baber/WOPTO huggingface dataset:
Patent CA-2038729-C (CA)
Inventor: ODA KIYOSHI
IPC: A44B19/30
Filed: 1991-03-20
Granted: 1995-12-05
Abstract: A lockable slide fastener slider comprises an upper wing and a lower wing defining therebetween a guide channel for the passage of fastener coupling elements, a pull tab pivotably mounted on the upper wing and a locking member having a locking prong movable into and away from the guide channel.  A resilient means is provided in operative relation to the pull tab for urging the latter to lie substantially flat against the upper wing.
Patent CA-2043856-C (CA)
Title: Apparatus for correcting a color tone of a video signal
Inventor: KAGEYAMA ATSUHISA
IPC: H04N9/77
Filed: 1991-06-04
Granted: 1995-10-03
Abstract: A color-tone correcting apparatus includes a first device for detecting a greatest signal of first input component video signals, and outputting the detected greatest signal.  A second device serves to remove small-level components from the output signal of the first device, and to limit an amplitude of the output signal of the first device to within a predetermined amplitude.  A third device serves to add an output signal of the second device and a second input component video signal.
Patent CA-2050458-C (CA)
Inventor: CAIRNS JOHN F
IPC: C25B9/17
Filed: 1991-08-30
Granted: 2001-12-04
Abstract: An electrode which comprises a substrate of a valve metal or an alloy thereof having properties similar to those of the valve metal and a coating comprising an outer layer which comprises RuO2, an oxide of at least one non-noble metal and at least one other noble metal or oxide thereof and an intermediate layer having a composition different from that of the outer layer and which comprises RuO2 and an oxide of at least one non-noble metal. The electrode is particularly useful as an anode for an electrolytic cell, eg a chlor-alkali cell, it has a lifetime therein which is greater than the sum of the operational life-times of electrodes which comprise a valve metal substrate and which separately comprise one of the above layers which together form a part of the coating of that electrode.
Patent CA-2057595-C (CA)
Title: Electrical kettle with electrical connection block and stand
Inventor: LACOMBE JACQUES
IPC: A47J27/21
Filed: 1991-12-13
Granted: 1995-08-22
Abstract: The electric kettle comprises a water container (1) and an electric resistance (2) for heating up this water, this container resting on a stand (3) into which penetrates the electric supply lead of the kettle, the lateral wall (5) of the container (1) carrying a control and electrical-connection block (6) from which project pins  (7,  8)  which come into contact with conductive blades  (10,  11) housed in a protuberance (13)  of the stand (3).        The pins (7, 8) are bent substantially at right angles, apertures (14) being provided only on the top (18) of the protuberance (13) of the stand (3) to receive the end of said pins  (7,  8)  and to guide the latter toward the blades (10, 11).        Use,  in particular, to achieve greater safety when using electric kettles.
Patent CA-2062732-C (CA)
Title: Proteinases de type subtilisine mutees
Inventor: BRANNER SVEN
IPC: C12N1/15
Filed: 1990-06-26
Granted: 2000-05-23
Abstract: L'invention concerne des enzymes produites par mutation des gènes destinés à un certain nombre de protéases de subtilisine, et par expression des gènes ayant subi une mutation dans des hôtes adaptés. Les enzymes ayant subi une mutation présentent une charge électrostatique nette changée par rapport à la protéase mère au même pH. Les enzymes présentent une capacité de lavage supérieure par rapport à leurs enzymes mère de type sauvage. Les enzymes sont bien adaptées pour être utilisées dans des compositions de détergents.
Patent CA-2064784-C (CA)
Title: Stratifie capacitif pour cartes de circuits imprimes
Inventor: HOWARD JAMES R
IPC: H05K1/16
Filed: 1990-08-22
Granted: 1998-11-24
Abstract: Cette invention concerne un stratifié capacitif devant entrer dans la fabrication d'une carte à circuits imprimés (10) ou faisant déjà de ce produit fini afin de servir de condensateur de dérivation aux dispositifs montés sur celui-ci. L'objet de l'invention est formé de pellicules conductrices disposées de part et d'autre d'un matériau diélectrique pour former un ensemble capacitif rigide dont les composants ont des caractéristiques choisies de telle sorte que chaque dispositif (12) ait accès à une capacité de condensation d'une portion proportionnelle du stratifié avec possibilité d'emprunt à d'autres portions du stratifié, la fonction capacitive étant asservie au fonctionnement aléatoire des dispositifs. Cette invention propose également des méthodes de fabrication, des cartes à circuits imprimées capacitives et des techniques de traitement de surface.
Patent CA-2068754-C (CA)
Title: Fluoroelastomers based on vinylidene fluoride exhibiting superior resistance to organic bases
Inventor: ARCELLA VINCENZO
IPC: C08J3/24
Filed: 1992-05-15
Granted: 2006-03-14
Abstract: Fluoroelastomeric copolymers exhibiting high resistance to bases and alcohols, as well as high mechanical properties and low-temperature resistance, comprising, in moles: 4-75% of units of vinylidene fluoride; 12-40% of units of hexafluoropropene and/or perfluorovinylether and/or hydropentafluoropropene and/or chlorotrifluoroethylene; 2-35% of units of an olefin containing up to 4 carbon atoms; 2-60% of units of tetrafluoroethylene, provided that, when the sum of the olefin units and the perfluorovinylether units is equal to or greater than 700, such copolymers possess a molecular weight sufficiently high to exhibit good mechanical characteristics.
Patent CA-2073430-C (CA)
Inventor: BURLEY GREGORY STEPHEN
IPC: H01S5/06
Filed: 1990-11-30
Granted: 1998-03-31
Abstract: Circuit de commande de diode laser permettant de maintenir à un niveau désiré la puissance de sortie moyenne de la diode laser (10) en détectant (18) la sortie optique, en amplifiant (24) la sortie détectée et en commandant un courant polarisé (14) de la diode laser en conséquence. Une tonalité pilote (20) est combinée à la sortie détectée (18) et amplifiée avec elle, et le niveau amplifié (24) de la tonalité est détecté (22) et utilisé pour commander (26) un courant de modulation (16) pour la diode laser. Dans un montage décrit, la diode laser (10) est commandée pour qu'elle présente un rapport d'extinction élevé relativement au courant polarisé au coude (42) de la courbe caractéristique de la diode. Dans un autre montage, un rapport d'extinction faible est produit relativement au courant polarisé au-dessus du coude (42).
Patent CA-2076831-C (CA)
Inventor: ERICKSON WILLIAM C
IPC: H01H3/00
Filed: 1992-08-25
Granted: 1998-11-10
Abstract: A trip-free operating mechanism for a load break switch of the type having a fixed contact engageable by a movable contact between a fully closed position and a fully open position.  The operating mechanism includes an operating lever connected to the movable contact and rotatable about a shaft to move the contact between its open and closed positions.  A follower rotates on the shaft into and out of contact with the operating lever.  A closing spring biases the operating lever and the follower towards each other.  An opening spring drive connects to the follower to drive the follower to its switch contact open position.  A first latch holds the operating lever and follower apart against the force of the closing spring when the operating lever is in its switch contact closed position.  A manual and a solenoid actuated strip mechanism are provided to release the first latch to allow the closing spring to rotate the follower into engagement with the operating  mechanism and to rotate the spring drive to quickly drive the operating lever to its switch contact open position.  A second latch retains an operating handle in its closed position until the closing spring rotates the follower into engagement with the operating mechanism. The operating handle is nudged to fall by gravity to its switch open position when the follower rotates to its-switch contact open position.  The operating handle engages the follower in the switch contact open position to rotate the follower to near its switch closed position while the operating lever is latched in the switch open position.  The operating lever latch may be released by rotation of the follower or by actuation of a second solenoid.
Patent CA-2077565-C (CA)
Title: Methods and apparatus for automatic modification of semantically significant portions of a document without document image decoding
Inventor: WITHGOTT M MARGARET
IPC: G06V30/10
Filed: 1992-09-04
Granted: 1999-08-17
Abstract: Methods and apparatus of processing an undecoded document image in a digital computer to modify the document image so as to emphasize semantically significant portions without first converting the document image to character codes. The document image is segmented into image units, and morphological image characteristics of the image units are evaluated to identify significant image units for emphasis. In one embodiment, the significant image units are emphasized by modifying at least one shape characteristic of the significant image units using at least one uniform morphological bitmap operation applied to the entire image unit bitmaps corresponding to the significant image units.
Patent CA-2081074-C (CA)
Title: Infusion apparatus - all weather type
Inventor: WHITE JOHN LESLIE
IPC: A61M5/148
Filed: 1992-10-21
Granted: 1996-01-16
Abstract: This all weather type pressure  infusion apparatus has a "THINSULATE"(t.m.) lining giving it thermal retention properties. The disclosed container is wrapped around an intravenous bag so that the upper and lower edges form pockets receiving the top & bottom of the intravenous bag.  It retains the intravenous solution at a constant temperature without the use of any other outside heating or cooling equipment.   The unit accepts both 500cc or 1000cc size solution bags and the volume remaining in the bag can be checked visually through the polyvinyl window without having to open it.
Patent CA-2084205-C (CA)
Title: Vehicle horn with electronic solid state energizing circuit
Inventor: WILSON CARL R
IPC: B60Q5/00
Filed: 1992-03-05
Granted: 1997-06-17
Abstract: A vehicle horn with an electronic solid state energizing circuit (100)  is described.   The horn has an electromagnet for driving diaphragm assembly which has  a  resonant frequency of mechanical vibration.  The energizing circuit generates a DC pulse train for energizing the coil (70) of the electromagnet to drive the diaphragm.  The circuit has an adjustment (86) for setting the pulse repetition rate of the pulse train substantially equal to the resonant  frequency.    It  also  has  an  adjustment  (92)  for independently setting the duty cycle of the pulse train.   The circuit further includes a compensator (82) for varying the duty cycle inversely with changes in the supply voltage.  An electronic power switch (64) is connected in series with the vehicle battery and the horn coil through an unswitched power circuit.   A horn switch (72) is connected in an on/off circuit which connects the battery to a control circuit for generating the pulse train and applies it to the electronic power switch.
Patent CA-2087673-C (CA)
Title: Perforating type lockout tool
Inventor: MEADERS MICHAEL WADE
IPC: E21B29/08
Filed: 1993-01-20
Granted: 2003-08-05
Abstract: A tubing retrievable safety valve, lockout tool and their method of use are disclosed for locking the valve open permanently and provide access to control line pressure by perforating a piston in the valve. The lockout tool comprises a track mandrel having a ramp slidably disposed beneath a punch that is adapted to penetrate the piston wall of the valve at a point adjacent to the control fluid annulus, thereby creating a protrusion adapted to lock the valve open and establishing fluid communication between the control fluid annulus and the valve bore.
Patent CA-2088080-C (CA)
Title: Automatic speech recognizer
Inventor: ROE DAVID BJORN
IPC: G10L11/00
Filed: 1993-01-26
Granted: 1997-10-07
Abstract: Apparatus and method for recording data in a speech recognition system and recognizing spoken data corresponding to the recorded data. The apparatus and method responds to entered data by generating a string of phonetic transcriptions from the entered data. The data and generated phonetic transcription string associated therewith is recorded in a vocabulary lexicon of the speech recognition system. The apparatus and method responds to receipt of spoken data by constructing a model of subwords characteristic of the spoken data and compares the constructed subword model with ones of the recorded lexicon vocabulary recorded phonetic transcription strings to recognize the spoken data as the data identified by and associated with a phonetic transcription string matching the constructed subword string.
Patent CA-2091604-C (CA)
Title: Fluid control device including automatic valve
Inventor: KARG JEFFREY
IPC: A61M5/168
Filed: 1993-03-15
Granted: 2002-07-16
Abstract: A fluid delivery device and method of delivering fluid is provided. The device comprises a delivery member including a member for creating a vacuum pressure, to suck fluid into a reservoir, and for expelling fluid from the reservoir. A body is provided including a first opening, a second opening, and a third opening, the interior of the body defining a first fluid pathway from the first opening to the second opening and a second fluid pathway from the second opening and a second fluid pathway from the second opening to the third opening.     The delivery member is coupled to the second opening.      A fluid source is coupled to the first opening. A fluid conduit is coupled to the third opening for allowing the device to deliver product to a patient. The first and second fluid pathways are defined in part by walls that define a central cavity and a diaphragm located therein.      The diaphragm closing both the first and second fluid pathways when it is in a first, static position and opening the first pathway when the delivery member creates a vacuum pressure, while maintaining the second pathway in a closed position. When the delivery member creates a positive pressure, the second pathway is opened while the first fluid pathway is maintained in a closed position.
Patent CA-2094133-C (CA)
Inventor: WHEATLEY CHARLES E III
IPC: H03G3/10
Filed: 1991-10-15
Granted: 2000-01-11
Abstract: Circuit d'amplification ayant un circuit de compensation (10) destiné à recevoir un signal de commande et à générer un signal de compensation en fonction de caractéristiques prédéterminées. Un circuit d'amplification d'entrée (12) est prévu pour recevoir un signal d'entrée et le signal de compensation, amplifier le signal d'entrée jusqu'à un niveau de gain d'entrée déterminé par le signal de compensation et fournir un signal de sortie correspondant du circuit d'amplification d'entrée. Un filtre (14) reçoit et filtre les composantes de fréquence non voulues pour les éliminer du signal de sortie du circuit d'amplification d'entrée. Un circuit d'amplification de sortie (16) est prévu pour recevoir le signal de sortie filtré du circuit d'amplification d'entrée et le signal de compensation, amplifier le signal de sortie du circuit d'amplification d'entrée, jusqu'à un niveau de gain de sortie déterminé par le signal de compensation et fournir un signal de sortie correspondant du circuit d'amplification de sortie.
Patent CA-2101485-C (CA)
Inventor: MCAFEE BRENDA J
IPC: A01N63/30
Filed: 1993-07-28
Granted: 1999-10-12
Abstract: The present invention consists of a method of protecting wood or wood products against unwanted sapstain by a combination of pasteurization and treatment of the wood with a biological control agent. The biological control agent is one that substantially reduces the levels of sapstain in the wood or wood product after pasteurization so that the wood is considered commercially acceptable. Fungi selected from the class Hyphomycetes have been shown to be effective anti-sapstain agents.
Patent CA-2104914-C (CA)
Inventor: BARNDT RICHARD LEE
IPC: A21D10/00
Filed: 1993-08-26
Granted: 2005-05-10
Abstract: Reduced sugar content baked goods which contain potato fiber as a bulking agent, wherein said baked goods are produced by baking a mix which comprises the following dry ingredients: (a) flour; (b) sweetener (which may be sugar in a reduced proportion, a high intensity sweetener such as sucralose, or a combination of a reduced proportion of sugar and high intensity sweetener); (c) potato fiber; and (d) an emulsifier, shortening, or both.
Patent CA-2117279-C (CA)
Inventor: VASIL JAMES FRANCIS
IPC: B01D53/14
Filed: 1994-05-20
Granted: 2000-01-18
Abstract: A method and composition are disclosed for sweetening, i.e., selectively reducing the levels of H2S and organic sulfides, in gaseous hydrocarbons streams, particularly natural gas streams. A natural gas in a pipe line, at the well head, or at a common col-lection point from a number of wells, is contacted with a sweetening agent comprising the reaction product of ethylene diamine with 50% uninhibited aqueous formaldehyde. The reaction product is prepared by reacting one part 99% ethylene diamine with two parts 50% aqueous uninhibited formalin at a temperature of about 55-60°C. (higher temperatures may be used if the reaction is carried out under pressure) and is characterized by having a higher flash point, lower toxicity, and a lower freezing point, and better reaction rates, than other sweetening agents currently in use. The sweetening solution is water soluble, free from methanol or other alcohols, does not foam uncontrollably in use, and is free from water insoluble solids which would interfere with the injectability of the solution into a stream of flowing natural gas. The sweetening reaction takes place in-line without the need for a holding tank or reaction vessel. However, the treatment with the sweetening agent may also be carried out in a conventional gas treating tower. The reaction is complete and effective to completely sweeten a sour gas system.
Patent CA-2117568-C (CA)
Inventor: DINIZ MILTON EGAS
IPC: H01R4/00
Filed: 1994-08-24
Granted: 2000-02-01
Abstract: A wedge component (1) for an electrical tap connector employed for the connection of conductors (5) of electrical distribution networks.  The wedge (1) is generally trapezoidal in shape, can be manufactured of aluminum, and includes a lowering (2) and a reinforcement projection (3) longitudinally extending between side grooves (4,4').  The wedge (1) is lightweight, inexpensive, and strong since the reinforcement projection (3) provides strength for the tap connector wedge component (1) when it is applied to the conductors (5).
Patent CA-2119939-C (CA)
Inventor: YOSHIOKA YUKA
IPC: H04W72/08
Filed: 1994-03-25
Granted: 1998-09-15
Abstract: A radio communication apparatus for use in a time division multiple access (TDMA) communication system prevents signals from being transmitted through a transmitter in response to recognition that the transmitter operates during an unassigned time slot. A controller is utilized to recognize that the transmitter operates during the unassigned time slot. Power to the transmitter is disconnected in response to the recognition.
Patent CA-2120586-C (CA)
Inventor: RIGGS DENNIS MICHAEL
IPC: A24D1/22
Filed: 1994-04-05
Granted: 2006-05-30
Abstract: The present invention is directed to a composition suitable for making fuel elements for smoking articles, which comprises at least about 50 weight percent, preferably at least about 60 weight percent, and most preferably at least about 70 weight percent powdered elemental carbon, preferably carbon obtained from the controlled carbonization of hardwood paper pulp. The fuel composition also comprises at least about 1 weight percent, preferably at least about 5 weight percent, and most preferably at~ least about 10 weight percent of a suitable binder. The fuel composition of the present invention can include at least about 3 weight percent, preferably at least about 5 weight percent, and most preferably at least about 8 weight percent powdered graphite. Finally, the fuel composition of the present invention can include at least about 1 weight percent, preferably at least about 2 weight percent, and most preferably at least about 3 weight percent of a suitable inorganic filler such as calcium carbonate, or the like. If necessary or desired, other additives can be included in the fuel compositions of the present invention, including up to about 10 weight percent powdered tobacco and/or up to about 1.5 weight percent sodium carbonate; and the like.
Patent CA-2124893-C (CA)
Title: Tilting and sliding surface assembly for a table
Inventor: SEIDL LON D
IPC: A47B17/02
Filed: 1994-06-01
Granted: 1998-11-24
Abstract: A tilting and sliding surface for use with a table or other work surface is received within an opening or space defined by the stationary surface of the table or work surface.  A combination tilting and sliding mechanism mounts the movable surface to the stationary surface.  The tilting and sliding mechanism includes a fixed bracket assembly mounted to the stationary surface, and a movable bracket assembly pivotably interconnected with the fixed bracket assembly and to which the movable surface is mounted.  A sliding mechanism is interposed between the movable bracket assembly and the movable surface.  A tilt lock mechanism selectively clamps the movable bracket assembly to the fixed bracket assembly in a desired pivoting position according to user requirements The sliding mechanism includes lateral guide members fitted with bearings, which are received within channel structure defined by a slide member mounted to the underside of the movable surface.
Patent CA-2127499-C (CA)
Inventor: GUMPESBERGER RALPH PETER
IPC: A01K1/015
Filed: 1994-07-06
Granted: 1998-06-16
Abstract: A device for sifting a siftable material comprises at least three nestable trays. The trays are stacked to form a vertically stacked array. Each tray has a base having a plurality of ribs defining a plurality of openings sized to permit the material to pass through, while preventing passage of large objects. The openings of each tray are arranged in a pre-set pattern so that pairs of trays may be nested together with the openings of one tray blocked by the ribs of the other. The trays may be identical with the openings arranged asymmetrically in the base of each tray, so that the necessary interference or blocking is achieved by rotating each tray relative to the adjacent tray. Alternatively, the openings can be symmetrically located with two different trays being provided, having complementary patterns of openings. The stacked array of trays can be configured as a cat litter container, or used for sifting a variety of the material.
Patent CA-2128150-C (CA)
Inventor: ROHRMANN JURGEN
IPC: C08K7/04
Filed: 1994-07-15
Granted: 2005-09-20
Abstract: A polypropylene molding composition which comprises 0.5 to 15% by weight of dark mineral fibers, in particular basalt fibers, can be processed to moldings having a decorative surface. These moldings are used for domestic appliances, for motor vehicles, in the building sector for office items and many other applications.
Patent CA-2131071-C (CA)
Title: Rod or piston seal
Inventor: ARNDT ERNST-MORITZ
IPC: F16J15/3236
Filed: 1994-08-29
Granted: 2001-01-16
Abstract: A rod or piston seal with a seal body of polymeric material has a seal surface for engagement with a relatively movable surface to be sealed which seal surface is interrupted in the direction of movement by at last two circumferentially extending grooves that are positioned at a selected distance from each other. The distance between adjacent grooves is respectively covered by an intermediate web. The ratio A  of the width of the webs to the width of the grooves measured in direction of movement is 1:2 to 200:1, the ratio B of the width to the depth of the grooves is 10:1 to 1:5 and the depth of the grooves is about 1 to 200 micrometer. The seal is more economically manufactured, provides for a lower friction between the seal surface and the surface to be sealed, and maintains good operating characteristics over a long service period.