baber/WOPTO huggingface dataset:
Patent CA-2193563-C (CA)
Title: Method for manufacturing a pyroelectric mixture
Inventor: DULTZ WOLFGANG
IPC: H01L37/02
Filed: 1996-12-20
Granted: 2003-04-22
Abstract: The present invention relates to a method for manufacturing a pyroelectric mixture, in particular for pyroelectric and piezoelectric elements.  The method that is used to do this includes the following steps: mixing at least two compounds in a predetermined mixing ratio, one compound containing a polymerizable, preferably achiral, liquid crystalline monomer, the other compound being advantageously an achiral liquid crystal polymer or copolymer. Each compound contains substituents that form hydrogen bridges. The mixture is heated above the specific glass point. Next, an electrical field is applied, with the help of which the polymerizable monomer polymerizes and the mixture is poled. With the electrical field applied, the mixture is cooled below the glass point. The pyroelectric coefficient of the mixture that can be achieved lies in the order of magnitude of pyroelectric elements of the PVDF type. Its quality factor is, however, higher than that of the known elements of the PVDF type.
Patent CA-2198522-C (CA)
Inventor: LAMPERT NORMAN ROGER
IPC: G02B6/40
Filed: 1997-02-26
Granted: 2001-11-13
Abstract: A connector 20 for terminating an optical fiber 31 includes a one-piece molded plastic housing 200 having an exterior latch 220 that secures the housing to an associated receptacle 60. The latch is constructed as a cantilever with its fixed end positioned toward a front end of the housing. The housing includes an axial bore 205 for receiving an end portion of the optical fiber into its interior. This passageway extends longitudinally from a back end of the housing toward its front end, and is about half the length of the housing. The connector further includes a cylindrical structure 140-2 which extends longitudinally from a midpoint of the housing toward its front end. The cylindrical structure also includes an axial passageway 145 for receiving the end portion of the optical fiber, and is positioned within the housing such that the passageways are collinear and communicate with each other. Most importantly, the cylindrical structure is rigidly held within the housing and avoids the use of a spring. The connector is particularly useful when used in an end-to-end connection, via an appropriate adapter 600, with a conventional connector 10 that has a spring 160.
Patent CA-2202226-C (CA)
Inventor: NORITAKE YOSHINORI
IPC: B60R13/06
Filed: 1997-04-09
Granted: 2000-01-04
Abstract: An impact energy absorbing structure includes a front pillar (30) including flange joint portions (44, 45) where flanges respectively of an outer panel (38) and an inner panel (40) are overlapped and joined, a pillar garnish (32) disposed with a space (d) from the front pillar, an energy absorber (34) disposed in the space, and a plurality of abutting ribs (36). The abutting rib is farmed so as to bump against the flange joint portion (44) when the pillar garnish deforms outwardly.
Patent CA-2206037-C (CA)
Inventor: GRUENWALD WERNER
IPC: H01P1/203
Filed: 1997-05-23
Granted: 2001-12-18
Abstract: An electrically tunable planar filter has a filter element including a substrate having an upper side and a wave-guide arranged on the upper side of the substrate, at least one tuning element composed of at least one material selected from the group consisting of a ferroelectric material and an antiferroelectric material with adjustable voltage applied to the tuning element and thereby with an adjustable dialectricity constant, the tuning element being arranged at the upper side of the substrate.
Patent CA-2210082-C (CA)
Inventor: DOBROVICH RICHARD J
IPC: H04M3/50
Filed: 1997-07-10
Granted: 2003-12-30
Abstract: An on hold telephony service that allows a party placed on hold, if he is a subscriber to the service, to also place the call on hold and then hang up.  The on hold service can be implemented on a central office switch or an enhanced services platform connected to the switch.  The on hold service is accessed by the party placed on hold, i.e., subscriber, through a transfer function that causes the call to be maintained by the on hold service.  When the party who originally placed the call on hold returns to the call, the on hold service informs him that the service will then call the subscriber so that both parties can be reconnected.
Patent CA-2211772-C (CA)
Inventor: EDENFIELD RANDY C
IPC: B23K7/08
Filed: 1997-07-30
Granted: 2000-10-24
Abstract: A fuel gas and preheat oxygen mixer for a gas torch comprises a bore in the torch head receiving a gas mixing insert having an axially thin peripheral gas mixing recess which receives preheat oxygen and fuel gas from corresponding manifold areas across radially thin metering passages. The gases are mixed in the mixing recess and delivered to the torch tip through delivery passages which, together with the mixing recess and metering passages provide gas flow paths having abrupt directional changes, all of which cooperatively resist flashbacks during use of the torch.
Patent CA-2212972-C (CA)
Inventor: BOGWICZ ROBERT R
IPC: H02P1/44
Filed: 1997-08-13
Granted: 2000-05-09
Abstract: A control circuit for a two speed electric motor includes high and low speed electronic switches. The high speed electronic switch is biased off when the low speed electronic switch is biased on. The low speed run winding of the motor is activatable only through the low speed electronic switch. The high speed run winding of the motor is activatable either directly through a high speed setting of a speed selector switch or through the high speed electronic switch in a low speed setting of the speed selector switch. Upon activation of the motor start winding, the low speed electronic switch is off and the high speed electronic switch is on.
Patent CA-2213719-C (CA)
Title: Preparation translucide a liberation rapide d'analgesiques non steroidiens
Inventor: BREITENBACH JORG
IPC: A61K9/00
Filed: 1996-03-09
Granted: 2005-01-11
Abstract: L'invention concerne des préparations transparentes de principes actifs à libération rapide, obtenues par extrusion de matières en fusion, contenant des analgésiques non stéroïdes, des homopolymères de N-vinylpyrrolidone, des saccharides ou des alcools de sucre et des sels de sodium ou des sels de potassium.
Patent CA-2214481-C (CA)
Title: Device for the treatment of blood through cardiopulmonary bypass and fabrication process
Inventor: THOMAS MICHEL
IPC: A61M1/18
Filed: 1997-09-18
Granted: 2008-11-04
Abstract: Connector (I) for attachment to an inlet of a blood or plasma circulation compartment of a device for extracorporeal blood or plasma treatment comprises a soluble biocompatibility-enhancing substance in an amount such that a durable film of the substance will be deposited on the internal surface of the blood compartment when a predetermined amount of an aqueous solution is passed through the blood compartment via the inlet. Connector (I) for attachment to an inlet of a blood or plasma circulation compartment of a device for extracorporeal blood or plasma treatment comprises a soluble biocompatibility-enhancing substance in a form such that the substance is unchanged when the connector is sterilized by irradiation and in an amount such that a durable film of the substance will be deposited on the internal surface of the blood compartment when a predetermined amount of an aqueous solution is passed through the blood compartment via the inlet.
Patent CA-2217234-C (CA)
Inventor: ANSORGE ULRICH
IPC: B61L3/22
Filed: 1996-03-30
Granted: 2003-05-27
Abstract: L'invention a pour objet un dispositif de transport à système d'alignement avec transfert d'énergie et d'information, pour le transport de marchandises, comprenant un élément transporteur renfermant des éléments pour l'entraînement et l'alignement, des unités de mémoire ainsi que des organes d'entrée-sortie des marchandises (G), et une unité de traitement et de transfert d'information (20), dans lequel l'élément transporteur (10) présente une tête de transfert, comme élément secondaire pour le transfert d'énergie à partir d'un circuit primaire monté le long du parcours, la tête de transfert (2) montée sur un véhicule étant constituée par un noyau de ferrite et par un enroulement secondaire (W¿2?) entourant ce noyau de ferrite, cet enroulement étant couplé magnétiquement avec le circuit primaire (6, 7); le dispositif selon l'invention présente par ailleurs une unité d'entraînement réglable (17) assurant le mouvement de déplacement; en outre, il est prévu, pour ce mouvement de déplacement, des moyens (GL) assurant une compensation, à faible frottement, de la pesanteur et permettant d'obtenir un glissement à faible frottement le long d'une piste; le dispositif de transport comporte également des éléments d'alignement (SP).
Patent CA-2217723-C (CA)
Inventor: HASEGAWA RYUSUKE
IPC: C22C45/00
Filed: 1996-04-12
Granted: 2007-07-03
Abstract: L'invention porte sur un alliage amorphe vitreux essentiellement représenté par la formule: CoaFebNicMdBeSifCg dans laquelle M est sélectionné parmi du molybdène, du chrome et du manganèse et dans laquelle les lettres "a" à "g" représentent un pourcentage atomique, "a" étant compris entre 30 et 45 environ, "b" entre 4 et 40 environ, "c" entre 5 et 45 environ, "d" entre 0 et 3 environ, "e" entre 10 et 25 environ, "f" entre 0 et 15 environ, et "g" entre 0 et 2 environ. Il est possible de mouler cet alliage par solidification rapide dans un ruban, de le recuire pour renforcer ses propriétés magnétiques et de lui donner la forme d'un indicateur particulièrement approprié pour être utilisé dans des systèmes de surveillance d'articles à commande magnéto-mécanique. Pour un meilleur résultat, cet indicateur se caractérise par une réponse d'aimantation relativement linéaire dans un régime de fréquences où des systèmes à indicateurs d'harmoniques fonctionnent de façon magnétique. Les amplitudes de tension que l'on décèle dans cet indicateur sont élevées et une interférence existant entre des systèmes de surveillance se fondant sur une résonance mécanique et une re-radiance harmonique est à peu près éliminée.
Patent CA-2227543-C (CA)
Title: Computer assisted methods for diagnosing diseases
Inventor: BARNHILL STEPHEN D
IPC: G06F19/00
Filed: 1996-07-25
Granted: 2010-10-05
Abstract: The simultaneous multi access reasoning technology system of the present invention utilized both existing knowledge and implicit information that can be numerically extracted from training data to provide a method and apparatus for diagnosing disease and treating a patient. This technology further comprises a system for receiving patient data from another location, analyzing the data in a trained neural network, producing a diagnostic value, and optionally transmitting the diagnostic value to another location.
Patent CA-2230865-C (CA)
Title: Photocatalytic air disinfection
Inventor: GOSWAMI D YOGI
IPC: B01D53/86
Filed: 1996-09-05
Granted: 2004-03-23
Abstract: A method for disinfecting an air stream containing microorganisms including the steps of providing an air stream containing microorganisms having a relative humidity greater than about 40 %; and contacting the air stream with a photocatalyst having a predetermined band gap energy coated on the upstream surface of a filter medium (28) capable of trapping bioaerosols in the presence of a source of photons (24) having a wavelength corresponding to the band gap energy of the photocatalyst, so that at least a portion of the microorganisms in the air stream are destroyed by photocatalytic oxidation.      Devices embodying the method of the invention are disclosed, such as stand-alone devices (80) and devices incorporated into the HVAC systems of buildings, including the air supply registers (210). Photocatalyst-coated filter media (28) capable of trapping bioaerosols are also disclosed.
Patent CA-2236804-C (CA)
Title: High light diffusive and low light absorbent material and method for making and using same
Inventor: MINOR RAYMOND B
IPC: C08J5/18
Filed: 1996-09-23
Granted: 2001-07-31
Abstract: The present invention is an improved material and method for use for providing diffuse transflectance of light. By employing an expanded polytetrafluoroethylene (PTFE) comprising a microstructure of polymeric nodes and fibrils, the material of the present invention demonstrates exceptional diffuse reflectivity and transmission of light across a wide spectrum of ultraviolet, visible, and infrared light. Additionally, the material of the present invention provides many properties that have been previously unavailable in highly diffuse transflective material, including a high degree of malleability, moldability and flexibility, and effective reflectivity even at relatively thin cross sections.
Patent CA-2243167-C (CA)
Inventor: COHEN SAMUEL L
IPC: B60B27/00
Filed: 1997-01-13
Granted: 2003-11-04
Abstract: Cette invention concerne un véhicule pour enfants comprenant une carrosserie (10) en plastique moulé qui possède un système de montage (50) de roues comprenant lui-même un élément cadre (52). Le système de montage des roues est monté sur la carrosserie, l'élément cadre étant en position adjacente par rapport à cette dernière. Une partie saillante (26) dépasse vers le bas depuis la carrosserie de manière à pouvoir pénétrer dans un évidement (56) formé dans l'élément cadre lorsque le système de montage des roues est monté sur la carrosserie, la partie saillante se trouvant en contact étroit avec l'évidement à l'intérieur de celui-ci. La partie saillante et l'évidement permettent ainsi d'assurer l'alignement entre le système de montage des roues et la carrosserie.
Patent CA-2251866-C (CA)
Inventor: NORLANDER LEIF
IPC: D21H17/66
Filed: 1997-04-10
Granted: 2006-05-30
Abstract: The invention relates to preparation of cellulosic pulp capable of being defibrated (fluffed) for the manufacture of an absorbent material intended to be incorporated as a component in absorbent products. The invention is characterized therein that a stock of cellulosic fibres in aqueous suspension is pH-adjusted to 4<pH<8, that at least any water-soluble, non-polymeric aluminium salt is added to the stock, said salt in aqueous solution at said pH forming at least any hydrocomplex with aluminium of the type A1(OH)n x, where n is a number between 1 and 3, and x is 0, + or 2+, that said salt in aqueous solution is caused to act on the cellulosic fibres in said suspension at said pH during a period of time of at least 2min, and that the fibre pulp thereafter is formed to a web, which is dewatered and dried. The invention also relates to the prepared cellulose pulp as such and to its use in absorbent products.
Patent CA-2252731-C (CA)
Inventor: STOCKHOLM ANDREW J
IPC: A61B19/08
Filed: 1997-04-07
Granted: 2007-02-13
Abstract: A linerless, easy to apply surgical incise drape comprising a flexible film which has one major surface coated with a pressure sensitive adhesive and of the opposite major surface coated with a low adhesion backside. The drape is rolled around a cylindrical core. The drape of the invention eliminates the need to use a separate liner to protect the adhesive surface of the drape, reducing the cost of the drape and eliminating waste.
Patent CA-2255040-C (CA)
Inventor: GIORGINI EUGENE
IPC: A62B18/02
Filed: 1997-06-02
Granted: 2003-04-01
Abstract: La présente invention concerne un appareil respiratoire (1, 111) comprenant un régulateur (10, 112) qui distribue de l'air à un utilisateur portant un masque (14, 116), masque auquel ledit régulateur (10, 112) est raccordé par l'intermédiaire d'un adaptateur (12, 114). L'adaptateur comprend une soupape expiratoire (30, 136) qui permet à l'haleine de l'utilisateur de passer de l'adaptateur dans l'atmosphère. Le régulateur comprend une membrane de mesure (46) qui se déplace en fonction de la pression dans le masque. Une soupape principale (58) distribue de l'air au masque sur ouverture d'une soupape pilote (65), laquelle comprend une ouverture pilote (66). Un levier (50) se déplace en réponse à la membrane de mesure et ouvre l'ouverture pilote, provoquant un flux au travers de la soupape principale. L'air provenant de la soupape principale est également distribué dans une chambre à pression positive (74). La pression dans la chambre à pression positive déplace une membrane de pression positive (76) qui entraîne un ressort de pression positive (94), lequel sollicite la membrane de mesure. La sollicitation de la membrane de mesure permet au régulateur de maintenir une pression positive dans le masque. On interrompt la pression positive en actionnant manuellement une soupape d'échappement (108) qui libère la pression de la chambre à pression positive.
Patent CA-2255488-C (CA)
Title: Clay/organic chemical compositions useful as additives to polymer, plastic and resin matrices to produce nanocomposites and nanocomposites containing such compositions
Inventor: ROSS MARK
IPC: C09D7/43
Filed: 1998-12-08
Granted: 2009-04-21
Abstract: This invention is of a hybrid organoclay that consists of an organic chemical/phyllosilicate clay intercalate that has been ion-exchanged with quaternary ammonium compounds. Since this hybrid organoclay is hydrophobic, it can be washed in water to remove reaction salts and excess water soluble or water dispersible polymers to give a clean product via inexpensive means such as filtration. This allows a better dispersing composition to be prepared without the difficulties of isolation presented by prior art which uses energy intensive means to remove the bulk of the water from the final product and cannot be easily washed. In one aspect, the present invention provides a solid clay/chemical composition that comprises: (a) one or more smectite clays, (b) a quaternary ammonium compound which reacts via an ion exchange mechanism with the smectite clay, and (c) one or more non- anionic organic materials that intercalate with the clay. The invention is useful both as an ingredient to form nanocomposites and as a rheological additive.
Patent CA-2256525-C (CA)
Title: Zeolite catalyst and its use in hydrocarbon conversion
Inventor: VERDUIJN JOHANNES P
IPC: C07C5/27
Filed: 1997-05-29
Granted: 2006-07-25
Abstract: There is provided a zeolite bound zeolite catalyst which can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises a first zeolite and a binder comprising a second zeolite. The structure type of the second zeolite is different from the structure type of the first zeolite. The zeolite bound zeolite catalyst finds particular application in hydrocarbon conversion process, e.g., catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions.
Patent CA-2257661-C (CA)
Inventor: ABOU-RACHED ROGER GEORGES
IPC: E02D31/08
Filed: 1994-01-07
Granted: 1999-11-30
Abstract: A method of securing an architectural finish element to a surface ultimately formed by a castable material cast about a mesh material involves securing at least one projection to a backing surface of the architectural finish element such that the projection extends away from the backing surface. The castable material is then cast about the planar mesh material. The projection is then inserted into the castable material before the castable material has set, until the backing surface rests on a surface of the castable material, whereupon the projection cooperates with the mesh material to engage therewith. The castable material is then permitted to set about the projection, thereby firmly securing the architectural finish element to the castable material and the planar mesh material.
Patent CA-2257688-C (CA)
Inventor: PRETORIUS ZAGARIAS HENDRIK JOH
IPC: F41H3/00
Filed: 1997-06-18
Granted: 2005-04-05
Abstract: A camouflage surface for concealment from, and deception of, a herbivorous animal comprises a camouflage pattern made up of at least two different sets of areas which reflect electromagnetic radiation at wavelengths in the near-infrared range of the electromagnetic spectrum. All the areas of each set reflect said near-infrared radiation in the same fashion as one another and in a fashion different from the fashion in which the areas of each other set reflect said radiation. The different sets of areas all have, in the near-infrared range, spectral reflectance curves having reflectance maxima at wavelengths of above 680 nm. Each spectral reflectance curve which the surface has in the visible light range of the electromagnetic spectrum is without a reflectance maximum in the wavelength range of 480 - 680 nm and each spectral reflectance curve which the surface has in the visible light range has a reflectance maximum at a wavelength below 480 nm.
Patent CA-2258214-C (CA)
Inventor: JEWELL DAVID E
IPC: F16L9/127
Filed: 1997-06-23
Granted: 2000-11-14
Abstract: An improved vehicle includes fluid conducting apparatuses such as tubing and fittings which make up a fluid conducting system installed on the vehicle. The material used to make the fluid conducting apparatuses satisfies a specified ratio between the modulus of elasticity and the yield strength of the material. When the fluid conducting apparatuses are filled with frozen water such that the internal volume of the apparatuses has expanded by 10 %, if the material has a modulus of elasticity of less than 20.5 times the yield strength of the material, then the material will not yield but will return substantially to its original shape and dimensions when the stress of the frozen water is removed.
Patent CA-2264718-C (CA)
Inventor: AMSELEM SHIMON
IPC: A61K31/12
Filed: 1997-08-27
Granted: 2006-05-30
Abstract: Lipophilic active ingredient are co-melted with tocopherol polyethyleneglycol succinate ("TPGS") and a dispersion adjuvant to obtain solid dry coprecipitate compositions suitable as an oral dosage form. The solid TPGS coprecipitates of lipophilic active ingredients show improved drug release in vitro and enhanced oral bioavailability in vivo.
Patent CA-2265870-C (CA)
Inventor: PHILLIPS ROBERT JOHN
IPC: B64D13/00
Filed: 1998-07-16
Granted: 2007-04-03
Abstract: A method of testing the performance of a an oxygen supply system (10) in any aircraft including an oxygen supply device (14) adapted to supply oxygen in varying concentrations within a product gas according to demand, in response to control signals (18), a monitoring means (19, 20) to monitor the concentration or partial pressure of oxygen in the product fluid stream, and a control means (20) responsive to the monitoring means to provide the control signals (18) to the oxygen supply device (14), the method being characterised in that the control means (20) provides a predetermined control signal to the oxygen supply device (14) which is expected to respond by supplying a known concentration or partial pressure of oxygen in the product gas (15), a nd monitoring the concentration of oxygen supplied.
Patent CA-2267681-C (CA)
Inventor: SHELDON DAVID A
IPC: B24D3/14
Filed: 1997-10-01
Granted: 2004-03-02
Abstract: A vitreous bonded abrasive grinding wheel comprises silicon carbide abrasive grain, hollow ceramic spheres and a low temperature, high strength bond. The wheel has improved corner or profile holding characteristics and improved mechanical properties and is suitable for grinding non-ferrous materials.