baber/WOPTO huggingface dataset:
Patent CA-2230529-A1 (CA)
Title: Digitally programmable multifunction radio system architecture
Inventor: PRILL ROBERT S
IPC: H04B1/40
Filed: 1996-08-30
Abstract: A system that partitions or divides the functions of a radio into channels and d ivides the functions of each channel into two major functions: 1) antenna interface and power amplification; and 2) hardwired mixing , modulation/demodulation and signal processing and further partitions the mixing through signal processing functions into the funct ions of a) programmable analog mixing and b) programmable digital modulation/demodulation and signal processing. Control and user interfac e functions, if needed for a particular application can also be functionally partitioned. A typical received signal pathway will encount er an antenna module, an antenna interface and power amplification module, a receiver module partitioned into an analog submodule tha t performs mixing and down conversion to produce a common intermediate frequency signal and a digital submodule that further down c onverts the intermediate frequency signal, demodulates the signal and performs the other signal processing necessary to provide a usefu l information signal. A typical transmitter pathway includes a transmitter module partitioned into a digital submodule that performs signal p rocessing and modulation and an analog submodule that performs upconversion and mixing, followed by a power amplification and interfac e module and an antenna module. Control and user interface modules can also be provided along with modules that perform additiona l processing and information security functions.
Patent CA-2230663-A1 (CA)
Inventor: NEU THOMAS
IPC: C08F246/00
Filed: 1998-02-27
Abstract: A process for preparing molding materials having anticoagulant properties is described. Hydrophobic monomers are subjected to free-radical copolymerization with hydrophilic monomers having biospecifically active functions to produce the molding material. The molding material may then be shaped into articles which also have anticoagulant properties. These articles are extremely useful in, for example, medical applications in contact with a patient's biological fluid.
Patent CA-2233814-A1 (CA)
Title: Method and apparatus for composing layered synthetic graphics filters
Inventor: BIER ERIC A
IPC: G06T11/80
Filed: 1998-04-01
Abstract: A computerized two-dimensional illustration system composes an image of a scene with layered synthetic graphics filters or lenses. The scene is defined by an ordered list of shapes. Some of the shapes in the ordered list of shapes are lenses. Each lens is a shape that has a fill color which is an operator rather than a constant. The operator of a selected lens performs a filtering function on the shapes ordered below it in the list of shapes. To compose a selected lens inthe scene, the system first computes an under-list of shapes for the selected lens. The under-list of shapes is used to identify those shapes in the ordered list of shapes to which the filtering function of the selected lens may apply. Depending on the filtering function of a lens, the lens composes in either a back-to-front order or a front-to-back order. A lens composes in a back-to-front order by freezing lenses in the under-list before applying the filtering function of the lens to shapes in the under-list. In contrast, a lens composes in a front-to-back order by applying the filtering function of the lens to the under-list of shapesbefore freezing lenses in the under-list. When a lens is frozen, it is replaced with a cluster of shapes that are formed independently of other shapes in the list ofshapes.
Patent CA-2234780-A1 (CA)
Title: Tapered waveguide for optical dispersion compensation
Inventor: DUGUAY MICHEL
IPC: H04B10/18
Filed: 1998-04-15
Abstract: An optical device for creating chromatic dispersion which comprises an input receiving an optic communications signal, a first waveguide, a second waveguide and an output for outputting the optic communications signal with modified chromatic dispersion characteristics. The first waveguide has a first index of refraction and a lateral coupling surface and is able to guide a mode of light. It has a substantially uniform thickness. The second waveguide has a second index of refraction significantly different from the first index of refraction and a corresponding lateral coupling surface coupled to the lateral surface of the first waveguide. It also has a variable thickness selected to allow a predetermined wavelength to couple massively from the first to the second waveguide at a predetermined distance along the coupling surface in the direction of propagation of the mode of light, the thickness varying gradually in the direction of propagation of light so as to allow neighboring wavelength components of an optical signal to undergo chromatic dispersion by coupling from the first waveguide to the second waveguide at different positions.
Patent CA-2237410-A1 (CA)
Title: Diverter switch and link system for load tap changer
Inventor: PERKINS STEPHEN A
IPC: H01H9/40
Filed: 1996-10-28
Abstract: A load tap changer comprising in part a diverter switch is disclosed. The diverter switch includes a movable main contact (38), first and second fixed main contacts (40a, 40b), a pantograph system (30) for translating a rotational motion of a shaft (22) to a substantially linear motion of the movable main contact. The load tap changer further comprises a link system (I0) comprising a gear adapted to be rotated by a motor, a spring battery for storing energy of the motor and a link assembly for coupling the gear to the spring battery. The shaft is coupled to the link assembly to enable the spring battery to rotate the shaft and effect movement of the movable main contact. A predetermined amount of rotation of the shaft effects a movement of the main contact from a contacting position with the first fixed main contact to a contacting position with the second fixed main contact.
Patent CA-2238560-A1 (CA)
Title: Process for the alkylation of heavy mono-alkylates of single-ring aromatic hydrocarbons
Inventor: CAMPBELL CURT B
IPC: B01J29/08
Filed: 1998-05-25
Abstract: A heavy mono-alkylated benzene, having a heavy-alkylate content of at least 20 weight percent, is produced by reacting a heavy mono-alkylated benzene with an olefin, having from 6 to 14 carbon atoms, at a pressure of up to about 10 bars and a temperature of about from 100° to 225° C in the presence of an acidic catalyst. The acidic catalyst can be a molecular sieve or clay. The molecular sieve can be a natural or synthetic zeolite.
Patent CA-2239394-A1 (CA)
Title: Lay in cable channel for modular office systems
Inventor: REIN RUSSELL J
IPC: E04B2/74
Filed: 1998-06-02
Abstract: A modular work station has spaced uprights that  support  a work  surface,  and a  divider panel extending between the uprights.  A communication cable channel  extends  between  the  uprights  and  has  a passageway accessible for laying in a communication or other type of cable.  At least one of the uprights has a recess that opens to an edge of the upright and aligns with the passageway in the communication cable channel such that a communication cable can extend through the recess to an adjacent modular work station.   A cover member covers the opening in the upright channel to ensure that the cable is enclosed and yet can be laid in without threading it through openings in such uprights.
Patent CA-2241172-A1 (CA)
Title: Episomal vector and uses thereof
Inventor: USTAV MART
IPC: C12N15/86
Filed: 1996-12-27
Abstract: The invention relates to a recombinant vector for stable persistence of exogenous DNA in a eukaryotic host cell, and the uses of the recombinant vector for long-term stable production of a gene product in the host cell, the vector including the minimal origin of replication of papillomavirus and the minichromosomal maintenance element of papillomavirus.
Patent CA-2241999-A1 (CA)
Inventor: REGAN BERNARD JOHN
IPC: H05B37/02
Filed: 1997-01-02
Abstract: A lighting system comprising a plurality of lighting units each having an element capable of illumination and an associated switch unit which can respond to a radio frequency signal to connect the element to or disconnect the element from a source of electrical energy, and one or more remote control switch units which are operable to transmit control signals to control operation of the lighting units, the or each remote control switch unit being arranged to transmit radio frequency signals which include as identification portion for identifying those lighting units which are to respond to the transmitted signals.
Patent CA-2242657-A1 (CA)
Inventor: EILON GABRIEL F
IPC: C07D407/12
Filed: 1997-01-24
Abstract: La présente invention concerne l'utilisation d'un composé de pipérazine représenté par la formule générale (I) ou de l'un de ses sels pharmaceutiquement acceptables dans la préparation d'un médicament permettant d'induire la mort cellulaire des cellules néoplasiques en tant qu'agent chimiothérapeutique primaire, ou de potentialiser la chimiothérapie de cellules néoplasiques résistant à plusieurs médicaments. Dans la formule (I), R?1¿ est hydroxyle, C1-4 alcoxyle, C1-4 alkylcarbonyloxyméthoxyle, un groupe phényle C1-2 alkylamino, 2,5-pyrrolidinedione-1-alcoxyle (C1-4) ou (II), dans laquelle X?1¿ est une liaison chimique ou C1-2 alkylène, X?2¿ est hydrogène ou carbonyle formant un cycle à 5 segments avec X?1¿ lorsque X?1¿ est méthylène, X?3¿ est hydrogène ou C1-2 alkyle, X?4¿ est hydrogène ou C1-2 alkyle, ou X?3¿ et X?4¿ forment ensemble un cycle à 5 segments dans lequel l'un au moins des symboles X?2¿, X?3¿ et X?4¿ est hydrogène. En outre, R?2¿ est C3-4 alkyle, R?3¿ est C1-4 alkyle ou un radical représenté par les formules (III), (IV) ou (V), "n" étant un entier compris de 0 à 3.
Patent CA-2246052-A1 (CA)
Title: Novel hydroxy and polyhydroxy derivatives of coumarin, preparation thereof and antiviral action thereof
Inventor: TRKOVNIK MLADEN
IPC: C07D311/48
Filed: 1998-10-01
Abstract: The present invention relates to novel hydroxy and polyhydroxy derivatives of coumarin fused with dialdehydes and aldehyde acids of the general formulae I, II, III and IV:     (see fig. I)  (see fig. II)    (see fig. III)  (see fig. IV) wherein: R1 = R2 = 4-hydroxycoumarin; R1 = R2 = 4,7-dihydroxycoumarin; R1 = R2 = 4,5,7-trihydroxycoumarin; R1 = 4-hydroxycoumarin, R2 = -CH(OH)CH3.   The invention also provides processes for the preparation of hydroxy and polyhydroxy derivative of coumarin fused with dialdehydes and aldehyde acids. The novel hydroxy and polyhydroxy derivatives of coumarin according to the present invention exhibit antiviral action against HIV-1 virus.
Patent CA-2247757-A1 (CA)
Inventor: MUSIL EDWARD C
IPC: F16G3/02
Filed: 1998-09-18
Abstract: A hinged fastener is provided for splicing transverse ends of conveyor belts together with the belt fastener having teeth that are bent from one of the fastener plates for piercing and sinking into the belt to increase the holding power of the fastener. In the preferred form, the fastener is attached to the belt end with two rivets with the teeth being adjacent the rivets to provide a small, low cost, high performance fastener. The teeth are formed by bending them down from the outer edge of the plate and about a bend line parallel to the inner edge of the plate so that the teeth face the belt end to keep the teeth from being pulled through the belt material. The location of the teeth adjacent the rivets maximizes the depth of penetration of the teeth into the belt for improved fastener holding power and minimizes the likelihood that the teeth will be bent upward and lose holding power when the belt is highly tensioned.
Patent CA-2248742-A1 (CA)
Title: Tea bag for iced tea
Inventor: CILLIERS JOHANN
IPC: A23F3/16
Filed: 1998-10-20
Abstract: A tea bag for ice tea beverages. The tea bag contains a tea mixture made up of about 30% to about 95% by weight of tea leaves, and about 5% to about 70% by weight of dried soluble tea solids. The tea bag may be immersed in cold water to provide a tea beverage of acceptable color and flavor in less than about 10 minutes.
Patent CA-2248817-A1 (CA)
Title: Process for preparing a shell-type catalyst
Inventor: MUELLER HERBERT
IPC: B01J35/10
Filed: 1998-09-29
Abstract: A process for preparing a shell-type catalyst in which a nonporous inorganic support material which has a BET surface area of less than 80 m2/g is provided with a catalytically active outer shell.  In an initial step, a suspension of at least one noble metal compound which is soluble in water and one coating compound, which is substantially insoluble in water, are dried onto the support material.  The resulting support material coated with an outer shell is activated in a reducing gas stream.          Using the process it is possible to coat a nonporous support material in a single step simultaneously with active and coating material to produce higher space velocities without a decrease in the rate of conversion during the selective hydrogenation of acetylene in gas streams by using the resulting shell-type catalyst.
Patent CA-2250136-A1 (CA)
Title: Thermoplastic resin-coated aluminum alloy plate and process and apparatus for producing the same
Inventor: SHIRAI SHINJI
IPC: C25D11/06
Filed: 1997-03-24
Abstract: A thermoplastic resin-coated aluminum alloy plate having so high a processing adhesion that the laminated thermoplastic resin layer is not separated therefrom even when the plate is subjected to a severe forming process in which the plate is deep-drawn, stretched and then ironed. A process and an apparatus for producing the same are also disclosed. An aluminum alloy plate is treated with an alkali solution and an acid solution in order so as to put the surface of the plate in a special condition. The resultant plate is subjected to anodic electrolysis using a direct current in an acid solution containing one or more of inorganic acid, such as sulfuric acid and an organic acid, such as carboxylic acid or hydroxy carboxylic acid. Alternatively, the resultant plate is subjected to a treatment using hot water of above 60°C, boiling water, or water vapor so as to form a uniform hydration oxide film of 2-10 mm in thickness. The alloy plate is coated with a thermoplastic resin. This enables the thermoplastic resin-coated aluminum alloy plate to have so high a processing adhesion that permits the plate to withstand a severe forming process.
Patent CA-2251764-A1 (CA)
Title: Hand-guided appliance with an internal combustion engine with direct electronic injection
Inventor: SCHULZ PETER
IPC: F02B63/02
Filed: 1997-04-14
Abstract: In order to improve a hand-guided appliance with a two-stroke internal combustion engine with direct electronic fuel injection in such a way that the fuel injection is optimised, it is proposed to fit a partition (19) bordering the cylinder (15) which separates the adjacent intake chamber from the cooling air guide and to fit the fuel injection valve (17) above the intake port of the cylinder (15) passing through the partition (19).
Patent CA-2251874-A1 (CA)
Title: Biosensors
Inventor: MORE BRIAN ROBERT
IPC: G01N33/483
Filed: 1997-04-17
Abstract: Apparatus and methods are provided for determining capacitance and/or conductance variation of a biosensor on contact with a component with which the biological agent of the sensor interacts. A variety of AC frequencies may be applied to make the measurements. The biological agent is ideally isolated from the sensor/electrolyte interface double layer.
Patent CA-2252285-A1 (CA)
Inventor: GROENEWOLD KEITH
IPC: A47F1/06
Filed: 1998-10-30
Abstract: A flatware dispensing unit for dispensing flatware is disclosed including a primary housing having at least one compartment for receiving flatware therein with the compartment having an elongated slot for exposing at least a portion of the flatware. In a first embodiment, a cartridge having a complimentary elongated slot substantially aligned with the elongated slot in the compartment when the cartridge is positioned within the compartment. The flatware cartridge includes a widened portion which when inserted into the compartment aligns with a widened portion of the elongated slot of the compartment. In doing so, the cartridge may be easily dropped into the compartment such that the flatware need not be individually handled by the person stocking the dispenser unit and limits the number of utensils which can be removed from the dispenser at one time. In accordance with a preferred embodiment of the present invention, the flatware dispensing unit for dispensing flatware includes at least one flatware cartridge containing a plurality of flatware pieces temporarily receivable in the compartment. The cartridge itself includes a plurality of flatware oriented in the same manner forming a bulk oriented stack of flatware and a flexible enclosure enclosing the bulk oriented stack of flatware and maintaining an orientation of the bulk oriented stack of flatware with the bulk oriented stack of flatware in the flexible enclosure being positioned in the flatware dispenser, with the flexibleenclosure being removable from the bulk oriented stack of flatware. A tear-away portion is preferably included to aid in removal of the flexible enclosure.
Patent CA-2253058-A1 (CA)
Title: Therapeutic composition that produce and immune response
Inventor: KREUTZ FERNANDO
IPC: A61K47/48
Filed: 1998-11-04
Abstract: The invention is therapeutic methods and compositions that alter the immunogenicity of the host.
Patent CA-2254037-A1 (CA)
Inventor: MULLINS RAYMOND
IPC: B62K13/04
Filed: 1998-11-13
Abstract: An auxiliary wheel conversion assembly for a motorcycle comprises a quick connect and disconnect structure, including a generally U-shaped frame having side frame members on opposite sides of a receiving pocket to receive the rear drive wheel of the motorcycle when connected thereto, a cross-bar across the rear between the two side frame members, an auxiliary wheel mounted along and to the outside of each side frame member, such wheels being of the same size as the rear drive wheel and substantially in axial alignment therewith when the conversion assembly is connected to the motorcycle.
Patent CA-2256952-A1 (CA)
Title: Method for processing metalworking fluid
Inventor: FORTIER DAVID R
IPC: B23Q11/10
Filed: 1998-12-23
Abstract: A method for processing metalworking fluid disposed in a sump 12 is disclosed and includes the step of collecting metalworking fluid having a greater concentration of tramp oil than the concentration in the sump and flowing a portion of this oil, without passing the oil through a separator, to increase circulation in the sump. Various steps of the method are developed which increase the level of tramp oil removed from the sump and provide for the introduction of oxygen into the working medium of fluid. In one particular embodiment of the method, the step of flowing the return fluid under pressure to the sump, includes forming jets of fluid which extend vertically into the air to aerate the metalworking fluid and block the proliferation of anaerobic bacteria..
Patent CA-2257793-A1 (CA)
Title: Stimulateur cardiaque a avertisseur pourvu d'une electrode de stimulation de forme allongee
Inventor: COOKE DANIEL J
IPC: A61N1/37
Filed: 1997-07-18
Abstract: La présente invention concerne un système de stimulation cardiaque implantable (10) équipé d'un système d'avertissement du patient (78) et d'une électrode allongée (26) montée à proximité du boîtier du système pour fournir une stimulation d'avertissement fiable. Cette électrode (26) présente une longueur importante (34) pour une largeur réduite (36). La longueur est de préférence deux fois la largeur, et plus préférablement au moins quatre fois la largeur. Cette longueur importante augmente la probabilité d'un bon contact avec le tissu environnant. Par ailleurs, la faible largeur et son profil arrondi forment un "bord", ce qui augmente la probabilité que l'intensité de courant obtenue soit assez élevée pour provoquer une stimulation. L'électrode peut également être incurvée sur sa longueur, ce qui a tendance à favoriser la création d'un "point" ou d'une petite zone de contact entre l'électrode et le tissu du patient. L'électrode, qui peut se monter directement sur le boîtier ou le canal de sortie du stimulateur cardiaque, peut également être intégrée à une électrode implantée séparément, auquel cas, on peut employer une configuration enveloppante pour entourer une partie au moins du canal de sortie, ce qui réduit la rotation de l'électrode implantée séparément. En ne rendant électroconductrice qu'une partie de la surface de l'électrode implantée séparément, et particulièrement les bords ou coins, l'électrode obtenue, qui est de forme allongée conformément à la description, délivre une courant électrique de plus haute densité pour une stimulation plus efficace.
Patent CA-2259006-A1 (CA)
Inventor: MIRRO EUGENE JR
IPC: G01F1/684
Filed: 1998-04-10
Abstract: A device and method for accurately measuring small distances using gas flow sensing. The device has both a measurement and a reference gaging conduit, each including a hot-wire anemometer. The differential sensing achieved by use of the reference filters out changes in the gas property. The matched physical configuration of the reference and the measurement gas flow paths miminizes sensitivity of the system to acoustic disturbances. High-mass high thermal conductivity support needles significantly improve the response time for the hot-wires. A sintered metal diffuser in the gas flow path reduces the noise originating in the gas supply.
Patent CA-2259020-A1 (CA)
Inventor: PERETZ JACOB
IPC: A61C15/02
Filed: 1999-01-20
Abstract: Our invention related to a "DISPOSABLE DENTAL INNER PICK." A particular application is for the device to be able to effectively clean the inside and outside teeth (in-between) and gumlines from food debris, plaque, tartar and other such foreign material imbedded in-between one's teeth in particular after having a meal.    While the device's main focus is to clean in-between one's teeth inside and outside, it is also highly effective in massaging and stimulating gum tissue which prevents GINGIVITIS (a minor inflammation of the gum caused by plaque building up above one's gumline) when used in a conscientiously applied program of oral and dental care.      The main problem in trying to clean one's teeth in particular the INSIDE PORTION (teeth inside one's mouth) is it's poor limited access, even with one person's mouth fully wide open, a conventional toothpick is impossible to insert inside the mouth's opening, not only is it ineffective but also downright dangerous, gumline puncture, tongue and mouth injury becomes pervasive if one is not careful. The invention, by no means is designated to eliminate other functional tools such as dental floss, specially designed toothbrushes and other highly effective tools and gadgets but will only add-on more depth in combating tooth decay and gumline disease and recession. Because of the nature of its intended use and purpose, for personal use in one's oral hygiene and dental care and for safety and health reasons the device is designed and manufactured for use as one-time use disposable item. To effectively clean the INSIDE and OUTSIDE portion of one's teeth and gumlines is the main intention and purpose of the invention, its main primary objective is to cover such problem area.
Patent CA-2259076-A1 (CA)
Inventor: FITZGERALD PETER
IPC: G06Q20/00
Filed: 1999-01-15
Abstract: Disclosed is a mobile electronic payment terminal (10) to which a standard mobile communications device (40) such as a cellular telephone may be connected to enable full mobile EFTPOS transactions to occur. The assembly (5) of terminal (10) and communications device (40) is able to be held by hand.    The invention conveniently reduces or eliminates the need for a merchant to purchase a dedicated communications device for EFTPOS transactions thus reducing cost.