baber/WOPTO huggingface dataset:
Patent CA-2242105-A1 (CA)
Title: High-pressure discharge lamp with a cooled electrode
Inventor: FRANKE DIETER
IPC: H01J61/52
Filed: 1998-06-26
Abstract: Each electrode comprises a shaft (6) and a head (5), the shaft being sealed in a vacuum-tight fashion in each case in an end region (2, 22) of the discharge vessel. At least one electrode is cooled by virtue of the fact that its shaft contains a cooling tube system in which a coolant (11) circulates. Said cooling tube system is surrounded at a spacing by an additional enveloping tube (9, 16), the interspace (10, 20) between the enveloping tube and cooling tube system being fitted with a means of thermal insulation.
Patent CA-2243188-A1 (CA)
Inventor: MCNEILL PAUL ANTHONY
IPC: F16L11/08
Filed: 1996-12-24
Abstract: A flexible plastic water tube (13) which can be stored on a roll has a flexible but substantially inextensible line member (17) attached to it and can include a number of pre-attached drippers. The tube can be stretched between spaced apart supports (11, 12) with the line member preventing undesirable sagging. The tube can therefore be made from inexpensive thin walled plastic.
Patent CA-2246675-A1 (CA)
Inventor: REITH THOMAS
IPC: B01D63/02
Filed: 1997-02-19
Abstract: Cet élément membranaire de filtration comprend au moins un conduit d'écoulement (10) à paroi membranaire, enfermé dans un boîtier (11), une alimentation en fluide (12) reliée à une extrémité dudit conduit (10), une évacuation de rétentat (14) reliée à l'autre extrémité du conduit d'écoulement, ainsi qu'une évacuation de perméat (13) reliée au boîtier (11). Le conduit d'écoulement (10) s'étend de manière hélicoïdale, comme autour d'un axe imaginaire, de manière à ce que si un flux axial principal est établi dans ce conduit (10), il se produise un écoulement secondaire dont le sens d'écoulement soit sensiblement transversal au sens d'écoulement du flux principal. En particulier, le rapport c/a est inférieur à 2,4, a représentant le rayon hydraulique du conduit d'écoulement (10) et c représentant le rayon de l'hélice formée par le conduit d'écoulement.
Patent CA-2248071-A1 (CA)
Title: Heat treated fibers for reinforced dental restorations and method of manufacture thereof
Inventor: KARMAKER AJIT
IPC: A61K6/083
Filed: 1998-09-23
Abstract: A fiber-reinforced composite material for use in dental restorations such as dental bridges, splints, veneers, and laminates, wherein the composite material comprises a glass fiber material which has been heat treated at a temperature less than or equal to the annealing temperature of the glass for a length of time effective to prevent separation and fraying of the edges of the material upon cutting. The heat treatment therefore greatly enhances the ease of preparation of the dental restorations.
Patent CA-2249001-A1 (CA)
Title: Thermoplastic moulding compound, method of producing it and its use
Inventor: MEYERHOFF HANS-PETER
IPC: C08L23/04
Filed: 1997-03-07
Abstract: The invention concerns thermoplastic moulding compounds containing a) 5-95 parts by wt. of polyolefin selected from the group comprising polyethylene and polypropylene; b) 5-65 parts by wt. of uncrosslinked ethylene/propylene copolymer rubber with an ethylene content of 45-80 % by wt. relative to the total amount of rubber and/or 5-65 parts by wt. of cycloolefin copolymer with an ethylene content of 20-50 % by wt. relative to the cycloolefin copolymer and/or 5-65 parts by wt. of polyolefin elastomer made of unsaturated ethylene/octene copolymer with a melt flow index of 0.5-18 g/10 min; c) 15-60 parts by wt. of an ionomeric copolymer of ethylene and an .alpha.,.beta.-unsaturated carboxylic acid or the anhydride of such a carboxylic acid, the ionomer containing carboxylic acid groups neutralized with metal ions selected from the group comprising sodium, potassium, calcium, magnesium and zinc; d) 0-65 parts by wt. of an .alpha.,.beta.-unsaturated ethylenic carboxylic acid compound, or an ester thereof, selected from the group comprising acrylic acid and methacrylic acid; e) 0.01-5 parts by wt. of an epoxy compound of formula (I) in which n = 0 to 10, R1 = hydrogen or an alkyl, aralkyl or aryl group and R2 is an alkyl, aralkyl, alkylalkoxy, cycloalkyl or cycloalkenyl group and R3 is a group of formula (II) when n  0 but R3 is hydrogen when n = 0, or mixtures of these compounds; f) 0.01-5 parts by wt. of a carboxylic acid of the formula (III) R4-CH=CH-COOH in which R4 is a phenyl, naphthyl, cyclohexyl or cyclohexenyl group, or C1-C4 alkyl and/or alkoxy derivatives of the compound of formula (III). The invention also concerns a method of producing a thermoplastic moulding compound of this kind and its use in the manufacture of mouldings.
Patent CA-2249161-A1 (CA)
Inventor: IRISAWA JUN
IPC: G02B1/04
Filed: 1998-10-01
Abstract: A graded-refractive-index optical plastic material comprising an amorphous fluorine-containing polymer (A) having substantially no C-H bond, and at least one fluorine-containing polycyclic compound (B) having a refractive index higher by at least 0.005 than the fluorine-containing polymer (A), wherein the fluorine-containing polycyclic compound (B) is distributed in the fluorine-containing polymer (A) with a concentration gradient such that the concentration decreases in a direction of from the center to the periphery, and the fluorine-containing polycyclic compound (B) is at least one fluorine-containing polycyclic compound selected from the group consisting of the following compounds (B1),  (B2) and (B3):   (B1) a fluorine-containing non-condensed polycyclic compound having at least two fluorine-containing rings bonded by a bond containing at least one member selected from the group consisting of a triazine ring, an oxygen atom, a sulfur atom, a phosphorus atom and a metal atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring and having a fluorine atom or a perfluoroalkyl group, said polycyclic compound having substantially no C-H bond;   (B2) a fluorine-containing non-condensed polycyclic compound having at least three fluorine-containing rings bonded directly or by a bond containing a carbon atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring and having a fluorine atom or a perfluoroalkyl group, said polycyclic compound having substantially no C-H bond;   (B3) a fluorine-containing condensed polycyclic compound which is a condensed polycyclic compound composed of at least three carbon rings or heterocyclic rings, and which has substantially no C-H bond.
Patent CA-2249995-A1 (CA)
Inventor: LI HAODONG
IPC: C12N15/00
Filed: 1996-03-18
Abstract: Human chemokine Alpha-3 polypeptides and DNA (RNA) encoding such chemotactic cytokines and a procedure for producing such polypeptides by recombinant techniques is disclosed. Also disclosed are methods for utilizing such chemotactic cytokines for the treatment of leukemia, tumors, chronic infections, auto-immune disease, fibrotic disorders, sepsis, wound healing and psoriasis and to stimulate stem cell mobilization. Antagonists against such chemotactic cytokines and their use as a therapeutic to treat rheumatoid arthritis, auto-immune and chronic and acute inflammatory and infective diseases, allergic reactions, prostaglandin-independent fever, ARDS and bone marrow failure are also disclosed. Also disclosed are diagnostic assays for detecting diseases related to mutations in the nucleic acid sequences and altered concentrations of the polypeptides. Also disclosed are diagnostic assays for detecting mutations in the polynucleotides encoding the chemotactic cytokines and for detecting altered levels of the polypeptide in a host.
Patent CA-2250054-A1 (CA)
Title: Production de plaques lithographiques sans eau
Inventor: SMITH CAROLE-ANNE
IPC: G03F7/075
Filed: 1997-03-19
Abstract: L'invention concerne un précurseur de plaque lithographique sans eau qui comprend, sur une plaque d'aluminium, une composition sensible à la lumière constituée d'un polymère pourvu de groupes fonctionnels hydroxy, d'un générateur d'acide qui, exposé à la lumière, produit un acide et un silyléther de la formule générale (I), dans laquelle Rf représente un groupe fluoroaliphatique possédant de 3 à 10 atomes de carbone, Y représente oxygène, SO¿2?, carbonyle ou une liaison directe, X représente NR¿4? où R¿4? représente hydrogène ou un alkyle inférieur possédant jusqu'à 6 atomes de carbone, ou bien est une liaison directe, chacun des symboles R¿1?, R¿2? et R¿3? représente un groupe alkyle inférieur possédant jusqu'à 6 atomes de carbone et R¿5? représente un groupe alykle inférieur possédant jusqu'à 6 atomes de carbone.
Patent CA-2250091-A1 (CA)
Title: Sunflower seeds with enhanced saturated fatty acid contents
Inventor: WANG LIJUAN
IPC: A23L33/00
Filed: 1997-02-10
Abstract: Antisense expression of a stearoyl-ACP desaturase gene in sunflower results in more than a four-fold increase in seed stearate, and can enhance palmitate content as well. Thus, sunflower oil containing over 40 percent saturated fatty acids can be produced, which is desirable in the context of various products, such as coating fat, margarine, soap and shortening.
Patent CA-2250225-A1 (CA)
Inventor: BAKER ELLEN SCHMIDT
IPC: C11D1/62
Filed: 1996-03-29
Abstract: L'invention concerne l'utilisation d'un adoucissant pour textiles, comprenant au moins un composant adoucissant améliorant l'aspect du tissu.
Patent CA-2254334-A1 (CA)
Inventor: FORBES RANDOLPH L
IPC: F23J13/02
Filed: 1998-11-18
Abstract: A sleeve compression system for use with a hot gas conduit having an outer pipe, a ceramic sleeve within the pipe having a lesser outer diameter than the inner diameter of the pipe, and axially movable within the pipe, for the passage of very hot gases therethrough; a pre-loading compression module is located at the downstream end of the conduit, providing a force acting in an up-stream direction against the sleeve elements, to hold the sleeve elements compressed in the up-steam direction. The module has an outer pipe; at least one spring located outside the pipe connected in axial compresive relation with a ceramic sleeve within the module, to maintain the application of pre-determined, limited compressive axial force on the sleeve at all times. The module ceramic sleeve is securely contained within a metal sleeve to form a slider element within the pipe, the metal sleeve being diametrically dimensioned to provide a smooth sliding fit within the surrounding pipe. The metal sleeve connects through slots in the pipe wall with a pair of light springs secured to the outside of the pipe, so that the spring force is applied symetrically to the metal sleeve. An intermediate adjustable portion of ceramic sleeve connects the slider in compressive relation with the ceramic sleeve of the conduit. A muff coupling secures the compression module in removably secured relation with the conduit.
Patent CA-2254827-A1 (CA)
Inventor: PANANDIKER RAJAN KESHAV
IPC: C11D1/29
Filed: 1997-05-16
Abstract: Detergent composition comprising a peroxygen bleach, a bleach activator, a non-AQA surfactant and an alkoxylated quaternary ammonium (AQA) cationic surfactant.
Patent CA-2257844-A1 (CA)
Title: Polymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such polymers and additives and use thereof
Inventor: EMERT JACOB ISAAC
IPC: C08F8/00
Filed: 1997-06-11
Abstract: Polymers (including copolymers) derived from one or more olefins, such including ethylene and C3-C20 .alpha.-olefins such as propylene and 1-butene, which polymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the polymer chains comprising the polymer; (c) at least about 50 % of said branches being methyl and/or ethyl branches; (d) at least about 30 % of said polymer chains terminated with a vinyl or vinylene group; (e) a number average molecular weight, Mn, or from about 300 to about 15,000 when the polymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (f) substantial solubility in hydrocarbon and/or synthetic base oil. The polymers are produced using late-transition-metal catalyst systems and, preferably, inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel and lubricating oil additives, particularly dispersants, wax crystal modifiers and flow improvers, are produced. Where functionalization and derivatization of these polymers is required for such additives it is facilitated by the olefinic structures available in the polymer chains.
Patent CA-2257851-A1 (CA)
Inventor: WEI HENRY
IPC: A61K38/00
Filed: 1997-05-23
Abstract: Proteins which are upregulated in injured or regenerating tissues, as well as the DNA encoding these proteins, are disclosed, as well as therapeutic compositions and methods of treatment encompassing these compounds.
Patent CA-2260370-A1 (CA)
Title: Thermal fatigue and shock-resistant material for earth-boring bits
Inventor: LIANG DAH-BEN
IPC: C22C29/08
Filed: 1999-01-27
Abstract: Thermal fatigue and shock resistant materials have been disclosed. Such materials have a thermal conductivity exceeding a minimal value as determined by K min = 0.00102X2 - 0.03076X + 0.5464, where K min is minimal thermal conductivity in the units of cal/cm.cndot.s.cndot.°K, and X is cobalt weight percentage. Demented tungsten carbide with coarse tungsten carbide grains and a low cobalt content meet this criterion. The thermal conductivity of this type of cemented tungsten carbide may be further enhanced by using tungsten carbide of coarser grains and higher purity. By adjusting the tungsten carbide grain size and the cobalt content, a desired toughness and hardness may be achieved while still maintaining a relatively high thermal conductivity. Such materials have applications in forming inserts and other cutting elements.
Patent CA-2262991-A1 (CA)
Title: Coronary shunt and method of use
Inventor: ADAMS CRAIG L
IPC: A61F2/00
Filed: 1997-07-16
Abstract: This invention is a coronary shunt (800B) for occluding both sides of an anastomosis site, and providing a blood flow path across the anastomosis site. The shunt includes two occluding members (802B) sized and configured to occlude the coronary artery. A tether (808) is attached to the coronary shunt, and is used to remove the coronary shunt from the coronary artery before completing the anastomosis.
Patent CA-2263627-A1 (CA)
Inventor: LAU ROBERT G
IPC: H05K5/02
Filed: 1999-03-12
Abstract: An electrical enclosure includes a frame and a seismic subframe. The seismic subframe includes vertical frame members interconnecting with braces at the top and bottom and opening at the front and rear of the enclosure. The assembly mounts to the rectangular frame of the enclosure. Grid straps extend from front to rear to connect the assemblies and provide additional bracing. Front and rear panels include gusset type braces at the corners mounted to the panels that engage inner edges of the framework to provide positioning as well as support.
Patent CA-2266594-A1 (CA)
Inventor: BAKER JOHN R
IPC: E05C1/14
Filed: 1997-10-06
Abstract: A latch mechanism which includes exterior (20) and interior (30) handle assemblies connected by a bar (10) with a cammed surface (10C) such that the latch mechanism can be actuated by pushing, pulling or turning a handle. Pushing or turning the exterior handle causes the bar to contact a cam follower (12) on a receiver (2) whose edge will rotate a lever (8) to retract a bolt (7). Also, pulling or turning the interior handle produces the same result. Once the bolt is retracted, and the handle is released, a spring (4) biases the bolt back to the extended position.
Patent CA-2267234-A1 (CA)
Title: Dispositif de decompression synchronise pour compresseur a gaz et procede correspondant
Inventor: SPERRY LAUREN D
IPC: F04B49/02
Filed: 1996-10-02
Abstract: L'invention porte sur un dispositif de décompression pour un compresseur à gaz (4), comportant un cylindre (6), un piston (8) monté dans le cylindre de façon à y effectuer un mouvement alternatif, un vilebrequin (10) rattaché au piston et des ensembles de soupapes d'aspiration et de décompression (12, 14) mettant, de façon sélective, le cylindre en communication avec des conduites d'aspiration et de d'évacuation (16, 18). Le vilebrequin du compresseur est actionné par une machine motrice (20). Ce dispositif de décompression comporte un ensemble soupape de décompression, pouvant être constitué d'ensembles soupapes d'aspiration et de décompression, ainsi qu'un dispositif d'actionnement du dispositif de décompression (21) comprenant une unité de commande (68) et un moteur pas-à-pas (62). L'ensemble soupape de décompression comporte un siège de soupape (30) pourvu de plusieurs passages de siège (26) disposés en rangées dans un cercle conçu à cet effet. Le dispositif d'actionnement du dispositif de décompression (21) met en rotation un arrêt (40) d'ensemble soupape de décompression et des éléments de soupape (50) montés sur cet arrêt et ce, par paliers correspondants à l'écartement radial des éléments de soupape et des passages de siège, chaque rotation par palier correspondant à un seul tour du vilebrequin. Le procédé de décompression du compresseur consiste à disposer plusieurs éléments de soupape et de passages de siège en cercle dans un ensemble soupape de décompression et à faire tourner de façon incrémentielle l'arrêt de soupape en synchronisation avec le vilebrequin du compresseur.
Patent CA-2269012-A1 (CA)
Inventor: NATHAN GUY
IPC: H02J9/00
Filed: 1999-04-12
Abstract: Dispositif d'alimentation électrique sécurisée pour système de reproduction audiovisuelle comprenant une alimentation (2) principale connectée à une source (1) de courant électrique, délivrant par des connexions (20) électriques au moins une tension déterminée à une unité centrale (6), cette unité centrale comprenant un programme (60) d'exploitation informatique comprenant un programme (62) de fermeture et de sauvegarde des fichiers du système informatique et un programme (62) de démarrage caractérisé en ce que le dispositif comprend également des moyens (4) de détection d'une chute, en deçà d'un seuil déterminé, d'une tension déterminée délivrée par l'alimentation (2) principale, des moyens (11, 12, 13) d'accumulation quasi instantanée d'énergie électrique connectés d'une part à la source (1) de courant électrique, et d'autre part à une alimentation (10) de secours délivrant à l'unité centrale (6) des tensions suffisantes à son fonctionnement, par un circuit de substitution automatique de l'alimentation de secours (10) à l'alimentation (2) principale et des moyens (5) de déclenchement d'une procédure de sauvegarde après un intervalle de temps déterminé.
Patent CA-2269309-A1 (CA)
Inventor: HYSLOP WILLIAM J
IPC: F16L25/00
Filed: 1999-04-14
Abstract: A connection assembly for an exhaust extraction system which is designed to vent the exhaust from a vehicle tail pipe includes, in combination, three primary components. The first component is an annular sleeve which is constructed and arranged to assemble onto the vehicle tail pipe. A band clamp is used for this connection in order to establish a leak-free interface. Next, there is a nozzle locator ring which slides onto the annular sleeve such that one end of the sleeve extends beyond one side of the nozzle locator ring and the opposite end of the sleeve extends beyond the opposite side of the nozzle locator ring. There is an offset portion intermediate the ends of the annular sleeve which serves as an abutment for the nozzle locator ring. The third major component of the connection assembly is an exhaust nozzle assembly which includes, as its primary components, a generally cylindrical nozzle constructed of a thick walled synthetic material designed for moderate flexibility and a pair of magnet packs located circumferentially 180 degrees apart. The exhaust nozzle assembly is designed to slide onto and fit up against the nozzle locator ring. Once the nozzle is securely seated, the two magnet packs are in position to contact the outer surface of the annular sleeve. Each magnet pack is designed with pole pieces which sandwich a plurality of magnets therebetween and the pole pieces are able to pivot which facilitates the assembly as well as the disassembly of the exhaust nozzle assembly relative to the nozzle locator ring.
Patent CA-2269486-A1 (CA)
Inventor: MATSUZAKA HIDEKI
IPC: B42D15/10
Filed: 1999-04-21
Abstract: A sublimating card printing apparatus can be minimized with a simple construction and can provide multiple functions. A sublimating card printing apparatus for recording predetermined information in a magnetic recording medium and/or semiconductor memory provided on a card material and moreover, for printing an image based on a supplied printing signal on a card material, comprises a rotary transporting means for switching a transporting direction of the card material rotatably provided on the last of a linear transport path on the card material, a card tray for containing the card material through the rotary transporting means in the case where errors occur in recording in a recording/reproducing means of the magnetic recording medium or a recording/reproducing means of a memory recording medium, and a memory recording/reproducing means provided on the rotary transport path through the rotary transporting means. Therefore, the length of the transport path can be reduced and the card tray can be contained in the apparatus and thus, the whole apparatus can be minimized with multiple functions.
Patent CA-2271119-A1 (CA)
Inventor: CHRISTENSEN JAN VILHELM
IPC: E06B3/38
Filed: 1997-11-14
Abstract: The sash structure of the window is hingedly connected (13-15; 51-53) with the frame structure for pivoting about a horizontal axis. The top, bottom and side members (1, 2, 4, 5; 31, 32, 34, 35) of the frame and sash structures are made from wood profiles with exterior cladding members (16-18; 46, 48) of weatherprotecting material, and the top, bottom and side members (1, 2; 31, 32) of the frame structure are constituted by profiles with substantially parallelogram-shaped cross section with exterior edge faces (6; 36) positioned in a common plane, with which the adjacent opposite side faces (7, 8; 37, 38) of the profile cross section form an angle of 95 to 140~, and the exterior cladding members overlap, in the closed position of the window, the spaces between the sash and frame structure and the hinge connection between them. The window may either be a pivoting window, in which the exterior cladding members (17) above the hinge connection (13-15) are connected with the frame structure and below the hinge connection to the sash structure, or be tophung, in which case the top, bottom and side members (34, 35) are likewise constituted by profiles with substantially parallelogram-shaped cross section.
Patent CA-2272689-A1 (CA)
Title: Method for improving wastewater treatment
Inventor: DICKERSON J RODNEY
IPC: C02F3/12
Filed: 1997-11-24
Abstract: A method of treating wastewater prior to being processed within a wastewater treatment facility is provided, wherein the wastewater is delivered to the wastewater treatment facility by a collection piping system (1-4) having an interior surface, and wherein the wastewater includes a predominant waste material, the method comprising: introducing select microbes into the piping system in an amount proportional to the surface area of the interior surface of the piping system, wherein the select microbes are capable of completely consuming the predominant waste material in the wastewater, until a biomass comprising almost entirely the select microbes is formed along the interior surface of the piping system (5); monitoring the biological oxygen demand (BOD) level of the wastewater at a downstream location immediately prior to the wastewater treatment facility in comparison to a desired BOD level; and adjusting the introduction of the select microbes into the piping system in proportion to the average downstream flowrate of the wastewater through the piping system to minimize the difference between the monitored BOD level and the desired BOD level.