baber/WOPTO huggingface dataset:
Patent CA-2048821-C (CA)
Title: Vandal resistant push button assembly
Inventor: MARTIN ADOLF
IPC: H01H3/12
Filed: 1991-08-08
Granted: 2004-11-02
Abstract: A vandal resistant push button assembly has a guide ring attached to a mounting plate spaced from a face plate such as an indicating and announcing device or a modular wall S assembly of an elevator car. The guide ring has a first shoulder which cooperates with a snap ring engaging a first annular groove formed in the guide ring for retaining the ring in an opening formed in the mounting plate. There is play between the periphery of the opening in the mounting .0 plate and the outer diameter of the guide ring such that the guide ring can be aligned with respect to an opening in the face plate and the snap will cover the gap defined by the play. A push button slidably extends through the guide rings on first and second guide surfaces to actuate a switch and a second shoulder formed on the push button engages a stop surface on the guide ring to prevent further travel in the actuation direction. Spring forces originating from the switch press the push button forward to a rest position at which a spring clip engaging a second groove formed in the push button abuts an end of the guide ring. In this position, a seamless spherical surface is formed by the push button and the guide ring at the face plate.
Patent CA-2049829-C (CA)
Title: Method of improving the corrosion resistance of carbonitrided components made of ferrous materials
Inventor: CHRIST ULRICH
IPC: C23C8/80
Filed: 1991-08-26
Granted: 2001-01-16
Abstract: In order to improve the corrosion resistance, carbonitrided components formed of ferrous material are treated, after an oxidation treatment, with a solution of a thermosetting organic synthetic resin and heat-treated at 80°C to 200°C.
Patent CA-2055249-C (CA)
Title: Kit for newspaper page layout
Inventor: CAMPBELL FREDERICK
IPC: B42D7/00
Filed: 1991-11-08
Granted: 2006-04-11
Abstract: The present invention enables persons with little or no previous knowledge in the corresponding field to produce professional looking newspapers and newsletters on a frequent basis. The present invention comprises a kit used in creating the page layouts for the pages of a newspaper edition. The page layouts according to the present invention employ a simple format based on two columns and standard sizes for photographs, flags and copy. The page layouts may be produced with a variety of technologies, including computer programs, typewriters, stencil duplicators (e.g. Gestetner.TM.) and transfer lettering (e.g. Letraset.TM.). The associated production technique, based on simplified traditional newspaper paste-up, permits use by people without any formal training. The compartmentalized, over-all design facilitates the group's conceptualization of the basic reporting skills which bring in raw material for the newspaper. The simple, repetitive format and the production techniques require no training so volunteers themselves may do the work.
Patent CA-2060347-C (CA)
Inventor: AOKI KANJI
IPC: B66F9/20
Filed: 1992-01-30
Granted: 1995-01-17
Abstract: ?. ABSTRACT    In a control device for forklift on which a flow con-trol signal is sent from a controller in accordance with a manipulated variable of work machine lever operated by the operator and this flow control signal regulates the degree of opening of an electromagnetic proportional control valve in an oil pipe line to control the working speed of lift cylinders,  the degree of  opening of  the  electromagnetic proportional control valve is regulated by a flow control signal having a characteristic such that the value of flow control signal changes in accordance with the load of lift cylinders in the inching zone where the manipulated variable of work machine lever is relatively small, which improves the operability in the inching zone.
Patent CA-2064002-C (CA)
Title: Process for treating a porous substrate to achieve improved water and oil repellency
Inventor: KENIGSBERG YITZCHAK
IPC: D21H19/48
Filed: 1990-07-20
Granted: 2001-11-27
Abstract: Oil and water repellency is conferred upon porous substrates (10) by treatment with a solution of a monomer (16) of the formula: (C n F2n+1)(CH2)x(CHR)OCOCH = CH2 where n is an integer; X is 0, 1, 2 or 3 and R is H or CH2-OCOCH=CH2. The monomer is polymerized in situ upon the substrate to provide a conformal coating (16') which preserves the porous structure.
Patent CA-2067275-C (CA)
Title: Pharmaceutical formulation containing dirithromycin
Inventor: GREENE JAMES MICHAEL
IPC: A61P31/04
Filed: 1992-04-27
Granted: 2002-11-26
Abstract: Improved tablet containing a novel polymorph of dirithromycin.
Patent CA-2068620-C (CA)
Title: Mattress construction
Inventor: MORRY SLATEON N
IPC: A47C27/06
Filed: 1992-05-13
Granted: 1994-07-26
Abstract: MATTRESS CONSTRUCTION          ABSTRACT OF THE DISCLOSURE     A   conventional   mattress   construction   which includes a  series of interconnected BONNEL type coil springs together  with  top  and bottom covering  layers of fabric and padding is modified by the insertion into some of the coils of a circular cylindrical core member formed from foam which has a length greater than the length of the spring so that ends of the core member project outwardly beyond the end of the springs into engagement with the padding on the top and bottom surfaces of the mattress.   The core member has a diameter which is a friction fit with the inside diameter of the intermediate turns of the spring.  The core members are provided preferably in the centre third of the mattress to increase stiffness in that area and to reduce vibrations being transmitted from one occupant to a second occupant.
Patent CA-2074553-C (CA)
Title: Methode et appareil de transmission de donnees numeriques utilisant la modulation d'amplitude en quadrature a codage en treillis
Inventor: PAIK WOO H
IPC: H04N21/438
Filed: 1992-07-23
Granted: 1999-03-02
Abstract: Des méthodes de modulation à codage basées sur des codes de modulation par déplacement de phase en quadrature sont directement incorporées à des systèmes de modulation d'amplitude en quadrature produisant une modulation d'amplitude en quadrature à codage en treillis, pour produire une structure de codage pratique et efficace en ce qui concerne à la fois la largeur de bande et la fiabilité des données. Un codage en concaténation constitué d'un codage en treillis par déplacement de phase en quadrature et d'un codage de correction des erreurs dans les symboles est utilisé. Dans un codeur, une constellation de modulations d'amplitude en quadrature de N bits est divisée en quatre sous-ensembles incluant chacun N/4 points de symbole faisant partie de la constellation. Un mot de code de déplacement de phase en quadrature de deux bits est affecté à chacun de ces quatre sous-ensembles. Le symbole à transmettre est d'abord codé au moyen d'un algorithme de codage à correction des erreurs externe, tel qu'un algorithme de Reed-Solomon. Une partie du symbole est alors codée avec un code interne comprenant un algorithme de codage en treillis à demi-débit pour produire un mot de code de déplacement de phase en quadrature qui est mis en configuration avec les bits restants du symbole pour produire une fonction de modulation, ces bits restants établissant une corrélation entre le symbole et l'un des points de symbole inclus dans le sous-ensemble défini par le mot de code de déplacement de phase en quadrature. Dans un récepteur, la fonction de modulation recouvrée est élaguée pour produire un ensemble de métriques correspondant aux sous-ensembles, ainsi qu'une pluralité de détermination conditionnelle du point de la constellation identifié par les bits restants. Les métriques sont utilisées dans un décodeur de codes en treillis à demi-débit pour recouvrer un premier bit codé au moyen d'un algorithme de codage à demi-débit afin de recréer le mot de code de déplacement de phase en quadrature. L'une des déterminations conditionnelles est choisie en réponse au mot de code recréé. La détermination conditionnelle choisie est combinée avec le premier bit recouvré pour produire le signal de sortie décodé qui est à nouveau décodé au moyen d'un algorithme de décodage à correction des erreurs sur les symboles, tel qu'un algorithme de Reed-Solomon.
Patent CA-2082612-C (CA)
Inventor: KENNEDY JOHN W
IPC: F16B21/08
Filed: 1992-11-10
Granted: 1999-08-31
Abstract: ABSTRACT         Disclosed is a one piece self sustaining fastener for securing a protective liner to the bed of a pick-up truck, the liner having on its two opposite vertical sides openings for receiving individual fasteners, each fastener having an extending portion adapted to pass into an opening of the liner and pass around and out of contact with an adjacent horizontal projecting portion of the rail of the bed, the extending portion having a free end that by a flexing action engages the inside wall of the rail at a point close to but spaced from the upper inside wall of the rail, the fastener also has a base portion at the inner end of the extending portion, including a projecting surface that has a portion that exceeds the dimension of the opening and which engages the outside adjacent surface of the liner, the base portion also has a portion that acts as a pivot when inserting the fastener into the opening and an opposite portion that by thumb pressure assumes a snap locking position after which the extending portion and the base portion fasten the liner to the bed.
Patent CA-2085077-C (CA)
Title: Polysulphide-modified epoxy resins
Inventor: WILFORD ANDREA
IPC: C08L63/00
Filed: 1992-12-10
Granted: 2000-01-11
Abstract: A polysulfide-modified epoxy resin system in which, upon curing, the polysulfide rubber phase separates into discrete particles, typically 1 to 5 µm in size, to enhance physical properties such as peel strength without any significant reduction in glass transition temperature.      The phase separation is brought about by using as a modifier a liquid polysulfide containing a high proportion of polymethylene groups of 4 to 12 carbon atoms. The polysulfide may be adducted with an excess of epoxy resin prior to incorporation in the composition.
Patent CA-2090397-C (CA)
Inventor: THEURER JOSEF
IPC: E01B27/16
Filed: 1993-02-25
Granted: 2004-06-29
Abstract: A track tamping machine (1) comprising a machine frame (3) supported on on-track undercarriages is provided with a vertically adjustable tamping unit and a lifting-lining unit (12) having lifting and lining drives and also a lifting member (20), with which is associated an auxiliary lifting device (15) having at least one gripping member (31) for gripping a rail (23) of a branch track (24) and comprising its own lifting drive (28). The gripping member (31) is arranged on a support frame (26) and is adjustable relative to the machine frame (3) by means of a displacement drive (30).      Associated with the auxiliary lifting device (15), in the end region which is connected to the gripping member (31), is a contact part (33) for positioning on top of the rail (23) to be gripped by the gripping member (31).
Patent CA-2092298-C (CA)
Title: Reseau optique passif
Inventor: CLARKE DONALD ERIC ARTHUR
IPC: H04B10/272
Filed: 1991-10-17
Granted: 1997-12-23
Abstract: L'invention est une station de tête (1) pour réseau optique passif utilisé pour transmettre des trames AMRT via une liaison descendante et recevoir des trames AMRT via une liaison ascendante. Cette station comporte une unité maîtresse AMRT (5) et une pluralité d'étages optiques (4a, 4b) tous connectés à l'unité maîtresse AMRT (5). Celle-ci assemble les données incidentes en trames AMRT de liaison descendante et démultiplexe les trames AMRT de liaison ascendante. Chaque étage optique (4a, 4b) est installé de façon à pouvoir être connecté à un réseau de fibres différent (3a, 3b) et comporte un émetteur optique qui module un signal lumineux avec des trames AMRT de liaison descendante provenant de l'unité maîtresse AMRT (5), ainsi qu'un récepteur optique pouvant détecter un signal lumineux contenant des trames AMRT de liaison ascendante.
Patent CA-2093331-C (CA)
Title: Valve control apparatus
Inventor: EDWARDS JEFFREY CHARLES
IPC: E21B23/00
Filed: 1991-09-30
Granted: 2001-08-28
Abstract: The present invention provides a novel valve arrangement that enables the opening and closing of the test string circulation valve, and - when the valve is closed - the opening and closing of the tubing isolating valve, as many times as desired. To attain this end a number of arrangement are em-ployed: 1) the use of a 3-slot indexer to control the operation of a tool, the slot being in the form of two closed loop tracks (one laying within the other, with a common part), the two tracks controlling two different tool mode op-erations; 2) the operation of a multimode tool by a succession of annulus pressure pulses, wherein an initial operation is effected by pressure changes of a first pulse, and the operation following the subsequent pressure change is effected slowly so that, if a second pulse occurs within a given time (from the preceding pulse), the mode of the tool is altered and a third pulse thereof-ter causes a different operation to be initiated; 3) the use of two separate J-slot indexers, each in the form of a closed loop track, to control tool opera-tion, one J-slot indexer controlling the movement of a first operating member connected to and driving a second operating member the movement of which is controlled by the other J-slot indexer.
Patent CA-2100988-C (CA)
Title: Procede et appareillage pour l'obtention de materiaux moules stabilises a partir de dechets
Inventor: PICHAT PHILIPPE
IPC: B29C48/92
Filed: 1993-07-21
Granted: 2005-01-18
Abstract: L'invention concerne un procédé pour l'obtention de matériaux moulés stabilisés à partir de déchets consistant à malaxer le déchet avec un agent de solidification et à mouler par extrusion le matériau obtenu sous vide à température constante. L'appareillage correspondant comporte un malaxeur (1) reliée d un dispositif de moulage (2).
Patent CA-2102859-C (CA)
Title: Expression vector for phytolacca antiviral protein
Inventor: LEE KWAN-HO
IPC: C12N15/70
Filed: 1993-11-10
Granted: 1998-04-28
Abstract: The present invention provides a novel expression vector for Phytolacca antiviral protein isolated from Phytolacca americana L. and a microorganism transformed with said PAP expression vector.   In accordance with the present invention, biologically active PAP can be produced in a massive manner from the microorganism transformed with the expression vector of the invention; and, therefore, the recombinant PAP can be practically applied to various fields, e.g., the molecular studies on PAP and treatment of AIDS employing immunoconjugate.
Patent CA-2103132-C (CA)
Inventor: REINHALL ULF B
IPC: D21D1/30
Filed: 1993-11-15
Granted: 1998-05-12
Abstract: This invention relates to a method of refining pulp stock in which the pulp material to be ground is introduced into a grinding space located between a first rotatable grinding device carried by a shaft and being axially displaceable by a servo motor, and a second non-rotatable grinding device.  The servo motor is actuated by pressurized fluid for adjusting and controlling the grinding space, producing a grinding pressure between the first and the second grinding devices and for preventing axial displacement of the first rotatable grinding device relative to the second non-rotatable grinding device in response to fluctuating axial grinding forces.  The second non-rotatable grinding device comprises a plurality of concentrically arranged annular grinding members, at least one of which is axially adjustable by a setting device.
Patent CA-2111570-C (CA)
Inventor: KERRY JOHN
IPC: G02B6/44
Filed: 1992-06-18
Granted: 2001-02-20
Abstract: An optical fibre connection terminal for use in the office or domestic environment comprises a three-part module, having a base unit (1a, 1b), an organiser unit and a top unit. An optical fibre cable such as a blown fibre cable, is brought to the base unit (1a, 1b) where both the outer covering and the secondary coated optical fibres carried by the cable are secured against tensile forces.      The three units (1, 2, 3) of the module are then designed to store fibre, to hold splice protectors where necessary, and to provide a well protected route for the fibres from the cable to an easily accessible connection point for customer use in the top unit of the module. Connection or termination of each fibre at the connection point can be made and remade, drawing spare fibre length from a storage area in the module without disassembling the module. An important part of the module lies in a cam action clamping mechanism for retaining fibre within the module. The module provides an optical fibre connection terminal which is equivalent to a 13 amp mains electricity terminal for connection of domestic or office equipment to an optical communications network.
Patent CA-2116248-C (CA)
Title: A reactor
Inventor: BATTERHAM ROBIN JOHN
IPC: B01F5/04
Filed: 1993-07-09
Granted: 2004-11-09
Abstract: A reactor for introducing a gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13, 45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump means (14, 47) located in one of the chambers for circulating the fluid downwards in one chamber and then upwards in the other chamber and an aerator assembly (29, 49) for aerating a sidestream of the fluid and introducing the aerated fluid into the tank for mixing the aerated fluid with the circulating fluid in the tank. The aerator assembly (29, 49) comprises a bank of venturi aerators (38, 57) each having an aerator inlet; an aerator outlet; and a constriction intermediate the aerator inlet and the aerator outlet for creating a region of reduced pressure in the fluid, the constriction being elongate in a section transverse to the direction of flow of the fluid through the constriction; and a means for introducing the gas into the constriction to aerate the fluid.
Patent CA-2119888-C (CA)
Inventor: PHILLIPS MARY F
IPC: G01N33/98
Filed: 1992-09-25
Granted: 2001-09-11
Abstract: A monitor device (102) which measures ethanol levels expelled through a subject's skin to monitor blood alcohol level with a gas content sensor (218) at regular or random intervals. The device differentiates between a positive reading caused by an exter-nal, interferant, gas and a positive reading caused by consumption of alcohol.  The device has a temperature sensor (220) which monitory the skin temperature of the subject prior to performing the alcohol test to provide an indication of a barrier being placed between the device and the subject's skin or if the device has been removed from the subject. The device measures the distance from the object's skin by means of a distance sensor (222) thereby preventing the subject from moving the device far enough away to provide an inaccurate indication of the amount of alcohol in the subject's blood and providing another tamper indication if the device is removed.
Patent CA-2121890-C (CA)
Title: One-piece fitment and cap with tamper-evident band
Inventor: LUCH DANIEL
IPC: B65D47/36
Filed: 1992-10-21
Granted: 2003-01-28
Abstract: A fitment (11) and cap (12) therefor are integrally molded with lugs (51) interconnecting the parts. The fitment has a flange (16) to be attached to a container and an internally threaded spout (19). The cap has an externally threaded skirt (32). The lugs are diametrically spaced and interconnect the bottom edge of the skirt and upper edge of the spout. After molding, force is appli-ed to break the lugs and snap the skirt inside the spout, the threads slipping past each other and interengaging. A tamper-evident band (41) extends around the skirt and is connected thereto by frangible bridges (42). At diametrically spaced locations vertically projecting fingers (48) extend down from the tamper evident band and are received in sockets on the fitment flange shape so that the band fingers prevent unscrewing the cap without removing the tamper-evident band. A pull tab (44) and thumb tab (46) assist the consumer in removing the tamper evident band so that the cap may be unscrewed from the fitment.
Patent CA-2124158-C (CA)
Inventor: HECHT DANIEL H
IPC: C04B35/52
Filed: 1994-05-24
Granted: 2005-09-13
Abstract: Self-reinforcing, pitch-based carbon articles having an unique combination of excellent thermal conductivity and outstanding mechanical properties are produced by carbonizing acid-treated mesophase pitch fiber, preferably in the form of a preform structure. The carbon articles having varying degrees of porosity are particularly desirable for use in thermal management and stiffness applications, and in carbon vapor infiltration processes employed in making complex solid carbon articles.
Patent CA-2125624-C (CA)
Inventor: ISHIHARA MIKIYA
IPC: E05F11/20
Filed: 1994-06-10
Granted: 1997-07-22
Abstract: A quarter window opening/closing apparatus in which a torsion coil spring is provided at a link-connecting portion where a second link is rotatably connected to a first link is provided.  When the quarter window is in a state other than a fully closed or fully open state, the torsion coil spring urges the quarter window in its opening direction by means of the second link.  Accordingly, the occurrence of rattling of the quarter window is prevented even when the quarter window is in a state other than fully closed or fully open.
Patent CA-2127122-C (CA)
Title: Tobacco treatment
Inventor: PORTER ANDREW R
IPC: A24B15/20
Filed: 1992-12-29
Granted: 1998-12-29
Abstract: This invention provides a method for reducing the protein content of tobacco material which includes extracting the tobacco material with a surfactant and optionally, a proteolytic enzyme. The tobacco material may be first extracted with an aqueous solvent to produce an aqueous extract before being treated with the surfactant. This invention also provides a method for removing polypeptides from an aqueous extract of tobacco material which includes treating the extract with an insoluble adsorbent selected from the group comprising hydroxyapatite and a fuller's earth mineral such as bentonite. Treatment of the aqueous extract with bentonite will produce an extract having a reduced pigment and polypeptide content.
Patent CA-2128007-C (CA)
Inventor: PARK CHUNG P
IPC: C08J9/12
Filed: 1992-12-17
Granted: 2004-04-06
Abstract: Disclosed is a process for making low density, dimensionally-stable, extruded propylene polymer foam comprised primari-ly of an expanded propylene polymer material wherein the foam has a blowing agent comprising at least 15 percent by weight of one or more inorganic blowing agents. The foam has a density of from 10 to 150 kilograms per cubic meter, and an average cell wall thickness of less than 35 micrometers. Further disclosed is a foam obtainable from the process.
Patent CA-2129519-C (CA)
Title: Support pour platre et autres enduits semblables
Inventor: KREIKEMEIER JOHN E
IPC: E04F13/04
Filed: 1993-02-05
Granted: 1999-02-23
Abstract: Grillage (10) employé pour mettre en oeuvre du plâtre ou un matériau analogue sur un substrat. Ce grillage (10) a essentiellement pour configuration celle d'une grille plane thermoplastique présentant une première série de bandes (21) relativement plate de forme allongée s'étendant latéralement et une deuxième série de bandes (11) de forme allongée s'étendant à la perpendiculaire de la première. Le grillage présente d'une manière générale un côté lisse (23), où les première et deuxième séries de bandes définissent une multiplicité d'ouvertures (24) transversales à travers ledit grillage, la deuxième série de bandes (11) présentant des pointes (13) du côté opposé au côté lisse de la grille, ayant pour effet de maintenir la grille à une certaine distance de son substrat et de permettre ainsi l'insertion d'une certaine quantité de plâtre entre le grillage (10) et son substrat sans qu'il ne soit nécessaire d'utiliser des lattes.