baber/WOPTO huggingface dataset:
Patent CA-2300172-A1 (CA)
Title: In-situ rheology modification of polyolefins
Inventor: MULLINS MICHAEL J
IPC: C08J9/10
Filed: 1998-08-13
Abstract: The present invention includes an improved process for the preparation of rheology modified polyolefins, either alone or as blends, that remain thermoplastic and melt processable and possess improved melt strength by (a) heating a substantially uniform admixture of a polyolefin and a rheology modifying amount of a poly(sulfonyl azide) in the same vessel. The process of the invention is particularly applicable to polyolefins which comprise greater than 50 mole percent monomer having at least one tertiary hydrogen atom, preferabl propylene polymers.
Patent CA-2302879-A1 (CA)
Inventor: VANAMBURG RAYMOND
IPC: A47C7/70
Filed: 2000-03-20
Abstract: In a table device for supporting office related equipment and providing a general area to perform other general light tasks with regards to computer operation or general writing of formats and reading. It is known to have long arms protruding lengthwise from the top of the attachment unit, and able to be maneuvered in such a way thus enabling the attached table to be adjusted manually by the user and to the user's desired position. The main base of the devise more overly called the "chair attachment unit" is attached to the back of the chair. The attachment unit is designed in such a way that it provides a solid, secure fit to the upper portion of the back of the chair, not allowing any side to side or up and down movement whatsoever. This invention enables the user to work in a more convenient and comfortable position compared to other present, conventional methods.
Patent CA-2303380-A1 (CA)
Inventor: GODIK EDUARD E
IPC: A61B5/00
Filed: 1998-03-20
Abstract: L'invention concerne un ensemble porte-objet non rigide utilisé pour examiner un objet et constitué de ce qui suit: un socle (6); un premier élément (5) et un second élément (2) montés mobiles l'un par rapport à l'autre et par rapport au socle (6); un mécanisme (8) pour déplacer de manière contrôlée les éléments l'un par rapport à l'autre et par rapport au socle. Une première membrane souple (4) est attachée au premier élément (5) et une seconde membrane souple (1) est attachée au second élément (2), la première et la seconde membranes souples formant un premier et un second composants gonflables (4', 1') qui tiennent entre eux un objet à examiner. Un système de pression (11, 19) relié de manière fonctionnelle au premier et au second composants gonflables sert à gonfler de façon contrôlée chacun des composants gonflables. Une source de rayonnement électromagnétique (14) en association optique avec les composants gonflables sert à fournir un faisceau lumineux à l'objet, un système optique de détection (15) en alignement optique avec la source de rayonnement électromagnétique (14) servant à recevoir ledit rayonnement électromagnétique passant à travers l'objet et/ou rétrodiffusé par celui-ci.
Patent CA-2303450-A1 (CA)
Inventor: CORDERY ROBERT A
IPC: G07B17/00
Filed: 2000-03-30
Abstract: A method for certification by a plurality of certifying authorities of the public key of a user wishing to communicate using a public key encryption system while asserting only a subset of rights. A plurality of certifying stations and a user station exchange information and the user station derives a plurality of private keys from the exchanged information. The certifying stations also publish related information and their public keys. The user communicates using a private key formed by summing selected ones of said plurality of private keys corresponding to asserted rights. A third party can derive the public key corresponding to the user's summed private key by operating on the published information with a summation of the certifying station public keys.
Patent CA-2304410-A1 (CA)
Title: Collapsible baby jogging stroller
Inventor: EVERETT RICHARD C
IPC: B62B7/10
Filed: 2000-04-03
Abstract: A collapsible frame assembly for a three-wheeled jogging stroller with demountable wheels and a removable cloth-like seat and canopy arrangement. The frame assembly includes a primary fore to aft main structural member with a rear axle assembly having a member of an enlarged diameter tubular construction with couplers at opposite ends thereof for supporting demountable or removable large diameter spoked wheel pneumatic tires with the axles thereof canted so that the wheels are downwardly divergent relative to the ground. A  generally U-shaped handle member is affixed to the rear axle tube and dimensioned, configured and positioned for convenient gripping by a user. A T-shaped interconnection mechanism has the leg thereof secured to one end of the main structural member and the crossbar portion thereof receiving the tube of the rear axle assembly therein in perpendicular relation to the main structural member. The interconnection mechanism includes a cam lock device which enables selective relative sliding movement between the rear axle within the cross-bar portion from a first locked position with the handle member generally transverse to a plane formed by the main structural member and the rear axle tube and a second unlocked position with the handle and rear axle assembly pivoted toward the main structural member for positioning the handle proximate the main structural member. The front end of the main structural member has secured thereto a front fork receiving block assembly with a footrest attached on the structural member above the assembly. The block assembly has a vertical sleeve bearing or bushing therethrough for receiving the caster post of the fork assembly for the front wheel. The fork assembly and block assembly are matingly coactingly configured and arranged for enabling selection of front wheel movement to one of two positions - a first locked straight ahead position and a swivel caster position through an angle of about 180 degrees.
Patent CA-2304899-A1 (CA)
Title: New use of selective serotonin reuptake inhibitors for treatment of human patients with chest pain of non-cardiac origin or with gastro-esophageal reflux disease
Inventor: VARIA INDIRA
IPC: A61K31/445
Filed: 2000-04-07
Abstract: Selective serotonin reuptake inhibitors useful in the treatment of non-cardiac chest pain or the treatment of symptoms of gastro-esophageal feflux disease.
Patent CA-2304951-A1 (CA)
Inventor: MILSTEIN SAM J
IPC: A61K38/095
Filed: 1998-09-29
Abstract: Methods for transporting a biologically active agent across a cellular membrane or a lipid bilayer. A first method includes the steps of: (a) providing a biologically active agent which can exist in a native conformational state, a denatured conformational state, and an intermediate conformational state which is reversible to the native state and which is conformationally between the native and denatured states; (b) exposing the biologically active agent to a complexing perturbant to reversibly transform the biologically active agent to the intermediate state and to form a transportable supramolecular complex; and (c) exposing the membrane or bilayer to the supramolecular complex, to transport the biologically active agent across the membrane or bilayer. The perturbant has a molecular weight between about 150 and about 600 daltons, and contains at least one hydrophilic moiety and at least one hydrophobic moiety. The supramolecular complex comprises the perturbant non-covalently bound or complexed with the biologically active agent. In the present invention, the biologically active agent does not form a microsphere after interacting with the perturbant. A method for preparing an orally administrable biologically active agent comprising steps (a) and (b) above is also provided as are oral delivery compositions. Additionally, mimetics and methods for preparing mimetics are contemplated.
Patent CA-2305173-A1 (CA)
Inventor: KOISTINEN TOMMI
IPC: H04L49/111
Filed: 1998-10-16
Abstract: The present invention relates to a mobile communication system which comprises a base station (BTS1) having a data transmission connection to a mobile services switching centre (MSC) through a transcoder unit (TRCU). In order to improve the data transmission connection between the base station and the transcoder unit, the data transmission connection in question is partly composed of a packet-switched data transmission connection (4) to which a converter means (3) is arranged comprising means for converting the TRAU frame received into a packet to be transmitted over the packet-switched connection (4), the conversion including the removal of bits included in the TRAU frame and not needed on the packet-switched connection (4).
Patent CA-2308799-A1 (CA)
Inventor: LYNCH KEVIN R
IPC: G01B21/08
Filed: 1998-10-20
Abstract: A system and corresponding method for bulge testing films (e.g. thin films (57), coatings, layers, etc.) is provided, as well as membrane structures (47) for use in bulge testing and improved methods of manufacturing same so that resulting membrane structures have substantially identical known geometric and responsive characteristics. Arrayed membrane structures, and corresponding methods, are provided in certain embodiments which enable bulge testing of a film(s) over a relatively large surface area via a plurality of different freestanding membrane portions. Improved measurements of film bulging or deflection are obtained by measuring deflection of a center point of a film, relative to nondeflected peripheral points on the film being tested.  Furthermore, membrane structures are adhered to mounting structure in an improved manner, and opaque coatings may be applied over top of film(s) to be bulge tested so that a corresponding optical transducer (49) can more easily detect film deflection/bulging. In certain embodiments, a laser triangulation transducer is utilized to measure film deflection/bulging.
Patent CA-2309625-A1 (CA)
Title: Transcription based amplification of double stranded dna targets
Inventor: SCHUKKINK ADRIANA FREDERIEKE
IPC: C12Q1/6865
Filed: 1998-11-11
Abstract: The present invention is directed to a transcription based amplification method for the amplification of DNA targets. With the method of the present invention an isothermal transcription based amplification method is provided for the amplification of double stranded DNA.  The method of the present invention for the amplification of double stranded DNA comprises the steps of contacting said double stranded DNA with at least one oligonucleotide comprising a sequence complementary to a part of the first of the two DNA strands comprised in the double stranded DNA, said oligonucleotide further comprising the sequence of a promoter recognized by a RNA polymerase; a further olignucleotide comprising a sequence complementary to a part of the second strand comprised in the double stranded DNA; an enzyme having RNA dependent DNA polymerase activity; an enzyme having DNA dependent DNA polymerase activity; an enzyme having RNase H activity; an enzyme having RNA polymerase activity; and maintaining the thus created reaction mixture under the appropriate conditions for a sufficient amount of time for the amplification to take place. The method according to the invention is particularly useful for amplifying small DNA molecules, e.g. plasmid DNA. Surprisingly, transcription based amplification can start from double stranded DNA, without the need to treat the DNA with restriction enzymes or, what is more important, to separate the strands before hand by applying heat. All reagents conventionally used with isothermal transcription based amplification reactions can simply be used on starting material containing double stranded DNA, as if it where single stranded RNA. With the present invention it has now been found that essentially the same protocols can be used for isothermal transcription based amplification of double stranded DNA. The method is particularly useful for the detection of small DNA molecules of pathogenic microorganisms enabling diagnosis. In particular the circular HIV-1 DNA molecules that are formed during the replication of the HIV-1 virus can be detected by this method. Detection of such circular HIV-1 DNA molecules indicates active replication of the virus, which can be correlated with disease progression, i.e. development of AIDS.
Patent CA-2311692-A1 (CA)
Inventor: LEDIG WALTER O
IPC: G01N33/00
Filed: 2000-06-15
Abstract: Described is apparatus and a process for analyzing a volatile composition such as a perfume composition located on the surface and/or in the interstices of a planar pliable porous substrate such as a towel section. A planar surface of the substrate which contains the volatile composition is initially juxtaposed adjacent a solid wall (e.g., glass frit) porous to a nonreactive carrier gas such as air, nitrogen or carbon dioxide, and fully and tightly covers the porous section of the wall. The carrier gas is passed through the porous section of the wall and then through the pliable porous substrate section which is adjacent to the wall; after which the carrier gas contains molecules of each component of the volatile composition. The composition-carrier gas mixture is then passed through a trapping substance (e. g., TENAX R) which entraps the molecules of each component of the volatile composition. The volatile composition is then analyzed (e. g., using GLC and NMR techniques) after removing the trapping substance containing the entrapped molecules from the apparatus.
Patent CA-2311857-A1 (CA)
Title: System and method to facilitate sharing of information
Inventor: STEWART ERIK VILJO
IPC: G06Q30/00
Filed: 2000-06-15
Abstract: A method and system to facilitate sharing of information amongst users comprises assessing a degree of commonality between each of the users. Once a degree of commonality between the users is assessed, information is shared amongst the users having an assessed degree of commonality greater than a predetermined degree of commonality. In this way, the information being shared is most likely to be useful because it is being shared by users having common traits and characteristics. The degree of commonality can be assessed by comparing areas of interest of the users. The information on the areas of interest may comprise search criteria independently developed by each user to search for information or utilize resources in a network. The degree of commonality may also be assessed by recording each occurrence when a user accepted or did not accept information obtained from each other user.
Patent CA-2312718-A1 (CA)
Inventor: CARSTENS BERNT
IPC: B62B5/02
Filed: 1998-11-17
Abstract: L'invention concerne un dispositif à moteur (10) pour monter des escaliers, servant au transport d'appareils et de marchandises, notamment de fauteuils roulants (9) avec des personnes invalides. Le fauteuil roulant (9) est fixé de façon libérable sur le dispositif (10) et présente essentiellement un cadre stable (101) à l'intérieur duquel se trouve une source d'énergie (8.1, 8.2), un arbre d'entraînement (18), un système de commande d'entraînement, des palpeurs (7, 131, 132), des détecteurs (70) et un mécanisme de levage permettant de monter des escaliers. Ledit dispositif est caractérisé en ce qu'il présente un dispositif d'appui (30, 33) qui prend appui sur une des marches suivantes (1.2, 1.3). Le centre de gravité (5) de l'ensemble formé par le dispositif (10), le fauteuil roulant (9) et la personne invalide se trouve entre les points d'appui de la roue (12) ou du dispositif d'appui (30, 330) sur les marches (1.1, 1.2, 1.3)
Patent CA-2313234-A1 (CA)
Title: Roof-mounted oxygen-fuel burner for a glass melting furnace and process of using the oxygen-fuel burner
Inventor: LEBLANC JOHN R
IPC: C03B5/00
Filed: 1998-12-16
Abstract: According to the present invention there is provided a refractory lined glass melter for producing refined glass from raw glass-forming material using at least one oxygen-fuel burner recessed within a burner block mounted in the roof of the furnace and a process of using the burner. The velocities of the gaseous fuel and of the oxygen from the oxygen-fuel burner are controlled such that the velocities of the gaseous fuel and the oxygen are substantially equivalent to provide a generally laminar gaseous fuel and oxygen flow to combust proximate a top surface of the raw glass-forming material and produce a flame which impinges the surface of the raw glass-forming material and which has a middle portion of a columnar shape.
Patent CA-2314364-A1 (CA)
Title: Discrimination procedure of a wanted signal from a plurality of cochannel interfering signals and receiver using this procedure
Inventor: MARGHERITA FULVIO
IPC: H01Q3/26
Filed: 1998-12-14
Abstract: It is described a discrimination procedure of a wanted signal from a plurality of cochannel interferents received by array antennas of GSM or DCS base transceiver stations. The procedure includes a phase for the estimate of the number and arrival directions of the interferents, and of the wanted signal, followed by a spatial filtering phase in which the signals transduced by the sensors of the array are linearly combined among them through multiplication coefficients, or weights, organized in a vector w satisfying the two following conditions: A) Spatial filtering constrains the gain of the array in the ratio between wanted signal and noise, compared to the traditional use of a single sensor, so that the gain is not less than a properly selected threshold; B) it minimizes the ratio between the sum of interferents' powers and wanted signal power.
Patent CA-2315184-A1 (CA)
Title: Intake device for use with internal combustion engines
Inventor: BUSWELL MARK L
IPC: F02M19/08
Filed: 1998-12-17
Abstract: A device for use in an intake path of an internal combustion en-gine includes a body portion (21) having an upper surface (23) and a lower surface (25). The body por-tion includes at least one passage (24) surface defining at least one passage about an axis from the upper surface to the lower surface. The passage surface further defines a plurality of channels about the axis of the pas-sage. Each channel extends from a channel opening in the upper surface to a channel opening in the lower sur-face. Further, the device may include a passage surface that is a continu-ous surface from the upper surface of the body portion to the lower surface of the body portion. The continu-ous surface extends from a first open-ing of the passage inward towards the axis of the passage and then further extends away from the axis towards a second opening of the passage at the lower surface of the body portion forming a venturi through the device.
Patent CA-2317860-A1 (CA)
Inventor: ORCUTT ERIC D
IPC: F16L33/213
Filed: 2000-09-08
Abstract: A swivel fitting includes a first annular member and a second annular member. The first annular member has a second end which is threaded and a first end which receives the first end of the second annular member. The second annular member has a second end which is received within a tube or hose. The members are coupled together by expanding a frusto-conical end section of the second annular member within the first annular member, so that a radial lip on the frusto-conical section seats within an annular grove formed within the first annular member.  The swivel fitting is sealed with an O-ring which is sandwiched between the radially extending stop on the first annular member and a shoulder on the second annular member.
Patent CA-2318012-A1 (CA)
Inventor: MORI HIDEFUMI
IPC: H01M8/04
Filed: 2000-09-08
Abstract: A compressor and regenerator for a fuel cell according to the present invention comprises a compression mechanism portion C having a compression chamber 14 for pressurizing an oxygen-containing gas to a high pressure to supply air to a fuel cell F, and a regenerative mechanism portion E having a regenerative chamber 24 so constituted as to be operated with the compression mechanism portion C by the same motor M and assisting the motor M using an exhaust gas G exhausted from the fuel cell F. The compression chamber 14 of the compression mechanism portion C and the regenerative chamber 24 of the regenerative mechanism portion E are adjacent to each other. A seal ring grove 80 is defined in a ring-like zone 54b of a center housing 20, and a seal ring 81 is fitted in the seal ring groove 80.
Patent CA-2319790-A1 (CA)
Title: Sound absorber mat with integrally molded retainer
Inventor: AYE RONNIE LEE
IPC: B60R13/01
Filed: 1999-02-05
Abstract: A dash mat (10) for a vehicle comprising a passenger compartment and an engine compartment separated by a firewall. The dash mat (10) comprises a decoupling layer (14) with multiple openings (44) and a sound barrier layer (12) with integrally molded fasteners (22) that are received within the decoupling layer openings (44) to secure together the decoupling and sound barrier layers. The fasteners (22) have at least arse flange portion that overlies the sound barrier to capture a portion of the decoupling layer between the flange and the sound barrier.
Patent CA-2321198-A1 (CA)
Inventor: HARRIS RALPH NEW III
IPC: C07D211/26
Filed: 1999-02-19
Abstract: Cette invention concerne des composés antagonistes des récepteurs muscariniques de la formule (I), ainsi que leurs sels acceptables sur le plan pharmaceutique, des isomères individuels ou un mélange racémique ou non racémique; des compositions pharmaceutiques les contenant et leur méthode d'utilisation en tant qu'agents thérapeutiques.
Patent CA-2321271-A1 (CA)
Inventor: BILLOUE JEAN-PAUL
IPC: F22B37/20
Filed: 2000-09-29
Abstract: The steam generator comprises an outer casing (2) with a transverse tubular plate (3) in its lower part. This plate is passed through by openings in each of which the end part of a straight branch of a tube (5) of a tube bundle (6) is engaged. Several parallel transverse plates (10) inside the bundle casing (7) have passage openings for the branches of the bundle tubes forming supply water circulation spaces and also means for the introduction of supply water into an annular space (8) between the outer casing and the bundle casing.
Patent CA-2321732-A1 (CA)
Title: Nontoxic vernix compositions and method of producing
Inventor: HOATH STEVEN B
IPC: A61K9/70
Filed: 1999-03-02
Abstract: A composition consisting essentially of vernix for a skin curative and skin protectant effect and a method of producing. A natural or synthetic vernix is dispersed in a film-forming amount in a biocompatible liquid such as dimethylsulfoxide, amniotic fluid and/or pulmonary surfactant to form a film.  The film may be applied to a growing layer of epithelial cells either directly or supported on a substrate such as a wound dressing, a diaper, or a feminine hygiene product.
Patent CA-2321995-A1 (CA)
Title: Method and apparatus for irradiating a biological fluid
Inventor: LEE ERIC KIN-LAM
IPC: C12M1/42
Filed: 1999-02-26
Abstract: An apparatus and method for illuminating a fluid having photosensitive material therein comprising a surface and a roller separated from the surface by a space. The space is adapted to receive a flexible container therein. The flexible container on the surface contacts the roller and the surface for translation through the space. A light source is adapted to transmit light to the space to illuminate the fluid and react with the photosensitive material as the flexible container translates through the space.