62
Filed: 1998-06-05
Granted: 2009-01-20
Abstract: L'invention concerne un procédé permettant de séparer des gaz acides de gaz de synthèse, et de traiter les solides résultant de cette opération. Un mélange renfermant du gaz de synthèse et du gaz acide est mis en contact avec un fluide réagissant avec ledit gaz acide pour former un solide particulaire dispersé dans un fluide. La boue renfermant du fluide et des solides particulaires est filtrée afin de séparer lesdits solides particulaires dudit fluide au moyen d'un filtre régénérable. Les solides particulaires sont éliminés du filtre régénérable par lavage à contre-courant effectué à l'aide d'un fluide de lavage à contre-courant, pour former une boue pouvant être pompée, laquelle comporte un mélange de solides particulaires et de fluide de lavage à contre-courant. La boue est gazéifiée pour former un gaz de synthèse et des solides vitrifiés.
Patent CA-2304444-C (CA)
Inventor: JEANSON BERTRAND
IPC: A01G23/095
Filed: 1999-07-23
Granted: 2008-10-21
Abstract: A delimber having a standard carriage and a delimbing boom, the delimbing boom slidably mounted through the carriage. A drive module is detachably connected to the carriage for use in moving the boom relative to the carriage. Two different types of booms and up to three different drive modules, each with a different drive, can be provided. The boom and module selected to give the operating characteristics desired by the operator are connected to the carriage. Drive transfer members, in the form of cable or chain drives, are connected between the selected drive module and the selected boom. The module carries a variable displacement hydraulic motor. The motor is connected by a gear box to the drive transfer member. On delimbers using cable drives, at least one end of each cable is connected to the delimber with a hydraulic tensioner.
Patent CA-2305623-C (CA)
Inventor: CHAPPUIS GILLES
IPC: C12Q1/70
Filed: 1998-10-01
Granted: 2008-04-01
Abstract: The invention concerns porcine circovirus strains isolated from pulmonary and ganglionary specimens derived from livestock suffering from postweaning multisystemic wasting syndrome (PMWS). It concerns purified preparations of said strains, attenuated or inactivated standard vaccines, recombinant live vaccines, plasmid vaccines and subunit vaccines, as well as diagnostic reagents and methods. The invention also concerns DNA fragments useful for producing subunits in a expression vector in vitro or as sequences to be integrated in an expression vector in vivo of virus or plasmid type.
Patent CA-2307634-C (CA)
Title: Methods and compositions for manufacturing tinted ophthalmic lenses
Inventor: SEIFERLING BERNHARD
IPC: G02B1/04
Filed: 1998-11-12
Granted: 2008-02-05
Abstract: The invention relates to a process for the manufacture of tinted ophthalmic moldings comprising the steps of: (a) providing a water soluble polymer precursor having cross-linkable or polymerizable groups; (b) providing a pigment dispersion comprising an inorganic or organic pigment and a dispersing agent; (c) mixing the pigment dispersion wi th the polymer precursor to form a tinted prepolymerization mixture; (d) dispensing the tinted prepolymerization mixture into a mold; (e ) applying radiation to the tinted prepolymerization mixture in the mold, thereby cross-linking or polymerizing the polymer precursor and entrapping the pigment within the polymeric network of the resultant ophthalmic molding, and (f) opening the mold so that the ophthalmi c molding can be removed from the mold. According to the process, tinted ophthalmic moldings, particularly full-body tinted soft contact lenses having improved properties, are prepared with an improved efficiency.
Patent CA-2309216-C (CA)
Title: Pieces stratifiees et leur procede de fabrication
Inventor: FIELD ROBERT H
IPC: B60R25/02
Filed: 1998-11-23
Granted: 2004-07-27
Abstract: Procédé de fabrication d'un composant transmetteur de charge (10) comprenant au moins deux surfaces latérales d'engagement (17). Ledit procédé consiste à produire par emboutissage plusieurs feuilles fines (18) à partir d'un matériau de départ généralement plan. Les feuilles (18) sont superposées de sorte que les surfaces (20) disposées latéralement des feuilles adjacentes (18) coopèrent pour définir les surfaces d'engagement latérales (17) du composant (10). Les feuilles (18) sont fixées à demeure les unes aux autres, ce qui empêche tout mouvement relatif de l'ensemble lorsqu'une charge est transmise des surfaces latérales d'engagement (20) du composant à d'autres surfaces latérales d'engagement (20) de celui-ci.
Patent CA-2309289-C (CA)
Inventor: FUKUSHIMA HIROYUKI
IPC: B23G1/34
Filed: 2000-05-24
Granted: 2007-10-30
Abstract: A cutting tip having a three-layer laminated structure is provided. The tip is made from a disc-shaped three-layer laminate wherein a second layer consisting of a hard sintered compact of CBN or diamond is sandwiched by a first layer and a third layer consisting of a tool material such as cemented carbide. Prismatic blanks of rectangular cross-section are cut out by cutting the three-layer laminate in strips. Semi--completed tips of a desired shape are obtained by cutting up the prismatic blanks. Desired cutting edges are formed on the semi-completed tips to produce completed tips. Because prismatic blanks are obtained from a three-layer laminate and semi-completed tips are cut out from the prismatic blanks like this, the semi-completed tips can be obtained in large numbers, yield is high, and the manufacturing cost of the tip can be reduced.
Patent CA-2310350-C (CA)
Title: Adapter for providing fluid control between a canteen and face mask fluid tube
Inventor: BUCCI KIMBERLEY
IPC: A62B18/08
Filed: 2000-05-30
Granted: 2004-12-14
Abstract: A canteen especially useful in extreme environments includes a hollow watertight container adapted to hold a quantity of a drinking fluid. An adapter allows the canteen to be sealed with a gas mask adapter depending from the face mask, in such a manner as to allow the passage of fluid between the canteen and a delivery tube within the mask accessible by a user with minimal or no contamination of the contents of the canteen in an identified nuclear, biological, or chemical threat. In a first position, the adapter allows fluid flow between delivery tube and the canteen, and in a second stopped position, fluid is prevented from leaving the canteen.
Patent CA-2312217-C (CA)
Inventor: BRUCHAL BRIAN J
IPC: F04D29/06
Filed: 2000-06-21
Granted: 2006-12-12
Abstract: A variable pitch fan in which the pitch of the fan blades is varied under control of a controller according to the speed of the fan. The controller is programmed to respond to increased fan speed by decreasing pitch of the fan blades. The variable pitch fan has a piston extending axially from a main shaft, about which main shaft a fan blade hub rotates. A pitch shifter is mounted on a cylinder, which itself is mounted on the piston. The pitch shifter is actuated by hydraulic fluid supplied through the main shaft to the cylinder. The piston is preferably axially stationary in relation to the main shaft. The cylinder is secured against rotational movement by cooperating out of round surfaces. Grease for the pitch shifter is supplied through the guide pin. One guide pin may be used for grease supply, while another may be used for excess grease return. Cooling of a pitch shifter may be accomplished using a heat sink mounted within the fan hub, preferably in a fan configuration, to conduct heat away from the cylinder into air rotating within the fan hub. Counterweights are mounted on each fan blade of a variable pitch fan, preferably hydraulically actuated, in a position which generates a torque opposite in direction to torque generated by the fan blades. The counterweights may be overbalanced, underbalanced, or balanced.
Patent CA-2326804-C (CA)
Inventor: MESSIER TERRI
IPC: A61K31/4427
Filed: 1999-03-31
Granted: 2006-05-02
Abstract: La présente invention concerne des composés et des procédés permettant de soulager ou de traiter des affections ou des états dans le cas desquels une modification de l'activité du récepteur muscarinique m1 présente un effet bénéfique. Le procédé consiste à administrer à un patient justifiant un tel traitement une quantité suffisante d'un composé agoniste muscarinique m1 sélectif.
Patent CA-2342687-C (CA)
Inventor: PELLEGRINO JOHN B
IPC: F16B7/04
Filed: 2001-04-02
Granted: 2005-12-06
Abstract: An automatic locking apparatus releasably locks an end plate connector to a frame. A vertical lever is positioned adjacent one surface of the end plate connector when the end plate connector is mounted to the frame. A locking pin and tension support extend from the vertical lever through the end plate connector. The tension support has a protruding end extending past the end plate connector. A tension device creates a force for pulling the vertical lever toward the end plate connector. The locking pin extends through the top of a notch or other aperture in the frame when studs of the end plate connector are positioned in the bottom of notches in the frame. The locking pin automatically retracts as the end plate connector comes into contact with the frame and automatically locks after the studs slide into the bottom of notches of the frame.
Patent CA-2349819-C (CA)
Inventor: BURRELL MICHAEL MEYRICK
IPC: C12N15/29
Filed: 1999-11-09
Granted: 2008-09-09
Abstract: Starch of wheat and maize plants is altered by the introduction of a chimaeric gene comprising a glycogen synthase coding sequence under the control of a promoter directing expression and a terminator. A transit peptide for translocation of the glycogen synthase to the plant plastid may also be included in the chimaeric gene. The starch has altered processing characteristics, in particular an increased chain length.
Patent CA-2350395-C (CA)
Inventor: SCHWAB MARTIN E
IPC: C12N5/10
Filed: 1999-11-05
Granted: 2014-07-08
Abstract: L'invention concerne le gène Nogo, ses produits protéiques codés, ainsi que ses dérivés et analogues. L'invention concerne également la production de protéines de Nogo, de dérivés et d'anticorps correspondants. L'invention concerne en outre des compositions thérapeutiques et des procédés diagnostiques et thérapeutiques.
Patent CA-2356036-C (CA)
Title: Snowplow and mount assembly
Inventor: LEBLOND ANDRE VALMONT
IPC: E01H5/06
Filed: 2001-08-29
Granted: 2010-02-02
Abstract: A snowplow and mount assembly comprising a mount frame adapted to be secured to a vehicle, and a snowplow frame. One of the mount frame and the snowplow frame has first and second arms and the other of the mount frame and snowplow frame has first and second receivers, the first and second receivers receiving the first and second arms, respectively. Respective ones of first and second latch pins removably secure the first and second arms in the first and second receivers. A latch lever is operably associated with the first and second latch pins and simultaneously actuates the latch pins to latched and unlatched positions. The snowplow frame includes a jack stand movable to and between an extended ground contacting and snowplow frame supporting position and a retracted ground noncontacting and snowplow frame nonsupporting position. The latch lever operably frees the jack stand for movement into the extended position when the latch pins are in the unlatched position and operably prevents jack stand movement maintaining the jack stand in the retracted position when the latch pins are in the latched position.
Patent CA-2358909-C (CA)
Title: Metal-flake manufacturing apparatus
Inventor: NEBASHI KIYOSHI
IPC: B22F1/062
Filed: 2000-11-02
Granted: 2008-10-14
Abstract: Cooling rolls (11) and (12) are spaced to have a gas of a size greater than thickness of metal thin bodies to be produced. A nozzle (14) is arranged to eject molten metal onto a surface of the cooling roll (11). The first cooling roll (11) quenches molten metal ejected from the nozzle (14) into metal thin bodies. On the next cooling roll (12), the produced metal thin bodies are hit into flakes and excessive molten metal is made into metal thin bodies. Thus, freedom of supplying the molten metal is enhanced and metal flakes can be efficiently produced.
Patent CA-2364657-C (CA)
Inventor: BIEDERMANN LUTZ
IPC: F16B37/00
Filed: 2001-12-07
Granted: 2007-04-17
Abstract: A bone screw, known per se, with a thread section (2) and a receiving part (5) for receiving a rod (29) to be connected to the bone screw is created. The connection and locking of the connection between bone screw and rod takes place via an outer nut (13). So that the connection has the necessary strength and durability, the outer nut (13) has on the inside a sleeve-shaped element (17), having a predetermined inner measurement, the outer diameter of which is almost identical to or slightly smaller than the diameter of the bore (8), and a pressure element (23) arranged therein. The pressure element (22) has at its end facing the floor of the bore (8) a first section (26), the outer measurement of which is larger than the predetermined inner measurement and which effects a widening of the element (17) when pressure is exerted on the rod (29) to be received.
Patent CA-2365262-C (CA)
Inventor: PELLERIN CHARLES
IPC: C12Q1/6897
Filed: 2000-05-01
Granted: 2008-06-10
Abstract: La présente invention concerne le développement d'un système de dosage à base de cellules présentant une sensibilité améliorée à l'activité de la protéase NS3 du virus de l'hépatite C (VHC) par rapport aux dosages connus. Ce système présente une grande utilité pour doser des composés tests permettant de moduler (et en particulier, d'inhiber) l'activité de la protéase NS3 du VHC. Ce système fournit un premier produit de recombinaison comprenant un domaine de transactivateur lié en aval aux domaines NS3-5 du VHC sous le contrôle d'un système promoteur viral non cytopathique. Un deuxième produit de recombinaison est également fourni qui comprend un gène reporter sous le contrôle d'un opérateur sensible à la liaison du transactivateur. Les domaines NS3-5 codent la polyprotéine NS3 qui comprend la protéase NS3, suivie du co-facteur NS4A, les protéines NS4B et NS5A (y compris tout dérivé, toute variante ou tout fragment de ces dernières) terminés par la protéine NS5B (comprenant tout dérivé, toute variante ou tout fragment de cette dernière) suffisante pour constituer un site de clivage NS5A/5B. Le transactivateur, une fois exprimé et libéré par la polyprotéine, initie la transcription et l'expression du gène reporter qui peuvent être mesurées.