baber/WOPTO huggingface dataset:
Patent CA-2186796-A1 (CA)
Inventor: ISHIKAWA KATSUMI
IPC: H01L29/74
Filed: 1996-09-30
Abstract: The present invention relates to a power semiconductor device such as a diode and thyristor.  In a semiconductor device such as a diode and thyristor having at least one pn junction between a pair of main surfaces, a first main electrode is formed on the surface of one of the main surfaces and a second main electrode is formed on the surface of the other one of the main surfaces.  A semiconductor lattice defect is formed such that its lattice defect density increases gradually in the direction from the first main electrode to the second main electrode.  Since the distribution of carrier density in the conduction state can be flattened according to the invention, the reverse recovery charge can be reduced substantially without causing the ON-state voltage to increase.
Patent CA-2188629-A1 (CA)
Title: Process for the production of a composite material panel with resin transfer moulding
Inventor: GUITTARD DOMINIQUE
IPC: B29C70/54
Filed: 1996-10-23
Abstract: For the production of a composite material sandwich panel having an open cell core (18) and at least one skin formed from resin impregnated fibres (20), the core (18) and unimpregnated fibres (20) are placed in a mould (10) and a tight membrane (22) and an adhesive film (24) are interposed in this order between the fibres and the core. After closing the mould (10), a single heat cycle makes it possible to polymerize the adhesive (20), in order to seal the cavities of the open cell core (18) with the membrane, followed by the injection of the resin under pressure into the fibres (20) and finally polymerize said resin prior to the removal of the panel from the mould.
Patent CA-2189169-A1 (CA)
Title: Wire Grid Attachment Member for Cushions, Seats, Foundations and the Like
Inventor: WAGNER ROBERT F
IPC: F16F1/12
Filed: 1992-02-05
Abstract: Pneumatic and load-supporting spring devices are used in bedding, cushions and the like. These have tubular telescoping members (16,18) that are biased apart by either an elastomer located in the overlapping region or a helical spring located within the pneumatic cylinder formed by the tubes. A conical or dish-shaped head element (70) with clips (76) provides a mount for the device, in which the clips securely engage a typical wire grid found in many bedding products. Additionally the dish-shaped element may use cooperating lobe(122) and trough (124) pairs to hold a grid wire (158) therebetween to fix the spring device (20) in place.
Patent CA-2190234-A1 (CA)
Title: Space division multiple access radio communication system and method for allocating channels therein
Inventor: SAUNDERS SIMON
IPC: H04B7/04
Filed: 1996-11-13
Abstract: In the preferred embodiment, a Space Division Multiple Access (SDMA) radio communication system (100) utilises a base station (101) having a plurality of antenna elements (103) used to transmit and receive to, multiple radio communication devices (107, 109) on a same frequency and time channel. A different set of beam forming weights is applied to communications for each radio communication device (107, 109) in such a way as to minimize the interference between the radio communication devices signals. A set of distance metrics is calculated utilizing the sets of weights for each pair of radio communication units sharing a channel. When any distant metric is less than a pre determined threshold value, one of the radio communication devices (107, 109) is reallocated to a new channel or a handover instruction is performed.
Patent CA-2192731-A1 (CA)
Title: Monohydrates of aminobenzenesulfonic acid derivatives and method for preparing thereof
Inventor: YAMAZAKI CHIKA
IPC: C07D295/096
Filed: 1996-12-12
Abstract: A monohydrate of an aminobenzenesulfonic acid derivative represented by the following formula (I), for example, 2-(1-piperazinyl)-5-methylbenzenesulfonic acid, which is substantially free from weight change due to moisture absorption, and can be weighed accurately in a manufacturing process of a pharmaceutical composition for the treatment of heart diseases comprising said monohydrate. (See formula I)
Patent CA-2196231-A1 (CA)
Inventor: TOWNLEY GLENN C
IPC: D21F7/08
Filed: 1997-01-29
Abstract: Cross machine stuffer yarns are used in the construction of a base fabric for a papermakers wet felt.  The stuffer yarns in combination with a multiple pass heat setting process stabilize the machine direction yarns  of  the base  fabric  to provide resistance to nip rejection. Preferably a fibrous batt is needled to the base fabric to finish the wet press felt.
Patent CA-2196988-A1 (CA)
Title: Seal for electrochemical cell
Inventor: DEPALMA CHRISTOPHER L
IPC: H01M50/193
Filed: 1995-08-17
Abstract: An electrochemical cell has a wheel shaped molded plastic seal member (10) of a unitary construction which includes a central cylindrical hub (12) from which depend in outward radial sequence, an annular pressure vent (18), a boss (26), a downward projecting skirt (30), an annular flexure means (38), for providing radial movement and an outer rim terminating at its periphery in a cylindrical wall (40). The pressure vent (18) includes a thin membrane ring (22) depending from the hub (12) which joins the hub (12) to an annular diaphragm (20). A hinged ring (24) joins the periphery of the diaphragm (20) to the boss (26). The seal (10) member is designed so that the membrane ring (22) fails primarily in shear at excessive cell pressure which makes the vent (18) more reliable and easier to fabricate.
Patent CA-2198358-A1 (CA)
Title: Ship based system for compressed natural gas transport
Inventor: STENNING DAVID G
IPC: B63B25/22
Filed: 1996-10-28
Abstract: A ship based system for compressed natural gas transport that utilizes a ship having a plurality of gas cylinders. The invention is characterized by the plurality of gas cylinders configured into a plurality of compressed gas storage cells. Each compressed gas storage cell consists of between 3 and 30 gas cylinders connected by a cell manifold to a single control valve.  A high pressure manifold is provided including means for connection to shore terminals. A low pressure manifold is provided including means for connection to shore terminals. A submanifold extends between each control valve to connect each storage cell to both the high pressure manifold and the low pressure manifold. Valves are provided for controlling the flow of gas through the high pressure manifold and the low pressure manifold.
Patent CA-2199073-A1 (CA)
Title: Guide rollers for cog rake bar screens
Inventor: WILCHER STEPHEN B
IPC: B01D29/03
Filed: 1997-03-04
Abstract: There is provided a guide roller assembly for use in a wastewater treatment facility comprising a pin and a guide roller, wherein the guide roller directly surrounds the pin and rotates about the pin. There is also provided a guide roller assembly for use in a cog rake bar screen comprising a pin and a guide roller, the guide roller surrounding the pin, wherein the guide roller comprises cast nylon comprising combined molybdenum and oil and the guide roller rotates about the pin.
Patent CA-2199303-A1 (CA)
Title: Sanitary container and production process thereof
Inventor: SUDO MORIHIRO
IPC: A61J1/00
Filed: 1997-03-06
Abstract: A sanitary container is molded from a plastic, for example, a cyclic olefin polymer or a hydrogenation product thereof.  The plastic has been added with at least one pigment selected from the group consisting of C.I. Pigment Yellow 147, C.I. Pigment Yellow 180 and C.I. Pigment Yellow 181.  The content of the at least one pigment may preferably range from 0.01 to 0.3 wt.% based the plastic.  The sanitary container can cut off ultraviolet rays with coloration of such an extent as still permitting easy visual recognition of its content.          Use of the sanitary container therefore makes it possible to stably store a material requiring sanitation such as a medicine such as a vaccine, antibiotic, vitamin, saccharide, amino acid or electrolyte, a nutrient solution, a transfusion solution, a cosmetic, a food such as a seasoning agent, or the like or a material similar to the above-mentioned material over a long period of time while maintaining cleanliness.
Patent CA-2200849-A1 (CA)
Title: Flavor encapsulation
Inventor: FULGER CHARLES V
IPC: A23L27/10
Filed: 1995-09-28
Abstract: A process for incorporating a volatile component into a matrix comprising: (a) forming a melt comprising said volatile component (12) and said matrix (10), (b) solidifying said melt under a pressure sufficient to prevent substantial volatilization of said volatile component (8). In a preferred embodiment, the volatile component is a volatile aroma compound such as those contained in coffee grinder gas or emitted when baking dough or roasting a food.
Patent CA-2201184-A1 (CA)
Title: Multi-port ethernet frame switch
Inventor: ALEXANDER THOMAS
IPC: H04L12/931
Filed: 1997-03-27
Abstract: An Ethernet switch which includes a plurality of medium access control (MAC) interface logic circuits each coupled to an associated output port operative to perform serial-to-parallel conversion for frames being received from an associated output port and parallel-to-serial conversion for frames being transferred to an associated output port and other interfacing functions. The switch has an internal bus, a buffer memory coupled to each of the MAC interface logic circuits at one end and to the internal bus at another end, a switch central processor coupled to the internal bus and a multi-channel Direct Memory Access (DMA) Controller coupled to the internal bus and to the switch central processor, operative to transfer incoming frames to an external memory and to transfer frames stored temporarily in external memory to their destination in accordance with instructions from the switch central processor. An external memory controller is coupled to the DMA Controller and to an external memory port. An expansion bus interface logic circuit is coupled to said DMA Controller and to an expansion bus port. The switch central processor performs frame address handling and controls transfer of incoming frames to their destination.
Patent CA-2202106-A1 (CA)
Title: A non-timeline, non-linear digital multimedia composition method and system
Inventor: MARUVADA PRASAD
IPC: H04N21/44
Filed: 1997-04-08
Abstract: A non-temporal, non-linear multimedia composition method and software system used in producing digital composition sequences. The method treats all digital signals and information, including video, audio, image, documents source materials, as common data types for composition and creation purposes, The invention employs a spatial, non-temporal, non-linear story line method for displaying and manipulating digital source material objects for composition purposes. The method utilizes content specific, dynamic pictorial objects to denote digital source materials stored incomputer readable format to facilitate ease of operation in performing non-linear, non-timeline multimedia composition operations. Methods are provided for dynamicpreviewing and manipulation of images, video, audio, three dimensional objects and animation sequences denoted by dynamic pictorial objects representing digital source materials stored in computer readable format. The method of the present invention employs a function-specific software console metaphor in which all composition elements are displayed within a single, integrated console environment, including a dynamic story line display facility, video editor, special effects editor, transitions editor, video animation editor, audio studio, plug-in editor, digital capture and output editor. The present invention includes a method for visually denoting the active status of one or more composition editors as applied to a specific composition segment or sequence. Methods for facilitating dynamic image capture from digital video sources are employed in the present invention. The system and method utilizes animated multistage three dimensional pictorial icons with associated properties as controls for the purpose of initiating specific computing commands and composition process related tasks.
Patent CA-2207672-A1 (CA)
Title: Process for the carbonylation of ethylene and catalyst system for use therein
Inventor: WHISTON KEITH
IPC: C07C67/38
Filed: 1995-12-22
Abstract: A catalyst system capable of catalysing the carbonylation of ethylene and a process which uses such a system wherein the catalyst system is obtainable by combining a metal of Group VIII, e.g. palladium, or a compound thereof and a bidentate phosphine, e.g. bis (di-t-butyl phosphino)-o-xylene.
Patent CA-2207749-A1 (CA)
Title: Fungicides for the control of take-all disease of plants
Inventor: WONG SAI CHI
IPC: A01N43/10
Filed: 1995-11-14
Abstract: This invention relates to 4,5-dimethyl-N-2-propenyl-2-(trimethyl silyl)-3-thiophenecarboxamide, a method for the control of Take-All disease (Gaeumannomyces species) in plants by the use of this compound, and to fungicidal compostions for carrying out the method.
Patent CA-2208476-A1 (CA)
Title: Synergistic combinations of 2-(thiocyanomethylthio)benzothiazole and thiophanate compounds useful as fungicides
Inventor: CHAMBERS HAYLEY
IPC: A01N43/78
Filed: 1995-12-19
Abstract: A method for preventing the deterioration of various types of industrial raw materials and products by controlling the growth of fungus, wherein the material to be protected from deterioration is contacted with TCMTB and a thiophanante compound present in a combined amount synergistically effective to control the growth of at least one fungus.
Patent CA-2213046-A1 (CA)
Inventor: NACAR ERNESTO M
IPC: G02C7/06
Filed: 1997-10-01
Abstract: The  present  invention  relates  to  a  pair  of  bifocal eyeglasses, that reading lens can be made to elevate (during wear) from a normal to a higher position, to allow a nearsighted person to use the reading lens to see overhead or elevated objects, clearly and comfortably, without applying strain to his neck. This is accomplished by manually inserting a preformed saddle piece between the eyeglass frame nose pads and the human nose bridge along the eye level. The height to achieve closer vision lens is controlled by the amount of inward or outward bent or angle of the saddle piece wings from the middle of the longitudinal body.  The  close vision lens  maximum height  is achieved when the saddle wings have a straight appearance while the lowest is when the saddle piece wings are bent close along the side profile of the wearer's nose.  When lens elevating is not needed, the saddle is removed allowing the glass frame nose pads to return to its nose natural nose position. The saddle piece is simple to use, cheap to buy, works on all eyeglass frame designs and is applicable to various human nose bridge profiles.
Patent CA-2214485-A1 (CA)
Inventor: LAMPARTER RONALD C
IPC: B60R21/34
Filed: 1997-09-03
Abstract: A school bus is equipped with a crossing arm mechanism that is mounted on the front bumper at the passenger side. The mechanism includes a crossing arm assembly that is pivoted between a retracted (stored) position  adjacent the front bumper  and an extended (operative) position  where the crossing arm assembly extends outwardly of the bus bumper in a perpendicular fashion to control pedestrian traffic.  The crossing arm assembly includes a plastic bracket that is pivotally attached to an actuating mechanism and a cantilever beam that is attached to the bracket at one end.  The bracket has two vertically spaced pivot arms and a beam mounting portion  that  supports  the  cantilever  beam.    The cantilever beam is a plastic extrusion that comprises upper and lower tubular sections that are interconnected by a web portion.  The extrusion is modified at one end for attachment to the bracket.
Patent CA-2214645-A1 (CA)
Inventor: LAMPARTER RONALD C
IPC: B60R21/34
Filed: 1997-09-04
Abstract: A school bus is equipped with a stop sign mechanism that includes a sealed electrical actuator assembly and bezel that are mounted on the street side of the school bus and an illuminated sign assembly having integral arms that are hinged on the actuator assembly for pivotal movement.  Illuminated sign assemblies of two general types are disclosed.  In one, light emitting diodes (LEDs) are disposed in hollow letter shaped embossments of a translucent lens to illuminate the word stop.  In the other lamp assemblies are disposed above and below the word stop.
Patent CA-2216541-A1 (CA)
Title: Large dump truck suspension
Inventor: PREM HANS
IPC: B60G3/14
Filed: 1996-03-29
Abstract: A suspension system for a large dump truck and the dump truck having a main frame with laterally spaced members each associated with a rear wheel mounting hub with a wheel on each of its sides. Each hub is attached to respective frame member by a leading arm pivotably attached at and a suspension strut pivotably attached to the hub at and to the frame. The connections of the hub allow for its limited pivotal movements about transverse and longitudinal axes relative to the frame. A Dump body is pivotally attached to the frame or to the rear and up from location.
Patent CA-2217462-A1 (CA)
Inventor: RAMTOOLA ZEBUNNISSA
IPC: A61K38/13
Filed: 1996-04-02
Abstract: Formulation pharmaceutique à libération lente comportant de la cyclosporine piégée dans un polymère biodégradable de manière à former des microsphères ou nanosphères telles que la cyclosporine est sensiblement amorphe et que le polymère biodégradable comporte plus de 12,5 % en poids de poly(lactide). Le polymère biodégradable peut être le poly-D,L-lactide ou un mélange de poly-D,L-lactide et de poly-D,L-lactide-co-glycolide. Par ailleurs, on peut former un enrobage gastro-résistant sur les microsphères ou nanosphères, ou sur la forme posologique orale renfermant les microsphères ou nanosphères, afin de protéger la formulation lors de son passage dans l'estomac. Une formulation particulièrement appropriée comporte 50 % en poids d'un mélange, chargé de cyclosporine, de microsphères et/ou de nanosphères de poly-D,L-lactide-co-glycolide et de poly-D,L-lactide, selon un rapport de 80:20. Cette formulation assure à la fois une libération quasi totale de cyclosporine et une libération relativement lente de celle-ci dans un délai de 8 heures, et permet de libérer la cyclosporine uniquement dans l'intestin grêle lorsqu'elle est administrée par voie orale.
Patent CA-2219343-A1 (CA)
Inventor: PERSSON ANDERS
IPC: H02M1/08
Filed: 1997-11-13
Abstract: A power supply apparatus for a drive unit in a high voltage converter circuit, the circuit has a plurality of power semiconductors connected in series. Each power semiconductor is connected to a drive unit for turning the power semiconductor on and off. The power supply apparatus consists of a capacitor and a regulator connected in parallel with the power semiconductor. The capacitor is connected to the drive unit and stores sufficient energy for power supply of the drive unit. The regulator regulates the voltage across the capacitor.
Patent CA-2219785-A1 (CA)
Inventor: FALK GOERAN
IPC: B60R13/08
Filed: 1996-04-24
Abstract: La présente invention concerne un agencement (1) permettant de produire un effet d'atténuation sonore dans des structures contenant des haut-parleurs stéréophoniques d'automobiles. L'invention consiste à appliquer, par pulvérisation, enduction au pinceau, au rouleau ou au couteau entre deux éléments en forme de feuille (3, 4) un polymère viscoélastique (2) présentant des propriétés adhésives, de façon à former une feuille composite. L'effet atténuateur du polymère viscoélastique de la structure sandwich résultante fait que, lorsque la couche atténuatrice est soumise pendant une oscillation à une déformation en cisaillement, cette couche arrive à réduire les phénomènes vibratoires, de résonance et de réverbération indésirables dans la structure que constitue la feuille. L'invention concerne également un procédé de réalisation de cet agencement.
Patent CA-2220812-A1 (CA)
Inventor: OHTSUKA SHUICHI
IPC: H04L29/08
Filed: 1997-11-13
Abstract: Upon providing a network photograph service, a prompt service can be provided to a customer without losing the advantage thereof such as ease of understanding where to access and collective data management. A service center receiving an order of a printing service and a minilab or a special laboratory spread across a plurality of places are able to communicate through a network. The center server in the service center selects and assigns the laboratory for printing the ordered picture in response to an order information transferred from a customer via the network so that the printing processing can be carried out by the laboratory specified by the customer instead of the center server.
Patent CA-2227484-A1 (CA)
Title: Environmental control for biological nutrient removal in water/wastewater treatment
Inventor: MARTIS MARY C
IPC: C02F3/00
Filed: 1998-01-20
Abstract: Control of a water/wastewater treatment system is effected by  sensing  the  oxidation  reduction  potential  (ORP)  at various parts of the system and using neuro-adaptive process control techniques to make adjustments when necessary based on the ORP values.   Internal nitrate recycling,  sludge return, organic substrate addition and/or aeration can be adjusted to achieve the desired environmental conditions. In the event that phosphorus removal  is necessary,  the system can be used to assure proper detention time needed for biological phosphorus uptake.
Patent CA-2228645-A1 (CA)
Inventor: TAKAGI TOSHIO
IPC: B05B1/16
Filed: 1996-08-01
Abstract: La présente invention concerne une buse de tête de projection capable de former différentes configurations de projection. Un cylindre intérieur entoure latéralement le périmètre extérieur du corps d'une buse, un interstice, dans le cylindre intérieur, sert de passage pour l'écoulement intérieur, et il y a un passage extérieur à l'extérieur du cylindre intérieur. De l'eau provenant de trous traversants pratiqués dans une paroi périphérique du corps de buse est amenée au passage intérieur ou extérieur grâce au fonctionnement alternatif du cylindre intérieur. En outre, une extrémité agrandie formée sur sa paroi périphérique, avec des trous de pénétration de l'eau, est voisine d'une extrémité fermée du corps de buse, et les trous de pénétration de l'eau communiquent avec le passage intérieur de telle façon que le fonctionnement du cylindre intérieur peut donner différentes configurations de projection, comme un jet rectiligne, un brouillard, un cône, celle d'un arrosoir ou d'une pomme de douche.
Patent CA-2229055-A1 (CA)
Title: Coraux hermatypiques effrites
Inventor: YOSHIZUMI SATOSHI
IPC: A23L33/16
Filed: 1997-10-15
Abstract: Des coraux hermatypiques effrités sont immergés dans une solution alcaline aqueuse sous une pression réduite afin d'être soumis à un lavage alcalin qui fait pénétrer la solution alcaline aqueuse dans la structure fine à l'intérieur du tissu poreux des coraux hermatypiques effrités. Le tissu poreux est ensuite lavé avec de l'eau jusqu'à neutralisation de l'eau de lavage de l'intérieur du tissu poreux. Ce lavage permet d'enlever diverses algues marines, divers microorganismes, y compris les bactéries Vibrio habitant l'océan et d'autres substances organiques diverses retenus dans la structure fine interne des coraux hermatypiques effrités. Ainsi, il est possible d'obtenir des coraux hermatypiques effrités qui ne présentent aucun danger. Cette matière convient comme aliments, milieux filtrants pour purificateurs d'eau et ainsi de suite.