baber/WOPTO huggingface dataset:
Patent CA-2262823-C (CA)
Inventor: RICHARDSON TIMOTHY M
IPC: G02B21/06
Filed: 1999-02-24
Granted: 2004-04-27
Abstract: A novel illuminator for a field microscope, which takes the place of the condenser and the light source and collimating optics in a traditional microscope, is described. The illuminator is described in several embodiments which cover bright-field transmitted light, bright-field reflected light, dark-field transmitted light and dark-field reflected light as well as uni-directional oblique and slit-ultra illumination techniques. The light sources are modular so that they can be interchanged on the microscope, and they feature ultra-low power and current consumption, integral dimming control, battery power and light weight. Optically the illuminators offer extremely flat field illumination along with excellent colour correction or selectable narrow wavelengths. The illuminators are characterized by high optical efficiency and small size.
Patent CA-2263218-C (CA)
Inventor: KICH ROLF
IPC: H01P7/06
Filed: 1999-02-26
Granted: 2002-01-29
Abstract: An electromagnetic resonator (10) comprises a waveguide body (12) having a generally tubular side wall (14) and a pair of end wall assemblies (18). The end wall assembly (18) includes a bowed aluminum plate (22) and an INVAR disk (24), attached to one another at the periphery thereof. The INVAR disk (24) includes a relatively thick outer annular portion (30) and a relatively thin inner circular portion (32). The bowed aluminum plate (22) bows in response to increased temperature, thereby counteracting expansion of the waveguide body (12).
Patent CA-2267720-C (CA)
Title: Optimum routing of calls over the public switched telephone network and the internet
Inventor: KOZIK JACK
IPC: H04L12/64
Filed: 1999-03-24
Granted: 2002-11-12
Abstract: A method and apparatus for selectively establishing a connection via a telephone network, or via the Internet. A network access switch decides whether to use the telephone network or the Internet. If connections are established using the Internet, the establishment of connection is controlled using existing CCS7 interoffice signaling messages.      Advantagesouly, this permits most of the switching control software to be retained and allows the access switches to interface with the present array of operations support systems.
Patent CA-2270749-C (CA)
Inventor: YANG TAI-HER
IPC: H01G4/30
Filed: 1999-04-29
Granted: 2008-04-15
Abstract: An electricity storage/discharge device includes a plurality of electrode plates separated by isolator members. Each of the electrode plates includes at least two outwardly extending current collecting terminals, at least one conductor through-hole, and at least one isolating opening. The electrode plates can be circular, partially circular, or polygonal, and are electrically connected in series or parallel combinations to plates of opposite or same polarity by a plurality of conductor rods arranged to pass through and be electrically connected to selected ones of said through-holes to form multiple input/output circuits. Isolating openings in the form of notches or additional through-holes having a size larger than the size of the conductor rods are provided to permit passage of the conductor rods through plates to which the rods are not electrically connected. Electrical connection of the conductor rods to the electrode plates via the through-holes can be achieved by welding or press-fitting of the rods, and insulator members can further be provided between the rods and the isolating openings.
Patent CA-2272262-C (CA)
Title: Dental composition system and method
Inventor: LU KEWANG
IPC: A61K6/00
Filed: 1997-10-21
Granted: 2011-07-05
Abstract: The invention provides dental composition system having curable liquid which is useful alone as a light curable composition and which is useful by mixing with a powder in preselected proportions to form dual cure compositions. The composition system is useful as bonding agent, cement, liner, base, restorative, pit and fissure sealants, and/or core build-up material, having improved adhesion to dentin. After storing the powder and the liquid in separate containers for at least two weeks and then mixing a portion of the powder and a portion of the liquid to form a mixture, the polymerizable compound polymerizes within 20 minutes of the mixing to form a first polymeric material having a flexural strength of at least 50 MPs, and an expansion in water at 37 ~C after 90 days of less than 1 percent by volume.
Patent CA-2280052-C (CA)
Title: An arrangement for handling banknotes
Inventor: WENNERSTEN PIRJO RIITTA
IPC: G07D11/00
Filed: 1998-02-10
Granted: 2006-11-14
Abstract: An arrangement for handling banknotes comprises a banknote magazine (10) which is arranged to permit banknotes (39) to be fed in into as well as out from the magazine one by one, and memory means (44) for storing continuously updated information about the contents of said magazine (10). The banknote magazine consists of a controllably rotatable drum (10), containing a plurality of separate magazine compartments (11), formed by sector-like pockets, each of which extends in a generally radial direction into the drum (10) from an opening (27) located at the periphery of the drum. Through rotation of the drum (10), a selectable magazine compartment (11) can be placed with its opening (27) in front of an infeed and/or outfeed station (17, 19, 21) in order to permit an infeed of a bankno te into or an outfeed of a banknote from said compartment (11) by infeed and outfeed means (28), located within the magazine compartme nt (11) and serving also to hold banknote fed in into the magazine compartment (11) within the latter.
Patent CA-2283410-C (CA)
Inventor: PLATZER BERNHARD
IPC: H05H1/30
Filed: 1998-03-03
Granted: 2002-11-12
Abstract: The invention relates to a device for producing RF/HF induced low-energy plasma (17), in particular noble gas plasma, comprising a generator and a supply element for the plasma gas. The invention provides for the generator to be coupled in a known manner to two in particular ring- or disk-shaped parallel, interspaced electrodes (1), each having at least one through-opening, and for at least one isolator (2) to be positioned between said electrodes (1), said isolator having at least one particularly circular through-opening (3) assigned to the through-opening of said electrode, whose through-opening (3) is designed to confine said plasma (17) formed by a plasma gas at a pressure of at least 0.01 bars, but preferably between 0.1 and 5 bars. The inside diameter of the through-opening (4) of said electrodes (1) is at least double, but essentially approximately four to eight times that of the inside diameter of the through-opening (3) of said isolator (2) for confining said plasma (17).
Patent CA-2285613-C (CA)
Title: Mold clamp
Inventor: MARCUZ DARIN A
IPC: B29C45/64
Filed: 1999-02-19
Granted: 2008-03-25
Abstract: A mold clamp (10) has a drive (14) pivotally mounted on a first mold half (26). The drive (14) includes a cylinder body (36) and a piston (38), wherein one of the cylinder body (36) or the piston (38) is pivotally mounted to the first mold half (26) and the other has a pair of pins (50) and a locking plate (56) having an engagement face (64). A guide (18) directs the drive between a retracted position and an extended position. The guide (18) has a pair of spaced apart guide plates (70) mounted to the first mold half (26). Each guide plate (70) has an arcuate slot (72) slidably receiving the pins (50). An abutment (16) is mounted on a second mold half (62). The abutment (16) has a complementary engagement face (68) for cooperating with the engagement face (64) of the drive for enhancing engagement therebetween. When the drive is in the retracted position, the drive engages the abutment (16) to apply a closing force between the first mold half (26) and second mold half (62); when the drive is in the extended position, the drive is canted away from the first mold half (26) allowing reciprocating relative motion between the first mold half (26) and said second mold half (62).
Patent CA-2287707-C (CA)
Title: Surface treatment of copper to prevent microcracking in flexible circuits
Inventor: LEE CHIN-HO
IPC: B32B15/08
Filed: 1999-10-26
Granted: 2003-07-08
Abstract: In one embodiment, the present invention relates to a flexible laminate, comprising a first flexible polymeric film; a copper layer having a microcracking prevention layer on at least one side the microcracking prevention layer sufficient to prevent microcracks in a copper layer having a thickness of up to about 18 µm during at least 50,000,000 bending cycles and/or a copper layer having a thickness of up to about 35 µm during at least 20,000,000 bending cycles of the flexible laminate; and a second flexible polymeric film.
Patent CA-2289999-C (CA)
Title: Holographic statue projection device
Inventor: SUNATORI GO SIMON
IPC: G03H1/24
Filed: 1999-11-12
Granted: 2005-01-11
Abstract: A holographic projection device for displaying a 3-dimensional image has a cylindrical casing, diagonally-cut cylindrical mount, and a circular or elliptical reflection-type hologram in order to project an upright orthoscopic real image or a combination of real and virtual images having both horizontal and vertical parallaxes, perpendicularly to the horizon. The diagonally-placed hologram is illuminated by a point source of white light, preferably a high-efficiency light emitting diode, securely attached to means integrated into the holographic projection device. The holographic projection device may comprise an electric motor for rotatably oscillating the hologram in order to display the front and sides of the 3-dimensional image of a statue. The holographic projection device may comprise a motion sensor or an audio sensor for switching on for a pre-set length of time. The holographic projection device may comprise a sound chip for producing a voice or music effect. This invention relates to holographic projection devices for displaying a 3-dimensional image, and the principal use of the invention is for optical decoration.
Patent CA-2295805-C (CA)
Title: Multi-function control handle
Inventor: BERGMAN BRENT A
IPC: B66F9/20
Filed: 1998-07-20
Granted: 2006-05-16
Abstract: A handle (35) mounted generally horizontally on a fork lift truck for controlling forward and reverse speed of movement of the truck and raising and lowering forks is carried by a control device (100). The control device includes a shaft (150) with a centrally positioned spherical section (160) contained in a socket (172, 176) in a support member (170).      The shaft is therefore free to rotate about the center (177) of the sphere. A ramp cam (200) is mounted on the support member surrounding the shaft. A slider (180) mounted on the shaft is pressed against the cam by action of a spring (190). This action rangement assures that the shaft and control handle remain centered until acted upon by an operator of the truck. Two linear potentiometers (270, 290) provide electrical output signals representing the X (horizontal) and Y (vertical) positions of the end of the shaft opposite the control handle. The cam is provided with four distinct compound surfaces (201-204). For vertical movement of the handle, the slopes of the two lower surfaces (202, 203) are greater than the slopes of the two upper surfaces (201, 204). The slopes of each surface are also different in the forward and reverse direction. This arrangement provides the illusion that the same force is required to move the handle in any direction. A decent (215) in the center of the cam requires a slightly greater force to move the handle from the center position.
Patent CA-2296166-C (CA)
Inventor: RIVIGLIA MIKE
IPC: B62M1/24
Filed: 2000-01-17
Granted: 2010-03-30
Abstract: A foot operated wheeled vehicle is disclosed, the vehicle having a frame, a rear wheel, a front wheel pivotally mounted to the frame and handle bars operatively coupled to the front wheel for pivoting the front wheel in the desired angle. The rear wheel has a hub mounted to the frame, the hub having a sprocket mechanically coupled to the hub, a drive sprocket rotatably mounted to the frame and mechanically coupled to the sprocket of the rear wheel by a chain. The vehicle also has a right and left pedal pivotally mounted to the right and left side of the frame, respectively, and pivotally movable between a raised and lowered position, the right and left pedal being mechanically coupled to the drive sprocket by a ratchet mechanism. The ratchet mechanism is adapted and configured to rotate the drive sprocket only when a pedal is moved from its elevated to its lowered position. The ratchet mechanism also permits the right and left pedal to be move independent of each other. Each of the pedals are biased towards their elevated position by a spring.
Patent CA-2299104-C (CA)
Title: Improved recovery and transportation of heavy crude oils
Inventor: CHHEDA BHARATI DINKAR
IPC: C10L1/22
Filed: 2000-02-22
Granted: 2004-05-04
Abstract: Novel amine-chelate complexes are useful in significantly reducing the viscosity of heavy crude oils, facilitating the recovery and transportation of such heavy crude oils. The amine-chelate complexes are formed by heating together an organic amine with a chelating agent.
Patent CA-2299124-C (CA)
Inventor: KOBLITZ KARL RUDOLF
IPC: H04N5/06
Filed: 1993-02-11
Granted: 2001-01-30
Abstract: In a vertical sawtooth generator of a vertical deflection circuit, a first comparator generates an output signal when a retrace portion of a sawtooth signal is at a first magnitude to initiate a vertical trace portion of the sawtooth signal. An amplifier responsive to the sawtooth signal generates a feedback current at a time that occurs more than one-half of the length of vertical trace portion after vertical trace is initiated. The feedback current is coupled to a capacitor to develop a capacitor voltage. The capacitor voltage is applied via a voltage-to-current converter to an integrating capacitor to develop in the integrating capacitor the trace portion of the sawtooth signal.
Patent CA-2301232-C (CA)
Title: Tete de distribution pour dispositif du type a valve ou a pompe
Inventor: BAUDIN GILLES
IPC: B65D47/34
Filed: 2000-03-15
Granted: 2005-10-18
Abstract: La présente demande concerne une tête de distribution (10) destinée à l'actionnement d'un organe de distribution (4), notamment une pompe ou une valve, et à la distribution d'un produit, notamment cosmétique, via au moins un orific e de distribution (13), ladite tête de distribution (10) comportant un élément (1 5) apte à former étanchéité entre la tête de distribution (10) et une tige de pompe ou de valve (6) dudit organe de distribution (4), ledit élément d'étanchéité (15) étant apte à venir en engagement étanche à l'intérieur de ladite tige de pompe ou de valve (6), et étant apte à faire étanchéité pour des tiges de pompe ou de valve ayant des diamètres intérieurs différents.
Patent CA-2306936-C (CA)
Inventor: GRINDSTAFF WILLIAM C
IPC: E21B19/16
Filed: 1998-10-29
Granted: 2007-09-18
Abstract: Apparatus is described and claimed for unscrewing first and second threaded sections of a drill string from one another. The apparatus has an arm mounted for rotation about a first vertical axis, the arm forming a first recess.  A first actuating mechanism is provided for rotating the arm about the first axis. There is an adapter removably mounted on the arm for clamping the first pipe section. A second actuating mechanism is mounted on the arm and is removably connectable to first and second clamping cams of the adapter for rotating between the retracted and clamping positions. The adapter is replaceable in response to being disconnected from the arm and from the second actuating mechanism. A turning mechanism is provided for rotating a second pipe section while a first pipe section is clamped immovably by the arm.
Patent CA-2308286-C (CA)
Title: Method and apparatus for cooling and atomizing liquid or pasty substances
Inventor: LINGLER KLAUS
IPC: A23P10/20
Filed: 1998-09-29
Granted: 2005-08-09
Abstract: The invention relates to a method for cooling and atomizing liquid or paste- like substances or mixtures of substances. According to said method, a liquid or paste-like substance/substance mixture is mixed with liquid or supercritical carbon dioxide, whereupon said liquid or paste-like substance/substance mixture and liquid or supercritical carbon dioxide is expanded. A device for cooling the liquid or paste-like substances or substance mixture has a storage vessel for the liquid or paste-like substances/substance mixture with a duct allocated thereto, wherein a conveyor device for said liquid or paste-like substance/substance mixture is arranged. A source for liquid or supercritical carbon dioxide is also provided and a duct is allocated thereto, in addition to a connection point through which the duct allocated to the storage vessel for the liquid or paste-like substance/substance mixture is connected to the source for liquid or supercritical carbon dioxide. An expansion device is also provided.
Patent CA-2311867-C (CA)
Inventor: THOMAS HUGHEN GERRARD
IPC: H05H1/34
Filed: 2000-06-16
Granted: 2007-11-20
Abstract: A method of centering an electrode in the nozzle of a plasma arc torch head is disclosed. The method involves complementing the external wall of the swirl to the internal taper of the nozzle; complementing the internal wall of the swirl to the external taper of the electrode; fitting the hollow tapered swirl so formed in the hollow nozzle to abut the inner taper of the nozzle; and fitting the electrode in the hollow swirl to abut the inner taper of the swirl to center the electrode within the nozzle. Also disclosed is a head for a plasma arc cutting torch which includes a swirl located between the nozzle and the electrode, through which plasma fuel gas is introduced into the nozzle, characterized in that the plasma fuel gas is introduced directly into the plasma formation zone or plenum beyond the junction between the nozzle body and cone end thereby avoiding change in direction within the conical end of the nozzle before the plasma formation zone.
Patent CA-2316220-C (CA)
Inventor: GOBEL ARMIN
IPC: C08G18/08
Filed: 1999-09-24
Granted: 2008-11-04
Abstract: Composition de liant diluable à l'eau renfermant une ou plusieurs résines en pâte de polyuréthanne-urée hydroxyfonctionnelles, diluables à l'eau, ayant une teneur en groupes urée (calculée en -NHCONH-) de 10 à 300 mmol, une teneur en groupes uréthanne (calculée en -HCOO-) de 20 à 300 mmol pour 100 g de résine solide, un indice d'hydroxyle de 20 à 250, un indice d'acide de 15 à 80 et une masse molaire (Mn) de 1000 à 20000, obtenue I) en préparant un prépolymère de polyuréthanne renfermant des groupes NCO, en faisant réagir a1) des composés hydroxyfonctionnels d'une masse molaire (Mn) de 360 à 8000 avec a2) des polyisocyanates et a3) des composés ayant au moins un groupe réagissant avec un isocyanate et au moins un groupe ionique; II) en faisant ensuite réagir le prépolymère de polyuréthanne avec a4) des monoamines hydroxyfonctionnelles et, cas échéant, des polyols; et (III) en neutralisant des groupes transformables en groupes ioniques, et 2,0 à 25 % en poids, par rapport à la teneur en matières solides de résine polyuréthanne-urée, d'un ou plusieurs polyétherpolyols d'une masse molaire de 400 à 5000.
Patent CA-2316325-C (CA)
Title: Fast-fluidized bed reactor for mto process
Inventor: MILLER LAWRENCE W
IPC: C10G3/00
Filed: 2000-08-18
Granted: 2009-07-14
Abstract: An oxygenate conversion process and fast-fluidized bed reactor are disclosed having an upper disengaging zone and a lower reaction zone. The process is carried out in a reaction zone having a dense phase zone in the lower reaction zone and a transition zone which extends into the disengaging zone. A portion of the catalyst is withdrawn from above the transition zone in the disengaging zone, at least partially regenerated, and returned to a point above the dense phase zone, while catalyst is continuously circulated from the disengaging zone to the lower reaction zone. The process provides a method for carrying out the overall conversion reaction with a significantly reduced catalyst inventory compared to conventional bubbling bed reactors.
Patent CA-2320903-C (CA)
Title: Appareil et procede pour la separation de phases fluides au fond d'un trou de forage
Inventor: RAVENSBERGEN JOHN E
IPC: E21B43/25
Filed: 1999-02-24
Granted: 2007-12-11
Abstract: L'invention concerne un procédé et un appareil permettant de séparer des fluides s'écoulant à travers un passage (D) d'un puits de forage. Ledit procédé consiste à séparer les fluides pompés en fond (WB) par centrifugation, à augmenter progressivement l'accélération centrifuge, à établir un écoulement annulaire, à établir progressivement un écoulement annulaire, et à recueillir le fluide dans une chambre collectrice (2) à section d'écoulement croissante. L'invention concerne également un procédé et un appareil permettant d'utiliser un outil de séparation de fluides (DFS) comprenant des tubes pour des opérations de fond, notamment des tubes spiralés (CT).
Patent CA-2322888-C (CA)
Title: Arrangement for operating a transportation system with a magnetic levitation vehicle
Inventor: HENNEBERGER GERHARD
IPC: B60L13/10
Filed: 1999-01-18
Granted: 2007-09-04
Abstract: The invention relates to an arrangement for operating a transportation syste m with a magnetic levitation vehicle, whereby the inventive arrangement consists of an integrated transmission system comprising a power transmission system for inductive transmission of electric power, a linear motor for transmission of motive power and a magnetic levitation system for transmission of a carrying force and/or a lateral guiding force.
Patent CA-2328658-C (CA)
Inventor: KIKUCHI KAZUYA
IPC: H01R13/115
Filed: 2000-12-18
Granted: 2004-08-03
Abstract: A connector contact has a main body portion, a pair of elastic pieces extending like beams on the same side from two sides of the main body portion, and contact portions respectively formed at distal ends of the elastic pieces, to come into contact with a male contact inserted between the contact portions. The pair of elastic pieces have, at their distal ends, protrusions at which the contact portions are to be arranged and each of which projects in a lateral direction opposite to the other elastic piece. The pair of elastic pieces are deformed by twisting or bending, so that the contact portions oppose each other.
Patent CA-2330344-C (CA)
Inventor: BOUDY FRANCOISE
IPC: A61K8/66
Filed: 2000-12-27
Granted: 2007-04-10
Abstract: L'invention concerne une composition pour la teinture d'oxydation des fibr es kératiniques, en particulier des fibres kératiniques humaines telles que les cheveux, comprenant, dans un milieu approprié pour la teinture, au moins un colorant d'oxydation, et une association comprenant au moins un cyclohomopolymère de dialkyldiallylammonium et au moins un autre polyammonium quaternaire particulier. L'invention concerne également les procédés et dispositifs de teinture metta nt en oeuvre ladite composition.