baber/WOPTO huggingface dataset:
Patent CA-2303707-A1 (CA)
Title: An improved spherical plain bearing and method of manufacturing thereof
Inventor: HARTL WERNER
IPC: F16C33/12
Filed: 2000-04-04
Abstract: The improved spherical plain bearing of the present invention is formed using a unique method of manufacture which includes surface hardening of the outer ring and the inner ring wherein the outer ring includes a fracture zone having a reduced cross-sectional area which allows the case hardening diffusion technique to penetrate much deeper into the ring fracture zone than in the other areas thereof. In this manner the reduced cross-section area of the outer ring provides a more brittle area with less of the more ductile interior steel which is more difficult to fracture. Such fracturing is necessary with such plain spherical bearings in order to allow placement of the inner ring within the outer ring. The spherical plain bearing produced by this method can include a single fracture or double fracture. Thus this bearing provides significant structural strength due to the inner core of softer more ductile steel while at the same time providing enhanced wear characteristics due to the case hardened outer layer on both the inner and outer races.
Patent CA-2305355-A1 (CA)
Title: Pre-cooler device
Inventor: DANIEL LUIS
IPC: F25B40/02
Filed: 1997-10-01
Abstract: An improvement for a refrigeration system that includes a refrigerant circuit and a compressor with condenser assembly (40). The improvement is a pre-cooling device (10) connected to the output of the condenser (40) and includes an inlet (12) and two outlets (14 and 16). The inlet (12) is connected to a serpentine (30) at one end and the other end is connected to the outlet (14). The other outlet (16) is connected to the device housing above the bottom concavity where the liquid refrigerant (R) is collected. The serpentine (36) comes in at least partial contact with the refrigerant (R) and in that manner pre-cooling the refrigerant (R) going through the serpentine (36).
Patent CA-2306207-A1 (CA)
Title: Geranyl diphosphate synthase from mint (mentha piperita)
Inventor: GERSHENZON JONATHAN
IPC: C12N15/29
Filed: 1998-10-15
Abstract: A cDNA encoding geranyl diphosphate synthase from peppermint has been isolated and sequenced, and the corresponding amino acid sequence has been determined. Accordingly, an isolated DNA sequence (SEQ ID No: 1) is provided which codes for the expression of geranyl diphosphate synthase (SEQ ID No: 2) from peppermint (Mentha piperita). In other aspects, replicable recombinant cloning vehicles are provided which code for geranyl diphosphate synthase or for a base sequence sufficiently complementary to at least a portion of the geranyl diphosphate synthase DNA or RNA to enable hybridization therewith (e.g., antisense geranyl diphosphate synthase RNA or fragments of complementary geranyl diphosphate synthase DNA which are useful as polymerase chain reaction primers or as probes for geranyl diphosphate synthase or related genes). In yet other aspects, modified host cells are provided that have been transformed, transfected, infected and/or injected with a recombinant cloning vehicle and/or DNA sequence encoding geranyl diphosphate synthase. Thus, systems and methods are provided for the recombinant expression of geranyl diphosphate synthase that may be used to facilitate the production, isolation and purification of significant quantities of recombinant geranyl diphosphate synthase for subsequent use, to obtain expression or enhanced expression of geranyl diphosphate synthase in plants in order to enhance the production of monoterpenoids, to produce geranyl diphosphate in cancerous cells as a precursor to monoterpenoids having anti-cancer properties or may be otherwise employed for the regulation or expression of geranyl diphosphate synthase or the production of geranyl diphosphate.
Patent CA-2306666-A1 (CA)
Title: Conversion circuit for an electromagnetic flow transmitter
Inventor: WEHRS DAVID L
IPC: G01D5/243
Filed: 1990-09-13
Abstract: A magnetic flowmeter generates an alternating potential (V19) representing flow. A controlled current (I12) excites the flowmeter with first and second amplitudes of current. A correction output (I26) represents the first and second amplitudes. A circuit (36) connected to the correction output (I26) and the alternating potential (V19) oscillates at a frequency representing the alternating potential corrected for variation of the first and second amplitudes.  Frequencies of the oscillations at first and second amplitudes are measured (38). An output is calculated (39) as a function of a subtraction of the first and second measured frequencies such that the effect of offset is reduced.
Patent CA-2308414-A1 (CA)
Title: Apparatus for retaining reaction vessels which can be temperature-controlled and shaken
Inventor: MUNCH SERAPHIN
IPC: B01L9/06
Filed: 1998-11-06
Abstract: The present invention relates to a device for holding reaction vessels (2) which can be thermally adjusted and agitated, wherein said device is preferably made in the shape of a block (1) comprising a plurality of reaction vessels (2). A flow channel extending through the block (1) is used for supplying a liquid or gaseous temperature-adjusting medium to the reaction vessels (2), while an integrated agitation means (5) is provided for moving said vessels (2). At their upper ends, the vessels (2) are maintained at their necks (20) by resilient coupling means in the shape of sleeves (3), while said vessels rest below their necks (20) in resilient means advantageously connected to the agitation means (5). The resilient means supporting the lower part of the vessels (2) include resting recesses extending from the block (1) or coupling means in the shape of sleeves connected to the block (1). The device of the present invention can be used for adjusting the temperature of the vessels (2) thus held while agitating said vessels. This device simultaneously provides access to the inside of the vessels (2) during a processing operation using a product sampling/addition organ for sampling specimens or adding dosed amounts of products. The sampling/addition organ can be guided using a robot. Since the temperature-adjusting medium circulates in closed loop, the vessels (2) can be thermally adjusted in a wide range of temperatures, said vessels (2) being arranged in parallel or in series.
Patent CA-2309018-A1 (CA)
Inventor: MCGREW R MICHAEL
IPC: G01M3/38
Filed: 2000-05-23
Abstract: A self propelled lateral inspection apparatus includes a body, a main camera fixed to the body, and a lateral camera movable with respect to the body into a lateral sewer pipe. A low frequency beacon is carried by the lateral camera or may be provided separately from the lateral camera. The beacon may be used to determine the position of the lateral camera in the lateral sewer pipe, or to map the lateral sewer pipe. A picture-in-picture processor is carried by the body, and permits an above-ground user to view video images from both the main and lateral cameras simultaneously on a single monitor screen.
Patent CA-2311778-A1 (CA)
Title: Field effect transistor
Inventor: PHILLIPS TIMOTHY JONATHAN
IPC: H01L29/205
Filed: 1998-06-10
Abstract: A field effect transistor (FET) is of the type which employs base biasing to depress the intrinsic contribution to conduction and reduce leakage current. It incorporates four successive layers (102 to 108): a p+ InSb base layer (102), a p+ InAlSb barrier layer (104), a .pi. intrinsic layer (106) and an insulating SiO2 layer (108); p+ source and drain regions (110, 112) are implanted in the intrinsic layer (106). The FET is an enhancement mode MISFET (100) in which biasing establishes the FET channel in the intrinsic layer (106). The insulating layer (108) has a substantially flat surface supporting a gate contact (116).  This avoids or reduces departures from channel straightness caused by intrusion of a gate groove, and enables a high value of current gain cut off frequency to be obtained. In FETs with layers that are not flat, departures from channel straightness should not be more than 50 nm in extent, preferably less than 5 nm.
Patent CA-2311836-A1 (CA)
Title: Tool holder case
Inventor: JORE MATTHEW B
IPC: B25H3/02
Filed: 2000-06-16
Abstract: A tool case including a box case with an open front and a cover hingedly attached to the box case. A frame having G plurality of locking fingers for cooperating with a groove located on the shank of a drill tool to be stored in the tool case is mounted within the box case. A rack having a plurality of chambers for receiving drill tools is pivotally mounted within the frame for pivotal movement from a drill tool storage position where the locking fingers extend into the grooves of the drill tools being stored to a position where the drill tools are exposed through the open front of the box case so that a user can select and remove an appropriate drill tool.
Patent CA-2312620-A1 (CA)
Inventor: GARRETT MICHAEL ERNEST
IPC: F25D3/10
Filed: 2000-06-28
Abstract: Refrigeration apparatus for use in the dispensing of draught beverages comprising a heat exchanger through which flows beverage to be dispensed, beverage flowing through the heat exchanger being in heat exchange relationship with a flow of a fluid cooled below ambient temperature following its controlled expansion, characterised in that the fluid comprises carbon dioxide and in that the expanded carbon dioxide is vented to atmosphere.
Patent CA-2314482-A1 (CA)
Inventor: KROLL MARK S
IPC: C09J177/00
Filed: 1998-11-18
Abstract: The present invention relates to a thermoplastic composition comprising at least one crystalline water sensitive polymer and at least one amorphous water sensitive polymer. The thermoplastic composition may optionally further comprise additional ingredients such as other polymers, tackifying resins, plasticizers, waxes, and mixtures thereof. The thermoplastic compositions are useful in a variety of applications wherein water or moisture sensitive thermoplastic materials are employed such as various packaging adhesive applications including case and carton sealing, remoistenable adhesives, repulpable/recyclable adhesives and multiwall bag applications. The present invention is also useful for moisture activatable reinforcement strings and opening tapes for corrugated containers, as well as for a variety of nonwoven applications such as body fluid impermeable barriers, core stabilization adhesives, and construction adhesives.
Patent CA-2315995-A1 (CA)
Inventor: HAMILL CHARLES M
IPC: F16L5/00
Filed: 2000-08-14
Abstract: A hub assembly for a faucet handle having an interconnectable top member and skirt member. The flop member having a bottom portion of reduced diameter with an external recess formed therein a short distance up from its bottom. The skirt member having an upper opening sized to receive the bottom portion of the top member. Resilient members being formed in the skirt member to extend downwardly and into the upper opening. The resilient members being engageable in the recess of the bottom portion releasably to connect the top member and the skirt.
Patent CA-2319647-A1 (CA)
Title: Oscillation circuits featuring coaxial resonators
Inventor: GRUNDLINGH JOHAN M
IPC: H03B1/00
Filed: 2000-09-14
Abstract: There is a manufacturing limit on how small ceramic coaxial resonators can be produced, which leads to a limit on the frequency of resonance for these resonators. One technique to quadruple the effective frequency of a ceramic coaxial resonator is to couple four resonators into a ring configuration, each of the resonators having an electrical length of 90°. Further, each of the resonators has an amplifier coupled in parallel, these amplifiers having phase shifts approximately equal to 90° and further being controlled by a tuning voltage V TUNE. In operation, four oscillation signals are generated at the same frequency but out-of-phase by a factor of 90°. When combined, the resulting signal is an oscillation signal at four times the frequency of the original oscillation signals. At the same time, one of the oscillation signals used in the combination can be sampled and be used for feedback purposes within a PLL-FS. Overall, this increase in output frequency along with low frequency sampling capability for feedback, can reduce the need for frequency multiplication and division within a PLL-FS.
Patent CA-2321381-A1 (CA)
Inventor: CORRELL GLENN D
IPC: B05D3/02
Filed: 2000-09-28
Abstract: A process of forming coatings on substrates by applying a layer of curable materials in dry powder form and then melting and curing the material is improved by compressing the layer. Less material is required to provide equivalent barrier protection and surface finish. The process is particularly applicable to applying dry powder coatings on temperature sensitive substrates, such as medium density fiberboard, in press apparatus, such as a membrane press, which have not commercially used dry powder coating materials previously.
Patent CA-2321847-A1 (CA)
Title: Method for the selective hydrolysis of acetals or ketals in the presence of phthalides
Inventor: HANNEBAUM HEINZ
IPC: C25B3/25
Filed: 1999-02-13
Abstract: The invention relates to a method for the selective hydrolysis of acetals in the presence of phthalides. According to said method a mixture (M) containing a) a phthalide of the formula (I) and b) an acetal or ketal of the formula (II) is reacted in the presence of between 1 and 10 mol water relative to the quantity of acetals or ketals of formula (II) at temperatures of between 10 and 200 ~C, whereby the acetal or ketal of formula (II) is hydrolysed to the corresponding aldehyde or ketone. The substituents R1-R8 have the meanings given in the description.
Patent CA-2322479-A1 (CA)
Title: Convertible container holding assembly
Inventor: SUKONTHAPANICH DUSIT
IPC: B60R7/04
Filed: 1999-03-02
Abstract: A convertible container holding assembly includes a housing (28) fixedly secured to a structure such as an armrest (24) or instrument panel (12). A base (30) is movable into and out of the housing between retracted and extended positions. The base includes a support (32) and a stabilizing edge (34). The support and stabilizing edge define a portion of a cupholding area. A stabilizing arm is pivotally secured to the base and positionable in an infinite number of positions such that it is capable of positively abutting the container (42) when the container is positively abutting the stabilizing edge, regardless of the diameter of the container. A brake (46) prevents the stabilizing arm from moving to its outermost position once it is forced into engagement with the container. The stabilizing arm may be reset by forcing it to its innermost position or by retracting the base into the housing and moving the base back to its extended position.
Patent CA-2322788-A1 (CA)
Title: Tagged ligand arrays for identifying ligand-target interactions
Inventor: BURMER GLENNA C
IPC: C12Q1/6811
Filed: 1999-02-26
Abstract: The present invention relates generally to high throughput screening methods.  More particularly, the present invention provides screening methods that can readily be used to identify simultaneously multiple proteins or compounds that interact with multiple ligands, using a tagged array of ligands.
Patent CA-2323417-A1 (CA)
Title: Broadband communication system using point and shoot approach
Inventor: REFAI WAIL M
IPC: H04B7/185
Filed: 1999-03-16
Abstract: A broadband communication network uses a point and shoot approach for data transmission. A transmitted broadband information signal is divided into a series of data packets, each including addressing information for a particular receiver. The information signal is parsed to extract addressing information, which is parsed to construct a narrow band index signal. This index signal is transmitted to a plurality of receiving stations. Each receiving station demodulates and decodes the narrow band index signal. The address information contained in the index field includes pointers to data packets in the information signal. Using the addressing information and pointers, each receiving station can locate and extract data packets from the broadband information signal which are intended for that particular receiver. The data packets from the information signal are buffer to permit demodulation and decoding the particular packet(s) belonging to that particular receiver at the same rate of the information signals.
Patent CA-2323466-A1 (CA)
Inventor: SIDDIQUI ZEHRA
IPC: A61K8/43
Filed: 1999-03-11
Abstract: A dual component chlorhexidine dentifrice composition in which the first component contains a bis-biguanide antibacterial agent and the second component contains an abrasive incompatible with the bis-biguanide, wherein maximum antibacterial effect on dental tissue with reduced staining is achieved when the components are physically separated prior to use and are mixed upon application to dental issue.
Patent CA-2324037-A1 (CA)
Title: Stair block for use in landscaping and method for manufacture thereof
Inventor: PRIBYL GARY F
IPC: B28B7/18
Filed: 2000-10-19
Abstract: A stair component block constructed of zero slump concrete is formed with a hollow center section surrounded by orthogonal upright walls. Two opposing walls are interconnected with a narrow vertical web which is provided with two or three vertical slots extending from its top edge toward generally the center of the web. Additional vertical slots are formed in the web at the intersections of the web and the opposing walls interconnected by the web. Each of these slots extends from the top edge of of the web part way to the bottom of the web. The web is so slotted such that the top part of the web may be easily removed by striking the sides of the top of the web after the block has been placed.
Patent CA-2328768-A1 (CA)
Inventor: HOMSI PIERRE
IPC: C25C3/20
Filed: 1999-04-07
Abstract: Le premier objet de l'invention est une cuve d'électrolyse (1) pour la production d'aluminium par le procédé d'électrolyse Hall-Héroult comprenant des moyens de refroidissement par soufflage d'air à jets localisés (27), et avantageusement à débit variable, qui permettent d'évacuer et de dissiper l'énergie thermique de la cuve. Le deuxième objet de l'invention est une usine de production d'aluminium par le procédé d'électrolyse Hall-Héroult caractérisé en ce que certaines cuves, ou l'ensemble de celles-ci, comprennent, individuellement ou en commun, des moyens de refroidissement selon l'invention.
Patent CA-2330241-A1 (CA)
Inventor: MEYERS GREGOR
IPC: A61K35/13
Filed: 1999-05-26
Abstract: Dans la présente invention, on divulgue des pestivirus atténués caractérisés par le fait que leur activité enzymatique résidant dans la glycoprotéine E RNS est inactivée, des méthodes pour leur préparation, leur utilisation et leur détection.
Patent CA-2330333-A1 (CA)
Inventor: FAVROT JEAN-MICHEL
IPC: C08G77/442
Filed: 2000-12-18
Abstract: Vulcanizable rubber composition useful for making pneumatic tires comprises a white reinforcing filler and a diene block copolymer (I) capable of interacting with the filler, where (I) has a trialkylsilyl-capped polysiloxane block (II) at one or both ends. Vulcanizable rubber composition useful for making pneumatic tires comprises a white reinforcing filler and a diene block copolymer (I) capable of interacting with the filler, where (I) has a trialkylsilyl-capped polysiloxane block of formula (II) at one or both ends: (-(SiR1R2O)-)x-SiR3R4R5 (II) R1-R5 = 1-20C alkyl; x = 1 or more. Independent claims are also included for the following: (1) a process for producing the composition, comprising: (a) reacting a living diene polymer with a polysiloxane having a haloorganosilane group at one end and a trialkylsily group at the other end; and (b) thermomechanically mixing the resulting copolymer with silica and additives; (2) a pneumatic tire having a tread comprising the composition.
Patent CA-2333945-A1 (CA)
Title: Systeme automatique de repartition d'appels
Inventor: SMITH ULYSSES GRANT JR
IPC: H04M3/523
Filed: 1998-06-01
Abstract: Cette invention concerne un système et un processus qui permettent de recevoir, d'attribuer et d'acheminer des données de communications téléphoniques entre des clients disposant d'une intégration téléphonique par ordinateur et des applications ponctuelles de commande par programme enregistré, ceci par l'intermédiaire d'un système de gestion par circuit virtuel de type serveur. Le système de gestion par circuit virtuel comprend un réseau d'objets Vecteurs I/O. Les objets s'instancient uniquement à des propriétés d'identification logiques, à des données téléphoniques et à un vecteur servant à acheminer les données soit vers les clients, soit vers les applications. L'identification logique permet aux données gérées par le système de gestion par circuit virtuel d'être persistantes tant dans le système source que dans le système de destination. Au cours de ce processus, les octets de données sont lus dans le réseau d'objets à partir du processus d'entrée/sortie du système d'exploitation du serveur. Les instances d'objets sont créées dans le réseau d'objets Vecteurs selon un procédé qui repose sur les propriétés héritées des données inscrites à partir du système I/O. L'instance fournit l'identification logique de l'origine des données de communication téléphoniques ainsi qu'une instance de processus vecteur que l'on utilise afin d'acheminer les données vers leur destination. L'instance de processus vecteur ne fait que lire et inscrire les données de sa propre instance telles que déterminées par leur attribut d'identification logique. Le processus vecteur enregistre la partie des données de son instance vers un processus d'objet vecteur différent grâce à l'identification de ce processus d'objet Vecteur. Toutes les données inscrites par un processus vecteur sont envoyées vers leur destination grâce à l'identification logique qui se trouve dans le système de gestion par circuit virtuel.
Patent CA-2334353-A1 (CA)
Inventor: FRANCISCO HARRY BERNARD
IPC: B29C59/02
Filed: 1999-06-24
Abstract: L'invention concerne un appareil destiné à coller une sous-couche thermoplastique (38) présentant une forme périphérique déterminée à une première surface d'une moquette (6) au moyen d'une énergie à radiofréquences, et comportant une électrode (24) de matrice et une électrode d'appui (18). A la fois l'électrode de matrice et l'électrode d'appui présentent une forme périphérique correspondant à la forme périphérique de la sous-couche. De plus, l'électrode de matrice et l'électrode d'appui peuvent présenter toutes deux une caractéristique en relief d'une dimension et d'un emplacement correspondants. Des concentrations d'intensité de champ électrique à proximité du bord périphérique de l'électrode de matrice et le long des bords de la partie en relief sur l'électrode de matrice sont réduites au minimum, si bien que le collage d'une sous-couche sur une moquette peut s'effectuer sans glissement thermique. La sous-couche est entièrement collée à la moquette sans brûlure localisée des poils de la moquette ou perforation de la sous-couche.
Patent CA-2334554-A1 (CA)
Title: Fibre a largeur de bande interdite photonique
Inventor: BARKOU STIG EIGIL
IPC: G02B6/02
Filed: 1999-03-30
Abstract: L'invention concerne une fibre optique présentant une structure de gaine optique périodique dont la structure à largeur de bande interdite photonique présente une qualité supérieure. Les zones à indice élevé de la structure périodique sont définies et séparées par la mise en oeuvre d'un certain nombre de procédés. Parmi ces procédés, l'un consiste à introduire des éléments supplémentaires à indice faible, un autre consiste à fournir des éléments allongés déformés par rapport à une section transversale circulaire. Fait aussi l'objet de cette invention une structure de gaine optique comprenant des éléments allongés d'un matériau présentant un indice de réfraction supérieur à celui du matériau adjacent. On peut améliorer considérablement la qualité des structures connues à ce jour en utilisant ce matériau supplémentaire.