baber/WOPTO huggingface dataset:
Patent CA-2207408-C (CA)
Inventor: STENTON CONRAD
IPC: H04N5/33
Filed: 1996-10-09
Granted: 2000-05-02
Abstract: A thermal imaging device (10) provides for its use with a variety of accessory telescopic lenses (12). Each of the accessory telescopic lenses (12) and the thermal imaging device (10) include cooperating physical features allowing the lenses (12) to be mated with the device (10) in a single relative position. Each lens (12) also carries a uniquely positioned magnet (176), and the thermal imaging device (10) includes a plurality of magnetically-responsive sensors (178) responding to the magnets (176) of the various lenses (12) to identify which (if any) of the accessory lens (12) is installed on the device (10). Some of the accessory lenses (12) also include a variable-power feature. These variable-power lenses (12) have an additional magnet (182) moving between an effective position and an ineffective position in response to a user-selected power setting for the lens (12). The thermal imaging device (10) includes an additional magnetically-responsive sensor (178) affected by the additional magnet (182) in its effective position, but not effected in the ineffective position of this additional magnet (182). Thus, the thermal imaging device (10) also identifies the power setting of an installed variablepower lens (12). The thermal imaging device (10) is provided with internal adjustments and operational options which are automatically implemented dependent upon which of the accessory lenses (12) a user installs on the device (10).
Patent CA-2208613-C (CA)
Inventor: COON ROBERT J
IPC: E21B34/06
Filed: 1997-06-23
Granted: 2002-11-19
Abstract: The present invention provides a fluid flow control device for controlling the formation fluid flow rates through a production string. The device includes a generally tubular body for placement into the wellbore. The tubular body has a screen at an outer surface for preventing sand from entering into tabular body. The fluid flowing through the screen passes through a labyrinth. A slidable sleeve on the labyrinth controls the fluid velocity there through. The slidable sleeve screen is moved by an electrically-operated device such as a motor paced in the production string. The fluid leaving the labyrinth passes to a tubing in the tubular body for carrying the fluid to the surface. The flow control device further may include a control circuit in the production string for controlling the operation of the electrically-operated device. The control circuit may communicate with the a surface control unit preferably a computer-based system which may provide commands to the downhole control circuit for causing the electrically-operated device to adjust the position of the sleeve. The sleeve may be positioned at any place on the labyrinth, providing accurate control over the flow rate. The surface control unit may communicate with the downhole control circuit via a data communication link which may be a cable or a trans/receiver system. 1. A fluid flow restricting device for use in a wellbore that is producing a fluid from a zone of interest comprising:  (a) an elongated body for placement within the wellbore adjacent the zone of interest;     (b) a fluid communication device in the body for enabling the fluid to flow from the zone of interest into a first fluid flow section in the body;      (c) a flow control device in the body for receiving the fluid from the first fluid flow section the flow control device having (i) a restricted path for passing the fluid therethrough, (ii) a slidable member over the restricted path the slidable member adapted to be positioned over the restricted path between a first position and a second position for controlling the flow rate of the fluid through the restricted path; and (c) an electrically-operated mechanical device within the body for positioning the slidable member at a any desired position between the first and second positions.
Patent CA-2209208-C (CA)
Title: Circuit for transmitting a measurement current from an intrinsically safe sensor to a non-intrinsically safe area
Inventor: AHR ROBERT
IPC: G08C19/02
Filed: 1997-06-26
Granted: 2000-09-12
Abstract: This circuit arrangement comprises a transformer (2) for transmitting a measurement current (I), which is output by a sensor arrangement (1) at a measurement location situated in an intrinsically safe area (10), to a non-intrinsically safe area (20), in which a current measuring resistor (5) is situated. A DC converter (3) serves for the power supply of the sensor arrangement. A transformer (2) belongs to the DC converter (3), has a primary winding, which faces the non-intrinsically safe area, two identical partial windings (21, 22) connected in series in the same sense, and a single secondary winding (23), which faces the intrinsically safe area. A first end of the current measuring resistor (5) is connected to a circuit zero-point (SN) and a second end to a center tap of an output stage (31) of the DC converter (3). The center tap is connected to the input of an offset adjusting stage (6), an output of which is connected to the input of a voltage/current converter (7). A power source (4) is connected to the junction point of the partial windings (21, 22) and to the circuit zero-point.
Patent CA-2209333-C (CA)
Title: Cryogenic rectification system with kettle liquid column
Inventor: PROSSER NEIL MARK
IPC: F25J3/04
Filed: 1997-06-30
Granted: 2000-10-10
Abstract: A cryogenic rectification system for producing oxygen and nitrogen employing a kettle liquid column which processes oxygen-enriched kettle liquid from a higher pressure column and which is reboiled by a fluid taken from below the top of the higher pressure column.
Patent CA-2212016-C (CA)
Title: Composite conformable pressure vessel
Inventor: BLAIR MICHAEL D
IPC: F17C/
Filed: 1996-01-11
Granted: 2007-06-12
Abstract: A pressure vessel (10) for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells (12) and zero or more interior cells. The cell geometry ensures that the cells (12) meet o ne another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web (14) secured about the cells includes two sheets that are tangent to the cells (12). Unused volumes between the cells (12) and the web contain wedges of foam or rubber. A valve (22) provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.
Patent CA-2212446-C (CA)
Inventor: WAN NICK C
IPC: C12N1/00
Filed: 1995-12-21
Granted: 2010-09-21
Abstract: La présente invention concerne une méthode de lyse de cellules. Cette méthode comprend l'écoulement simultané d'une suspension de cellules et d'une solution de lyse dans un mélangeur statique, duquel les cellules sortant lysées. Un autre aspect de la présente invention concerne une méthode de précipitation des constituants cellulaires, des protéines et des acides nucléiques à partir d'un lysat de cellules ou d'une autre solution contenant une matière pouvant être précipitée. Cette méthode consiste à faire s'écouler simultanément un lysat de cellules ou autre solution contenant des protéines et une solution de précipitation dans un mélangeur statique, duquel le lysat ou la solution de protéines sort avec tous ses éléments pouvant être précipités ayant précipité. Un autre aspect de la présente invention concerne une méthode consistant à combiner les deux méthodes susmentionnées en utilisant des mélangeurs statiques en série.
Patent CA-2213186-C (CA)
Inventor: BISHOP RALPH L
IPC: H01H37/76
Filed: 1997-08-14
Granted: 2000-10-31
Abstract: A thermal pellet holds contact-carrying resilient switch blades in bending stress with the contacts closed.  Melting of the thermal pellet relieves the bending stress and allows movement of the switch blades to open the contacts.
Patent CA-2216045-C (CA)
Title: Apparatus and method for preparation of liquid/solid slurries
Inventor: BILAK ROMAN A
IPC: B01F11/00
Filed: 1997-09-19
Granted: 2003-09-09
Abstract: An apparatus and method are disclosed for the continuous formation of slurry. The apparatus includes a hopper to hold particulate material; one or more transport/mixing assemblies that mix and transport the solid material and a carrier liquid; and a mixing/averaging tank that receives the solid/liquid mixture from the transport/mixing assembly and performs a final mixing and averaging of the mixture to achieve a desired slurry consistency. An auger inside the tank continuously mixes the slurry and has one or more outlet ports to continuously discharge the slurry. The auger may be bi-directional, to direct the slurry towards dual outlets on opposing ends of the tank. Preferably, a reciprocating screen deck is provided to eliminate oversized particulates before the mixture enters the mixing/averaging tank. Carrier liquid is introduced at several points in the process, including into the transport/mixing assemblies, at the screen deck, and into the mixing/averaging tank. The transport mixing/assemblies may consist of an auger housed within a tubular housing, with rotation of the auger serving both to mix the solids and liquid and to transport the mixture through the assembly. The transport/mixing assemblies may alteratively consist of a stepwise array of auger stages with the respective auger housings interconnecting to permit material to be transported from one end of the assembly to the other. Alternatively, the assembly may employ a high-pressure jet of carrier liquid that both combines with the solid particulates and propels the mixture through a housing.
Patent CA-2221460-C (CA)
Inventor: FISCHER WOLFGANG
IPC: C08F297/04
Filed: 1997-04-03
Granted: 2006-07-11
Abstract: Rubber-elastic block copolymers of at least one hard block A consisting of styrene monomers and at least one elastomeric block (B/A) of styrene monomers and containing dienes, the glass temperature T g of block A being over 25 °C and that of block B/A is under 25 °C and the phase volume ratio between block A and block B/A being such that the proportion of the hard phase in the entire block copolymer is 1 to 40 vol %, and the proportion by weight of the diene is under 50 wt.%. The relative proportion of 1,2 bonds of the polydiene in relation to the sum of 1,2 and 1,4 cis/trans-bonds is under 15 %, process for their production by anionic polymerisation by means of lithium alkyl in a non-polar solvent in the presence of a soluble potassium salt and their use for the production of mouldings.
Patent CA-2225382-C (CA)
Title: Derives d'acide sialique
Inventor: YUGAMI TOMOKO
IPC: G01N33/50
Filed: 1996-06-21
Granted: 2008-06-03
Abstract: L'invention porte sur des dérivés d'acide sialique représentés par la formule générale (1AA) ainsi que sur d'autres dérivés de cet acide.  Dans cette formule, R<1> représente un reste de cholestane ou un autre composé stéroïde, R<2> représente un hydrogène ou un méthyle, R<3> représente un alkyle en C1-C6, etc., R<4> représente un hydrogène ou un acyle, R<5> représente R<15>O- (R<15> étant un acyle en C2-C7), etc., x représentant un oxygène ou un soufre. Ces dérivés, qui ont pour effet d'accroître une activité de choline-acétyltransférase dans les neurones cholinergiques, s'avèrent efficaces pour prévenir et traiter la démence, des troubles de la mémoire, des troubles des nerfs périphériques, etc.
Patent CA-2228610-C (CA)
Title: Produits a liberation controlee
Inventor: ROLFES HEIDI
IPC: A61K9/22
Filed: 1996-08-16
Granted: 2008-06-03
Abstract: L'invention a pour objet un procédé de fabrication d'un interpolymère solide prévu pour être utilisé comme matrice de libération contrôlée pour un produit à libération contrôlée, administré par voie orale. Ce procédé consiste à dissoudre un premier polymère dans un solvent, à dissoudre un ou plusieurs seconds polymères complémentaires pouvant se complexer avec le premier polymère pour former le complexe interpolymère, dans un solvent, à ajouter un inhibiteur de complexation, à mélanger ces solutions ensemble, à ajuster le pH si nécessaire, et à pulvériser le produit dans un récipient pour retirer, au moins partiellement, les solvants et à produire ainsi des particules solides du complexe interpolymère. Un agent actif tel qu'un médicament est, de préférence, encastré ou enrobé dans le complexe interpolymère avant d'être séché par pulvérisation ou il peut être incorporé ultérieurement par tout moyen approprié.
Patent CA-2233562-C (CA)
Inventor: DE LAHARPE VINCENT
IPC: F16L55/04
Filed: 1998-05-22
Granted: 2008-08-05
Abstract: The device for metering the volume of gas flowing in a pipe, downstream from an expander-regulator, comprises in succession a flow straightener, a velocity-measuring flowmeter, and a silent flowrate limiter. The straightener comprises a support ring in which there are mounted a first perforated plate having holes distributed over its surface, together with a first porous plate and a spacer in the form of an annulus co-operating with the first perforated plate. The limiter comprises an upstream web defining a second perforated plate perforated by a defined number of calibrated holes, the total flow section thereof being much less than the total flow section of the first perforated plate, a second perforated plate, and a downstream web defining a third perforated plate having holes of total flow section that is much greater than the total flow section of the second perforated plate of the upstream web.
Patent CA-2237871-C (CA)
Title: Exterior mounting plate assembly
Inventor: LACY MICHAEL A
IPC: E04F19/00
Filed: 1998-05-19
Granted: 2002-01-01
Abstract: A reversible wall mounting plate adapted for mounting to a surface of stepped siding comprising two pieces, a frame and a face portion. The fra me, which is symmetrical about an axis, has a continuous wall with opposite firs t and second free-edge surfaces. Both free-edge surfaces are configured in a stepp ed fashion and have at least two portions of convex curvature. The convex porti ons of the first free-edge surface have different dimensions from the convex por tions of the second free-edge surface in order to accommodate differently sized si ding. The face portion includes a front wall with a peripheral wall extending ther efrom; the face portion and frame have cooperating mating elements permitting the f ace portion to be releasably attached to the frame.
Patent CA-2237970-C (CA)
Inventor: MORAWSKI ROMAN Z
IPC: G01J3/28
Filed: 1998-05-19
Granted: 2006-12-19
Abstract: An apparatus and method for in situ spectral measurement is disclosed. The apparatus uses a low-resolution grating to disperse light and thereby image a spectrum thereof.  The imaged spectrum is converted into a digital electrical signal and is processed in order to enhance the spectral information. The resulting spectral information is analogous to that captured using a higher resolution spectral imager with optical processing of the spectral data.
Patent CA-2242266-C (CA)
Inventor: CANTONI CHARLES W
IPC: H04N1/41
Filed: 1997-11-06
Granted: 2004-09-28
Abstract: An improved imaging sequence storage and transmission system is disclosed wherein the data files from the imaging sequence may be initially compressed using standard lossless compression techniques and then a non-linear time delay data compression technique may be performed on the data the prior to transmission via telephonic or other means to a remote station for review and analysis. The non-linear time delay data compression technique may also be initially performed on the data file prior to initial storage and then a more severe non-linear time delay data compression technique may be performed on the data the prior to transmission to reduce the ratio of the original data file to the transmitted data file to about 100:1 or more.
Patent CA-2243005-C (CA)
Inventor: TOMOE SEIJI
IPC: F16D55/225
Filed: 1998-07-13
Granted: 2006-05-30
Abstract: A disk brake device comprises a brake lever 3A toward which a tilting force is applied in opening operation. This brake lever 3A is formed at its lower end with an outwardly protruding stopper 58 into which an adjusting bolt 56 is screwed vertically. A base seat 59 is provided on a base plate 1 immediately under the stopper. A pinion 61 is fitted over an upper end of the adjusting bolt 56 via a one-way clutch 60 so as to rotate the adjusting bolt 56 only in a direction of fasting the same downward. A rack 67, which is supported by the base plate 1, is meshed with the pinion to have a predetermined backlash and to extend in a direction of swing of the brake levers 3A, 3 B. This disk brake device allows to assuredly maintain the brake levers 3A, 3 B at equally opened positions at left and right in a brake releasing condition, even if brake linings 9A, 9B are worn out and adjustment is made by an automatic lining wear adjusting unit 53 to automatically decrease the gap caused by wear of the brake linings 9A, 9B.
Patent CA-2244379-C (CA)
Title: Loadbreak connector assembly which prevents switching flashover
Inventor: STEPNIAK FRANK M
IPC: H02G15/06
Filed: 1998-07-27
Granted: 2001-07-10
Abstract: Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a transition shoulder portion of the loadbreak bushing insert. The bushing insert is provided with vents to vent a cavity formed between the elbow cuff and the transition shoulderportion of the bushing insert with ambient air to avoid a decrease in pressure within the connection region and avoid a decrease in the dialectric strength of the air therein thus preventing flashover. Alternatively, the power cable elbow includes an insulative layer covering a portion of the probe to increase the distance between the energized electrode and ground. Another structure which increases the distance from the energized electrode to ground includes an insulative material covering an upper portion of the bushing insert receiving opening within the conductive insert portion of the power cable elbow connector.
Patent CA-2245657-C (CA)
Title: Pelletized composition for treatment of storm water runoff
Inventor: STEWART WILLIAM C
IPC: B01J2/00
Filed: 1997-01-03
Granted: 2005-08-02
Abstract: A pelletized composition and method of using this composition for removing pollutants from storm water runoff. A bed of the pellets (10) has a useful initial permeability to storm water runoff, and retains a significant proportion of this permeability for a period of several years. Preferably, the pellets are dried to a moisture content of less than 25 % so that they are able to withstand a crush force of at least 7 lb., without structural failure. Optionally, the pellets may contain gravel that forms a core (12) of the compost pellet and that assists in causing the compost (14) to agglomerate into a rounded pellet. When immersed in water, the pellets retain the original dry shape and maintain a significant proportion of the crush strength while providing interstitial spaces through which storm water can flow thereby reducing the problem of sedimentation that is encountered in unpelletized beds of compost used in this service.
Patent CA-2249229-C (CA)
Inventor: NICOLAU IOAN
IPC: B01J23/58
Filed: 1997-03-26
Granted: 2005-05-10
Abstract: Cette invention se rapporte à un catalyseur particulièrement utile dans la préparation d'esters insaturés, par exemple par la réaction d'éthylène, d'oxygène et d'acide acétique en phase vapeur, afin de former de l'acétate de vinyle. Ce catalyseur est constitué par un support en nid d'abeilles recouvert de silice et contenant du palladium et de l'or dans toute la couche de revêtement en silice. De tels catalyseurs se caractérisent par une chute de pression réduite et par un rendement espace-temps élevé pour l'acétate de vinyle.
Patent CA-2250794-C (CA)
Title: Apparatus for making a bowl from a loaf of bread
Inventor: WOODS CHARLES
IPC: A21C15/04
Filed: 1998-10-20
Granted: 2007-01-02
Abstract: A device for hollowing out food products such as loaves of hemispherically shaped bread for the purpose of using the hollowed out loaf as a bowl for food. The device has a knife for cutting into the loaf and a loaf platform for holding the loaf of bread. The platform and knife are angled so that the cutting action removes a uniform sized conical section of bread from the central region of the loaf. The knife is mounted in restricted manner so that it will penetrate the loaf for cutting of the cone but will not pass through the loaf.
Patent CA-2255036-C (CA)
Title: Coiled insect fumigant
Inventor: KANDATHIL THOMAS V
IPC: A01N53/04
Filed: 1997-05-13
Granted: 2000-12-26
Abstract: Disclosed herein are mosquito coils having an enlarged outer portion (11) for providing quick coverage of an insect control ingredient in a space that previously had none. The coil is provided with urea for greater breakage resistance and kerosene and peanut shell powder to improve igniting and burning characteristics.
Patent CA-2255493-C (CA)
Inventor: BLACK MICHAEL DARRYL
IPC: A61L24/02
Filed: 1998-12-09
Granted: 2008-11-18
Abstract: A physiologically suitable, non-toxic photochemical agent for use as a glue to bind a synthetic material to tissue and tissue to tissue is disclosed wherein the agent is activated by exposure to electromagnetic radiation.
Patent CA-2255536-C (CA)
Inventor: JONES LLOYD G
IPC: E21B43/26
Filed: 1998-12-07
Granted: 2003-07-29
Abstract: A method and apparatus for treating a long interval within a wellbore wherein a treatment fluid is delivered to selected levels within the interval by blocking flow to certain zones while allowing flow to others. A treatment tube extends substantially through the interval and is comprised of a perforated conduit which is open at its upper end and which has a plurality of openings spaced along its length. Each of the openings have a valve seat within said conduit at its entrance which is adapted to receive a valve means to seal and block flow through that opening. In operation, a treatment fluid is flowed through the treatment tube and out the openings into different levels within said wellbore. At desired intervals, valve means are introduced into the treatment fluid and are carried into the treatment tube to seat at a respective opening to thereby block flow through that opening while allowing continued flow through others
Patent CA-2257816-C (CA)
Title: Wet wipes with improved softness
Inventor: SMITH CHARLES ALLEN
IPC: D04H13/00
Filed: 1997-06-19
Granted: 2005-03-01
Abstract: An improved wet wipe includes a multiple layer basesheet to provide a unique combination of properties to the wipe which are not capable in a single layer basesheet. The layered basesheet includes at least two layers which include different fibers and have different physical properties. One of the layers may include polyethylene fibers to provide a soft, gentle feel for contacting the skin of the user during use while the other layer may include polypropylene fibers to provide strength and resiliency to the wipe to withstand the forces exerted by the user, and maintain its shape and integrity in use.
Patent CA-2260790-C (CA)
Title: Deoxynojirimycin derivatives and their uses as glucosylceramidase inhibitors
Inventor: KOOMEN GERRIT JAN
IPC: A61K31/575
Filed: 1997-07-14
Granted: 2007-01-09
Abstract: Deoxynojirimycin derivatives containing a large hydrophobic moiety, such as cholesterol or adamantame-methanol, linked through a spacer, such as pentamethylene, to the nitrogen atom of deoxynojirimycin, an d salts thereof, inhibit glucosylceramidase and may be useful in the treatment of diseases involving a ceramide-mediated signalling proces s, such as Gaucher disease.